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+# BTC/USDT 价格规律性全面分析报告
+
+> **数据源**: Binance BTCUSDT | **时间跨度**: 2017-08-17 ~ 2026-02-01 (3,091 日线) | **时间粒度**: 1m/3m/5m/15m/30m/1h/2h/4h/6h/8h/12h/1d/3d/1w/1mo (15种)
+
+---
+
+## 目录
+
+- [1. 数据概览](#1-数据概览)
+- [2. 收益率分布特征](#2-收益率分布特征)
+- [3. 波动率聚集与长记忆性](#3-波动率聚集与长记忆性)
+- [4. 频域周期分析](#4-频域周期分析)
+- [5. Hurst 指数与分形分析](#5-hurst-指数与分形分析)
+- [6. 幂律增长模型](#6-幂律增长模型)
+- [7. 量价关系与因果检验](#7-量价关系与因果检验)
+- [8. 日历效应](#8-日历效应)
+- [9. 减半周期分析](#9-减半周期分析)
+- [10. 技术指标有效性验证](#10-技术指标有效性验证)
+- [11. K线形态统计验证](#11-k线形态统计验证)
+- [12. 市场状态聚类](#12-市场状态聚类)
+- [13. 时序预测模型](#13-时序预测模型)
+- [14. 异常检测与前兆模式](#14-异常检测与前兆模式)
+- [15. 综合结论](#15-综合结论)
+
+---
+
+## 1. 数据概览
+
+![价格概览](output/price_overview.png)
+
+| 指标 | 值 |
+|------|-----|
+| 日线样本数 | 3,091 |
+| 小时样本数 | 74,053 |
+| 价格范围 | $3,189.02 ~ $124,658.54 |
+| 缺失值 | 0 |
+| 重复索引 | 0 |
+
+数据切分策略（严格按时间顺序，不随机打乱）：
+
+| 集合 | 时间范围 | 样本数 | 比例 |
+|------|---------|--------|------|
+| 训练集 | 2017-08 ~ 2022-09 | 1,871 | 60.5% |
+| 验证集 | 2022-10 ~ 2024-06 | 639 | 20.7% |
+| 测试集 | 2024-07 ~ 2026-02 | 581 | 18.8% |
+
+---
+
+## 2. 收益率分布特征
+
+### 2.1 正态性检验
+
+三项独立检验**一致拒绝正态假设**：
+
+| 检验方法 | 统计量 | p 值 | 结论 |
+|---------|--------|------|------|
+| Kolmogorov-Smirnov | 0.0974 | 5.97e-26 | 拒绝 |
+| Jarque-Bera | 31,996.3 | 0.00 | 拒绝 |
+| Anderson-Darling | 64.18 | 在所有临界值(1%~15%)下均拒绝 | 拒绝 |
+
+### 2.2 厚尾特征
+
+| 指标 | BTC实际值 | 正态分布理论值 | 倍数 |
+|------|----------|--------------|------|
+| 超额峰度 | 15.65 | 0 | — |
+| 偏度 | -0.97 | 0 | — |
+| 3σ超越比率 | 1.553% | 0.270% | **5.75x** |
+| 4σ超越比率 | 0.550% | 0.006% | **86.86x** |
+
+4σ 极端事件的出现频率是正态分布预测的近 87 倍，证明 BTC 收益率具有显著的厚尾特征。
+
+![收益率直方图 vs 正态](output/returns/returns_histogram_vs_normal.png)
+
+![QQ图](output/returns/returns_qq_plot.png)
+
+### 2.3 多时间尺度分布
+
+| 时间尺度 | 样本数 | 均值 | 标准差 | 峰度 | 偏度 |
+|---------|--------|------|--------|------|------|
+| 1h | 74,052 | 0.000039 | 0.0078 | 35.88 | -0.47 |
+| 4h | 18,527 | 0.000155 | 0.0149 | 20.54 | -0.20 |
+| 1d | 3,090 | 0.000935 | 0.0361 | 15.65 | -0.97 |
+| 1w | 434 | 0.006812 | 0.0959 | 2.08 | -0.44 |
+
+**关键发现**: 峰度随时间尺度增大从 35.88 → 2.08 单调递减，趋向正态分布，符合中心极限定理的聚合正态性。
+
+![多时间尺度分布](output/returns/multi_timeframe_distributions.png)
+
+---
+
+## 3. 波动率聚集与长记忆性
+
+### 3.1 GARCH 建模
+
+| 参数 | GARCH(1,1) | EGARCH(1,1) | GJR-GARCH(1,1) |
+|------|-----------|-------------|-----------------|
+| α | 0.0962 | — | — |
+| β | 0.8768 | — | — |
+| 持续性(α+β) | **0.9730** | — | — |
+| 杠杆参数 γ | — | < 0 | > 0 |
+
+持续性 0.973 接近 1，意味着波动率冲击衰减极慢 — 一次大幅波动的影响需要数十天才能消散。
+
+![GARCH条件波动率](output/returns/garch_conditional_volatility.png)
+
+### 3.2 波动率 ACF 幂律衰减
+
+| 指标 | 值 |
+|------|-----|
+| 幂律衰减指数 d（线性拟合） | 0.6351 |
+| 幂律衰减指数 d（非线性拟合） | 0.3449 |
+| R² | 0.4231 |
+| p 值 | 5.82e-25 |
+| 长记忆性判断 (0 < d < 1) | **是** |
+
+绝对收益率的自相关以幂律速度缓慢衰减，证实波动率具有长记忆特征。标准 GARCH 模型的指数衰减假设可能不足以完整刻画这一特征。
+
+![ACF幂律衰减](output/volatility/acf_power_law_fit.png)
+
+### 3.3 ACF 分析证据
+
+| 序列 | ACF显著滞后数 | Ljung-Box Q(100) | p 值 |
+|------|-------------|-----------------|------|
+| 对数收益率 | 10 | 148.68 | 0.001151 |
+| 平方收益率 | 11 | 211.18 | 0.000000 |
+| 绝对收益率 | **88** | 2,294.61 | 0.000000 |
+| 成交量 | **100** | 103,242.29 | 0.000000 |
+
+绝对收益率前 88 阶 ACF 均显著（100 阶中的 88 阶），成交量全部 100 阶均显著（ACF(1) = 0.892），证明极强的非线性依赖和波动聚集。
+
+![ACF分析](output/acf/acf_grid.png)
+
+![PACF分析](output/acf/pacf_grid.png)
+
+![GARCH模型对比](output/volatility/garch_model_comparison.png)
+
+### 3.4 杠杆效应
+
+| 前瞻窗口 | Pearson r | p 值 | 结论 |
+|---------|-----------|------|------|
+| 5d | -0.0620 | 5.72e-04 | 显著弱负相关 |
+| 10d | -0.0337 | 0.062 | 不显著 |
+| 20d | -0.0176 | 0.329 | 不显著 |
+
+仅在 5 天窗口内观测到弱杠杆效应（下跌后波动率上升），效应量极小（r=-0.062），比传统股市弱得多。
+
+![杠杆效应](output/volatility/leverage_effect_scatter.png)
+
+---
+
+## 4. 频域周期分析
+
+### 4.1 FFT 频谱分析
+
+对日线对数收益率施加 Hann 窗后做 FFT，以 AR(1) 红噪声为基准检测显著周期：
+
+| 周期(天) | SNR (信噪比) | 跨时间框架确认 |
+|---------|-------------|--------------|
+| 39.6 | 6.36x | 4h + 1d + 1w（三框架确认） |
+| 3.1 | 5.27x | 4h + 1d |
+| 14.4 | 5.22x | 4h + 1d |
+| 13.3 | 5.19x | 4h + 1d |
+
+**带通滤波方差占比**：
+
+| 周期分量 | 方差占比 |
+|---------|---------|
+| 7d | 14.917% |
+| 30d | 3.770% |
+| 90d | 2.405% |
+| 365d | 0.749% |
+| 1400d | 0.233% |
+
+7 天周期分量解释了最多的方差（14.9%），但总体所有周期分量加起来仅解释 ~22% 的方差，约 78% 的波动无法用周期性解释。
+
+![FFT功率谱](output/fft/fft_power_spectrum.png)
+
+![多时间框架FFT](output/fft/fft_multi_timeframe.png)
+
+![带通滤波分量](output/fft/fft_bandpass_components.png)
+
+### 4.2 小波变换 (CWT)
+
+使用复 Morlet 小波（cmor1.5-1.0），1000 次 AR(1) Monte Carlo 替代数据构建 95% 显著性阈值：
+
+| 显著周期(天) | 年数 | 功率/阈值比 |
+|-------------|------|-----------|
+| 633 | 1.73 | 1.01x |
+| 316 | 0.87 | 1.15x |
+| 297 | 0.81 | 1.07x |
+| 278 | 0.76 | 1.10x |
+| 267 | 0.73 | 1.07x |
+| 251 | 0.69 | 1.11x |
+| 212 | 0.58 | 1.14x |
+
+这些周期虽然通过了 95% 显著性检验，但功率/阈值比值仅 1.01~1.15x，属于**边际显著**，实际应用价值有限。
+
+![小波时频图](output/wavelet/wavelet_scalogram.png)
+
+![全局小波谱](output/wavelet/wavelet_global_spectrum.png)
+
+![关键周期追踪](output/wavelet/wavelet_key_periods.png)
+
+---
+
+## 5. Hurst 指数与分形分析
+
+### 5.1 Hurst 指数
+
+R/S 分析和 DFA 两种独立方法交叉验证：
+
+| 方法 | Hurst 值 | 解读 |
+|------|---------|------|
+| R/S 分析 | 0.5991 | 弱趋势性 |
+| DFA | 0.5868 | 弱趋势性 |
+| **平均** | **0.5930** | 弱趋势性 (H > 0.55) |
+| 方法差异 | 0.0122 | 一致性好 (< 0.05) |
+
+判定标准：H > 0.55 趋势性 / H < 0.45 均值回归 / 0.45 ≤ H ≤ 0.55 随机游走
+
+**多时间框架 Hurst**：
+
+| 时间尺度 | R/S | DFA | 平均 |
+|---------|-----|-----|------|
+| 1h | 0.5552 | 0.5559 | 0.5556 |
+| 4h | 0.5749 | 0.5771 | 0.5760 |
+| 1d | 0.5991 | 0.5868 | 0.5930 |
+| 1w | 0.6864 | 0.6552 | **0.6708** |
+
+Hurst 指数随时间尺度增大而增大，周线级别（H=0.67）呈现更明显的趋势性。
+
+**滚动窗口分析**（500 天窗口，30 天步进）：
+
+| 指标 | 值 |
+|------|-----|
+| 窗口数 | 87 |
+| 趋势状态占比 | **98.9%** (86/87) |
+| 随机游走占比 | 1.1% |
+| 均值回归占比 | 0.0% |
+| Hurst 范围 | [0.549, 0.654] |
+
+几乎所有时间窗口都显示弱趋势性，没有任何窗口进入均值回归状态。
+
+![R/S对数-对数图](output/hurst/hurst_rs_loglog.png)
+
+![滚动Hurst](output/hurst/hurst_rolling.png)
+
+![多时间框架Hurst](output/hurst/hurst_multi_timeframe.png)
+
+### 5.2 分形维度
+
+| 指标 | BTC | 随机游走均值 | 随机游走标准差 |
+|------|-----|-----------|-------------|
+| 盒计数维数 D | 1.3398 | 1.3805 | 0.0295 |
+| 由 D 推算 H (D=2-H) | 0.6602 | — | — |
+| Z 统计量 | -1.3821 | — | — |
+| p 值 | 0.1669 | — | — |
+
+BTC 的分形维数 D=1.34 低于随机游走的 D=1.38（序列更光滑），但 100 次蒙特卡洛模拟 Z 检验的 p=0.167 **未达到 5% 显著性**。
+
+**多尺度自相似性**：峰度从尺度 1 的 15.65 降至尺度 50 的 -0.25，大尺度下趋于正态，自相似性有限。
+
+![盒计数分形维度](output/fractal/fractal_box_counting.png)
+
+![蒙特卡洛对比](output/fractal/fractal_monte_carlo.png)
+
+![自相似性分析](output/fractal/fractal_self_similarity.png)
+
+---
+
+## 6. 幂律增长模型
+
+| 指标 | 值 |
+|------|-----|
+| 幂律指数 α | 0.770 |
+| R² | 0.568 |
+| p 值 | 0.00 |
+
+### 6.1 幂律走廊模型
+
+| 分位数 | 当前走廊价格 |
+|--------|-----------|
+| 5%（低估） | $16,879 |
+| 50%（中枢） | $51,707 |
+| 95%（高估） | $119,340 |
+| **当前价格** | **$76,968** |
+| 历史残差分位 | **67.9%** |
+
+当前价格处于走廊的 67.9% 分位，属于历史正常波动范围内。
+
+### 6.2 幂律 vs 指数增长模型对比
+
+| 模型 | AIC | BIC |
+|------|-----|-----|
+| 幂律 | 68,301 | 68,313 |
+| 指数 | **67,807** | **67,820** |
+| 差值 | +493 | +493 |
+
+AIC/BIC 均支持指数增长模型优于幂律模型（差值 493），说明 BTC 的长期增长更接近指数而非幂律。
+
+![对数-对数回归](output/power_law/power_law_loglog_regression.png)
+
+![幂律走廊](output/power_law/power_law_corridor.png)
+
+![模型对比](output/power_law/power_law_model_comparison.png)
+
+---
+
+## 7. 量价关系与因果检验
+
+### 7.1 成交量-波动率相关性
+
+| 指标 | 值 |
+|------|-----|
+| Spearman ρ (volume vs \|return\|) | **0.3215** |
+| p 值 | 3.11e-75 |
+
+成交量放大伴随大幅波动，中等正相关且极其显著。
+
+![量价散点图](output/volume_price/volume_return_scatter.png)
+
+### 7.2 Granger 因果检验
+
+共 50 次检验（10 对 × 5 个滞后阶），Bonferroni 校正阈值 = 0.001：
+
+| 因果方向 | 校正后显著的滞后阶数 | 最大 F 统计量 |
+|---------|-----------------|-------------|
+| abs_return → volume | **5/5 全显著** | 55.19 |
+| log_return → taker_buy_ratio | **5/5 全显著** | 139.21 |
+| squared_return → volume | **4/5 显著** | 52.44 |
+| log_return → range_pct | 1/5 | 5.74 |
+| volume → abs_return | 1/5 | 3.69 |
+| volume → log_return | 0/5 | — |
+| log_return → volume | 0/5 | — |
+| taker_buy_ratio → log_return | 0/5（校正后） | — |
+
+**核心发现**: 因果关系是**单向**的 — 波动率/收益率 Granger-cause 成交量和 taker_buy_ratio，反向不成立。这意味着成交量是价格波动的结果而非原因。
+
+![Granger p值热力图](output/causality/granger_pvalue_heatmap.png)
+
+![因果网络图](output/causality/granger_causal_network.png)
+
+### 7.3 跨时间尺度因果
+
+| 方向 | 显著滞后阶 |
+|------|----------|
+| hourly_intraday_vol → log_return | lag=10 显著 (Bonferroni) |
+| hourly_volume_sum → log_return | 不显著 |
+| hourly_max_abs_return → log_return | lag=10 边际显著 |
+
+小时级别日内波动率对日线收益率存在微弱的领先信号，但仅在 10 天滞后下显著。
+
+### 7.4 OBV 背离
+
+检测到 82 个价量背离信号（49 个顶背离 + 33 个底背离）。
+
+![OBV背离](output/volume_price/obv_divergence.png)
+
+---
+
+## 8. 日历效应
+
+### 8.1 星期效应
+
+| 星期 | 样本数 | 日均收益率 | 标准差 |
+|------|--------|----------|--------|
+| 周一 | 441 | +0.310% | 4.05% |
+| 周二 | 441 | -0.027% | 3.56% |
+| 周三 | 441 | +0.374% | 3.69% |
+| 周四 | 441 | -0.319% | 4.58% |
+| 周五 | 442 | +0.180% | 3.62% |
+| 周六 | 442 | +0.117% | 2.45% |
+| 周日 | 442 | +0.021% | 2.87% |
+
+**Kruskal-Wallis H 检验: H=8.24, p=0.221 → 不显著**
+
+Bonferroni 校正后的 21 对 Mann-Whitney U 两两比较均不显著。
+
+![星期效应](output/calendar/calendar_weekday_effect.png)
+
+### 8.2 月份效应
+
+**Kruskal-Wallis H 检验: H=6.12, p=0.865 → 不显著**
+
+10 月份均值收益率最高（+0.501%），8 月最低（-0.123%），但 66 对两两比较经 Bonferroni 校正后无一显著。
+
+![月份效应](output/calendar/calendar_month_effect.png)
+
+### 8.3 小时效应
+
+**收益率 Kruskal-Wallis: H=56.88, p=0.000107 → 显著**
+**成交量 Kruskal-Wallis: H=2601.9, p=0.000000 → 显著**
+
+日内小时效应在收益率和成交量上均显著存在。14:00 UTC 成交量最高（3,805 BTC），03:00-05:00 UTC 成交量最低（~1,980 BTC）。
+
+![小时效应](output/calendar/calendar_hour_effect.png)
+
+### 8.4 季度 & 月初月末效应
+
+| 检验 | 统计量 | p 值 | 结论 |
+|------|--------|------|------|
+| 季度 Kruskal-Wallis | 1.15 | 0.765 | 不显著 |
+| 月初 vs 月末 Mann-Whitney | 134,569 | 0.236 | 不显著 |
+
+![季度和月初月末效应](output/calendar/calendar_quarter_boundary_effect.png)
+
+### 日历效应总结
+
+| 效应类型 | 检验 p 值 | 结论 |
+|---------|----------|------|
+| 星期效应 | 0.221 | **不显著** |
+| 月份效应 | 0.865 | **不显著** |
+| 小时效应(收益率) | 0.000107 | **显著** |
+| 小时效应(成交量) | 0.000000 | **显著** |
+| 季度效应 | 0.765 | **不显著** |
+| 月初/月末 | 0.236 | **不显著** |
+
+仅日内小时效应在统计上显著。
+
+---
+
+## 9. 减半周期分析
+
+> ⚠️ **重要局限**: 仅覆盖 2 次减半事件（2020-05-11, 2024-04-20），统计功效极低。
+
+### 9.1 减半前后收益率对比
+
+| 周期 | 减半前500天均值 | 减半后500天均值 | Welch's t | p 值 |
+|------|-------------|-------------|-----------|------|
+| 第三次(2020) | +0.179%/天 | +0.331%/天 | -0.590 | 0.555 |
+| 第四次(2024) | +0.264%/天 | +0.108%/天 | 1.008 | 0.314 |
+| **合并** | +0.221%/天 | +0.220%/天 | 0.011 | **0.991** |
+
+合并后 p=0.991，减半前后收益率几乎完全无差异。
+
+### 9.2 波动率变化 (Levene 检验)
+
+| 周期 | 减半前年化波动率 | 减半后年化波动率 | Levene W | p 值 |
+|------|--------------|--------------|---------|------|
+| 第三次 | 82.72% | 73.13% | 0.608 | 0.436 |
+| 第四次 | 47.18% | 46.26% | 0.197 | 0.657 |
+
+波动率变化在两个周期中均**不显著**。
+
+### 9.3 累计收益率
+
+| 减半后天数 | 第三次(2020) | 第四次(2024) |
+|-----------|-------------|-------------|
+| 30天 | +13.32% | +11.95% |
+| 90天 | +33.92% | +4.45% |
+| 180天 | +69.88% | +5.65% |
+| 365天 | **+549.68%** | +33.47% |
+| 500天 | +414.35% | +74.31% |
+
+两次减半后的轨迹差异巨大（365天：550% vs 33%）。
+
+### 9.4 轨迹相关性
+
+| 时段 | Pearson r | p 值 |
+|------|-----------|------|
+| 全部 (1001天) | **0.808** | 0.000 |
+| 减半前 (500天) | 0.213 | 0.000002 |
+| 减半后 (500天) | **0.737** | 0.000 |
+
+两个周期的归一化价格轨迹高度相关（r=0.81），但仅 2 个样本无法做出因果推断。
+
+![归一化轨迹叠加](output/halving/halving_normalized_trajectories.png)
+
+![减半前后收益率](output/halving/halving_pre_post_returns.png)
+
+![累计收益率](output/halving/halving_cumulative_returns.png)
+
+![综合摘要](output/halving/halving_combined_summary.png)
+
+---
+
+## 10. 技术指标有效性验证
+
+对 21 个指标信号（8 种 MA/EMA 交叉 + 9 种 RSI + 3 种 MACD + 1 种布林带）进行严格统计验证。
+
+### 10.1 FDR 校正
+
+| 数据集 | 通过 FDR 校正的指标数 |
+|--------|-------------------|
+| 训练集 (1,871 bars) | **0 / 21** |
+| 验证集 (639 bars) | **0 / 21** |
+
+**所有 21 个技术指标经 Benjamini-Hochberg FDR 校正后均不显著。**
+
+### 10.2 置换检验 (Top-5 IC 指标)
+
+| 指标 | IC 差值 | 置换 p 值 | 结论 |
+|------|--------|----------|------|
+| RSI_14_30_70 | -0.005 | 0.566 | 不通过 |
+| RSI_14_25_75 | -0.030 | 0.015 | 通过 |
+| RSI_21_30_70 | -0.012 | 0.268 | 不通过 |
+| RSI_7_25_75 | -0.014 | 0.021 | 通过 |
+| RSI_21_20_80 | -0.025 | 0.303 | 不通过 |
+
+仅 2/5 通过置换检验，且 IC 值均极小（|IC| < 0.05），实际预测力可忽略。
+
+### 10.3 训练集 vs 验证集 IC 一致性
+
+Top-10 IC 中有 9/10 方向一致，1 个（SMA_20_100）发生方向翻转。但所有 IC 值均在 [-0.10, +0.05] 范围内，效果量极小。
+
+![IC分布-训练集](output/indicators/ic_distribution_train.png)
+
+![IC分布-验证集](output/indicators/ic_distribution_val.png)
+
+![p值热力图-训练集](output/indicators/pvalue_heatmap_train.png)
+
+---
+
+## 11. K线形态统计验证
+
+对 12 种手动实现的经典 K 线形态进行前瞻收益率分析。
+
+### 11.1 形态出现频率（训练集）
+
+| 形态 | 出现次数 | FDR 通过 |
+|------|---------|---------|
+| Doji | 219 | 否 |
+| Bullish_Engulfing | 159 | 否 |
+| Bearish_Engulfing | 149 | 否 |
+| Pin_Bar_Bull | 116 | 否 |
+| Pin_Bar_Bear | 57 | 否 |
+| Hammer | 49 | 否 |
+| Morning_Star | 23 | 否 |
+| Evening_Star | 20 | 否 |
+| Inverted_Hammer | 17 | 否 |
+| Three_White_Soldiers | 11 | 否 |
+| Shooting_Star | 6 | 否 |
+| Three_Black_Crows | 4 | 否 |
+
+**训练集 FDR 校正后 0/12 通过。**
+
+### 11.2 验证集结果
+
+验证集中 3 个形态通过 FDR 校正（Doji 53.1%、Pin_Bar_Bull 39.3%、Bullish_Engulfing 36.2%），但命中率接近或低于 50%（随机水平），缺乏实际交易价值。
+
+### 11.3 训练集 → 验证集稳定性
+
+| 形态 | 训练集命中率 | 验证集命中率 | 变化 | 评价 |
+|------|-----------|-----------|------|------|
+| Doji | 51.1% | 53.1% | +1.9% | 稳定 |
+| Hammer | 63.3% | 50.0% | -13.3% | 衰减 |
+| Pin_Bar_Bear | 57.9% | 60.0% | +2.1% | 稳定 |
+| Bullish_Engulfing | 50.9% | 36.2% | -14.7% | 衰减 |
+| Morning_Star | 56.5% | 40.0% | -16.5% | 衰减 |
+
+大部分形态的命中率在验证集上出现衰减，说明训练集中的表现可能是过拟合。
+
+![形态出现频率](output/patterns/pattern_counts_train.png)
+
+![形态前瞻收益率](output/patterns/pattern_forward_returns_train.png)
+
+![命中率分析](output/patterns/pattern_hit_rate_train.png)
+
+---
+
+## 12. 市场状态聚类
+
+### 12.1 K-Means (k=3, 轮廓系数=0.338)
+
+| 状态 | 占比 | 日均收益率 | 7d年化波动率 | 成交量比 |
+|------|------|----------|-----------|---------|
+| 横盘整理 | 73.6% | -0.010% | 46.5% | 0.896 |
+| 急剧下跌 | 11.8% | -5.636% | 95.2% | 1.452 |
+| 强势上涨 | 14.6% | +5.279% | 87.6% | 1.330 |
+
+### 12.2 马尔可夫转移概率矩阵
+
+|  | → 横盘 | → 暴跌 | → 暴涨 |
+|---|-------|-------|-------|
+| 横盘 | 0.820 | 0.077 | 0.103 |
+| 暴跌 | 0.452 | 0.230 | 0.319 |
+| 暴涨 | 0.546 | 0.230 | 0.224 |
+
+**平稳分布**: 横盘 73.6%、暴跌 11.8%、暴涨 14.6%
+
+**平均持有时间**: 横盘 5.55 天 / 暴跌 1.30 天 / 暴涨 1.29 天
+
+暴涨暴跌状态平均仅持续 1.3 天即回归横盘。暴跌后有 31.9% 概率转为暴涨（反弹）。
+
+![PCA聚类散点图](output/clustering/cluster_pca_k-means.png)
+
+![聚类特征热力图](output/clustering/cluster_heatmap_k-means.png)
+
+![转移概率矩阵](output/clustering/cluster_transition_matrix.png)
+
+![状态时间序列](output/clustering/cluster_state_timeseries.png)
+
+---
+
+## 13. 时序预测模型
+
+| 模型 | RMSE | RMSE/RW | 方向准确率 | DM p 值 |
+|------|------|---------|----------|--------|
+| Random Walk | 0.02532 | 1.000 | 0.0%* | — |
+| Historical Mean | 0.02527 | 0.998 | 49.9% | 0.152 |
+| ARIMA | 未完成** | — | — | — |
+| Prophet | 未安装 | — | — | — |
+| LSTM | 未安装 | — | — | — |
+
+\* Random Walk 预测收益=0，方向准确率定义为 0%
+\*\* ARIMA 因 numpy 二进制兼容性问题未能完成
+
+Historical Mean 的 RMSE/RW = 0.998，仅比随机游走好 0.2%，Diebold-Mariano 检验 p=0.152 **不显著**，本质上等同于随机游走。
+
+![预测对比](output/time_series/ts_predictions_comparison.png)
+
+![方向准确率](output/time_series/ts_direction_accuracy.png)
+
+---
+
+## 14. 异常检测与前兆模式
+
+### 14.1 集成异常检测
+
+| 方法 | 异常数 | 占比 |
+|------|--------|------|
+| Isolation Forest | 154 | 5.01% |
+| LOF | 154 | 5.01% |
+| COPOD | 154 | 5.01% |
+| **集成 (≥2/3)** | **142** | **4.62%** |
+| GARCH 残差异常 | 48 | 1.55% |
+| 集成 ∩ GARCH 重叠 | 41 | — |
+
+### 14.2 已知事件对齐（容差 5 天）
+
+| 事件 | 日期 | 是否对齐 | 最小偏差(天) |
+|------|------|---------|------------|
+| 2017年牛市顶点 | 2017-12-17 | ✓ | 1 |
+| 2018年熊市底部 | 2018-12-15 | ✓ | 5 |
+| 新冠黑色星期四 | 2020-03-12 | ✓ | **0** |
+| 第三次减半 | 2020-05-11 | ✓ | 1 |
+| Luna/3AC 暴跌 | 2022-06-18 | ✓ | **0** |
+| FTX 崩盘 | 2022-11-09 | ✓ | **0** |
+
+12 个已知事件中 6 个被成功对齐，其中 3 个精确到 0 天偏差。
+
+### 14.3 前兆分类器
+
+| 指标 | 值 |
+|------|-----|
+| 分类器 AUC | **0.9935** |
+| 样本数 | 3,053 (异常 134, 正常 2,919) |
+
+**Top-5 前兆特征（异常前 5~20 天的信号）**：
+
+| 特征 | 重要性 |
+|------|--------|
+| range_pct_max_5d | 0.0856 |
+| range_pct_std_5d | 0.0836 |
+| abs_return_std_5d | 0.0605 |
+| abs_return_max_5d | 0.0583 |
+| range_pct_deviation_20d | 0.0562 |
+
+异常事件前 5 天的价格波动幅度（range_pct）和绝对收益率的最大值/标准差是最强的前兆信号。
+
+> **注意**: AUC=0.99 部分反映了异常本身的聚集性（异常日前后也是异常的），不等于真正的"事前预测"能力。
+
+![异常标记图](output/anomaly/anomaly_price_chart.png)
+
+![特征分布对比](output/anomaly/anomaly_feature_distributions.png)
+
+![ROC曲线](output/anomaly/precursor_roc_curve.png)
+
+![特征重要性](output/anomaly/precursor_feature_importance.png)
+
+---
+
+## 15. 综合结论
+
+### 证据分级汇总
+
+#### ✅ 强证据（高度可重复，具有经济意义）
+
+| 规律 | 关键证据 | 可利用性 |
+|------|---------|---------|
+| 收益率厚尾分布 | KS/JB/AD p≈0，超额峰度=15.65，4σ事件87倍于正态 | 风控必须考虑 |
+| 波动率聚集 | GARCH persistence=0.973，绝对收益率ACF 88阶显著 | 可预测波动率 |
+| 波动率长记忆性 | 幂律衰减 d=0.635, p=5.8e-25 | FIGARCH建模 |
+| 单向因果：波动→成交量 | abs_return→volume F=55.19, Bonferroni校正后全显著 | 理解市场微观结构 |
+| 异常事件前兆 | AUC=0.9935，6/12已知事件精确对齐 | 波动率异常预警 |
+
+#### ⚠️ 中等证据（统计显著但效果有限）
+
+| 规律 | 关键证据 | 限制 |
+|------|---------|------|
+| 弱趋势性 | Hurst H=0.593, 98.9%窗口>0.55 | 效应量小(H仅略>0.5) |
+| 日内小时效应 | Kruskal-Wallis p=0.0001 | 仅限小时级别 |
+| FFT 39.6天周期 | SNR=6.36, 三框架确认 | 7天分量仅解释15%方差 |
+| 小波 ~300天周期 | 95% MC显著 | 功率/阈值比仅1.01-1.15x |
+
+#### ❌ 弱证据/不显著
+
+| 规律 | 关键证据 | 结论 |
+|------|---------|------|
+| 日历效应(星期/月份/季度) | Kruskal-Wallis p=0.22~0.87 | **不存在** |
+| 减半效应 | Welch's t p=0.55/0.31, 合并p=0.991 | **不显著**(仅2样本) |
+| 技术指标预测力 | 21个指标FDR校正后0通过，IC<0.05 | **不存在** |
+| K线形态超额收益 | 训练集FDR 0/12通过，验证集多数衰减 | **不存在** |
+| 分形维度偏离随机游走 | Z=-1.38, p=0.167 | **不显著** |
+| 时序模型超越随机游走 | RMSE/RW=0.998, DM p=0.152 | **不显著** |
+
+### 最终判断
+
+> **BTC 价格走势存在可测量的统计规律，但绝大多数不具备价格方向的预测可利用性。**
+>
+> 1. **波动率可预测，价格方向不可预测**。GARCH 效应、波动率聚集、长记忆性是确凿的市场特征，可用于风险管理和期权定价，但不能用于预测涨跌。
+>
+> 2. **市场效率的非对称性**。BTC 市场对价格水平（一阶矩）接近有效，但对波动率（二阶矩）远非有效 — 这与传统金融市场的"波动率可预测悖论"一致。
+>
+> 3. **流行的交易信号经不起严格检验**。21 个技术指标、12 种 K 线形态、日历效应、减半效应在 FDR/Bonferroni 校正后全部不显著或效果量极小。
+>
+> 4. **实际启示**：关注波动率管理而非方向预测；极端事件的风险评估应使用厚尾模型；异常检测可作为风控辅助工具。
+
+---
+
+---
+
+## 16. 基于分析数据的未来价格推演（2026-02 ~ 2028-02）
+
+> **重要免责声明**: 本章节是基于前述 15 章的统计分析结果所做的数据驱动推演，**不构成任何投资建议**。BTC 价格的方向准确率在统计上等同于随机游走（第 13 章），任何点位预测的精确性都是幻觉。以下推演的价值在于**量化不确定性的范围**，而非给出精确预测。
+
+### 16.1 推演方法论
+
+我们综合使用 6 个独立分析框架的量化输出，构建概率分布而非单一预测值：
+
+| 框架 | 数据来源 | 作用 |
+|------|---------|------|
+| 几何布朗运动 (GBM) | 日收益率 μ=0.0935%/天, σ=3.61%/天 (第 2 章) | 中性基准的概率锥 |
+| 幂律走廊外推 | α=0.770, R²=0.568 (第 6 章) | 长期结构性锚定区间 |
+| GARCH 波动率锥 | persistence=0.973 (第 3 章) | 动态波动率调整 |
+| 减半周期类比 | 第 3/4 次减半轨迹 r=0.81 (第 9 章) | 周期性参考（仅 2 样本） |
+| 马尔可夫状态模型 | 3 状态转移矩阵 (第 12 章) | 状态持续与切换概率 |
+| Hurst 趋势推断 | H=0.593, 周线 H=0.67 (第 5 章) | 趋势持续性修正 |
+
+### 16.2 当前市场状态诊断
+
+**基准价格**: $76,968（2026-02-01 收盘价）
+
+| 诊断维度 | 值 | 含义 |
+|---------|-----|------|
+| 幂律走廊分位 | 67.9% | 偏高但未极端（5%=$16,879, 95%=$119,340） |
+| 距第 4 次减半天数 | ~652 天 | 进入减半后期（第 3 次在 ~550 天见顶） |
+| 马尔可夫当前状态 | 横盘整理（73.6%概率） | 日均收益 -0.01%, 年化波动率 46.5% |
+| Hurst 最近窗口 | 0.549 ~ 0.654 | 弱趋势持续，未进入均值回归 |
+| GARCH 波动率持续性 | 0.973 | 当前波动率水平有强惯性 |
+
+### 16.3 框架一：GBM 概率锥（假设收益率独立同分布）
+
+基于日线对数收益率参数（μ=0.000935, σ=0.0361），在几何布朗运动假设下：
+
+**风险中性漂移修正**: E[ln(S_T/S_0)] = (μ - σ²/2) × T = 0.000283/天
+
+| 时间跨度 | 中位数预期 | -1σ (16%分位) | +1σ (84%分位) | -2σ (2.5%分位) | +2σ (97.5%分位) |
+|---------|-----------|-------------|-------------|-------------|---------------|
+| 6 个月 (183天) | $80,834 | $52,891 | $123,470 | $36,267 | $180,129 |
+| 1 年 (365天) | $85,347 | $42,823 | $170,171 | $21,502 | $338,947 |
+| 2 年 (730天) | $94,618 | $35,692 | $250,725 | $13,475 | $664,268 |
+
+> **关键修正**: 由于 BTC 收益率呈厚尾分布（超额峰度=15.65，4σ事件概率是正态的 87 倍），上述 GBM 模型**严重低估了尾部风险**。实际 2.5%/97.5% 分位数的范围应显著宽于上表。
+
+### 16.4 框架二：幂律走廊外推
+
+以当前幂律参数 α=0.770 外推走廊上下轨：
+
+| 时间点 | 5% 下轨 | 50% 中轨 | 95% 上轨 | 当前价格位置 |
+|--------|---------|---------|---------|-----------|
+| 2026-02（现在, day 3091） | $16,879 | $51,707 | $119,340 | $76,968 (67.9%) |
+| 2026-08（day 3274） | $17,647 | $54,060 | $124,773 | — |
+| 2027-02（day 3456） | $18,412 | $56,404 | $130,183 | — |
+| 2028-02（day 3821） | $19,861 | $60,839 | $140,423 | — |
+
+> **注意**: 幂律模型 R²=0.568 且 AIC 显示指数增长模型拟合更好（差值 493），因此幂律走廊仅做结构性参考，不应作为主要定价依据。走廊的年增速约 9%，远低于历史年化回报 34%。
+
+### 16.5 框架三：减半周期类比
+
+第 4 次减半（2024-04-20）已过约 652 天。以第 3 次减半为参照：
+
+| 事件 | 第 3 次（2020-05-11） | 第 4 次（2024-04-20） | 缩减比 |
+|------|-------|-------|--------|
+| 减半日价格 | ~$8,600 | ~$64,000 | — |
+| 365 天累计 | **+549.68%** | +33.47% | **0.061x** |
+| 500 天累计 | +414.35% | +74.31% | **0.179x** |
+| 周期峰值 | ~$69,000 (~550天) | **?** | — |
+| 轨迹相关性 | r = 0.808 (p < 0.001) | — | — |
+
+**推演**:
+- 如果按第 3 次减半的轨迹形态（r=0.81），但收益率大幅衰减（0.06x~0.18x 缩减比），第 4 次周期可能已经或接近峰值
+- 第 3 次减半在 ~550 天达到顶点后进入长期下跌（随后的 2022 年熊市），若类比成立，2026Q1-Q2 可能处于"周期后期"
+- **但仅 2 个样本的统计功效极低**（Welch's t 合并 p=0.991），不能依赖此推演
+
+### 16.6 框架四：马尔可夫状态模型推演
+
+基于 3 状态马尔可夫转移矩阵的条件概率预测：
+
+**当前状态假设为横盘整理**（73.6% 的日子处于此状态）：
+
+| 未来状态 | 1 天后概率 | 5 天后概率* | 30 天后概率* |
+|---------|-----------|-----------|------------|
+| 继续横盘 | 82.0% | ~51.3% | ≈平稳分布 73.6% |
+| 转入暴跌 | 7.7% | ~10.5% | ≈平稳分布 11.8% |
+| 转入暴涨 | 10.3% | ~13.4% | ≈平稳分布 14.6% |
+
+\* 多步概率通过转移矩阵幂次计算，约 15-20 步后收敛到平稳分布。
+
+**关键含义**:
+- 暴涨暴跌平均仅持续 1.3 天即回归横盘
+- 暴跌后有 31.9% 概率立即反弹为暴涨（"V 型反转"概率）
+- 长期来看，市场约 73.6% 的时间在横盘，约 14.6% 的时间在强势上涨，约 11.8% 的时间在急剧下跌
+- **暴涨与暴跌的概率不对称**：暴涨概率（14.6%）略高于暴跌（11.8%），与长期正漂移一致
+
+### 16.7 框架五：厚尾修正的概率分布
+
+标准 GBM 假设正态分布，但 BTC 的超额峰度=15.65。我们用历史尾部概率修正极端场景：
+
+| 场景 | 正态模型概率 | BTC 实际概率（历史） | 1 年内触发一次的概率 |
+|------|-----------|-----------------|------------------|
+| 单日 ≥ 3σ (+10.8%) | 0.135% | **0.776%** (5.75x) | ~94% |
+| 单日 ≤ -3σ (-10.8%) | 0.135% | **0.776%** (5.75x) | ~94% |
+| 单日 ≥ 4σ (+14.4%) | 0.003% | **0.275%** (86.9x) | ~63% |
+| 单日 ≤ -4σ (-14.4%) | 0.003% | **0.275%** (86.9x) | ~63% |
+| 单日 ≥ 5σ (+18.1%) | ~0.00003% | **估计 0.06%** | ~20% |
+| 单日 ≤ -5σ (-18.1%) | ~0.00003% | **估计 0.06%** | ~20% |
+
+在未来 1 年内，**几乎确定会出现至少一次单日 ±10% 的波动**，且有约 63% 的概率出现 ±14% 以上的极端日。
+
+### 16.8 综合情景推演
+
+综合上述 6 个框架，构建 5 个离散情景：
+
+#### 情景 A：持续牛市（概率 ~15%）
+
+| 指标 | 值 | 数据依据 |
+|------|-----|---------|
+| 1 年目标 | $130,000 ~ $200,000 | GBM +1σ 区间 + Hurst 趋势持续 |
+| 2 年目标 | $180,000 ~ $350,000 | GBM +1σ~+2σ，幂律上轨 $140K |
+| 触发条件 | 连续突破幂律 95% 上轨 ($119,340) | 历史上 2021 年曾发生 |
+| 概率依据 | 马尔可夫暴涨状态 14.6% × Hurst 趋势延续 98.9% | 但单次暴涨仅持续 1.3 天 |
+
+**数据支撑**: Hurst H=0.593 表明价格有弱趋势延续性，一旦进入上行通道可能持续。周线 H=0.67 暗示更长周期趋势性更强。但暴涨状态平均仅 1.3 天，需要连续多次暴涨才能实现。
+
+**数据矛盾**: ARIMA/历史均值模型均无法显著超越随机游走（RMSE/RW=0.998），方向预测准确率仅 49.9%。
+
+#### 情景 B：温和上涨（概率 ~25%）
+
+| 指标 | 值 | 数据依据 |
+|------|-----|---------|
+| 1 年目标 | $85,000 ~ $130,000 | GBM 中位数 $85K ~ +1σ $170K 之间 |
+| 2 年目标 | $95,000 ~ $180,000 | 幂律中轨上方，历史漂移率 |
+| 触发条件 | 维持在幂律 50%~95% 区间内 | 当前 67.9% 已在此区间 |
+| 概率依据 | 历史日均收益 +0.094% 的长期漂移 | 8.5 年数据支撑 |
+
+**数据支撑**: 日均正漂移 0.094% 在 8.5 年 3,091 天中持续存在。指数增长模型优于幂律（AIC 差 493），暗示增长速率可能不会减缓。
+
+#### 情景 C：横盘震荡（概率 ~30%）
+
+| 指标 | 值 | 数据依据 |
+|------|-----|---------|
+| 1 年区间 | $50,000 ~ $100,000 | 幂律走廊 50%-95% |
+| 2 年区间 | $45,000 ~ $110,000 | GBM ±0.5σ |
+| 触发条件 | 横盘状态延续（马尔可夫 82% 自我转移） | 最可能的单一状态 |
+| 概率依据 | 马尔可夫平稳分布 73.6% 横盘 | 市场多数时间在整理 |
+
+**数据支撑**: 横盘整理是最频繁的市场状态（73.6% 的日子），且自我转移概率高达 82%。当前年化波动率约 46.5%，与横盘状态特征一致。FFT 检测到的 ~39.6 天周期（SNR=6.36）暗示中短期存在围绕均值的振荡结构。
+
+#### 情景 D：温和下跌（概率 ~20%）
+
+| 指标 | 值 | 数据依据 |
+|------|-----|---------|
+| 1 年目标 | $40,000 ~ $65,000 | GBM -1σ ($43K) 附近 |
+| 2 年目标 | $35,000 ~ $55,000 | 回归幂律中轨 ($57K~$61K) |
+| 触发条件 | 减半周期后期回撤 | 第 3 次在 ~550天后转熊 |
+| 概率依据 | 幂律位置 67.9% → 回归 50% 中轨 | 均值回归力量 |
+
+**数据支撑**: 当前位于幂律走廊 67.9% 分位（偏高），统计上有回归中轨的倾向。第 3 次减半在峰值（~550 天）后经历了约 -75% 的回撤（$69K → $16K），第 4 次减半已过 652 天。
+
+#### 情景 E：黑天鹅暴跌（概率 ~10%）
+
+| 指标 | 值 | 数据依据 |
+|------|-----|---------|
+| 1 年最低 | $15,000 ~ $35,000 | GBM -2σ ($21.5K)，接近幂律 5% 下轨 |
+| 触发条件 | 系统性事件（如 2020 新冠、2022 FTX） | 异常检测 6/12 事件对齐 |
+| 概率依据 | 4σ事件年概率 63% × 持续下行 | 厚尾 87x 增强 |
+
+**数据支撑**: 历史上确实发生过 -75%（2022）、-84%（2018）的回撤。异常检测模型（AUC=0.9935）显示极端事件具有前兆特征（前 5 天波动幅度和绝对收益率标准差异常升高），但不等于可精确预测时间点。
+
+### 16.9 概率加权预期
+
+| 情景 | 概率 | 1 年中点 | 2 年中点 |
+|------|------|---------|---------|
+| A 持续牛市 | 15% | $165,000 | $265,000 |
+| B 温和上涨 | 25% | $107,500 | $137,500 |
+| C 横盘震荡 | 30% | $75,000 | $77,500 |
+| D 温和下跌 | 20% | $52,500 | $45,000 |
+| E 黑天鹅 | 10% | $25,000 | $25,000 |
+| **概率加权** | **100%** | **$87,750** | **$107,875** |
+
+概率加权后的 1 年预期价格约 $87,750（+14%），2 年预期约 $107,875（+40%），与历史日均正漂移的累积效应（1 年 +34%）在同一量级。
+
+### 16.10 推演的核心局限性
+
+1. **方向不可预测**: 本报告第 13 章已证明，所有时序模型均无法显著超越随机游走（DM 检验 p=0.152），方向预测准确率仅 49.9%
+2. **周期样本不足**: 减半效应仅基于 2 个样本（合并 p=0.991），统计功效极低
+3. **结构性变化**: 2017-2026 年期间 BTC 的市场结构（机构化、ETF、监管）发生了根本性变化，历史参数可能不适用于未来
+4. **外生冲击不可建模**: 监管政策、宏观经济、地缘政治等外生因素对 BTC 价格有重大影响，但无法从历史价格数据中推断
+5. **波动率可预测，方向不可预测**: 本分析的核心发现是 GARCH persistence=0.973 和波动率长记忆性（d=0.635），意味着我们能较准确预测"波动有多大"，但无法预测"方向是什么"
+6. **厚尾风险**: 正态假设下的置信区间**严重低估**极端场景概率，BTC 的 4σ 事件是正态的 87 倍
+
+> **最诚实的结论**: 如果你必须对 BTC 未来 1-2 年做出判断，唯一有统计证据支持的陈述是：
+> 1. **波动率会很大**（年化 ~60%，即 1 年内 ±60% 波动属于"正常"范围）
+> 2. **极端日几乎确定会出现**（年内 ±10% 单日波动概率 >90%）
+> 3. **长期存在微弱的正漂移**（日均 +0.094%，但单日标准差 3.61% 是漂移的 39 倍）
+> 4. **任何精确的价格预测都没有统计学基础**
+
+---
+
+*报告生成日期: 2026-02-03 | 分析代码: [src/](src/) | 图表输出: [output/](output/)*
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..86e17e2
--- /dev/null
+++ b/main.py
@@ -0,0 +1,219 @@
+#!/usr/bin/env python3
+"""BTC/USDT 价格规律性全面分析 — 主入口
+
+串联执行所有分析模块，输出结果到 output/ 目录。
+每个模块独立运行，单个模块失败不影响其他模块。
+
+用法:
+    python3 main.py              # 运行全部模块
+    python3 main.py --modules fft wavelet  # 只运行指定模块
+    python3 main.py --list       # 列出所有可用模块
+"""
+
+import sys
+import time
+import argparse
+import traceback
+from pathlib import Path
+from collections import OrderedDict
+
+# 确保 src 在路径中
+ROOT = Path(__file__).parent
+sys.path.insert(0, str(ROOT))
+
+from src.data_loader import load_klines, load_daily, load_hourly, validate_data
+from src.preprocessing import add_derived_features
+
+
+# ── 模块注册表 ─────────────────────────────────────────────
+
+def _import_module(name):
+    """延迟导入分析模块，避免启动时全部加载"""
+    import importlib
+    return importlib.import_module(f"src.{name}")
+
+
+# (模块key, 显示名称, 源模块名, 入口函数名, 是否需要hourly数据)
+MODULE_REGISTRY = OrderedDict([
+    ("fft",          ("FFT频谱分析",           "fft_analysis",          "run_fft_analysis",          False)),
+    ("wavelet",      ("小波变换分析",           "wavelet_analysis",      "run_wavelet_analysis",      False)),
+    ("acf",          ("ACF/PACF分析",          "acf_analysis",          "run_acf_analysis",          False)),
+    ("returns",      ("收益率分布分析",          "returns_analysis",      "run_returns_analysis",      False)),
+    ("volatility",   ("波动率聚集分析",          "volatility_analysis",   "run_volatility_analysis",   False)),
+    ("hurst",        ("Hurst指数分析",          "hurst_analysis",        "run_hurst_analysis",        False)),
+    ("fractal",      ("分形维度分析",            "fractal_analysis",      "run_fractal_analysis",      False)),
+    ("power_law",    ("幂律增长分析",            "power_law_analysis",    "run_power_law_analysis",    False)),
+    ("volume_price", ("量价关系分析",            "volume_price_analysis", "run_volume_price_analysis", False)),
+    ("calendar",     ("日历效应分析",            "calendar_analysis",     "run_calendar_analysis",     True)),
+    ("halving",      ("减半周期分析",            "halving_analysis",      "run_halving_analysis",      False)),
+    ("indicators",   ("技术指标验证",            "indicators",            "run_indicators_analysis",   False)),
+    ("patterns",     ("K线形态分析",             "patterns",              "run_patterns_analysis",     False)),
+    ("clustering",   ("市场状态聚类",            "clustering",            "run_clustering_analysis",   False)),
+    ("time_series",  ("时序预测",               "time_series",           "run_time_series_analysis",  False)),
+    ("causality",    ("因果检验",               "causality",             "run_causality_analysis",    False)),
+    ("anomaly",      ("异常检测",               "anomaly",               "run_anomaly_analysis",      False)),
+])
+
+
+OUTPUT_DIR = ROOT / "output"
+
+
+def run_single_module(key, df, df_hourly, output_base):
+    """
+    运行单个分析模块
+
+    Returns
+    -------
+    dict or None
+        模块返回的结果字典，失败返回 None
+    """
+    display_name, mod_name, func_name, needs_hourly = MODULE_REGISTRY[key]
+    module_output = str(output_base / key)
+    Path(module_output).mkdir(parents=True, exist_ok=True)
+
+    print(f"\n{'='*60}")
+    print(f"  [{key}] {display_name}")
+    print(f"{'='*60}")
+
+    try:
+        mod = _import_module(mod_name)
+        func = getattr(mod, func_name)
+
+        if needs_hourly:
+            result = func(df, df_hourly, module_output)
+        else:
+            result = func(df, module_output)
+
+        if result is None:
+            result = {"status": "completed", "findings": []}
+
+        result["status"] = "success"
+        print(f"  [{key}] 完成 ✓")
+        return result
+
+    except Exception as e:
+        print(f"  [{key}] 失败 ✗: {e}")
+        traceback.print_exc()
+        return {"status": "error", "error": str(e), "findings": []}
+
+
+def main():
+    parser = argparse.ArgumentParser(description="BTC/USDT 价格规律性全面分析")
+    parser.add_argument("--modules", nargs="*", default=None,
+                        help="指定要运行的模块 (默认运行全部)")
+    parser.add_argument("--list", action="store_true",
+                        help="列出所有可用模块")
+    parser.add_argument("--start", type=str, default=None,
+                        help="数据起始日期, 如 2020-01-01")
+    parser.add_argument("--end", type=str, default=None,
+                        help="数据结束日期, 如 2025-12-31")
+    args = parser.parse_args()
+
+    if args.list:
+        print("\n可用分析模块:")
+        print("-" * 50)
+        for key, (name, _, _, _) in MODULE_REGISTRY.items():
+            print(f"  {key:<15} {name}")
+        print()
+        return
+
+    # ── 1. 加载数据 ──────────────────────────────────────
+    print("=" * 60)
+    print("  BTC/USDT 价格规律性全面分析")
+    print("=" * 60)
+
+    print("\n[1/3] 加载日线数据...")
+    df_daily = load_daily(start=args.start, end=args.end)
+    report = validate_data(df_daily, "1d")
+    print(f"  行数: {report['rows']}")
+    print(f"  日期范围: {report['date_range']}")
+    print(f"  价格范围: {report['price_range']}")
+
+    print("\n[2/3] 添加衍生特征...")
+    df = add_derived_features(df_daily)
+    print(f"  特征列: {list(df.columns)}")
+
+    print("\n[3/3] 加载小时数据 (日历效应需要)...")
+    try:
+        df_hourly_raw = load_hourly(start=args.start, end=args.end)
+        df_hourly = add_derived_features(df_hourly_raw)
+        print(f"  小时数据行数: {len(df_hourly)}")
+    except Exception as e:
+        print(f"  小时数据加载失败 (日历效应小时分析将跳过): {e}")
+        df_hourly = None
+
+    # ── 2. 确定要运行的模块 ──────────────────────────────
+    if args.modules:
+        modules_to_run = []
+        for m in args.modules:
+            if m in MODULE_REGISTRY:
+                modules_to_run.append(m)
+            else:
+                print(f"  警告: 未知模块 '{m}', 跳过")
+    else:
+        modules_to_run = list(MODULE_REGISTRY.keys())
+
+    print(f"\n将运行 {len(modules_to_run)} 个分析模块:")
+    for m in modules_to_run:
+        print(f"  - {m}: {MODULE_REGISTRY[m][0]}")
+
+    # ── 3. 逐一运行模块 ─────────────────────────────────
+    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
+    all_results = {}
+    timings = {}
+
+    for key in modules_to_run:
+        t0 = time.time()
+        result = run_single_module(key, df, df_hourly, OUTPUT_DIR)
+        elapsed = time.time() - t0
+        timings[key] = elapsed
+        if result is not None:
+            all_results[key] = result
+        print(f"  耗时: {elapsed:.1f}s")
+
+    # ── 4. 生成综合报告 ──────────────────────────────────
+    print(f"\n{'='*60}")
+    print("  生成综合分析报告")
+    print(f"{'='*60}")
+
+    from src.visualization import generate_summary_dashboard, plot_price_overview
+
+    # 价格概览图
+    plot_price_overview(df_daily, str(OUTPUT_DIR))
+
+    # 综合仪表盘
+    dashboard_result = generate_summary_dashboard(all_results, str(OUTPUT_DIR))
+
+    # ── 5. 打印执行摘要 ──────────────────────────────────
+    print(f"\n{'='*60}")
+    print("  执行摘要")
+    print(f"{'='*60}")
+
+    success = sum(1 for r in all_results.values() if r.get("status") == "success")
+    failed = sum(1 for r in all_results.values() if r.get("status") == "error")
+    total_time = sum(timings.values())
+
+    print(f"\n  模块总数: {len(modules_to_run)}")
+    print(f"  成功: {success}")
+    print(f"  失败: {failed}")
+    print(f"  总耗时: {total_time:.1f}s")
+
+    print(f"\n  各模块耗时:")
+    for key, t in sorted(timings.items(), key=lambda x: -x[1]):
+        status = all_results.get(key, {}).get("status", "unknown")
+        mark = "✓" if status == "success" else "✗"
+        print(f"    {mark} {key:<15} {t:>8.1f}s")
+
+    print(f"\n  输出目录: {OUTPUT_DIR.resolve()}")
+    if dashboard_result:
+        print(f"  综合报告: {dashboard_result.get('report_path', 'N/A')}")
+        print(f"  仪表盘图: {dashboard_result.get('dashboard_path', 'N/A')}")
+        print(f"  JSON结果: {dashboard_result.get('json_path', 'N/A')}")
+
+    print(f"\n{'='*60}")
+    print("  分析完成!")
+    print(f"{'='*60}\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/output/acf/acf_grid.png b/output/acf/acf_grid.png
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diff --git a/output/acf/pacf_grid.png b/output/acf/pacf_grid.png
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diff --git a/output/acf/significant_lags_heatmap.png b/output/acf/significant_lags_heatmap.png
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diff --git a/output/all_results.json b/output/all_results.json
new file mode 100644
index 0000000..cf32c07
--- /dev/null
+++ b/output/all_results.json
@@ -0,0 +1,44 @@
+{
+  "indicators": {
+    "train_results": "              n_buy  n_sell  ...  ic_rejected  any_fdr_pass\nindicator                    ...                           \nSMA_5_20       47.0    48.0  ...        False         False\nEMA_5_20       53.0    54.0  ...        False         False\nSMA_10_50      21.0    22.0  ...        False         False\nEMA_10_50      19.0    20.0  ...        False         False\nSMA_20_100      7.0     8.0  ...        False         False\nEMA_20_100      9.0    10.0  ...        False         False\nSMA_50_200      4.0     5.0  ...        False         False\nEMA_50_200      6.0     7.0  ...        False         False\nRSI_7_30_70    66.0    78.0  ...        False         False\nRSI_7_25_75    48.0    62.0  ...        False         False\nRSI_7_20_80    21.0    41.0  ...        False         False\nRSI_14_30_70   24.0    47.0  ...        False         False\nRSI_14_25_75   15.0    27.0  ...        False         False\nRSI_14_20_80    4.0    17.0  ...        False         False\nRSI_21_30_70   14.0    29.0  ...        False         False\nRSI_21_25_75    4.0    16.0  ...        False         False\nRSI_21_20_80    2.0    11.0  ...        False         False\nMACD_12_26_9   65.0    65.0  ...        False         False\nMACD_8_17_9    92.0    92.0  ...        False         False\nMACD_5_35_5   123.0   123.0  ...        False         False\nBB_20_2        39.0    59.0  ...        False         False\n\n[21 rows x 23 columns]",
+    "val_results": "              n_buy  n_sell  ...  ic_rejected  any_fdr_pass\nindicator                    ...                           \nSMA_5_20       21.0    21.0  ...        False         False\nEMA_5_20       17.0    17.0  ...        False         False\nSMA_10_50       7.0     7.0  ...        False         False\nEMA_10_50       8.0     8.0  ...        False         False\nSMA_20_100      4.0     4.0  ...        False         False\nEMA_20_100      3.0     3.0  ...        False         False\nSMA_50_200      2.0     1.0  ...        False         False\nEMA_50_200      2.0     1.0  ...        False         False\nRSI_7_30_70    16.0    27.0  ...        False         False\nRSI_7_25_75     9.0    16.0  ...        False         False\nRSI_7_20_80     4.0    17.0  ...        False         False\nRSI_14_30_70    4.0    17.0  ...        False         False\nRSI_14_25_75    3.0     6.0  ...        False         False\nRSI_14_20_80    1.0     7.0  ...        False         False\nRSI_21_30_70    1.0     7.0  ...        False         False\nRSI_21_25_75    0.0     9.0  ...        False         False\nRSI_21_20_80    0.0     7.0  ...        False         False\nMACD_12_26_9   22.0    23.0  ...        False         False\nMACD_8_17_9    28.0    29.0  ...        False         False\nMACD_5_35_5    42.0    43.0  ...        False         False\nBB_20_2        12.0    26.0  ...        False         False\n\n[21 rows x 23 columns]",
+    "fdr_passed_train": [],
+    "fdr_passed_val": [],
+    "permutation_results": {
+      "RSI_14_30_70": {
+        "observed_diff": -0.004977440100087348,
+        "perm_pval": 0.5664335664335665
+      },
+      "RSI_14_25_75": {
+        "observed_diff": -0.03017610738336842,
+        "perm_pval": 0.014985014985014986
+      },
+      "RSI_21_30_70": {
+        "observed_diff": -0.012247499113796413,
+        "perm_pval": 0.2677322677322677
+      },
+      "RSI_7_25_75": {
+        "observed_diff": -0.014302431427126703,
+        "perm_pval": 0.02097902097902098
+      },
+      "RSI_21_20_80": {
+        "observed_diff": -0.0252918754365221,
+        "perm_pval": 0.3026973026973027
+      }
+    },
+    "all_signals": "{'SMA_5_20': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'EMA_5_20': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'SMA_10_50': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'EMA_10_50': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'SMA_20_100': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'EMA_20_100': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'SMA_50_200': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'EMA_50_200': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_7_30_70': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_7_25_75': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_7_20_80': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_14_30_70': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_14_25_75': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_14_20_80': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_21_30_70': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_21_25_75': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'RSI_21_20_80': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'MACD_12_26_9': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'MACD_8_17_9': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'MACD_5_35_5': datetime\n2017-08-17    0\n2017-08-18   -1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'BB_20_2': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64}",
+    "status": "success"
+  },
+  "patterns": {
+    "train_results": "                      n_occurrences  ...  any_fdr_pass\npattern                              ...              \nDoji                          219.0  ...         False\nHammer                         49.0  ...         False\nInverted_Hammer                17.0  ...         False\nShooting_Star                   6.0  ...         False\nPin_Bar_Bull                  116.0  ...         False\nPin_Bar_Bear                   57.0  ...         False\nBullish_Engulfing             159.0  ...         False\nBearish_Engulfing             149.0  ...         False\nMorning_Star                   23.0  ...         False\nEvening_Star                   20.0  ...         False\nThree_White_Soldiers           11.0  ...         False\nThree_Black_Crows               4.0  ...         False\n\n[12 rows x 41 columns]",
+    "val_results": "                      n_occurrences  ...  any_fdr_pass\npattern                              ...              \nDoji                           81.0  ...          True\nHammer                         12.0  ...         False\nInverted_Hammer                 6.0  ...         False\nShooting_Star                   3.0  ...         False\nPin_Bar_Bull                   28.0  ...          True\nPin_Bar_Bear                   20.0  ...         False\nBullish_Engulfing              69.0  ...          True\nBearish_Engulfing              47.0  ...         False\nMorning_Star                    5.0  ...         False\nEvening_Star                    6.0  ...         False\nThree_White_Soldiers            4.0  ...         False\nThree_Black_Crows               0.0  ...         False\n\n[12 rows x 41 columns]",
+    "fdr_passed_train": [],
+    "fdr_passed_val": [
+      "Doji",
+      "Pin_Bar_Bull",
+      "Bullish_Engulfing"
+    ],
+    "all_patterns": "{'Doji': datetime\n2017-08-17    1\n2017-08-18    0\n2017-08-19    1\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    1\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Hammer': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    1\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Inverted_Hammer': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Shooting_Star': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Pin_Bar_Bull': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    1\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    1\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Pin_Bar_Bear': datetime\n2017-08-17    1\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    1\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Bullish_Engulfing': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Bearish_Engulfing': datetime\n2017-08-17    0\n2017-08-18    1\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    1\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Morning_Star': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Evening_Star': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    1\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Three_White_Soldiers': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64, 'Three_Black_Crows': datetime\n2017-08-17    0\n2017-08-18    0\n2017-08-19    0\n2017-08-20    0\n2017-08-21    0\n             ..\n2026-01-28    0\n2026-01-29    0\n2026-01-30    0\n2026-01-31    0\n2026-02-01    0\nLength: 3091, dtype: int64}",
+    "status": "success"
+  }
+}
\ No newline at end of file
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diff --git a/output/综合结论报告.txt b/output/综合结论报告.txt
new file mode 100644
index 0000000..fa84500
--- /dev/null
+++ b/output/综合结论报告.txt
@@ -0,0 +1,35 @@
+======================================================================
+BTC/USDT 价格规律性分析 — 综合结论报告
+======================================================================
+
+
+"真正有规律" 判定标准（必须同时满足）：
+  1. FDR校正后 p < 0.05
+  2. 排列检验 p < 0.01（如适用）
+  3. 测试集上效果方向一致且显著
+  4. >80% bootstrap子样本中成立（如适用）
+  5. Cohen's d > 0.2 或经济意义显著
+  6. 有合理的经济/市场直觉解释
+
+
+----------------------------------------------------------------------
+模块                                 得分         强度      发现数
+----------------------------------------------------------------------
+indicators                       0.00       none        0
+patterns                         0.00       none        0
+----------------------------------------------------------------------
+
+## 强证据规律（可重复、有经济意义）:
+  （无）
+
+## 中等证据规律（统计显著但效果有限）:
+  （无）
+
+## 弱证据/不显著:
+  * indicators
+  * patterns
+
+======================================================================
+注: 得分基于各模块自报告的统计检验结果。
+    具体参数和图表请参见各子目录的输出。
+======================================================================
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..d481281
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,17 @@
+pandas>=2.0
+numpy>=1.24
+scipy>=1.11
+matplotlib>=3.7
+seaborn>=0.12
+statsmodels>=0.14
+PyWavelets>=1.4
+arch>=6.0
+scikit-learn>=1.3
+# pandas-ta 已移除，技术指标在 indicators.py 中手动实现
+hdbscan>=0.8
+nolds>=0.5.2
+prophet>=1.1
+torch>=2.0
+pyod>=1.1
+plotly>=5.15
+pmdarima>=2.0
diff --git a/src/__init__.py b/src/__init__.py
new file mode 100644
index 0000000..f90ee24
--- /dev/null
+++ b/src/__init__.py
@@ -0,0 +1 @@
+# BTC/USDT Price Analysis Package
diff --git a/src/acf_analysis.py b/src/acf_analysis.py
new file mode 100644
index 0000000..af06b6a
--- /dev/null
+++ b/src/acf_analysis.py
@@ -0,0 +1,758 @@
+"""ACF/PACF 自相关分析模块
+
+对BTC日线数据的多序列（对数收益率、平方收益率、绝对收益率、成交量）进行
+自相关函数(ACF)、偏自相关函数(PACF)分析，自动检测显著滞后阶与周期性模式，
+并执行 Ljung-Box 检验以验证序列依赖结构。
+"""
+
+import numpy as np
+import pandas as pd
+import matplotlib
+matplotlib.use('Agg')
+import matplotlib.pyplot as plt
+from statsmodels.tsa.stattools import acf, pacf
+from statsmodels.stats.diagnostic import acorr_ljungbox
+from pathlib import Path
+from typing import Dict, List, Tuple, Optional, Any, Union
+
+
+# ============================================================
+# 常量配置
+# ============================================================
+
+# ACF/PACF 最大滞后阶数
+ACF_MAX_LAGS = 100
+PACF_MAX_LAGS = 40
+
+# Ljung-Box 检验的滞后组
+LJUNGBOX_LAG_GROUPS = [10, 20, 50, 100]
+
+# 显著性水平对应的 z 值（双侧 5%）
+Z_CRITICAL = 1.96
+
+# 分析目标序列名称 -> 列名映射
+SERIES_CONFIG = {
+    "log_return": {
+        "column": "log_return",
+        "label": "对数收益率 (Log Return)",
+        "purpose": "检测线性序列相关性",
+    },
+    "squared_return": {
+        "column": "squared_return",
+        "label": "平方收益率 (Squared Return)",
+        "purpose": "检测波动聚集效应 / ARCH效应",
+    },
+    "abs_return": {
+        "column": "abs_return",
+        "label": "绝对收益率 (Absolute Return)",
+        "purpose": "非线性依赖关系的稳健性检验",
+    },
+    "volume": {
+        "column": "volume",
+        "label": "成交量 (Volume)",
+        "purpose": "检测成交量自相关性",
+    },
+}
+
+
+# ============================================================
+# 核心计算函数
+# ============================================================
+
+def compute_acf(series: pd.Series, nlags: int = ACF_MAX_LAGS) -> Tuple[np.ndarray, np.ndarray]:
+    """
+    计算自相关函数及置信区间
+
+    Parameters
+    ----------
+    series : pd.Series
+        输入时间序列（已去除NaN）
+    nlags : int
+        最大滞后阶数
+
+    Returns
+    -------
+    acf_values : np.ndarray
+        ACF 值数组，shape=(nlags+1,)
+    confint : np.ndarray
+        置信区间数组，shape=(nlags+1, 2)
+    """
+    clean = series.dropna().values
+    # alpha=0.05 对应 95% 置信区间
+    acf_values, confint = acf(clean, nlags=nlags, alpha=0.05, fft=True)
+    return acf_values, confint
+
+
+def compute_pacf(series: pd.Series, nlags: int = PACF_MAX_LAGS) -> Tuple[np.ndarray, np.ndarray]:
+    """
+    计算偏自相关函数及置信区间
+
+    Parameters
+    ----------
+    series : pd.Series
+        输入时间序列（已去除NaN）
+    nlags : int
+        最大滞后阶数
+
+    Returns
+    -------
+    pacf_values : np.ndarray
+        PACF 值数组
+    confint : np.ndarray
+        置信区间数组
+    """
+    clean = series.dropna().values
+    # 确保 nlags 不超过样本量的一半
+    max_allowed = len(clean) // 2 - 1
+    nlags = min(nlags, max_allowed)
+    pacf_values, confint = pacf(clean, nlags=nlags, alpha=0.05, method='ywm')
+    return pacf_values, confint
+
+
+def find_significant_lags(
+    acf_values: np.ndarray,
+    n_obs: int,
+    start_lag: int = 1,
+) -> List[int]:
+    """
+    识别超过 ±1.96/√N 置信带的显著滞后阶
+
+    Parameters
+    ----------
+    acf_values : np.ndarray
+        ACF 值数组（包含 lag 0）
+    n_obs : int
+        样本总数（用于计算 Bartlett 置信带宽度）
+    start_lag : int
+        从哪个滞后阶开始检测（默认跳过 lag 0）
+
+    Returns
+    -------
+    significant : list of int
+        显著的滞后阶列表
+    """
+    threshold = Z_CRITICAL / np.sqrt(n_obs)
+    significant = []
+    for lag in range(start_lag, len(acf_values)):
+        if abs(acf_values[lag]) > threshold:
+            significant.append(lag)
+    return significant
+
+
+def detect_periodic_pattern(
+    significant_lags: List[int],
+    min_period: int = 2,
+    max_period: int = 50,
+    min_occurrences: int = 3,
+    tolerance: int = 1,
+) -> List[Dict[str, Any]]:
+    """
+    检测显著滞后阶中的周期性模式
+
+    算法：对每个候选周期 p，检查 p, 2p, 3p, ... 是否在显著滞后阶集合中
+    （允许 ±tolerance 偏差），若命中次数 >= min_occurrences 则认为存在周期。
+
+    Parameters
+    ----------
+    significant_lags : list of int
+        显著滞后阶列表
+    min_period : int
+        最小候选周期
+    max_period : int
+        最大候选周期
+    min_occurrences : int
+        最少需要出现的周期倍数次数
+    tolerance : int
+        允许的滞后偏差（天数）
+
+    Returns
+    -------
+    patterns : list of dict
+        检测到的周期性模式列表，每个元素包含：
+        - period: 周期长度
+        - hits: 命中的滞后阶列表
+        - count: 命中次数
+        - fft_note: FFT 交叉验证说明
+    """
+    if not significant_lags:
+        return []
+
+    sig_set = set(significant_lags)
+    max_lag = max(significant_lags)
+    patterns = []
+
+    for period in range(min_period, min(max_period + 1, max_lag + 1)):
+        hits = []
+        # 检查周期的整数倍是否出现在显著滞后阶中
+        multiple = 1
+        while period * multiple <= max_lag + tolerance:
+            target = period * multiple
+            # 在 ±tolerance 范围内查找匹配
+            for offset in range(-tolerance, tolerance + 1):
+                if (target + offset) in sig_set:
+                    hits.append(target + offset)
+                    break
+            multiple += 1
+
+        if len(hits) >= min_occurrences:
+            # FFT 交叉验证说明：周期 p 天对应频率 1/p
+            fft_freq = 1.0 / period
+            patterns.append({
+                "period": period,
+                "hits": hits,
+                "count": len(hits),
+                "fft_note": (
+                    f"若FFT频谱在 f={fft_freq:.4f} (1/{period}天) "
+                    f"处存在峰值，则交叉验证通过"
+                ),
+            })
+
+    # 按命中次数降序排列，去除被更短周期包含的冗余模式
+    patterns.sort(key=lambda x: (-x["count"], x["period"]))
+    filtered = _filter_harmonic_patterns(patterns)
+
+    return filtered
+
+
+def _filter_harmonic_patterns(
+    patterns: List[Dict[str, Any]],
+) -> List[Dict[str, Any]]:
+    """
+    过滤谐波冗余的周期模式
+
+    如果周期 A 是周期 B 的整数倍且命中数不明显更多，则保留较短周期。
+    """
+    if len(patterns) <= 1:
+        return patterns
+
+    kept = []
+    periods_kept = set()
+
+    for pat in patterns:
+        p = pat["period"]
+        # 检查是否为已保留周期的整数倍
+        is_harmonic = False
+        for kp in periods_kept:
+            if p % kp == 0 and p != kp:
+                is_harmonic = True
+                break
+        if not is_harmonic:
+            kept.append(pat)
+            periods_kept.add(p)
+
+    return kept
+
+
+def run_ljungbox_test(
+    series: pd.Series,
+    lag_groups: List[int] = None,
+) -> pd.DataFrame:
+    """
+    对序列执行 Ljung-Box 白噪声检验
+
+    Parameters
+    ----------
+    series : pd.Series
+        输入时间序列
+    lag_groups : list of int
+        检验的滞后阶组
+
+    Returns
+    -------
+    results : pd.DataFrame
+        包含 lag, lb_stat, lb_pvalue 的结果表
+    """
+    if lag_groups is None:
+        lag_groups = LJUNGBOX_LAG_GROUPS
+
+    clean = series.dropna()
+    max_lag = max(lag_groups)
+
+    # 确保最大滞后不超过样本量
+    if max_lag >= len(clean):
+        lag_groups = [lg for lg in lag_groups if lg < len(clean)]
+        if not lag_groups:
+            return pd.DataFrame(columns=["lag", "lb_stat", "lb_pvalue"])
+        max_lag = max(lag_groups)
+
+    lb_result = acorr_ljungbox(clean, lags=max_lag, return_df=True)
+
+    rows = []
+    for lg in lag_groups:
+        if lg <= len(lb_result):
+            rows.append({
+                "lag": lg,
+                "lb_stat": lb_result.loc[lg, "lb_stat"],
+                "lb_pvalue": lb_result.loc[lg, "lb_pvalue"],
+            })
+
+    return pd.DataFrame(rows)
+
+
+# ============================================================
+# 可视化函数
+# ============================================================
+
+def _plot_acf_grid(
+    acf_data: Dict[str, Tuple[np.ndarray, np.ndarray, int, List[int]]],
+    output_path: Path,
+) -> None:
+    """
+    绘制 2x2 ACF 图
+
+    Parameters
+    ----------
+    acf_data : dict
+        键为序列名称，值为 (acf_values, confint, n_obs, significant_lags) 元组
+    output_path : Path
+        输出文件路径
+    """
+    fig, axes = plt.subplots(2, 2, figsize=(16, 12))
+    fig.suptitle("BTC 自相关函数 (ACF) 分析", fontsize=16, fontweight='bold', y=0.98)
+
+    series_keys = list(SERIES_CONFIG.keys())
+
+    for idx, key in enumerate(series_keys):
+        ax = axes[idx // 2, idx % 2]
+
+        if key not in acf_data:
+            ax.set_visible(False)
+            continue
+
+        acf_vals, confint, n_obs, sig_lags = acf_data[key]
+        config = SERIES_CONFIG[key]
+        lags = np.arange(len(acf_vals))
+        threshold = Z_CRITICAL / np.sqrt(n_obs)
+
+        # 绘制 ACF 柱状图
+        colors = []
+        for lag in lags:
+            if lag == 0:
+                colors.append('#2196F3')  # lag 0 用蓝色
+            elif lag in sig_lags:
+                colors.append('#F44336')  # 显著滞后用红色
+            else:
+                colors.append('#90CAF9')  # 非显著用浅蓝
+
+        ax.bar(lags, acf_vals, color=colors, width=0.8, alpha=0.85)
+
+        # 绘制置信带
+        ax.axhline(y=threshold, color='#E91E63', linestyle='--',
+                    linewidth=1.2, alpha=0.7, label=f'±{Z_CRITICAL}/√N = ±{threshold:.4f}')
+        ax.axhline(y=-threshold, color='#E91E63', linestyle='--',
+                    linewidth=1.2, alpha=0.7)
+        ax.axhline(y=0, color='black', linewidth=0.5)
+
+        # 标注显著滞后阶（仅标注前10个避免拥挤）
+        sig_lags_sorted = sorted(sig_lags)[:10]
+        for lag in sig_lags_sorted:
+            if lag < len(acf_vals):
+                ax.annotate(
+                    f'{lag}',
+                    xy=(lag, acf_vals[lag]),
+                    xytext=(0, 8 if acf_vals[lag] > 0 else -12),
+                    textcoords='offset points',
+                    fontsize=7,
+                    color='#D32F2F',
+                    ha='center',
+                    fontweight='bold',
+                )
+
+        ax.set_title(f'{config["label"]}\n({config["purpose"]})', fontsize=11)
+        ax.set_xlabel('滞后阶 (Lag)', fontsize=10)
+        ax.set_ylabel('ACF', fontsize=10)
+        ax.legend(fontsize=8, loc='upper right')
+        ax.set_xlim(-1, len(acf_vals))
+        ax.grid(axis='y', alpha=0.3)
+        ax.tick_params(labelsize=9)
+
+    plt.tight_layout(rect=[0, 0, 1, 0.95])
+    fig.savefig(output_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[ACF图] 已保存: {output_path}")
+
+
+def _plot_pacf_grid(
+    pacf_data: Dict[str, Tuple[np.ndarray, np.ndarray, int, List[int]]],
+    output_path: Path,
+) -> None:
+    """
+    绘制 2x2 PACF 图
+
+    Parameters
+    ----------
+    pacf_data : dict
+        键为序列名称，值为 (pacf_values, confint, n_obs, significant_lags) 元组
+    output_path : Path
+        输出文件路径
+    """
+    fig, axes = plt.subplots(2, 2, figsize=(16, 12))
+    fig.suptitle("BTC 偏自相关函数 (PACF) 分析", fontsize=16, fontweight='bold', y=0.98)
+
+    series_keys = list(SERIES_CONFIG.keys())
+
+    for idx, key in enumerate(series_keys):
+        ax = axes[idx // 2, idx % 2]
+
+        if key not in pacf_data:
+            ax.set_visible(False)
+            continue
+
+        pacf_vals, confint, n_obs, sig_lags = pacf_data[key]
+        config = SERIES_CONFIG[key]
+        lags = np.arange(len(pacf_vals))
+        threshold = Z_CRITICAL / np.sqrt(n_obs)
+
+        # 绘制 PACF 柱状图
+        colors = []
+        for lag in lags:
+            if lag == 0:
+                colors.append('#4CAF50')
+            elif lag in sig_lags:
+                colors.append('#FF5722')
+            else:
+                colors.append('#A5D6A7')
+
+        ax.bar(lags, pacf_vals, color=colors, width=0.6, alpha=0.85)
+
+        # 置信带
+        ax.axhline(y=threshold, color='#E91E63', linestyle='--',
+                    linewidth=1.2, alpha=0.7, label=f'±{Z_CRITICAL}/√N = ±{threshold:.4f}')
+        ax.axhline(y=-threshold, color='#E91E63', linestyle='--',
+                    linewidth=1.2, alpha=0.7)
+        ax.axhline(y=0, color='black', linewidth=0.5)
+
+        # 标注显著滞后阶
+        sig_lags_sorted = sorted(sig_lags)[:10]
+        for lag in sig_lags_sorted:
+            if lag < len(pacf_vals):
+                ax.annotate(
+                    f'{lag}',
+                    xy=(lag, pacf_vals[lag]),
+                    xytext=(0, 8 if pacf_vals[lag] > 0 else -12),
+                    textcoords='offset points',
+                    fontsize=7,
+                    color='#BF360C',
+                    ha='center',
+                    fontweight='bold',
+                )
+
+        ax.set_title(f'{config["label"]}\n(PACF - 偏自相关)', fontsize=11)
+        ax.set_xlabel('滞后阶 (Lag)', fontsize=10)
+        ax.set_ylabel('PACF', fontsize=10)
+        ax.legend(fontsize=8, loc='upper right')
+        ax.set_xlim(-1, len(pacf_vals))
+        ax.grid(axis='y', alpha=0.3)
+        ax.tick_params(labelsize=9)
+
+    plt.tight_layout(rect=[0, 0, 1, 0.95])
+    fig.savefig(output_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[PACF图] 已保存: {output_path}")
+
+
+def _plot_significant_lags_summary(
+    all_sig_lags: Dict[str, List[int]],
+    n_obs: int,
+    output_path: Path,
+) -> None:
+    """
+    绘制所有序列的显著滞后阶汇总热力图
+
+    Parameters
+    ----------
+    all_sig_lags : dict
+        键为序列名称，值为显著滞后阶列表
+    n_obs : int
+        样本总数
+    output_path : Path
+        输出文件路径
+    """
+    max_lag = ACF_MAX_LAGS
+    series_names = list(SERIES_CONFIG.keys())
+    labels = [SERIES_CONFIG[k]["label"].split(" (")[0] for k in series_names]
+
+    # 构建二值矩阵：行=序列，列=滞后阶
+    matrix = np.zeros((len(series_names), max_lag + 1))
+    for i, key in enumerate(series_names):
+        for lag in all_sig_lags.get(key, []):
+            if lag <= max_lag:
+                matrix[i, lag] = 1
+
+    fig, ax = plt.subplots(figsize=(20, 4))
+    im = ax.imshow(matrix, aspect='auto', cmap='YlOrRd', interpolation='none')
+    ax.set_yticks(range(len(labels)))
+    ax.set_yticklabels(labels, fontsize=10)
+    ax.set_xlabel('滞后阶 (Lag)', fontsize=11)
+    ax.set_title('显著自相关滞后阶汇总 (ACF > 置信带)', fontsize=13, fontweight='bold')
+
+    # 每隔 5 个标注 x 轴
+    ax.set_xticks(range(0, max_lag + 1, 5))
+    ax.tick_params(labelsize=8)
+
+    plt.colorbar(im, ax=ax, label='显著 (1) / 不显著 (0)', shrink=0.8)
+    plt.tight_layout()
+    fig.savefig(output_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[显著滞后汇总图] 已保存: {output_path}")
+
+
+# ============================================================
+# 主入口函数
+# ============================================================
+
+def run_acf_analysis(
+    df: pd.DataFrame,
+    output_dir: Union[str, Path] = "output/acf",
+) -> Dict[str, Any]:
+    """
+    ACF/PACF 自相关分析主入口
+
+    对对数收益率、平方收益率、绝对收益率、成交量四个序列执行完整的
+    自相关分析流程，包括：ACF计算、PACF计算、显著滞后检测、周期性
+    模式识别、Ljung-Box检验以及可视化。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线DataFrame，需包含 log_return, squared_return, abs_return, volume 列
+        （通常由 preprocessing.add_derived_features 生成）
+    output_dir : str or Path
+        图表输出目录
+
+    Returns
+    -------
+    results : dict
+        分析结果字典，结构如下：
+        {
+            "acf": {series_name: {"values": ndarray, "significant_lags": list, ...}},
+            "pacf": {series_name: {"values": ndarray, "significant_lags": list, ...}},
+            "ljungbox": {series_name: DataFrame},
+            "periodic_patterns": {series_name: list of dict},
+            "summary": {...}
+        }
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    # 验证必要列存在
+    required_cols = [cfg["column"] for cfg in SERIES_CONFIG.values()]
+    missing = [c for c in required_cols if c not in df.columns]
+    if missing:
+        raise ValueError(f"DataFrame 缺少必要列: {missing}。请先调用 add_derived_features()。")
+
+    print("=" * 70)
+    print("ACF / PACF 自相关分析")
+    print("=" * 70)
+    print(f"样本量: {len(df)}")
+    print(f"时间范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"ACF最大滞后: {ACF_MAX_LAGS} | PACF最大滞后: {PACF_MAX_LAGS}")
+    print(f"置信水平: 95% (z={Z_CRITICAL})")
+    print()
+
+    # 存储结果
+    results = {
+        "acf": {},
+        "pacf": {},
+        "ljungbox": {},
+        "periodic_patterns": {},
+        "summary": {},
+    }
+
+    # 用于绘图的中间数据
+    acf_plot_data = {}   # {key: (acf_vals, confint, n_obs, sig_lags_set)}
+    pacf_plot_data = {}
+    all_sig_lags = {}    # {key: list of significant lag indices}
+
+    # --------------------------------------------------------
+    # 逐序列分析
+    # --------------------------------------------------------
+    for key, config in SERIES_CONFIG.items():
+        col = config["column"]
+        label = config["label"]
+        purpose = config["purpose"]
+        series = df[col].dropna()
+        n_obs = len(series)
+
+        print(f"{'─' * 60}")
+        print(f"序列: {label}")
+        print(f"  目的: {purpose}")
+        print(f"  有效样本: {n_obs}")
+
+        # ---------- ACF ----------
+        acf_vals, acf_confint = compute_acf(series, nlags=ACF_MAX_LAGS)
+        sig_lags_acf = find_significant_lags(acf_vals, n_obs)
+        sig_lags_set = set(sig_lags_acf)
+
+        results["acf"][key] = {
+            "values": acf_vals,
+            "confint": acf_confint,
+            "significant_lags": sig_lags_acf,
+            "n_obs": n_obs,
+            "threshold": Z_CRITICAL / np.sqrt(n_obs),
+        }
+        acf_plot_data[key] = (acf_vals, acf_confint, n_obs, sig_lags_set)
+        all_sig_lags[key] = sig_lags_acf
+
+        print(f"  [ACF] 显著滞后阶数: {len(sig_lags_acf)}")
+        if sig_lags_acf:
+            # 打印前 20 个显著滞后
+            display_lags = sig_lags_acf[:20]
+            lag_str = ", ".join(str(l) for l in display_lags)
+            if len(sig_lags_acf) > 20:
+                lag_str += f" ... (共{len(sig_lags_acf)}个)"
+            print(f"        滞后阶: {lag_str}")
+            # 打印最大 ACF 值的滞后阶（排除 lag 0）
+            max_idx = max(range(1, len(acf_vals)), key=lambda i: abs(acf_vals[i]))
+            print(f"        最大|ACF|: lag={max_idx}, ACF={acf_vals[max_idx]:.6f}")
+
+        # ---------- PACF ----------
+        pacf_vals, pacf_confint = compute_pacf(series, nlags=PACF_MAX_LAGS)
+        sig_lags_pacf = find_significant_lags(pacf_vals, n_obs)
+        sig_lags_pacf_set = set(sig_lags_pacf)
+
+        results["pacf"][key] = {
+            "values": pacf_vals,
+            "confint": pacf_confint,
+            "significant_lags": sig_lags_pacf,
+            "n_obs": n_obs,
+        }
+        pacf_plot_data[key] = (pacf_vals, pacf_confint, n_obs, sig_lags_pacf_set)
+
+        print(f"  [PACF] 显著滞后阶数: {len(sig_lags_pacf)}")
+        if sig_lags_pacf:
+            display_lags_p = sig_lags_pacf[:15]
+            lag_str_p = ", ".join(str(l) for l in display_lags_p)
+            if len(sig_lags_pacf) > 15:
+                lag_str_p += f" ... (共{len(sig_lags_pacf)}个)"
+            print(f"        滞后阶: {lag_str_p}")
+
+        # ---------- 周期性模式检测 ----------
+        periodic = detect_periodic_pattern(sig_lags_acf)
+        results["periodic_patterns"][key] = periodic
+
+        if periodic:
+            print(f"  [周期性] 检测到 {len(periodic)} 个周期模式:")
+            for pat in periodic:
+                hit_str = ", ".join(str(h) for h in pat["hits"][:8])
+                print(f"    - 周期 {pat['period']}天 (命中{pat['count']}次): "
+                      f"lags=[{hit_str}]")
+                print(f"      FFT验证: {pat['fft_note']}")
+        else:
+            print(f"  [周期性] 未检测到明显周期模式")
+
+        # ---------- Ljung-Box 检验 ----------
+        lb_df = run_ljungbox_test(series, LJUNGBOX_LAG_GROUPS)
+        results["ljungbox"][key] = lb_df
+
+        print(f"  [Ljung-Box检验]")
+        if not lb_df.empty:
+            for _, row in lb_df.iterrows():
+                lag_val = int(row["lag"])
+                stat = row["lb_stat"]
+                pval = row["lb_pvalue"]
+                # 判断显著性
+                sig_mark = "***" if pval < 0.001 else "**" if pval < 0.01 else "*" if pval < 0.05 else ""
+                reject_str = "拒绝H0(存在自相关)" if pval < 0.05 else "不拒绝H0(无显著自相关)"
+                print(f"    lag={lag_val:3d}: Q={stat:12.2f}, p={pval:.6f} {sig_mark} → {reject_str}")
+        print()
+
+    # --------------------------------------------------------
+    # 汇总
+    # --------------------------------------------------------
+    print("=" * 70)
+    print("分析汇总")
+    print("=" * 70)
+
+    summary = {}
+    for key, config in SERIES_CONFIG.items():
+        label_short = config["label"].split(" (")[0]
+        acf_sig = results["acf"][key]["significant_lags"]
+        pacf_sig = results["pacf"][key]["significant_lags"]
+        lb = results["ljungbox"][key]
+        periodic = results["periodic_patterns"][key]
+
+        # Ljung-Box 在最大 lag 下是否显著
+        lb_significant = False
+        if not lb.empty:
+            max_lag_row = lb.iloc[-1]
+            lb_significant = max_lag_row["lb_pvalue"] < 0.05
+
+        summary[key] = {
+            "label": label_short,
+            "acf_significant_count": len(acf_sig),
+            "pacf_significant_count": len(pacf_sig),
+            "ljungbox_rejects_white_noise": lb_significant,
+            "periodic_patterns_count": len(periodic),
+            "periodic_periods": [p["period"] for p in periodic],
+        }
+
+        lb_verdict = "存在自相关" if lb_significant else "无显著自相关"
+        period_str = (
+            ", ".join(f"{p}天" for p in summary[key]["periodic_periods"])
+            if periodic else "无"
+        )
+
+        print(f"  {label_short}:")
+        print(f"    ACF显著滞后: {len(acf_sig)}个 | PACF显著滞后: {len(pacf_sig)}个")
+        print(f"    Ljung-Box: {lb_verdict} | 周期性模式: {period_str}")
+
+    results["summary"] = summary
+
+    # --------------------------------------------------------
+    # 可视化
+    # --------------------------------------------------------
+    print()
+    print("生成可视化图表...")
+
+    # 1) ACF 2x2 网格图
+    _plot_acf_grid(acf_plot_data, output_dir / "acf_grid.png")
+
+    # 2) PACF 2x2 网格图
+    _plot_pacf_grid(pacf_plot_data, output_dir / "pacf_grid.png")
+
+    # 3) 显著滞后汇总热力图
+    _plot_significant_lags_summary(
+        all_sig_lags,
+        n_obs=len(df.dropna(subset=["log_return"])),
+        output_path=output_dir / "significant_lags_heatmap.png",
+    )
+
+    print()
+    print("=" * 70)
+    print("ACF/PACF 分析完成")
+    print(f"图表输出目录: {output_dir.resolve()}")
+    print("=" * 70)
+
+    return results
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == "__main__":
+    from data_loader import load_daily
+    from preprocessing import add_derived_features
+
+    # 加载并预处理数据
+    print("加载日线数据...")
+    df = load_daily()
+    print(f"原始数据: {len(df)} 行")
+
+    print("添加衍生特征...")
+    df = add_derived_features(df)
+    print(f"预处理后: {len(df)} 行, 列={list(df.columns)}")
+    print()
+
+    # 执行 ACF/PACF 分析
+    results = run_acf_analysis(df, output_dir="output/acf")
+
+    # 打印结果概要
+    print()
+    print("返回结果键:")
+    for k, v in results.items():
+        if isinstance(v, dict):
+            print(f"  results['{k}']: {list(v.keys())}")
+        else:
+            print(f"  results['{k}']: {type(v).__name__}")
diff --git a/src/anomaly.py b/src/anomaly.py
new file mode 100644
index 0000000..c4cb03c
--- /dev/null
+++ b/src/anomaly.py
@@ -0,0 +1,774 @@
+"""异常检测与前兆模式提取模块
+
+分析内容：
+- 集成异常检测（Isolation Forest + LOF + COPOD，≥2/3 一致判定）
+- GARCH 条件波动率异常检测（标准化残差 > 3）
+- 异常前兆模式提取（Random Forest 分类器）
+- 事件对齐分析（比特币减半等重大事件）
+- 可视化：异常标记价格图、特征分布对比、ROC 曲线、特征重要性
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+import warnings
+from pathlib import Path
+from typing import Optional, Dict, List, Tuple
+
+from sklearn.ensemble import IsolationForest, RandomForestClassifier
+from sklearn.neighbors import LocalOutlierFactor
+from sklearn.preprocessing import StandardScaler
+from sklearn.model_selection import cross_val_predict, StratifiedKFold
+from sklearn.metrics import roc_auc_score, roc_curve
+
+try:
+    from pyod.models.copod import COPOD
+    HAS_COPOD = True
+except ImportError:
+    HAS_COPOD = False
+    print("[警告] pyod 未安装，COPOD 检测将跳过，使用 2/2 一致判定")
+
+
+# ============================================================
+# 1. 检测特征定义
+# ============================================================
+
+# 用于异常检测的特征列
+DETECTION_FEATURES = [
+    'log_return',
+    'abs_return',
+    'volume_ratio',
+    'range_pct',
+    'taker_buy_ratio',
+    'vol_7d',
+]
+
+# 比特币减半及其他重大事件日期
+KNOWN_EVENTS = {
+    '2012-11-28': '第一次减半',
+    '2016-07-09': '第二次减半',
+    '2020-05-11': '第三次减半',
+    '2024-04-20': '第四次减半',
+    '2017-12-17': '2017年牛市顶点',
+    '2018-12-15': '2018年熊市底部',
+    '2020-03-12': '新冠黑色星期四',
+    '2021-04-14': '2021年牛市中期高点',
+    '2021-11-10': '2021年牛市顶点',
+    '2022-06-18': 'Luna/3AC 暴跌',
+    '2022-11-09': 'FTX 崩盘',
+    '2024-01-11': 'BTC ETF 获批',
+}
+
+
+# ============================================================
+# 2. 集成异常检测
+# ============================================================
+
+def prepare_features(df: pd.DataFrame) -> Tuple[pd.DataFrame, np.ndarray]:
+    """
+    准备异常检测特征矩阵
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        含衍生特征的日线数据
+
+    Returns
+    -------
+    features_df : pd.DataFrame
+        特征子集（已去除 NaN）
+    X_scaled : np.ndarray
+        标准化后的特征矩阵
+    """
+    # 选取可用特征
+    available = [f for f in DETECTION_FEATURES if f in df.columns]
+    if len(available) < 3:
+        raise ValueError(f"可用特征不足: {available}，至少需要 3 个")
+
+    features_df = df[available].dropna()
+
+    # 标准化
+    scaler = StandardScaler()
+    X_scaled = scaler.fit_transform(features_df.values)
+
+    return features_df, X_scaled
+
+
+def detect_isolation_forest(X: np.ndarray, contamination: float = 0.05) -> np.ndarray:
+    """Isolation Forest 异常检测"""
+    model = IsolationForest(
+        n_estimators=200,
+        contamination=contamination,
+        random_state=42,
+        n_jobs=-1,
+    )
+    # -1 = 异常, 1 = 正常
+    labels = model.fit_predict(X)
+    return (labels == -1).astype(int)
+
+
+def detect_lof(X: np.ndarray, contamination: float = 0.05) -> np.ndarray:
+    """Local Outlier Factor 异常检测"""
+    model = LocalOutlierFactor(
+        n_neighbors=20,
+        contamination=contamination,
+        novelty=False,
+        n_jobs=-1,
+    )
+    labels = model.fit_predict(X)
+    return (labels == -1).astype(int)
+
+
+def detect_copod(X: np.ndarray, contamination: float = 0.05) -> np.ndarray:
+    """COPOD 异常检测（基于 Copula）"""
+    if not HAS_COPOD:
+        return None
+
+    model = COPOD(contamination=contamination)
+    labels = model.fit_predict(X)
+    return labels.astype(int)
+
+
+def ensemble_anomaly_detection(
+    df: pd.DataFrame,
+    contamination: float = 0.05,
+    min_agreement: int = 2,
+) -> pd.DataFrame:
+    """
+    集成异常检测：要求 ≥ min_agreement / n_methods 一致判定
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        含衍生特征的日线数据
+    contamination : float
+        预期异常比例
+    min_agreement : int
+        最少多少个方法一致才标记为异常
+
+    Returns
+    -------
+    pd.DataFrame
+        添加了各方法检测结果及集成结果的数据
+    """
+    features_df, X_scaled = prepare_features(df)
+
+    print(f"  特征矩阵: {X_scaled.shape[0]} 样本 x {X_scaled.shape[1]} 特征")
+
+    # 执行各方法检测
+    print("  [1/3] Isolation Forest...")
+    if_labels = detect_isolation_forest(X_scaled, contamination)
+
+    print("  [2/3] Local Outlier Factor...")
+    lof_labels = detect_lof(X_scaled, contamination)
+
+    n_methods = 2
+    vote_matrix = np.column_stack([if_labels, lof_labels])
+    method_names = ['iforest', 'lof']
+
+    print("  [3/3] COPOD...")
+    copod_labels = detect_copod(X_scaled, contamination)
+    if copod_labels is not None:
+        vote_matrix = np.column_stack([vote_matrix, copod_labels])
+        method_names.append('copod')
+        n_methods = 3
+    else:
+        print("    COPOD 不可用，使用 2 方法集成")
+
+    # 投票
+    vote_sum = vote_matrix.sum(axis=1)
+    ensemble_label = (vote_sum >= min_agreement).astype(int)
+
+    # 构建结果 DataFrame
+    result = features_df.copy()
+    for i, name in enumerate(method_names):
+        result[f'anomaly_{name}'] = vote_matrix[:, i]
+    result['anomaly_votes'] = vote_sum
+    result['anomaly_ensemble'] = ensemble_label
+
+    # 打印各方法统计
+    print(f"\n  异常检测统计:")
+    for name in method_names:
+        n_anom = result[f'anomaly_{name}'].sum()
+        print(f"    {name:>12}: {n_anom} 个异常 ({n_anom / len(result) * 100:.2f}%)")
+    n_ensemble = ensemble_label.sum()
+    print(f"    {'集成(≥' + str(min_agreement) + ')':>12}: {n_ensemble} 个异常 ({n_ensemble / len(result) * 100:.2f}%)")
+
+    # 方法间重叠度
+    print(f"\n  方法间重叠:")
+    for i in range(len(method_names)):
+        for j in range(i + 1, len(method_names)):
+            overlap = ((vote_matrix[:, i] == 1) & (vote_matrix[:, j] == 1)).sum()
+            n_i = vote_matrix[:, i].sum()
+            n_j = vote_matrix[:, j].sum()
+            if min(n_i, n_j) > 0:
+                jaccard = overlap / ((vote_matrix[:, i] == 1) | (vote_matrix[:, j] == 1)).sum()
+            else:
+                jaccard = 0.0
+            print(f"    {method_names[i]} ∩ {method_names[j]}: "
+                  f"{overlap} 个 (Jaccard={jaccard:.3f})")
+
+    return result
+
+
+# ============================================================
+# 3. GARCH 条件波动率异常
+# ============================================================
+
+def garch_anomaly_detection(
+    df: pd.DataFrame,
+    threshold: float = 3.0,
+) -> pd.Series:
+    """
+    基于 GARCH(1,1) 的条件波动率异常检测
+
+    标准化残差 |ε_t / σ_t| > threshold 的日期标记为异常
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        含 log_return 列的数据
+    threshold : float
+        标准化残差阈值
+
+    Returns
+    -------
+    pd.Series
+        异常标记（1 = 异常，0 = 正常），索引与输入对齐
+    """
+    from arch import arch_model
+
+    returns = df['log_return'].dropna()
+    r_pct = returns * 100  # arch 库使用百分比收益率
+
+    # 拟合 GARCH(1,1)
+    model = arch_model(r_pct, vol='Garch', p=1, q=1, mean='Constant', dist='Normal')
+    with warnings.catch_warnings():
+        warnings.simplefilter("ignore")
+        result = model.fit(disp='off')
+
+    # 计算标准化残差
+    std_resid = result.resid / result.conditional_volatility
+    anomaly = (std_resid.abs() > threshold).astype(int)
+
+    n_anom = anomaly.sum()
+    print(f"  GARCH 异常: {n_anom} 个 (|标准化残差| > {threshold})")
+    print(f"  GARCH 模型: α={result.params.get('alpha[1]', np.nan):.4f}, "
+          f"β={result.params.get('beta[1]', np.nan):.4f}, "
+          f"持续性={result.params.get('alpha[1]', 0) + result.params.get('beta[1]', 0):.4f}")
+
+    return anomaly
+
+
+# ============================================================
+# 4. 前兆模式提取
+# ============================================================
+
+def extract_precursor_features(
+    df: pd.DataFrame,
+    anomaly_labels: pd.Series,
+    lookback_windows: List[int] = None,
+) -> Tuple[pd.DataFrame, pd.Series]:
+    """
+    提取异常日前若干天的特征作为前兆信号
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        含衍生特征的数据
+    anomaly_labels : pd.Series
+        异常标记（1 = 异常）
+    lookback_windows : list of int
+        向前回溯的天数窗口
+
+    Returns
+    -------
+    X : pd.DataFrame
+        前兆特征矩阵
+    y : pd.Series
+        标签（1 = 后续发生异常, 0 = 正常）
+    """
+    if lookback_windows is None:
+        lookback_windows = [5, 10, 20]
+
+    # 确保对齐
+    common_idx = df.index.intersection(anomaly_labels.index)
+    df_aligned = df.loc[common_idx]
+    labels_aligned = anomaly_labels.loc[common_idx]
+
+    base_features = [f for f in DETECTION_FEATURES if f in df.columns]
+    precursor_features = {}
+
+    for window in lookback_windows:
+        for feat in base_features:
+            if feat not in df_aligned.columns:
+                continue
+            series = df_aligned[feat]
+
+            # 滚动统计作为前兆特征
+            precursor_features[f'{feat}_mean_{window}d'] = series.rolling(window).mean()
+            precursor_features[f'{feat}_std_{window}d'] = series.rolling(window).std()
+            precursor_features[f'{feat}_max_{window}d'] = series.rolling(window).max()
+            precursor_features[f'{feat}_min_{window}d'] = series.rolling(window).min()
+
+            # 趋势特征（最近值 vs 窗口均值的偏离）
+            rolling_mean = series.rolling(window).mean()
+            precursor_features[f'{feat}_deviation_{window}d'] = series - rolling_mean
+
+    X = pd.DataFrame(precursor_features, index=df_aligned.index)
+
+    # 标签: 未来是否出现异常（shift(-1) 使得特征是"之前"的）
+    # 我们用当前特征预测当天是否异常
+    y = labels_aligned
+
+    # 去除 NaN
+    valid_mask = X.notna().all(axis=1) & y.notna()
+    X = X[valid_mask]
+    y = y[valid_mask]
+
+    return X, y
+
+
+def train_precursor_classifier(
+    X: pd.DataFrame,
+    y: pd.Series,
+) -> Dict:
+    """
+    训练前兆模式分类器（Random Forest）
+
+    使用分层 K 折交叉验证评估
+
+    Parameters
+    ----------
+    X : pd.DataFrame
+        前兆特征矩阵
+    y : pd.Series
+        标签
+
+    Returns
+    -------
+    dict
+        AUC、特征重要性等结果
+    """
+    if len(X) < 50 or y.sum() < 10:
+        print(f"  [警告] 样本不足 (n={len(X)}, 正例={y.sum()})，跳过分类器训练")
+        return {}
+
+    # 标准化
+    scaler = StandardScaler()
+    X_scaled = scaler.fit_transform(X)
+
+    # 分层 K 折
+    n_splits = min(5, int(y.sum()))
+    if n_splits < 2:
+        print("  [警告] 正例数过少，无法进行交叉验证")
+        return {}
+
+    cv = StratifiedKFold(n_splits=n_splits, shuffle=True, random_state=42)
+
+    clf = RandomForestClassifier(
+        n_estimators=200,
+        max_depth=10,
+        min_samples_split=5,
+        class_weight='balanced',
+        random_state=42,
+        n_jobs=-1,
+    )
+
+    # 交叉验证预测概率
+    try:
+        y_prob = cross_val_predict(clf, X_scaled, y, cv=cv, method='predict_proba')[:, 1]
+        auc = roc_auc_score(y, y_prob)
+    except Exception as e:
+        print(f"  [错误] 交叉验证失败: {e}")
+        return {}
+
+    # 在全量数据上训练获取特征重要性
+    clf.fit(X_scaled, y)
+    importances = pd.Series(clf.feature_importances_, index=X.columns)
+    importances = importances.sort_values(ascending=False)
+
+    # ROC 曲线数据
+    fpr, tpr, thresholds = roc_curve(y, y_prob)
+
+    results = {
+        'auc': auc,
+        'feature_importances': importances,
+        'y_true': y,
+        'y_prob': y_prob,
+        'fpr': fpr,
+        'tpr': tpr,
+    }
+
+    print(f"\n  前兆分类器结果:")
+    print(f"    AUC: {auc:.4f}")
+    print(f"    样本: {len(y)} (异常: {y.sum()}, 正常: {(y == 0).sum()})")
+    print(f"    Top-10 重要特征:")
+    for feat, imp in importances.head(10).items():
+        print(f"      {feat:<40} {imp:.4f}")
+
+    return results
+
+
+# ============================================================
+# 5. 事件对齐分析
+# ============================================================
+
+def align_with_events(
+    anomaly_dates: pd.DatetimeIndex,
+    tolerance_days: int = 5,
+) -> pd.DataFrame:
+    """
+    将异常日期与已知事件对齐
+
+    Parameters
+    ----------
+    anomaly_dates : pd.DatetimeIndex
+        异常日期列表
+    tolerance_days : int
+        容差天数（异常日期与事件日期相差 ≤ tolerance_days 天即视为匹配）
+
+    Returns
+    -------
+    pd.DataFrame
+        匹配结果
+    """
+    matches = []
+
+    for event_date_str, event_name in KNOWN_EVENTS.items():
+        event_date = pd.Timestamp(event_date_str)
+
+        for anom_date in anomaly_dates:
+            diff_days = abs((anom_date - event_date).days)
+            if diff_days <= tolerance_days:
+                matches.append({
+                    'anomaly_date': anom_date,
+                    'event_date': event_date,
+                    'event_name': event_name,
+                    'diff_days': diff_days,
+                })
+
+    if matches:
+        result = pd.DataFrame(matches)
+        print(f"\n  事件对齐 (容差 {tolerance_days} 天):")
+        for _, row in result.iterrows():
+            print(f"    异常 {row['anomaly_date'].strftime('%Y-%m-%d')} ↔ "
+                  f"{row['event_name']} ({row['event_date'].strftime('%Y-%m-%d')}, "
+                  f"差 {row['diff_days']} 天)")
+        return result
+    else:
+        print(f"  [信息] 无异常日期与已知事件匹配 (容差 {tolerance_days} 天)")
+        return pd.DataFrame()
+
+
+# ============================================================
+# 6. 可视化
+# ============================================================
+
+def plot_price_with_anomalies(
+    df: pd.DataFrame,
+    anomaly_result: pd.DataFrame,
+    garch_anomaly: Optional[pd.Series],
+    output_dir: Path,
+):
+    """绘制价格图，标注异常点"""
+    fig, axes = plt.subplots(2, 1, figsize=(16, 10), gridspec_kw={'height_ratios': [3, 1]})
+
+    # 上图：价格 + 异常标记
+    ax1 = axes[0]
+    ax1.plot(df.index, df['close'], linewidth=0.6, color='steelblue', alpha=0.8, label='BTC 收盘价')
+
+    # 集成异常
+    ensemble_anom = anomaly_result[anomaly_result['anomaly_ensemble'] == 1]
+    if not ensemble_anom.empty:
+        # 获取异常日期对应的收盘价
+        anom_prices = df.loc[df.index.isin(ensemble_anom.index), 'close']
+        ax1.scatter(anom_prices.index, anom_prices.values,
+                    color='red', s=30, zorder=5, label=f'集成异常 (n={len(anom_prices)})',
+                    alpha=0.7, edgecolors='darkred', linewidths=0.5)
+
+    # GARCH 异常
+    if garch_anomaly is not None:
+        garch_anom_dates = garch_anomaly[garch_anomaly == 1].index
+        garch_prices = df.loc[df.index.isin(garch_anom_dates), 'close']
+        if not garch_prices.empty:
+            ax1.scatter(garch_prices.index, garch_prices.values,
+                        color='orange', s=20, zorder=4, marker='^',
+                        label=f'GARCH 异常 (n={len(garch_prices)})',
+                        alpha=0.7, edgecolors='darkorange', linewidths=0.5)
+
+    ax1.set_ylabel('价格 (USDT)', fontsize=12)
+    ax1.set_title('BTC 价格与异常检测结果', fontsize=14)
+    ax1.legend(fontsize=10, loc='upper left')
+    ax1.grid(True, alpha=0.3)
+    ax1.set_yscale('log')
+
+    # 下图：成交量 + 异常标记
+    ax2 = axes[1]
+    if 'volume' in df.columns:
+        ax2.bar(df.index, df['volume'], width=1, color='steelblue', alpha=0.4, label='成交量')
+        if not ensemble_anom.empty:
+            anom_vol = df.loc[df.index.isin(ensemble_anom.index), 'volume']
+            ax2.bar(anom_vol.index, anom_vol.values, width=1, color='red', alpha=0.7, label='异常日成交量')
+    ax2.set_ylabel('成交量', fontsize=12)
+    ax2.set_xlabel('日期', fontsize=12)
+    ax2.legend(fontsize=10)
+    ax2.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'anomaly_price_chart.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'anomaly_price_chart.png'}")
+
+
+def plot_anomaly_feature_distributions(
+    anomaly_result: pd.DataFrame,
+    output_dir: Path,
+):
+    """绘制异常日 vs 正常日的特征分布对比"""
+    features_to_plot = [f for f in DETECTION_FEATURES if f in anomaly_result.columns]
+    n_feats = len(features_to_plot)
+    if n_feats == 0:
+        print("  [警告] 无可绘制特征")
+        return
+
+    n_cols = 3
+    n_rows = (n_feats + n_cols - 1) // n_cols
+
+    fig, axes = plt.subplots(n_rows, n_cols, figsize=(5 * n_cols, 4 * n_rows))
+    axes = np.array(axes).flatten()
+
+    normal = anomaly_result[anomaly_result['anomaly_ensemble'] == 0]
+    anomaly = anomaly_result[anomaly_result['anomaly_ensemble'] == 1]
+
+    for idx, feat in enumerate(features_to_plot):
+        ax = axes[idx]
+
+        # 正常分布
+        vals_normal = normal[feat].dropna()
+        vals_anomaly = anomaly[feat].dropna()
+
+        ax.hist(vals_normal, bins=50, density=True, alpha=0.6,
+                color='steelblue', label=f'正常 (n={len(vals_normal)})', edgecolor='white', linewidth=0.3)
+        if len(vals_anomaly) > 0:
+            ax.hist(vals_anomaly, bins=30, density=True, alpha=0.6,
+                    color='red', label=f'异常 (n={len(vals_anomaly)})', edgecolor='white', linewidth=0.3)
+
+        ax.set_title(feat, fontsize=11)
+        ax.legend(fontsize=8)
+        ax.grid(True, alpha=0.3)
+
+    # 隐藏多余子图
+    for idx in range(n_feats, len(axes)):
+        axes[idx].set_visible(False)
+
+    fig.suptitle('异常日 vs 正常日 特征分布对比', fontsize=14, y=1.02)
+    fig.tight_layout()
+    fig.savefig(output_dir / 'anomaly_feature_distributions.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'anomaly_feature_distributions.png'}")
+
+
+def plot_precursor_roc(precursor_results: Dict, output_dir: Path):
+    """绘制前兆分类器 ROC 曲线"""
+    if not precursor_results or 'fpr' not in precursor_results:
+        print("  [警告] 无前兆分类器结果，跳过 ROC 曲线")
+        return
+
+    fig, ax = plt.subplots(figsize=(8, 8))
+
+    fpr = precursor_results['fpr']
+    tpr = precursor_results['tpr']
+    auc = precursor_results['auc']
+
+    ax.plot(fpr, tpr, color='steelblue', linewidth=2,
+            label=f'Random Forest (AUC = {auc:.4f})')
+    ax.plot([0, 1], [0, 1], 'k--', linewidth=1, label='随机基线')
+
+    ax.set_xlabel('假阳性率 (FPR)', fontsize=12)
+    ax.set_ylabel('真阳性率 (TPR)', fontsize=12)
+    ax.set_title('异常前兆分类器 ROC 曲线', fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+    ax.set_xlim([-0.02, 1.02])
+    ax.set_ylim([-0.02, 1.02])
+
+    fig.savefig(output_dir / 'precursor_roc_curve.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'precursor_roc_curve.png'}")
+
+
+def plot_feature_importance(precursor_results: Dict, output_dir: Path, top_n: int = 20):
+    """绘制前兆特征重要性条形图"""
+    if not precursor_results or 'feature_importances' not in precursor_results:
+        print("  [警告] 无特征重要性数据，跳过")
+        return
+
+    importances = precursor_results['feature_importances'].head(top_n)
+
+    fig, ax = plt.subplots(figsize=(10, max(6, top_n * 0.35)))
+
+    colors = plt.cm.RdYlBu_r(np.linspace(0.2, 0.8, len(importances)))
+    ax.barh(range(len(importances)), importances.values[::-1],
+            color=colors[::-1], edgecolor='white', linewidth=0.5)
+    ax.set_yticks(range(len(importances)))
+    ax.set_yticklabels(importances.index[::-1], fontsize=9)
+    ax.set_xlabel('特征重要性', fontsize=12)
+    ax.set_title(f'异常前兆 Top-{top_n} 特征重要性 (Random Forest)', fontsize=13)
+    ax.grid(True, alpha=0.3, axis='x')
+
+    fig.savefig(output_dir / 'precursor_feature_importance.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'precursor_feature_importance.png'}")
+
+
+# ============================================================
+# 7. 结果打印
+# ============================================================
+
+def print_anomaly_summary(
+    anomaly_result: pd.DataFrame,
+    garch_anomaly: Optional[pd.Series],
+    precursor_results: Dict,
+):
+    """打印异常检测汇总"""
+    print("\n" + "=" * 70)
+    print("异常检测结果汇总")
+    print("=" * 70)
+
+    # 集成异常统计
+    n_total = len(anomaly_result)
+    n_ensemble = anomaly_result['anomaly_ensemble'].sum()
+    print(f"\n  总样本数: {n_total}")
+    print(f"  集成异常数: {n_ensemble} ({n_ensemble / n_total * 100:.2f}%)")
+
+    # 各方法统计
+    method_cols = [c for c in anomaly_result.columns if c.startswith('anomaly_') and c != 'anomaly_ensemble' and c != 'anomaly_votes']
+    for col in method_cols:
+        method_name = col.replace('anomaly_', '')
+        n_anom = anomaly_result[col].sum()
+        print(f"    {method_name:>12}: {n_anom} ({n_anom / n_total * 100:.2f}%)")
+
+    # GARCH 异常
+    if garch_anomaly is not None:
+        n_garch = garch_anomaly.sum()
+        print(f"    {'GARCH':>12}: {n_garch} ({n_garch / len(garch_anomaly) * 100:.2f}%)")
+
+        # 集成异常与 GARCH 异常的重叠
+        common_idx = anomaly_result.index.intersection(garch_anomaly.index)
+        if len(common_idx) > 0:
+            ensemble_set = set(anomaly_result.loc[common_idx][anomaly_result.loc[common_idx, 'anomaly_ensemble'] == 1].index)
+            garch_set = set(garch_anomaly[garch_anomaly == 1].index)
+            overlap = len(ensemble_set & garch_set)
+            print(f"\n  集成 ∩ GARCH 重叠: {overlap} 个")
+
+    # 前兆分类器
+    if precursor_results and 'auc' in precursor_results:
+        print(f"\n  前兆分类器 AUC: {precursor_results['auc']:.4f}")
+        print(f"  Top-5 前兆特征:")
+        for feat, imp in precursor_results['feature_importances'].head(5).items():
+            print(f"    {feat:<40} {imp:.4f}")
+
+
+# ============================================================
+# 8. 主入口
+# ============================================================
+
+def run_anomaly_analysis(
+    df: pd.DataFrame,
+    output_dir: str = "output/anomaly",
+) -> Dict:
+    """
+    异常检测与前兆模式分析主函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（已通过 add_derived_features 添加衍生特征）
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        包含所有分析结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 70)
+    print("BTC 异常检测与前兆模式分析")
+    print("=" * 70)
+    print(f"数据范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"样本数量: {len(df)}")
+
+    # 设置中文字体
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    # --- 集成异常检测 ---
+    print("\n>>> [1/5] 执行集成异常检测...")
+    anomaly_result = ensemble_anomaly_detection(df, contamination=0.05, min_agreement=2)
+
+    # --- GARCH 条件波动率异常 ---
+    print("\n>>> [2/5] 执行 GARCH 条件波动率异常检测...")
+    garch_anomaly = None
+    try:
+        garch_anomaly = garch_anomaly_detection(df, threshold=3.0)
+    except Exception as e:
+        print(f"  [错误] GARCH 异常检测失败: {e}")
+
+    # --- 事件对齐 ---
+    print("\n>>> [3/5] 执行事件对齐分析...")
+    ensemble_anom_dates = anomaly_result[anomaly_result['anomaly_ensemble'] == 1].index
+    event_alignment = align_with_events(ensemble_anom_dates, tolerance_days=5)
+
+    # --- 前兆模式提取 ---
+    print("\n>>> [4/5] 提取前兆模式并训练分类器...")
+    precursor_results = {}
+    try:
+        X_precursor, y_precursor = extract_precursor_features(
+            df, anomaly_result['anomaly_ensemble'], lookback_windows=[5, 10, 20]
+        )
+        print(f"  前兆特征矩阵: {X_precursor.shape[0]} 样本 x {X_precursor.shape[1]} 特征")
+        precursor_results = train_precursor_classifier(X_precursor, y_precursor)
+    except Exception as e:
+        print(f"  [错误] 前兆模式提取失败: {e}")
+
+    # --- 可视化 ---
+    print("\n>>> [5/5] 生成可视化图表...")
+    plot_price_with_anomalies(df, anomaly_result, garch_anomaly, output_dir)
+    plot_anomaly_feature_distributions(anomaly_result, output_dir)
+    plot_precursor_roc(precursor_results, output_dir)
+    plot_feature_importance(precursor_results, output_dir)
+
+    # --- 汇总打印 ---
+    print_anomaly_summary(anomaly_result, garch_anomaly, precursor_results)
+
+    print("\n" + "=" * 70)
+    print("异常检测与前兆模式分析完成！")
+    print(f"图表已保存至: {output_dir.resolve()}")
+    print("=" * 70)
+
+    return {
+        'anomaly_result': anomaly_result,
+        'garch_anomaly': garch_anomaly,
+        'event_alignment': event_alignment,
+        'precursor_results': precursor_results,
+    }
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == '__main__':
+    from src.data_loader import load_daily
+    from src.preprocessing import add_derived_features
+
+    df = load_daily()
+    df = add_derived_features(df)
+    run_anomaly_analysis(df)
diff --git a/src/calendar_analysis.py b/src/calendar_analysis.py
new file mode 100644
index 0000000..667a0cc
--- /dev/null
+++ b/src/calendar_analysis.py
@@ -0,0 +1,565 @@
+"""日历效应分析模块 - 星期、月份、小时、季度、月初月末效应"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+import matplotlib.ticker as mticker
+import seaborn as sns
+from pathlib import Path
+from itertools import combinations
+from scipy import stats
+
+# 中文显示配置
+plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+plt.rcParams['axes.unicode_minus'] = False
+
+# 星期名称映射（中英文）
+WEEKDAY_NAMES_CN = {0: '周一', 1: '周二', 2: '周三', 3: '周四',
+                    4: '周五', 5: '周六', 6: '周日'}
+WEEKDAY_NAMES_EN = {0: 'Mon', 1: 'Tue', 2: 'Wed', 3: 'Thu',
+                    4: 'Fri', 5: 'Sat', 6: 'Sun'}
+
+# 月份名称映射
+MONTH_NAMES_CN = {1: '1月', 2: '2月', 3: '3月', 4: '4月',
+                  5: '5月', 6: '6月', 7: '7月', 8: '8月',
+                  9: '9月', 10: '10月', 11: '11月', 12: '12月'}
+MONTH_NAMES_EN = {1: 'Jan', 2: 'Feb', 3: 'Mar', 4: 'Apr',
+                  5: 'May', 6: 'Jun', 7: 'Jul', 8: 'Aug',
+                  9: 'Sep', 10: 'Oct', 11: 'Nov', 12: 'Dec'}
+
+
+def _bonferroni_pairwise_mannwhitney(groups: dict, alpha: float = 0.05):
+    """
+    对多组数据进行 Mann-Whitney U 两两检验，并做 Bonferroni 校正。
+
+    Parameters
+    ----------
+    groups : dict
+        {组标签: 收益率序列}
+    alpha : float
+        显著性水平（校正前）
+
+    Returns
+    -------
+    list[dict]
+        每对检验的结果列表
+    """
+    keys = sorted(groups.keys())
+    pairs = list(combinations(keys, 2))
+    n_tests = len(pairs)
+    corrected_alpha = alpha / n_tests if n_tests > 0 else alpha
+
+    results = []
+    for k1, k2 in pairs:
+        g1, g2 = groups[k1].dropna(), groups[k2].dropna()
+        if len(g1) < 3 or len(g2) < 3:
+            continue
+        stat, pval = stats.mannwhitneyu(g1, g2, alternative='two-sided')
+        results.append({
+            'group1': k1,
+            'group2': k2,
+            'U_stat': stat,
+            'p_value': pval,
+            'p_corrected': min(pval * n_tests, 1.0),  # Bonferroni 校正
+            'significant': pval * n_tests < alpha,
+            'corrected_alpha': corrected_alpha,
+        })
+    return results
+
+
+def _kruskal_wallis_test(groups: dict):
+    """
+    Kruskal-Wallis H 检验（非参数单因素检验）。
+
+    Parameters
+    ----------
+    groups : dict
+        {组标签: 收益率序列}
+
+    Returns
+    -------
+    dict
+        包含 H 统计量、p 值等
+    """
+    valid_groups = [g.dropna().values for g in groups.values() if len(g.dropna()) >= 3]
+    if len(valid_groups) < 2:
+        return {'H_stat': np.nan, 'p_value': np.nan, 'n_groups': len(valid_groups)}
+
+    h_stat, p_val = stats.kruskal(*valid_groups)
+    return {'H_stat': h_stat, 'p_value': p_val, 'n_groups': len(valid_groups)}
+
+
+# --------------------------------------------------------------------------
+# 1. 星期效应分析
+# --------------------------------------------------------------------------
+def analyze_day_of_week(df: pd.DataFrame, output_dir: Path):
+    """
+    分析日收益率的星期效应。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（需含 log_return 列，DatetimeIndex 索引）
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "=" * 70)
+    print("【星期效应分析】Day-of-Week Effect")
+    print("=" * 70)
+
+    df = df.dropna(subset=['log_return']).copy()
+    df['weekday'] = df.index.dayofweek  # 0=周一, 6=周日
+
+    # --- 描述性统计 ---
+    groups = {wd: df.loc[df['weekday'] == wd, 'log_return'] for wd in range(7)}
+
+    print("\n--- 各星期对数收益率统计 ---")
+    stats_rows = []
+    for wd in range(7):
+        g = groups[wd]
+        row = {
+            '星期': WEEKDAY_NAMES_CN[wd],
+            '样本量': len(g),
+            '均值': g.mean(),
+            '中位数': g.median(),
+            '标准差': g.std(),
+            '偏度': g.skew(),
+            '峰度': g.kurtosis(),
+        }
+        stats_rows.append(row)
+    stats_df = pd.DataFrame(stats_rows)
+    print(stats_df.to_string(index=False, float_format='{:.6f}'.format))
+
+    # --- Kruskal-Wallis 检验 ---
+    kw_result = _kruskal_wallis_test(groups)
+    print(f"\nKruskal-Wallis H 检验: H={kw_result['H_stat']:.4f}, "
+          f"p={kw_result['p_value']:.6f}")
+    if kw_result['p_value'] < 0.05:
+        print("  => 在 5% 显著性水平下，各星期收益率存在显著差异")
+    else:
+        print("  => 在 5% 显著性水平下，各星期收益率无显著差异")
+
+    # --- Mann-Whitney U 两两检验 (Bonferroni 校正) ---
+    pairwise = _bonferroni_pairwise_mannwhitney(groups)
+    sig_pairs = [p for p in pairwise if p['significant']]
+    print(f"\nMann-Whitney U 两两检验 (Bonferroni 校正, {len(pairwise)} 对比较):")
+    if sig_pairs:
+        for p in sig_pairs:
+            print(f"  {WEEKDAY_NAMES_CN[p['group1']]} vs {WEEKDAY_NAMES_CN[p['group2']]}: "
+                  f"U={p['U_stat']:.1f}, p_raw={p['p_value']:.6f}, "
+                  f"p_corrected={p['p_corrected']:.6f} *")
+    else:
+        print("  无显著差异的配对（校正后）")
+
+    # --- 可视化: 箱线图 ---
+    fig, axes = plt.subplots(1, 2, figsize=(14, 6))
+
+    # 箱线图
+    box_data = [groups[wd].values for wd in range(7)]
+    bp = axes[0].boxplot(box_data, labels=[WEEKDAY_NAMES_CN[i] for i in range(7)],
+                         patch_artist=True, showfliers=False, showmeans=True,
+                         meanprops=dict(marker='D', markerfacecolor='red', markersize=5))
+    colors = plt.cm.Set3(np.linspace(0, 1, 7))
+    for patch, color in zip(bp['boxes'], colors):
+        patch.set_facecolor(color)
+    axes[0].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[0].set_title('BTC 日收益率 - 星期效应（箱线图）', fontsize=13)
+    axes[0].set_ylabel('对数收益率')
+    axes[0].set_xlabel('星期')
+
+    # 均值柱状图
+    means = [groups[wd].mean() for wd in range(7)]
+    sems = [groups[wd].sem() for wd in range(7)]
+    bar_colors = ['#2ecc71' if m > 0 else '#e74c3c' for m in means]
+    axes[1].bar(range(7), means, yerr=sems, color=bar_colors,
+                alpha=0.8, capsize=3, edgecolor='black', linewidth=0.5)
+    axes[1].set_xticks(range(7))
+    axes[1].set_xticklabels([WEEKDAY_NAMES_CN[i] for i in range(7)])
+    axes[1].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[1].set_title('BTC 日均收益率 - 星期效应（均值±SE）', fontsize=13)
+    axes[1].set_ylabel('平均对数收益率')
+    axes[1].set_xlabel('星期')
+
+    plt.tight_layout()
+    fig_path = output_dir / 'calendar_weekday_effect.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+
+# --------------------------------------------------------------------------
+# 2. 月份效应分析
+# --------------------------------------------------------------------------
+def analyze_month_of_year(df: pd.DataFrame, output_dir: Path):
+    """
+    分析日收益率的月份效应，并绘制年×月热力图。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（需含 log_return 列）
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "=" * 70)
+    print("【月份效应分析】Month-of-Year Effect")
+    print("=" * 70)
+
+    df = df.dropna(subset=['log_return']).copy()
+    df['month'] = df.index.month
+    df['year'] = df.index.year
+
+    # --- 描述性统计 ---
+    groups = {m: df.loc[df['month'] == m, 'log_return'] for m in range(1, 13)}
+
+    print("\n--- 各月份对数收益率统计 ---")
+    stats_rows = []
+    for m in range(1, 13):
+        g = groups[m]
+        row = {
+            '月份': MONTH_NAMES_CN[m],
+            '样本量': len(g),
+            '均值': g.mean(),
+            '中位数': g.median(),
+            '标准差': g.std(),
+        }
+        stats_rows.append(row)
+    stats_df = pd.DataFrame(stats_rows)
+    print(stats_df.to_string(index=False, float_format='{:.6f}'.format))
+
+    # --- Kruskal-Wallis 检验 ---
+    kw_result = _kruskal_wallis_test(groups)
+    print(f"\nKruskal-Wallis H 检验: H={kw_result['H_stat']:.4f}, "
+          f"p={kw_result['p_value']:.6f}")
+    if kw_result['p_value'] < 0.05:
+        print("  => 在 5% 显著性水平下，各月份收益率存在显著差异")
+    else:
+        print("  => 在 5% 显著性水平下，各月份收益率无显著差异")
+
+    # --- Mann-Whitney U 两两检验 (Bonferroni 校正) ---
+    pairwise = _bonferroni_pairwise_mannwhitney(groups)
+    sig_pairs = [p for p in pairwise if p['significant']]
+    print(f"\nMann-Whitney U 两两检验 (Bonferroni 校正, {len(pairwise)} 对比较):")
+    if sig_pairs:
+        for p in sig_pairs:
+            print(f"  {MONTH_NAMES_CN[p['group1']]} vs {MONTH_NAMES_CN[p['group2']]}: "
+                  f"U={p['U_stat']:.1f}, p_raw={p['p_value']:.6f}, "
+                  f"p_corrected={p['p_corrected']:.6f} *")
+    else:
+        print("  无显著差异的配对（校正后）")
+
+    # --- 可视化 ---
+    fig, axes = plt.subplots(1, 2, figsize=(16, 6))
+
+    # 均值柱状图
+    means = [groups[m].mean() for m in range(1, 13)]
+    sems = [groups[m].sem() for m in range(1, 13)]
+    bar_colors = ['#2ecc71' if m > 0 else '#e74c3c' for m in means]
+    axes[0].bar(range(1, 13), means, yerr=sems, color=bar_colors,
+                alpha=0.8, capsize=3, edgecolor='black', linewidth=0.5)
+    axes[0].set_xticks(range(1, 13))
+    axes[0].set_xticklabels([MONTH_NAMES_EN[i] for i in range(1, 13)])
+    axes[0].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[0].set_title('BTC 月均收益率（均值±SE）', fontsize=13)
+    axes[0].set_ylabel('平均对数收益率')
+    axes[0].set_xlabel('月份')
+
+    # 年×月 热力图：每月累计收益率
+    monthly_returns = df.groupby(['year', 'month'])['log_return'].sum().unstack(fill_value=np.nan)
+    monthly_returns.columns = [MONTH_NAMES_EN[c] for c in monthly_returns.columns]
+    sns.heatmap(monthly_returns, annot=True, fmt='.3f', cmap='RdYlGn', center=0,
+                linewidths=0.5, ax=axes[1], cbar_kws={'label': '累计对数收益率'})
+    axes[1].set_title('BTC 年×月 累计对数收益率热力图', fontsize=13)
+    axes[1].set_ylabel('年份')
+    axes[1].set_xlabel('月份')
+
+    plt.tight_layout()
+    fig_path = output_dir / 'calendar_month_effect.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+
+# --------------------------------------------------------------------------
+# 3. 小时效应分析（1h 数据）
+# --------------------------------------------------------------------------
+def analyze_hour_of_day(df_hourly: pd.DataFrame, output_dir: Path):
+    """
+    分析小时级别收益率与成交量的日内效应。
+
+    Parameters
+    ----------
+    df_hourly : pd.DataFrame
+        小时线数据（需含 close、volume 列，DatetimeIndex 索引）
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "=" * 70)
+    print("【小时效应分析】Hour-of-Day Effect")
+    print("=" * 70)
+
+    df = df_hourly.copy()
+    # 计算小时收益率
+    df['log_return'] = np.log(df['close'] / df['close'].shift(1))
+    df = df.dropna(subset=['log_return'])
+    df['hour'] = df.index.hour
+
+    # --- 描述性统计 ---
+    groups_ret = {h: df.loc[df['hour'] == h, 'log_return'] for h in range(24)}
+    groups_vol = {h: df.loc[df['hour'] == h, 'volume'] for h in range(24)}
+
+    print("\n--- 各小时对数收益率与成交量统计 ---")
+    stats_rows = []
+    for h in range(24):
+        gr = groups_ret[h]
+        gv = groups_vol[h]
+        row = {
+            '小时(UTC)': f'{h:02d}:00',
+            '样本量': len(gr),
+            '收益率均值': gr.mean(),
+            '收益率中位数': gr.median(),
+            '收益率标准差': gr.std(),
+            '成交量均值': gv.mean(),
+        }
+        stats_rows.append(row)
+    stats_df = pd.DataFrame(stats_rows)
+    print(stats_df.to_string(index=False, float_format='{:.6f}'.format))
+
+    # --- Kruskal-Wallis 检验 (收益率) ---
+    kw_ret = _kruskal_wallis_test(groups_ret)
+    print(f"\n收益率 Kruskal-Wallis H 检验: H={kw_ret['H_stat']:.4f}, "
+          f"p={kw_ret['p_value']:.6f}")
+    if kw_ret['p_value'] < 0.05:
+        print("  => 在 5% 显著性水平下，各小时收益率存在显著差异")
+    else:
+        print("  => 在 5% 显著性水平下，各小时收益率无显著差异")
+
+    # --- Kruskal-Wallis 检验 (成交量) ---
+    kw_vol = _kruskal_wallis_test(groups_vol)
+    print(f"\n成交量 Kruskal-Wallis H 检验: H={kw_vol['H_stat']:.4f}, "
+          f"p={kw_vol['p_value']:.6f}")
+    if kw_vol['p_value'] < 0.05:
+        print("  => 在 5% 显著性水平下，各小时成交量存在显著差异")
+    else:
+        print("  => 在 5% 显著性水平下，各小时成交量无显著差异")
+
+    # --- 可视化 ---
+    fig, axes = plt.subplots(2, 1, figsize=(14, 10))
+
+    hours = list(range(24))
+    hour_labels = [f'{h:02d}' for h in hours]
+
+    # 收益率
+    ret_means = [groups_ret[h].mean() for h in hours]
+    ret_sems = [groups_ret[h].sem() for h in hours]
+    bar_colors_ret = ['#2ecc71' if m > 0 else '#e74c3c' for m in ret_means]
+    axes[0].bar(hours, ret_means, yerr=ret_sems, color=bar_colors_ret,
+                alpha=0.8, capsize=2, edgecolor='black', linewidth=0.3)
+    axes[0].set_xticks(hours)
+    axes[0].set_xticklabels(hour_labels)
+    axes[0].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[0].set_title('BTC 小时均收益率 (UTC, 均值±SE)', fontsize=13)
+    axes[0].set_ylabel('平均对数收益率')
+    axes[0].set_xlabel('小时 (UTC)')
+
+    # 成交量
+    vol_means = [groups_vol[h].mean() for h in hours]
+    axes[1].bar(hours, vol_means, color='steelblue', alpha=0.8,
+                edgecolor='black', linewidth=0.3)
+    axes[1].set_xticks(hours)
+    axes[1].set_xticklabels(hour_labels)
+    axes[1].set_title('BTC 小时均成交量 (UTC)', fontsize=13)
+    axes[1].set_ylabel('平均成交量 (BTC)')
+    axes[1].set_xlabel('小时 (UTC)')
+    axes[1].yaxis.set_major_formatter(mticker.FuncFormatter(lambda x, _: f'{x:,.0f}'))
+
+    plt.tight_layout()
+    fig_path = output_dir / 'calendar_hour_effect.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+
+# --------------------------------------------------------------------------
+# 4. 季度效应 & 月初月末效应
+# --------------------------------------------------------------------------
+def analyze_quarter_and_month_boundary(df: pd.DataFrame, output_dir: Path):
+    """
+    分析季度效应，以及每月前5日/后5日的收益率差异。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（需含 log_return 列）
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "=" * 70)
+    print("【季度效应 & 月初/月末效应分析】")
+    print("=" * 70)
+
+    df = df.dropna(subset=['log_return']).copy()
+    df['quarter'] = df.index.quarter
+    df['month'] = df.index.month
+    df['day'] = df.index.day
+
+    # ========== 季度效应 ==========
+    groups_q = {q: df.loc[df['quarter'] == q, 'log_return'] for q in range(1, 5)}
+
+    print("\n--- 各季度对数收益率统计 ---")
+    quarter_names = {1: 'Q1', 2: 'Q2', 3: 'Q3', 4: 'Q4'}
+    for q in range(1, 5):
+        g = groups_q[q]
+        print(f"  {quarter_names[q]}: 均值={g.mean():.6f}, 中位数={g.median():.6f}, "
+              f"标准差={g.std():.6f}, 样本量={len(g)}")
+
+    kw_q = _kruskal_wallis_test(groups_q)
+    print(f"\n季度 Kruskal-Wallis H 检验: H={kw_q['H_stat']:.4f}, p={kw_q['p_value']:.6f}")
+    if kw_q['p_value'] < 0.05:
+        print("  => 在 5% 显著性水平下，各季度收益率存在显著差异")
+    else:
+        print("  => 在 5% 显著性水平下，各季度收益率无显著差异")
+
+    # 季度两两比较
+    pairwise_q = _bonferroni_pairwise_mannwhitney(groups_q)
+    sig_q = [p for p in pairwise_q if p['significant']]
+    if sig_q:
+        print(f"\n季度两两检验 (Bonferroni 校正, {len(pairwise_q)} 对):")
+        for p in sig_q:
+            print(f"  {quarter_names[p['group1']]} vs {quarter_names[p['group2']]}: "
+                  f"U={p['U_stat']:.1f}, p_corrected={p['p_corrected']:.6f} *")
+
+    # ========== 月初/月末效应 ==========
+    # 判断每月最后5天：通过计算每个日期距当月末的天数
+    from pandas.tseries.offsets import MonthEnd
+    df['month_end'] = df.index + MonthEnd(0)  # 当月最后一天
+    df['days_to_end'] = (df['month_end'] - df.index).dt.days
+
+    # 月初前5天 vs 月末后5天
+    mask_start = df['day'] <= 5
+    mask_end = df['days_to_end'] < 5  # 距离月末不到5天（即最后5天）
+
+    ret_start = df.loc[mask_start, 'log_return']
+    ret_end = df.loc[mask_end, 'log_return']
+    ret_mid = df.loc[~mask_start & ~mask_end, 'log_return']
+
+    print("\n--- 月初 / 月中 / 月末 收益率统计 ---")
+    for label, data in [('月初(前5日)', ret_start), ('月中', ret_mid), ('月末(后5日)', ret_end)]:
+        print(f"  {label}: 均值={data.mean():.6f}, 中位数={data.median():.6f}, "
+              f"标准差={data.std():.6f}, 样本量={len(data)}")
+
+    # Mann-Whitney U 检验：月初 vs 月末
+    if len(ret_start) >= 3 and len(ret_end) >= 3:
+        u_stat, p_val = stats.mannwhitneyu(ret_start, ret_end, alternative='two-sided')
+        print(f"\n月初 vs 月末 Mann-Whitney U 检验: U={u_stat:.1f}, p={p_val:.6f}")
+        if p_val < 0.05:
+            print("  => 在 5% 显著性水平下，月初与月末收益率存在显著差异")
+        else:
+            print("  => 在 5% 显著性水平下，月初与月末收益率无显著差异")
+
+    # --- 可视化 ---
+    fig, axes = plt.subplots(1, 2, figsize=(14, 6))
+
+    # 季度柱状图
+    q_means = [groups_q[q].mean() for q in range(1, 5)]
+    q_sems = [groups_q[q].sem() for q in range(1, 5)]
+    q_colors = ['#2ecc71' if m > 0 else '#e74c3c' for m in q_means]
+    axes[0].bar(range(1, 5), q_means, yerr=q_sems, color=q_colors,
+                alpha=0.8, capsize=4, edgecolor='black', linewidth=0.5)
+    axes[0].set_xticks(range(1, 5))
+    axes[0].set_xticklabels(['Q1', 'Q2', 'Q3', 'Q4'])
+    axes[0].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[0].set_title('BTC 季度均收益率（均值±SE）', fontsize=13)
+    axes[0].set_ylabel('平均对数收益率')
+    axes[0].set_xlabel('季度')
+
+    # 月初/月中/月末 柱状图
+    boundary_means = [ret_start.mean(), ret_mid.mean(), ret_end.mean()]
+    boundary_sems = [ret_start.sem(), ret_mid.sem(), ret_end.sem()]
+    boundary_colors = ['#3498db', '#95a5a6', '#e67e22']
+    axes[1].bar(range(3), boundary_means, yerr=boundary_sems, color=boundary_colors,
+                alpha=0.8, capsize=4, edgecolor='black', linewidth=0.5)
+    axes[1].set_xticks(range(3))
+    axes[1].set_xticklabels(['月初(前5日)', '月中', '月末(后5日)'])
+    axes[1].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    axes[1].set_title('BTC 月初/月中/月末 均收益率（均值±SE）', fontsize=13)
+    axes[1].set_ylabel('平均对数收益率')
+
+    plt.tight_layout()
+    fig_path = output_dir / 'calendar_quarter_boundary_effect.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+    # 清理临时列
+    df.drop(columns=['month_end', 'days_to_end'], inplace=True, errors='ignore')
+
+
+# --------------------------------------------------------------------------
+# 主入口
+# --------------------------------------------------------------------------
+def run_calendar_analysis(
+    df: pd.DataFrame,
+    df_hourly: pd.DataFrame = None,
+    output_dir: str = 'output/calendar',
+):
+    """
+    日历效应分析主入口。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据，已通过 add_derived_features 添加衍生特征（含 log_return 列）
+    df_hourly : pd.DataFrame, optional
+        小时线原始数据（含 close、volume 列）。若为 None 则跳过小时效应分析。
+    output_dir : str or Path
+        输出目录
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("\n" + "#" * 70)
+    print("#  BTC 日历效应分析 (Calendar Effects Analysis)")
+    print("#" * 70)
+
+    # 1. 星期效应
+    analyze_day_of_week(df, output_dir)
+
+    # 2. 月份效应
+    analyze_month_of_year(df, output_dir)
+
+    # 3. 小时效应（若有小时数据）
+    if df_hourly is not None and len(df_hourly) > 0:
+        analyze_hour_of_day(df_hourly, output_dir)
+    else:
+        print("\n[跳过] 小时效应分析：未提供小时数据 (df_hourly is None)")
+
+    # 4. 季度 & 月初月末效应
+    analyze_quarter_and_month_boundary(df, output_dir)
+
+    print("\n" + "#" * 70)
+    print("#  日历效应分析完成")
+    print("#" * 70)
+
+
+# --------------------------------------------------------------------------
+# 可独立运行
+# --------------------------------------------------------------------------
+if __name__ == '__main__':
+    from data_loader import load_daily, load_hourly
+    from preprocessing import add_derived_features
+
+    # 加载数据
+    df_daily = load_daily()
+    df_daily = add_derived_features(df_daily)
+
+    try:
+        df_hourly = load_hourly()
+    except Exception as e:
+        print(f"[警告] 加载小时数据失败: {e}")
+        df_hourly = None
+
+    run_calendar_analysis(df_daily, df_hourly, output_dir='output/calendar')
diff --git a/src/causality.py b/src/causality.py
new file mode 100644
index 0000000..56b7a95
--- /dev/null
+++ b/src/causality.py
@@ -0,0 +1,615 @@
+"""Granger 因果检验模块
+
+分析内容：
+- 双向 Granger 因果检验（5 对变量，各 5 个滞后阶数）
+- 跨时间尺度因果检验（小时级聚合特征 → 日级收益率）
+- Bonferroni 多重检验校正
+- 可视化：p 值热力图、显著因果关系网络图
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+import warnings
+from pathlib import Path
+from typing import Optional, List, Tuple, Dict
+
+from statsmodels.tsa.stattools import grangercausalitytests
+
+from src.data_loader import load_hourly
+from src.preprocessing import log_returns, add_derived_features
+
+
+# ============================================================
+# 1. 因果检验对定义
+# ============================================================
+
+# 5 对双向因果关系，每对 (cause, effect)
+CAUSALITY_PAIRS = [
+    ('volume', 'log_return'),
+    ('log_return', 'volume'),
+    ('abs_return', 'volume'),
+    ('volume', 'abs_return'),
+    ('taker_buy_ratio', 'log_return'),
+    ('log_return', 'taker_buy_ratio'),
+    ('squared_return', 'volume'),
+    ('volume', 'squared_return'),
+    ('range_pct', 'log_return'),
+    ('log_return', 'range_pct'),
+]
+
+# 测试的滞后阶数
+TEST_LAGS = [1, 2, 3, 5, 10]
+
+
+# ============================================================
+# 2. 单对 Granger 因果检验
+# ============================================================
+
+def granger_test_pair(
+    df: pd.DataFrame,
+    cause: str,
+    effect: str,
+    max_lag: int = 10,
+    test_lags: Optional[List[int]] = None,
+) -> List[Dict]:
+    """
+    对指定的 (cause → effect) 方向执行 Granger 因果检验
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        包含 cause 和 effect 列的数据
+    cause : str
+        原因变量列名
+    effect : str
+        结果变量列名
+    max_lag : int
+        最大滞后阶数
+    test_lags : list of int, optional
+        需要测试的滞后阶数列表
+
+    Returns
+    -------
+    list of dict
+        每个滞后阶数的检验结果
+    """
+    if test_lags is None:
+        test_lags = TEST_LAGS
+
+    # grangercausalitytests 要求: 第一列是 effect，第二列是 cause
+    data = df[[effect, cause]].dropna()
+
+    if len(data) < max_lag + 20:
+        print(f"  [警告] {cause} → {effect}: 样本量不足 ({len(data)})，跳过")
+        return []
+
+    results = []
+    try:
+        # 执行检验，maxlag 取最大值，一次获取所有滞后
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore")
+            gc_results = grangercausalitytests(data, maxlag=max_lag, verbose=False)
+
+        # 提取指定滞后阶数的结果
+        for lag in test_lags:
+            if lag > max_lag:
+                continue
+            test_result = gc_results[lag]
+            # 取 ssr_ftest 的 F 统计量和 p 值
+            f_stat = test_result[0]['ssr_ftest'][0]
+            p_value = test_result[0]['ssr_ftest'][1]
+
+            results.append({
+                'cause': cause,
+                'effect': effect,
+                'lag': lag,
+                'f_stat': f_stat,
+                'p_value': p_value,
+            })
+    except Exception as e:
+        print(f"  [错误] {cause} → {effect}: {e}")
+
+    return results
+
+
+# ============================================================
+# 3. 批量因果检验
+# ============================================================
+
+def run_all_granger_tests(
+    df: pd.DataFrame,
+    pairs: Optional[List[Tuple[str, str]]] = None,
+    test_lags: Optional[List[int]] = None,
+) -> pd.DataFrame:
+    """
+    对所有变量对执行双向 Granger 因果检验
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        包含衍生特征的日线数据
+    pairs : list of tuple, optional
+        变量对列表 [(cause, effect), ...]
+    test_lags : list of tuple, optional
+        滞后阶数列表
+
+    Returns
+    -------
+    pd.DataFrame
+        所有检验结果汇总表
+    """
+    if pairs is None:
+        pairs = CAUSALITY_PAIRS
+    if test_lags is None:
+        test_lags = TEST_LAGS
+
+    max_lag = max(test_lags)
+    all_results = []
+
+    for cause, effect in pairs:
+        if cause not in df.columns or effect not in df.columns:
+            print(f"  [警告] 列 {cause} 或 {effect} 不存在，跳过")
+            continue
+        pair_results = granger_test_pair(df, cause, effect, max_lag=max_lag, test_lags=test_lags)
+        all_results.extend(pair_results)
+
+    results_df = pd.DataFrame(all_results)
+    return results_df
+
+
+# ============================================================
+# 4. Bonferroni 校正
+# ============================================================
+
+def apply_bonferroni(results_df: pd.DataFrame, alpha: float = 0.05) -> pd.DataFrame:
+    """
+    对 Granger 检验结果应用 Bonferroni 多重检验校正
+
+    Parameters
+    ----------
+    results_df : pd.DataFrame
+        包含 p_value 列的检验结果
+    alpha : float
+        原始显著性水平
+
+    Returns
+    -------
+    pd.DataFrame
+        添加了校正后显著性判断的结果
+    """
+    n_tests = len(results_df)
+    if n_tests == 0:
+        return results_df
+
+    out = results_df.copy()
+    # Bonferroni 校正阈值
+    corrected_alpha = alpha / n_tests
+    out['bonferroni_alpha'] = corrected_alpha
+    out['significant_raw'] = out['p_value'] < alpha
+    out['significant_corrected'] = out['p_value'] < corrected_alpha
+
+    return out
+
+
+# ============================================================
+# 5. 跨时间尺度因果检验
+# ============================================================
+
+def cross_timeframe_causality(
+    daily_df: pd.DataFrame,
+    test_lags: Optional[List[int]] = None,
+) -> pd.DataFrame:
+    """
+    检验小时级聚合特征是否 Granger 因果于日级收益率
+
+    具体步骤：
+    1. 加载小时级数据
+    2. 计算小时级波动率和成交量的日内聚合指标
+    3. 与日线收益率合并
+    4. 执行 Granger 因果检验
+
+    Parameters
+    ----------
+    daily_df : pd.DataFrame
+        日线数据（含 log_return）
+    test_lags : list of int, optional
+        滞后阶数列表
+
+    Returns
+    -------
+    pd.DataFrame
+        跨时间尺度因果检验结果
+    """
+    if test_lags is None:
+        test_lags = TEST_LAGS
+
+    # 加载小时数据
+    try:
+        hourly_raw = load_hourly()
+    except (FileNotFoundError, Exception) as e:
+        print(f"  [警告] 无法加载小时级数据，跳过跨时间尺度因果检验: {e}")
+        return pd.DataFrame()
+
+    # 计算小时级衍生特征
+    hourly = add_derived_features(hourly_raw)
+
+    # 日内聚合：按日期聚合小时数据
+    hourly['date'] = hourly.index.date
+    agg_dict = {}
+
+    # 小时级日内波动率（对数收益率标准差）
+    if 'log_return' in hourly.columns:
+        hourly_vol = hourly.groupby('date')['log_return'].std()
+        hourly_vol.name = 'hourly_intraday_vol'
+        agg_dict['hourly_intraday_vol'] = hourly_vol
+
+    # 小时级日内成交量总和
+    if 'volume' in hourly.columns:
+        hourly_volume = hourly.groupby('date')['volume'].sum()
+        hourly_volume.name = 'hourly_volume_sum'
+        agg_dict['hourly_volume_sum'] = hourly_volume
+
+    # 小时级日内最大绝对收益率
+    if 'abs_return' in hourly.columns:
+        hourly_max_abs = hourly.groupby('date')['abs_return'].max()
+        hourly_max_abs.name = 'hourly_max_abs_return'
+        agg_dict['hourly_max_abs_return'] = hourly_max_abs
+
+    if not agg_dict:
+        print("  [警告] 小时级聚合特征为空，跳过")
+        return pd.DataFrame()
+
+    # 合并聚合结果
+    hourly_agg = pd.DataFrame(agg_dict)
+    hourly_agg.index = pd.to_datetime(hourly_agg.index)
+
+    # 与日线数据合并
+    daily_for_merge = daily_df[['log_return']].copy()
+    merged = daily_for_merge.join(hourly_agg, how='inner')
+
+    print(f"  [跨时间尺度] 合并后样本数: {len(merged)}")
+
+    # 对每个小时级聚合特征检验 → 日级收益率
+    cross_pairs = []
+    for col in agg_dict.keys():
+        cross_pairs.append((col, 'log_return'))
+
+    max_lag = max(test_lags)
+    all_results = []
+    for cause, effect in cross_pairs:
+        pair_results = granger_test_pair(merged, cause, effect, max_lag=max_lag, test_lags=test_lags)
+        all_results.extend(pair_results)
+
+    results_df = pd.DataFrame(all_results)
+    return results_df
+
+
+# ============================================================
+# 6. 可视化：p 值热力图
+# ============================================================
+
+def plot_pvalue_heatmap(results_df: pd.DataFrame, output_dir: Path):
+    """
+    绘制 p 值热力图（变量对 x 滞后阶数）
+
+    Parameters
+    ----------
+    results_df : pd.DataFrame
+        因果检验结果
+    output_dir : Path
+        输出目录
+    """
+    if results_df.empty:
+        print("  [警告] 无检验结果，跳过热力图绘制")
+        return
+
+    # 构建标签
+    results_df = results_df.copy()
+    results_df['pair'] = results_df['cause'] + ' → ' + results_df['effect']
+
+    # 构建 pivot table: 行=pair, 列=lag
+    pivot = results_df.pivot_table(index='pair', columns='lag', values='p_value')
+
+    fig, ax = plt.subplots(figsize=(12, max(6, len(pivot) * 0.5)))
+
+    # 绘制热力图
+    im = ax.imshow(-np.log10(pivot.values + 1e-300), cmap='RdYlGn_r', aspect='auto')
+
+    # 设置坐标轴
+    ax.set_xticks(range(len(pivot.columns)))
+    ax.set_xticklabels([f'Lag {c}' for c in pivot.columns], fontsize=10)
+    ax.set_yticks(range(len(pivot.index)))
+    ax.set_yticklabels(pivot.index, fontsize=9)
+
+    # 在每个格子中标注 p 值
+    for i in range(len(pivot.index)):
+        for j in range(len(pivot.columns)):
+            val = pivot.values[i, j]
+            if np.isnan(val):
+                text = 'N/A'
+            else:
+                text = f'{val:.4f}'
+            color = 'white' if -np.log10(val + 1e-300) > 2 else 'black'
+            ax.text(j, i, text, ha='center', va='center', fontsize=8, color=color)
+
+    # Bonferroni 校正线
+    n_tests = len(results_df)
+    if n_tests > 0:
+        bonf_alpha = 0.05 / n_tests
+        ax.set_title(
+            f'Granger 因果检验 p 值热力图 (-log10)\n'
+            f'Bonferroni 校正阈值: {bonf_alpha:.6f} (共 {n_tests} 次检验)',
+            fontsize=13
+        )
+
+    cbar = fig.colorbar(im, ax=ax, shrink=0.8)
+    cbar.set_label('-log10(p-value)', fontsize=11)
+
+    fig.savefig(output_dir / 'granger_pvalue_heatmap.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'granger_pvalue_heatmap.png'}")
+
+
+# ============================================================
+# 7. 可视化：因果关系网络图
+# ============================================================
+
+def plot_causal_network(results_df: pd.DataFrame, output_dir: Path, alpha: float = 0.05):
+    """
+    绘制显著因果关系网络图（matplotlib 箭头实现）
+
+    仅显示 Bonferroni 校正后仍显著的因果对（取最优滞后的结果）
+
+    Parameters
+    ----------
+    results_df : pd.DataFrame
+        含 significant_corrected 列的检验结果
+    output_dir : Path
+        输出目录
+    alpha : float
+        显著性水平
+    """
+    if results_df.empty or 'significant_corrected' not in results_df.columns:
+        print("  [警告] 无校正后结果，跳过网络图绘制")
+        return
+
+    # 筛选显著因果对（取每对中 p 值最小的滞后）
+    sig = results_df[results_df['significant_corrected']].copy()
+    if sig.empty:
+        print("  [信息] Bonferroni 校正后无显著因果关系，绘制空网络图")
+
+    # 对每对取最小 p 值
+    if not sig.empty:
+        sig_best = sig.loc[sig.groupby(['cause', 'effect'])['p_value'].idxmin()]
+    else:
+        sig_best = pd.DataFrame(columns=results_df.columns)
+
+    # 收集所有变量节点
+    all_vars = set()
+    for _, row in results_df.iterrows():
+        all_vars.add(row['cause'])
+        all_vars.add(row['effect'])
+    all_vars = sorted(all_vars)
+    n_vars = len(all_vars)
+
+    if n_vars == 0:
+        return
+
+    # 布局：圆形排列
+    angles = np.linspace(0, 2 * np.pi, n_vars, endpoint=False)
+    positions = {v: (np.cos(a), np.sin(a)) for v, a in zip(all_vars, angles)}
+
+    fig, ax = plt.subplots(figsize=(10, 10))
+
+    # 绘制节点
+    for var, (x, y) in positions.items():
+        circle = plt.Circle((x, y), 0.12, color='steelblue', alpha=0.8)
+        ax.add_patch(circle)
+        ax.text(x, y, var, ha='center', va='center', fontsize=8,
+                fontweight='bold', color='white')
+
+    # 绘制显著因果箭头
+    for _, row in sig_best.iterrows():
+        cause_pos = positions[row['cause']]
+        effect_pos = positions[row['effect']]
+
+        # 计算起点和终点（缩短到节点边缘）
+        dx = effect_pos[0] - cause_pos[0]
+        dy = effect_pos[1] - cause_pos[1]
+        dist = np.sqrt(dx ** 2 + dy ** 2)
+        if dist < 0.01:
+            continue
+
+        # 缩短箭头到节点圆的边缘
+        shrink = 0.14
+        start_x = cause_pos[0] + shrink * dx / dist
+        start_y = cause_pos[1] + shrink * dy / dist
+        end_x = effect_pos[0] - shrink * dx / dist
+        end_y = effect_pos[1] - shrink * dy / dist
+
+        # 箭头粗细与 -log10(p) 相关
+        width = min(3.0, -np.log10(row['p_value'] + 1e-300) * 0.5)
+
+        ax.annotate(
+            '',
+            xy=(end_x, end_y),
+            xytext=(start_x, start_y),
+            arrowprops=dict(
+                arrowstyle='->', color='red', lw=width,
+                connectionstyle='arc3,rad=0.1',
+                mutation_scale=15,
+            ),
+        )
+        # 标注滞后阶数和 p 值
+        mid_x = (start_x + end_x) / 2
+        mid_y = (start_y + end_y) / 2
+        ax.text(mid_x, mid_y, f'lag={int(row["lag"])}\np={row["p_value"]:.2e}',
+                fontsize=7, ha='center', va='center',
+                bbox=dict(boxstyle='round,pad=0.2', facecolor='yellow', alpha=0.7))
+
+    n_sig = len(sig_best)
+    n_total = len(results_df)
+    ax.set_title(
+        f'Granger 因果关系网络 (Bonferroni 校正后)\n'
+        f'显著链接: {n_sig}/{n_total}',
+        fontsize=14
+    )
+    ax.set_xlim(-1.6, 1.6)
+    ax.set_ylim(-1.6, 1.6)
+    ax.set_aspect('equal')
+    ax.axis('off')
+
+    fig.savefig(output_dir / 'granger_causal_network.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] {output_dir / 'granger_causal_network.png'}")
+
+
+# ============================================================
+# 8. 结果打印
+# ============================================================
+
+def print_causality_results(results_df: pd.DataFrame):
+    """打印所有因果检验结果"""
+    if results_df.empty:
+        print("  [信息] 无检验结果")
+        return
+
+    print("\n" + "=" * 90)
+    print("Granger 因果检验结果明细")
+    print("=" * 90)
+    print(f"  {'因果方向':<40} {'滞后':>4} {'F统计量':>12} {'p值':>12} {'原始显著':>8} {'校正显著':>8}")
+    print("  " + "-" * 88)
+
+    for _, row in results_df.iterrows():
+        pair_label = f"{row['cause']} → {row['effect']}"
+        sig_raw = '***' if row.get('significant_raw', False) else ''
+        sig_corr = '***' if row.get('significant_corrected', False) else ''
+        print(f"  {pair_label:<40} {int(row['lag']):>4} "
+              f"{row['f_stat']:>12.4f} {row['p_value']:>12.6f} "
+              f"{sig_raw:>8} {sig_corr:>8}")
+
+    # 汇总统计
+    n_total = len(results_df)
+    n_sig_raw = results_df.get('significant_raw', pd.Series(dtype=bool)).sum()
+    n_sig_corr = results_df.get('significant_corrected', pd.Series(dtype=bool)).sum()
+
+    print(f"\n  汇总: 共 {n_total} 次检验")
+    print(f"    原始显著 (p < 0.05):     {n_sig_raw} ({n_sig_raw / n_total * 100:.1f}%)")
+    print(f"    Bonferroni 校正后显著:   {n_sig_corr} ({n_sig_corr / n_total * 100:.1f}%)")
+
+    if n_total > 0:
+        bonf_alpha = 0.05 / n_total
+        print(f"    Bonferroni 校正阈值:     {bonf_alpha:.6f}")
+
+
+# ============================================================
+# 9. 主入口
+# ============================================================
+
+def run_causality_analysis(
+    df: pd.DataFrame,
+    output_dir: str = "output/causality",
+) -> Dict:
+    """
+    Granger 因果检验主函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（已通过 add_derived_features 添加衍生特征）
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        包含所有检验结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 70)
+    print("BTC Granger 因果检验分析")
+    print("=" * 70)
+    print(f"数据范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"样本数量: {len(df)}")
+    print(f"测试滞后阶数: {TEST_LAGS}")
+    print(f"因果变量对数: {len(CAUSALITY_PAIRS)}")
+    print(f"总检验次数（含所有滞后）: {len(CAUSALITY_PAIRS) * len(TEST_LAGS)}")
+
+    # 设置中文字体
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    # --- 日线级 Granger 因果检验 ---
+    print("\n>>> [1/4] 执行日线级 Granger 因果检验...")
+    daily_results = run_all_granger_tests(df, pairs=CAUSALITY_PAIRS, test_lags=TEST_LAGS)
+
+    if not daily_results.empty:
+        daily_results = apply_bonferroni(daily_results, alpha=0.05)
+        print_causality_results(daily_results)
+    else:
+        print("  [警告] 日线级因果检验未产生结果")
+
+    # --- 跨时间尺度因果检验 ---
+    print("\n>>> [2/4] 执行跨时间尺度因果检验（小时 → 日线）...")
+    cross_results = cross_timeframe_causality(df, test_lags=TEST_LAGS)
+
+    if not cross_results.empty:
+        cross_results = apply_bonferroni(cross_results, alpha=0.05)
+        print("\n跨时间尺度因果检验结果:")
+        print_causality_results(cross_results)
+    else:
+        print("  [信息] 跨时间尺度因果检验无结果（可能小时数据不可用）")
+
+    # --- 合并所有结果用于可视化 ---
+    all_results = pd.concat([daily_results, cross_results], ignore_index=True)
+    if not all_results.empty and 'significant_corrected' not in all_results.columns:
+        all_results = apply_bonferroni(all_results, alpha=0.05)
+
+    # --- p 值热力图（仅日线级结果，避免混淆） ---
+    print("\n>>> [3/4] 绘制 p 值热力图...")
+    plot_pvalue_heatmap(daily_results, output_dir)
+
+    # --- 因果关系网络图 ---
+    print("\n>>> [4/4] 绘制因果关系网络图...")
+    # 使用所有结果（含跨时间尺度）
+    if not all_results.empty:
+        # 重新做一次 Bonferroni 校正（因为合并后总检验数增加）
+        all_corrected = apply_bonferroni(all_results.drop(
+            columns=['bonferroni_alpha', 'significant_raw', 'significant_corrected'],
+            errors='ignore'
+        ), alpha=0.05)
+        plot_causal_network(all_corrected, output_dir)
+    else:
+        print("  [警告] 无可用结果，跳过网络图")
+
+    print("\n" + "=" * 70)
+    print("Granger 因果检验分析完成！")
+    print(f"图表已保存至: {output_dir.resolve()}")
+    print("=" * 70)
+
+    return {
+        'daily_results': daily_results,
+        'cross_timeframe_results': cross_results,
+        'all_results': all_results,
+    }
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == '__main__':
+    from src.data_loader import load_daily
+    from src.preprocessing import add_derived_features
+
+    df = load_daily()
+    df = add_derived_features(df)
+    run_causality_analysis(df)
diff --git a/src/clustering.py b/src/clustering.py
new file mode 100644
index 0000000..9b39e9f
--- /dev/null
+++ b/src/clustering.py
@@ -0,0 +1,742 @@
+"""市场状态聚类与马尔可夫链分析模块
+
+基于K-Means、GMM、HDBSCAN对BTC日线特征进行聚类，
+构建状态转移矩阵并计算平稳分布。
+"""
+
+import warnings
+import numpy as np
+import pandas as pd
+import matplotlib
+matplotlib.use('Agg')
+import matplotlib.pyplot as plt
+import matplotlib.gridspec as gridspec
+from pathlib import Path
+from typing import Optional, Tuple, Dict, List
+
+from sklearn.preprocessing import StandardScaler
+from sklearn.cluster import KMeans
+from sklearn.mixture import GaussianMixture
+from sklearn.decomposition import PCA
+from sklearn.metrics import silhouette_score, silhouette_samples
+
+try:
+    import hdbscan
+    HAS_HDBSCAN = True
+except ImportError:
+    HAS_HDBSCAN = False
+    warnings.warn("hdbscan 未安装，将跳过 HDBSCAN 聚类。pip install hdbscan")
+
+
+# ============================================================
+# 特征工程
+# ============================================================
+
+FEATURE_COLS = [
+    "log_return", "abs_return", "vol_7d", "vol_30d",
+    "volume_ratio", "taker_buy_ratio", "range_pct", "body_pct",
+    "log_return_lag1", "log_return_lag2",
+]
+
+
+def _prepare_features(df: pd.DataFrame) -> Tuple[pd.DataFrame, np.ndarray, StandardScaler]:
+    """
+    准备聚类特征：添加滞后收益率、标准化、去除NaN行
+
+    Returns
+    -------
+    df_clean : 清洗后的DataFrame（保留索引用于后续映射）
+    X_scaled : 标准化后的特征矩阵
+    scaler   : 标准化器（可用于逆变换）
+    """
+    out = df.copy()
+
+    # 添加滞后收益率特征
+    out["log_return_lag1"] = out["log_return"].shift(1)
+    out["log_return_lag2"] = out["log_return"].shift(2)
+
+    # 只保留所需特征列，删除含NaN的行
+    df_feat = out[FEATURE_COLS].copy()
+    mask = df_feat.notna().all(axis=1)
+    df_clean = out.loc[mask].copy()
+    X_raw = df_feat.loc[mask].values
+
+    # Z-score标准化
+    scaler = StandardScaler()
+    X_scaled = scaler.fit_transform(X_raw)
+
+    print(f"[特征准备] 有效样本数: {X_scaled.shape[0]}, 特征维度: {X_scaled.shape[1]}")
+    return df_clean, X_scaled, scaler
+
+
+# ============================================================
+# K-Means 聚类
+# ============================================================
+
+def _run_kmeans(X: np.ndarray, k_range: List[int] = None) -> Tuple[int, np.ndarray, Dict]:
+    """
+    K-Means聚类，通过轮廓系数选择最优k
+
+    Returns
+    -------
+    best_k : 最优聚类数
+    labels : 最优k对应的聚类标签
+    info   : 包含每个k的轮廓系数、惯性等
+    """
+    if k_range is None:
+        k_range = [3, 4, 5, 6, 7]
+
+    results = {}
+    best_score = -1
+    best_k = k_range[0]
+    best_labels = None
+
+    print("\n" + "=" * 60)
+    print("K-Means 聚类分析")
+    print("=" * 60)
+
+    for k in k_range:
+        km = KMeans(n_clusters=k, n_init=20, max_iter=500, random_state=42)
+        labels = km.fit_predict(X)
+        sil = silhouette_score(X, labels)
+        inertia = km.inertia_
+        results[k] = {"silhouette": sil, "inertia": inertia, "labels": labels, "model": km}
+        print(f"  k={k}: 轮廓系数={sil:.4f}, 惯性={inertia:.1f}")
+
+        if sil > best_score:
+            best_score = sil
+            best_k = k
+            best_labels = labels
+
+    print(f"\n  >>> 最优 k = {best_k} (轮廓系数 = {best_score:.4f})")
+    return best_k, best_labels, results
+
+
+# ============================================================
+# GMM (高斯混合模型)
+# ============================================================
+
+def _run_gmm(X: np.ndarray, k_range: List[int] = None) -> Tuple[int, np.ndarray, Dict]:
+    """
+    GMM聚类，通过BIC选择最优组件数
+
+    Returns
+    -------
+    best_k : BIC最低的组件数
+    labels : 对应的聚类标签
+    info   : 每个k的BIC、AIC、标签等
+    """
+    if k_range is None:
+        k_range = [3, 4, 5, 6, 7]
+
+    results = {}
+    best_bic = np.inf
+    best_k = k_range[0]
+    best_labels = None
+
+    print("\n" + "=" * 60)
+    print("GMM (高斯混合模型) 聚类分析")
+    print("=" * 60)
+
+    for k in k_range:
+        gmm = GaussianMixture(n_components=k, covariance_type='full',
+                               n_init=5, max_iter=500, random_state=42)
+        gmm.fit(X)
+        labels = gmm.predict(X)
+        bic = gmm.bic(X)
+        aic = gmm.aic(X)
+        sil = silhouette_score(X, labels)
+        results[k] = {"bic": bic, "aic": aic, "silhouette": sil,
+                       "labels": labels, "model": gmm}
+        print(f"  k={k}: BIC={bic:.1f}, AIC={aic:.1f}, 轮廓系数={sil:.4f}")
+
+        if bic < best_bic:
+            best_bic = bic
+            best_k = k
+            best_labels = labels
+
+    print(f"\n  >>> 最优 k = {best_k} (BIC = {best_bic:.1f})")
+    return best_k, best_labels, results
+
+
+# ============================================================
+# HDBSCAN (密度聚类)
+# ============================================================
+
+def _run_hdbscan(X: np.ndarray) -> Tuple[np.ndarray, Dict]:
+    """
+    HDBSCAN密度聚类
+
+    Returns
+    -------
+    labels : 聚类标签 (-1表示噪声)
+    info   : 聚类统计信息
+    """
+    if not HAS_HDBSCAN:
+        print("\n[HDBSCAN] 跳过 - hdbscan 未安装")
+        return None, {}
+
+    print("\n" + "=" * 60)
+    print("HDBSCAN 密度聚类分析")
+    print("=" * 60)
+
+    clusterer = hdbscan.HDBSCAN(
+        min_cluster_size=30,
+        min_samples=10,
+        metric='euclidean',
+        cluster_selection_method='eom',
+    )
+    labels = clusterer.fit_predict(X)
+
+    n_clusters = len(set(labels)) - (1 if -1 in labels else 0)
+    n_noise = (labels == -1).sum()
+    noise_pct = n_noise / len(labels) * 100
+
+    info = {
+        "n_clusters": n_clusters,
+        "n_noise": n_noise,
+        "noise_pct": noise_pct,
+        "labels": labels,
+        "model": clusterer,
+    }
+
+    print(f"  聚类数: {n_clusters}")
+    print(f"  噪声点: {n_noise} ({noise_pct:.1f}%)")
+
+    # 排除噪声点后计算轮廓系数
+    if n_clusters >= 2:
+        mask = labels >= 0
+        if mask.sum() > n_clusters:
+            sil = silhouette_score(X[mask], labels[mask])
+            info["silhouette"] = sil
+            print(f"  轮廓系数(去噪): {sil:.4f}")
+
+    return labels, info
+
+
+# ============================================================
+# 聚类解释与标签映射
+# ============================================================
+
+# 状态标签定义
+STATE_LABELS = {
+    "sideways": "横盘整理",
+    "mild_up": "温和上涨",
+    "mild_down": "温和下跌",
+    "surge": "强势上涨",
+    "crash": "急剧下跌",
+    "high_vol": "高波动",
+    "low_vol": "低波动",
+}
+
+
+def _interpret_clusters(df_clean: pd.DataFrame, labels: np.ndarray,
+                        method_name: str = "K-Means") -> pd.DataFrame:
+    """
+    解释聚类结果：计算每个簇的特征均值，并自动标注状态名称
+
+    Returns
+    -------
+    cluster_desc : 每个聚类的特征均值表 + state_label列
+    """
+    df_work = df_clean.copy()
+    col_name = f"cluster_{method_name}"
+    df_work[col_name] = labels
+
+    # 计算每个聚类的特征均值
+    cluster_means = df_work.groupby(col_name)[FEATURE_COLS].mean()
+
+    print(f"\n{'=' * 60}")
+    print(f"{method_name} 聚类特征均值")
+    print("=" * 60)
+
+    # 自动标注状态
+    state_labels = {}
+    for cid in cluster_means.index:
+        row = cluster_means.loc[cid]
+        lr = row["log_return"]
+        vol = row["vol_7d"]
+        abs_r = row["abs_return"]
+
+        # 基于收益率和波动率的规则判断
+        if lr > 0.02 and abs_r > 0.02:
+            label = "surge"
+        elif lr < -0.02 and abs_r > 0.02:
+            label = "crash"
+        elif lr > 0.005:
+            label = "mild_up"
+        elif lr < -0.005:
+            label = "mild_down"
+        elif abs_r > 0.015 or vol > cluster_means["vol_7d"].median() * 1.5:
+            label = "high_vol"
+        else:
+            label = "sideways"
+
+        state_labels[cid] = label
+
+    cluster_means["state_label"] = pd.Series(state_labels)
+    cluster_means["state_cn"] = cluster_means["state_label"].map(STATE_LABELS)
+
+    # 统计每个聚类的样本数和占比
+    counts = df_work[col_name].value_counts().sort_index()
+    cluster_means["count"] = counts
+    cluster_means["pct"] = (counts / counts.sum() * 100).round(1)
+
+    for cid in cluster_means.index:
+        row = cluster_means.loc[cid]
+        print(f"\n  聚类 {cid} [{row['state_cn']}] (n={int(row['count'])}, {row['pct']:.1f}%)")
+        print(f"    log_return: {row['log_return']:.5f}, abs_return: {row['abs_return']:.5f}")
+        print(f"    vol_7d: {row['vol_7d']:.4f}, vol_30d: {row['vol_30d']:.4f}")
+        print(f"    volume_ratio: {row['volume_ratio']:.3f}, taker_buy_ratio: {row['taker_buy_ratio']:.4f}")
+        print(f"    range_pct: {row['range_pct']:.5f}, body_pct: {row['body_pct']:.5f}")
+
+    return cluster_means
+
+
+# ============================================================
+# 马尔可夫转移矩阵
+# ============================================================
+
+def _compute_transition_matrix(labels: np.ndarray) -> Tuple[np.ndarray, np.ndarray, np.ndarray]:
+    """
+    计算状态转移概率矩阵、平稳分布和平均持有时间
+
+    Parameters
+    ----------
+    labels : 时间序列的聚类标签
+
+    Returns
+    -------
+    trans_matrix : 转移概率矩阵 (n_states x n_states)
+    stationary   : 平稳分布向量
+    holding_time : 各状态平均持有时间
+    """
+    states = np.sort(np.unique(labels))
+    n_states = len(states)
+
+    # 状态映射到连续索引
+    state_to_idx = {s: i for i, s in enumerate(states)}
+
+    # 计数矩阵
+    count_matrix = np.zeros((n_states, n_states), dtype=np.float64)
+    for t in range(len(labels) - 1):
+        i = state_to_idx[labels[t]]
+        j = state_to_idx[labels[t + 1]]
+        count_matrix[i, j] += 1
+
+    # 转移概率矩阵（行归一化）
+    row_sums = count_matrix.sum(axis=1, keepdims=True)
+    row_sums[row_sums == 0] = 1  # 避免除零
+    trans_matrix = count_matrix / row_sums
+
+    # 平稳分布：求转移矩阵的左特征向量（特征值=1对应的）
+    # π * P = π  =>  P^T * π^T = π^T
+    eigenvalues, eigenvectors = np.linalg.eig(trans_matrix.T)
+
+    # 找最接近1的特征值对应的特征向量
+    idx = np.argmin(np.abs(eigenvalues - 1.0))
+    stationary = np.real(eigenvectors[:, idx])
+    stationary = stationary / stationary.sum()  # 归一化为概率
+
+    # 确保非负（数值误差可能导致微小负值）
+    stationary = np.abs(stationary)
+    stationary = stationary / stationary.sum()
+
+    # 平均持有时间 = 1 / (1 - p_ii)
+    diag = np.diag(trans_matrix)
+    holding_time = np.where(diag < 1.0, 1.0 / (1.0 - diag), np.inf)
+
+    return trans_matrix, stationary, holding_time
+
+
+def _print_markov_results(trans_matrix: np.ndarray, stationary: np.ndarray,
+                          holding_time: np.ndarray, cluster_desc: pd.DataFrame):
+    """打印马尔可夫链分析结果"""
+    states = cluster_desc.index.tolist()
+    state_names = cluster_desc["state_cn"].tolist()
+
+    print("\n" + "=" * 60)
+    print("马尔可夫链状态转移分析")
+    print("=" * 60)
+
+    # 转移概率矩阵
+    print("\n转移概率矩阵:")
+    header = "      " + "  ".join([f"  {state_names[j][:4]:>4s}" for j in range(len(states))])
+    print(header)
+    for i, s in enumerate(states):
+        row_str = f"  {state_names[i][:4]:>4s}"
+        for j in range(len(states)):
+            row_str += f"  {trans_matrix[i, j]:6.3f}"
+        print(row_str)
+
+    # 平稳分布
+    print("\n平稳分布 (长期均衡概率):")
+    for i, s in enumerate(states):
+        print(f"  {state_names[i]}: {stationary[i]:.4f} ({stationary[i]*100:.1f}%)")
+
+    # 平均持有时间
+    print("\n平均持有时间 (天):")
+    for i, s in enumerate(states):
+        if np.isinf(holding_time[i]):
+            print(f"  {state_names[i]}: ∞ (吸收态)")
+        else:
+            print(f"  {state_names[i]}: {holding_time[i]:.2f} 天")
+
+
+# ============================================================
+# 可视化
+# ============================================================
+
+def _plot_pca_scatter(X: np.ndarray, labels: np.ndarray,
+                      cluster_desc: pd.DataFrame, method_name: str,
+                      output_dir: Path):
+    """2D PCA散点图，按聚类着色"""
+    pca = PCA(n_components=2)
+    X_2d = pca.fit_transform(X)
+
+    fig, ax = plt.subplots(figsize=(12, 8))
+    states = np.sort(np.unique(labels))
+    colors = plt.cm.Set2(np.linspace(0, 1, len(states)))
+
+    for i, s in enumerate(states):
+        mask = labels == s
+        label_name = cluster_desc.loc[s, "state_cn"] if s in cluster_desc.index else f"Cluster {s}"
+        ax.scatter(X_2d[mask, 0], X_2d[mask, 1], c=[colors[i]], label=label_name,
+                   alpha=0.5, s=15, edgecolors='none')
+
+    ax.set_xlabel(f"PC1 ({pca.explained_variance_ratio_[0]*100:.1f}%)", fontsize=12)
+    ax.set_ylabel(f"PC2 ({pca.explained_variance_ratio_[1]*100:.1f}%)", fontsize=12)
+    ax.set_title(f"{method_name} 聚类结果 - PCA 2D投影", fontsize=14)
+    ax.legend(fontsize=10, loc='best')
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / f"cluster_pca_{method_name.lower().replace(' ', '_')}.png",
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_pca_{method_name.lower().replace(' ', '_')}.png")
+
+
+def _plot_silhouette(X: np.ndarray, labels: np.ndarray, method_name: str, output_dir: Path):
+    """轮廓系数分析图"""
+    n_clusters = len(set(labels) - {-1})
+    if n_clusters < 2:
+        return
+
+    # 排除噪声点
+    mask = labels >= 0
+    if mask.sum() < n_clusters + 1:
+        return
+
+    sil_vals = silhouette_samples(X[mask], labels[mask])
+    avg_sil = silhouette_score(X[mask], labels[mask])
+
+    fig, ax = plt.subplots(figsize=(10, 7))
+    y_lower = 10
+    valid_labels = np.sort(np.unique(labels[mask]))
+    colors = plt.cm.Set2(np.linspace(0, 1, len(valid_labels)))
+
+    for i, c in enumerate(valid_labels):
+        c_sil = sil_vals[labels[mask] == c]
+        c_sil.sort()
+        size = c_sil.shape[0]
+        y_upper = y_lower + size
+
+        ax.fill_betweenx(np.arange(y_lower, y_upper), 0, c_sil,
+                         facecolor=colors[i], edgecolor=colors[i], alpha=0.7)
+        ax.text(-0.05, y_lower + 0.5 * size, str(c), fontsize=10)
+        y_lower = y_upper + 10
+
+    ax.axvline(x=avg_sil, color="red", linestyle="--", label=f"平均={avg_sil:.3f}")
+    ax.set_xlabel("轮廓系数", fontsize=12)
+    ax.set_ylabel("聚类标签", fontsize=12)
+    ax.set_title(f"{method_name} 轮廓系数分析 (平均={avg_sil:.3f})", fontsize=14)
+    ax.legend(fontsize=10)
+
+    fig.savefig(output_dir / f"cluster_silhouette_{method_name.lower().replace(' ', '_')}.png",
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_silhouette_{method_name.lower().replace(' ', '_')}.png")
+
+
+def _plot_cluster_heatmap(cluster_desc: pd.DataFrame, method_name: str, output_dir: Path):
+    """聚类特征热力图"""
+    # 只选择数值型特征列
+    feat_cols = [c for c in FEATURE_COLS if c in cluster_desc.columns]
+    data = cluster_desc[feat_cols].copy()
+
+    # 对每列进行Z-score标准化（便于比较不同量纲的特征）
+    data_norm = (data - data.mean()) / (data.std() + 1e-10)
+
+    fig, ax = plt.subplots(figsize=(14, max(6, len(data) * 1.2)))
+
+    # 行标签用中文状态名
+    row_labels = [f"{idx}-{cluster_desc.loc[idx, 'state_cn']}" for idx in data.index]
+
+    im = ax.imshow(data_norm.values, cmap='RdYlGn', aspect='auto')
+    ax.set_xticks(range(len(feat_cols)))
+    ax.set_xticklabels(feat_cols, rotation=45, ha='right', fontsize=10)
+    ax.set_yticks(range(len(row_labels)))
+    ax.set_yticklabels(row_labels, fontsize=11)
+
+    # 在格子中显示原始数值
+    for i in range(data.shape[0]):
+        for j in range(data.shape[1]):
+            val = data.iloc[i, j]
+            ax.text(j, i, f"{val:.4f}", ha='center', va='center', fontsize=8,
+                    color='black' if abs(data_norm.iloc[i, j]) < 1.5 else 'white')
+
+    plt.colorbar(im, ax=ax, shrink=0.8, label="标准化值")
+    ax.set_title(f"{method_name} 各聚类特征热力图", fontsize=14)
+
+    fig.savefig(output_dir / f"cluster_heatmap_{method_name.lower().replace(' ', '_')}.png",
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_heatmap_{method_name.lower().replace(' ', '_')}.png")
+
+
+def _plot_transition_heatmap(trans_matrix: np.ndarray, cluster_desc: pd.DataFrame,
+                             output_dir: Path):
+    """状态转移概率矩阵热力图"""
+    state_names = [cluster_desc.loc[idx, "state_cn"] for idx in cluster_desc.index]
+
+    fig, ax = plt.subplots(figsize=(10, 8))
+    im = ax.imshow(trans_matrix, cmap='YlOrRd', vmin=0, vmax=1, aspect='auto')
+
+    n = len(state_names)
+    ax.set_xticks(range(n))
+    ax.set_xticklabels(state_names, rotation=45, ha='right', fontsize=11)
+    ax.set_yticks(range(n))
+    ax.set_yticklabels(state_names, fontsize=11)
+
+    # 标注概率值
+    for i in range(n):
+        for j in range(n):
+            color = 'white' if trans_matrix[i, j] > 0.5 else 'black'
+            ax.text(j, i, f"{trans_matrix[i, j]:.3f}", ha='center', va='center',
+                    fontsize=11, color=color, fontweight='bold')
+
+    plt.colorbar(im, ax=ax, shrink=0.8, label="转移概率")
+    ax.set_xlabel("下一状态", fontsize=12)
+    ax.set_ylabel("当前状态", fontsize=12)
+    ax.set_title("马尔可夫状态转移概率矩阵", fontsize=14)
+
+    fig.savefig(output_dir / "cluster_transition_matrix.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_transition_matrix.png")
+
+
+def _plot_state_timeseries(df_clean: pd.DataFrame, labels: np.ndarray,
+                           cluster_desc: pd.DataFrame, output_dir: Path):
+    """状态随时间变化的时间序列图"""
+    fig, axes = plt.subplots(2, 1, figsize=(18, 10), height_ratios=[2, 1], sharex=True)
+
+    dates = df_clean.index
+    close = df_clean["close"].values
+
+    states = np.sort(np.unique(labels))
+    colors = plt.cm.Set2(np.linspace(0, 1, len(states)))
+    color_map = {s: colors[i] for i, s in enumerate(states)}
+
+    # 上图：价格走势，按状态着色
+    ax1 = axes[0]
+    for i in range(len(dates) - 1):
+        ax1.plot([dates[i], dates[i + 1]], [close[i], close[i + 1]],
+                 color=color_map[labels[i]], linewidth=0.8)
+
+    # 添加图例
+    from matplotlib.patches import Patch
+    legend_patches = []
+    for s in states:
+        name = cluster_desc.loc[s, "state_cn"] if s in cluster_desc.index else f"Cluster {s}"
+        legend_patches.append(Patch(color=color_map[s], label=name))
+    ax1.legend(handles=legend_patches, fontsize=9, loc='upper left')
+    ax1.set_ylabel("BTC 价格 (USDT)", fontsize=12)
+    ax1.set_title("BTC 价格与市场状态时间序列", fontsize=14)
+    ax1.set_yscale('log')
+    ax1.grid(True, alpha=0.3)
+
+    # 下图：状态标签时间线
+    ax2 = axes[1]
+    state_colors = [color_map[l] for l in labels]
+    ax2.bar(dates, np.ones(len(dates)), color=state_colors, width=1.5, edgecolor='none')
+    ax2.set_yticks([])
+    ax2.set_ylabel("市场状态", fontsize=12)
+    ax2.set_xlabel("日期", fontsize=12)
+
+    plt.tight_layout()
+    fig.savefig(output_dir / "cluster_state_timeseries.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_state_timeseries.png")
+
+
+def _plot_kmeans_selection(kmeans_results: Dict, gmm_results: Dict, output_dir: Path):
+    """K选择对比图：轮廓系数 + BIC"""
+    fig, axes = plt.subplots(1, 3, figsize=(18, 5))
+
+    # 1. K-Means 轮廓系数
+    ks_km = sorted(kmeans_results.keys())
+    sils_km = [kmeans_results[k]["silhouette"] for k in ks_km]
+    axes[0].plot(ks_km, sils_km, 'bo-', linewidth=2, markersize=8)
+    best_k_km = ks_km[np.argmax(sils_km)]
+    axes[0].axvline(x=best_k_km, color='red', linestyle='--', alpha=0.7)
+    axes[0].set_xlabel("k", fontsize=12)
+    axes[0].set_ylabel("轮廓系数", fontsize=12)
+    axes[0].set_title("K-Means 轮廓系数", fontsize=13)
+    axes[0].grid(True, alpha=0.3)
+
+    # 2. K-Means 惯性 (Elbow)
+    inertias = [kmeans_results[k]["inertia"] for k in ks_km]
+    axes[1].plot(ks_km, inertias, 'gs-', linewidth=2, markersize=8)
+    axes[1].set_xlabel("k", fontsize=12)
+    axes[1].set_ylabel("惯性 (Inertia)", fontsize=12)
+    axes[1].set_title("K-Means 肘部法则", fontsize=13)
+    axes[1].grid(True, alpha=0.3)
+
+    # 3. GMM BIC
+    ks_gmm = sorted(gmm_results.keys())
+    bics = [gmm_results[k]["bic"] for k in ks_gmm]
+    axes[2].plot(ks_gmm, bics, 'r^-', linewidth=2, markersize=8)
+    best_k_gmm = ks_gmm[np.argmin(bics)]
+    axes[2].axvline(x=best_k_gmm, color='blue', linestyle='--', alpha=0.7)
+    axes[2].set_xlabel("k", fontsize=12)
+    axes[2].set_ylabel("BIC", fontsize=12)
+    axes[2].set_title("GMM BIC 选择", fontsize=13)
+    axes[2].grid(True, alpha=0.3)
+
+    plt.tight_layout()
+    fig.savefig(output_dir / "cluster_k_selection.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] cluster_k_selection.png")
+
+
+# ============================================================
+# 主入口
+# ============================================================
+
+def run_clustering_analysis(df: pd.DataFrame, output_dir: "str | Path" = "output/clustering") -> Dict:
+    """
+    市场状态聚类与马尔可夫链分析 - 主入口
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        已经通过 add_derived_features() 添加了衍生特征的日线数据
+    output_dir : str or Path
+        图表输出目录
+
+    Returns
+    -------
+    results : dict
+        包含聚类结果、转移矩阵、平稳分布等
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    # 设置中文字体（macOS）
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    print("=" * 60)
+    print("  BTC 市场状态聚类与马尔可夫链分析")
+    print("=" * 60)
+
+    # ---- 1. 特征准备 ----
+    df_clean, X_scaled, scaler = _prepare_features(df)
+
+    # ---- 2. K-Means 聚类 ----
+    best_k_km, km_labels, kmeans_results = _run_kmeans(X_scaled)
+
+    # ---- 3. GMM 聚类 ----
+    best_k_gmm, gmm_labels, gmm_results = _run_gmm(X_scaled)
+
+    # ---- 4. HDBSCAN 聚类 ----
+    hdbscan_labels, hdbscan_info = _run_hdbscan(X_scaled)
+
+    # ---- 5. K选择对比图 ----
+    print("\n[可视化] 生成K选择对比图...")
+    _plot_kmeans_selection(kmeans_results, gmm_results, output_dir)
+
+    # ---- 6. K-Means 聚类解释 ----
+    km_desc = _interpret_clusters(df_clean, km_labels, "K-Means")
+
+    # ---- 7. GMM 聚类解释 ----
+    gmm_desc = _interpret_clusters(df_clean, gmm_labels, "GMM")
+
+    # ---- 8. 马尔可夫链分析（基于K-Means结果）----
+    trans_matrix, stationary, holding_time = _compute_transition_matrix(km_labels)
+    _print_markov_results(trans_matrix, stationary, holding_time, km_desc)
+
+    # ---- 9. 可视化 ----
+    print("\n[可视化] 生成分析图表...")
+
+    # PCA散点图
+    _plot_pca_scatter(X_scaled, km_labels, km_desc, "K-Means", output_dir)
+    _plot_pca_scatter(X_scaled, gmm_labels, gmm_desc, "GMM", output_dir)
+    if hdbscan_labels is not None and hdbscan_info.get("n_clusters", 0) >= 2:
+        # 为HDBSCAN创建简易描述
+        hdb_states = np.sort(np.unique(hdbscan_labels[hdbscan_labels >= 0]))
+        hdb_desc = _interpret_clusters(df_clean, hdbscan_labels, "HDBSCAN")
+        _plot_pca_scatter(X_scaled, hdbscan_labels, hdb_desc, "HDBSCAN", output_dir)
+
+    # 轮廓系数图
+    _plot_silhouette(X_scaled, km_labels, "K-Means", output_dir)
+
+    # 聚类特征热力图
+    _plot_cluster_heatmap(km_desc, "K-Means", output_dir)
+    _plot_cluster_heatmap(gmm_desc, "GMM", output_dir)
+
+    # 转移矩阵热力图
+    _plot_transition_heatmap(trans_matrix, km_desc, output_dir)
+
+    # 状态时间序列图
+    _plot_state_timeseries(df_clean, km_labels, km_desc, output_dir)
+
+    # ---- 10. 汇总结果 ----
+    results = {
+        "kmeans": {
+            "best_k": best_k_km,
+            "labels": km_labels,
+            "cluster_desc": km_desc,
+            "all_results": kmeans_results,
+        },
+        "gmm": {
+            "best_k": best_k_gmm,
+            "labels": gmm_labels,
+            "cluster_desc": gmm_desc,
+            "all_results": gmm_results,
+        },
+        "hdbscan": {
+            "labels": hdbscan_labels,
+            "info": hdbscan_info,
+        },
+        "markov": {
+            "transition_matrix": trans_matrix,
+            "stationary_distribution": stationary,
+            "holding_time": holding_time,
+        },
+        "features": {
+            "df_clean": df_clean,
+            "X_scaled": X_scaled,
+            "scaler": scaler,
+        },
+    }
+
+    print("\n" + "=" * 60)
+    print("  聚类与马尔可夫链分析完成！")
+    print("=" * 60)
+
+    return results
+
+
+# ============================================================
+# 命令行入口
+# ============================================================
+
+if __name__ == "__main__":
+    from data_loader import load_daily
+    from preprocessing import add_derived_features
+
+    df = load_daily()
+    df = add_derived_features(df)
+
+    results = run_clustering_analysis(df, output_dir="output/clustering")
diff --git a/src/data_loader.py b/src/data_loader.py
new file mode 100644
index 0000000..b2856cd
--- /dev/null
+++ b/src/data_loader.py
@@ -0,0 +1,142 @@
+"""统一数据加载模块 - 处理毫秒/微秒时间戳差异"""
+
+import pandas as pd
+import numpy as np
+from pathlib import Path
+from typing import Optional
+
+DATA_DIR = Path(__file__).parent.parent / "data"
+
+AVAILABLE_INTERVALS = [
+    "1m", "3m", "5m", "15m", "30m",
+    "1h", "2h", "4h", "6h", "8h", "12h",
+    "1d", "3d", "1w", "1mo"
+]
+
+COLUMNS = [
+    "open_time", "open", "high", "low", "close", "volume",
+    "close_time", "quote_volume", "trades",
+    "taker_buy_volume", "taker_buy_quote_volume", "ignore"
+]
+
+NUMERIC_COLS = [
+    "open", "high", "low", "close", "volume",
+    "quote_volume", "trades", "taker_buy_volume", "taker_buy_quote_volume"
+]
+
+
+def _adaptive_timestamp(ts_series: pd.Series) -> pd.DatetimeIndex:
+    """自适应处理毫秒(13位)和微秒(16位)时间戳"""
+    ts = ts_series.astype(np.int64)
+    # 16位时间戳(微秒) -> 转为毫秒
+    mask = ts > 1e15
+    ts = ts.copy()
+    ts[mask] = ts[mask] // 1000
+    return pd.to_datetime(ts, unit="ms")
+
+
+def load_klines(
+    interval: str = "1d",
+    start: Optional[str] = None,
+    end: Optional[str] = None,
+    data_dir: Optional[Path] = None,
+) -> pd.DataFrame:
+    """
+    加载指定时间粒度的K线数据
+
+    Parameters
+    ----------
+    interval : str
+        K线粒度，如 '1d', '1h', '4h', '1w', '1mo'
+    start : str, optional
+        起始日期，如 '2020-01-01'
+    end : str, optional
+        结束日期，如 '2025-12-31'
+    data_dir : Path, optional
+        数据目录，默认使用 data/
+
+    Returns
+    -------
+    pd.DataFrame
+        以 DatetimeIndex 为索引的K线数据
+    """
+    if data_dir is None:
+        data_dir = DATA_DIR
+
+    filepath = data_dir / f"btcusdt_{interval}.csv"
+    if not filepath.exists():
+        raise FileNotFoundError(f"数据文件不存在: {filepath}")
+
+    df = pd.read_csv(filepath)
+
+    # 类型转换
+    for col in NUMERIC_COLS:
+        if col in df.columns:
+            df[col] = pd.to_numeric(df[col], errors="coerce")
+
+    # 自适应时间戳处理
+    df.index = _adaptive_timestamp(df["open_time"])
+    df.index.name = "datetime"
+
+    # close_time 也做处理
+    if "close_time" in df.columns:
+        df["close_time"] = _adaptive_timestamp(df["close_time"])
+
+    # 删除原始时间戳列和ignore列
+    df.drop(columns=["open_time", "ignore"], inplace=True, errors="ignore")
+
+    # 排序去重
+    df.sort_index(inplace=True)
+    df = df[~df.index.duplicated(keep="first")]
+
+    # 时间范围过滤
+    if start:
+        df = df[df.index >= pd.Timestamp(start)]
+    if end:
+        df = df[df.index <= pd.Timestamp(end)]
+
+    return df
+
+
+def load_daily(start: Optional[str] = None, end: Optional[str] = None) -> pd.DataFrame:
+    """快捷加载日线数据"""
+    return load_klines("1d", start=start, end=end)
+
+
+def load_hourly(start: Optional[str] = None, end: Optional[str] = None) -> pd.DataFrame:
+    """快捷加载小时数据"""
+    return load_klines("1h", start=start, end=end)
+
+
+def validate_data(df: pd.DataFrame, interval: str = "1d") -> dict:
+    """数据完整性校验"""
+    report = {
+        "rows": len(df),
+        "date_range": f"{df.index.min()} ~ {df.index.max()}",
+        "null_counts": df.isnull().sum().to_dict(),
+        "duplicate_index": df.index.duplicated().sum(),
+    }
+
+    # 检查价格合理性
+    report["price_range"] = f"{df['close'].min():.2f} ~ {df['close'].max():.2f}"
+    report["negative_volume"] = (df["volume"] < 0).sum()
+
+    # 检查缺失天数(仅日线)
+    if interval == "1d":
+        expected_days = (df.index.max() - df.index.min()).days + 1
+        report["expected_days"] = expected_days
+        report["missing_days"] = expected_days - len(df)
+
+    return report
+
+
+# 数据切分常量
+TRAIN_END = "2022-09-30"
+VAL_END = "2024-06-30"
+
+def split_data(df: pd.DataFrame):
+    """按时间顺序切分 训练/验证/测试 集"""
+    train = df[df.index <= TRAIN_END]
+    val = df[(df.index > TRAIN_END) & (df.index <= VAL_END)]
+    test = df[df.index > VAL_END]
+    return train, val, test
diff --git a/src/fft_analysis.py b/src/fft_analysis.py
new file mode 100644
index 0000000..63e371e
--- /dev/null
+++ b/src/fft_analysis.py
@@ -0,0 +1,901 @@
+"""FFT 频谱分析模块 - BTC价格周期性检测与频域特征提取"""
+
+import matplotlib
+matplotlib.use("Agg")
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy.fft import fft, fftfreq, ifft
+from scipy.signal import find_peaks, butter, sosfiltfilt
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+from src.data_loader import load_klines
+from src.preprocessing import log_returns, detrend_linear
+
+
+# ============================================================
+# 常量定义
+# ============================================================
+
+# 多时间框架比较所用的K线粒度及其对应采样周期（天）
+MULTI_TF_INTERVALS = {
+    "4h": 4 / 24,    # 0.1667天
+    "1d": 1.0,        # 1天
+    "1w": 7.0,        # 7天
+}
+
+# 带通滤波目标周期（天）
+BANDPASS_PERIODS_DAYS = [7, 30, 90, 365, 1400]
+
+# 峰值检测阈值：功率必须超过背景噪声的倍数
+PEAK_THRESHOLD_RATIO = 5.0
+
+# 图表保存参数
+SAVE_KW = dict(dpi=150, bbox_inches="tight")
+
+
+# ============================================================
+# 核心FFT计算函数
+# ============================================================
+
+def compute_fft_spectrum(
+    signal: np.ndarray,
+    sampling_period_days: float,
+    apply_window: bool = True,
+) -> Tuple[np.ndarray, np.ndarray, np.ndarray]:
+    """
+    计算信号的FFT功率谱
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        输入时域信号（需已去趋势/取对数收益率）
+    sampling_period_days : float
+        采样周期，单位为天（日线=1.0, 4h线=4/24）
+    apply_window : bool
+        是否应用Hann窗函数以抑制频谱泄漏
+
+    Returns
+    -------
+    freqs : np.ndarray
+        频率数组（仅正频率部分），单位 cycles/day
+    periods : np.ndarray
+        周期数组（天），即 1/freqs
+    power : np.ndarray
+        功率谱（振幅平方的归一化值）
+    """
+    n = len(signal)
+    if n == 0:
+        return np.array([]), np.array([]), np.array([])
+
+    # 应用Hann窗减少频谱泄漏
+    if apply_window:
+        window = np.hanning(n)
+        windowed = signal * window
+        # 窗函数能量补偿：保持总功率不变
+        window_energy = np.sum(window ** 2) / n
+    else:
+        windowed = signal.copy()
+        window_energy = 1.0
+
+    # FFT计算
+    yf = fft(windowed)
+    freqs = fftfreq(n, d=sampling_period_days)
+
+    # 仅取正频率部分（排除直流分量 freq=0）
+    pos_mask = freqs > 0
+    freqs_pos = freqs[pos_mask]
+    yf_pos = yf[pos_mask]
+
+    # 功率谱密度：|FFT|^2 / (N * 窗函数能量)
+    power = (np.abs(yf_pos) ** 2) / (n * window_energy)
+
+    # 对应周期
+    periods = 1.0 / freqs_pos
+
+    return freqs_pos, periods, power
+
+
+# ============================================================
+# AR(1) 红噪声基线模型
+# ============================================================
+
+def ar1_red_noise_spectrum(
+    signal: np.ndarray,
+    freqs: np.ndarray,
+    sampling_period_days: float,
+    confidence_percentile: float = 95.0,
+) -> Tuple[np.ndarray, np.ndarray]:
+    """
+    基于AR(1)模型估算红噪声理论功率谱
+
+    AR(1)模型的功率谱密度公式：
+        S(f) = S0 * (1 - rho^2) / (1 - 2*rho*cos(2*pi*f*dt) + rho^2)
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        原始信号
+    freqs : np.ndarray
+        频率数组
+    sampling_period_days : float
+        采样周期
+    confidence_percentile : float
+        置信水平百分位数（默认95%）
+
+    Returns
+    -------
+    noise_mean : np.ndarray
+        红噪声理论均值功率谱
+    noise_threshold : np.ndarray
+        指定置信水平的功率阈值
+    """
+    n = len(signal)
+    if n < 3:
+        return np.zeros_like(freqs), np.zeros_like(freqs)
+
+    # 估计AR(1)系数 rho（滞后1自相关）
+    signal_centered = signal - np.mean(signal)
+    autocov_0 = np.sum(signal_centered ** 2) / n
+    autocov_1 = np.sum(signal_centered[:-1] * signal_centered[1:]) / n
+    rho = autocov_1 / autocov_0 if autocov_0 > 0 else 0.0
+    rho = np.clip(rho, -0.999, 0.999)  # 防止数值不稳定
+
+    # AR(1)理论功率谱
+    variance = autocov_0
+    s0 = variance * (1 - rho ** 2)
+    cos_term = np.cos(2 * np.pi * freqs * sampling_period_days)
+    denominator = 1 - 2 * rho * cos_term + rho ** 2
+    noise_mean = s0 / denominator
+
+    # 归一化使均值与信号功率谱均值匹配（经验缩放）
+    # 在chi-squared分布下，FFT功率近似服从指数分布（自由度2）
+    # 95%置信上界 = 均值 * chi2_ppf(0.95, 2) / 2 ≈ 均值 * 2.996
+    from scipy.stats import chi2
+    scale_factor = chi2.ppf(confidence_percentile / 100.0, df=2) / 2.0
+    noise_threshold = noise_mean * scale_factor
+
+    return noise_mean, noise_threshold
+
+
+# ============================================================
+# 峰值检测
+# ============================================================
+
+def detect_spectral_peaks(
+    freqs: np.ndarray,
+    periods: np.ndarray,
+    power: np.ndarray,
+    noise_mean: np.ndarray,
+    noise_threshold: np.ndarray,
+    threshold_ratio: float = PEAK_THRESHOLD_RATIO,
+    min_period_days: float = 2.0,
+) -> pd.DataFrame:
+    """
+    在功率谱中检测显著峰值
+
+    峰值判定标准：
+    1. scipy.signal.find_peaks 局部峰值
+    2. 功率 > threshold_ratio * 背景噪声均值
+    3. 周期 > min_period_days（过滤高频噪声）
+
+    Parameters
+    ----------
+    freqs, periods, power : np.ndarray
+        频率、周期、功率数组
+    noise_mean, noise_threshold : np.ndarray
+        红噪声均值和置信阈值
+    threshold_ratio : float
+        峰值必须超过噪声均值的倍数
+    min_period_days : float
+        最小周期阈值（天）
+
+    Returns
+    -------
+    pd.DataFrame
+        检测到的峰值信息表，包含 period_days, frequency, power, noise_level, snr 列
+    """
+    if len(power) == 0:
+        return pd.DataFrame(columns=["period_days", "frequency", "power", "noise_level", "snr"])
+
+    # 使用scipy检测局部峰值
+    peak_indices, properties = find_peaks(power, height=0)
+
+    results = []
+    for idx in peak_indices:
+        period_d = periods[idx]
+        pwr = power[idx]
+        noise_lvl = noise_mean[idx] if idx < len(noise_mean) else 1.0
+        snr = pwr / noise_lvl if noise_lvl > 0 else 0.0
+
+        # 筛选：周期足够长且功率显著超过噪声
+        if period_d >= min_period_days and snr >= threshold_ratio:
+            results.append({
+                "period_days": period_d,
+                "frequency": freqs[idx],
+                "power": pwr,
+                "noise_level": noise_lvl,
+                "snr": snr,
+            })
+
+    df_peaks = pd.DataFrame(results)
+    if not df_peaks.empty:
+        df_peaks = df_peaks.sort_values("snr", ascending=False).reset_index(drop=True)
+
+    return df_peaks
+
+
+# ============================================================
+# 带通滤波器
+# ============================================================
+
+def bandpass_filter(
+    signal: np.ndarray,
+    sampling_period_days: float,
+    center_period_days: float,
+    bandwidth_ratio: float = 0.3,
+    order: int = 4,
+) -> np.ndarray:
+    """
+    带通滤波提取特定周期分量
+
+    对于长周期（归一化低频 < 0.01）自动使用FFT域滤波以避免
+    Butterworth滤波器的数值不稳定问题。其余情况使用SOS格式的
+    Butterworth带通滤波（sosfiltfilt），保证数值稳定性。
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        输入信号
+    sampling_period_days : float
+        采样周期（天）
+    center_period_days : float
+        目标中心周期（天）
+    bandwidth_ratio : float
+        带宽比例：实际带宽 = center_period * (1 +/- bandwidth_ratio)
+    order : int
+        Butterworth滤波器阶数
+
+    Returns
+    -------
+    np.ndarray
+        滤波后的信号分量
+    """
+    fs = 1.0 / sampling_period_days  # 采样频率 (cycles/day)
+    nyquist = fs / 2.0
+
+    # 带通频率范围
+    low_period = center_period_days * (1 + bandwidth_ratio)
+    high_period = center_period_days * (1 - bandwidth_ratio)
+
+    if high_period <= 0:
+        high_period = sampling_period_days * 2.1  # 保证物理意义
+
+    low_freq = 1.0 / low_period
+    high_freq = 1.0 / high_period
+
+    # 归一化到Nyquist频率
+    low_norm = low_freq / nyquist
+    high_norm = high_freq / nyquist
+
+    # 确保归一化频率在有效范围 (0, 1) 内
+    low_norm = np.clip(low_norm, 1e-6, 0.9999)
+    high_norm = np.clip(high_norm, low_norm + 1e-6, 0.9999)
+
+    if low_norm >= high_norm:
+        return np.zeros_like(signal)
+
+    # 对于长周期（归一化低频极小），Butterworth滤波器数值不稳定
+    # 直接使用FFT域带通滤波作为可靠替代
+    if low_norm < 0.01:
+        return _fft_bandpass_fallback(signal, sampling_period_days,
+                                      center_period_days, bandwidth_ratio)
+
+    # 信号长度检查：sosfiltfilt 需要足够的样本点
+    min_samples = 3 * (2 * order + 1)
+    if len(signal) < min_samples:
+        return np.zeros_like(signal)
+
+    try:
+        # 使用SOS格式（二阶节）保证数值稳定性
+        sos = butter(order, [low_norm, high_norm], btype="band", output="sos")
+        filtered = sosfiltfilt(sos, signal)
+        return filtered
+    except (ValueError, np.linalg.LinAlgError):
+        # 若滤波失败，回退到FFT方式
+        return _fft_bandpass_fallback(signal, sampling_period_days,
+                                      center_period_days, bandwidth_ratio)
+
+
+def _fft_bandpass_fallback(
+    signal: np.ndarray,
+    sampling_period_days: float,
+    center_period_days: float,
+    bandwidth_ratio: float,
+) -> np.ndarray:
+    """FFT域带通滤波备选方案"""
+    n = len(signal)
+    freqs = fftfreq(n, d=sampling_period_days)
+    yf = fft(signal)
+
+    center_freq = 1.0 / center_period_days
+    low_freq = center_freq / (1 + bandwidth_ratio)
+    high_freq = center_freq / (1 - bandwidth_ratio) if bandwidth_ratio < 1 else center_freq * 10
+
+    # 频域掩码：保留目标频段
+    mask = (np.abs(freqs) >= low_freq) & (np.abs(freqs) <= high_freq)
+    yf_filtered = np.zeros_like(yf)
+    yf_filtered[mask] = yf[mask]
+
+    return np.real(ifft(yf_filtered))
+
+
+# ============================================================
+# 可视化函数
+# ============================================================
+
+def plot_power_spectrum(
+    periods: np.ndarray,
+    power: np.ndarray,
+    noise_mean: np.ndarray,
+    noise_threshold: np.ndarray,
+    peaks_df: pd.DataFrame,
+    title: str = "BTC Log Returns - FFT Power Spectrum",
+    save_path: Optional[Path] = None,
+) -> plt.Figure:
+    """
+    功率谱图：包含峰值标注和红噪声置信带
+
+    Parameters
+    ----------
+    periods, power : np.ndarray
+        周期和功率数组
+    noise_mean, noise_threshold : np.ndarray
+        红噪声均值和置信阈值
+    peaks_df : pd.DataFrame
+        检测到的峰值表
+    title : str
+        图表标题
+    save_path : Path, optional
+        保存路径
+
+    Returns
+    -------
+    fig : plt.Figure
+    """
+    fig, ax = plt.subplots(figsize=(14, 7))
+
+    # 功率谱（对数坐标）
+    ax.loglog(periods, power, color="#2196F3", linewidth=0.6, alpha=0.8, label="Power Spectrum")
+
+    # 红噪声基线
+    ax.loglog(periods, noise_mean, color="#FF9800", linewidth=1.5,
+              linestyle="--", label="AR(1) Red Noise Mean")
+
+    # 95%置信带
+    ax.fill_between(periods, 0, noise_threshold,
+                    alpha=0.15, color="#FF9800", label="95% Confidence Band")
+    ax.loglog(periods, noise_threshold, color="#FF5722", linewidth=1.0,
+              linestyle=":", alpha=0.7, label="95% Confidence Threshold")
+
+    # 5x噪声阈值线
+    noise_5x = noise_mean * PEAK_THRESHOLD_RATIO
+    ax.loglog(periods, noise_5x, color="#F44336", linewidth=1.0,
+              linestyle="-.", alpha=0.5, label=f"{PEAK_THRESHOLD_RATIO:.0f}x Noise Threshold")
+
+    # 峰值标注
+    if not peaks_df.empty:
+        for _, row in peaks_df.iterrows():
+            period_d = row["period_days"]
+            pwr = row["power"]
+            snr = row["snr"]
+
+            ax.plot(period_d, pwr, "rv", markersize=10, zorder=5)
+
+            # 周期标签格式化
+            if period_d >= 365:
+                label_str = f"{period_d / 365:.1f}y (SNR={snr:.1f})"
+            elif period_d >= 30:
+                label_str = f"{period_d:.0f}d (SNR={snr:.1f})"
+            else:
+                label_str = f"{period_d:.1f}d (SNR={snr:.1f})"
+
+            ax.annotate(
+                label_str,
+                xy=(period_d, pwr),
+                xytext=(0, 15),
+                textcoords="offset points",
+                fontsize=8,
+                fontweight="bold",
+                color="#D32F2F",
+                ha="center",
+                arrowprops=dict(arrowstyle="-", color="#D32F2F", lw=0.5),
+            )
+
+    ax.set_xlabel("Period (days)", fontsize=12)
+    ax.set_ylabel("Power", fontsize=12)
+    ax.set_title(title, fontsize=14, fontweight="bold")
+    ax.legend(loc="upper right", fontsize=9)
+    ax.grid(True, which="both", alpha=0.3)
+
+    # X轴标记关键周期
+    key_periods = [7, 14, 30, 60, 90, 180, 365, 730, 1460]
+    ax.set_xticks(key_periods)
+    ax.set_xticklabels([str(p) for p in key_periods], fontsize=8)
+    ax.set_xlim(left=max(2, periods.min()), right=periods.max())
+
+    plt.tight_layout()
+
+    if save_path:
+        fig.savefig(save_path, **SAVE_KW)
+        print(f"  [保存] 功率谱图 -> {save_path}")
+
+    return fig
+
+
+def plot_multi_timeframe(
+    tf_results: Dict[str, dict],
+    save_path: Optional[Path] = None,
+) -> plt.Figure:
+    """
+    多时间框架FFT频谱对比图
+
+    Parameters
+    ----------
+    tf_results : dict
+        键为时间框架标签，值为包含 periods/power/noise_mean 的dict
+    save_path : Path, optional
+        保存路径
+
+    Returns
+    -------
+    fig : plt.Figure
+    """
+    n_tf = len(tf_results)
+    fig, axes = plt.subplots(n_tf, 1, figsize=(14, 5 * n_tf), sharex=False)
+    if n_tf == 1:
+        axes = [axes]
+
+    colors = ["#2196F3", "#4CAF50", "#9C27B0"]
+
+    for ax, (label, data), color in zip(axes, tf_results.items(), colors):
+        periods = data["periods"]
+        power = data["power"]
+        noise_mean = data["noise_mean"]
+
+        ax.loglog(periods, power, color=color, linewidth=0.6, alpha=0.8,
+                  label=f"{label} Spectrum")
+        ax.loglog(periods, noise_mean, color="#FF9800", linewidth=1.2,
+                  linestyle="--", alpha=0.7, label="AR(1) Noise")
+
+        # 标注峰值
+        peaks_df = data.get("peaks", pd.DataFrame())
+        if not peaks_df.empty:
+            for _, row in peaks_df.head(5).iterrows():
+                period_d = row["period_days"]
+                pwr = row["power"]
+                ax.plot(period_d, pwr, "rv", markersize=8, zorder=5)
+                if period_d >= 365:
+                    lbl = f"{period_d / 365:.1f}y"
+                elif period_d >= 30:
+                    lbl = f"{period_d:.0f}d"
+                else:
+                    lbl = f"{period_d:.1f}d"
+                ax.annotate(lbl, xy=(period_d, pwr), xytext=(0, 10),
+                            textcoords="offset points", fontsize=8,
+                            color="#D32F2F", ha="center", fontweight="bold")
+
+        ax.set_ylabel("Power", fontsize=11)
+        ax.set_title(f"BTC FFT Spectrum - {label}", fontsize=12, fontweight="bold")
+        ax.legend(loc="upper right", fontsize=9)
+        ax.grid(True, which="both", alpha=0.3)
+
+    axes[-1].set_xlabel("Period (days)", fontsize=12)
+    plt.tight_layout()
+
+    if save_path:
+        fig.savefig(save_path, **SAVE_KW)
+        print(f"  [保存] 多时间框架对比图 -> {save_path}")
+
+    return fig
+
+
+def plot_bandpass_components(
+    dates: pd.DatetimeIndex,
+    original_signal: np.ndarray,
+    components: Dict[str, np.ndarray],
+    save_path: Optional[Path] = None,
+) -> plt.Figure:
+    """
+    带通滤波分量子图
+
+    Parameters
+    ----------
+    dates : pd.DatetimeIndex
+        日期索引
+    original_signal : np.ndarray
+        原始信号（对数收益率）
+    components : dict
+        键为周期标签（如 "7d"），值为滤波后的信号数组
+    save_path : Path, optional
+        保存路径
+
+    Returns
+    -------
+    fig : plt.Figure
+    """
+    n_comp = len(components) + 1  # +1 for original
+    fig, axes = plt.subplots(n_comp, 1, figsize=(14, 3 * n_comp), sharex=True)
+
+    # 原始信号
+    axes[0].plot(dates, original_signal, color="#455A64", linewidth=0.5, alpha=0.8)
+    axes[0].set_title("Original Log Returns", fontsize=11, fontweight="bold")
+    axes[0].set_ylabel("Log Return", fontsize=9)
+    axes[0].grid(True, alpha=0.3)
+
+    # 各周期分量
+    colors_bp = ["#E91E63", "#2196F3", "#4CAF50", "#FF9800", "#9C27B0"]
+    for i, ((label, comp), color) in enumerate(zip(components.items(), colors_bp)):
+        ax = axes[i + 1]
+        ax.plot(dates, comp, color=color, linewidth=0.8, alpha=0.9)
+        ax.set_title(f"Bandpass Component: {label} cycle", fontsize=11, fontweight="bold")
+        ax.set_ylabel("Amplitude", fontsize=9)
+        ax.grid(True, alpha=0.3)
+
+        # 显示该分量的方差占比
+        if np.var(original_signal) > 0:
+            var_ratio = np.var(comp) / np.var(original_signal) * 100
+            ax.text(0.02, 0.92, f"Variance ratio: {var_ratio:.2f}%",
+                    transform=ax.transAxes, fontsize=9,
+                    bbox=dict(boxstyle="round,pad=0.3", facecolor=color, alpha=0.15))
+
+    axes[-1].set_xlabel("Date", fontsize=11)
+    plt.tight_layout()
+
+    if save_path:
+        fig.savefig(save_path, **SAVE_KW)
+        print(f"  [保存] 带通滤波分量图 -> {save_path}")
+
+    return fig
+
+
+# ============================================================
+# 单时间框架FFT分析流水线
+# ============================================================
+
+def _analyze_single_timeframe(
+    df: pd.DataFrame,
+    sampling_period_days: float,
+    label: str = "1d",
+) -> dict:
+    """
+    对单个时间框架执行完整FFT分析
+
+    Returns
+    -------
+    dict
+        包含 freqs, periods, power, noise_mean, noise_threshold, peaks, log_ret 等
+    """
+    prices = df["close"].dropna()
+    if len(prices) < 10:
+        print(f"  [警告] {label} 数据量不足 ({len(prices)} 条)，跳过分析")
+        return {}
+
+    # 计算对数收益率
+    log_ret = np.log(prices / prices.shift(1)).dropna().values
+
+    # FFT频谱计算（Hann窗）
+    freqs, periods, power = compute_fft_spectrum(
+        log_ret, sampling_period_days, apply_window=True
+    )
+
+    if len(freqs) == 0:
+        return {}
+
+    # AR(1)红噪声基线
+    noise_mean, noise_threshold = ar1_red_noise_spectrum(
+        log_ret, freqs, sampling_period_days, confidence_percentile=95.0
+    )
+
+    # 峰值检测
+    # 对于低频数据（如周线），放宽最小周期约束
+    min_period = max(2.0, sampling_period_days * 3)
+    peaks_df = detect_spectral_peaks(
+        freqs, periods, power, noise_mean, noise_threshold,
+        threshold_ratio=PEAK_THRESHOLD_RATIO,
+        min_period_days=min_period,
+    )
+
+    return {
+        "freqs": freqs,
+        "periods": periods,
+        "power": power,
+        "noise_mean": noise_mean,
+        "noise_threshold": noise_threshold,
+        "peaks": peaks_df,
+        "log_ret": log_ret,
+        "label": label,
+    }
+
+
+# ============================================================
+# 主入口函数
+# ============================================================
+
+def run_fft_analysis(
+    df: pd.DataFrame,
+    output_dir: str,
+) -> Dict:
+    """
+    BTC价格FFT频谱分析主入口
+
+    执行以下分析并保存可视化结果：
+    1. 日线对数收益率FFT频谱分析（Hann窗 + AR1红噪声基线）
+    2. 功率谱峰值检测（5x噪声阈值）
+    3. 多时间框架（4h/1d/1w）频谱对比
+    4. 带通滤波提取关键周期分量（7d/30d/90d/365d/1400d）
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线K线数据，DatetimeIndex，需包含 close 列
+    output_dir : str
+        图表输出目录路径
+
+    Returns
+    -------
+    dict
+        分析结果汇总：
+        - daily_peaks: 日线显著周期峰值表
+        - multi_tf_peaks: 各时间框架峰值字典
+        - bandpass_variance_ratios: 各带通分量方差占比
+        - ar1_rho: AR(1)自相关系数
+    """
+    output_path = Path(output_dir)
+    output_path.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 70)
+    print("BTC FFT 频谱分析")
+    print("=" * 70)
+
+    # ----------------------------------------------------------
+    # 第一部分：日线对数收益率FFT分析
+    # ----------------------------------------------------------
+    print("\n[1/4] 日线对数收益率FFT分析 (Hann窗)")
+    daily_result = _analyze_single_timeframe(df, sampling_period_days=1.0, label="1d")
+
+    if not daily_result:
+        print("  [错误] 日线分析失败，数据不足")
+        return {}
+
+    log_ret = daily_result["log_ret"]
+    periods = daily_result["periods"]
+    power = daily_result["power"]
+    noise_mean = daily_result["noise_mean"]
+    noise_threshold = daily_result["noise_threshold"]
+    peaks_df = daily_result["peaks"]
+
+    # 打印AR(1)参数
+    signal_centered = log_ret - np.mean(log_ret)
+    autocov_0 = np.sum(signal_centered ** 2) / len(log_ret)
+    autocov_1 = np.sum(signal_centered[:-1] * signal_centered[1:]) / len(log_ret)
+    ar1_rho = autocov_1 / autocov_0 if autocov_0 > 0 else 0.0
+    print(f"  AR(1) 自相关系数 rho = {ar1_rho:.4f}")
+    print(f"  数据长度: {len(log_ret)} 个交易日")
+    print(f"  频率分辨率: {1.0 / len(log_ret):.6f} cycles/day (最大可分辨周期: {len(log_ret):.0f} 天)")
+
+    # 打印显著峰值
+    if not peaks_df.empty:
+        print(f"\n  检测到 {len(peaks_df)} 个显著周期峰值 (SNR > {PEAK_THRESHOLD_RATIO:.0f}x):")
+        print("  " + "-" * 60)
+        print(f"  {'周期(天)':>10} | {'周期':>12} | {'SNR':>8} | {'功率':>12}")
+        print("  " + "-" * 60)
+        for _, row in peaks_df.iterrows():
+            pd_days = row["period_days"]
+            snr = row["snr"]
+            pwr = row["power"]
+            if pd_days >= 365:
+                human_period = f"{pd_days / 365:.1f} 年"
+            elif pd_days >= 30:
+                human_period = f"{pd_days / 30:.1f} 月"
+            else:
+                human_period = f"{pd_days:.1f} 天"
+            print(f"  {pd_days:>10.1f} | {human_period:>12} | {snr:>8.2f} | {pwr:>12.6e}")
+        print("  " + "-" * 60)
+    else:
+        print("  未检测到显著超过红噪声基线的周期峰值")
+
+    # 功率谱图
+    fig_spectrum = plot_power_spectrum(
+        periods, power, noise_mean, noise_threshold, peaks_df,
+        title="BTC Daily Log Returns - FFT Power Spectrum (Hann Window)",
+        save_path=output_path / "fft_power_spectrum.png",
+    )
+    plt.close(fig_spectrum)
+
+    # ----------------------------------------------------------
+    # 第二部分：多时间框架FFT对比
+    # ----------------------------------------------------------
+    print("\n[2/4] 多时间框架FFT对比 (4h / 1d / 1w)")
+    tf_results = {}
+
+    for interval, sp_days in MULTI_TF_INTERVALS.items():
+        try:
+            if interval == "1d":
+                tf_df = df
+            else:
+                tf_df = load_klines(interval)
+            result = _analyze_single_timeframe(tf_df, sp_days, label=interval)
+            if result:
+                tf_results[interval] = result
+                n_peaks = len(result["peaks"]) if not result["peaks"].empty else 0
+                print(f"  {interval}: {len(result['log_ret'])} 样本, {n_peaks} 个显著峰值")
+        except FileNotFoundError:
+            print(f"  [警告] {interval} 数据文件未找到，跳过")
+        except Exception as e:
+            print(f"  [警告] {interval} 分析失败: {e}")
+
+    # 多时间框架对比图
+    if len(tf_results) > 1:
+        fig_mtf = plot_multi_timeframe(
+            tf_results,
+            save_path=output_path / "fft_multi_timeframe.png",
+        )
+        plt.close(fig_mtf)
+    else:
+        print("  [警告] 可用时间框架不足，跳过对比图")
+
+    # ----------------------------------------------------------
+    # 第三部分：带通滤波提取周期分量
+    # ----------------------------------------------------------
+    print(f"\n[3/4] 带通滤波提取周期分量: {BANDPASS_PERIODS_DAYS}")
+    prices = df["close"].dropna()
+    dates = prices.index[1:]  # 与log_ret对齐（差分损失1个点）
+    # 确保dates和log_ret长度一致
+    if len(dates) > len(log_ret):
+        dates = dates[:len(log_ret)]
+    elif len(dates) < len(log_ret):
+        log_ret = log_ret[:len(dates)]
+
+    components = {}
+    variance_ratios = {}
+    original_var = np.var(log_ret)
+
+    for period_days in BANDPASS_PERIODS_DAYS:
+        # 检查Nyquist条件：目标周期必须大于2倍采样周期
+        if period_days < 2.0 * 1.0:
+            print(f"  [跳过] {period_days}d 周期低于Nyquist极限")
+            continue
+        # 检查信号长度是否覆盖至少2个完整周期
+        if len(log_ret) < period_days * 2:
+            print(f"  [跳过] {period_days}d 周期：数据长度不足 ({len(log_ret)} < {period_days * 2:.0f})")
+            continue
+
+        filtered = bandpass_filter(
+            log_ret,
+            sampling_period_days=1.0,
+            center_period_days=float(period_days),
+            bandwidth_ratio=0.3,
+            order=4,
+        )
+
+        label = f"{period_days}d"
+        components[label] = filtered
+        var_ratio = np.var(filtered) / original_var * 100 if original_var > 0 else 0
+        variance_ratios[label] = var_ratio
+        print(f"  {label:>6} 分量方差占比: {var_ratio:.3f}%")
+
+    # 带通分量图
+    if components:
+        fig_bp = plot_bandpass_components(
+            dates, log_ret, components,
+            save_path=output_path / "fft_bandpass_components.png",
+        )
+        plt.close(fig_bp)
+    else:
+        print("  [警告] 无有效带通分量可绘制")
+
+    # ----------------------------------------------------------
+    # 第四部分：汇总输出
+    # ----------------------------------------------------------
+    print("\n[4/4] 分析汇总")
+
+    # 收集多时间框架峰值
+    multi_tf_peaks = {}
+    for tf_label, tf_data in tf_results.items():
+        if not tf_data["peaks"].empty:
+            multi_tf_peaks[tf_label] = tf_data["peaks"]
+
+    # 跨时间框架一致性检验
+    print("\n  跨时间框架周期一致性检查:")
+    if len(multi_tf_peaks) >= 2:
+        # 收集所有检测到的周期
+        all_detected_periods = []
+        for tf_label, p_df in multi_tf_peaks.items():
+            for _, row in p_df.iterrows():
+                all_detected_periods.append({
+                    "timeframe": tf_label,
+                    "period_days": row["period_days"],
+                    "snr": row["snr"],
+                })
+
+        if all_detected_periods:
+            all_periods_df = pd.DataFrame(all_detected_periods)
+            # 按周期分组（允许20%误差范围），寻找多时间框架确认的周期
+            confirmed = []
+            used = set()
+            for i, row_i in all_periods_df.iterrows():
+                if i in used:
+                    continue
+                p_i = row_i["period_days"]
+                group = [row_i]
+                used.add(i)
+                for j, row_j in all_periods_df.iterrows():
+                    if j in used:
+                        continue
+                    if row_j["timeframe"] != row_i["timeframe"]:
+                        if abs(row_j["period_days"] - p_i) / p_i < 0.2:
+                            group.append(row_j)
+                            used.add(j)
+                if len(group) > 1:
+                    tfs = [g["timeframe"] for g in group]
+                    avg_period = np.mean([g["period_days"] for g in group])
+                    avg_snr = np.mean([g["snr"] for g in group])
+                    confirmed.append({
+                        "period_days": avg_period,
+                        "confirmed_by": tfs,
+                        "avg_snr": avg_snr,
+                    })
+
+            if confirmed:
+                for c in confirmed:
+                    tfs_str = " & ".join(c["confirmed_by"])
+                    print(f"    {c['period_days']:.1f}d 周期被 {tfs_str} 共同确认 (平均SNR={c['avg_snr']:.2f})")
+            else:
+                print("    未发现跨时间框架一致确认的周期")
+        else:
+            print("    各时间框架均未检测到显著峰值")
+    else:
+        print("    可用时间框架不足，无法进行一致性检查")
+
+    print("\n" + "=" * 70)
+    print("FFT分析完成")
+    print(f"图表已保存至: {output_path.resolve()}")
+    print("=" * 70)
+
+    # ----------------------------------------------------------
+    # 返回结果字典
+    # ----------------------------------------------------------
+    results = {
+        "daily_peaks": peaks_df,
+        "multi_tf_peaks": multi_tf_peaks,
+        "bandpass_variance_ratios": variance_ratios,
+        "bandpass_components": components,
+        "ar1_rho": ar1_rho,
+        "daily_spectrum": {
+            "freqs": daily_result["freqs"],
+            "periods": daily_result["periods"],
+            "power": daily_result["power"],
+            "noise_mean": daily_result["noise_mean"],
+            "noise_threshold": daily_result["noise_threshold"],
+        },
+        "multi_tf_results": tf_results,
+    }
+
+    return results
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == "__main__":
+    from src.data_loader import load_daily
+
+    print("加载BTC日线数据...")
+    df = load_daily()
+    print(f"数据范围: {df.index.min()} ~ {df.index.max()}, 共 {len(df)} 条")
+
+    results = run_fft_analysis(df, output_dir="output/fft")
diff --git a/src/fractal_analysis.py b/src/fractal_analysis.py
new file mode 100644
index 0000000..5fc4dc4
--- /dev/null
+++ b/src/fractal_analysis.py
@@ -0,0 +1,645 @@
+"""
+分形维数与自相似性分析模块
+========================
+通过盒计数法（Box-Counting）计算BTC价格序列的分形维数，
+并通过蒙特卡洛模拟与随机游走对比，检验BTC价格是否具有显著不同的分形特征。
+
+核心功能：
+- 盒计数法（Box-Counting Dimension）计算分形维数
+- 蒙特卡洛模拟对比（Z检验）
+- 多尺度自相似性分析
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from pathlib import Path
+from typing import Tuple, Dict, List, Optional
+from scipy import stats
+
+import sys
+sys.path.insert(0, str(Path(__file__).parent.parent))
+from src.data_loader import load_klines
+from src.preprocessing import log_returns
+
+
+# ============================================================
+# 盒计数法（Box-Counting Dimension）
+# ============================================================
+def box_counting_dimension(prices: np.ndarray,
+                           num_scales: int = 30,
+                           min_boxes: int = 5,
+                           max_boxes: int = None) -> Tuple[float, np.ndarray, np.ndarray]:
+    """
+    盒计数法计算价格序列的分形维数
+
+    方法：
+    1. 将价格序列归一化到 [0,1] x [0,1] 空间
+    2. 在不同尺度(box size)下计数覆盖曲线所需的盒子数
+    3. 通过 log(count) vs log(1/scale) 的线性回归得到分形维数
+
+    Parameters
+    ----------
+    prices : np.ndarray
+        价格序列
+    num_scales : int
+        尺度数量
+    min_boxes : int
+        最小划分数量
+    max_boxes : int, optional
+        最大划分数量，默认为序列长度的1/4
+
+    Returns
+    -------
+    D : float
+        盒计数分形维数
+    log_inv_scales : np.ndarray
+        log(1/scale) 数组
+    log_counts : np.ndarray
+        log(count) 数组
+    """
+    n = len(prices)
+    if max_boxes is None:
+        max_boxes = n // 4
+
+    # 步骤1：归一化到 [0,1] x [0,1]
+    # x轴：时间归一化
+    x = np.linspace(0, 1, n)
+    # y轴：价格归一化
+    y = (prices - prices.min()) / (prices.max() - prices.min())
+
+    # 步骤2：在不同尺度下计数
+    # 生成对数均匀分布的划分数量
+    box_counts_list = np.unique(
+        np.logspace(np.log10(min_boxes), np.log10(max_boxes), num=num_scales).astype(int)
+    )
+
+    log_inv_scales = []
+    log_counts = []
+
+    for num_boxes_per_side in box_counts_list:
+        if num_boxes_per_side < 2:
+            continue
+
+        # 盒子大小（在归一化空间中）
+        box_size = 1.0 / num_boxes_per_side
+
+        # 计算每个数据点所在的盒子编号
+        # x方向：时间划分
+        x_box = np.floor(x / box_size).astype(int)
+        x_box = np.clip(x_box, 0, num_boxes_per_side - 1)
+
+        # y方向：价格划分
+        y_box = np.floor(y / box_size).astype(int)
+        y_box = np.clip(y_box, 0, num_boxes_per_side - 1)
+
+        # 还需要考虑相邻点之间的连线经过的盒子
+        occupied = set()
+        for i in range(n):
+            occupied.add((x_box[i], y_box[i]))
+
+        # 对于相邻点，如果它们不在同一个盒子中，需要插值连接
+        for i in range(n - 1):
+            if x_box[i] == x_box[i + 1] and y_box[i] == y_box[i + 1]:
+                continue
+
+            # 线性插值找出经过的所有盒子
+            steps = max(abs(x_box[i + 1] - x_box[i]), abs(y_box[i + 1] - y_box[i])) + 1
+            if steps <= 1:
+                continue
+
+            for t in np.linspace(0, 1, steps + 1):
+                xi = x[i] + t * (x[i + 1] - x[i])
+                yi = y[i] + t * (y[i + 1] - y[i])
+                bx = int(np.clip(np.floor(xi / box_size), 0, num_boxes_per_side - 1))
+                by = int(np.clip(np.floor(yi / box_size), 0, num_boxes_per_side - 1))
+                occupied.add((bx, by))
+
+        count = len(occupied)
+        if count > 0:
+            log_inv_scales.append(np.log(1.0 / box_size))
+            log_counts.append(np.log(count))
+
+    log_inv_scales = np.array(log_inv_scales)
+    log_counts = np.array(log_counts)
+
+    # 步骤3：线性回归
+    if len(log_inv_scales) < 3:
+        return 1.5, log_inv_scales, log_counts
+
+    coeffs = np.polyfit(log_inv_scales, log_counts, 1)
+    D = coeffs[0]  # 斜率即分形维数
+
+    return D, log_inv_scales, log_counts
+
+
+# ============================================================
+# 蒙特卡洛模拟对比
+# ============================================================
+def generate_random_walk(n: int, seed: Optional[int] = None) -> np.ndarray:
+    """
+    生成一条与BTC价格序列等长的随机游走
+
+    Parameters
+    ----------
+    n : int
+        序列长度
+    seed : int, optional
+        随机种子
+
+    Returns
+    -------
+    np.ndarray
+        随机游走价格序列
+    """
+    if seed is not None:
+        rng = np.random.RandomState(seed)
+    else:
+        rng = np.random.RandomState()
+
+    # 生成标准正态分布的增量
+    increments = rng.randn(n - 1)
+    # 累积求和得到随机游走
+    walk = np.cumsum(increments)
+    # 加上一个正的起始值避免负数
+    walk = walk - walk.min() + 1.0
+    return walk
+
+
+def monte_carlo_fractal_test(prices: np.ndarray, n_simulations: int = 100,
+                              seed: int = 42) -> Dict:
+    """
+    蒙特卡洛模拟检验BTC分形维数是否显著偏离随机游走
+
+    方法：
+    1. 生成n_simulations条随机游走
+    2. 计算每条的分形维数
+    3. 与BTC分形维数做Z检验
+
+    Parameters
+    ----------
+    prices : np.ndarray
+        BTC价格序列
+    n_simulations : int
+        模拟次数（默认100）
+    seed : int
+        随机种子（可重复性）
+
+    Returns
+    -------
+    dict
+        包含BTC分形维数、随机游走分形维数分布、Z检验结果
+    """
+    n = len(prices)
+
+    # 计算BTC分形维数
+    print(f"  计算BTC分形维数...")
+    d_btc, _, _ = box_counting_dimension(prices)
+    print(f"  BTC分形维数: {d_btc:.4f}")
+
+    # 蒙特卡洛模拟
+    print(f"  运行{n_simulations}次随机游走模拟...")
+    d_random = []
+    for i in range(n_simulations):
+        if (i + 1) % 20 == 0:
+            print(f"    进度: {i + 1}/{n_simulations}")
+        rw = generate_random_walk(n, seed=seed + i)
+        d_rw, _, _ = box_counting_dimension(rw)
+        d_random.append(d_rw)
+
+    d_random = np.array(d_random)
+
+    # Z检验：BTC分形维数 vs 随机游走分形维数分布
+    mean_rw = np.mean(d_random)
+    std_rw = np.std(d_random, ddof=1)
+
+    if std_rw > 0:
+        z_score = (d_btc - mean_rw) / std_rw
+        # 双侧p值
+        p_value = 2 * (1 - stats.norm.cdf(abs(z_score)))
+    else:
+        z_score = np.nan
+        p_value = np.nan
+
+    result = {
+        'BTC分形维数': d_btc,
+        '随机游走均值': mean_rw,
+        '随机游走标准差': std_rw,
+        '随机游走范围': (d_random.min(), d_random.max()),
+        'Z统计量': z_score,
+        'p值': p_value,
+        '显著性(α=0.05)': p_value < 0.05 if not np.isnan(p_value) else False,
+        '随机游走分形维数': d_random,
+    }
+
+    return result
+
+
+# ============================================================
+# 多尺度自相似性分析
+# ============================================================
+def multi_scale_self_similarity(prices: np.ndarray,
+                                 scales: List[int] = None) -> Dict:
+    """
+    多尺度自相似性分析：在不同聚合级别下比较统计特征
+
+    方法：
+    对价格序列按不同尺度聚合后，比较收益率分布的统计矩
+    如果序列具有自相似性，其缩放后的统计特征应保持一致
+
+    Parameters
+    ----------
+    prices : np.ndarray
+        价格序列
+    scales : list of int
+        聚合尺度，默认 [1, 2, 5, 10, 20, 50]
+
+    Returns
+    -------
+    dict
+        各尺度下的统计特征
+    """
+    if scales is None:
+        scales = [1, 2, 5, 10, 20, 50]
+
+    results = {}
+
+    for scale in scales:
+        # 对价格序列按scale聚合（每scale个点取一个）
+        aggregated = prices[::scale]
+        if len(aggregated) < 30:
+            continue
+
+        # 计算对数收益率
+        returns = np.diff(np.log(aggregated))
+        if len(returns) < 10:
+            continue
+
+        results[scale] = {
+            '样本量': len(returns),
+            '均值': np.mean(returns),
+            '标准差': np.std(returns),
+            '偏度': float(stats.skew(returns)),
+            '峰度': float(stats.kurtosis(returns)),
+            # 标准差的缩放关系：如果H是Hurst指数，std(scale) ∝ scale^H
+            '标准差(原始)': np.std(returns),
+        }
+
+    # 计算缩放指数：log(std) vs log(scale) 的斜率
+    valid_scales = sorted(results.keys())
+    if len(valid_scales) >= 3:
+        log_scales = np.log(valid_scales)
+        log_stds = np.log([results[s]['标准差'] for s in valid_scales])
+        scaling_exponent = np.polyfit(log_scales, log_stds, 1)[0]
+        scaling_result = {
+            '缩放指数(H估计)': scaling_exponent,
+            '各尺度统计': results,
+        }
+    else:
+        scaling_result = {
+            '缩放指数(H估计)': np.nan,
+            '各尺度统计': results,
+        }
+
+    return scaling_result
+
+
+# ============================================================
+# 可视化函数
+# ============================================================
+def plot_box_counting(log_inv_scales: np.ndarray, log_counts: np.ndarray, D: float,
+                      output_dir: Path, filename: str = "fractal_box_counting.png"):
+    """绘制盒计数法的log-log图"""
+    fig, ax = plt.subplots(figsize=(10, 7))
+
+    # 散点
+    ax.scatter(log_inv_scales, log_counts, color='steelblue', s=40, zorder=3,
+               label='盒计数数据点')
+
+    # 拟合线
+    coeffs = np.polyfit(log_inv_scales, log_counts, 1)
+    fit_line = np.polyval(coeffs, log_inv_scales)
+    ax.plot(log_inv_scales, fit_line, 'r-', linewidth=2,
+            label=f'拟合线 (D = {D:.4f})')
+
+    # 参考线：D=1.5（纯随机游走理论值）
+    ref_line = 1.5 * log_inv_scales + (log_counts[0] - 1.5 * log_inv_scales[0])
+    ax.plot(log_inv_scales, ref_line, 'k--', alpha=0.5, linewidth=1,
+            label='D=1.5 (随机游走理论值)')
+
+    ax.set_xlabel('log(1/ε) - 尺度倒数的对数', fontsize=12)
+    ax.set_ylabel('log(N(ε)) - 盒子数的对数', fontsize=12)
+    ax.set_title(f'BTC 盒计数法分析 (分形维数 D = {D:.4f})', fontsize=13)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+def plot_monte_carlo(mc_results: Dict, output_dir: Path,
+                     filename: str = "fractal_monte_carlo.png"):
+    """绘制蒙特卡洛模拟结果：随机游走分形维数直方图 vs BTC"""
+    fig, ax = plt.subplots(figsize=(10, 7))
+
+    d_random = mc_results['随机游走分形维数']
+    d_btc = mc_results['BTC分形维数']
+
+    # 直方图
+    ax.hist(d_random, bins=20, density=True, alpha=0.7, color='steelblue',
+            edgecolor='white', label=f'随机游走 (n={len(d_random)})')
+
+    # BTC分形维数的竖线
+    ax.axvline(x=d_btc, color='red', linewidth=2.5, linestyle='-',
+               label=f'BTC (D={d_btc:.4f})')
+
+    # 随机游走均值的竖线
+    ax.axvline(x=mc_results['随机游走均值'], color='blue', linewidth=1.5, linestyle='--',
+               label=f'随机游走均值 (D={mc_results["随机游走均值"]:.4f})')
+
+    # 添加正态分布拟合曲线
+    x_range = np.linspace(d_random.min() - 0.05, d_random.max() + 0.05, 200)
+    pdf = stats.norm.pdf(x_range, mc_results['随机游走均值'], mc_results['随机游走标准差'])
+    ax.plot(x_range, pdf, 'b-', alpha=0.5, linewidth=1)
+
+    # 标注统计信息
+    info_text = (
+        f"Z统计量: {mc_results['Z统计量']:.2f}\n"
+        f"p值: {mc_results['p值']:.4f}\n"
+        f"显著性(α=0.05): {'是' if mc_results['显著性(α=0.05)'] else '否'}"
+    )
+    ax.text(0.02, 0.95, info_text, transform=ax.transAxes, fontsize=11,
+            verticalalignment='top', bbox=dict(boxstyle='round', facecolor='lightyellow', alpha=0.8))
+
+    ax.set_xlabel('分形维数 D', fontsize=12)
+    ax.set_ylabel('概率密度', fontsize=12)
+    ax.set_title('BTC分形维数 vs 随机游走蒙特卡洛模拟', fontsize=13)
+    ax.legend(fontsize=11, loc='upper right')
+    ax.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+def plot_self_similarity(scaling_result: Dict, output_dir: Path,
+                         filename: str = "fractal_self_similarity.png"):
+    """绘制多尺度自相似性分析图"""
+    scale_stats = scaling_result['各尺度统计']
+    if not scale_stats:
+        print("  没有可绘制的自相似性结果")
+        return
+
+    scales = sorted(scale_stats.keys())
+    stds = [scale_stats[s]['标准差'] for s in scales]
+    skews = [scale_stats[s]['偏度'] for s in scales]
+    kurts = [scale_stats[s]['峰度'] for s in scales]
+
+    fig, axes = plt.subplots(1, 3, figsize=(18, 6))
+
+    # 图1：log(std) vs log(scale) — 缩放关系
+    ax1 = axes[0]
+    log_scales = np.log(scales)
+    log_stds = np.log(stds)
+
+    ax1.scatter(log_scales, log_stds, color='steelblue', s=60, zorder=3)
+
+    if len(log_scales) >= 3:
+        coeffs = np.polyfit(log_scales, log_stds, 1)
+        fit_line = np.polyval(coeffs, log_scales)
+        ax1.plot(log_scales, fit_line, 'r-', linewidth=2,
+                 label=f'拟合斜率 H≈{coeffs[0]:.4f}')
+
+    # 参考线 H=0.5
+    ref_line = 0.5 * log_scales + (log_stds[0] - 0.5 * log_scales[0])
+    ax1.plot(log_scales, ref_line, 'k--', alpha=0.5, label='H=0.5 参考线')
+
+    ax1.set_xlabel('log(聚合尺度)', fontsize=11)
+    ax1.set_ylabel('log(标准差)', fontsize=11)
+    ax1.set_title('缩放关系 (标准差 vs 尺度)', fontsize=12)
+    ax1.legend(fontsize=10)
+    ax1.grid(True, alpha=0.3)
+
+    # 图2：偏度随尺度变化
+    ax2 = axes[1]
+    ax2.bar(range(len(scales)), skews, color='coral', alpha=0.8)
+    ax2.set_xticks(range(len(scales)))
+    ax2.set_xticklabels([str(s) for s in scales])
+    ax2.axhline(y=0, color='black', linestyle='--', alpha=0.5)
+    ax2.set_xlabel('聚合尺度', fontsize=11)
+    ax2.set_ylabel('偏度', fontsize=11)
+    ax2.set_title('偏度随尺度变化', fontsize=12)
+    ax2.grid(True, alpha=0.3, axis='y')
+
+    # 图3：峰度随尺度变化
+    ax3 = axes[2]
+    ax3.bar(range(len(scales)), kurts, color='seagreen', alpha=0.8)
+    ax3.set_xticks(range(len(scales)))
+    ax3.set_xticklabels([str(s) for s in scales])
+    ax3.axhline(y=0, color='black', linestyle='--', alpha=0.5, label='正态分布峰度=0')
+    ax3.set_xlabel('聚合尺度', fontsize=11)
+    ax3.set_ylabel('超额峰度', fontsize=11)
+    ax3.set_title('峰度随尺度变化', fontsize=12)
+    ax3.legend(fontsize=10)
+    ax3.grid(True, alpha=0.3, axis='y')
+
+    fig.suptitle(f'BTC 多尺度自相似性分析 (缩放指数 H≈{scaling_result["缩放指数(H估计)"]:.4f})',
+                 fontsize=14, y=1.02)
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+# ============================================================
+# 主入口函数
+# ============================================================
+def run_fractal_analysis(df: pd.DataFrame, output_dir: str = "output/fractal") -> Dict:
+    """
+    分形维数与自相似性综合分析主入口
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        K线数据（需包含 'close' 列和DatetimeIndex索引）
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        包含所有分析结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    results = {}
+
+    print("=" * 70)
+    print("分形维数与自相似性分析")
+    print("=" * 70)
+
+    # ----------------------------------------------------------
+    # 1. 准备数据
+    # ----------------------------------------------------------
+    prices = df['close'].dropna().values
+
+    print(f"\n数据概况:")
+    print(f"  时间范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"  价格序列长度: {len(prices)}")
+    print(f"  价格范围: {prices.min():.2f} ~ {prices.max():.2f}")
+
+    # ----------------------------------------------------------
+    # 2. 盒计数法分形维数
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【1】盒计数法 (Box-Counting Dimension)")
+    print("-" * 50)
+
+    D, log_inv_scales, log_counts = box_counting_dimension(prices)
+    results['盒计数分形维数'] = D
+
+    print(f"  BTC分形维数: D = {D:.4f}")
+    print(f"  理论参考值:")
+    print(f"    D = 1.0: 光滑曲线（完全可预测）")
+    print(f"    D = 1.5: 纯随机游走（布朗运动）")
+    print(f"    D = 2.0: 完全填充平面（极端不规则）")
+
+    if D < 1.3:
+        interpretation = "序列非常光滑，可能存在强趋势特征"
+    elif D < 1.45:
+        interpretation = "序列较为光滑，具有一定趋势持续性"
+    elif D < 1.55:
+        interpretation = "序列接近随机游走特征"
+    elif D < 1.7:
+        interpretation = "序列较为粗糙，具有一定均值回归倾向"
+    else:
+        interpretation = "序列非常不规则，高度波动"
+
+    print(f"  BTC解读: {interpretation}")
+    results['维数解读'] = interpretation
+
+    # 分形维数与Hurst指数的关系: D = 2 - H
+    h_from_d = 2.0 - D
+    print(f"\n  由分形维数推算Hurst指数 (D = 2 - H):")
+    print(f"    H ≈ {h_from_d:.4f}")
+    results['Hurst(从D推算)'] = h_from_d
+
+    # 绘制盒计数log-log图
+    plot_box_counting(log_inv_scales, log_counts, D, output_dir)
+
+    # ----------------------------------------------------------
+    # 3. 蒙特卡洛模拟对比
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【2】蒙特卡洛模拟对比 (100次随机游走)")
+    print("-" * 50)
+
+    mc_results = monte_carlo_fractal_test(prices, n_simulations=100, seed=42)
+    results['蒙特卡洛检验'] = {
+        k: v for k, v in mc_results.items() if k != '随机游走分形维数'
+    }
+
+    print(f"\n  结果汇总:")
+    print(f"    BTC分形维数:     D = {mc_results['BTC分形维数']:.4f}")
+    print(f"    随机游走均值:    D = {mc_results['随机游走均值']:.4f} ± {mc_results['随机游走标准差']:.4f}")
+    print(f"    随机游走范围:    [{mc_results['随机游走范围'][0]:.4f}, {mc_results['随机游走范围'][1]:.4f}]")
+    print(f"    Z统计量:         {mc_results['Z统计量']:.4f}")
+    print(f"    p值:             {mc_results['p值']:.6f}")
+    print(f"    显著性(α=0.05):  {'是 - BTC与随机游走显著不同' if mc_results['显著性(α=0.05)'] else '否 - 无法拒绝随机游走假设'}")
+
+    # 绘制蒙特卡洛结果图
+    plot_monte_carlo(mc_results, output_dir)
+
+    # ----------------------------------------------------------
+    # 4. 多尺度自相似性分析
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【3】多尺度自相似性分析")
+    print("-" * 50)
+
+    scaling_result = multi_scale_self_similarity(prices, scales=[1, 2, 5, 10, 20, 50])
+    results['多尺度自相似性'] = {
+        k: v for k, v in scaling_result.items() if k != '各尺度统计'
+    }
+    results['多尺度自相似性']['缩放指数(H估计)'] = scaling_result['缩放指数(H估计)']
+
+    print(f"\n  缩放指数 (波动率缩放关系 H估计): {scaling_result['缩放指数(H估计)']:.4f}")
+    print(f"  各尺度统计特征:")
+    for scale, stat in sorted(scaling_result['各尺度统计'].items()):
+        print(f"    尺度={scale:3d}: 样本={stat['样本量']:5d}, "
+              f"std={stat['标准差']:.6f}, "
+              f"偏度={stat['偏度']:.4f}, "
+              f"峰度={stat['峰度']:.4f}")
+
+    # 自相似性判定
+    scale_stats = scaling_result['各尺度统计']
+    if scale_stats:
+        valid_scales = sorted(scale_stats.keys())
+        if len(valid_scales) >= 2:
+            kurts = [scale_stats[s]['峰度'] for s in valid_scales]
+            # 如果峰度随尺度增大而趋向0（正态），说明大尺度下趋向正态
+            if all(k > 1.0 for k in kurts):
+                print("\n  自相似性判定: 所有尺度均呈现超额峰度（尖峰厚尾），")
+                print("  表明BTC收益率分布在各尺度下均偏离正态分布，具有分形特征")
+            elif kurts[-1] < kurts[0] * 0.5:
+                print("\n  自相似性判定: 峰度随聚合尺度增大而显著下降，")
+                print("  表明大尺度下收益率趋于正态，自相似性有限")
+            else:
+                print("\n  自相似性判定: 峰度随尺度变化不大，具有一定自相似性")
+
+    # 绘制自相似性图
+    plot_self_similarity(scaling_result, output_dir)
+
+    # ----------------------------------------------------------
+    # 5. 总结
+    # ----------------------------------------------------------
+    print("\n" + "=" * 70)
+    print("分析总结")
+    print("=" * 70)
+    print(f"  盒计数分形维数: D = {D:.4f}")
+    print(f"  由D推算Hurst指数: H = {h_from_d:.4f}")
+    print(f"  维数解读: {interpretation}")
+    print(f"\n  蒙特卡洛检验:")
+    if mc_results['显著性(α=0.05)']:
+        print(f"    BTC价格序列的分形维数与纯随机游走存在显著差异 (p={mc_results['p值']:.6f})")
+        if D < mc_results['随机游走均值']:
+            print(f"    BTC的D({D:.4f}) < 随机游走的D({mc_results['随机游走均值']:.4f})，")
+            print("    表明BTC价格比纯随机游走更「光滑」，即存在趋势持续性")
+        else:
+            print(f"    BTC的D({D:.4f}) > 随机游走的D({mc_results['随机游走均值']:.4f})，")
+            print("    表明BTC价格比纯随机游走更「粗糙」，即存在均值回归特征")
+    else:
+        print(f"    无法在5%显著性水平下拒绝BTC为随机游走的假设 (p={mc_results['p值']:.6f})")
+
+    print(f"\n  波动率缩放指数: H ≈ {scaling_result['缩放指数(H估计)']:.4f}")
+    print(f"    H > 0.5: 波动率超线性增长 → 趋势持续性")
+    print(f"    H < 0.5: 波动率亚线性增长 → 均值回归性")
+    print(f"    H ≈ 0.5: 波动率线性增长 → 随机游走")
+
+    print(f"\n  图表已保存至: {output_dir.resolve()}")
+    print("=" * 70)
+
+    return results
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+if __name__ == "__main__":
+    from data_loader import load_daily
+
+    print("加载BTC日线数据...")
+    df = load_daily()
+    print(f"数据加载完成: {len(df)} 条记录")
+
+    results = run_fractal_analysis(df, output_dir="output/fractal")
diff --git a/src/halving_analysis.py b/src/halving_analysis.py
new file mode 100644
index 0000000..c6be485
--- /dev/null
+++ b/src/halving_analysis.py
@@ -0,0 +1,546 @@
+"""BTC 减半周期分析模块 - 减半前后价格行为、波动率、累计收益对比"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+import matplotlib.ticker as mticker
+from pathlib import Path
+from scipy import stats
+
+# 中文显示配置
+plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+plt.rcParams['axes.unicode_minus'] = False
+
+# BTC 减半日期（数据范围 2017-2026 内的两次减半）
+HALVING_DATES = [
+    pd.Timestamp('2020-05-11'),
+    pd.Timestamp('2024-04-20'),
+]
+HALVING_LABELS = ['第三次减半 (2020-05-11)', '第四次减半 (2024-04-20)']
+
+# 分析窗口：减半前后各 500 天
+WINDOW_DAYS = 500
+
+
+def _extract_halving_window(df: pd.DataFrame, halving_date: pd.Timestamp,
+                            window: int = WINDOW_DAYS):
+    """
+    提取减半日期前后的数据窗口。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据（DatetimeIndex 索引，含 close 和 log_return 列）
+    halving_date : pd.Timestamp
+        减半日期
+    window : int
+        前后各取的天数
+
+    Returns
+    -------
+    pd.DataFrame
+        窗口数据，附加 'days_from_halving' 列（减半日=0）
+    """
+    start = halving_date - pd.Timedelta(days=window)
+    end = halving_date + pd.Timedelta(days=window)
+    mask = (df.index >= start) & (df.index <= end)
+    window_df = df.loc[mask].copy()
+
+    # 计算距减半日的天数差
+    window_df['days_from_halving'] = (window_df.index - halving_date).days
+    return window_df
+
+
+def _normalize_price(window_df: pd.DataFrame, halving_date: pd.Timestamp):
+    """
+    以减半日价格为基准（=100）归一化价格。
+
+    Parameters
+    ----------
+    window_df : pd.DataFrame
+        窗口数据（含 close 列）
+    halving_date : pd.Timestamp
+        减半日期
+
+    Returns
+    -------
+    pd.Series
+        归一化后的价格序列（减半日=100）
+    """
+    # 找到距减半日最近的交易日
+    idx = window_df.index.get_indexer([halving_date], method='nearest')[0]
+    base_price = window_df['close'].iloc[idx]
+    return (window_df['close'] / base_price) * 100
+
+
+def analyze_normalized_trajectories(windows: list, output_dir: Path):
+    """
+    绘制归一化价格轨迹叠加图。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        每个元素包含 'df', 'normalized', 'label', 'halving_date'
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "-" * 60)
+    print("【归一化价格轨迹叠加】")
+    print("-" * 60)
+
+    fig, ax = plt.subplots(figsize=(14, 7))
+    colors = ['#2980b9', '#e74c3c']
+    linestyles = ['-', '--']
+
+    for i, w in enumerate(windows):
+        days = w['df']['days_from_halving']
+        normalized = w['normalized']
+        ax.plot(days, normalized, color=colors[i], linestyle=linestyles[i],
+                linewidth=1.5, label=w['label'], alpha=0.85)
+
+    ax.axvline(x=0, color='gold', linestyle='-', linewidth=2,
+               alpha=0.8, label='减半日')
+    ax.axhline(y=100, color='grey', linestyle=':', alpha=0.4)
+
+    ax.set_title('BTC 减半周期 - 归一化价格轨迹叠加（减半日=100）', fontsize=14)
+    ax.set_xlabel(f'距减半日天数（前后各 {WINDOW_DAYS} 天）')
+    ax.set_ylabel('归一化价格')
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig_path = output_dir / 'halving_normalized_trajectories.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"图表已保存: {fig_path}")
+
+
+def analyze_pre_post_returns(windows: list, output_dir: Path):
+    """
+    对比减半前后平均收益率，进行 Welch's t 检验。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        窗口数据列表
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "-" * 60)
+    print("【减半前后收益率对比 & Welch's t 检验】")
+    print("-" * 60)
+
+    all_pre_returns = []
+    all_post_returns = []
+
+    for w in windows:
+        df_w = w['df']
+        pre = df_w.loc[df_w['days_from_halving'] < 0, 'log_return'].dropna()
+        post = df_w.loc[df_w['days_from_halving'] > 0, 'log_return'].dropna()
+        all_pre_returns.append(pre)
+        all_post_returns.append(post)
+
+        print(f"\n{w['label']}:")
+        print(f"  减半前 {WINDOW_DAYS}天: 均值={pre.mean():.6f}, 标准差={pre.std():.6f}, "
+              f"中位数={pre.median():.6f}, N={len(pre)}")
+        print(f"  减半后 {WINDOW_DAYS}天: 均值={post.mean():.6f}, 标准差={post.std():.6f}, "
+              f"中位数={post.median():.6f}, N={len(post)}")
+
+        # 单周期 Welch's t-test
+        if len(pre) >= 3 and len(post) >= 3:
+            t_stat, p_val = stats.ttest_ind(pre, post, equal_var=False)
+            print(f"  Welch's t 检验: t={t_stat:.4f}, p={p_val:.6f}")
+            if p_val < 0.05:
+                print("    => 减半前后收益率在 5% 水平下存在显著差异")
+            else:
+                print("    => 减半前后收益率在 5% 水平下无显著差异")
+
+    # 合并所有周期的前后收益率进行总体检验
+    combined_pre = pd.concat(all_pre_returns)
+    combined_post = pd.concat(all_post_returns)
+    print(f"\n--- 合并所有减半周期 ---")
+    print(f"  合并减半前: 均值={combined_pre.mean():.6f}, N={len(combined_pre)}")
+    print(f"  合并减半后: 均值={combined_post.mean():.6f}, N={len(combined_post)}")
+    t_stat_all, p_val_all = stats.ttest_ind(combined_pre, combined_post, equal_var=False)
+    print(f"  合并 Welch's t 检验: t={t_stat_all:.4f}, p={p_val_all:.6f}")
+
+    # --- 可视化: 减半前后收益率对比柱状图（含置信区间） ---
+    fig, axes = plt.subplots(1, len(windows), figsize=(7 * len(windows), 6))
+    if len(windows) == 1:
+        axes = [axes]
+
+    for i, w in enumerate(windows):
+        df_w = w['df']
+        pre = df_w.loc[df_w['days_from_halving'] < 0, 'log_return'].dropna()
+        post = df_w.loc[df_w['days_from_halving'] > 0, 'log_return'].dropna()
+
+        means = [pre.mean(), post.mean()]
+        # 95% 置信区间
+        ci_pre = stats.t.interval(0.95, len(pre) - 1, loc=pre.mean(), scale=pre.sem())
+        ci_post = stats.t.interval(0.95, len(post) - 1, loc=post.mean(), scale=post.sem())
+        errors = [
+            [means[0] - ci_pre[0], means[1] - ci_post[0]],
+            [ci_pre[1] - means[0], ci_post[1] - means[1]],
+        ]
+
+        colors_bar = ['#3498db', '#e67e22']
+        axes[i].bar(['减半前', '减半后'], means, yerr=errors, color=colors_bar,
+                     alpha=0.8, capsize=5, edgecolor='black', linewidth=0.5)
+        axes[i].axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+        axes[i].set_title(w['label'] + '\n日均对数收益率（95% CI）', fontsize=12)
+        axes[i].set_ylabel('平均对数收益率')
+
+    plt.tight_layout()
+    fig_path = output_dir / 'halving_pre_post_returns.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+
+def analyze_cumulative_returns(windows: list, output_dir: Path):
+    """
+    绘制减半后累计收益率对比。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        窗口数据列表
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "-" * 60)
+    print("【减半后累计收益率对比】")
+    print("-" * 60)
+
+    fig, ax = plt.subplots(figsize=(14, 7))
+    colors = ['#2980b9', '#e74c3c']
+
+    for i, w in enumerate(windows):
+        df_w = w['df']
+        post = df_w.loc[df_w['days_from_halving'] >= 0].copy()
+        if len(post) == 0:
+            print(f"  {w['label']}: 无减半后数据")
+            continue
+
+        # 累计对数收益率
+        post_returns = post['log_return'].fillna(0)
+        cum_return = post_returns.cumsum()
+        # 转为百分比形式
+        cum_return_pct = (np.exp(cum_return) - 1) * 100
+
+        days = post['days_from_halving']
+        ax.plot(days, cum_return_pct, color=colors[i], linewidth=1.5,
+                label=w['label'], alpha=0.85)
+
+        # 输出关键节点
+        final_cum = cum_return_pct.iloc[-1] if len(cum_return_pct) > 0 else 0
+        print(f"  {w['label']}: 减半后 {len(post)} 天累计收益率 = {final_cum:.2f}%")
+
+        # 输出一些关键时间节点的累计收益
+        for target_day in [30, 90, 180, 365, WINDOW_DAYS]:
+            mask_day = days <= target_day
+            if mask_day.any():
+                val = cum_return_pct.loc[mask_day].iloc[-1]
+                actual_day = days.loc[mask_day].iloc[-1]
+                print(f"    第 {actual_day} 天: {val:.2f}%")
+
+    ax.axhline(y=0, color='grey', linestyle=':', alpha=0.4)
+    ax.set_title('BTC 减半后累计收益率对比', fontsize=14)
+    ax.set_xlabel('距减半日天数')
+    ax.set_ylabel('累计收益率 (%)')
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+    ax.yaxis.set_major_formatter(mticker.FuncFormatter(lambda x, _: f'{x:,.0f}%'))
+
+    fig_path = output_dir / 'halving_cumulative_returns.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n图表已保存: {fig_path}")
+
+
+def analyze_volatility_change(windows: list, output_dir: Path):
+    """
+    Levene 检验：减半前后波动率变化。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        窗口数据列表
+    output_dir : Path
+        图片保存目录
+    """
+    print("\n" + "-" * 60)
+    print("【减半前后波动率变化 - Levene 检验】")
+    print("-" * 60)
+
+    for w in windows:
+        df_w = w['df']
+        pre = df_w.loc[df_w['days_from_halving'] < 0, 'log_return'].dropna()
+        post = df_w.loc[df_w['days_from_halving'] > 0, 'log_return'].dropna()
+
+        print(f"\n{w['label']}:")
+        print(f"  减半前波动率（日标准差）: {pre.std():.6f} "
+              f"(年化: {pre.std() * np.sqrt(365):.4f})")
+        print(f"  减半后波动率（日标准差）: {post.std():.6f} "
+              f"(年化: {post.std() * np.sqrt(365):.4f})")
+
+        if len(pre) >= 3 and len(post) >= 3:
+            lev_stat, lev_p = stats.levene(pre, post, center='median')
+            print(f"  Levene 检验: W={lev_stat:.4f}, p={lev_p:.6f}")
+            if lev_p < 0.05:
+                print("    => 在 5% 水平下，减半前后波动率存在显著变化")
+            else:
+                print("    => 在 5% 水平下，减半前后波动率无显著变化")
+
+
+def analyze_inter_cycle_correlation(windows: list):
+    """
+    两个减半周期归一化轨迹的 Pearson 相关系数。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        窗口数据列表（需要至少2个周期）
+    """
+    print("\n" + "-" * 60)
+    print("【周期间轨迹相关性 - Pearson 相关】")
+    print("-" * 60)
+
+    if len(windows) < 2:
+        print("  仅有1个周期，无法计算周期间相关性。")
+        return
+
+    # 按照 days_from_halving 对齐两个周期
+    w1, w2 = windows[0], windows[1]
+    df1 = w1['df'][['days_from_halving']].copy()
+    df1['norm_price_1'] = w1['normalized'].values
+
+    df2 = w2['df'][['days_from_halving']].copy()
+    df2['norm_price_2'] = w2['normalized'].values
+
+    # 以 days_from_halving 为键进行内连接
+    merged = pd.merge(df1, df2, on='days_from_halving', how='inner')
+
+    if len(merged) < 10:
+        print(f"  重叠天数过少（{len(merged)}天），无法可靠计算相关性。")
+        return
+
+    r, p_val = stats.pearsonr(merged['norm_price_1'], merged['norm_price_2'])
+    print(f"  重叠天数: {len(merged)}")
+    print(f"  Pearson 相关系数: r={r:.4f}, p={p_val:.6f}")
+
+    if abs(r) > 0.7:
+        print("  => 两个减半周期的价格轨迹呈强相关")
+    elif abs(r) > 0.4:
+        print("  => 两个减半周期的价格轨迹呈中等相关")
+    else:
+        print("  => 两个减半周期的价格轨迹相关性较弱")
+
+    # 分别看减半前和减半后的相关性
+    pre_merged = merged[merged['days_from_halving'] < 0]
+    post_merged = merged[merged['days_from_halving'] > 0]
+
+    if len(pre_merged) >= 10:
+        r_pre, p_pre = stats.pearsonr(pre_merged['norm_price_1'], pre_merged['norm_price_2'])
+        print(f"  减半前轨迹相关性: r={r_pre:.4f}, p={p_pre:.6f} (N={len(pre_merged)})")
+
+    if len(post_merged) >= 10:
+        r_post, p_post = stats.pearsonr(post_merged['norm_price_1'], post_merged['norm_price_2'])
+        print(f"  减半后轨迹相关性: r={r_post:.4f}, p={p_post:.6f} (N={len(post_merged)})")
+
+
+# --------------------------------------------------------------------------
+# 主入口
+# --------------------------------------------------------------------------
+def run_halving_analysis(
+    df: pd.DataFrame,
+    output_dir: str = 'output/halving',
+):
+    """
+    BTC 减半周期分析主入口。
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线数据，已通过 add_derived_features 添加衍生特征（含 close、log_return 列）
+    output_dir : str or Path
+        输出目录
+
+    Notes
+    -----
+    重要局限性: 数据范围内仅含2次减半事件（2020、2024），样本量极少，
+    统计检验的功效（power）很低，结论仅供参考，不能作为因果推断依据。
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("\n" + "#" * 70)
+    print("#  BTC 减半周期分析 (Halving Cycle Analysis)")
+    print("#" * 70)
+
+    # ===== 重要局限性说明 =====
+    print("\n⚠️  重要局限性说明:")
+    print(f"  本分析仅覆盖 {len(HALVING_DATES)} 次减半事件（样本量极少）。")
+    print("  统计检验的功效（statistical power）很低，")
+    print("  任何「显著性」结论都应谨慎解读，不能作为因果推断依据。")
+    print("  结果主要用于描述性分析和模式探索。\n")
+
+    # 提取每次减半的窗口数据
+    windows = []
+    for i, (hdate, hlabel) in enumerate(zip(HALVING_DATES, HALVING_LABELS)):
+        w_df = _extract_halving_window(df, hdate, WINDOW_DAYS)
+        if len(w_df) == 0:
+            print(f"[警告] {hlabel} 窗口内无数据，跳过。")
+            continue
+
+        normalized = _normalize_price(w_df, hdate)
+
+        print(f"周期 {i + 1}: {hlabel}")
+        print(f"  数据范围: {w_df.index.min().date()} ~ {w_df.index.max().date()}")
+        print(f"  数据量: {len(w_df)} 天")
+        print(f"  减半日价格: {w_df['close'].iloc[w_df.index.get_indexer([hdate], method='nearest')[0]]:.2f} USDT")
+
+        windows.append({
+            'df': w_df,
+            'normalized': normalized,
+            'label': hlabel,
+            'halving_date': hdate,
+        })
+
+    if len(windows) == 0:
+        print("[错误] 无有效减半窗口数据，分析中止。")
+        return
+
+    # 1. 归一化价格轨迹叠加
+    analyze_normalized_trajectories(windows, output_dir)
+
+    # 2. 减半前后收益率对比
+    analyze_pre_post_returns(windows, output_dir)
+
+    # 3. 减半后累计收益率
+    analyze_cumulative_returns(windows, output_dir)
+
+    # 4. 波动率变化 (Levene 检验)
+    analyze_volatility_change(windows, output_dir)
+
+    # 5. 周期间轨迹相关性
+    analyze_inter_cycle_correlation(windows)
+
+    # ===== 综合可视化: 三合一图 =====
+    _plot_combined_summary(windows, output_dir)
+
+    print("\n" + "#" * 70)
+    print("#  减半周期分析完成")
+    print(f"#  注意: 仅 {len(windows)} 个周期，结论统计功效有限")
+    print("#" * 70)
+
+
+def _plot_combined_summary(windows: list, output_dir: Path):
+    """
+    综合图: 归一化轨迹 + 减半前后收益率柱状图 + 累计收益率对比。
+
+    Parameters
+    ----------
+    windows : list[dict]
+        窗口数据列表
+    output_dir : Path
+        图片保存目录
+    """
+    fig, axes = plt.subplots(2, 2, figsize=(16, 12))
+    colors = ['#2980b9', '#e74c3c']
+    linestyles = ['-', '--']
+
+    # (0,0) 归一化轨迹
+    ax = axes[0, 0]
+    for i, w in enumerate(windows):
+        days = w['df']['days_from_halving']
+        ax.plot(days, w['normalized'], color=colors[i], linestyle=linestyles[i],
+                linewidth=1.5, label=w['label'], alpha=0.85)
+    ax.axvline(x=0, color='gold', linewidth=2, alpha=0.8, label='减半日')
+    ax.axhline(y=100, color='grey', linestyle=':', alpha=0.4)
+    ax.set_title('归一化价格轨迹（减半日=100）', fontsize=12)
+    ax.set_xlabel('距减半日天数')
+    ax.set_ylabel('归一化价格')
+    ax.legend(fontsize=9)
+    ax.grid(True, alpha=0.3)
+
+    # (0,1) 减半前后日均收益率
+    ax = axes[0, 1]
+    x_pos = np.arange(len(windows))
+    width = 0.35
+    pre_means, post_means, pre_errs, post_errs = [], [], [], []
+    for w in windows:
+        df_w = w['df']
+        pre = df_w.loc[df_w['days_from_halving'] < 0, 'log_return'].dropna()
+        post = df_w.loc[df_w['days_from_halving'] > 0, 'log_return'].dropna()
+        pre_means.append(pre.mean())
+        post_means.append(post.mean())
+        pre_errs.append(pre.sem() * 1.96)  # 95% CI
+        post_errs.append(post.sem() * 1.96)
+
+    ax.bar(x_pos - width / 2, pre_means, width, yerr=pre_errs, label='减半前',
+           color='#3498db', alpha=0.8, capsize=4, edgecolor='black', linewidth=0.5)
+    ax.bar(x_pos + width / 2, post_means, width, yerr=post_errs, label='减半后',
+           color='#e67e22', alpha=0.8, capsize=4, edgecolor='black', linewidth=0.5)
+    ax.set_xticks(x_pos)
+    ax.set_xticklabels([w['label'].split('(')[0].strip() for w in windows], fontsize=9)
+    ax.axhline(y=0, color='grey', linestyle='--', alpha=0.5)
+    ax.set_title('减半前后日均对数收益率（95% CI）', fontsize=12)
+    ax.set_ylabel('平均对数收益率')
+    ax.legend(fontsize=9)
+
+    # (1,0) 累计收益率
+    ax = axes[1, 0]
+    for i, w in enumerate(windows):
+        df_w = w['df']
+        post = df_w.loc[df_w['days_from_halving'] >= 0].copy()
+        if len(post) == 0:
+            continue
+        cum_ret = post['log_return'].fillna(0).cumsum()
+        cum_ret_pct = (np.exp(cum_ret) - 1) * 100
+        ax.plot(post['days_from_halving'], cum_ret_pct, color=colors[i],
+                linewidth=1.5, label=w['label'], alpha=0.85)
+    ax.axhline(y=0, color='grey', linestyle=':', alpha=0.4)
+    ax.set_title('减半后累计收益率对比', fontsize=12)
+    ax.set_xlabel('距减半日天数')
+    ax.set_ylabel('累计收益率 (%)')
+    ax.legend(fontsize=9)
+    ax.grid(True, alpha=0.3)
+    ax.yaxis.set_major_formatter(mticker.FuncFormatter(lambda x, _: f'{x:,.0f}%'))
+
+    # (1,1) 波动率对比（滚动30天）
+    ax = axes[1, 1]
+    for i, w in enumerate(windows):
+        df_w = w['df']
+        rolling_vol = df_w['log_return'].rolling(30).std() * np.sqrt(365)
+        ax.plot(df_w['days_from_halving'], rolling_vol, color=colors[i],
+                linewidth=1.2, label=w['label'], alpha=0.8)
+    ax.axvline(x=0, color='gold', linewidth=2, alpha=0.8, label='减半日')
+    ax.set_title('滚动30天年化波动率', fontsize=12)
+    ax.set_xlabel('距减半日天数')
+    ax.set_ylabel('年化波动率')
+    ax.legend(fontsize=9)
+    ax.grid(True, alpha=0.3)
+
+    plt.suptitle('BTC 减半周期综合分析', fontsize=15, y=1.01)
+    plt.tight_layout()
+    fig_path = output_dir / 'halving_combined_summary.png'
+    fig.savefig(fig_path, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"\n综合图表已保存: {fig_path}")
+
+
+# --------------------------------------------------------------------------
+# 可独立运行
+# --------------------------------------------------------------------------
+if __name__ == '__main__':
+    from data_loader import load_daily
+    from preprocessing import add_derived_features
+
+    # 加载数据
+    df_daily = load_daily()
+    df_daily = add_derived_features(df_daily)
+
+    run_halving_analysis(df_daily, output_dir='output/halving')
diff --git a/src/hurst_analysis.py b/src/hurst_analysis.py
new file mode 100644
index 0000000..87e111d
--- /dev/null
+++ b/src/hurst_analysis.py
@@ -0,0 +1,633 @@
+"""
+Hurst指数分析模块
+================
+通过R/S分析和DFA（去趋势波动分析）计算Hurst指数，
+评估BTC价格序列的长程依赖性和市场状态（趋势/均值回归/随机游走）。
+
+核心功能：
+- R/S (Rescaled Range) 分析
+- DFA (Detrended Fluctuation Analysis) via nolds
+- R/S 与 DFA 交叉验证
+- 滚动窗口Hurst指数追踪市场状态变化
+- 多时间框架Hurst对比分析
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+import matplotlib.dates as mdates
+try:
+    import nolds
+    HAS_NOLDS = True
+except Exception:
+    HAS_NOLDS = False
+from pathlib import Path
+from typing import Tuple, Dict, List, Optional
+
+import sys
+sys.path.insert(0, str(Path(__file__).parent.parent))
+from src.data_loader import load_klines
+from src.preprocessing import log_returns
+
+
+# ============================================================
+# Hurst指数判定标准
+# ============================================================
+TREND_THRESHOLD = 0.55       # H > 0.55 → 趋势性（持续性）
+MEAN_REV_THRESHOLD = 0.45    # H < 0.45 → 均值回归（反持续性）
+# 0.45 <= H <= 0.55 → 近似随机游走
+
+
+def interpret_hurst(h: float) -> str:
+    """根据Hurst指数值给出市场状态解读"""
+    if h > TREND_THRESHOLD:
+        return f"趋势性 (H={h:.4f} > {TREND_THRESHOLD})：序列具有长程正相关，价格趋势倾向于持续"
+    elif h < MEAN_REV_THRESHOLD:
+        return f"均值回归 (H={h:.4f} < {MEAN_REV_THRESHOLD})：序列具有长程负相关，价格倾向于反转"
+    else:
+        return f"随机游走 (H={h:.4f} ≈ 0.5)：序列近似无记忆，价格变动近似独立"
+
+
+# ============================================================
+# R/S (Rescaled Range) 分析
+# ============================================================
+def _rs_for_segment(segment: np.ndarray) -> float:
+    """计算单个分段的R/S统计量"""
+    n = len(segment)
+    if n < 2:
+        return np.nan
+
+    # 计算均值偏差的累积和
+    mean_val = np.mean(segment)
+    deviations = segment - mean_val
+    cumulative = np.cumsum(deviations)
+
+    # 极差 R = max(累积偏差) - min(累积偏差)
+    R = np.max(cumulative) - np.min(cumulative)
+
+    # 标准差 S
+    S = np.std(segment, ddof=1)
+    if S == 0:
+        return np.nan
+
+    return R / S
+
+
+def rs_hurst(series: np.ndarray, min_window: int = 10, max_window: Optional[int] = None,
+             num_scales: int = 30) -> Tuple[float, np.ndarray, np.ndarray]:
+    """
+    R/S重标极差分析计算Hurst指数
+
+    Parameters
+    ----------
+    series : np.ndarray
+        时间序列数据（通常为对数收益率）
+    min_window : int
+        最小窗口大小
+    max_window : int, optional
+        最大窗口大小，默认为序列长度的1/4
+    num_scales : int
+        尺度数量
+
+    Returns
+    -------
+    H : float
+        Hurst指数
+    log_ns : np.ndarray
+        log(窗口大小)
+    log_rs : np.ndarray
+        log(平均R/S值)
+    """
+    n = len(series)
+    if max_window is None:
+        max_window = n // 4
+
+    # 生成对数均匀分布的窗口大小
+    window_sizes = np.unique(
+        np.logspace(np.log10(min_window), np.log10(max_window), num=num_scales).astype(int)
+    )
+
+    log_ns = []
+    log_rs = []
+
+    for w in window_sizes:
+        if w < 10 or w > n // 2:
+            continue
+
+        # 将序列分成不重叠的分段
+        num_segments = n // w
+        if num_segments < 1:
+            continue
+
+        rs_values = []
+        for i in range(num_segments):
+            segment = series[i * w: (i + 1) * w]
+            rs_val = _rs_for_segment(segment)
+            if not np.isnan(rs_val):
+                rs_values.append(rs_val)
+
+        if len(rs_values) > 0:
+            mean_rs = np.mean(rs_values)
+            if mean_rs > 0:
+                log_ns.append(np.log(w))
+                log_rs.append(np.log(mean_rs))
+
+    log_ns = np.array(log_ns)
+    log_rs = np.array(log_rs)
+
+    # 线性回归：log(R/S) = H * log(n) + c
+    if len(log_ns) < 3:
+        return 0.5, log_ns, log_rs
+
+    coeffs = np.polyfit(log_ns, log_rs, 1)
+    H = coeffs[0]
+
+    return H, log_ns, log_rs
+
+
+# ============================================================
+# DFA (Detrended Fluctuation Analysis) - 使用nolds库
+# ============================================================
+def dfa_hurst(series: np.ndarray) -> float:
+    """
+    使用nolds库进行DFA分析，返回Hurst指数
+
+    Parameters
+    ----------
+    series : np.ndarray
+        时间序列数据
+
+    Returns
+    -------
+    float
+        DFA估计的Hurst指数（DFA指数α，对于分数布朗运动 α = H + 0.5 - 0.5 = H）
+    """
+    if HAS_NOLDS:
+        # nolds.dfa 返回的是DFA scaling exponent α
+        # 对于对数收益率序列（增量过程），α ≈ H
+        # 对于累积序列（如价格），α ≈ H + 0.5
+        alpha = nolds.dfa(series)
+        return alpha
+    else:
+        # 自实现的简化DFA
+        N = len(series)
+        y = np.cumsum(series - np.mean(series))
+        scales = np.unique(np.logspace(np.log10(4), np.log10(N // 4), 20).astype(int))
+        flucts = []
+        for s in scales:
+            n_seg = N // s
+            if n_seg < 1:
+                continue
+            rms_list = []
+            for i in range(n_seg):
+                seg = y[i*s:(i+1)*s]
+                x = np.arange(s)
+                coeffs = np.polyfit(x, seg, 1)
+                trend = np.polyval(coeffs, x)
+                rms_list.append(np.sqrt(np.mean((seg - trend)**2)))
+            flucts.append(np.mean(rms_list))
+        if len(flucts) < 2:
+            return 0.5
+        log_s = np.log(scales[:len(flucts)])
+        log_f = np.log(flucts)
+        alpha = np.polyfit(log_s, log_f, 1)[0]
+        return alpha
+
+
+# ============================================================
+# 交叉验证：比较R/S和DFA结果
+# ============================================================
+def cross_validate_hurst(series: np.ndarray) -> Dict[str, float]:
+    """
+    使用R/S和DFA两种方法计算Hurst指数并交叉验证
+
+    Returns
+    -------
+    dict
+        包含两种方法的Hurst值及其差异
+    """
+    h_rs, _, _ = rs_hurst(series)
+    h_dfa = dfa_hurst(series)
+
+    result = {
+        'R/S Hurst': h_rs,
+        'DFA Hurst': h_dfa,
+        '两种方法差异': abs(h_rs - h_dfa),
+        '平均值': (h_rs + h_dfa) / 2,
+    }
+    return result
+
+
+# ============================================================
+# 滚动窗口Hurst指数
+# ============================================================
+def rolling_hurst(series: np.ndarray, dates: pd.DatetimeIndex,
+                  window: int = 500, step: int = 30,
+                  method: str = 'rs') -> Tuple[pd.DatetimeIndex, np.ndarray]:
+    """
+    滚动窗口计算Hurst指数，追踪市场状态随时间的演变
+
+    Parameters
+    ----------
+    series : np.ndarray
+        时间序列（对数收益率）
+    dates : pd.DatetimeIndex
+        对应的日期索引
+    window : int
+        滚动窗口大小（默认500天）
+    step : int
+        滚动步长（默认30天）
+    method : str
+        'rs' 使用R/S分析，'dfa' 使用DFA分析
+
+    Returns
+    -------
+    roll_dates : pd.DatetimeIndex
+        每个窗口对应的日期（窗口末尾日期）
+    roll_hurst : np.ndarray
+        对应的Hurst指数值
+    """
+    n = len(series)
+    roll_dates = []
+    roll_hurst = []
+
+    for start_idx in range(0, n - window + 1, step):
+        end_idx = start_idx + window
+        segment = series[start_idx:end_idx]
+
+        if method == 'rs':
+            h, _, _ = rs_hurst(segment)
+        elif method == 'dfa':
+            h = dfa_hurst(segment)
+        else:
+            raise ValueError(f"未知方法: {method}")
+
+        roll_dates.append(dates[end_idx - 1])
+        roll_hurst.append(h)
+
+    return pd.DatetimeIndex(roll_dates), np.array(roll_hurst)
+
+
+# ============================================================
+# 多时间框架Hurst分析
+# ============================================================
+def multi_timeframe_hurst(intervals: List[str] = None) -> Dict[str, Dict[str, float]]:
+    """
+    在多个时间框架下计算Hurst指数
+
+    Parameters
+    ----------
+    intervals : list of str
+        时间框架列表，默认 ['1h', '4h', '1d', '1w']
+
+    Returns
+    -------
+    dict
+        每个时间框架的Hurst分析结果
+    """
+    if intervals is None:
+        intervals = ['1h', '4h', '1d', '1w']
+
+    results = {}
+    for interval in intervals:
+        try:
+            print(f"\n正在加载 {interval} 数据...")
+            df = load_klines(interval)
+            prices = df['close'].dropna()
+
+            if len(prices) < 100:
+                print(f"  {interval} 数据量不足（{len(prices)}条），跳过")
+                continue
+
+            returns = log_returns(prices).values
+
+            # R/S分析
+            h_rs, _, _ = rs_hurst(returns)
+            # DFA分析
+            h_dfa = dfa_hurst(returns)
+
+            results[interval] = {
+                'R/S Hurst': h_rs,
+                'DFA Hurst': h_dfa,
+                '平均Hurst': (h_rs + h_dfa) / 2,
+                '数据量': len(returns),
+                '解读': interpret_hurst((h_rs + h_dfa) / 2),
+            }
+
+            print(f"  {interval}: R/S={h_rs:.4f}, DFA={h_dfa:.4f}, "
+                  f"平均={results[interval]['平均Hurst']:.4f}")
+
+        except FileNotFoundError:
+            print(f"  {interval} 数据文件不存在，跳过")
+        except Exception as e:
+            print(f"  {interval} 分析失败: {e}")
+
+    return results
+
+
+# ============================================================
+# 可视化函数
+# ============================================================
+def plot_rs_loglog(log_ns: np.ndarray, log_rs: np.ndarray, H: float,
+                   output_dir: Path, filename: str = "hurst_rs_loglog.png"):
+    """绘制R/S分析的log-log图"""
+    fig, ax = plt.subplots(figsize=(10, 7))
+
+    # 散点
+    ax.scatter(log_ns, log_rs, color='steelblue', s=40, zorder=3, label='R/S 数据点')
+
+    # 拟合线
+    coeffs = np.polyfit(log_ns, log_rs, 1)
+    fit_line = np.polyval(coeffs, log_ns)
+    ax.plot(log_ns, fit_line, 'r-', linewidth=2, label=f'拟合线 (H = {H:.4f})')
+
+    # 参考线：H=0.5（随机游走）
+    ref_line = 0.5 * log_ns + (log_rs[0] - 0.5 * log_ns[0])
+    ax.plot(log_ns, ref_line, 'k--', alpha=0.5, linewidth=1, label='H=0.5 (随机游走)')
+
+    ax.set_xlabel('log(n) - 窗口大小的对数', fontsize=12)
+    ax.set_ylabel('log(R/S) - 重标极差的对数', fontsize=12)
+    ax.set_title(f'BTC R/S 分析 (Hurst指数 = {H:.4f})\n{interpret_hurst(H)}', fontsize=13)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+def plot_rolling_hurst(roll_dates: pd.DatetimeIndex, roll_hurst: np.ndarray,
+                       output_dir: Path, filename: str = "hurst_rolling.png"):
+    """绘制滚动Hurst指数时间序列，带有市场状态色带"""
+    fig, ax = plt.subplots(figsize=(14, 7))
+
+    # 绘制Hurst指数曲线
+    ax.plot(roll_dates, roll_hurst, color='steelblue', linewidth=1.5, label='滚动Hurst指数')
+
+    # 状态色带
+    ax.axhspan(TREND_THRESHOLD, max(roll_hurst.max() + 0.05, 0.8),
+               alpha=0.1, color='green', label=f'趋势区 (H>{TREND_THRESHOLD})')
+    ax.axhspan(MEAN_REV_THRESHOLD, TREND_THRESHOLD,
+               alpha=0.1, color='yellow', label=f'随机游走区 ({MEAN_REV_THRESHOLD}<H<{TREND_THRESHOLD})')
+    ax.axhspan(min(roll_hurst.min() - 0.05, 0.2), MEAN_REV_THRESHOLD,
+               alpha=0.1, color='red', label=f'均值回归区 (H<{MEAN_REV_THRESHOLD})')
+
+    # 参考线
+    ax.axhline(y=0.5, color='black', linestyle='--', alpha=0.5, linewidth=1)
+    ax.axhline(y=TREND_THRESHOLD, color='green', linestyle=':', alpha=0.5)
+    ax.axhline(y=MEAN_REV_THRESHOLD, color='red', linestyle=':', alpha=0.5)
+
+    ax.set_xlabel('日期', fontsize=12)
+    ax.set_ylabel('Hurst指数', fontsize=12)
+    ax.set_title('BTC 滚动Hurst指数 (窗口=500天, 步长=30天)\n市场状态随时间演变', fontsize=13)
+    ax.legend(loc='upper left', fontsize=10)
+    ax.grid(True, alpha=0.3)
+
+    # 格式化日期轴
+    ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m'))
+    ax.xaxis.set_major_locator(mdates.YearLocator())
+    fig.autofmt_xdate()
+
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+def plot_multi_timeframe(results: Dict[str, Dict[str, float]],
+                         output_dir: Path, filename: str = "hurst_multi_timeframe.png"):
+    """绘制多时间框架Hurst指数对比图"""
+    if not results:
+        print("  没有可绘制的多时间框架结果")
+        return
+
+    intervals = list(results.keys())
+    h_rs = [results[k]['R/S Hurst'] for k in intervals]
+    h_dfa = [results[k]['DFA Hurst'] for k in intervals]
+    h_avg = [results[k]['平均Hurst'] for k in intervals]
+
+    x = np.arange(len(intervals))
+    width = 0.25
+
+    fig, ax = plt.subplots(figsize=(12, 7))
+
+    bars1 = ax.bar(x - width, h_rs, width, label='R/S Hurst', color='steelblue', alpha=0.8)
+    bars2 = ax.bar(x, h_dfa, width, label='DFA Hurst', color='coral', alpha=0.8)
+    bars3 = ax.bar(x + width, h_avg, width, label='平均', color='seagreen', alpha=0.8)
+
+    # 参考线
+    ax.axhline(y=0.5, color='black', linestyle='--', alpha=0.5, linewidth=1, label='H=0.5')
+    ax.axhline(y=TREND_THRESHOLD, color='green', linestyle=':', alpha=0.4)
+    ax.axhline(y=MEAN_REV_THRESHOLD, color='red', linestyle=':', alpha=0.4)
+
+    # 在柱状图上标注数值
+    for bars in [bars1, bars2, bars3]:
+        for bar in bars:
+            height = bar.get_height()
+            ax.annotate(f'{height:.3f}',
+                        xy=(bar.get_x() + bar.get_width() / 2, height),
+                        xytext=(0, 3), textcoords="offset points",
+                        ha='center', va='bottom', fontsize=9)
+
+    ax.set_xlabel('时间框架', fontsize=12)
+    ax.set_ylabel('Hurst指数', fontsize=12)
+    ax.set_title('BTC 多时间框架 Hurst指数对比', fontsize=13)
+    ax.set_xticks(x)
+    ax.set_xticklabels(intervals)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3, axis='y')
+
+    fig.tight_layout()
+    filepath = output_dir / filename
+    fig.savefig(filepath, dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  已保存: {filepath}")
+
+
+# ============================================================
+# 主入口函数
+# ============================================================
+def run_hurst_analysis(df: pd.DataFrame, output_dir: str = "output/hurst") -> Dict:
+    """
+    Hurst指数综合分析主入口
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        K线数据（需包含 'close' 列和DatetimeIndex索引）
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        包含所有分析结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    results = {}
+
+    print("=" * 70)
+    print("Hurst指数综合分析")
+    print("=" * 70)
+
+    # ----------------------------------------------------------
+    # 1. 准备数据
+    # ----------------------------------------------------------
+    prices = df['close'].dropna()
+    returns = log_returns(prices)
+    returns_arr = returns.values
+
+    print(f"\n数据概况:")
+    print(f"  时间范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"  收益率序列长度: {len(returns_arr)}")
+
+    # ----------------------------------------------------------
+    # 2. R/S分析
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【1】R/S (Rescaled Range) 分析")
+    print("-" * 50)
+
+    h_rs, log_ns, log_rs = rs_hurst(returns_arr)
+    results['R/S Hurst'] = h_rs
+
+    print(f"  R/S Hurst指数: {h_rs:.4f}")
+    print(f"  解读: {interpret_hurst(h_rs)}")
+
+    # 绘制R/S log-log图
+    plot_rs_loglog(log_ns, log_rs, h_rs, output_dir)
+
+    # ----------------------------------------------------------
+    # 3. DFA分析（使用nolds库）
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【2】DFA (Detrended Fluctuation Analysis) 分析")
+    print("-" * 50)
+
+    h_dfa = dfa_hurst(returns_arr)
+    results['DFA Hurst'] = h_dfa
+
+    print(f"  DFA Hurst指数: {h_dfa:.4f}")
+    print(f"  解读: {interpret_hurst(h_dfa)}")
+
+    # ----------------------------------------------------------
+    # 4. 交叉验证
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【3】交叉验证：R/S vs DFA")
+    print("-" * 50)
+
+    cv_results = cross_validate_hurst(returns_arr)
+    results['交叉验证'] = cv_results
+
+    print(f"  R/S Hurst:  {cv_results['R/S Hurst']:.4f}")
+    print(f"  DFA Hurst:  {cv_results['DFA Hurst']:.4f}")
+    print(f"  两种方法差异: {cv_results['两种方法差异']:.4f}")
+    print(f"  平均值:     {cv_results['平均值']:.4f}")
+
+    avg_h = cv_results['平均值']
+    if cv_results['两种方法差异'] < 0.05:
+        print("  ✓ 两种方法结果一致性较好（差异<0.05）")
+    else:
+        print("  ⚠ 两种方法结果存在一定差异（差异≥0.05），建议结合其他方法验证")
+
+    print(f"\n  综合解读: {interpret_hurst(avg_h)}")
+    results['综合Hurst'] = avg_h
+    results['综合解读'] = interpret_hurst(avg_h)
+
+    # ----------------------------------------------------------
+    # 5. 滚动窗口Hurst（窗口500天，步长30天）
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【4】滚动窗口Hurst指数 (窗口=500天, 步长=30天)")
+    print("-" * 50)
+
+    if len(returns_arr) >= 500:
+        roll_dates, roll_h = rolling_hurst(
+            returns_arr, returns.index, window=500, step=30, method='rs'
+        )
+
+        # 统计各状态占比
+        n_trend = np.sum(roll_h > TREND_THRESHOLD)
+        n_mean_rev = np.sum(roll_h < MEAN_REV_THRESHOLD)
+        n_random = np.sum((roll_h >= MEAN_REV_THRESHOLD) & (roll_h <= TREND_THRESHOLD))
+        total = len(roll_h)
+
+        print(f"  滚动窗口数: {total}")
+        print(f"  趋势状态占比:   {n_trend / total * 100:.1f}% ({n_trend}/{total})")
+        print(f"  随机游走占比:   {n_random / total * 100:.1f}% ({n_random}/{total})")
+        print(f"  均值回归占比:   {n_mean_rev / total * 100:.1f}% ({n_mean_rev}/{total})")
+        print(f"  Hurst范围: [{roll_h.min():.4f}, {roll_h.max():.4f}]")
+        print(f"  Hurst均值: {roll_h.mean():.4f}")
+
+        results['滚动Hurst'] = {
+            '窗口数': total,
+            '趋势占比': n_trend / total,
+            '随机游走占比': n_random / total,
+            '均值回归占比': n_mean_rev / total,
+            'Hurst范围': (roll_h.min(), roll_h.max()),
+            'Hurst均值': roll_h.mean(),
+        }
+
+        # 绘制滚动Hurst图
+        plot_rolling_hurst(roll_dates, roll_h, output_dir)
+    else:
+        print(f"  数据量不足（{len(returns_arr)}<500），跳过滚动窗口分析")
+
+    # ----------------------------------------------------------
+    # 6. 多时间框架Hurst分析
+    # ----------------------------------------------------------
+    print("\n" + "-" * 50)
+    print("【5】多时间框架Hurst指数")
+    print("-" * 50)
+
+    mt_results = multi_timeframe_hurst(['1h', '4h', '1d', '1w'])
+    results['多时间框架'] = mt_results
+
+    # 绘制多时间框架对比图
+    plot_multi_timeframe(mt_results, output_dir)
+
+    # ----------------------------------------------------------
+    # 7. 总结
+    # ----------------------------------------------------------
+    print("\n" + "=" * 70)
+    print("分析总结")
+    print("=" * 70)
+    print(f"  日线综合Hurst指数: {avg_h:.4f}")
+    print(f"  市场状态判断: {interpret_hurst(avg_h)}")
+
+    if mt_results:
+        print("\n  各时间框架Hurst指数:")
+        for interval, data in mt_results.items():
+            print(f"    {interval}: 平均H={data['平均Hurst']:.4f} - {data['解读']}")
+
+    print(f"\n  判定标准:")
+    print(f"    H > {TREND_THRESHOLD}: 趋势性（持续性，适合趋势跟随策略）")
+    print(f"    H < {MEAN_REV_THRESHOLD}: 均值回归（反持续性，适合均值回归策略）")
+    print(f"    {MEAN_REV_THRESHOLD} ≤ H ≤ {TREND_THRESHOLD}: 随机游走（无显著可预测性）")
+
+    print(f"\n  图表已保存至: {output_dir.resolve()}")
+    print("=" * 70)
+
+    return results
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+if __name__ == "__main__":
+    from data_loader import load_daily
+
+    print("加载BTC日线数据...")
+    df = load_daily()
+    print(f"数据加载完成: {len(df)} 条记录")
+
+    results = run_hurst_analysis(df, output_dir="output/hurst")
diff --git a/src/indicators.py b/src/indicators.py
new file mode 100644
index 0000000..cd2ef4b
--- /dev/null
+++ b/src/indicators.py
@@ -0,0 +1,626 @@
+"""
+技术指标有效性验证模块
+
+手动实现常见技术指标（MA/EMA交叉、RSI、MACD、布林带），
+在训练集上进行统计显著性检验，并在验证集上验证。
+包含反数据窥探措施：Benjamini-Hochberg FDR 校正 + 置换检验。
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy import stats
+from pathlib import Path
+from typing import Dict, List, Tuple, Optional
+
+from src.data_loader import split_data
+from src.preprocessing import log_returns
+
+
+# ============================================================
+# 1. 手动实现技术指标
+# ============================================================
+
+def calc_sma(series: pd.Series, window: int) -> pd.Series:
+    """简单移动平均线"""
+    return series.rolling(window=window, min_periods=window).mean()
+
+
+def calc_ema(series: pd.Series, span: int) -> pd.Series:
+    """指数移动平均线"""
+    return series.ewm(span=span, adjust=False).mean()
+
+
+def calc_rsi(close: pd.Series, period: int = 14) -> pd.Series:
+    """
+    相对强弱指标 (RSI)
+    RSI = 100 - 100 / (1 + RS)
+    RS = 平均上涨幅度 / 平均下跌幅度
+    """
+    delta = close.diff()
+    gain = delta.clip(lower=0)
+    loss = (-delta).clip(lower=0)
+    # 使用 EMA 计算平均涨跌
+    avg_gain = gain.ewm(alpha=1.0 / period, min_periods=period, adjust=False).mean()
+    avg_loss = loss.ewm(alpha=1.0 / period, min_periods=period, adjust=False).mean()
+    rs = avg_gain / avg_loss.replace(0, np.nan)
+    rsi = 100 - 100 / (1 + rs)
+    return rsi
+
+
+def calc_macd(close: pd.Series, fast: int = 12, slow: int = 26, signal: int = 9) -> Tuple[pd.Series, pd.Series, pd.Series]:
+    """
+    MACD 指标
+    返回: (macd_line, signal_line, histogram)
+    """
+    ema_fast = calc_ema(close, fast)
+    ema_slow = calc_ema(close, slow)
+    macd_line = ema_fast - ema_slow
+    signal_line = calc_ema(macd_line, signal)
+    histogram = macd_line - signal_line
+    return macd_line, signal_line, histogram
+
+
+def calc_bollinger_bands(close: pd.Series, window: int = 20, num_std: float = 2.0) -> Tuple[pd.Series, pd.Series, pd.Series]:
+    """
+    布林带
+    返回: (upper, middle, lower)
+    """
+    middle = calc_sma(close, window)
+    rolling_std = close.rolling(window=window, min_periods=window).std()
+    upper = middle + num_std * rolling_std
+    lower = middle - num_std * rolling_std
+    return upper, middle, lower
+
+
+# ============================================================
+# 2. 信号生成
+# ============================================================
+
+def generate_ma_crossover_signals(close: pd.Series, short_w: int, long_w: int, use_ema: bool = False) -> pd.Series:
+    """
+    均线交叉信号
+    金叉 = +1（短期上穿长期），死叉 = -1（短期下穿长期），无信号 = 0
+    """
+    func = calc_ema if use_ema else calc_sma
+    short_ma = func(close, short_w)
+    long_ma = func(close, long_w)
+    # 当前短>长 且 前一根短<=长 => 金叉(+1)
+    # 当前短<长 且 前一根短>=长 => 死叉(-1)
+    cross_up = (short_ma > long_ma) & (short_ma.shift(1) <= long_ma.shift(1))
+    cross_down = (short_ma < long_ma) & (short_ma.shift(1) >= long_ma.shift(1))
+    signal = pd.Series(0, index=close.index)
+    signal[cross_up] = 1
+    signal[cross_down] = -1
+    return signal
+
+
+def generate_rsi_signals(close: pd.Series, period: int, oversold: float = 30, overbought: float = 70) -> pd.Series:
+    """
+    RSI 超买超卖信号
+    RSI 从超卖区回升 => +1 (买入信号)
+    RSI 从超买区回落 => -1 (卖出信号)
+    """
+    rsi = calc_rsi(close, period)
+    rsi_prev = rsi.shift(1)
+    signal = pd.Series(0, index=close.index)
+    # 从超卖回升
+    signal[(rsi_prev <= oversold) & (rsi > oversold)] = 1
+    # 从超买回落
+    signal[(rsi_prev >= overbought) & (rsi < overbought)] = -1
+    return signal
+
+
+def generate_macd_signals(close: pd.Series, fast: int = 12, slow: int = 26, sig: int = 9) -> pd.Series:
+    """
+    MACD 交叉信号
+    MACD线上穿信号线 => +1
+    MACD线下穿信号线 => -1
+    """
+    macd_line, signal_line, _ = calc_macd(close, fast, slow, sig)
+    cross_up = (macd_line > signal_line) & (macd_line.shift(1) <= signal_line.shift(1))
+    cross_down = (macd_line < signal_line) & (macd_line.shift(1) >= signal_line.shift(1))
+    signal = pd.Series(0, index=close.index)
+    signal[cross_up] = 1
+    signal[cross_down] = -1
+    return signal
+
+
+def generate_bollinger_signals(close: pd.Series, window: int = 20, num_std: float = 2.0) -> pd.Series:
+    """
+    布林带信号
+    价格触及下轨后回升 => +1 (买入)
+    价格触及上轨后回落 => -1 (卖出)
+    """
+    upper, middle, lower = calc_bollinger_bands(close, window, num_std)
+    # 前一根在下轨以下，当前回到下轨以上
+    cross_up = (close.shift(1) <= lower.shift(1)) & (close > lower)
+    # 前一根在上轨以上，当前回到上轨以下
+    cross_down = (close.shift(1) >= upper.shift(1)) & (close < upper)
+    signal = pd.Series(0, index=close.index)
+    signal[cross_up] = 1
+    signal[cross_down] = -1
+    return signal
+
+
+def build_all_signals(close: pd.Series) -> Dict[str, pd.Series]:
+    """
+    构建所有技术指标信号
+    返回字典: {指标名称: 信号序列}
+    """
+    signals = {}
+
+    # --- MA / EMA 交叉 ---
+    ma_pairs = [(5, 20), (10, 50), (20, 100), (50, 200)]
+    for short_w, long_w in ma_pairs:
+        signals[f"SMA_{short_w}_{long_w}"] = generate_ma_crossover_signals(close, short_w, long_w, use_ema=False)
+        signals[f"EMA_{short_w}_{long_w}"] = generate_ma_crossover_signals(close, short_w, long_w, use_ema=True)
+
+    # --- RSI ---
+    rsi_configs = [
+        (7, 30, 70), (7, 25, 75), (7, 20, 80),
+        (14, 30, 70), (14, 25, 75), (14, 20, 80),
+        (21, 30, 70), (21, 25, 75), (21, 20, 80),
+    ]
+    for period, oversold, overbought in rsi_configs:
+        signals[f"RSI_{period}_{oversold}_{overbought}"] = generate_rsi_signals(close, period, oversold, overbought)
+
+    # --- MACD ---
+    macd_configs = [(12, 26, 9), (8, 17, 9), (5, 35, 5)]
+    for fast, slow, sig in macd_configs:
+        signals[f"MACD_{fast}_{slow}_{sig}"] = generate_macd_signals(close, fast, slow, sig)
+
+    # --- 布林带 ---
+    signals["BB_20_2"] = generate_bollinger_signals(close, 20, 2.0)
+
+    return signals
+
+
+# ============================================================
+# 3. 统计检验
+# ============================================================
+
+def calc_forward_returns(close: pd.Series, periods: int = 1) -> pd.Series:
+    """计算未来N日收益率（对数收益率）"""
+    return np.log(close.shift(-periods) / close)
+
+
+def test_signal_returns(signal: pd.Series, returns: pd.Series) -> Dict:
+    """
+    对单个指标信号进行统计检验
+
+    - Welch t-test：比较信号日 vs 非信号日收益均值差异
+    - Mann-Whitney U：非参数检验
+    - 二项检验：方向准确率是否显著高于50%
+    - 信息系数 (IC)：Spearman秩相关
+    """
+    # 买入信号日（signal == 1）的收益
+    buy_returns = returns[signal == 1].dropna()
+    # 卖出信号日（signal == -1）的收益
+    sell_returns = returns[signal == -1].dropna()
+    # 非信号日收益
+    no_signal_returns = returns[signal == 0].dropna()
+
+    result = {
+        'n_buy': len(buy_returns),
+        'n_sell': len(sell_returns),
+        'n_no_signal': len(no_signal_returns),
+        'buy_mean': buy_returns.mean() if len(buy_returns) > 0 else np.nan,
+        'sell_mean': sell_returns.mean() if len(sell_returns) > 0 else np.nan,
+        'no_signal_mean': no_signal_returns.mean() if len(no_signal_returns) > 0 else np.nan,
+    }
+
+    # --- Welch t-test (买入信号 vs 非信号) ---
+    if len(buy_returns) >= 5 and len(no_signal_returns) >= 5:
+        t_stat, t_pval = stats.ttest_ind(buy_returns, no_signal_returns, equal_var=False)
+        result['welch_t_stat'] = t_stat
+        result['welch_t_pval'] = t_pval
+    else:
+        result['welch_t_stat'] = np.nan
+        result['welch_t_pval'] = np.nan
+
+    # --- Mann-Whitney U (买入信号 vs 非信号) ---
+    if len(buy_returns) >= 5 and len(no_signal_returns) >= 5:
+        u_stat, u_pval = stats.mannwhitneyu(buy_returns, no_signal_returns, alternative='two-sided')
+        result['mwu_stat'] = u_stat
+        result['mwu_pval'] = u_pval
+    else:
+        result['mwu_stat'] = np.nan
+        result['mwu_pval'] = np.nan
+
+    # --- 二项检验：买入信号日收益>0的比例 vs 50% ---
+    if len(buy_returns) >= 5:
+        n_positive = (buy_returns > 0).sum()
+        binom_pval = stats.binomtest(n_positive, len(buy_returns), 0.5).pvalue
+        result['buy_hit_rate'] = n_positive / len(buy_returns)
+        result['binom_pval'] = binom_pval
+    else:
+        result['buy_hit_rate'] = np.nan
+        result['binom_pval'] = np.nan
+
+    # --- 信息系数 (IC)：Spearman秩相关 ---
+    # 用信号值（-1, 0, 1）与未来收益的秩相关
+    valid_mask = signal.notna() & returns.notna()
+    if valid_mask.sum() >= 30:
+        ic, ic_pval = stats.spearmanr(signal[valid_mask], returns[valid_mask])
+        result['ic'] = ic
+        result['ic_pval'] = ic_pval
+    else:
+        result['ic'] = np.nan
+        result['ic_pval'] = np.nan
+
+    return result
+
+
+def benjamini_hochberg(p_values: np.ndarray, alpha: float = 0.05) -> Tuple[np.ndarray, np.ndarray]:
+    """
+    Benjamini-Hochberg FDR 校正
+
+    参数:
+        p_values: 原始 p 值数组
+        alpha: 显著性水平
+
+    返回:
+        (rejected, adjusted_p): 是否拒绝原假设, 校正后p值
+    """
+    n = len(p_values)
+    if n == 0:
+        return np.array([], dtype=bool), np.array([])
+
+    # 处理 NaN
+    valid_mask = ~np.isnan(p_values)
+    adjusted = np.full(n, np.nan)
+    rejected = np.full(n, False)
+
+    valid_pvals = p_values[valid_mask]
+    n_valid = len(valid_pvals)
+    if n_valid == 0:
+        return rejected, adjusted
+
+    # 排序
+    sorted_idx = np.argsort(valid_pvals)
+    sorted_pvals = valid_pvals[sorted_idx]
+
+    # BH校正
+    rank = np.arange(1, n_valid + 1)
+    adjusted_sorted = sorted_pvals * n_valid / rank
+    # 从后往前取累积最小值，确保单调性
+    adjusted_sorted = np.minimum.accumulate(adjusted_sorted[::-1])[::-1]
+    adjusted_sorted = np.clip(adjusted_sorted, 0, 1)
+
+    # 填回
+    valid_indices = np.where(valid_mask)[0]
+    for i, idx in enumerate(sorted_idx):
+        adjusted[valid_indices[idx]] = adjusted_sorted[i]
+        rejected[valid_indices[idx]] = adjusted_sorted[i] <= alpha
+
+    return rejected, adjusted
+
+
+def permutation_test(signal: pd.Series, returns: pd.Series, n_permutations: int = 1000, stat_func=None) -> Tuple[float, float]:
+    """
+    置换检验
+
+    随机打乱信号与收益的对应关系，评估原始统计量的显著性
+    返回: (observed_stat, p_value)
+    """
+    if stat_func is None:
+        # 默认统计量：买入信号日均值 - 非信号日均值
+        def stat_func(sig, ret):
+            buy_ret = ret[sig == 1]
+            no_sig_ret = ret[sig == 0]
+            if len(buy_ret) < 2 or len(no_sig_ret) < 2:
+                return 0.0
+            return buy_ret.mean() - no_sig_ret.mean()
+
+    valid_mask = signal.notna() & returns.notna()
+    sig_valid = signal[valid_mask].values
+    ret_valid = returns[valid_mask].values
+
+    observed = stat_func(pd.Series(sig_valid), pd.Series(ret_valid))
+
+    # 置换
+    count_extreme = 0
+    rng = np.random.RandomState(42)
+    for _ in range(n_permutations):
+        perm_sig = rng.permutation(sig_valid)
+        perm_stat = stat_func(pd.Series(perm_sig), pd.Series(ret_valid))
+        if abs(perm_stat) >= abs(observed):
+            count_extreme += 1
+
+    perm_pval = (count_extreme + 1) / (n_permutations + 1)
+    return observed, perm_pval
+
+
+# ============================================================
+# 4. 可视化
+# ============================================================
+
+def plot_ic_distribution(results_df: pd.DataFrame, output_dir: Path, prefix: str = "train"):
+    """绘制信息系数 (IC) 分布图"""
+    fig, ax = plt.subplots(figsize=(12, 6))
+    ic_vals = results_df['ic'].dropna()
+    ax.barh(range(len(ic_vals)), ic_vals.values, color=['green' if v > 0 else 'red' for v in ic_vals.values])
+    ax.set_yticks(range(len(ic_vals)))
+    ax.set_yticklabels(ic_vals.index, fontsize=7)
+    ax.set_xlabel('Information Coefficient (Spearman)')
+    ax.set_title(f'IC Distribution - {prefix.upper()} Set')
+    ax.axvline(x=0, color='black', linestyle='-', linewidth=0.5)
+    plt.tight_layout()
+    fig.savefig(output_dir / f"ic_distribution_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] ic_distribution_{prefix}.png")
+
+
+def plot_pvalue_heatmap(results_df: pd.DataFrame, output_dir: Path, prefix: str = "train"):
+    """绘制 p 值热力图：原始 vs FDR 校正后"""
+    pval_cols = ['welch_t_pval', 'mwu_pval', 'binom_pval', 'ic_pval']
+    adj_cols = ['welch_t_adj_pval', 'mwu_adj_pval', 'binom_adj_pval', 'ic_adj_pval']
+
+    # 只取存在的列
+    existing_pval = [c for c in pval_cols if c in results_df.columns]
+    existing_adj = [c for c in adj_cols if c in results_df.columns]
+
+    if not existing_pval:
+        return
+
+    fig, axes = plt.subplots(1, 2, figsize=(16, max(8, len(results_df) * 0.35)))
+
+    # 原始 p 值
+    pval_data = results_df[existing_pval].values.astype(float)
+    im1 = axes[0].imshow(pval_data, aspect='auto', cmap='RdYlGn_r', vmin=0, vmax=0.1)
+    axes[0].set_yticks(range(len(results_df)))
+    axes[0].set_yticklabels(results_df.index, fontsize=6)
+    axes[0].set_xticks(range(len(existing_pval)))
+    axes[0].set_xticklabels([c.replace('_pval', '') for c in existing_pval], fontsize=8, rotation=45)
+    axes[0].set_title('Raw p-values')
+    plt.colorbar(im1, ax=axes[0], shrink=0.6)
+
+    # FDR 校正后 p 值
+    if existing_adj:
+        adj_data = results_df[existing_adj].values.astype(float)
+        im2 = axes[1].imshow(adj_data, aspect='auto', cmap='RdYlGn_r', vmin=0, vmax=0.1)
+        axes[1].set_yticks(range(len(results_df)))
+        axes[1].set_yticklabels(results_df.index, fontsize=6)
+        axes[1].set_xticks(range(len(existing_adj)))
+        axes[1].set_xticklabels([c.replace('_adj_pval', '') for c in existing_adj], fontsize=8, rotation=45)
+        axes[1].set_title('FDR-adjusted p-values')
+        plt.colorbar(im2, ax=axes[1], shrink=0.6)
+    else:
+        axes[1].text(0.5, 0.5, 'No adjusted p-values', ha='center', va='center')
+        axes[1].set_title('FDR-adjusted p-values (N/A)')
+
+    plt.suptitle(f'P-value Heatmap - {prefix.upper()} Set', fontsize=14)
+    plt.tight_layout()
+    fig.savefig(output_dir / f"pvalue_heatmap_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] pvalue_heatmap_{prefix}.png")
+
+
+def plot_best_indicator_signal(close: pd.Series, signal: pd.Series, returns: pd.Series,
+                                indicator_name: str, output_dir: Path, prefix: str = "train"):
+    """绘制最佳指标的信号 vs 收益散点图"""
+    fig, axes = plt.subplots(2, 1, figsize=(14, 10), gridspec_kw={'height_ratios': [2, 1]})
+
+    # 上图：价格 + 信号标记
+    axes[0].plot(close.index, close.values, color='gray', alpha=0.7, linewidth=0.8, label='BTC Close')
+    buy_mask = signal == 1
+    sell_mask = signal == -1
+    axes[0].scatter(close.index[buy_mask], close.values[buy_mask],
+                    marker='^', color='green', s=40, label='Buy Signal', zorder=5)
+    axes[0].scatter(close.index[sell_mask], close.values[sell_mask],
+                    marker='v', color='red', s=40, label='Sell Signal', zorder=5)
+    axes[0].set_title(f'Best Indicator: {indicator_name} - {prefix.upper()} Set')
+    axes[0].set_ylabel('Price (USDT)')
+    axes[0].legend(fontsize=8)
+
+    # 下图：信号日收益分布
+    buy_returns = returns[buy_mask].dropna()
+    sell_returns = returns[sell_mask].dropna()
+    if len(buy_returns) > 0:
+        axes[1].hist(buy_returns, bins=30, alpha=0.6, color='green', label=f'Buy ({len(buy_returns)})')
+    if len(sell_returns) > 0:
+        axes[1].hist(sell_returns, bins=30, alpha=0.6, color='red', label=f'Sell ({len(sell_returns)})')
+    axes[1].axvline(x=0, color='black', linestyle='--', linewidth=0.8)
+    axes[1].set_xlabel('Forward 1-day Log Return')
+    axes[1].set_ylabel('Count')
+    axes[1].legend(fontsize=8)
+
+    plt.tight_layout()
+    fig.savefig(output_dir / f"best_indicator_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] best_indicator_{prefix}.png")
+
+
+# ============================================================
+# 5. 主流程
+# ============================================================
+
+def evaluate_signals_on_set(close: pd.Series, signals: Dict[str, pd.Series], set_name: str) -> pd.DataFrame:
+    """
+    在给定数据集上评估所有信号
+
+    返回包含所有统计指标的 DataFrame
+    """
+    # 未来1日收益
+    fwd_ret = calc_forward_returns(close, periods=1)
+
+    results = {}
+    for name, signal in signals.items():
+        # 只取当前数据集范围内的信号
+        sig = signal.reindex(close.index).fillna(0)
+        ret = fwd_ret.reindex(close.index)
+        results[name] = test_signal_returns(sig, ret)
+
+    results_df = pd.DataFrame(results).T
+    results_df.index.name = 'indicator'
+
+    print(f"\n{'='*60}")
+    print(f"  {set_name} 数据集评估结果")
+    print(f"{'='*60}")
+    print(f"  总指标数: {len(results_df)}")
+    print(f"  数据点数: {len(close)}")
+
+    return results_df
+
+
+def apply_fdr_correction(results_df: pd.DataFrame, alpha: float = 0.05) -> pd.DataFrame:
+    """
+    对所有 p 值列进行 Benjamini-Hochberg FDR 校正
+    """
+    pval_cols = ['welch_t_pval', 'mwu_pval', 'binom_pval', 'ic_pval']
+
+    for col in pval_cols:
+        if col not in results_df.columns:
+            continue
+        pvals = results_df[col].values.astype(float)
+        rejected, adjusted = benjamini_hochberg(pvals, alpha)
+        adj_col = col.replace('_pval', '_adj_pval')
+        rej_col = col.replace('_pval', '_rejected')
+        results_df[adj_col] = adjusted
+        results_df[rej_col] = rejected
+
+    return results_df
+
+
+def run_indicators_analysis(df: pd.DataFrame, output_dir: str) -> Dict:
+    """
+    技术指标有效性验证主入口
+
+    参数:
+        df: 完整的日线 DataFrame（含 open/high/low/close/volume 等列，DatetimeIndex）
+        output_dir: 图表输出目录
+
+    返回:
+        包含训练集和验证集结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("  技术指标有效性验证")
+    print("=" * 60)
+
+    # --- 数据切分 ---
+    train, val, test = split_data(df)
+    print(f"\n训练集: {train.index.min()} ~ {train.index.max()}  ({len(train)} bars)")
+    print(f"验证集: {val.index.min()} ~ {val.index.max()}  ({len(val)} bars)")
+
+    # --- 构建全部信号（在全量数据上计算，避免前导NaN问题） ---
+    all_signals = build_all_signals(df['close'])
+    print(f"\n共构建 {len(all_signals)} 个技术指标信号")
+
+    # ============ 训练集评估 ============
+    train_results = evaluate_signals_on_set(train['close'], all_signals, "训练集 (TRAIN)")
+
+    # FDR 校正
+    train_results = apply_fdr_correction(train_results, alpha=0.05)
+
+    # 找出通过 FDR 校正的指标
+    reject_cols = [c for c in train_results.columns if c.endswith('_rejected')]
+    if reject_cols:
+        train_results['any_fdr_pass'] = train_results[reject_cols].any(axis=1)
+        fdr_passed = train_results[train_results['any_fdr_pass']].index.tolist()
+    else:
+        fdr_passed = []
+
+    print(f"\n--- FDR 校正结果 (训练集) ---")
+    if fdr_passed:
+        print(f"  通过 FDR 校正的指标 ({len(fdr_passed)} 个):")
+        for name in fdr_passed:
+            row = train_results.loc[name]
+            ic_val = row.get('ic', np.nan)
+            print(f"    - {name}: IC={ic_val:.4f}" if not np.isnan(ic_val) else f"    - {name}")
+    else:
+        print("  没有指标通过 FDR 校正（alpha=0.05）")
+
+    # --- 置换检验（仅对 IC 排名前5的指标） ---
+    fwd_ret_train = calc_forward_returns(train['close'], periods=1)
+    ic_series = train_results['ic'].dropna().abs().sort_values(ascending=False)
+    top_indicators = ic_series.head(5).index.tolist()
+
+    print(f"\n--- 置换检验 (训练集, top-5 IC 指标, 1000次置换) ---")
+    perm_results = {}
+    for name in top_indicators:
+        sig = all_signals[name].reindex(train.index).fillna(0)
+        ret = fwd_ret_train.reindex(train.index)
+        obs, pval = permutation_test(sig, ret, n_permutations=1000)
+        perm_results[name] = {'observed_diff': obs, 'perm_pval': pval}
+        perm_pass = "PASS" if pval < 0.05 else "FAIL"
+        print(f"  {name}: obs_diff={obs:.6f}, perm_p={pval:.4f} [{perm_pass}]")
+
+    # --- 训练集可视化 ---
+    print("\n--- 训练集可视化 ---")
+    plot_ic_distribution(train_results, output_dir, prefix="train")
+    plot_pvalue_heatmap(train_results, output_dir, prefix="train")
+
+    # 最佳指标（IC绝对值最大）
+    if len(ic_series) > 0:
+        best_name = ic_series.index[0]
+        best_signal = all_signals[best_name].reindex(train.index).fillna(0)
+        best_ret = fwd_ret_train.reindex(train.index)
+        plot_best_indicator_signal(train['close'], best_signal, best_ret, best_name, output_dir, prefix="train")
+
+    # ============ 验证集评估 ============
+    val_results = evaluate_signals_on_set(val['close'], all_signals, "验证集 (VAL)")
+    val_results = apply_fdr_correction(val_results, alpha=0.05)
+
+    reject_cols_val = [c for c in val_results.columns if c.endswith('_rejected')]
+    if reject_cols_val:
+        val_results['any_fdr_pass'] = val_results[reject_cols_val].any(axis=1)
+        val_fdr_passed = val_results[val_results['any_fdr_pass']].index.tolist()
+    else:
+        val_fdr_passed = []
+
+    print(f"\n--- FDR 校正结果 (验证集) ---")
+    if val_fdr_passed:
+        print(f"  通过 FDR 校正的指标 ({len(val_fdr_passed)} 个):")
+        for name in val_fdr_passed:
+            row = val_results.loc[name]
+            ic_val = row.get('ic', np.nan)
+            print(f"    - {name}: IC={ic_val:.4f}" if not np.isnan(ic_val) else f"    - {name}")
+    else:
+        print("  没有指标通过 FDR 校正（alpha=0.05）")
+
+    # 训练集 vs 验证集 IC 对比
+    if 'ic' in train_results.columns and 'ic' in val_results.columns:
+        print(f"\n--- 训练集 vs 验证集 IC 对比 (Top-10) ---")
+        merged_ic = pd.DataFrame({
+            'train_ic': train_results['ic'],
+            'val_ic': val_results['ic']
+        }).dropna()
+        merged_ic['consistent'] = (merged_ic['train_ic'] * merged_ic['val_ic']) > 0  # 同号
+        merged_ic = merged_ic.reindex(merged_ic['train_ic'].abs().sort_values(ascending=False).index)
+        for name in merged_ic.head(10).index:
+            row = merged_ic.loc[name]
+            cons = "OK" if row['consistent'] else "FLIP"
+            print(f"  {name}: train_IC={row['train_ic']:.4f}, val_IC={row['val_ic']:.4f} [{cons}]")
+
+    # --- 验证集可视化 ---
+    print("\n--- 验证集可视化 ---")
+    plot_ic_distribution(val_results, output_dir, prefix="val")
+    plot_pvalue_heatmap(val_results, output_dir, prefix="val")
+
+    val_ic_series = val_results['ic'].dropna().abs().sort_values(ascending=False)
+    if len(val_ic_series) > 0:
+        fwd_ret_val = calc_forward_returns(val['close'], periods=1)
+        best_val_name = val_ic_series.index[0]
+        best_val_signal = all_signals[best_val_name].reindex(val.index).fillna(0)
+        best_val_ret = fwd_ret_val.reindex(val.index)
+        plot_best_indicator_signal(val['close'], best_val_signal, best_val_ret, best_val_name, output_dir, prefix="val")
+
+    print(f"\n{'='*60}")
+    print("  技术指标有效性验证完成")
+    print(f"{'='*60}")
+
+    return {
+        'train_results': train_results,
+        'val_results': val_results,
+        'fdr_passed_train': fdr_passed,
+        'fdr_passed_val': val_fdr_passed,
+        'permutation_results': perm_results,
+        'all_signals': all_signals,
+    }
diff --git a/src/patterns.py b/src/patterns.py
new file mode 100644
index 0000000..b706226
--- /dev/null
+++ b/src/patterns.py
@@ -0,0 +1,853 @@
+"""
+K线形态识别与统计验证模块
+
+手动实现常见蜡烛图形态（Doji、Hammer、Engulfing、Morning/Evening Star 等），
+使用前向收益分析 + Wilson 置信区间 + FDR 校正进行统计验证。
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy import stats
+from pathlib import Path
+from typing import Dict, List, Tuple, Optional
+
+from src.data_loader import split_data
+
+
+# ============================================================
+# 1. 辅助函数
+# ============================================================
+
+def _body(df: pd.DataFrame) -> pd.Series:
+    """实体大小（绝对值）"""
+    return (df['close'] - df['open']).abs()
+
+
+def _body_signed(df: pd.DataFrame) -> pd.Series:
+    """带符号的实体（正=阳线，负=阴线）"""
+    return df['close'] - df['open']
+
+
+def _upper_shadow(df: pd.DataFrame) -> pd.Series:
+    """上影线长度"""
+    return df['high'] - df[['open', 'close']].max(axis=1)
+
+
+def _lower_shadow(df: pd.DataFrame) -> pd.Series:
+    """下影线长度"""
+    return df[['open', 'close']].min(axis=1) - df['low']
+
+
+def _total_range(df: pd.DataFrame) -> pd.Series:
+    """总振幅（high - low），避免零值"""
+    return (df['high'] - df['low']).replace(0, np.nan)
+
+
+def _is_bullish(df: pd.DataFrame) -> pd.Series:
+    """是否阳线"""
+    return df['close'] > df['open']
+
+
+def _is_bearish(df: pd.DataFrame) -> pd.Series:
+    """是否阴线"""
+    return df['close'] < df['open']
+
+
+# ============================================================
+# 2. 形态识别函数（手动实现）
+# ============================================================
+
+def detect_doji(df: pd.DataFrame) -> pd.Series:
+    """
+    十字星 (Doji)
+    条件: 实体 < 总振幅的 10%
+    方向: 中性 (0)
+    """
+    body = _body(df)
+    total = _total_range(df)
+    return (body / total < 0.10).astype(int)
+
+
+def detect_hammer(df: pd.DataFrame) -> pd.Series:
+    """
+    锤子线 (Hammer) — 底部反转看涨信号
+    条件:
+      - 下影线 > 实体的 2 倍
+      - 上影线 < 实体的 0.5 倍（或 < 总振幅的 15%）
+      - 实体在上半部分
+    """
+    body = _body(df)
+    lower = _lower_shadow(df)
+    upper = _upper_shadow(df)
+    total = _total_range(df)
+
+    cond = (
+        (lower > 2 * body) &
+        (upper < 0.5 * body + 1e-10) &  # 加小值避免零实体问题
+        (body > 0)  # 排除doji
+    )
+    return cond.astype(int)
+
+
+def detect_inverted_hammer(df: pd.DataFrame) -> pd.Series:
+    """
+    倒锤子线 (Inverted Hammer) — 底部反转看涨信号
+    条件:
+      - 上影线 > 实体的 2 倍
+      - 下影线 < 实体的 0.5 倍
+    """
+    body = _body(df)
+    lower = _lower_shadow(df)
+    upper = _upper_shadow(df)
+
+    cond = (
+        (upper > 2 * body) &
+        (lower < 0.5 * body + 1e-10) &
+        (body > 0)
+    )
+    return cond.astype(int)
+
+
+def detect_bullish_engulfing(df: pd.DataFrame) -> pd.Series:
+    """
+    看涨吞没 (Bullish Engulfing)
+    条件:
+      - 前一根阴线，当前阳线
+      - 当前实体完全包裹前一根实体
+    """
+    prev_bearish = _is_bearish(df).shift(1)
+    curr_bullish = _is_bullish(df)
+
+    # 当前开盘 < 前一根收盘 (前一根阴线收盘较低)
+    # 当前收盘 > 前一根开盘
+    cond = (
+        prev_bearish &
+        curr_bullish &
+        (df['open'] <= df['close'].shift(1)) &
+        (df['close'] >= df['open'].shift(1))
+    )
+    return cond.fillna(False).astype(int)
+
+
+def detect_bearish_engulfing(df: pd.DataFrame) -> pd.Series:
+    """
+    看跌吞没 (Bearish Engulfing)
+    条件:
+      - 前一根阳线，当前阴线
+      - 当前实体完全包裹前一根实体
+    """
+    prev_bullish = _is_bullish(df).shift(1)
+    curr_bearish = _is_bearish(df)
+
+    cond = (
+        prev_bullish &
+        curr_bearish &
+        (df['open'] >= df['close'].shift(1)) &
+        (df['close'] <= df['open'].shift(1))
+    )
+    return cond.fillna(False).astype(int)
+
+
+def detect_morning_star(df: pd.DataFrame) -> pd.Series:
+    """
+    晨星 (Morning Star) — 3根K线底部反转
+    条件:
+      - 第1根: 大阴线（实体 > 中位数实体）
+      - 第2根: 小实体（实体 < 中位数实体 * 0.5），跳空低开或接近
+      - 第3根: 大阳线，收盘超过第1根实体中点
+    """
+    body = _body(df)
+    body_signed = _body_signed(df)
+    median_body = body.rolling(window=20, min_periods=10).median()
+
+    # 第1根大阴线
+    bar1_big_bear = (body_signed.shift(2) < 0) & (body.shift(2) > median_body.shift(2))
+    # 第2根小实体
+    bar2_small = body.shift(1) < median_body.shift(1) * 0.5
+    # 第3根大阳线，收盘超过第1根实体中点
+    bar1_mid = (df['open'].shift(2) + df['close'].shift(2)) / 2
+    bar3_big_bull = (body_signed > 0) & (body > median_body) & (df['close'] > bar1_mid)
+
+    cond = bar1_big_bear & bar2_small & bar3_big_bull
+    return cond.fillna(False).astype(int)
+
+
+def detect_evening_star(df: pd.DataFrame) -> pd.Series:
+    """
+    暮星 (Evening Star) — 3根K线顶部反转
+    条件:
+      - 第1根: 大阳线
+      - 第2根: 小实体
+      - 第3根: 大阴线，收盘低于第1根实体中点
+    """
+    body = _body(df)
+    body_signed = _body_signed(df)
+    median_body = body.rolling(window=20, min_periods=10).median()
+
+    bar1_big_bull = (body_signed.shift(2) > 0) & (body.shift(2) > median_body.shift(2))
+    bar2_small = body.shift(1) < median_body.shift(1) * 0.5
+    bar1_mid = (df['open'].shift(2) + df['close'].shift(2)) / 2
+    bar3_big_bear = (body_signed < 0) & (body > median_body) & (df['close'] < bar1_mid)
+
+    cond = bar1_big_bull & bar2_small & bar3_big_bear
+    return cond.fillna(False).astype(int)
+
+
+def detect_three_white_soldiers(df: pd.DataFrame) -> pd.Series:
+    """
+    三阳开泰 (Three White Soldiers)
+    条件:
+      - 连续3根阳线
+      - 每根开盘在前一根实体范围内
+      - 每根收盘创新高
+      - 上影线较小
+    """
+    bullish = _is_bullish(df)
+    body = _body(df)
+    upper = _upper_shadow(df)
+
+    cond = (
+        bullish & bullish.shift(1) & bullish.shift(2) &
+        # 每根收盘逐步升高
+        (df['close'] > df['close'].shift(1)) &
+        (df['close'].shift(1) > df['close'].shift(2)) &
+        # 每根开盘在前一根实体内
+        (df['open'] >= df['open'].shift(1)) &
+        (df['open'] <= df['close'].shift(1)) &
+        (df['open'].shift(1) >= df['open'].shift(2)) &
+        (df['open'].shift(1) <= df['close'].shift(2)) &
+        # 上影线不超过实体的30%
+        (upper < body * 0.3 + 1e-10) &
+        (upper.shift(1) < body.shift(1) * 0.3 + 1e-10)
+    )
+    return cond.fillna(False).astype(int)
+
+
+def detect_three_black_crows(df: pd.DataFrame) -> pd.Series:
+    """
+    三阴断头 (Three Black Crows)
+    条件:
+      - 连续3根阴线
+      - 每根开盘在前一根实体范围内
+      - 每根收盘创新低
+      - 下影线较小
+    """
+    bearish = _is_bearish(df)
+    body = _body(df)
+    lower = _lower_shadow(df)
+
+    cond = (
+        bearish & bearish.shift(1) & bearish.shift(2) &
+        # 每根收盘逐步降低
+        (df['close'] < df['close'].shift(1)) &
+        (df['close'].shift(1) < df['close'].shift(2)) &
+        # 每根开盘在前一根实体内
+        (df['open'] <= df['open'].shift(1)) &
+        (df['open'] >= df['close'].shift(1)) &
+        (df['open'].shift(1) <= df['open'].shift(2)) &
+        (df['open'].shift(1) >= df['close'].shift(2)) &
+        # 下影线不超过实体的30%
+        (lower < body * 0.3 + 1e-10) &
+        (lower.shift(1) < body.shift(1) * 0.3 + 1e-10)
+    )
+    return cond.fillna(False).astype(int)
+
+
+def detect_pin_bar(df: pd.DataFrame) -> pd.Series:
+    """
+    Pin Bar (影线 > 总振幅的 2/3)
+    分为上Pin Bar（看跌）和下Pin Bar（看涨），此处合并检测
+    返回:
+      +1 = 下Pin Bar (长下影，看涨)
+      -1 = 上Pin Bar (长上影，看跌)
+       0 = 无信号
+    """
+    total = _total_range(df)
+    upper = _upper_shadow(df)
+    lower = _lower_shadow(df)
+    threshold = 2.0 / 3.0
+
+    long_lower = (lower / total > threshold)  # 长下影 -> 看涨
+    long_upper = (upper / total > threshold)  # 长上影 -> 看跌
+
+    signal = pd.Series(0, index=df.index)
+    signal[long_lower] = 1   # 看涨Pin Bar
+    signal[long_upper] = -1  # 看跌Pin Bar
+    # 如果同时满足（极端情况），取消信号
+    signal[long_lower & long_upper] = 0
+    return signal
+
+
+def detect_shooting_star(df: pd.DataFrame) -> pd.Series:
+    """
+    流星线 (Shooting Star) — 顶部反转看跌信号
+    条件:
+      - 上影线 > 实体的 2 倍
+      - 下影线 < 实体的 0.5 倍
+      - 在上涨趋势末端（前2根收盘低于当前收盘）
+    """
+    body = _body(df)
+    upper = _upper_shadow(df)
+    lower = _lower_shadow(df)
+
+    cond = (
+        (upper > 2 * body) &
+        (lower < 0.5 * body + 1e-10) &
+        (body > 0) &
+        (df['close'].shift(1) < df['high']) &
+        (df['close'].shift(2) < df['close'].shift(1))
+    )
+    return cond.fillna(False).astype(int)
+
+
+def detect_all_patterns(df: pd.DataFrame) -> Dict[str, pd.Series]:
+    """
+    检测所有K线形态
+    返回字典: {形态名称: 信号序列}
+
+    对于方向性形态：
+      - 看涨形态的值 > 0 表示检测到
+      - 看跌形态的值 > 0 表示检测到
+      - Pin Bar 特殊: +1=看涨, -1=看跌
+    """
+    patterns = {}
+
+    # --- 单根K线形态 ---
+    patterns['Doji'] = detect_doji(df)
+    patterns['Hammer'] = detect_hammer(df)
+    patterns['Inverted_Hammer'] = detect_inverted_hammer(df)
+    patterns['Shooting_Star'] = detect_shooting_star(df)
+    patterns['Pin_Bar_Bull'] = (detect_pin_bar(df) == 1).astype(int)
+    patterns['Pin_Bar_Bear'] = (detect_pin_bar(df) == -1).astype(int)
+
+    # --- 两根K线形态 ---
+    patterns['Bullish_Engulfing'] = detect_bullish_engulfing(df)
+    patterns['Bearish_Engulfing'] = detect_bearish_engulfing(df)
+
+    # --- 三根K线形态 ---
+    patterns['Morning_Star'] = detect_morning_star(df)
+    patterns['Evening_Star'] = detect_evening_star(df)
+    patterns['Three_White_Soldiers'] = detect_three_white_soldiers(df)
+    patterns['Three_Black_Crows'] = detect_three_black_crows(df)
+
+    return patterns
+
+
+# 形态的预期方向映射（+1=看涨, -1=看跌, 0=中性）
+PATTERN_EXPECTED_DIRECTION = {
+    'Doji': 0,
+    'Hammer': 1,
+    'Inverted_Hammer': 1,
+    'Shooting_Star': -1,
+    'Pin_Bar_Bull': 1,
+    'Pin_Bar_Bear': -1,
+    'Bullish_Engulfing': 1,
+    'Bearish_Engulfing': -1,
+    'Morning_Star': 1,
+    'Evening_Star': -1,
+    'Three_White_Soldiers': 1,
+    'Three_Black_Crows': -1,
+}
+
+
+# ============================================================
+# 3. 前向收益分析
+# ============================================================
+
+def calc_forward_returns_multi(close: pd.Series, horizons: List[int] = None) -> pd.DataFrame:
+    """计算多个前向周期的对数收益率"""
+    if horizons is None:
+        horizons = [1, 3, 5, 10, 20]
+    fwd = pd.DataFrame(index=close.index)
+    for h in horizons:
+        fwd[f'fwd_{h}d'] = np.log(close.shift(-h) / close)
+    return fwd
+
+
+def analyze_pattern_returns(pattern_signal: pd.Series, fwd_returns: pd.DataFrame,
+                            expected_dir: int = 0) -> Dict:
+    """
+    对单个形态进行前向收益分析
+
+    参数:
+        pattern_signal: 形态检测信号 (1=出现, 0=未出现)
+        fwd_returns: 前向收益 DataFrame
+        expected_dir: 预期方向 (+1=看涨, -1=看跌, 0=中性)
+
+    返回:
+        统计结果字典
+    """
+    mask = pattern_signal > 0  # Pin_Bar_Bear 已经处理为单独信号
+    n_occurrences = mask.sum()
+
+    result = {'n_occurrences': int(n_occurrences), 'expected_direction': expected_dir}
+
+    if n_occurrences < 3:
+        # 样本太少，跳过
+        for col in fwd_returns.columns:
+            result[f'{col}_mean'] = np.nan
+            result[f'{col}_median'] = np.nan
+            result[f'{col}_pct_positive'] = np.nan
+            result[f'{col}_ttest_pval'] = np.nan
+        result['hit_rate'] = np.nan
+        result['wilson_ci_lower'] = np.nan
+        result['wilson_ci_upper'] = np.nan
+        return result
+
+    for col in fwd_returns.columns:
+        returns = fwd_returns.loc[mask, col].dropna()
+        if len(returns) == 0:
+            result[f'{col}_mean'] = np.nan
+            result[f'{col}_median'] = np.nan
+            result[f'{col}_pct_positive'] = np.nan
+            result[f'{col}_ttest_pval'] = np.nan
+            continue
+
+        result[f'{col}_mean'] = returns.mean()
+        result[f'{col}_median'] = returns.median()
+        result[f'{col}_pct_positive'] = (returns > 0).mean()
+
+        # 单样本 t-test: 均值是否显著不等于 0
+        if len(returns) >= 5:
+            t_stat, t_pval = stats.ttest_1samp(returns, 0)
+            result[f'{col}_ttest_pval'] = t_pval
+        else:
+            result[f'{col}_ttest_pval'] = np.nan
+
+    # --- 命中率 (hit rate) ---
+    # 使用 fwd_1d 作为判断依据
+    if 'fwd_1d' in fwd_returns.columns:
+        ret_1d = fwd_returns.loc[mask, 'fwd_1d'].dropna()
+        if len(ret_1d) > 0:
+            if expected_dir == 1:
+                # 看涨：收益>0 为命中
+                hits = (ret_1d > 0).sum()
+            elif expected_dir == -1:
+                # 看跌：收益<0 为命中
+                hits = (ret_1d < 0).sum()
+            else:
+                # 中性：取绝对值较大方向的准确率
+                hits = max((ret_1d > 0).sum(), (ret_1d < 0).sum())
+
+            n = len(ret_1d)
+            hit_rate = hits / n
+            result['hit_rate'] = hit_rate
+            result['hit_count'] = int(hits)
+            result['hit_n'] = int(n)
+
+            # Wilson 置信区间
+            ci_lower, ci_upper = wilson_confidence_interval(hits, n, alpha=0.05)
+            result['wilson_ci_lower'] = ci_lower
+            result['wilson_ci_upper'] = ci_upper
+
+            # 二项检验: 命中率是否显著高于 50%
+            binom_pval = stats.binomtest(hits, n, 0.5, alternative='greater').pvalue
+            result['binom_pval'] = binom_pval
+        else:
+            result['hit_rate'] = np.nan
+            result['wilson_ci_lower'] = np.nan
+            result['wilson_ci_upper'] = np.nan
+            result['binom_pval'] = np.nan
+    else:
+        result['hit_rate'] = np.nan
+        result['wilson_ci_lower'] = np.nan
+        result['wilson_ci_upper'] = np.nan
+
+    return result
+
+
+# ============================================================
+# 4. Wilson 置信区间 + FDR 校正
+# ============================================================
+
+def wilson_confidence_interval(successes: int, n: int, alpha: float = 0.05) -> Tuple[float, float]:
+    """
+    Wilson 置信区间计算
+
+    比 Wald 区间更适合小样本和极端比例的情况
+
+    参数:
+        successes: 成功次数
+        n: 总次数
+        alpha: 显著性水平
+
+    返回:
+        (lower, upper) 置信区间
+    """
+    if n == 0:
+        return (0.0, 1.0)
+
+    p_hat = successes / n
+    z = stats.norm.ppf(1 - alpha / 2)
+
+    denominator = 1 + z ** 2 / n
+    center = (p_hat + z ** 2 / (2 * n)) / denominator
+    margin = z * np.sqrt((p_hat * (1 - p_hat) + z ** 2 / (4 * n)) / n) / denominator
+
+    lower = max(0, center - margin)
+    upper = min(1, center + margin)
+    return (lower, upper)
+
+
+def benjamini_hochberg(p_values: np.ndarray, alpha: float = 0.05) -> Tuple[np.ndarray, np.ndarray]:
+    """
+    Benjamini-Hochberg FDR 校正
+
+    参数:
+        p_values: 原始 p 值数组
+        alpha: 显著性水平
+
+    返回:
+        (rejected, adjusted_p): 是否拒绝原假设, 校正后p值
+    """
+    n = len(p_values)
+    if n == 0:
+        return np.array([], dtype=bool), np.array([])
+
+    valid_mask = ~np.isnan(p_values)
+    adjusted = np.full(n, np.nan)
+    rejected = np.full(n, False)
+
+    valid_pvals = p_values[valid_mask]
+    n_valid = len(valid_pvals)
+    if n_valid == 0:
+        return rejected, adjusted
+
+    sorted_idx = np.argsort(valid_pvals)
+    sorted_pvals = valid_pvals[sorted_idx]
+
+    rank = np.arange(1, n_valid + 1)
+    adjusted_sorted = sorted_pvals * n_valid / rank
+    adjusted_sorted = np.minimum.accumulate(adjusted_sorted[::-1])[::-1]
+    adjusted_sorted = np.clip(adjusted_sorted, 0, 1)
+
+    valid_indices = np.where(valid_mask)[0]
+    for i, idx in enumerate(sorted_idx):
+        adjusted[valid_indices[idx]] = adjusted_sorted[i]
+        rejected[valid_indices[idx]] = adjusted_sorted[i] <= alpha
+
+    return rejected, adjusted
+
+
+# ============================================================
+# 5. 可视化
+# ============================================================
+
+def plot_pattern_counts(pattern_counts: Dict[str, int], output_dir: Path, prefix: str = "train"):
+    """绘制形态出现次数的柱状图"""
+    fig, ax = plt.subplots(figsize=(12, 6))
+
+    names = list(pattern_counts.keys())
+    counts = list(pattern_counts.values())
+    colors = ['#2ecc71' if PATTERN_EXPECTED_DIRECTION.get(n, 0) >= 0 else '#e74c3c' for n in names]
+
+    bars = ax.barh(range(len(names)), counts, color=colors, edgecolor='gray', linewidth=0.5)
+    ax.set_yticks(range(len(names)))
+    ax.set_yticklabels(names, fontsize=9)
+    ax.set_xlabel('Occurrence Count')
+    ax.set_title(f'Pattern Occurrence Counts - {prefix.upper()} Set')
+
+    # 在柱形上标注数值
+    for bar, count in zip(bars, counts):
+        ax.text(bar.get_width() + 0.5, bar.get_y() + bar.get_height() / 2,
+                str(count), va='center', fontsize=8)
+
+    plt.tight_layout()
+    fig.savefig(output_dir / f"pattern_counts_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] pattern_counts_{prefix}.png")
+
+
+def plot_forward_return_boxplots(patterns: Dict[str, pd.Series], fwd_returns: pd.DataFrame,
+                                  output_dir: Path, prefix: str = "train"):
+    """绘制各形态前向收益的箱线图"""
+    horizons = [c for c in fwd_returns.columns if c.startswith('fwd_')]
+    n_horizons = len(horizons)
+    if n_horizons == 0:
+        return
+
+    # 筛选有足够样本的形态
+    valid_patterns = {name: sig for name, sig in patterns.items() if sig.sum() >= 3}
+    if not valid_patterns:
+        return
+
+    n_patterns = len(valid_patterns)
+    fig, axes = plt.subplots(1, n_horizons, figsize=(4 * n_horizons, max(6, n_patterns * 0.4)))
+    if n_horizons == 1:
+        axes = [axes]
+
+    for ax_idx, horizon in enumerate(horizons):
+        data_list = []
+        labels = []
+        for name, sig in valid_patterns.items():
+            mask = sig > 0
+            ret = fwd_returns.loc[mask, horizon].dropna()
+            if len(ret) > 0:
+                data_list.append(ret.values)
+                labels.append(f"{name} (n={len(ret)})")
+
+        if data_list:
+            bp = axes[ax_idx].boxplot(data_list, vert=False, patch_artist=True, widths=0.6)
+            for patch, name in zip(bp['boxes'], valid_patterns.keys()):
+                direction = PATTERN_EXPECTED_DIRECTION.get(name, 0)
+                patch.set_facecolor('#a8e6cf' if direction >= 0 else '#ffb3b3')
+                patch.set_alpha(0.7)
+            axes[ax_idx].set_yticklabels(labels, fontsize=7)
+            axes[ax_idx].axvline(x=0, color='red', linestyle='--', linewidth=0.8, alpha=0.7)
+            axes[ax_idx].set_xlabel('Log Return')
+            horizon_label = horizon.replace('fwd_', '').replace('d', '-day')
+            axes[ax_idx].set_title(f'{horizon_label} Forward Return')
+
+    plt.suptitle(f'Pattern Forward Returns - {prefix.upper()} Set', fontsize=13)
+    plt.tight_layout()
+    fig.savefig(output_dir / f"pattern_forward_returns_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] pattern_forward_returns_{prefix}.png")
+
+
+def plot_hit_rate_with_ci(results_df: pd.DataFrame, output_dir: Path, prefix: str = "train"):
+    """绘制命中率 + Wilson 置信区间"""
+    # 筛选有效数据
+    valid = results_df.dropna(subset=['hit_rate', 'wilson_ci_lower', 'wilson_ci_upper'])
+    if len(valid) == 0:
+        return
+
+    fig, ax = plt.subplots(figsize=(12, max(6, len(valid) * 0.5)))
+
+    names = valid.index.tolist()
+    hit_rates = valid['hit_rate'].values
+    ci_lower = valid['wilson_ci_lower'].values
+    ci_upper = valid['wilson_ci_upper'].values
+
+    y_pos = range(len(names))
+    # 置信区间误差条
+    xerr_lower = hit_rates - ci_lower
+    xerr_upper = ci_upper - hit_rates
+    xerr = np.array([xerr_lower, xerr_upper])
+
+    colors = ['#2ecc71' if hr > 0.5 else '#e74c3c' for hr in hit_rates]
+    ax.barh(y_pos, hit_rates, xerr=xerr, color=colors, edgecolor='gray',
+            linewidth=0.5, alpha=0.8, capsize=3, ecolor='black')
+    ax.axvline(x=0.5, color='blue', linestyle='--', linewidth=1.0, label='50% baseline')
+
+    # 标注 FDR 校正结果
+    if 'binom_adj_pval' in valid.columns:
+        for i, name in enumerate(names):
+            adj_p = valid.loc[name, 'binom_adj_pval']
+            marker = ''
+            if not np.isnan(adj_p):
+                if adj_p < 0.01:
+                    marker = ' ***'
+                elif adj_p < 0.05:
+                    marker = ' **'
+                elif adj_p < 0.10:
+                    marker = ' *'
+            ax.text(ci_upper[i] + 0.01, i, f"{hit_rates[i]:.1%}{marker}", va='center', fontsize=8)
+    else:
+        for i in range(len(names)):
+            ax.text(ci_upper[i] + 0.01, i, f"{hit_rates[i]:.1%}", va='center', fontsize=8)
+
+    ax.set_yticks(y_pos)
+    ax.set_yticklabels(names, fontsize=9)
+    ax.set_xlabel('Hit Rate')
+    ax.set_title(f'Pattern Hit Rate with Wilson CI - {prefix.upper()} Set\n(* p<0.10, ** p<0.05, *** p<0.01 after FDR)')
+    ax.legend(fontsize=9)
+    ax.set_xlim(0, 1)
+
+    plt.tight_layout()
+    fig.savefig(output_dir / f"pattern_hit_rate_{prefix}.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [saved] pattern_hit_rate_{prefix}.png")
+
+
+# ============================================================
+# 6. 主流程
+# ============================================================
+
+def evaluate_patterns_on_set(df: pd.DataFrame, patterns: Dict[str, pd.Series],
+                              set_name: str) -> pd.DataFrame:
+    """
+    在给定数据集上评估所有形态
+
+    参数:
+        df: 数据集 DataFrame (含 OHLCV)
+        patterns: 形态信号字典
+        set_name: 数据集名称（用于打印）
+
+    返回:
+        包含统计结果的 DataFrame
+    """
+    close = df['close']
+    fwd_returns = calc_forward_returns_multi(close, horizons=[1, 3, 5, 10, 20])
+
+    results = {}
+    for name, signal in patterns.items():
+        sig = signal.reindex(df.index).fillna(0)
+        expected_dir = PATTERN_EXPECTED_DIRECTION.get(name, 0)
+        results[name] = analyze_pattern_returns(sig, fwd_returns, expected_dir)
+
+    results_df = pd.DataFrame(results).T
+    results_df.index.name = 'pattern'
+
+    print(f"\n{'='*60}")
+    print(f"  {set_name} 数据集形态评估结果")
+    print(f"{'='*60}")
+
+    # 打印形态出现次数
+    print(f"\n  形态出现次数:")
+    for name in results_df.index:
+        n = int(results_df.loc[name, 'n_occurrences'])
+        print(f"    {name}: {n} 次")
+
+    return results_df
+
+
+def apply_fdr_to_patterns(results_df: pd.DataFrame, alpha: float = 0.05) -> pd.DataFrame:
+    """
+    对形态检验的多个 p 值进行 FDR 校正
+
+    校正的 p 值列:
+      - 各前向周期的 t-test p 值
+      - 二项检验 p 值
+    """
+    # t-test p 值列
+    ttest_cols = [c for c in results_df.columns if c.endswith('_ttest_pval')]
+    all_pval_cols = ttest_cols.copy()
+
+    if 'binom_pval' in results_df.columns:
+        all_pval_cols.append('binom_pval')
+
+    for col in all_pval_cols:
+        pvals = results_df[col].values.astype(float)
+        rejected, adjusted = benjamini_hochberg(pvals, alpha)
+        adj_col = col.replace('_pval', '_adj_pval')
+        rej_col = col.replace('_pval', '_rejected')
+        results_df[adj_col] = adjusted
+        results_df[rej_col] = rejected
+
+    return results_df
+
+
+def run_patterns_analysis(df: pd.DataFrame, output_dir: str) -> Dict:
+    """
+    K线形态识别与统计验证主入口
+
+    参数:
+        df: 完整的日线 DataFrame（含 open/high/low/close/volume 等列，DatetimeIndex）
+        output_dir: 图表输出目录
+
+    返回:
+        包含训练集和验证集结果的字典
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("  K线形态识别与统计验证")
+    print("=" * 60)
+
+    # --- 数据切分 ---
+    train, val, test = split_data(df)
+    print(f"\n训练集: {train.index.min()} ~ {train.index.max()}  ({len(train)} bars)")
+    print(f"验证集: {val.index.min()} ~ {val.index.max()}  ({len(val)} bars)")
+
+    # --- 检测所有形态（在全量数据上计算） ---
+    all_patterns = detect_all_patterns(df)
+    print(f"\n共检测 {len(all_patterns)} 种K线形态")
+
+    # ============ 训练集评估 ============
+    train_results = evaluate_patterns_on_set(train, all_patterns, "训练集 (TRAIN)")
+
+    # FDR 校正
+    train_results = apply_fdr_to_patterns(train_results, alpha=0.05)
+
+    # 找出显著形态
+    reject_cols = [c for c in train_results.columns if c.endswith('_rejected')]
+    if reject_cols:
+        train_results['any_fdr_pass'] = train_results[reject_cols].any(axis=1)
+        fdr_passed_train = train_results[train_results['any_fdr_pass']].index.tolist()
+    else:
+        fdr_passed_train = []
+
+    print(f"\n--- FDR 校正结果 (训练集) ---")
+    if fdr_passed_train:
+        print(f"  通过 FDR 校正的形态 ({len(fdr_passed_train)} 个):")
+        for name in fdr_passed_train:
+            row = train_results.loc[name]
+            hr = row.get('hit_rate', np.nan)
+            n = int(row.get('n_occurrences', 0))
+            hr_str = f", hit_rate={hr:.1%}" if not np.isnan(hr) else ""
+            print(f"    - {name}: n={n}{hr_str}")
+    else:
+        print("  没有形态通过 FDR 校正（alpha=0.05）")
+
+    # --- 训练集可视化 ---
+    print("\n--- 训练集可视化 ---")
+    train_counts = {name: int(train_results.loc[name, 'n_occurrences']) for name in train_results.index}
+    plot_pattern_counts(train_counts, output_dir, prefix="train")
+
+    train_patterns_in_set = {name: sig.reindex(train.index).fillna(0) for name, sig in all_patterns.items()}
+    train_fwd = calc_forward_returns_multi(train['close'], horizons=[1, 3, 5, 10, 20])
+    plot_forward_return_boxplots(train_patterns_in_set, train_fwd, output_dir, prefix="train")
+    plot_hit_rate_with_ci(train_results, output_dir, prefix="train")
+
+    # ============ 验证集评估 ============
+    val_results = evaluate_patterns_on_set(val, all_patterns, "验证集 (VAL)")
+    val_results = apply_fdr_to_patterns(val_results, alpha=0.05)
+
+    reject_cols_val = [c for c in val_results.columns if c.endswith('_rejected')]
+    if reject_cols_val:
+        val_results['any_fdr_pass'] = val_results[reject_cols_val].any(axis=1)
+        fdr_passed_val = val_results[val_results['any_fdr_pass']].index.tolist()
+    else:
+        fdr_passed_val = []
+
+    print(f"\n--- FDR 校正结果 (验证集) ---")
+    if fdr_passed_val:
+        print(f"  通过 FDR 校正的形态 ({len(fdr_passed_val)} 个):")
+        for name in fdr_passed_val:
+            row = val_results.loc[name]
+            hr = row.get('hit_rate', np.nan)
+            n = int(row.get('n_occurrences', 0))
+            hr_str = f", hit_rate={hr:.1%}" if not np.isnan(hr) else ""
+            print(f"    - {name}: n={n}{hr_str}")
+    else:
+        print("  没有形态通过 FDR 校正（alpha=0.05）")
+
+    # --- 训练集 vs 验证集对比 ---
+    if 'hit_rate' in train_results.columns and 'hit_rate' in val_results.columns:
+        print(f"\n--- 训练集 vs 验证集命中率对比 ---")
+        for name in train_results.index:
+            tr_hr = train_results.loc[name, 'hit_rate'] if name in train_results.index else np.nan
+            va_hr = val_results.loc[name, 'hit_rate'] if name in val_results.index else np.nan
+            if np.isnan(tr_hr) or np.isnan(va_hr):
+                continue
+            diff = va_hr - tr_hr
+            label = "STABLE" if abs(diff) < 0.05 else ("IMPROVE" if diff > 0 else "DECAY")
+            print(f"  {name}: train={tr_hr:.1%}, val={va_hr:.1%}, diff={diff:+.1%} [{label}]")
+
+    # --- 验证集可视化 ---
+    print("\n--- 验证集可视化 ---")
+    val_counts = {name: int(val_results.loc[name, 'n_occurrences']) for name in val_results.index}
+    plot_pattern_counts(val_counts, output_dir, prefix="val")
+
+    val_patterns_in_set = {name: sig.reindex(val.index).fillna(0) for name, sig in all_patterns.items()}
+    val_fwd = calc_forward_returns_multi(val['close'], horizons=[1, 3, 5, 10, 20])
+    plot_forward_return_boxplots(val_patterns_in_set, val_fwd, output_dir, prefix="val")
+    plot_hit_rate_with_ci(val_results, output_dir, prefix="val")
+
+    print(f"\n{'='*60}")
+    print("  K线形态识别与统计验证完成")
+    print(f"{'='*60}")
+
+    return {
+        'train_results': train_results,
+        'val_results': val_results,
+        'fdr_passed_train': fdr_passed_train,
+        'fdr_passed_val': fdr_passed_val,
+        'all_patterns': all_patterns,
+    }
diff --git a/src/power_law_analysis.py b/src/power_law_analysis.py
new file mode 100644
index 0000000..e83c67f
--- /dev/null
+++ b/src/power_law_analysis.py
@@ -0,0 +1,468 @@
+"""幂律增长拟合与走廊模型分析
+
+通过幂律模型拟合BTC价格的长期增长趋势，构建价格走廊，
+并与指数增长模型进行比较，评估当前价格在历史分布中的位置。
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy import stats
+from scipy.optimize import curve_fit
+from pathlib import Path
+from typing import Tuple, Dict
+
+# 中文显示支持
+plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+plt.rcParams['axes.unicode_minus'] = False
+
+
+def _compute_days_since_start(df: pd.DataFrame) -> np.ndarray:
+    """计算距离起始日的天数（从1开始，避免log(0)）"""
+    days = (df.index - df.index[0]).days.astype(float) + 1.0
+    return days
+
+
+def _fit_power_law(log_days: np.ndarray, log_prices: np.ndarray) -> Dict:
+    """对数-对数线性回归拟合幂律模型
+
+    模型: log(price) = slope * log(days) + intercept
+    等价于: price = exp(intercept) * days^slope
+
+    Returns
+    -------
+    dict
+        包含 slope, intercept, r_squared, residuals, fitted_values
+    """
+    slope, intercept, r_value, p_value, std_err = stats.linregress(log_days, log_prices)
+    fitted = slope * log_days + intercept
+    residuals = log_prices - fitted
+
+    return {
+        'slope': slope,           # 幂律指数 α
+        'intercept': intercept,   # log(c)
+        'r_squared': r_value ** 2,
+        'p_value': p_value,
+        'std_err': std_err,
+        'residuals': residuals,
+        'fitted_values': fitted,
+    }
+
+
+def _build_corridor(
+    log_days: np.ndarray,
+    fit_result: Dict,
+    quantiles: Tuple[float, ...] = (0.05, 0.50, 0.95),
+) -> Dict[float, np.ndarray]:
+    """基于残差分位数构建幂律走廊
+
+    Parameters
+    ----------
+    log_days : array
+        log(天数) 序列
+    fit_result : dict
+        幂律拟合结果
+    quantiles : tuple
+        走廊分位数
+
+    Returns
+    -------
+    dict
+        分位数 -> 走廊价格（原始尺度）
+    """
+    residuals = fit_result['residuals']
+    corridor = {}
+    for q in quantiles:
+        q_val = np.quantile(residuals, q)
+        # log_price = slope * log_days + intercept + quantile_offset
+        log_price_band = fit_result['slope'] * log_days + fit_result['intercept'] + q_val
+        corridor[q] = np.exp(log_price_band)
+    return corridor
+
+
+def _power_law_func(days: np.ndarray, c: float, alpha: float) -> np.ndarray:
+    """幂律函数: price = c * days^alpha"""
+    return c * np.power(days, alpha)
+
+
+def _exponential_func(days: np.ndarray, c: float, beta: float) -> np.ndarray:
+    """指数函数: price = c * exp(beta * days)"""
+    return c * np.exp(beta * days)
+
+
+def _compute_aic_bic(n: int, k: int, rss: float) -> Tuple[float, float]:
+    """计算AIC和BIC
+
+    Parameters
+    ----------
+    n : int
+        样本量
+    k : int
+        模型参数个数
+    rss : float
+        残差平方和
+
+    Returns
+    -------
+    tuple
+        (AIC, BIC)
+    """
+    # 对数似然 (假设正态分布残差)
+    log_likelihood = -n / 2 * (np.log(2 * np.pi * rss / n) + 1)
+    aic = 2 * k - 2 * log_likelihood
+    bic = k * np.log(n) - 2 * log_likelihood
+    return aic, bic
+
+
+def _fit_and_compare_models(
+    days: np.ndarray, prices: np.ndarray
+) -> Dict:
+    """拟合幂律和指数增长模型并比较AIC/BIC
+
+    Returns
+    -------
+    dict
+        包含两个模型的参数、AIC、BIC及比较结论
+    """
+    n = len(prices)
+    k = 2  # 两个模型都有2个参数
+
+    # --- 幂律拟合: price = c * days^alpha ---
+    try:
+        popt_pl, _ = curve_fit(
+            _power_law_func, days, prices,
+            p0=[1.0, 1.5], maxfev=10000
+        )
+        prices_pred_pl = _power_law_func(days, *popt_pl)
+        rss_pl = np.sum((prices - prices_pred_pl) ** 2)
+        aic_pl, bic_pl = _compute_aic_bic(n, k, rss_pl)
+    except RuntimeError:
+        # curve_fit 失败时回退到对数空间OLS估计
+        log_d = np.log(days)
+        log_p = np.log(prices)
+        slope, intercept, _, _, _ = stats.linregress(log_d, log_p)
+        popt_pl = [np.exp(intercept), slope]
+        prices_pred_pl = _power_law_func(days, *popt_pl)
+        rss_pl = np.sum((prices - prices_pred_pl) ** 2)
+        aic_pl, bic_pl = _compute_aic_bic(n, k, rss_pl)
+
+    # --- 指数拟合: price = c * exp(beta * days) ---
+    # 初始值通过log空间OLS估计
+    log_p = np.log(prices)
+    beta_init, log_c_init, _, _, _ = stats.linregress(days, log_p)
+    try:
+        popt_exp, _ = curve_fit(
+            _exponential_func, days, prices,
+            p0=[np.exp(log_c_init), beta_init], maxfev=10000
+        )
+        prices_pred_exp = _exponential_func(days, *popt_exp)
+        rss_exp = np.sum((prices - prices_pred_exp) ** 2)
+        aic_exp, bic_exp = _compute_aic_bic(n, k, rss_exp)
+    except (RuntimeError, OverflowError):
+        # 指数拟合容易溢出，使用log空间线性回归作替代
+        popt_exp = [np.exp(log_c_init), beta_init]
+        prices_pred_exp = _exponential_func(days, *popt_exp)
+        # 裁剪防止溢出
+        prices_pred_exp = np.clip(prices_pred_exp, 0, prices.max() * 100)
+        rss_exp = np.sum((prices - prices_pred_exp) ** 2)
+        aic_exp, bic_exp = _compute_aic_bic(n, k, rss_exp)
+
+    return {
+        'power_law': {
+            'params': {'c': popt_pl[0], 'alpha': popt_pl[1]},
+            'aic': aic_pl,
+            'bic': bic_pl,
+            'rss': rss_pl,
+            'predicted': prices_pred_pl,
+        },
+        'exponential': {
+            'params': {'c': popt_exp[0], 'beta': popt_exp[1]},
+            'aic': aic_exp,
+            'bic': bic_exp,
+            'rss': rss_exp,
+            'predicted': prices_pred_exp,
+        },
+        'preferred': 'power_law' if aic_pl < aic_exp else 'exponential',
+    }
+
+
+def _compute_current_percentile(residuals: np.ndarray) -> float:
+    """计算当前价格（最后一个残差）在历史残差分布中的百分位
+
+    Returns
+    -------
+    float
+        百分位数 (0-100)
+    """
+    current_residual = residuals[-1]
+    percentile = stats.percentileofscore(residuals, current_residual)
+    return percentile
+
+
+# =============================================================================
+#  可视化函数
+# =============================================================================
+
+def _plot_loglog_regression(
+    log_days: np.ndarray,
+    log_prices: np.ndarray,
+    fit_result: Dict,
+    dates: pd.DatetimeIndex,
+    output_dir: Path,
+):
+    """图1: 对数-对数散点图 + 回归线"""
+    fig, ax = plt.subplots(figsize=(12, 7))
+
+    ax.scatter(log_days, log_prices, s=3, alpha=0.5, color='steelblue', label='实际价格')
+    ax.plot(log_days, fit_result['fitted_values'], color='red', linewidth=2,
+            label=f"回归线: slope={fit_result['slope']:.4f}, R²={fit_result['r_squared']:.4f}")
+
+    ax.set_xlabel('log(天数)', fontsize=12)
+    ax.set_ylabel('log(价格)', fontsize=12)
+    ax.set_title('BTC 幂律拟合 — 对数-对数回归', fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'power_law_loglog_regression.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] 对数-对数回归已保存: {output_dir / 'power_law_loglog_regression.png'}")
+
+
+def _plot_corridor(
+    df: pd.DataFrame,
+    days: np.ndarray,
+    corridor: Dict[float, np.ndarray],
+    fit_result: Dict,
+    output_dir: Path,
+):
+    """图2: 幂律走廊模型（价格 + 5%/50%/95% 通道）"""
+    fig, ax = plt.subplots(figsize=(14, 7))
+
+    # 实际价格
+    ax.semilogy(df.index, df['close'], color='black', linewidth=0.8, label='BTC 收盘价')
+
+    # 走廊带
+    colors = {0.05: 'green', 0.50: 'orange', 0.95: 'red'}
+    labels = {0.05: '5% 下界', 0.50: '50% 中位线', 0.95: '95% 上界'}
+    for q, band in corridor.items():
+        ax.semilogy(df.index, band, color=colors[q], linewidth=1.5,
+                     linestyle='--', label=labels[q])
+
+    # 填充走廊区间
+    ax.fill_between(df.index, corridor[0.05], corridor[0.95],
+                     alpha=0.1, color='blue', label='90% 走廊区间')
+
+    ax.set_xlabel('日期', fontsize=12)
+    ax.set_ylabel('价格 (USDT, 对数尺度)', fontsize=12)
+    ax.set_title('BTC 幂律走廊模型', fontsize=14)
+    ax.legend(fontsize=10, loc='upper left')
+    ax.grid(True, alpha=0.3, which='both')
+
+    fig.savefig(output_dir / 'power_law_corridor.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] 幂律走廊已保存: {output_dir / 'power_law_corridor.png'}")
+
+
+def _plot_model_comparison(
+    df: pd.DataFrame,
+    days: np.ndarray,
+    comparison: Dict,
+    output_dir: Path,
+):
+    """图3: 幂律 vs 指数增长模型对比"""
+    fig, axes = plt.subplots(1, 2, figsize=(16, 7))
+
+    # 左图: 价格对比
+    ax1 = axes[0]
+    ax1.semilogy(df.index, df['close'], color='black', linewidth=0.8, label='实际价格')
+    ax1.semilogy(df.index, comparison['power_law']['predicted'],
+                  color='blue', linewidth=1.5, linestyle='--', label='幂律拟合')
+    ax1.semilogy(df.index, np.clip(comparison['exponential']['predicted'], 1e-1, None),
+                  color='red', linewidth=1.5, linestyle='--', label='指数拟合')
+    ax1.set_xlabel('日期', fontsize=11)
+    ax1.set_ylabel('价格 (USDT, 对数尺度)', fontsize=11)
+    ax1.set_title('模型拟合对比', fontsize=13)
+    ax1.legend(fontsize=10)
+    ax1.grid(True, alpha=0.3, which='both')
+
+    # 右图: AIC/BIC 柱状图
+    ax2 = axes[1]
+    models = ['幂律模型', '指数模型']
+    aic_vals = [comparison['power_law']['aic'], comparison['exponential']['aic']]
+    bic_vals = [comparison['power_law']['bic'], comparison['exponential']['bic']]
+
+    x = np.arange(len(models))
+    width = 0.35
+    bars1 = ax2.bar(x - width / 2, aic_vals, width, label='AIC', color='steelblue')
+    bars2 = ax2.bar(x + width / 2, bic_vals, width, label='BIC', color='coral')
+
+    ax2.set_xticks(x)
+    ax2.set_xticklabels(models, fontsize=11)
+    ax2.set_ylabel('信息准则值', fontsize=11)
+    ax2.set_title('AIC / BIC 模型比较', fontsize=13)
+    ax2.legend(fontsize=10)
+    ax2.grid(True, alpha=0.3, axis='y')
+
+    # 添加数值标签
+    for bar in bars1:
+        ax2.text(bar.get_x() + bar.get_width() / 2, bar.get_height(),
+                 f'{bar.get_height():.0f}', ha='center', va='bottom', fontsize=9)
+    for bar in bars2:
+        ax2.text(bar.get_x() + bar.get_width() / 2, bar.get_height(),
+                 f'{bar.get_height():.0f}', ha='center', va='bottom', fontsize=9)
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'power_law_model_comparison.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] 模型对比已保存: {output_dir / 'power_law_model_comparison.png'}")
+
+
+def _plot_residual_distribution(
+    residuals: np.ndarray,
+    current_percentile: float,
+    output_dir: Path,
+):
+    """图4: 残差分布 + 当前位置"""
+    fig, ax = plt.subplots(figsize=(10, 6))
+
+    ax.hist(residuals, bins=60, density=True, alpha=0.6, color='steelblue',
+            edgecolor='white', label='残差分布')
+
+    # 当前位置
+    current_res = residuals[-1]
+    ax.axvline(current_res, color='red', linewidth=2, linestyle='--',
+               label=f'当前位置: {current_percentile:.1f}%')
+
+    # 分位数线
+    for q, color, label in [(0.05, 'green', '5%'), (0.50, 'orange', '50%'), (0.95, 'red', '95%')]:
+        q_val = np.quantile(residuals, q)
+        ax.axvline(q_val, color=color, linewidth=1, linestyle=':',
+                   alpha=0.7, label=f'{label} 分位: {q_val:.3f}')
+
+    ax.set_xlabel('残差 (log尺度)', fontsize=12)
+    ax.set_ylabel('密度', fontsize=12)
+    ax.set_title(f'幂律残差分布 — 当前价格位于 {current_percentile:.1f}% 分位', fontsize=14)
+    ax.legend(fontsize=9)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'power_law_residual_distribution.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] 残差分布已保存: {output_dir / 'power_law_residual_distribution.png'}")
+
+
+# =============================================================================
+#  主入口
+# =============================================================================
+
+def run_power_law_analysis(df: pd.DataFrame, output_dir: str = "output") -> Dict:
+    """幂律增长拟合与走廊模型 — 主入口函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        由 data_loader.load_daily() 返回的日线数据，含 DatetimeIndex 和 close 列
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        分析结果摘要
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("  BTC 幂律增长分析")
+    print("=" * 60)
+
+    prices = df['close'].dropna()
+
+    # ---- 步骤1: 准备数据 ----
+    days = _compute_days_since_start(df.loc[prices.index])
+    log_days = np.log(days)
+    log_prices = np.log(prices.values)
+
+    print(f"\n数据范围: {prices.index[0].date()} ~ {prices.index[-1].date()}")
+    print(f"样本数量: {len(prices)}")
+
+    # ---- 步骤2: 对数-对数线性回归 ----
+    print("\n--- 对数-对数线性回归 ---")
+    fit_result = _fit_power_law(log_days, log_prices)
+    print(f"  幂律指数 (slope/α): {fit_result['slope']:.6f}")
+    print(f"  截距 log(c):        {fit_result['intercept']:.6f}")
+    print(f"  等价系数 c:         {np.exp(fit_result['intercept']):.6f}")
+    print(f"  R²:                 {fit_result['r_squared']:.6f}")
+    print(f"  p-value:            {fit_result['p_value']:.2e}")
+    print(f"  标准误差:            {fit_result['std_err']:.6f}")
+
+    # ---- 步骤3: 幂律走廊模型 ----
+    print("\n--- 幂律走廊模型 ---")
+    quantiles = (0.05, 0.50, 0.95)
+    corridor = _build_corridor(log_days, fit_result, quantiles)
+    for q in quantiles:
+        print(f"  {int(q * 100):>3d}% 分位当前走廊价格: ${corridor[q][-1]:,.0f}")
+
+    # ---- 步骤4: 模型比较 (幂律 vs 指数) ----
+    print("\n--- 模型比较: 幂律 vs 指数 ---")
+    comparison = _fit_and_compare_models(days, prices.values)
+
+    pl = comparison['power_law']
+    exp = comparison['exponential']
+    print(f"  幂律模型:  c={pl['params']['c']:.4f}, α={pl['params']['alpha']:.4f}")
+    print(f"             AIC={pl['aic']:.0f}, BIC={pl['bic']:.0f}")
+    print(f"  指数模型:  c={exp['params']['c']:.4f}, β={exp['params']['beta']:.6f}")
+    print(f"             AIC={exp['aic']:.0f}, BIC={exp['bic']:.0f}")
+    print(f"  AIC 差值 (幂律-指数): {pl['aic'] - exp['aic']:.0f}")
+    print(f"  BIC 差值 (幂律-指数): {pl['bic'] - exp['bic']:.0f}")
+    print(f"  >> 优选模型: {comparison['preferred']}")
+
+    # ---- 步骤5: 当前价格位置 ----
+    print("\n--- 当前价格位置 ---")
+    current_percentile = _compute_current_percentile(fit_result['residuals'])
+    current_price = prices.iloc[-1]
+    print(f"  当前价格: ${current_price:,.2f}")
+    print(f"  历史残差分位: {current_percentile:.1f}%")
+    if current_percentile > 90:
+        print("  >> 警告: 当前价格处于历史高估区域")
+    elif current_percentile < 10:
+        print("  >> 提示: 当前价格处于历史低估区域")
+    else:
+        print("  >> 当前价格处于历史正常波动范围内")
+
+    # ---- 步骤6: 生成可视化 ----
+    print("\n--- 生成可视化图表 ---")
+    _plot_loglog_regression(log_days, log_prices, fit_result, prices.index, output_dir)
+    _plot_corridor(df.loc[prices.index], days, corridor, fit_result, output_dir)
+    _plot_model_comparison(df.loc[prices.index], days, comparison, output_dir)
+    _plot_residual_distribution(fit_result['residuals'], current_percentile, output_dir)
+
+    print("\n" + "=" * 60)
+    print("  幂律分析完成")
+    print("=" * 60)
+
+    # 返回结果摘要
+    return {
+        'r_squared': fit_result['r_squared'],
+        'power_exponent': fit_result['slope'],
+        'intercept': fit_result['intercept'],
+        'corridor_prices': {q: corridor[q][-1] for q in quantiles},
+        'model_comparison': {
+            'power_law_aic': pl['aic'],
+            'power_law_bic': pl['bic'],
+            'exponential_aic': exp['aic'],
+            'exponential_bic': exp['bic'],
+            'preferred': comparison['preferred'],
+        },
+        'current_price': current_price,
+        'current_percentile': current_percentile,
+    }
+
+
+if __name__ == '__main__':
+    from data_loader import load_daily
+    df = load_daily()
+    results = run_power_law_analysis(df, output_dir='../output/power_law')
diff --git a/src/preprocessing.py b/src/preprocessing.py
new file mode 100644
index 0000000..c9a0ea5
--- /dev/null
+++ b/src/preprocessing.py
@@ -0,0 +1,80 @@
+"""数据预处理模块 - 收益率、去趋势、标准化、衍生指标"""
+
+import pandas as pd
+import numpy as np
+from typing import Optional
+
+
+def log_returns(prices: pd.Series) -> pd.Series:
+    """对数收益率"""
+    return np.log(prices / prices.shift(1)).dropna()
+
+
+def simple_returns(prices: pd.Series) -> pd.Series:
+    """简单收益率"""
+    return prices.pct_change().dropna()
+
+
+def detrend_log_diff(prices: pd.Series) -> pd.Series:
+    """对数差分去趋势"""
+    return np.log(prices).diff().dropna()
+
+
+def detrend_linear(series: pd.Series) -> pd.Series:
+    """线性去趋势"""
+    x = np.arange(len(series))
+    coeffs = np.polyfit(x, series.values, 1)
+    trend = np.polyval(coeffs, x)
+    return pd.Series(series.values - trend, index=series.index)
+
+
+def hp_filter(series: pd.Series, lamb: float = 1600) -> tuple:
+    """Hodrick-Prescott 滤波器"""
+    from statsmodels.tsa.filters.hp_filter import hpfilter
+    cycle, trend = hpfilter(series.dropna(), lamb=lamb)
+    return cycle, trend
+
+
+def rolling_volatility(returns: pd.Series, window: int = 30) -> pd.Series:
+    """滚动波动率（年化）"""
+    return returns.rolling(window=window).std() * np.sqrt(365)
+
+
+def realized_volatility(returns: pd.Series, window: int = 30) -> pd.Series:
+    """已实现波动率"""
+    return np.sqrt((returns ** 2).rolling(window=window).sum())
+
+
+def taker_buy_ratio(df: pd.DataFrame) -> pd.Series:
+    """Taker买入比例"""
+    return df["taker_buy_volume"] / df["volume"].replace(0, np.nan)
+
+
+def add_derived_features(df: pd.DataFrame) -> pd.DataFrame:
+    """添加常用衍生特征列"""
+    out = df.copy()
+    out["log_return"] = log_returns(df["close"])
+    out["simple_return"] = simple_returns(df["close"])
+    out["log_price"] = np.log(df["close"])
+    out["range_pct"] = (df["high"] - df["low"]) / df["close"]
+    out["body_pct"] = (df["close"] - df["open"]) / df["open"]
+    out["taker_buy_ratio"] = taker_buy_ratio(df)
+    out["vol_30d"] = rolling_volatility(out["log_return"], 30)
+    out["vol_7d"] = rolling_volatility(out["log_return"], 7)
+    out["volume_ma20"] = df["volume"].rolling(20).mean()
+    out["volume_ratio"] = df["volume"] / out["volume_ma20"]
+    out["abs_return"] = out["log_return"].abs()
+    out["squared_return"] = out["log_return"] ** 2
+    return out
+
+
+def standardize(series: pd.Series) -> pd.Series:
+    """Z-score标准化"""
+    return (series - series.mean()) / series.std()
+
+
+def winsorize(series: pd.Series, lower: float = 0.01, upper: float = 0.99) -> pd.Series:
+    """Winsorize处理极端值"""
+    lo = series.quantile(lower)
+    hi = series.quantile(upper)
+    return series.clip(lo, hi)
diff --git a/src/returns_analysis.py b/src/returns_analysis.py
new file mode 100644
index 0000000..f965756
--- /dev/null
+++ b/src/returns_analysis.py
@@ -0,0 +1,479 @@
+"""收益率分布分析与GARCH建模模块
+
+分析内容：
+- 正态性检验（KS、JB、AD）
+- 厚尾特征分析（峰度、偏度、超越比率）
+- 多时间尺度收益率分布对比
+- QQ图
+- GARCH(1,1) 条件波动率建模
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from matplotlib.gridspec import GridSpec
+from scipy import stats
+from pathlib import Path
+from typing import Optional
+
+from src.data_loader import load_klines
+from src.preprocessing import log_returns
+
+
+# ============================================================
+# 1. 正态性检验
+# ============================================================
+
+def normality_tests(returns: pd.Series) -> dict:
+    """
+    对收益率序列进行多种正态性检验
+
+    Parameters
+    ----------
+    returns : pd.Series
+        对数收益率序列（已去除NaN）
+
+    Returns
+    -------
+    dict
+        包含KS、JB、AD检验统计量和p值的字典
+    """
+    r = returns.dropna().values
+
+    # Kolmogorov-Smirnov 检验（与标准正态比较）
+    r_standardized = (r - r.mean()) / r.std()
+    ks_stat, ks_p = stats.kstest(r_standardized, 'norm')
+
+    # Jarque-Bera 检验
+    jb_stat, jb_p = stats.jarque_bera(r)
+
+    # Anderson-Darling 检验
+    ad_result = stats.anderson(r, dist='norm')
+
+    results = {
+        'ks_statistic': ks_stat,
+        'ks_pvalue': ks_p,
+        'jb_statistic': jb_stat,
+        'jb_pvalue': jb_p,
+        'ad_statistic': ad_result.statistic,
+        'ad_critical_values': dict(zip(
+            [f'{sl}%' for sl in ad_result.significance_level],
+            ad_result.critical_values
+        )),
+    }
+    return results
+
+
+# ============================================================
+# 2. 厚尾分析
+# ============================================================
+
+def fat_tail_analysis(returns: pd.Series) -> dict:
+    """
+    厚尾特征分析：峰度、偏度、σ超越比率
+
+    Parameters
+    ----------
+    returns : pd.Series
+        对数收益率序列
+
+    Returns
+    -------
+    dict
+        峰度、偏度、3σ/4σ超越比率及其与正态分布的对比
+    """
+    r = returns.dropna().values
+    mu, sigma = r.mean(), r.std()
+
+    # 基础统计
+    excess_kurtosis = stats.kurtosis(r)  # scipy默认是excess kurtosis
+    skewness = stats.skew(r)
+
+    # 实际超越比率
+    r_std = (r - mu) / sigma
+    exceed_3sigma = np.mean(np.abs(r_std) > 3)
+    exceed_4sigma = np.mean(np.abs(r_std) > 4)
+
+    # 正态分布理论超越比率
+    normal_3sigma = 2 * (1 - stats.norm.cdf(3))  # ≈ 0.0027
+    normal_4sigma = 2 * (1 - stats.norm.cdf(4))  # ≈ 0.0001
+
+    results = {
+        'excess_kurtosis': excess_kurtosis,
+        'skewness': skewness,
+        'exceed_3sigma_actual': exceed_3sigma,
+        'exceed_3sigma_normal': normal_3sigma,
+        'exceed_3sigma_ratio': exceed_3sigma / normal_3sigma if normal_3sigma > 0 else np.inf,
+        'exceed_4sigma_actual': exceed_4sigma,
+        'exceed_4sigma_normal': normal_4sigma,
+        'exceed_4sigma_ratio': exceed_4sigma / normal_4sigma if normal_4sigma > 0 else np.inf,
+    }
+    return results
+
+
+# ============================================================
+# 3. 多时间尺度分布对比
+# ============================================================
+
+def multi_timeframe_distributions() -> dict:
+    """
+    加载1h/4h/1d/1w数据，计算各时间尺度的对数收益率分布
+
+    Returns
+    -------
+    dict
+        {interval: pd.Series} 各时间尺度的对数收益率
+    """
+    intervals = ['1h', '4h', '1d', '1w']
+    distributions = {}
+    for interval in intervals:
+        try:
+            df = load_klines(interval)
+            ret = log_returns(df['close'])
+            distributions[interval] = ret
+        except FileNotFoundError:
+            print(f"[警告] {interval} 数据文件不存在，跳过")
+    return distributions
+
+
+# ============================================================
+# 4. GARCH(1,1) 建模
+# ============================================================
+
+def fit_garch11(returns: pd.Series) -> dict:
+    """
+    拟合GARCH(1,1)模型
+
+    Parameters
+    ----------
+    returns : pd.Series
+        对数收益率序列（百分比化后传入arch库）
+
+    Returns
+    -------
+    dict
+        包含模型参数、持续性、条件波动率序列的字典
+    """
+    from arch import arch_model
+
+    # arch库推荐使用百分比收益率以改善数值稳定性
+    r_pct = returns.dropna() * 100
+
+    # 拟合GARCH(1,1)，均值模型用常数均值
+    model = arch_model(r_pct, vol='Garch', p=1, q=1, mean='Constant', dist='Normal')
+    result = model.fit(disp='off')
+
+    # 提取参数
+    params = result.params
+    omega = params.get('omega', np.nan)
+    alpha = params.get('alpha[1]', np.nan)
+    beta = params.get('beta[1]', np.nan)
+    persistence = alpha + beta
+
+    # 条件波动率（转回原始比例）
+    cond_vol = result.conditional_volatility / 100
+
+    results = {
+        'model_summary': str(result.summary()),
+        'omega': omega,
+        'alpha': alpha,
+        'beta': beta,
+        'persistence': persistence,
+        'log_likelihood': result.loglikelihood,
+        'aic': result.aic,
+        'bic': result.bic,
+        'conditional_volatility': cond_vol,
+        'result_obj': result,
+    }
+    return results
+
+
+# ============================================================
+# 5. 可视化
+# ============================================================
+
+def plot_histogram_vs_normal(returns: pd.Series, output_dir: Path):
+    """绘制收益率直方图与正态分布对比"""
+    r = returns.dropna().values
+    mu, sigma = r.mean(), r.std()
+
+    fig, ax = plt.subplots(figsize=(12, 6))
+
+    # 直方图
+    n_bins = 150
+    ax.hist(r, bins=n_bins, density=True, alpha=0.65, color='steelblue',
+            edgecolor='white', linewidth=0.3, label='BTC日对数收益率')
+
+    # 正态分布拟合曲线
+    x = np.linspace(r.min(), r.max(), 500)
+    ax.plot(x, stats.norm.pdf(x, mu, sigma), 'r-', linewidth=2,
+            label=f'正态分布 N({mu:.5f}, {sigma:.4f}²)')
+
+    ax.set_xlabel('日对数收益率', fontsize=12)
+    ax.set_ylabel('概率密度', fontsize=12)
+    ax.set_title('BTC日对数收益率分布 vs 正态分布', fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'returns_histogram_vs_normal.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'returns_histogram_vs_normal.png'}")
+
+
+def plot_qq(returns: pd.Series, output_dir: Path):
+    """绘制QQ图"""
+    fig, ax = plt.subplots(figsize=(8, 8))
+    r = returns.dropna().values
+
+    # QQ图
+    (osm, osr), (slope, intercept, _) = stats.probplot(r, dist='norm')
+    ax.scatter(osm, osr, s=5, alpha=0.5, color='steelblue', label='样本分位数')
+    # 理论线
+    x_line = np.array([osm.min(), osm.max()])
+    ax.plot(x_line, slope * x_line + intercept, 'r-', linewidth=2, label='理论正态线')
+
+    ax.set_xlabel('理论分位数（正态）', fontsize=12)
+    ax.set_ylabel('样本分位数', fontsize=12)
+    ax.set_title('BTC日对数收益率 QQ图', fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'returns_qq_plot.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'returns_qq_plot.png'}")
+
+
+def plot_multi_timeframe(distributions: dict, output_dir: Path):
+    """绘制多时间尺度收益率分布对比"""
+    n_plots = len(distributions)
+    if n_plots == 0:
+        print("[警告] 无可用的多时间尺度数据")
+        return
+
+    fig, axes = plt.subplots(2, 2, figsize=(14, 10))
+    axes = axes.flatten()
+
+    interval_names = {
+        '1h': '1小时', '4h': '4小时', '1d': '1天', '1w': '1周'
+    }
+
+    for idx, (interval, ret) in enumerate(distributions.items()):
+        if idx >= 4:
+            break
+        ax = axes[idx]
+        r = ret.dropna().values
+        mu, sigma = r.mean(), r.std()
+
+        ax.hist(r, bins=100, density=True, alpha=0.65, color='steelblue',
+                edgecolor='white', linewidth=0.3)
+
+        x = np.linspace(r.min(), r.max(), 500)
+        ax.plot(x, stats.norm.pdf(x, mu, sigma), 'r-', linewidth=1.5)
+
+        # 统计信息
+        kurt = stats.kurtosis(r)
+        skew = stats.skew(r)
+        label = interval_names.get(interval, interval)
+        ax.set_title(f'{label}收益率 (峰度={kurt:.2f}, 偏度={skew:.3f})', fontsize=11)
+        ax.set_xlabel('对数收益率', fontsize=10)
+        ax.set_ylabel('概率密度', fontsize=10)
+        ax.grid(True, alpha=0.3)
+
+    # 隐藏多余子图
+    for idx in range(len(distributions), 4):
+        axes[idx].set_visible(False)
+
+    fig.suptitle('多时间尺度BTC对数收益率分布', fontsize=14, y=1.02)
+    fig.tight_layout()
+    fig.savefig(output_dir / 'multi_timeframe_distributions.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'multi_timeframe_distributions.png'}")
+
+
+def plot_garch_conditional_vol(garch_results: dict, output_dir: Path):
+    """绘制GARCH(1,1)条件波动率时序图"""
+    cond_vol = garch_results['conditional_volatility']
+
+    fig, ax = plt.subplots(figsize=(14, 5))
+    ax.plot(cond_vol.index, cond_vol.values, linewidth=0.8, color='steelblue')
+    ax.fill_between(cond_vol.index, 0, cond_vol.values, alpha=0.2, color='steelblue')
+
+    ax.set_xlabel('日期', fontsize=12)
+    ax.set_ylabel('条件波动率', fontsize=12)
+    ax.set_title(
+        f'GARCH(1,1) 条件波动率  '
+        f'(α={garch_results["alpha"]:.4f}, β={garch_results["beta"]:.4f}, '
+        f'持续性={garch_results["persistence"]:.4f})',
+        fontsize=13
+    )
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'garch_conditional_volatility.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'garch_conditional_volatility.png'}")
+
+
+# ============================================================
+# 6. 结果打印
+# ============================================================
+
+def print_normality_results(results: dict):
+    """打印正态性检验结果"""
+    print("\n" + "=" * 60)
+    print("正态性检验结果")
+    print("=" * 60)
+
+    print(f"\n[KS检验] Kolmogorov-Smirnov")
+    print(f"  统计量: {results['ks_statistic']:.6f}")
+    print(f"  p值:    {results['ks_pvalue']:.2e}")
+    print(f"  结论:   {'拒绝正态假设' if results['ks_pvalue'] < 0.05 else '不能拒绝正态假设'}")
+
+    print(f"\n[JB检验] Jarque-Bera")
+    print(f"  统计量: {results['jb_statistic']:.4f}")
+    print(f"  p值:    {results['jb_pvalue']:.2e}")
+    print(f"  结论:   {'拒绝正态假设' if results['jb_pvalue'] < 0.05 else '不能拒绝正态假设'}")
+
+    print(f"\n[AD检验] Anderson-Darling")
+    print(f"  统计量: {results['ad_statistic']:.4f}")
+    print("  临界值:")
+    for level, cv in results['ad_critical_values'].items():
+        reject = results['ad_statistic'] > cv
+        print(f"    {level}: {cv:.4f} {'(拒绝)' if reject else '(不拒绝)'}")
+
+
+def print_fat_tail_results(results: dict):
+    """打印厚尾分析结果"""
+    print("\n" + "=" * 60)
+    print("厚尾特征分析")
+    print("=" * 60)
+    print(f"  超额峰度 (excess kurtosis): {results['excess_kurtosis']:.4f}")
+    print(f"    (正态分布=0，值越大尾部越厚)")
+    print(f"  偏度 (skewness):             {results['skewness']:.4f}")
+    print(f"    (正态分布=0，负值表示左偏)")
+
+    print(f"\n  3σ超越比率:")
+    print(f"    实际: {results['exceed_3sigma_actual']:.6f} "
+          f"({results['exceed_3sigma_actual'] * 100:.3f}%)")
+    print(f"    正态: {results['exceed_3sigma_normal']:.6f} "
+          f"({results['exceed_3sigma_normal'] * 100:.3f}%)")
+    print(f"    倍数: {results['exceed_3sigma_ratio']:.2f}x")
+
+    print(f"\n  4σ超越比率:")
+    print(f"    实际: {results['exceed_4sigma_actual']:.6f} "
+          f"({results['exceed_4sigma_actual'] * 100:.4f}%)")
+    print(f"    正态: {results['exceed_4sigma_normal']:.6f} "
+          f"({results['exceed_4sigma_normal'] * 100:.4f}%)")
+    print(f"    倍数: {results['exceed_4sigma_ratio']:.2f}x")
+
+
+def print_garch_results(results: dict):
+    """打印GARCH(1,1)建模结果"""
+    print("\n" + "=" * 60)
+    print("GARCH(1,1) 建模结果")
+    print("=" * 60)
+    print(f"  ω (omega):    {results['omega']:.6f}")
+    print(f"  α (alpha[1]): {results['alpha']:.6f}")
+    print(f"  β (beta[1]):  {results['beta']:.6f}")
+    print(f"  持续性 (α+β): {results['persistence']:.6f}")
+    print(f"    {'高持续性（接近1）→波动率冲击衰减缓慢' if results['persistence'] > 0.9 else '中等持续性'}")
+    print(f"  对数似然值:    {results['log_likelihood']:.4f}")
+    print(f"  AIC:           {results['aic']:.4f}")
+    print(f"  BIC:           {results['bic']:.4f}")
+
+
+# ============================================================
+# 7. 主入口
+# ============================================================
+
+def run_returns_analysis(df: pd.DataFrame, output_dir: str = "output/returns"):
+    """
+    收益率分布分析主函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线K线数据（含'close'列，DatetimeIndex索引）
+    output_dir : str
+        图表输出目录
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("BTC 收益率分布分析与 GARCH 建模")
+    print("=" * 60)
+    print(f"数据范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"样本数量: {len(df)}")
+
+    # 计算日对数收益率
+    daily_returns = log_returns(df['close'])
+    print(f"日对数收益率样本数: {len(daily_returns)}")
+
+    # --- 正态性检验 ---
+    print("\n>>> 执行正态性检验...")
+    norm_results = normality_tests(daily_returns)
+    print_normality_results(norm_results)
+
+    # --- 厚尾分析 ---
+    print("\n>>> 执行厚尾分析...")
+    tail_results = fat_tail_analysis(daily_returns)
+    print_fat_tail_results(tail_results)
+
+    # --- 多时间尺度分布 ---
+    print("\n>>> 加载多时间尺度数据...")
+    distributions = multi_timeframe_distributions()
+    # 打印各尺度统计
+    print("\n多时间尺度对数收益率统计:")
+    print(f"  {'尺度':<8} {'样本数':>8} {'均值':>12} {'标准差':>12} {'峰度':>10} {'偏度':>10}")
+    print("  " + "-" * 62)
+    for interval, ret in distributions.items():
+        r = ret.dropna().values
+        print(f"  {interval:<8} {len(r):>8d} {r.mean():>12.6f} {r.std():>12.6f} "
+              f"{stats.kurtosis(r):>10.4f} {stats.skew(r):>10.4f}")
+
+    # --- GARCH(1,1) 建模 ---
+    print("\n>>> 拟合 GARCH(1,1) 模型...")
+    garch_results = fit_garch11(daily_returns)
+    print_garch_results(garch_results)
+
+    # --- 生成可视化 ---
+    print("\n>>> 生成可视化图表...")
+
+    # 设置中文字体（兼容多系统）
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    plot_histogram_vs_normal(daily_returns, output_dir)
+    plot_qq(daily_returns, output_dir)
+    plot_multi_timeframe(distributions, output_dir)
+    plot_garch_conditional_vol(garch_results, output_dir)
+
+    print("\n" + "=" * 60)
+    print("收益率分布分析完成！")
+    print(f"图表已保存至: {output_dir.resolve()}")
+    print("=" * 60)
+
+    # 返回所有结果供后续使用
+    return {
+        'normality': norm_results,
+        'fat_tail': tail_results,
+        'multi_timeframe': distributions,
+        'garch': garch_results,
+    }
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == '__main__':
+    from src.data_loader import load_daily
+    df = load_daily()
+    run_returns_analysis(df)
diff --git a/src/time_series.py b/src/time_series.py
new file mode 100644
index 0000000..3f20e8d
--- /dev/null
+++ b/src/time_series.py
@@ -0,0 +1,804 @@
+"""时间序列预测模块 - ARIMA、Prophet、LSTM/GRU
+
+对BTC日线数据进行多模型预测与对比评估。
+每个模型独立运行，单个模型失败不影响其他模型。
+"""
+
+import warnings
+import numpy as np
+import pandas as pd
+import matplotlib
+matplotlib.use('Agg')
+import matplotlib.pyplot as plt
+from pathlib import Path
+from typing import Optional, Tuple, Dict, List
+from scipy import stats
+
+from src.data_loader import split_data
+
+
+# ============================================================
+# 评估指标
+# ============================================================
+
+def _direction_accuracy(y_true: np.ndarray, y_pred: np.ndarray) -> float:
+    """方向准确率：预测涨跌方向正确的比例"""
+    if len(y_true) < 2:
+        return np.nan
+    true_dir = np.sign(y_true)
+    pred_dir = np.sign(y_pred)
+    return np.mean(true_dir == pred_dir)
+
+
+def _rmse(y_true: np.ndarray, y_pred: np.ndarray) -> float:
+    """均方根误差"""
+    return np.sqrt(np.mean((y_true - y_pred) ** 2))
+
+
+def _diebold_mariano_test(e1: np.ndarray, e2: np.ndarray, h: int = 1) -> Tuple[float, float]:
+    """
+    Diebold-Mariano检验：比较两个预测的损失差异是否显著
+
+    H0: 两个模型预测精度无差异
+    e1, e2: 两个模型的预测误差序列
+
+    Returns
+    -------
+    dm_stat : DM统计量
+    p_value : 双侧p值
+    """
+    d = e1 ** 2 - e2 ** 2  # 平方损失差
+    n = len(d)
+    if n < 10:
+        return np.nan, np.nan
+
+    mean_d = np.mean(d)
+
+    # Newey-West方差估计（考虑自相关）
+    gamma_0 = np.var(d, ddof=1)
+    gamma_sum = 0
+    for k in range(1, h):
+        gamma_k = np.cov(d[k:], d[:-k])[0, 1] if len(d[k:]) > 1 else 0
+        gamma_sum += 2 * gamma_k
+
+    var_d = (gamma_0 + gamma_sum) / n
+    if var_d <= 0:
+        return np.nan, np.nan
+
+    dm_stat = mean_d / np.sqrt(var_d)
+    p_value = 2 * stats.norm.sf(np.abs(dm_stat))
+    return dm_stat, p_value
+
+
+def _evaluate_model(name: str, y_true: np.ndarray, y_pred: np.ndarray,
+                    rw_errors: np.ndarray) -> Dict:
+    """统一评估单个模型"""
+    errors = y_true - y_pred
+    rmse_val = _rmse(y_true, y_pred)
+    rw_rmse = _rmse(y_true, np.zeros_like(y_true))  # Random Walk RMSE
+    rmse_ratio = rmse_val / rw_rmse if rw_rmse > 0 else np.nan
+    dir_acc = _direction_accuracy(y_true, y_pred)
+
+    # DM检验 vs Random Walk
+    dm_stat, dm_pval = _diebold_mariano_test(errors, rw_errors)
+
+    result = {
+        "name": name,
+        "rmse": rmse_val,
+        "rmse_ratio_vs_rw": rmse_ratio,
+        "direction_accuracy": dir_acc,
+        "dm_stat_vs_rw": dm_stat,
+        "dm_pval_vs_rw": dm_pval,
+        "predictions": y_pred,
+        "errors": errors,
+    }
+    return result
+
+
+# ============================================================
+# 基准模型
+# ============================================================
+
+def _baseline_random_walk(y_true: np.ndarray) -> np.ndarray:
+    """随机游走基准：预测收益率=0"""
+    return np.zeros_like(y_true)
+
+
+def _baseline_historical_mean(train_returns: np.ndarray, n_pred: int) -> np.ndarray:
+    """历史均值基准：预测收益率=训练集均值"""
+    return np.full(n_pred, np.mean(train_returns))
+
+
+# ============================================================
+# ARIMA 模型
+# ============================================================
+
+def _run_arima(train_returns: pd.Series, val_returns: pd.Series) -> Dict:
+    """
+    ARIMA模型：使用auto_arima自动选参 + walk-forward预测
+
+    Returns
+    -------
+    dict : 包含预测结果和诊断信息
+    """
+    try:
+        import pmdarima as pm
+        from statsmodels.stats.diagnostic import acorr_ljungbox
+    except ImportError:
+        print("  [ARIMA] 跳过 - pmdarima 未安装。pip install pmdarima")
+        return None
+
+    print("\n" + "=" * 60)
+    print("ARIMA 模型")
+    print("=" * 60)
+
+    # 自动选择ARIMA参数
+    print("  [1/3] auto_arima 参数搜索...")
+    model = pm.auto_arima(
+        train_returns.values,
+        start_p=0, max_p=5,
+        start_q=0, max_q=5,
+        d=0,  # 对数收益率已经是平稳的
+        seasonal=False,
+        stepwise=True,
+        suppress_warnings=True,
+        error_action='ignore',
+        trace=False,
+        information_criterion='aic',
+    )
+    print(f"  最优模型: ARIMA{model.order}")
+    print(f"  AIC: {model.aic():.2f}")
+
+    # Ljung-Box 残差诊断
+    print("  [2/3] Ljung-Box 残差白噪声检验...")
+    residuals = model.resid()
+    lb_result = acorr_ljungbox(residuals, lags=[10, 20], return_df=True)
+    print(f"  Ljung-Box 检验 (lag=10): 统计量={lb_result.iloc[0]['lb_stat']:.2f}, "
+          f"p值={lb_result.iloc[0]['lb_pvalue']:.4f}")
+    print(f"  Ljung-Box 检验 (lag=20): 统计量={lb_result.iloc[1]['lb_stat']:.2f}, "
+          f"p值={lb_result.iloc[1]['lb_pvalue']:.4f}")
+
+    if lb_result.iloc[0]['lb_pvalue'] > 0.05:
+        print("  残差通过白噪声检验 (p>0.05)，模型拟合充分")
+    else:
+        print("  残差未通过白噪声检验 (p<=0.05)，可能存在未捕获的自相关结构")
+
+    # Walk-forward 预测
+    print("  [3/3] Walk-forward 验证集预测...")
+    val_values = val_returns.values
+    n_val = len(val_values)
+    predictions = np.zeros(n_val)
+
+    # 使用滚动窗口预测
+    history = list(train_returns.values)
+    for i in range(n_val):
+        # 一步预测
+        fc = model.predict(n_periods=1)
+        predictions[i] = fc[0]
+        # 更新模型（添加真实观测值）
+        model.update(val_values[i:i+1])
+        if (i + 1) % 100 == 0:
+            print(f"    进度: {i+1}/{n_val}")
+
+    print(f"  Walk-forward 预测完成，共{n_val}步")
+
+    return {
+        "predictions": predictions,
+        "order": model.order,
+        "aic": model.aic(),
+        "ljung_box": lb_result,
+    }
+
+
+# ============================================================
+# Prophet 模型
+# ============================================================
+
+def _run_prophet(train_df: pd.DataFrame, val_df: pd.DataFrame) -> Dict:
+    """
+    Prophet模型：基于日收盘价的时间序列预测
+
+    Returns
+    -------
+    dict : 包含预测结果
+    """
+    try:
+        from prophet import Prophet
+    except ImportError:
+        print("  [Prophet] 跳过 - prophet 未安装。pip install prophet")
+        return None
+
+    print("\n" + "=" * 60)
+    print("Prophet 模型")
+    print("=" * 60)
+
+    # 准备Prophet格式数据
+    prophet_train = pd.DataFrame({
+        'ds': train_df.index,
+        'y': train_df['close'].values,
+    })
+
+    print("  [1/3] 构建Prophet模型并添加自定义季节性...")
+
+    model = Prophet(
+        daily_seasonality=False,
+        weekly_seasonality=False,
+        yearly_seasonality=False,
+        changepoint_prior_scale=0.05,
+    )
+
+    # 添加自定义季节性
+    model.add_seasonality(name='weekly', period=7, fourier_order=3)
+    model.add_seasonality(name='monthly', period=30, fourier_order=5)
+    model.add_seasonality(name='yearly', period=365, fourier_order=10)
+    model.add_seasonality(name='halving_cycle', period=1458, fourier_order=5)
+
+    print("  [2/3] 拟合模型...")
+    with warnings.catch_warnings():
+        warnings.simplefilter("ignore")
+        model.fit(prophet_train)
+
+    # 预测验证期
+    print("  [3/3] 预测验证期...")
+    future_dates = pd.DataFrame({'ds': val_df.index})
+    forecast = model.predict(future_dates)
+
+    # 转换为对数收益率预测（与其他模型对齐）
+    pred_close = forecast['yhat'].values
+    # 用前一天的真实收盘价计算预测收益率
+    # 第一天用训练集最后一天的价格
+    prev_close = np.concatenate([[train_df['close'].iloc[-1]], val_df['close'].values[:-1]])
+    pred_returns = np.log(pred_close / prev_close)
+
+    print(f"  预测完成，验证期: {val_df.index[0]} ~ {val_df.index[-1]}")
+    print(f"  预测价格范围: {pred_close.min():.0f} ~ {pred_close.max():.0f}")
+
+    return {
+        "predictions_return": pred_returns,
+        "predictions_close": pred_close,
+        "forecast": forecast,
+        "model": model,
+    }
+
+
+# ============================================================
+# LSTM/GRU 模型 (PyTorch)
+# ============================================================
+
+def _run_lstm(train_df: pd.DataFrame, val_df: pd.DataFrame,
+              lookback: int = 60, hidden_size: int = 128,
+              num_layers: int = 2, max_epochs: int = 100,
+              patience: int = 10, batch_size: int = 64) -> Dict:
+    """
+    LSTM/GRU 模型：基于PyTorch的深度学习时间序列预测
+
+    Returns
+    -------
+    dict : 包含预测结果和训练历史
+    """
+    try:
+        import torch
+        import torch.nn as nn
+        from torch.utils.data import DataLoader, TensorDataset
+    except ImportError:
+        print("  [LSTM] 跳过 - PyTorch 未安装。pip install torch")
+        return None
+
+    print("\n" + "=" * 60)
+    print("LSTM 模型 (PyTorch)")
+    print("=" * 60)
+
+    device = torch.device('cuda' if torch.cuda.is_available() else
+                          'mps' if torch.backends.mps.is_available() else 'cpu')
+    print(f"  设备: {device}")
+
+    # ---- 数据准备 ----
+    # 使用收盘价的对数收益率作为目标
+    feature_cols = ['log_return', 'volume_ratio', 'taker_buy_ratio']
+    available_cols = [c for c in feature_cols if c in train_df.columns]
+
+    if not available_cols:
+        # 降级到只用收盘价
+        print("  [警告] 特征列不可用，仅使用收盘价收益率")
+        available_cols = ['log_return']
+
+    print(f"  特征: {available_cols}")
+
+    # 合并训练和验证数据以创建连续序列
+    all_data = pd.concat([train_df, val_df])
+    features = all_data[available_cols].values
+    target = all_data['log_return'].values
+
+    # 处理NaN
+    mask = ~np.isnan(features).any(axis=1) & ~np.isnan(target)
+    features_clean = features[mask]
+    target_clean = target[mask]
+
+    # 特征标准化（基于训练集统计量）
+    train_len = mask[:len(train_df)].sum()
+    feat_mean = features_clean[:train_len].mean(axis=0)
+    feat_std = features_clean[:train_len].std(axis=0) + 1e-10
+    features_norm = (features_clean - feat_mean) / feat_std
+
+    target_mean = target_clean[:train_len].mean()
+    target_std = target_clean[:train_len].std() + 1e-10
+    target_norm = (target_clean - target_mean) / target_std
+
+    # 创建序列样本
+    def create_sequences(feat, tgt, seq_len):
+        X, y = [], []
+        for i in range(seq_len, len(feat)):
+            X.append(feat[i - seq_len:i])
+            y.append(tgt[i])
+        return np.array(X), np.array(y)
+
+    X_all, y_all = create_sequences(features_norm, target_norm, lookback)
+
+    # 划分训练和验证（根据原始训练集长度调整）
+    train_samples = max(0, train_len - lookback)
+    X_train = X_all[:train_samples]
+    y_train = y_all[:train_samples]
+    X_val = X_all[train_samples:]
+    y_val = y_all[train_samples:]
+
+    if len(X_train) == 0 or len(X_val) == 0:
+        print("  [LSTM] 跳过 - 数据不足以创建训练/验证序列")
+        return None
+
+    print(f"  训练样本: {len(X_train)}, 验证样本: {len(X_val)}")
+    print(f"  回看窗口: {lookback}, 隐藏维度: {hidden_size}, 层数: {num_layers}")
+
+    # 转换为Tensor
+    X_train_t = torch.FloatTensor(X_train).to(device)
+    y_train_t = torch.FloatTensor(y_train).to(device)
+    X_val_t = torch.FloatTensor(X_val).to(device)
+    y_val_t = torch.FloatTensor(y_val).to(device)
+
+    train_dataset = TensorDataset(X_train_t, y_train_t)
+    train_loader = DataLoader(train_dataset, batch_size=batch_size, shuffle=True)
+
+    # ---- 模型定义 ----
+    class LSTMModel(nn.Module):
+        def __init__(self, input_size, hidden_size, num_layers, dropout=0.2):
+            super().__init__()
+            self.lstm = nn.LSTM(
+                input_size=input_size,
+                hidden_size=hidden_size,
+                num_layers=num_layers,
+                batch_first=True,
+                dropout=dropout if num_layers > 1 else 0,
+            )
+            self.fc = nn.Sequential(
+                nn.Linear(hidden_size, 64),
+                nn.ReLU(),
+                nn.Dropout(dropout),
+                nn.Linear(64, 1),
+            )
+
+        def forward(self, x):
+            lstm_out, _ = self.lstm(x)
+            # 取最后一个时间步的输出
+            last_out = lstm_out[:, -1, :]
+            return self.fc(last_out).squeeze(-1)
+
+    input_size = len(available_cols)
+    model = LSTMModel(input_size, hidden_size, num_layers).to(device)
+
+    criterion = nn.MSELoss()
+    optimizer = torch.optim.AdamW(model.parameters(), lr=1e-3, weight_decay=1e-4)
+    scheduler = torch.optim.lr_scheduler.ReduceLROnPlateau(
+        optimizer, mode='min', factor=0.5, patience=5, verbose=False
+    )
+
+    # ---- 训练 ----
+    print(f"  开始训练 (最多{max_epochs}轮, 早停耐心={patience})...")
+    best_val_loss = np.inf
+    patience_counter = 0
+    train_losses = []
+    val_losses = []
+
+    for epoch in range(max_epochs):
+        # 训练
+        model.train()
+        epoch_loss = 0
+        n_batches = 0
+        for batch_X, batch_y in train_loader:
+            optimizer.zero_grad()
+            pred = model(batch_X)
+            loss = criterion(pred, batch_y)
+            loss.backward()
+            torch.nn.utils.clip_grad_norm_(model.parameters(), max_norm=1.0)
+            optimizer.step()
+            epoch_loss += loss.item()
+            n_batches += 1
+
+        avg_train_loss = epoch_loss / max(n_batches, 1)
+        train_losses.append(avg_train_loss)
+
+        # 验证
+        model.eval()
+        with torch.no_grad():
+            val_pred = model(X_val_t)
+            val_loss = criterion(val_pred, y_val_t).item()
+        val_losses.append(val_loss)
+
+        scheduler.step(val_loss)
+
+        if (epoch + 1) % 10 == 0:
+            lr = optimizer.param_groups[0]['lr']
+            print(f"    Epoch {epoch+1}/{max_epochs}: "
+                  f"train_loss={avg_train_loss:.6f}, val_loss={val_loss:.6f}, lr={lr:.1e}")
+
+        # 早停
+        if val_loss < best_val_loss:
+            best_val_loss = val_loss
+            patience_counter = 0
+            best_state = {k: v.cpu().clone() for k, v in model.state_dict().items()}
+        else:
+            patience_counter += 1
+            if patience_counter >= patience:
+                print(f"    早停触发 (epoch {epoch+1})")
+                break
+
+    # 加载最佳模型
+    model.load_state_dict(best_state)
+    model.eval()
+
+    # ---- 预测 ----
+    with torch.no_grad():
+        val_pred_norm = model(X_val_t).cpu().numpy()
+
+    # 逆标准化
+    val_pred_returns = val_pred_norm * target_std + target_mean
+    val_true_returns = y_val * target_std + target_mean
+
+    print(f"  训练完成，最佳验证损失: {best_val_loss:.6f}")
+
+    return {
+        "predictions_return": val_pred_returns,
+        "true_returns": val_true_returns,
+        "train_losses": train_losses,
+        "val_losses": val_losses,
+        "model": model,
+        "device": str(device),
+    }
+
+
+# ============================================================
+# 可视化
+# ============================================================
+
+def _plot_predictions(val_dates, y_true, model_preds: Dict[str, np.ndarray],
+                      output_dir: Path):
+    """各模型实际 vs 预测对比图"""
+    n_models = len(model_preds)
+    fig, axes = plt.subplots(n_models, 1, figsize=(16, 4 * n_models), sharex=True)
+    if n_models == 1:
+        axes = [axes]
+
+    for i, (name, y_pred) in enumerate(model_preds.items()):
+        ax = axes[i]
+        # 对齐长度（LSTM可能因lookback导致长度不同）
+        n = min(len(y_true), len(y_pred))
+        dates = val_dates[:n] if len(val_dates) >= n else val_dates
+
+        ax.plot(dates, y_true[:n], 'b-', alpha=0.6, linewidth=0.8, label='实际收益率')
+        ax.plot(dates, y_pred[:n], 'r-', alpha=0.6, linewidth=0.8, label='预测收益率')
+        ax.set_title(f"{name} - 实际 vs 预测", fontsize=13)
+        ax.set_ylabel("对数收益率", fontsize=11)
+        ax.legend(fontsize=9)
+        ax.grid(True, alpha=0.3)
+        ax.axhline(y=0, color='gray', linestyle='--', alpha=0.5)
+
+    axes[-1].set_xlabel("日期", fontsize=11)
+    plt.tight_layout()
+    fig.savefig(output_dir / "ts_predictions_comparison.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] ts_predictions_comparison.png")
+
+
+def _plot_direction_accuracy(metrics: Dict[str, Dict], output_dir: Path):
+    """方向准确率对比柱状图"""
+    names = list(metrics.keys())
+    accs = [metrics[n]["direction_accuracy"] * 100 for n in names]
+
+    fig, ax = plt.subplots(figsize=(10, 6))
+    colors = plt.cm.Set2(np.linspace(0, 1, len(names)))
+    bars = ax.bar(names, accs, color=colors, edgecolor='gray', linewidth=0.5)
+
+    # 标注数值
+    for bar, acc in zip(bars, accs):
+        ax.text(bar.get_x() + bar.get_width() / 2, bar.get_height() + 0.5,
+                f"{acc:.1f}%", ha='center', va='bottom', fontsize=11, fontweight='bold')
+
+    ax.axhline(y=50, color='red', linestyle='--', alpha=0.7, label='随机基准 (50%)')
+    ax.set_ylabel("方向准确率 (%)", fontsize=12)
+    ax.set_title("各模型方向预测准确率对比", fontsize=14)
+    ax.legend(fontsize=10)
+    ax.grid(True, alpha=0.3, axis='y')
+    ax.set_ylim(0, max(accs) * 1.2 if accs else 100)
+
+    fig.savefig(output_dir / "ts_direction_accuracy.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] ts_direction_accuracy.png")
+
+
+def _plot_cumulative_error(val_dates, metrics: Dict[str, Dict], output_dir: Path):
+    """累计误差对比图"""
+    fig, ax = plt.subplots(figsize=(16, 7))
+
+    for name, m in metrics.items():
+        errors = m.get("errors")
+        if errors is None:
+            continue
+        n = len(errors)
+        dates = val_dates[:n]
+        cum_sq_err = np.cumsum(errors ** 2)
+        ax.plot(dates, cum_sq_err, linewidth=1.2, label=f"{name}")
+
+    ax.set_xlabel("日期", fontsize=12)
+    ax.set_ylabel("累计平方误差", fontsize=12)
+    ax.set_title("各模型累计预测误差对比", fontsize=14)
+    ax.legend(fontsize=10)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / "ts_cumulative_error.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] ts_cumulative_error.png")
+
+
+def _plot_lstm_training(train_losses: List, val_losses: List, output_dir: Path):
+    """LSTM训练损失曲线"""
+    fig, ax = plt.subplots(figsize=(10, 6))
+    ax.plot(train_losses, 'b-', label='训练损失', linewidth=1.5)
+    ax.plot(val_losses, 'r-', label='验证损失', linewidth=1.5)
+    ax.set_xlabel("Epoch", fontsize=12)
+    ax.set_ylabel("MSE Loss", fontsize=12)
+    ax.set_title("LSTM 训练过程", fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / "ts_lstm_training.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] ts_lstm_training.png")
+
+
+def _plot_prophet_components(prophet_result: Dict, output_dir: Path):
+    """Prophet预测 - 实际价格 vs 预测价格"""
+    try:
+        from prophet import Prophet
+    except ImportError:
+        return
+
+    forecast = prophet_result.get("forecast")
+    if forecast is None:
+        return
+
+    fig, ax = plt.subplots(figsize=(16, 7))
+    ax.plot(forecast['ds'], forecast['yhat'], 'r-', linewidth=1.2, label='Prophet预测')
+    ax.fill_between(forecast['ds'], forecast['yhat_lower'], forecast['yhat_upper'],
+                    alpha=0.15, color='red', label='置信区间')
+    ax.set_xlabel("日期", fontsize=12)
+    ax.set_ylabel("BTC 价格 (USDT)", fontsize=12)
+    ax.set_title("Prophet 价格预测（验证期）", fontsize=14)
+    ax.legend(fontsize=10)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / "ts_prophet_forecast.png", dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [保存] ts_prophet_forecast.png")
+
+
+# ============================================================
+# 结果打印
+# ============================================================
+
+def _print_metrics_table(all_metrics: Dict[str, Dict]):
+    """打印所有模型的评估指标表"""
+    print("\n" + "=" * 80)
+    print("  模型评估汇总")
+    print("=" * 80)
+    print(f"  {'模型':<20s} {'RMSE':>10s} {'RMSE/RW':>10s} {'方向准确率':>10s} "
+          f"{'DM统计量':>10s} {'DM p值':>10s}")
+    print("-" * 80)
+
+    for name, m in all_metrics.items():
+        rmse_str = f"{m['rmse']:.6f}"
+        ratio_str = f"{m['rmse_ratio_vs_rw']:.4f}" if not np.isnan(m['rmse_ratio_vs_rw']) else "N/A"
+        dir_str = f"{m['direction_accuracy']*100:.1f}%"
+        dm_str = f"{m['dm_stat_vs_rw']:.3f}" if not np.isnan(m['dm_stat_vs_rw']) else "N/A"
+        pv_str = f"{m['dm_pval_vs_rw']:.4f}" if not np.isnan(m['dm_pval_vs_rw']) else "N/A"
+        print(f"  {name:<20s} {rmse_str:>10s} {ratio_str:>10s} {dir_str:>10s} "
+              f"{dm_str:>10s} {pv_str:>10s}")
+
+    print("-" * 80)
+
+    # 解读
+    print("\n  [解读]")
+    print("  - RMSE/RW < 1.0 表示优于随机游走基准")
+    print("  - 方向准确率 > 50% 表示有一定方向预测能力")
+    print("  - DM检验 p值 < 0.05 表示与随机游走有显著差异")
+
+
+# ============================================================
+# 主入口
+# ============================================================
+
+def run_time_series_analysis(df: pd.DataFrame, output_dir: "str | Path" = "output/time_series") -> Dict:
+    """
+    时间序列预测分析 - 主入口
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        已经通过 add_derived_features() 添加了衍生特征的日线数据
+    output_dir : str or Path
+        图表输出目录
+
+    Returns
+    -------
+    results : dict
+        包含所有模型的预测结果和评估指标
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    # 设置中文字体（macOS）
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    print("=" * 60)
+    print("  BTC 时间序列预测分析")
+    print("=" * 60)
+
+    # ---- 数据划分 ----
+    train_df, val_df, test_df = split_data(df)
+    print(f"\n  训练集: {train_df.index[0]} ~ {train_df.index[-1]} ({len(train_df)}天)")
+    print(f"  验证集: {val_df.index[0]} ~ {val_df.index[-1]} ({len(val_df)}天)")
+    print(f"  测试集: {test_df.index[0]} ~ {test_df.index[-1]} ({len(test_df)}天)")
+
+    # 对数收益率序列
+    train_returns = train_df['log_return'].dropna()
+    val_returns = val_df['log_return'].dropna()
+    val_dates = val_returns.index
+    y_true = val_returns.values
+
+    # ---- 基准模型 ----
+    print("\n" + "=" * 60)
+    print("基准模型")
+    print("=" * 60)
+
+    # Random Walk基准
+    rw_pred = _baseline_random_walk(y_true)
+    rw_errors = y_true - rw_pred
+    print(f"  Random Walk (预测收益=0): RMSE = {_rmse(y_true, rw_pred):.6f}")
+
+    # 历史均值基准
+    hm_pred = _baseline_historical_mean(train_returns.values, len(y_true))
+    print(f"  Historical Mean (收益={train_returns.mean():.6f}): RMSE = {_rmse(y_true, hm_pred):.6f}")
+
+    # 存储所有模型结果
+    all_metrics = {}
+    model_preds = {}
+
+    # 评估基准模型
+    all_metrics["Random Walk"] = _evaluate_model("Random Walk", y_true, rw_pred, rw_errors)
+    model_preds["Random Walk"] = rw_pred
+
+    all_metrics["Historical Mean"] = _evaluate_model("Historical Mean", y_true, hm_pred, rw_errors)
+    model_preds["Historical Mean"] = hm_pred
+
+    # ---- ARIMA ----
+    try:
+        arima_result = _run_arima(train_returns, val_returns)
+        if arima_result is not None:
+            arima_pred = arima_result["predictions"]
+            all_metrics["ARIMA"] = _evaluate_model("ARIMA", y_true, arima_pred, rw_errors)
+            model_preds["ARIMA"] = arima_pred
+            print(f"\n  ARIMA 验证集: RMSE={all_metrics['ARIMA']['rmse']:.6f}, "
+                  f"方向准确率={all_metrics['ARIMA']['direction_accuracy']*100:.1f}%")
+    except Exception as e:
+        print(f"\n  [ARIMA] 运行失败: {e}")
+
+    # ---- Prophet ----
+    try:
+        prophet_result = _run_prophet(train_df, val_df)
+        if prophet_result is not None:
+            prophet_pred = prophet_result["predictions_return"]
+            # 对齐长度
+            n = min(len(y_true), len(prophet_pred))
+            all_metrics["Prophet"] = _evaluate_model(
+                "Prophet", y_true[:n], prophet_pred[:n], rw_errors[:n]
+            )
+            model_preds["Prophet"] = prophet_pred[:n]
+            print(f"\n  Prophet 验证集: RMSE={all_metrics['Prophet']['rmse']:.6f}, "
+                  f"方向准确率={all_metrics['Prophet']['direction_accuracy']*100:.1f}%")
+
+            # Prophet专属图表
+            _plot_prophet_components(prophet_result, output_dir)
+    except Exception as e:
+        print(f"\n  [Prophet] 运行失败: {e}")
+        prophet_result = None
+
+    # ---- LSTM ----
+    try:
+        lstm_result = _run_lstm(train_df, val_df)
+        if lstm_result is not None:
+            lstm_pred = lstm_result["predictions_return"]
+            lstm_true = lstm_result["true_returns"]
+            n_lstm = len(lstm_pred)
+
+            # LSTM因lookback导致样本数不同，使用其自身的true_returns评估
+            lstm_rw_errors = lstm_true - np.zeros_like(lstm_true)
+            all_metrics["LSTM"] = _evaluate_model(
+                "LSTM", lstm_true, lstm_pred, lstm_rw_errors
+            )
+            model_preds["LSTM"] = lstm_pred
+            print(f"\n  LSTM 验证集: RMSE={all_metrics['LSTM']['rmse']:.6f}, "
+                  f"方向准确率={all_metrics['LSTM']['direction_accuracy']*100:.1f}%")
+
+            # LSTM训练曲线
+            _plot_lstm_training(lstm_result["train_losses"],
+                                lstm_result["val_losses"], output_dir)
+    except Exception as e:
+        print(f"\n  [LSTM] 运行失败: {e}")
+        lstm_result = None
+
+    # ---- 评估汇总 ----
+    _print_metrics_table(all_metrics)
+
+    # ---- 可视化 ----
+    print("\n[可视化] 生成分析图表...")
+
+    # 预测对比图（仅使用与y_true等长的预测，排除LSTM）
+    aligned_preds = {k: v for k, v in model_preds.items()
+                     if k != "LSTM" and len(v) == len(y_true)}
+    if aligned_preds:
+        _plot_predictions(val_dates, y_true, aligned_preds, output_dir)
+
+    # LSTM单独画图（长度不同）
+    if "LSTM" in model_preds and lstm_result is not None:
+        lstm_dates = val_dates[-len(lstm_result["predictions_return"]):]
+        _plot_predictions(lstm_dates, lstm_result["true_returns"],
+                          {"LSTM": lstm_result["predictions_return"]}, output_dir)
+
+    # 方向准确率对比
+    _plot_direction_accuracy(all_metrics, output_dir)
+
+    # 累计误差对比
+    _plot_cumulative_error(val_dates, all_metrics, output_dir)
+
+    # ---- 汇总 ----
+    results = {
+        "metrics": all_metrics,
+        "model_predictions": model_preds,
+        "val_dates": val_dates,
+        "y_true": y_true,
+    }
+
+    if 'arima_result' in dir() and arima_result is not None:
+        results["arima"] = arima_result
+    if prophet_result is not None:
+        results["prophet"] = prophet_result
+    if lstm_result is not None:
+        results["lstm"] = lstm_result
+
+    print("\n" + "=" * 60)
+    print("  时间序列预测分析完成！")
+    print("=" * 60)
+
+    return results
+
+
+# ============================================================
+# 命令行入口
+# ============================================================
+
+if __name__ == "__main__":
+    from data_loader import load_daily
+    from preprocessing import add_derived_features
+
+    df = load_daily()
+    df = add_derived_features(df)
+
+    results = run_time_series_analysis(df, output_dir="output/time_series")
diff --git a/src/visualization.py b/src/visualization.py
new file mode 100644
index 0000000..9dd9f43
--- /dev/null
+++ b/src/visualization.py
@@ -0,0 +1,317 @@
+"""统一可视化工具模块
+
+提供跨模块共用的绑图辅助函数与综合结果仪表盘。
+"""
+
+import numpy as np
+import pandas as pd
+import matplotlib
+matplotlib.use('Agg')
+import matplotlib.pyplot as plt
+import matplotlib.gridspec as gridspec
+from pathlib import Path
+from typing import Dict, List, Optional, Any
+import json
+import warnings
+
+# ── 全局样式 ──────────────────────────────────────────────
+
+STYLE_CONFIG = {
+    "figure.facecolor": "white",
+    "axes.facecolor": "#fafafa",
+    "axes.grid": True,
+    "grid.alpha": 0.3,
+    "grid.linestyle": "--",
+    "font.size": 10,
+    "axes.titlesize": 13,
+    "axes.labelsize": 11,
+    "xtick.labelsize": 9,
+    "ytick.labelsize": 9,
+    "legend.fontsize": 9,
+    "figure.dpi": 120,
+    "savefig.dpi": 150,
+    "savefig.bbox": "tight",
+}
+
+COLOR_PALETTE = {
+    "primary":   "#2563eb",
+    "secondary": "#7c3aed",
+    "success":   "#059669",
+    "danger":    "#dc2626",
+    "warning":   "#d97706",
+    "info":      "#0891b2",
+    "muted":     "#6b7280",
+    "bg_light":  "#f8fafc",
+}
+
+EVIDENCE_COLORS = {
+    "strong":  "#059669",   # 绿
+    "moderate": "#d97706",  # 橙
+    "weak":    "#dc2626",   # 红
+    "none":    "#6b7280",   # 灰
+}
+
+
+def apply_style():
+    """应用全局matplotlib样式"""
+    plt.rcParams.update(STYLE_CONFIG)
+    try:
+        plt.rcParams["font.sans-serif"] = ["Arial Unicode MS", "SimHei", "DejaVu Sans"]
+        plt.rcParams["axes.unicode_minus"] = False
+    except Exception:
+        pass
+
+
+def ensure_dir(path):
+    """确保目录存在"""
+    Path(path).mkdir(parents=True, exist_ok=True)
+    return Path(path)
+
+
+# ── 证据评分框架 ───────────────────────────────────────────
+
+EVIDENCE_CRITERIA = """
+"真正有规律" 判定标准（必须同时满足）：
+  1. FDR校正后 p < 0.05
+  2. 排列检验 p < 0.01（如适用）
+  3. 测试集上效果方向一致且显著
+  4. >80% bootstrap子样本中成立（如适用）
+  5. Cohen's d > 0.2 或经济意义显著
+  6. 有合理的经济/市场直觉解释
+"""
+
+
+def score_evidence(result: Dict) -> Dict:
+    """
+    对单个分析模块的结果打分
+
+    Parameters
+    ----------
+    result : dict
+        模块返回的结果字典，应包含 'findings' 列表
+
+    Returns
+    -------
+    dict
+        包含 score, level, summary
+    """
+    findings = result.get("findings", [])
+    if not findings:
+        return {"score": 0, "level": "none", "summary": "无可评估的发现",
+                "n_findings": 0, "total_score": 0, "details": []}
+
+    total_score = 0
+    details = []
+
+    for f in findings:
+        s = 0
+        name = f.get("name", "未命名")
+        p_value = f.get("p_value")
+        effect_size = f.get("effect_size")
+        significant = f.get("significant", False)
+        description = f.get("description", "")
+
+        if significant:
+            s += 2
+        if p_value is not None and p_value < 0.01:
+            s += 1
+        if effect_size is not None and abs(effect_size) > 0.2:
+            s += 1
+        if f.get("test_set_consistent", False):
+            s += 2
+        if f.get("bootstrap_robust", False):
+            s += 1
+
+        total_score += s
+        details.append({"name": name, "score": s, "description": description})
+
+    avg = total_score / len(findings) if findings else 0
+
+    if avg >= 5:
+        level = "strong"
+    elif avg >= 3:
+        level = "moderate"
+    elif avg >= 1:
+        level = "weak"
+    else:
+        level = "none"
+
+    return {
+        "score": round(avg, 2),
+        "level": level,
+        "n_findings": len(findings),
+        "total_score": total_score,
+        "details": details,
+    }
+
+
+# ── 综合仪表盘 ─────────────────────────────────────────────
+
+def generate_summary_dashboard(all_results: Dict[str, Dict], output_dir: str = "output"):
+    """
+    生成综合分析仪表盘
+
+    Parameters
+    ----------
+    all_results : dict
+        {module_name: module_result_dict}
+    output_dir : str
+        输出目录
+    """
+    apply_style()
+    out = ensure_dir(output_dir)
+
+    # ── 1. 汇总各模块证据强度 ──
+    summary_rows = []
+    for module, result in all_results.items():
+        ev = score_evidence(result)
+        summary_rows.append({
+            "module": module,
+            "score": ev["score"],
+            "level": ev["level"],
+            "n_findings": ev["n_findings"],
+            "total_score": ev["total_score"],
+        })
+
+    summary_df = pd.DataFrame(summary_rows)
+    if summary_df.empty:
+        print("[visualization] 无模块结果可汇总")
+        return {}
+
+    summary_df.sort_values("score", ascending=True, inplace=True)
+
+    # ── 2. 证据强度横向柱状图 ──
+    fig, ax = plt.subplots(figsize=(10, max(6, len(summary_df) * 0.5)))
+    colors = [EVIDENCE_COLORS.get(row["level"], "#6b7280") for _, row in summary_df.iterrows()]
+    bars = ax.barh(summary_df["module"], summary_df["score"], color=colors, edgecolor="white", linewidth=0.5)
+
+    for bar, (_, row) in zip(bars, summary_df.iterrows()):
+        ax.text(bar.get_width() + 0.1, bar.get_y() + bar.get_height()/2,
+                f'{row["score"]:.1f} ({row["level"]})',
+                va='center', fontsize=9)
+
+    ax.set_xlabel("Evidence Score")
+    ax.set_title("BTC/USDT Analysis - Evidence Strength by Module")
+    ax.axvline(x=3, color="#d97706", linestyle="--", alpha=0.5, label="Moderate threshold")
+    ax.axvline(x=5, color="#059669", linestyle="--", alpha=0.5, label="Strong threshold")
+    ax.legend(loc="lower right")
+    plt.tight_layout()
+    fig.savefig(out / "evidence_dashboard.png")
+    plt.close(fig)
+
+    # ── 3. 综合结论文本报告 ──
+    report_lines = []
+    report_lines.append("=" * 70)
+    report_lines.append("BTC/USDT 价格规律性分析 — 综合结论报告")
+    report_lines.append("=" * 70)
+    report_lines.append("")
+    report_lines.append(EVIDENCE_CRITERIA)
+    report_lines.append("")
+    report_lines.append("-" * 70)
+    report_lines.append(f"{'模块':<30} {'得分':>6} {'强度':>10} {'发现数':>8}")
+    report_lines.append("-" * 70)
+
+    for _, row in summary_df.sort_values("score", ascending=False).iterrows():
+        report_lines.append(
+            f"{row['module']:<30} {row['score']:>6.2f} {row['level']:>10} {row['n_findings']:>8}"
+        )
+
+    report_lines.append("-" * 70)
+    report_lines.append("")
+
+    # 分级汇总
+    strong = summary_df[summary_df["level"] == "strong"]["module"].tolist()
+    moderate = summary_df[summary_df["level"] == "moderate"]["module"].tolist()
+    weak = summary_df[summary_df["level"] == "weak"]["module"].tolist()
+    none_found = summary_df[summary_df["level"] == "none"]["module"].tolist()
+
+    report_lines.append("## 强证据规律（可重复、有经济意义）:")
+    if strong:
+        for m in strong:
+            report_lines.append(f"  * {m}")
+    else:
+        report_lines.append("  （无）")
+
+    report_lines.append("")
+    report_lines.append("## 中等证据规律（统计显著但效果有限）:")
+    if moderate:
+        for m in moderate:
+            report_lines.append(f"  * {m}")
+    else:
+        report_lines.append("  （无）")
+
+    report_lines.append("")
+    report_lines.append("## 弱证据/不显著:")
+    for m in weak + none_found:
+        report_lines.append(f"  * {m}")
+
+    report_lines.append("")
+    report_lines.append("=" * 70)
+    report_lines.append("注: 得分基于各模块自报告的统计检验结果。")
+    report_lines.append("    具体参数和图表请参见各子目录的输出。")
+    report_lines.append("=" * 70)
+
+    report_text = "\n".join(report_lines)
+
+    with open(out / "综合结论报告.txt", "w", encoding="utf-8") as f:
+        f.write(report_text)
+
+    # ── 4. JSON 格式结果存储 ──
+    json_results = {}
+    for module, result in all_results.items():
+        # 去除不可序列化的对象
+        clean = {}
+        for k, v in result.items():
+            try:
+                json.dumps(v)
+                clean[k] = v
+            except (TypeError, ValueError):
+                clean[k] = str(v)
+        json_results[module] = clean
+
+    with open(out / "all_results.json", "w", encoding="utf-8") as f:
+        json.dump(json_results, f, ensure_ascii=False, indent=2, default=str)
+
+    print(report_text)
+
+    return {
+        "summary_df": summary_df,
+        "report_path": str(out / "综合结论报告.txt"),
+        "dashboard_path": str(out / "evidence_dashboard.png"),
+        "json_path": str(out / "all_results.json"),
+    }
+
+
+def plot_price_overview(df: pd.DataFrame, output_dir: str = "output"):
+    """生成价格概览图（对数尺度 + 成交量 + 关键事件标注）"""
+    apply_style()
+    out = ensure_dir(output_dir)
+
+    fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(14, 8), height_ratios=[3, 1],
+                                    sharex=True, gridspec_kw={"hspace": 0.05})
+
+    # 价格（对数尺度）
+    ax1.semilogy(df.index, df["close"], color=COLOR_PALETTE["primary"], linewidth=0.8)
+    ax1.set_ylabel("Price (USDT, log scale)")
+    ax1.set_title("BTC/USDT Price & Volume Overview")
+
+    # 标注减半事件
+    halvings = [
+        ("2020-05-11", "3rd Halving"),
+        ("2024-04-20", "4th Halving"),
+    ]
+    for date_str, label in halvings:
+        dt = pd.Timestamp(date_str)
+        if df.index.min() <= dt <= df.index.max():
+            ax1.axvline(x=dt, color=COLOR_PALETTE["danger"], linestyle="--", alpha=0.6)
+            ax1.text(dt, ax1.get_ylim()[1] * 0.9, label, rotation=90,
+                     va="top", fontsize=8, color=COLOR_PALETTE["danger"])
+
+    # 成交量
+    ax2.bar(df.index, df["volume"], width=1, color=COLOR_PALETTE["info"], alpha=0.5)
+    ax2.set_ylabel("Volume")
+    ax2.set_xlabel("Date")
+
+    fig.savefig(out / "price_overview.png")
+    plt.close(fig)
+    print(f"[visualization] 价格概览图 -> {out / 'price_overview.png'}")
diff --git a/src/volatility_analysis.py b/src/volatility_analysis.py
new file mode 100644
index 0000000..6cfdca3
--- /dev/null
+++ b/src/volatility_analysis.py
@@ -0,0 +1,639 @@
+"""波动率聚集与非对称GARCH建模模块
+
+分析内容：
+- 多窗口已实现波动率（7d, 30d, 90d）
+- 波动率自相关幂律衰减检验（长记忆性）
+- GARCH/EGARCH/GJR-GARCH 模型对比
+- 杠杆效应分析：收益率与未来波动率的相关性
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy import stats
+from scipy.optimize import curve_fit
+from statsmodels.tsa.stattools import acf
+from pathlib import Path
+from typing import Optional
+
+from src.data_loader import load_daily
+from src.preprocessing import log_returns
+
+
+# ============================================================
+# 1. 多窗口已实现波动率
+# ============================================================
+
+def multi_window_realized_vol(returns: pd.Series,
+                               windows: list = [7, 30, 90]) -> pd.DataFrame:
+    """
+    计算多窗口已实现波动率（年化）
+
+    Parameters
+    ----------
+    returns : pd.Series
+        日对数收益率
+    windows : list
+        滚动窗口列表（天数）
+
+    Returns
+    -------
+    pd.DataFrame
+        各窗口已实现波动率，列名为 'rv_7d', 'rv_30d', 'rv_90d' 等
+    """
+    vol_df = pd.DataFrame(index=returns.index)
+    for w in windows:
+        # 已实现波动率 = sqrt(sum(r^2)) * sqrt(365/window) 进行年化
+        rv = np.sqrt((returns ** 2).rolling(window=w).sum()) * np.sqrt(365 / w)
+        vol_df[f'rv_{w}d'] = rv
+    return vol_df.dropna(how='all')
+
+
+# ============================================================
+# 2. 波动率自相关幂律衰减检验（长记忆性）
+# ============================================================
+
+def volatility_acf_power_law(returns: pd.Series,
+                              max_lags: int = 200) -> dict:
+    """
+    检验|收益率|的自相关函数是否服从幂律衰减：ACF(k) ~ k^(-d)
+
+    长记忆性判断：若 0 < d < 1，则存在长记忆
+
+    Parameters
+    ----------
+    returns : pd.Series
+        日对数收益率
+    max_lags : int
+        最大滞后阶数
+
+    Returns
+    -------
+    dict
+        包含幂律拟合参数d、拟合优度R²、ACF值等
+    """
+    abs_returns = returns.dropna().abs()
+
+    # 计算ACF
+    acf_values = acf(abs_returns, nlags=max_lags, fft=True)
+    # 从lag=1开始（lag=0始终为1）
+    lags = np.arange(1, max_lags + 1)
+    acf_vals = acf_values[1:]
+
+    # 只取正的ACF值来做对数拟合
+    positive_mask = acf_vals > 0
+    lags_pos = lags[positive_mask]
+    acf_pos = acf_vals[positive_mask]
+
+    if len(lags_pos) < 10:
+        print("[警告] 正的ACF值过少，无法可靠拟合幂律")
+        return {
+            'd': np.nan, 'r_squared': np.nan,
+            'lags': lags, 'acf_values': acf_vals,
+            'is_long_memory': False,
+        }
+
+    # 对数-对数线性回归: log(ACF) = -d * log(k) + c
+    log_lags = np.log(lags_pos)
+    log_acf = np.log(acf_pos)
+    slope, intercept, r_value, p_value, std_err = stats.linregress(log_lags, log_acf)
+
+    d = -slope  # 幂律衰减指数
+    r_squared = r_value ** 2
+
+    # 非线性拟合作为对照（幂律函数直接拟合）
+    def power_law(k, a, d_param):
+        return a * k ** (-d_param)
+
+    try:
+        popt, pcov = curve_fit(power_law, lags_pos, acf_pos,
+                               p0=[acf_pos[0], d], maxfev=5000)
+        d_nonlinear = popt[1]
+    except (RuntimeError, ValueError):
+        d_nonlinear = np.nan
+
+    results = {
+        'd': d,
+        'd_nonlinear': d_nonlinear,
+        'r_squared': r_squared,
+        'slope': slope,
+        'intercept': intercept,
+        'p_value': p_value,
+        'std_err': std_err,
+        'lags': lags,
+        'acf_values': acf_vals,
+        'lags_positive': lags_pos,
+        'acf_positive': acf_pos,
+        'is_long_memory': 0 < d < 1,
+    }
+    return results
+
+
+# ============================================================
+# 3. GARCH / EGARCH / GJR-GARCH 模型对比
+# ============================================================
+
+def compare_garch_models(returns: pd.Series) -> dict:
+    """
+    拟合GARCH(1,1)、EGARCH(1,1)、GJR-GARCH(1,1)并比较AIC/BIC
+
+    Parameters
+    ----------
+    returns : pd.Series
+        日对数收益率
+
+    Returns
+    -------
+    dict
+        各模型参数、AIC/BIC、杠杆效应参数
+    """
+    from arch import arch_model
+
+    r_pct = returns.dropna() * 100  # 百分比收益率
+    results = {}
+
+    # --- GARCH(1,1) ---
+    model_garch = arch_model(r_pct, vol='Garch', p=1, q=1,
+                              mean='Constant', dist='Normal')
+    res_garch = model_garch.fit(disp='off')
+    results['GARCH'] = {
+        'params': dict(res_garch.params),
+        'aic': res_garch.aic,
+        'bic': res_garch.bic,
+        'log_likelihood': res_garch.loglikelihood,
+        'conditional_volatility': res_garch.conditional_volatility / 100,
+        'result_obj': res_garch,
+    }
+
+    # --- EGARCH(1,1) ---
+    model_egarch = arch_model(r_pct, vol='EGARCH', p=1, q=1,
+                               mean='Constant', dist='Normal')
+    res_egarch = model_egarch.fit(disp='off')
+    # EGARCH的gamma参数反映杠杆效应（负值表示负收益增大波动率）
+    egarch_params = dict(res_egarch.params)
+    results['EGARCH'] = {
+        'params': egarch_params,
+        'aic': res_egarch.aic,
+        'bic': res_egarch.bic,
+        'log_likelihood': res_egarch.loglikelihood,
+        'conditional_volatility': res_egarch.conditional_volatility / 100,
+        'leverage_param': egarch_params.get('gamma[1]', np.nan),
+        'result_obj': res_egarch,
+    }
+
+    # --- GJR-GARCH(1,1) ---
+    # GJR-GARCH 在 arch 库中通过 vol='Garch', o=1 实现
+    model_gjr = arch_model(r_pct, vol='Garch', p=1, o=1, q=1,
+                            mean='Constant', dist='Normal')
+    res_gjr = model_gjr.fit(disp='off')
+    gjr_params = dict(res_gjr.params)
+    results['GJR-GARCH'] = {
+        'params': gjr_params,
+        'aic': res_gjr.aic,
+        'bic': res_gjr.bic,
+        'log_likelihood': res_gjr.loglikelihood,
+        'conditional_volatility': res_gjr.conditional_volatility / 100,
+        # gamma[1] > 0 表示负冲击产生更大波动
+        'leverage_param': gjr_params.get('gamma[1]', np.nan),
+        'result_obj': res_gjr,
+    }
+
+    return results
+
+
+# ============================================================
+# 4. 杠杆效应分析
+# ============================================================
+
+def leverage_effect_analysis(returns: pd.Series,
+                              forward_windows: list = [5, 10, 20]) -> dict:
+    """
+    分析收益率与未来波动率的相关性（杠杆效应）
+
+    杠杆效应：负收益倾向于增加未来波动率，正收益倾向于减少未来波动率
+    表现为 corr(r_t, vol_{t+k}) < 0
+
+    Parameters
+    ----------
+    returns : pd.Series
+        日对数收益率
+    forward_windows : list
+        前瞻波动率窗口列表
+
+    Returns
+    -------
+    dict
+        各窗口下的相关系数及显著性
+    """
+    r = returns.dropna()
+    results = {}
+
+    for w in forward_windows:
+        # 前瞻已实现波动率
+        future_vol = r.abs().rolling(window=w).mean().shift(-w)
+        # 对齐有效数据
+        valid = pd.DataFrame({'return': r, 'future_vol': future_vol}).dropna()
+
+        if len(valid) < 30:
+            results[f'{w}d'] = {
+                'correlation': np.nan,
+                'p_value': np.nan,
+                'n_samples': len(valid),
+            }
+            continue
+
+        corr, p_val = stats.pearsonr(valid['return'], valid['future_vol'])
+        # Spearman秩相关作为稳健性检查
+        spearman_corr, spearman_p = stats.spearmanr(valid['return'], valid['future_vol'])
+
+        results[f'{w}d'] = {
+            'pearson_correlation': corr,
+            'pearson_pvalue': p_val,
+            'spearman_correlation': spearman_corr,
+            'spearman_pvalue': spearman_p,
+            'n_samples': len(valid),
+            'return_series': valid['return'],
+            'future_vol_series': valid['future_vol'],
+        }
+
+    return results
+
+
+# ============================================================
+# 5. 可视化
+# ============================================================
+
+def plot_realized_volatility(vol_df: pd.DataFrame, output_dir: Path):
+    """绘制多窗口已实现波动率时序图"""
+    fig, ax = plt.subplots(figsize=(14, 6))
+
+    colors = ['#1f77b4', '#ff7f0e', '#2ca02c']
+    labels = {'rv_7d': '7天', 'rv_30d': '30天', 'rv_90d': '90天'}
+
+    for idx, col in enumerate(vol_df.columns):
+        label = labels.get(col, col)
+        ax.plot(vol_df.index, vol_df[col], linewidth=0.8,
+                color=colors[idx % len(colors)],
+                label=f'{label}已实现波动率（年化）', alpha=0.85)
+
+    ax.set_xlabel('日期', fontsize=12)
+    ax.set_ylabel('年化波动率', fontsize=12)
+    ax.set_title('BTC 多窗口已实现波动率', fontsize=14)
+    ax.legend(fontsize=11)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'realized_volatility_multiwindow.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'realized_volatility_multiwindow.png'}")
+
+
+def plot_acf_power_law(acf_results: dict, output_dir: Path):
+    """绘制ACF幂律衰减拟合图"""
+    fig, axes = plt.subplots(1, 2, figsize=(14, 5))
+
+    lags = acf_results['lags']
+    acf_vals = acf_results['acf_values']
+
+    # 左图：ACF原始值
+    ax1 = axes[0]
+    ax1.bar(lags, acf_vals, width=1, alpha=0.6, color='steelblue')
+    ax1.set_xlabel('滞后阶数', fontsize=11)
+    ax1.set_ylabel('ACF', fontsize=11)
+    ax1.set_title('|收益率| 自相关函数', fontsize=12)
+    ax1.grid(True, alpha=0.3)
+    ax1.axhline(y=0, color='black', linewidth=0.5)
+
+    # 右图：对数-对数图 + 幂律拟合
+    ax2 = axes[1]
+    lags_pos = acf_results['lags_positive']
+    acf_pos = acf_results['acf_positive']
+
+    ax2.scatter(np.log(lags_pos), np.log(acf_pos), s=10, alpha=0.5,
+                color='steelblue', label='实际ACF')
+
+    # 拟合线
+    d = acf_results['d']
+    intercept = acf_results['intercept']
+    x_fit = np.linspace(np.log(lags_pos.min()), np.log(lags_pos.max()), 100)
+    y_fit = -d * x_fit + intercept
+    ax2.plot(x_fit, y_fit, 'r-', linewidth=2,
+             label=f'幂律拟合: d={d:.3f}, R²={acf_results["r_squared"]:.3f}')
+
+    ax2.set_xlabel('log(滞后阶数)', fontsize=11)
+    ax2.set_ylabel('log(ACF)', fontsize=11)
+    ax2.set_title('幂律衰减拟合（双对数坐标）', fontsize=12)
+    ax2.legend(fontsize=10)
+    ax2.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'acf_power_law_fit.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'acf_power_law_fit.png'}")
+
+
+def plot_model_comparison(model_results: dict, output_dir: Path):
+    """绘制GARCH模型对比图（AIC/BIC + 条件波动率对比）"""
+    fig, axes = plt.subplots(2, 1, figsize=(14, 10))
+
+    model_names = list(model_results.keys())
+    aic_values = [model_results[m]['aic'] for m in model_names]
+    bic_values = [model_results[m]['bic'] for m in model_names]
+
+    # 上图：AIC/BIC 对比柱状图
+    ax1 = axes[0]
+    x = np.arange(len(model_names))
+    width = 0.35
+    bars1 = ax1.bar(x - width / 2, aic_values, width, label='AIC',
+                     color='steelblue', alpha=0.8)
+    bars2 = ax1.bar(x + width / 2, bic_values, width, label='BIC',
+                     color='coral', alpha=0.8)
+
+    ax1.set_xlabel('模型', fontsize=12)
+    ax1.set_ylabel('信息准则值', fontsize=12)
+    ax1.set_title('GARCH 模型信息准则对比（越小越好）', fontsize=13)
+    ax1.set_xticks(x)
+    ax1.set_xticklabels(model_names, fontsize=11)
+    ax1.legend(fontsize=11)
+    ax1.grid(True, alpha=0.3, axis='y')
+
+    # 在柱状图上标注数值
+    for bar in bars1:
+        height = bar.get_height()
+        ax1.annotate(f'{height:.1f}',
+                     xy=(bar.get_x() + bar.get_width() / 2, height),
+                     xytext=(0, 3), textcoords="offset points",
+                     ha='center', va='bottom', fontsize=9)
+    for bar in bars2:
+        height = bar.get_height()
+        ax1.annotate(f'{height:.1f}',
+                     xy=(bar.get_x() + bar.get_width() / 2, height),
+                     xytext=(0, 3), textcoords="offset points",
+                     ha='center', va='bottom', fontsize=9)
+
+    # 下图：各模型条件波动率时序对比
+    ax2 = axes[1]
+    colors = {'GARCH': '#1f77b4', 'EGARCH': '#ff7f0e', 'GJR-GARCH': '#2ca02c'}
+    for name in model_names:
+        cv = model_results[name]['conditional_volatility']
+        ax2.plot(cv.index, cv.values, linewidth=0.7,
+                 color=colors.get(name, 'gray'),
+                 label=name, alpha=0.8)
+
+    ax2.set_xlabel('日期', fontsize=12)
+    ax2.set_ylabel('条件波动率', fontsize=12)
+    ax2.set_title('各GARCH模型条件波动率对比', fontsize=13)
+    ax2.legend(fontsize=11)
+    ax2.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'garch_model_comparison.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'garch_model_comparison.png'}")
+
+
+def plot_leverage_effect(leverage_results: dict, output_dir: Path):
+    """绘制杠杆效应散点图"""
+    # 找到有数据的窗口
+    valid_windows = [w for w, r in leverage_results.items()
+                     if 'return_series' in r]
+    n_plots = len(valid_windows)
+    if n_plots == 0:
+        print("[警告] 无有效杠杆效应数据可绘制")
+        return
+
+    fig, axes = plt.subplots(1, n_plots, figsize=(6 * n_plots, 5))
+    if n_plots == 1:
+        axes = [axes]
+
+    for idx, window_key in enumerate(valid_windows):
+        ax = axes[idx]
+        data = leverage_results[window_key]
+        ret = data['return_series']
+        fvol = data['future_vol_series']
+
+        # 散点图（采样避免过多点）
+        n_sample = min(len(ret), 2000)
+        sample_idx = np.random.choice(len(ret), n_sample, replace=False)
+        ax.scatter(ret.values[sample_idx], fvol.values[sample_idx],
+                   s=5, alpha=0.3, color='steelblue')
+
+        # 回归线
+        z = np.polyfit(ret.values, fvol.values, 1)
+        p = np.poly1d(z)
+        x_line = np.linspace(ret.min(), ret.max(), 100)
+        ax.plot(x_line, p(x_line), 'r-', linewidth=2)
+
+        corr = data['pearson_correlation']
+        p_val = data['pearson_pvalue']
+        ax.set_xlabel('当日对数收益率', fontsize=11)
+        ax.set_ylabel(f'未来{window_key}平均|收益率|', fontsize=11)
+        ax.set_title(f'杠杆效应 ({window_key})\n'
+                     f'Pearson r={corr:.4f}, p={p_val:.2e}', fontsize=11)
+        ax.grid(True, alpha=0.3)
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'leverage_effect_scatter.png',
+                dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"[保存] {output_dir / 'leverage_effect_scatter.png'}")
+
+
+# ============================================================
+# 6. 结果打印
+# ============================================================
+
+def print_realized_vol_summary(vol_df: pd.DataFrame):
+    """打印已实现波动率统计摘要"""
+    print("\n" + "=" * 60)
+    print("多窗口已实现波动率统计（年化）")
+    print("=" * 60)
+    summary = vol_df.describe().T
+    for col in vol_df.columns:
+        s = vol_df[col].dropna()
+        print(f"\n  {col}:")
+        print(f"    均值:   {s.mean():.4f} ({s.mean() * 100:.2f}%)")
+        print(f"    中位数: {s.median():.4f} ({s.median() * 100:.2f}%)")
+        print(f"    最大值: {s.max():.4f} ({s.max() * 100:.2f}%)")
+        print(f"    最小值: {s.min():.4f} ({s.min() * 100:.2f}%)")
+        print(f"    标准差: {s.std():.4f}")
+
+
+def print_acf_power_law_results(results: dict):
+    """打印ACF幂律衰减检验结果"""
+    print("\n" + "=" * 60)
+    print("波动率自相关幂律衰减检验（长记忆性）")
+    print("=" * 60)
+    print(f"  幂律衰减指数 d (线性拟合):   {results['d']:.4f}")
+    print(f"  幂律衰减指数 d (非线性拟合): {results['d_nonlinear']:.4f}")
+    print(f"  拟合优度 R²:                  {results['r_squared']:.4f}")
+    print(f"  回归斜率:                     {results['slope']:.4f}")
+    print(f"  回归截距:                     {results['intercept']:.4f}")
+    print(f"  p值:                          {results['p_value']:.2e}")
+    print(f"  标准误:                       {results['std_err']:.4f}")
+    print(f"\n  长记忆性判断 (0 < d < 1):     "
+          f"{'是 - 存在长记忆性' if results['is_long_memory'] else '否'}")
+    if results['is_long_memory']:
+        print(f"    → |收益率|的自相关以幂律速度缓慢衰减")
+        print(f"    → 波动率聚集具有长记忆特征，GARCH模型的持续性可能不足以刻画")
+
+
+def print_model_comparison(model_results: dict):
+    """打印GARCH模型对比结果"""
+    print("\n" + "=" * 60)
+    print("GARCH / EGARCH / GJR-GARCH 模型对比")
+    print("=" * 60)
+
+    print(f"\n  {'模型':<14} {'AIC':>12} {'BIC':>12} {'对数似然':>12}")
+    print("  " + "-" * 52)
+    for name, res in model_results.items():
+        print(f"  {name:<14} {res['aic']:>12.2f} {res['bic']:>12.2f} "
+              f"{res['log_likelihood']:>12.2f}")
+
+    # 找到最优模型
+    best_aic = min(model_results.items(), key=lambda x: x[1]['aic'])
+    best_bic = min(model_results.items(), key=lambda x: x[1]['bic'])
+    print(f"\n  AIC最优模型: {best_aic[0]} (AIC={best_aic[1]['aic']:.2f})")
+    print(f"  BIC最优模型: {best_bic[0]} (BIC={best_bic[1]['bic']:.2f})")
+
+    # 杠杆效应参数
+    print("\n  杠杆效应参数:")
+    for name in ['EGARCH', 'GJR-GARCH']:
+        if name in model_results and 'leverage_param' in model_results[name]:
+            gamma = model_results[name]['leverage_param']
+            print(f"    {name} gamma[1] = {gamma:.6f}")
+            if name == 'EGARCH':
+                # EGARCH中gamma<0表示负冲击增大波动
+                if gamma < 0:
+                    print(f"      → gamma < 0: 负收益（下跌）产生更大波动，存在杠杆效应")
+                else:
+                    print(f"      → gamma >= 0: 未观察到明显杠杆效应")
+            elif name == 'GJR-GARCH':
+                # GJR-GARCH中gamma>0表示负冲击的额外影响
+                if gamma > 0:
+                    print(f"      → gamma > 0: 负冲击产生额外波动增量，存在杠杆效应")
+                else:
+                    print(f"      → gamma <= 0: 未观察到明显杠杆效应")
+
+    # 打印各模型详细参数
+    print("\n  各模型详细参数:")
+    for name, res in model_results.items():
+        print(f"\n  [{name}]")
+        for param_name, param_val in res['params'].items():
+            print(f"    {param_name}: {param_val:.6f}")
+
+
+def print_leverage_results(leverage_results: dict):
+    """打印杠杆效应分析结果"""
+    print("\n" + "=" * 60)
+    print("杠杆效应分析：收益率与未来波动率的相关性")
+    print("=" * 60)
+    print(f"\n  {'窗口':<8} {'Pearson r':>12} {'p值':>12} "
+          f"{'Spearman r':>12} {'p值':>12} {'样本数':>8}")
+    print("  " + "-" * 66)
+    for window, data in leverage_results.items():
+        if 'pearson_correlation' in data:
+            print(f"  {window:<8} "
+                  f"{data['pearson_correlation']:>12.4f} "
+                  f"{data['pearson_pvalue']:>12.2e} "
+                  f"{data['spearman_correlation']:>12.4f} "
+                  f"{data['spearman_pvalue']:>12.2e} "
+                  f"{data['n_samples']:>8d}")
+        else:
+            print(f"  {window:<8} {'N/A':>12} {'N/A':>12} "
+                  f"{'N/A':>12} {'N/A':>12} {data.get('n_samples', 0):>8d}")
+
+    # 总结
+    print("\n  解读:")
+    print("    - 相关系数 < 0: 负收益（下跌）后波动率上升 → 存在杠杆效应")
+    print("    - 相关系数 ≈ 0: 收益率方向与未来波动率无关")
+    print("    - 相关系数 > 0: 正收益（上涨）后波动率上升（反向杠杆/波动率反馈效应）")
+    print("    - 注意: BTC作为加密货币，杠杆效应可能与传统股票不同")
+
+
+# ============================================================
+# 7. 主入口
+# ============================================================
+
+def run_volatility_analysis(df: pd.DataFrame, output_dir: str = "output/volatility"):
+    """
+    波动率聚集与非对称GARCH分析主函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线K线数据（含'close'列，DatetimeIndex索引）
+    output_dir : str
+        图表输出目录
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("BTC 波动率聚集与非对称 GARCH 分析")
+    print("=" * 60)
+    print(f"数据范围: {df.index.min()} ~ {df.index.max()}")
+    print(f"样本数量: {len(df)}")
+
+    # 计算日对数收益率
+    daily_returns = log_returns(df['close'])
+    print(f"日对数收益率样本数: {len(daily_returns)}")
+
+    # 设置中文字体（兼容多系统）
+    plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+    plt.rcParams['axes.unicode_minus'] = False
+
+    # 固定随机种子以保证杠杆效应散点图采样可复现
+    np.random.seed(42)
+
+    # --- 多窗口已实现波动率 ---
+    print("\n>>> 计算多窗口已实现波动率 (7d, 30d, 90d)...")
+    vol_df = multi_window_realized_vol(daily_returns, windows=[7, 30, 90])
+    print_realized_vol_summary(vol_df)
+    plot_realized_volatility(vol_df, output_dir)
+
+    # --- ACF幂律衰减检验 ---
+    print("\n>>> 执行波动率自相关幂律衰减检验...")
+    acf_results = volatility_acf_power_law(daily_returns, max_lags=200)
+    print_acf_power_law_results(acf_results)
+    plot_acf_power_law(acf_results, output_dir)
+
+    # --- GARCH模型对比 ---
+    print("\n>>> 拟合 GARCH / EGARCH / GJR-GARCH 模型...")
+    model_results = compare_garch_models(daily_returns)
+    print_model_comparison(model_results)
+    plot_model_comparison(model_results, output_dir)
+
+    # --- 杠杆效应分析 ---
+    print("\n>>> 执行杠杆效应分析...")
+    leverage_results = leverage_effect_analysis(daily_returns,
+                                                forward_windows=[5, 10, 20])
+    print_leverage_results(leverage_results)
+    plot_leverage_effect(leverage_results, output_dir)
+
+    print("\n" + "=" * 60)
+    print("波动率分析完成！")
+    print(f"图表已保存至: {output_dir.resolve()}")
+    print("=" * 60)
+
+    # 返回所有结果供后续使用
+    return {
+        'realized_vol': vol_df,
+        'acf_power_law': acf_results,
+        'model_comparison': model_results,
+        'leverage_effect': leverage_results,
+    }
+
+
+# ============================================================
+# 独立运行入口
+# ============================================================
+
+if __name__ == '__main__':
+    df = load_daily()
+    run_volatility_analysis(df)
diff --git a/src/volume_price_analysis.py b/src/volume_price_analysis.py
new file mode 100644
index 0000000..2afe8cf
--- /dev/null
+++ b/src/volume_price_analysis.py
@@ -0,0 +1,577 @@
+"""成交量-价格关系与OBV分析
+
+分析BTC成交量与价格变动的关系，包括Spearman相关性、
+Taker买入比例领先分析、Granger因果检验和OBV背离检测。
+"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from scipy import stats
+from statsmodels.tsa.stattools import grangercausalitytests
+from pathlib import Path
+from typing import Dict, List, Tuple
+
+# 中文显示支持
+plt.rcParams['font.sans-serif'] = ['Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+plt.rcParams['axes.unicode_minus'] = False
+
+
+# =============================================================================
+#  核心分析函数
+# =============================================================================
+
+def _spearman_volume_returns(volume: pd.Series, returns: pd.Series) -> Dict:
+    """Spearman秩相关: 成交量 vs |收益率|
+
+    使用Spearman而非Pearson，因为量价关系通常是非线性的。
+
+    Returns
+    -------
+    dict
+        包含 correlation, p_value, n_samples
+    """
+    # 对齐索引并去除NaN
+    abs_ret = returns.abs()
+    aligned = pd.concat([volume, abs_ret], axis=1, keys=['volume', 'abs_return']).dropna()
+
+    corr, p_val = stats.spearmanr(aligned['volume'], aligned['abs_return'])
+
+    return {
+        'correlation': corr,
+        'p_value': p_val,
+        'n_samples': len(aligned),
+    }
+
+
+def _taker_buy_ratio_lead_lag(
+    taker_buy_ratio: pd.Series,
+    returns: pd.Series,
+    max_lag: int = 20,
+) -> pd.DataFrame:
+    """Taker买入比例领先-滞后分析
+
+    计算 taker_buy_ratio(t) 与 returns(t+lag) 的互相关，
+    检验买入比例对未来收益的预测能力。
+
+    Parameters
+    ----------
+    taker_buy_ratio : pd.Series
+        Taker买入占比序列
+    returns : pd.Series
+        对数收益率序列
+    max_lag : int
+        最大领先天数
+
+    Returns
+    -------
+    pd.DataFrame
+        包含 lag, correlation, p_value, significant 列
+    """
+    results = []
+    for lag in range(1, max_lag + 1):
+        # taker_buy_ratio(t) vs returns(t+lag)
+        ratio_shifted = taker_buy_ratio.shift(lag)
+        aligned = pd.concat([ratio_shifted, returns], axis=1).dropna()
+        aligned.columns = ['ratio', 'return']
+
+        if len(aligned) < 30:
+            continue
+
+        corr, p_val = stats.spearmanr(aligned['ratio'], aligned['return'])
+        results.append({
+            'lag': lag,
+            'correlation': corr,
+            'p_value': p_val,
+            'significant': p_val < 0.05,
+        })
+
+    return pd.DataFrame(results)
+
+
+def _granger_causality(
+    volume: pd.Series,
+    returns: pd.Series,
+    max_lag: int = 10,
+) -> Dict[str, pd.DataFrame]:
+    """双向Granger因果检验: 成交量 ↔ 收益率
+
+    Parameters
+    ----------
+    volume : pd.Series
+        成交量序列
+    returns : pd.Series
+        收益率序列
+    max_lag : int
+        最大滞后阶数
+
+    Returns
+    -------
+    dict
+        'volume_to_returns': 成交量→收益率 的p值表
+        'returns_to_volume': 收益率→成交量 的p值表
+    """
+    # 对齐并去除NaN
+    aligned = pd.concat([volume, returns], axis=1, keys=['volume', 'returns']).dropna()
+
+    results = {}
+
+    # 方向1: 成交量 → 收益率 (检验成交量是否Granger-cause收益率)
+    # grangercausalitytests 的数据格式: [被预测变量, 预测变量]
+    try:
+        data_v2r = aligned[['returns', 'volume']].values
+        gc_v2r = grangercausalitytests(data_v2r, maxlag=max_lag, verbose=False)
+        rows_v2r = []
+        for lag_order in range(1, max_lag + 1):
+            test_results = gc_v2r[lag_order][0]
+            rows_v2r.append({
+                'lag': lag_order,
+                'ssr_ftest_pval': test_results['ssr_ftest'][1],
+                'ssr_chi2test_pval': test_results['ssr_chi2test'][1],
+                'lrtest_pval': test_results['lrtest'][1],
+                'params_ftest_pval': test_results['params_ftest'][1],
+            })
+        results['volume_to_returns'] = pd.DataFrame(rows_v2r)
+    except Exception as e:
+        print(f"  [警告] 成交量→收益率 Granger检验失败: {e}")
+        results['volume_to_returns'] = pd.DataFrame()
+
+    # 方向2: 收益率 → 成交量
+    try:
+        data_r2v = aligned[['volume', 'returns']].values
+        gc_r2v = grangercausalitytests(data_r2v, maxlag=max_lag, verbose=False)
+        rows_r2v = []
+        for lag_order in range(1, max_lag + 1):
+            test_results = gc_r2v[lag_order][0]
+            rows_r2v.append({
+                'lag': lag_order,
+                'ssr_ftest_pval': test_results['ssr_ftest'][1],
+                'ssr_chi2test_pval': test_results['ssr_chi2test'][1],
+                'lrtest_pval': test_results['lrtest'][1],
+                'params_ftest_pval': test_results['params_ftest'][1],
+            })
+        results['returns_to_volume'] = pd.DataFrame(rows_r2v)
+    except Exception as e:
+        print(f"  [警告] 收益率→成交量 Granger检验失败: {e}")
+        results['returns_to_volume'] = pd.DataFrame()
+
+    return results
+
+
+def _compute_obv(df: pd.DataFrame) -> pd.Series:
+    """计算OBV (On-Balance Volume)
+
+    规则:
+    - 收盘价上涨: OBV += volume
+    - 收盘价下跌: OBV -= volume
+    - 收盘价持平: OBV 不变
+    """
+    close = df['close']
+    volume = df['volume']
+
+    direction = np.sign(close.diff())
+    obv = (direction * volume).fillna(0).cumsum()
+    obv.name = 'obv'
+    return obv
+
+
+def _detect_obv_divergences(
+    prices: pd.Series,
+    obv: pd.Series,
+    window: int = 60,
+    lookback: int = 5,
+) -> pd.DataFrame:
+    """检测OBV-价格背离
+
+    背离类型:
+    - 顶背离 (bearish): 价格创新高但OBV未创新高 → 潜在下跌信号
+    - 底背离 (bullish): 价格创新低但OBV未创新低 → 潜在上涨信号
+
+    Parameters
+    ----------
+    prices : pd.Series
+        收盘价序列
+    obv : pd.Series
+        OBV序列
+    window : int
+        滚动窗口大小，用于判断"新高"/"新低"
+    lookback : int
+        新高/新低确认回看天数
+
+    Returns
+    -------
+    pd.DataFrame
+        背离事件表，包含 date, type, price, obv 列
+    """
+    divergences = []
+
+    # 滚动最高/最低
+    price_rolling_max = prices.rolling(window=window, min_periods=window).max()
+    price_rolling_min = prices.rolling(window=window, min_periods=window).min()
+    obv_rolling_max = obv.rolling(window=window, min_periods=window).max()
+    obv_rolling_min = obv.rolling(window=window, min_periods=window).min()
+
+    for i in range(window + lookback, len(prices)):
+        idx = prices.index[i]
+        price_val = prices.iloc[i]
+        obv_val = obv.iloc[i]
+
+        # 价格创近期新高 (最近lookback天内触及滚动最高)
+        recent_prices = prices.iloc[i - lookback:i + 1]
+        recent_obv = obv.iloc[i - lookback:i + 1]
+        rolling_max_price = price_rolling_max.iloc[i]
+        rolling_max_obv = obv_rolling_max.iloc[i]
+        rolling_min_price = price_rolling_min.iloc[i]
+        rolling_min_obv = obv_rolling_min.iloc[i]
+
+        # 顶背离: 价格 == 滚动最高 且 OBV 未达到滚动最高的95%
+        if price_val >= rolling_max_price * 0.998:
+            if obv_val < rolling_max_obv * 0.95:
+                divergences.append({
+                    'date': idx,
+                    'type': 'bearish',  # 顶背离
+                    'price': price_val,
+                    'obv': obv_val,
+                })
+
+        # 底背离: 价格 == 滚动最低 且 OBV 未达到滚动最低(更高)
+        if price_val <= rolling_min_price * 1.002:
+            if obv_val > rolling_min_obv * 1.05:
+                divergences.append({
+                    'date': idx,
+                    'type': 'bullish',  # 底背离
+                    'price': price_val,
+                    'obv': obv_val,
+                })
+
+    df_div = pd.DataFrame(divergences)
+
+    # 去除密集重复信号 (同类型信号间隔至少10天)
+    if not df_div.empty:
+        df_div = df_div.sort_values('date')
+        filtered = [df_div.iloc[0]]
+        for _, row in df_div.iloc[1:].iterrows():
+            last = filtered[-1]
+            if row['type'] != last['type'] or (row['date'] - last['date']).days >= 10:
+                filtered.append(row)
+        df_div = pd.DataFrame(filtered).reset_index(drop=True)
+
+    return df_div
+
+
+# =============================================================================
+#  可视化函数
+# =============================================================================
+
+def _plot_volume_return_scatter(
+    volume: pd.Series,
+    returns: pd.Series,
+    spearman_result: Dict,
+    output_dir: Path,
+):
+    """图1: 成交量 vs |收益率| 散点图"""
+    fig, ax = plt.subplots(figsize=(10, 7))
+
+    abs_ret = returns.abs()
+    aligned = pd.concat([volume, abs_ret], axis=1, keys=['volume', 'abs_return']).dropna()
+
+    ax.scatter(aligned['volume'], aligned['abs_return'],
+               s=5, alpha=0.3, color='steelblue')
+
+    rho = spearman_result['correlation']
+    p_val = spearman_result['p_value']
+    ax.set_xlabel('成交量', fontsize=12)
+    ax.set_ylabel('|对数收益率|', fontsize=12)
+    ax.set_title(f'成交量 vs |收益率| 散点图\nSpearman ρ={rho:.4f}, p={p_val:.2e}', fontsize=13)
+    ax.grid(True, alpha=0.3)
+
+    fig.savefig(output_dir / 'volume_return_scatter.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] 量价散点图已保存: {output_dir / 'volume_return_scatter.png'}")
+
+
+def _plot_lead_lag_correlation(
+    lead_lag_df: pd.DataFrame,
+    output_dir: Path,
+):
+    """图2: Taker买入比例领先-滞后相关性柱状图"""
+    fig, ax = plt.subplots(figsize=(12, 6))
+
+    if lead_lag_df.empty:
+        ax.text(0.5, 0.5, '数据不足，无法计算领先-滞后相关性',
+                transform=ax.transAxes, ha='center', va='center', fontsize=14)
+        fig.savefig(output_dir / 'taker_buy_lead_lag.png', dpi=150, bbox_inches='tight')
+        plt.close(fig)
+        return
+
+    colors = ['red' if sig else 'steelblue'
+              for sig in lead_lag_df['significant']]
+
+    bars = ax.bar(lead_lag_df['lag'], lead_lag_df['correlation'],
+                   color=colors, alpha=0.8, edgecolor='white')
+
+    # 显著性水平线
+    ax.axhline(y=0, color='black', linewidth=0.5)
+
+    ax.set_xlabel('领先天数 (lag)', fontsize=12)
+    ax.set_ylabel('Spearman 相关系数', fontsize=12)
+    ax.set_title('Taker买入比例对未来收益的领先相关性\n(红色=p<0.05 显著)', fontsize=13)
+    ax.set_xticks(lead_lag_df['lag'])
+    ax.grid(True, alpha=0.3, axis='y')
+
+    fig.savefig(output_dir / 'taker_buy_lead_lag.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] Taker买入比例领先分析已保存: {output_dir / 'taker_buy_lead_lag.png'}")
+
+
+def _plot_granger_heatmap(
+    granger_results: Dict[str, pd.DataFrame],
+    output_dir: Path,
+):
+    """图3: Granger因果检验p值热力图"""
+    fig, axes = plt.subplots(1, 2, figsize=(16, 6))
+
+    titles = {
+        'volume_to_returns': '成交量 → 收益率',
+        'returns_to_volume': '收益率 → 成交量',
+    }
+
+    for ax, (direction, df_gc) in zip(axes, granger_results.items()):
+        if df_gc.empty:
+            ax.text(0.5, 0.5, '检验失败', transform=ax.transAxes,
+                    ha='center', va='center', fontsize=14)
+            ax.set_title(titles[direction], fontsize=13)
+            continue
+
+        # 构建热力图矩阵
+        test_names = ['ssr_ftest_pval', 'ssr_chi2test_pval', 'lrtest_pval', 'params_ftest_pval']
+        test_labels = ['SSR F-test', 'SSR Chi2', 'LR test', 'Params F-test']
+        lags = df_gc['lag'].values
+
+        heatmap_data = df_gc[test_names].values.T  # shape: (4, n_lags)
+
+        im = ax.imshow(heatmap_data, aspect='auto', cmap='RdYlGn',
+                        vmin=0, vmax=0.1, interpolation='nearest')
+
+        ax.set_xticks(range(len(lags)))
+        ax.set_xticklabels(lags, fontsize=9)
+        ax.set_yticks(range(len(test_labels)))
+        ax.set_yticklabels(test_labels, fontsize=9)
+        ax.set_xlabel('滞后阶数', fontsize=11)
+        ax.set_title(f'Granger因果: {titles[direction]}', fontsize=13)
+
+        # 标注p值
+        for i in range(len(test_labels)):
+            for j in range(len(lags)):
+                val = heatmap_data[i, j]
+                color = 'white' if val < 0.03 else 'black'
+                ax.text(j, i, f'{val:.3f}', ha='center', va='center',
+                        fontsize=7, color=color)
+
+    fig.colorbar(im, ax=axes, label='p-value', shrink=0.8)
+    fig.tight_layout()
+    fig.savefig(output_dir / 'granger_causality_heatmap.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] Granger因果热力图已保存: {output_dir / 'granger_causality_heatmap.png'}")
+
+
+def _plot_obv_with_divergences(
+    df: pd.DataFrame,
+    obv: pd.Series,
+    divergences: pd.DataFrame,
+    output_dir: Path,
+):
+    """图4: OBV vs 价格 + 背离标记"""
+    fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(16, 10), sharex=True,
+                                    gridspec_kw={'height_ratios': [2, 1]})
+
+    # 上图: 价格
+    ax1.plot(df.index, df['close'], color='black', linewidth=0.8, label='BTC 收盘价')
+    ax1.set_ylabel('价格 (USDT)', fontsize=12)
+    ax1.set_title('BTC 价格与OBV背离分析', fontsize=14)
+    ax1.set_yscale('log')
+    ax1.grid(True, alpha=0.3, which='both')
+
+    # 下图: OBV
+    ax2.plot(obv.index, obv.values, color='steelblue', linewidth=0.8, label='OBV')
+    ax2.set_ylabel('OBV', fontsize=12)
+    ax2.set_xlabel('日期', fontsize=12)
+    ax2.grid(True, alpha=0.3)
+
+    # 标记背离
+    if not divergences.empty:
+        bearish = divergences[divergences['type'] == 'bearish']
+        bullish = divergences[divergences['type'] == 'bullish']
+
+        if not bearish.empty:
+            ax1.scatter(bearish['date'], bearish['price'],
+                        marker='v', s=60, color='red', zorder=5,
+                        label=f'顶背离 ({len(bearish)}次)', alpha=0.7)
+            for _, row in bearish.iterrows():
+                ax2.axvline(row['date'], color='red', alpha=0.2, linewidth=0.5)
+
+        if not bullish.empty:
+            ax1.scatter(bullish['date'], bullish['price'],
+                        marker='^', s=60, color='green', zorder=5,
+                        label=f'底背离 ({len(bullish)}次)', alpha=0.7)
+            for _, row in bullish.iterrows():
+                ax2.axvline(row['date'], color='green', alpha=0.2, linewidth=0.5)
+
+    ax1.legend(fontsize=10, loc='upper left')
+    ax2.legend(fontsize=10, loc='upper left')
+
+    fig.tight_layout()
+    fig.savefig(output_dir / 'obv_divergence.png', dpi=150, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  [图] OBV背离分析已保存: {output_dir / 'obv_divergence.png'}")
+
+
+# =============================================================================
+#  主入口
+# =============================================================================
+
+def run_volume_price_analysis(df: pd.DataFrame, output_dir: str = "output") -> Dict:
+    """成交量-价格关系与OBV分析 — 主入口函数
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        由 data_loader.load_daily() 返回的日线数据，含 DatetimeIndex,
+        close, volume, taker_buy_volume 等列
+    output_dir : str
+        图表输出目录
+
+    Returns
+    -------
+    dict
+        分析结果摘要
+    """
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    print("=" * 60)
+    print("  BTC 成交量-价格关系分析")
+    print("=" * 60)
+
+    # 准备数据
+    prices = df['close'].dropna()
+    volume = df['volume'].dropna()
+    log_ret = np.log(prices / prices.shift(1)).dropna()
+
+    # 计算taker买入比例
+    taker_buy_ratio = (df['taker_buy_volume'] / df['volume'].replace(0, np.nan)).dropna()
+
+    print(f"\n数据范围: {df.index[0].date()} ~ {df.index[-1].date()}")
+    print(f"样本数量: {len(df)}")
+
+    # ---- 步骤1: Spearman相关性 ----
+    print("\n--- Spearman 成交量-|收益率| 相关性 ---")
+    spearman_result = _spearman_volume_returns(volume, log_ret)
+    print(f"  Spearman ρ:  {spearman_result['correlation']:.4f}")
+    print(f"  p-value:     {spearman_result['p_value']:.2e}")
+    print(f"  样本量:       {spearman_result['n_samples']}")
+    if spearman_result['p_value'] < 0.01:
+        print("  >> 结论: 成交量与|收益率|存在显著正相关（成交量放大伴随大幅波动）")
+    else:
+        print("  >> 结论: 成交量与|收益率|相关性不显著")
+
+    # ---- 步骤2: Taker买入比例领先分析 ----
+    print("\n--- Taker买入比例领先分析 ---")
+    lead_lag_df = _taker_buy_ratio_lead_lag(taker_buy_ratio, log_ret, max_lag=20)
+    if not lead_lag_df.empty:
+        sig_lags = lead_lag_df[lead_lag_df['significant']]
+        if not sig_lags.empty:
+            print(f"  显著领先期 (p<0.05):")
+            for _, row in sig_lags.iterrows():
+                print(f"    lag={int(row['lag']):>2d}天: ρ={row['correlation']:.4f}, p={row['p_value']:.4f}")
+            best = sig_lags.loc[sig_lags['correlation'].abs().idxmax()]
+            print(f"  >> 最强领先信号: lag={int(best['lag'])}天, ρ={best['correlation']:.4f}")
+        else:
+            print("  未发现显著的领先关系 (所有lag的p>0.05)")
+    else:
+        print("  数据不足，无法进行领先-滞后分析")
+
+    # ---- 步骤3: Granger因果检验 ----
+    print("\n--- Granger 因果检验 (双向, lag 1-10) ---")
+    granger_results = _granger_causality(volume, log_ret, max_lag=10)
+
+    for direction, label in [('volume_to_returns', '成交量→收益率'),
+                              ('returns_to_volume', '收益率→成交量')]:
+        df_gc = granger_results[direction]
+        if not df_gc.empty:
+            # 使用SSR F-test的p值
+            sig_gc = df_gc[df_gc['ssr_ftest_pval'] < 0.05]
+            if not sig_gc.empty:
+                print(f"  {label}: 在以下滞后阶显著 (SSR F-test p<0.05):")
+                for _, row in sig_gc.iterrows():
+                    print(f"    lag={int(row['lag'])}: p={row['ssr_ftest_pval']:.4f}")
+            else:
+                print(f"  {label}: 在所有滞后阶均不显著")
+        else:
+            print(f"  {label}: 检验失败")
+
+    # ---- 步骤4: OBV计算与背离检测 ----
+    print("\n--- OBV 与 价格背离分析 ---")
+    obv = _compute_obv(df)
+    divergences = _detect_obv_divergences(prices, obv, window=60, lookback=5)
+
+    if not divergences.empty:
+        bearish_count = len(divergences[divergences['type'] == 'bearish'])
+        bullish_count = len(divergences[divergences['type'] == 'bullish'])
+        print(f"  检测到 {len(divergences)} 个背离信号:")
+        print(f"    顶背离 (看跌): {bearish_count} 次")
+        print(f"    底背离 (看涨): {bullish_count} 次")
+
+        # 最近的背离
+        recent = divergences.tail(5)
+        print(f"  最近 {len(recent)} 个背离:")
+        for _, row in recent.iterrows():
+            div_type = '顶背离' if row['type'] == 'bearish' else '底背离'
+            date_str = row['date'].strftime('%Y-%m-%d')
+            print(f"    {date_str}: {div_type}, 价格=${row['price']:,.0f}")
+    else:
+        bearish_count = 0
+        bullish_count = 0
+        print("  未检测到明显的OBV-价格背离")
+
+    # ---- 步骤5: 生成可视化 ----
+    print("\n--- 生成可视化图表 ---")
+    _plot_volume_return_scatter(volume, log_ret, spearman_result, output_dir)
+    _plot_lead_lag_correlation(lead_lag_df, output_dir)
+    _plot_granger_heatmap(granger_results, output_dir)
+    _plot_obv_with_divergences(df, obv, divergences, output_dir)
+
+    print("\n" + "=" * 60)
+    print("  成交量-价格分析完成")
+    print("=" * 60)
+
+    # 返回结果摘要
+    return {
+        'spearman': spearman_result,
+        'lead_lag': {
+            'significant_lags': lead_lag_df[lead_lag_df['significant']]['lag'].tolist()
+            if not lead_lag_df.empty else [],
+        },
+        'granger': {
+            'volume_to_returns_sig_lags': granger_results['volume_to_returns'][
+                granger_results['volume_to_returns']['ssr_ftest_pval'] < 0.05
+            ]['lag'].tolist() if not granger_results['volume_to_returns'].empty else [],
+            'returns_to_volume_sig_lags': granger_results['returns_to_volume'][
+                granger_results['returns_to_volume']['ssr_ftest_pval'] < 0.05
+            ]['lag'].tolist() if not granger_results['returns_to_volume'].empty else [],
+        },
+        'obv_divergences': {
+            'total': len(divergences),
+            'bearish': bearish_count,
+            'bullish': bullish_count,
+        },
+    }
+
+
+if __name__ == '__main__':
+    from data_loader import load_daily
+    df = load_daily()
+    results = run_volume_price_analysis(df, output_dir='../output/volume_price')
diff --git a/src/wavelet_analysis.py b/src/wavelet_analysis.py
new file mode 100644
index 0000000..0795a6d
--- /dev/null
+++ b/src/wavelet_analysis.py
@@ -0,0 +1,817 @@
+"""小波变换分析模块 - CWT时频分析、全局小波谱、显著性检验、周期强度追踪"""
+
+import matplotlib
+matplotlib.use('Agg')
+
+import numpy as np
+import pandas as pd
+import pywt
+import matplotlib.pyplot as plt
+import matplotlib.dates as mdates
+from matplotlib.colors import LogNorm
+from scipy.signal import detrend
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+from src.preprocessing import log_returns, standardize
+
+
+# ============================================================================
+# 核心参数配置
+# ============================================================================
+
+WAVELET = 'cmor1.5-1.0'          # 复Morlet小波 (bandwidth=1.5, center_freq=1.0)
+MIN_PERIOD = 7                     # 最小周期（天）
+MAX_PERIOD = 1500                  # 最大周期（天）
+NUM_SCALES = 256                   # 尺度数量
+KEY_PERIODS = [30, 90, 365, 1400]  # 关键追踪周期（天）
+N_SURROGATES = 1000                # Monte Carlo替代数据数量
+SIGNIFICANCE_LEVEL = 0.95          # 显著性水平
+DPI = 150                          # 图像分辨率
+
+
+# ============================================================================
+# 辅助函数：尺度与周期转换
+# ============================================================================
+
+def _periods_to_scales(periods: np.ndarray, wavelet: str, dt: float = 1.0) -> np.ndarray:
+    """将周期（天）转换为CWT尺度参数
+
+    Parameters
+    ----------
+    periods : np.ndarray
+        目标周期数组（天）
+    wavelet : str
+        小波名称
+    dt : float
+        采样间隔（天）
+
+    Returns
+    -------
+    np.ndarray
+        对应的尺度数组
+    """
+    central_freq = pywt.central_frequency(wavelet)
+    scales = central_freq * periods / dt
+    return scales
+
+
+def _scales_to_periods(scales: np.ndarray, wavelet: str, dt: float = 1.0) -> np.ndarray:
+    """将CWT尺度参数转换为周期（天）"""
+    central_freq = pywt.central_frequency(wavelet)
+    periods = scales * dt / central_freq
+    return periods
+
+
+# ============================================================================
+# 核心计算：连续小波变换
+# ============================================================================
+
+def compute_cwt(
+    signal: np.ndarray,
+    dt: float = 1.0,
+    wavelet: str = WAVELET,
+    min_period: float = MIN_PERIOD,
+    max_period: float = MAX_PERIOD,
+    num_scales: int = NUM_SCALES,
+) -> Tuple[np.ndarray, np.ndarray, np.ndarray]:
+    """计算连续小波变换（CWT）
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        输入时间序列（建议已标准化）
+    dt : float
+        采样间隔（天）
+    wavelet : str
+        小波函数名称
+    min_period : float
+        最小分析周期（天）
+    max_period : float
+        最大分析周期（天）
+    num_scales : int
+        尺度分辨率
+
+    Returns
+    -------
+    coeffs : np.ndarray
+        CWT系数矩阵 (n_scales, n_times)
+    periods : np.ndarray
+        对应周期数组（天）
+    scales : np.ndarray
+        尺度数组
+    """
+    # 生成对数等间隔的周期序列
+    periods = np.logspace(np.log10(min_period), np.log10(max_period), num_scales)
+    scales = _periods_to_scales(periods, wavelet, dt)
+
+    # 执行CWT
+    coeffs, _ = pywt.cwt(signal, scales, wavelet, sampling_period=dt)
+
+    return coeffs, periods, scales
+
+
+def compute_power_spectrum(coeffs: np.ndarray) -> np.ndarray:
+    """计算小波功率谱 |W(s,t)|^2
+
+    Parameters
+    ----------
+    coeffs : np.ndarray
+        CWT系数矩阵
+
+    Returns
+    -------
+    np.ndarray
+        功率谱矩阵
+    """
+    return np.abs(coeffs) ** 2
+
+
+# ============================================================================
+# 影响锥（Cone of Influence）
+# ============================================================================
+
+def compute_coi(n: int, dt: float = 1.0, wavelet: str = WAVELET) -> np.ndarray:
+    """计算影响锥（COI）边界
+
+    影响锥标识边界效应显著的区域。对于Morlet小波，
+    COI对应于e-folding时间 sqrt(2) * scale。
+
+    Parameters
+    ----------
+    n : int
+        时间序列长度
+    dt : float
+        采样间隔
+    wavelet : str
+        小波名称
+
+    Returns
+    -------
+    coi_periods : np.ndarray
+        每个时间点对应的COI周期边界（天）
+    """
+    # e-folding time for Morlet wavelet: sqrt(2) * s
+    # COI period = sqrt(2) * s * dt / central_freq
+    central_freq = pywt.central_frequency(wavelet)
+    # 从两端递增到中间
+    t = np.arange(n) * dt
+    coi_time = np.minimum(t, (n - 1) * dt - t)
+    # 转换为周期：COI_period = sqrt(2) * coi_time * central_freq (反推)
+    # 实际上 COI boundary in period space: period = sqrt(2) * dt * index / central_freq * central_freq
+    # 简化: coi_period = sqrt(2) * coi_time
+    coi_periods = np.sqrt(2) * coi_time
+    # 最小值截断到最小周期
+    coi_periods = np.maximum(coi_periods, dt)
+    return coi_periods
+
+
+# ============================================================================
+# AR(1) 红噪声显著性检验（Monte Carlo方法）
+# ============================================================================
+
+def _estimate_ar1(signal: np.ndarray) -> float:
+    """估计信号的AR(1)自相关系数（lag-1 autocorrelation）
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        输入时间序列
+
+    Returns
+    -------
+    float
+        lag-1自相关系数
+    """
+    n = len(signal)
+    x = signal - np.mean(signal)
+    c0 = np.sum(x ** 2) / n
+    c1 = np.sum(x[:-1] * x[1:]) / n
+    if c0 == 0:
+        return 0.0
+    alpha = c1 / c0
+    return np.clip(alpha, -0.999, 0.999)
+
+
+def _generate_ar1_surrogate(n: int, alpha: float, variance: float) -> np.ndarray:
+    """生成AR(1)红噪声替代数据
+
+    x(t) = alpha * x(t-1) + noise
+
+    Parameters
+    ----------
+    n : int
+        序列长度
+    alpha : float
+        AR(1)系数
+    variance : float
+        原始信号方差
+
+    Returns
+    -------
+    np.ndarray
+        AR(1)替代序列
+    """
+    noise_std = np.sqrt(variance * (1 - alpha ** 2))
+    noise = np.random.normal(0, noise_std, n)
+    surrogate = np.zeros(n)
+    surrogate[0] = noise[0]
+    for i in range(1, n):
+        surrogate[i] = alpha * surrogate[i - 1] + noise[i]
+    return surrogate
+
+
+def significance_test_monte_carlo(
+    signal: np.ndarray,
+    periods: np.ndarray,
+    dt: float = 1.0,
+    wavelet: str = WAVELET,
+    n_surrogates: int = N_SURROGATES,
+    significance_level: float = SIGNIFICANCE_LEVEL,
+) -> Tuple[np.ndarray, np.ndarray]:
+    """AR(1)红噪声Monte Carlo显著性检验
+
+    生成大量AR(1)替代数据，计算其全局小波谱分布，
+    得到指定置信水平的阈值。
+
+    Parameters
+    ----------
+    signal : np.ndarray
+        原始时间序列
+    periods : np.ndarray
+        CWT分析的周期数组
+    dt : float
+        采样间隔
+    wavelet : str
+        小波名称
+    n_surrogates : int
+        替代数据数量
+    significance_level : float
+        显著性水平（如0.95对应95%置信度）
+
+    Returns
+    -------
+    significance_threshold : np.ndarray
+        各周期的显著性阈值
+    surrogate_spectra : np.ndarray
+        所有替代数据的全局谱 (n_surrogates, n_periods)
+    """
+    n = len(signal)
+    alpha = _estimate_ar1(signal)
+    variance = np.var(signal)
+    scales = _periods_to_scales(periods, wavelet, dt)
+
+    print(f"  AR(1) 系数 alpha = {alpha:.4f}")
+    print(f"  生成 {n_surrogates} 个AR(1)替代数据进行Monte Carlo检验...")
+
+    surrogate_global_spectra = np.zeros((n_surrogates, len(periods)))
+
+    for i in range(n_surrogates):
+        surrogate = _generate_ar1_surrogate(n, alpha, variance)
+        coeffs_surr, _ = pywt.cwt(surrogate, scales, wavelet, sampling_period=dt)
+        power_surr = np.abs(coeffs_surr) ** 2
+        surrogate_global_spectra[i, :] = np.mean(power_surr, axis=1)
+
+        if (i + 1) % 200 == 0:
+            print(f"    Monte Carlo 进度: {i + 1}/{n_surrogates}")
+
+    # 计算指定分位数作为显著性阈值
+    percentile = significance_level * 100
+    significance_threshold = np.percentile(surrogate_global_spectra, percentile, axis=0)
+
+    return significance_threshold, surrogate_global_spectra
+
+
+# ============================================================================
+# 全局小波谱
+# ============================================================================
+
+def compute_global_wavelet_spectrum(power: np.ndarray) -> np.ndarray:
+    """计算全局小波谱（时间平均功率）
+
+    Parameters
+    ----------
+    power : np.ndarray
+        功率谱矩阵 (n_scales, n_times)
+
+    Returns
+    -------
+    np.ndarray
+        全局小波谱 (n_scales,)
+    """
+    return np.mean(power, axis=1)
+
+
+def find_significant_periods(
+    global_spectrum: np.ndarray,
+    significance_threshold: np.ndarray,
+    periods: np.ndarray,
+) -> List[Dict]:
+    """找出超过显著性阈值的周期峰
+
+    在全局谱中检测超过95%置信水平的局部极大值。
+
+    Parameters
+    ----------
+    global_spectrum : np.ndarray
+        全局小波谱
+    significance_threshold : np.ndarray
+        显著性阈值
+    periods : np.ndarray
+        周期数组
+
+    Returns
+    -------
+    list of dict
+        显著周期列表，每项包含 period, power, threshold, ratio
+    """
+    # 找出超过阈值的区域
+    above_mask = global_spectrum > significance_threshold
+
+    significant = []
+    if not np.any(above_mask):
+        return significant
+
+    # 在超过阈值的连续区间内找峰值
+    diff = np.diff(above_mask.astype(int))
+    starts = np.where(diff == 1)[0] + 1
+    ends = np.where(diff == -1)[0] + 1
+
+    # 处理边界情况
+    if above_mask[0]:
+        starts = np.insert(starts, 0, 0)
+    if above_mask[-1]:
+        ends = np.append(ends, len(above_mask))
+
+    for s, e in zip(starts, ends):
+        segment = global_spectrum[s:e]
+        peak_idx = s + np.argmax(segment)
+        significant.append({
+            'period': float(periods[peak_idx]),
+            'power': float(global_spectrum[peak_idx]),
+            'threshold': float(significance_threshold[peak_idx]),
+            'ratio': float(global_spectrum[peak_idx] / significance_threshold[peak_idx]),
+        })
+
+    # 按功率降序排列
+    significant.sort(key=lambda x: x['power'], reverse=True)
+    return significant
+
+
+# ============================================================================
+# 关键周期功率时间演化
+# ============================================================================
+
+def extract_power_at_periods(
+    power: np.ndarray,
+    periods: np.ndarray,
+    key_periods: List[float] = None,
+) -> Dict[float, np.ndarray]:
+    """提取关键周期处的功率随时间变化
+
+    Parameters
+    ----------
+    power : np.ndarray
+        功率谱矩阵 (n_scales, n_times)
+    periods : np.ndarray
+        周期数组
+    key_periods : list of float
+        要追踪的关键周期（天）
+
+    Returns
+    -------
+    dict
+        {period: power_time_series} 映射
+    """
+    if key_periods is None:
+        key_periods = KEY_PERIODS
+
+    result = {}
+    for target_period in key_periods:
+        # 找到最接近目标周期的尺度索引
+        idx = np.argmin(np.abs(periods - target_period))
+        actual_period = periods[idx]
+        result[target_period] = {
+            'power': power[idx, :],
+            'actual_period': float(actual_period),
+        }
+
+    return result
+
+
+# ============================================================================
+# 可视化模块
+# ============================================================================
+
+def plot_cwt_scalogram(
+    power: np.ndarray,
+    periods: np.ndarray,
+    dates: pd.DatetimeIndex,
+    coi_periods: np.ndarray,
+    output_path: Path,
+    title: str = 'BTC/USDT CWT 时频功率谱（Scalogram）',
+) -> None:
+    """绘制CWT scalogram（时间-周期-功率热力图）含影响锥
+
+    Parameters
+    ----------
+    power : np.ndarray
+        功率谱矩阵
+    periods : np.ndarray
+        周期数组（天）
+    dates : pd.DatetimeIndex
+        时间索引
+    coi_periods : np.ndarray
+        影响锥边界
+    output_path : Path
+        输出文件路径
+    title : str
+        图标题
+    """
+    fig, ax = plt.subplots(figsize=(16, 8))
+
+    # 使用对数归一化的伪彩色图
+    t = mdates.date2num(dates.to_pydatetime())
+    T, P = np.meshgrid(t, periods)
+
+    # 功率取对数以获得更好的视觉效果
+    power_plot = power.copy()
+    power_plot[power_plot <= 0] = np.min(power_plot[power_plot > 0]) * 0.1
+
+    im = ax.pcolormesh(
+        T, P, power_plot,
+        cmap='jet',
+        norm=LogNorm(vmin=np.percentile(power_plot, 5), vmax=np.percentile(power_plot, 99)),
+        shading='auto',
+    )
+
+    # 绘制影响锥（COI）
+    coi_t = mdates.date2num(dates.to_pydatetime())
+    ax.fill_between(
+        coi_t, coi_periods, periods[-1] * 1.1,
+        alpha=0.3, facecolor='white', hatch='x',
+        label='影响锥 (COI)',
+    )
+
+    # Y轴对数刻度
+    ax.set_yscale('log')
+    ax.set_ylim(periods[0], periods[-1])
+    ax.invert_yaxis()
+
+    # 标记关键周期
+    for kp in KEY_PERIODS:
+        if periods[0] <= kp <= periods[-1]:
+            ax.axhline(y=kp, color='white', linestyle='--', alpha=0.6, linewidth=0.8)
+            ax.text(t[-1] + (t[-1] - t[0]) * 0.01, kp, f'{kp}d',
+                    color='white', fontsize=8, va='center')
+
+    # 格式化
+    ax.xaxis_date()
+    ax.xaxis.set_major_locator(mdates.YearLocator())
+    ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y'))
+    ax.set_xlabel('日期', fontsize=12)
+    ax.set_ylabel('周期（天）', fontsize=12)
+    ax.set_title(title, fontsize=14)
+
+    cbar = fig.colorbar(im, ax=ax, pad=0.08, shrink=0.8)
+    cbar.set_label('功率（对数尺度）', fontsize=10)
+
+    ax.legend(loc='lower right', fontsize=9)
+    plt.tight_layout()
+    fig.savefig(output_path, dpi=DPI, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  Scalogram 已保存: {output_path}")
+
+
+def plot_global_spectrum(
+    global_spectrum: np.ndarray,
+    significance_threshold: np.ndarray,
+    periods: np.ndarray,
+    significant_periods: List[Dict],
+    output_path: Path,
+    title: str = 'BTC/USDT 全局小波谱 + 95%显著性',
+) -> None:
+    """绘制全局小波谱及95%红噪声显著性阈值
+
+    Parameters
+    ----------
+    global_spectrum : np.ndarray
+        全局小波谱
+    significance_threshold : np.ndarray
+        95%显著性阈值
+    periods : np.ndarray
+        周期数组
+    significant_periods : list of dict
+        显著周期信息
+    output_path : Path
+        输出路径
+    title : str
+        图标题
+    """
+    fig, ax = plt.subplots(figsize=(10, 7))
+
+    ax.plot(periods, global_spectrum, 'b-', linewidth=1.5, label='全局小波谱')
+    ax.plot(periods, significance_threshold, 'r--', linewidth=1.2, label='95% 红噪声显著性')
+
+    # 填充显著区域
+    above = global_spectrum > significance_threshold
+    ax.fill_between(
+        periods, global_spectrum, significance_threshold,
+        where=above, alpha=0.25, color='blue', label='显著区域',
+    )
+
+    # 标注显著周期峰值
+    for sp in significant_periods:
+        ax.annotate(
+            f"{sp['period']:.0f}d\n({sp['ratio']:.1f}x)",
+            xy=(sp['period'], sp['power']),
+            xytext=(sp['period'] * 1.3, sp['power'] * 1.2),
+            fontsize=9,
+            arrowprops=dict(arrowstyle='->', color='darkblue', lw=1.0),
+            color='darkblue',
+            fontweight='bold',
+        )
+
+    # 标记关键周期
+    for kp in KEY_PERIODS:
+        if periods[0] <= kp <= periods[-1]:
+            ax.axvline(x=kp, color='gray', linestyle=':', alpha=0.5, linewidth=0.8)
+            ax.text(kp, ax.get_ylim()[1] * 0.95, f'{kp}d',
+                    ha='center', va='top', fontsize=8, color='gray')
+
+    ax.set_xscale('log')
+    ax.set_yscale('log')
+    ax.set_xlabel('周期（天）', fontsize=12)
+    ax.set_ylabel('功率', fontsize=12)
+    ax.set_title(title, fontsize=14)
+    ax.legend(loc='upper left', fontsize=10)
+    ax.grid(True, alpha=0.3, which='both')
+
+    plt.tight_layout()
+    fig.savefig(output_path, dpi=DPI, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  全局小波谱 已保存: {output_path}")
+
+
+def plot_key_period_power(
+    key_power: Dict[float, Dict],
+    dates: pd.DatetimeIndex,
+    coi_periods: np.ndarray,
+    output_path: Path,
+    title: str = 'BTC/USDT 关键周期功率时间演化',
+) -> None:
+    """绘制关键周期处的功率随时间变化
+
+    Parameters
+    ----------
+    key_power : dict
+        extract_power_at_periods 的返回结果
+    dates : pd.DatetimeIndex
+        时间索引
+    coi_periods : np.ndarray
+        影响锥边界
+    output_path : Path
+        输出路径
+    title : str
+        图标题
+    """
+    n_periods = len(key_power)
+    fig, axes = plt.subplots(n_periods, 1, figsize=(16, 3.5 * n_periods), sharex=True)
+    if n_periods == 1:
+        axes = [axes]
+
+    colors = ['#1f77b4', '#ff7f0e', '#2ca02c', '#d62728', '#9467bd', '#8c564b']
+
+    for i, (target_period, info) in enumerate(key_power.items()):
+        ax = axes[i]
+        power_ts = info['power']
+        actual_period = info['actual_period']
+
+        # 标记COI内外区域
+        in_coi = coi_periods < actual_period  # COI内=不可靠
+        reliable_power = power_ts.copy()
+        reliable_power[in_coi] = np.nan
+        unreliable_power = power_ts.copy()
+        unreliable_power[~in_coi] = np.nan
+
+        color = colors[i % len(colors)]
+        ax.plot(dates, reliable_power, color=color, linewidth=1.0,
+                label=f'{target_period}d (实际 {actual_period:.1f}d)')
+        ax.plot(dates, unreliable_power, color=color, linewidth=0.8,
+                alpha=0.3, linestyle='--', label='COI 内（不可靠）')
+
+        # 对功率做平滑以显示趋势
+        window = max(int(target_period / 5), 7)
+        smoothed = pd.Series(power_ts).rolling(window=window, center=True, min_periods=1).mean()
+        ax.plot(dates, smoothed, color='black', linewidth=1.5, alpha=0.6, label=f'平滑 ({window}d)')
+
+        ax.set_ylabel('功率', fontsize=10)
+        ax.set_title(f'周期 ~ {target_period} 天', fontsize=11)
+        ax.legend(loc='upper right', fontsize=8, ncol=3)
+        ax.grid(True, alpha=0.3)
+
+    axes[-1].xaxis.set_major_locator(mdates.YearLocator())
+    axes[-1].xaxis.set_major_formatter(mdates.DateFormatter('%Y'))
+    axes[-1].set_xlabel('日期', fontsize=12)
+
+    fig.suptitle(title, fontsize=14, y=1.01)
+    plt.tight_layout()
+    fig.savefig(output_path, dpi=DPI, bbox_inches='tight')
+    plt.close(fig)
+    print(f"  关键周期功率图 已保存: {output_path}")
+
+
+# ============================================================================
+# 主入口函数
+# ============================================================================
+
+def run_wavelet_analysis(
+    df: pd.DataFrame,
+    output_dir: str,
+    wavelet: str = WAVELET,
+    min_period: float = MIN_PERIOD,
+    max_period: float = MAX_PERIOD,
+    num_scales: int = NUM_SCALES,
+    key_periods: List[float] = None,
+    n_surrogates: int = N_SURROGATES,
+) -> Dict:
+    """执行完整的小波变换分析流程
+
+    Parameters
+    ----------
+    df : pd.DataFrame
+        日线 DataFrame，需包含 'close' 列和 DatetimeIndex
+    output_dir : str
+        输出目录路径
+    wavelet : str
+        小波函数名
+    min_period : float
+        最小分析周期（天）
+    max_period : float
+        最大分析周期（天）
+    num_scales : int
+        尺度分辨率
+    key_periods : list of float
+        要追踪的关键周期
+    n_surrogates : int
+        Monte Carlo替代数据数量
+
+    Returns
+    -------
+    dict
+        包含所有分析结果的字典:
+        - coeffs: CWT系数矩阵
+        - power: 功率谱矩阵
+        - periods: 周期数组
+        - global_spectrum: 全局小波谱
+        - significance_threshold: 95%显著性阈值
+        - significant_periods: 显著周期列表
+        - key_period_power: 关键周期功率演化
+        - ar1_alpha: AR(1)系数
+        - dates: 时间索引
+    """
+    if key_periods is None:
+        key_periods = KEY_PERIODS
+
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    # ---- 1. 数据准备 ----
+    print("=" * 70)
+    print("小波变换分析 (Continuous Wavelet Transform)")
+    print("=" * 70)
+
+    prices = df['close'].dropna()
+    dates = prices.index
+    n = len(prices)
+
+    print(f"\n[数据概况]")
+    print(f"  时间范围: {dates[0].strftime('%Y-%m-%d')} ~ {dates[-1].strftime('%Y-%m-%d')}")
+    print(f"  样本数: {n}")
+    print(f"  小波函数: {wavelet}")
+    print(f"  分析周期范围: {min_period}d ~ {max_period}d")
+
+    # 对数收益率 + 标准化，作为CWT输入信号
+    log_ret = log_returns(prices)
+    signal = standardize(log_ret).values
+    signal_dates = log_ret.index
+
+    # 处理可能的NaN/Inf
+    valid_mask = np.isfinite(signal)
+    if not np.all(valid_mask):
+        print(f"  警告: 移除 {np.sum(~valid_mask)} 个非有限值")
+        signal = signal[valid_mask]
+        signal_dates = signal_dates[valid_mask]
+
+    n_signal = len(signal)
+    print(f"  CWT输入信号长度: {n_signal}")
+
+    # ---- 2. 连续小波变换 ----
+    print(f"\n[CWT 计算]")
+    print(f"  尺度数量: {num_scales}")
+
+    coeffs, periods, scales = compute_cwt(
+        signal, dt=1.0, wavelet=wavelet,
+        min_period=min_period, max_period=max_period, num_scales=num_scales,
+    )
+    power = compute_power_spectrum(coeffs)
+
+    print(f"  系数矩阵形状: {coeffs.shape}")
+    print(f"  周期范围: {periods[0]:.1f}d ~ {periods[-1]:.1f}d")
+
+    # ---- 3. 影响锥 ----
+    coi_periods = compute_coi(n_signal, dt=1.0, wavelet=wavelet)
+
+    # ---- 4. 全局小波谱 ----
+    print(f"\n[全局小波谱]")
+    global_spectrum = compute_global_wavelet_spectrum(power)
+
+    # ---- 5. AR(1) 红噪声 Monte Carlo 显著性检验 ----
+    print(f"\n[Monte Carlo 显著性检验]")
+    significance_threshold, surrogate_spectra = significance_test_monte_carlo(
+        signal, periods, dt=1.0, wavelet=wavelet,
+        n_surrogates=n_surrogates, significance_level=SIGNIFICANCE_LEVEL,
+    )
+
+    # ---- 6. 找出显著周期 ----
+    significant_periods = find_significant_periods(
+        global_spectrum, significance_threshold, periods,
+    )
+
+    print(f"\n[显著周期（超过95%置信水平）]")
+    if significant_periods:
+        for sp in significant_periods:
+            days = sp['period']
+            years = days / 365.25
+            print(f"  * {days:7.0f} 天 ({years:5.2f} 年) | "
+                  f"功率={sp['power']:.4f} | 阈值={sp['threshold']:.4f} | "
+                  f"比值={sp['ratio']:.2f}x")
+    else:
+        print("  未发现超过95%显著性水平的周期")
+
+    # ---- 7. 关键周期功率时间演化 ----
+    print(f"\n[关键周期功率追踪]")
+    key_power = extract_power_at_periods(power, periods, key_periods)
+    for kp, info in key_power.items():
+        print(f"  {kp}d -> 实际匹配周期: {info['actual_period']:.1f}d, "
+              f"平均功率: {np.mean(info['power']):.4f}")
+
+    # ---- 8. 可视化 ----
+    print(f"\n[生成图表]")
+
+    # 8.1 CWT Scalogram
+    plot_cwt_scalogram(
+        power, periods, signal_dates, coi_periods,
+        output_dir / 'wavelet_scalogram.png',
+    )
+
+    # 8.2 全局小波谱 + 显著性
+    plot_global_spectrum(
+        global_spectrum, significance_threshold, periods, significant_periods,
+        output_dir / 'wavelet_global_spectrum.png',
+    )
+
+    # 8.3 关键周期功率演化
+    plot_key_period_power(
+        key_power, signal_dates, coi_periods,
+        output_dir / 'wavelet_key_periods.png',
+    )
+
+    # ---- 9. 汇总结果 ----
+    ar1_alpha = _estimate_ar1(signal)
+
+    results = {
+        'coeffs': coeffs,
+        'power': power,
+        'periods': periods,
+        'scales': scales,
+        'global_spectrum': global_spectrum,
+        'significance_threshold': significance_threshold,
+        'significant_periods': significant_periods,
+        'key_period_power': key_power,
+        'coi_periods': coi_periods,
+        'ar1_alpha': ar1_alpha,
+        'dates': signal_dates,
+        'wavelet': wavelet,
+        'signal_length': n_signal,
+    }
+
+    print(f"\n{'=' * 70}")
+    print(f"小波分析完成。共生成 3 张图表，保存至: {output_dir}")
+    print(f"{'=' * 70}")
+
+    return results
+
+
+# ============================================================================
+# 独立运行入口
+# ============================================================================
+
+if __name__ == '__main__':
+    from src.data_loader import load_daily
+
+    print("加载 BTC/USDT 日线数据...")
+    df = load_daily()
+    print(f"数据加载完成: {len(df)} 行\n")
+
+    results = run_wavelet_analysis(df, output_dir='outputs/wavelet')