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  "data_notes": {
    "kline_source": "腾讯/新浪日线（公开接口）",
    "universe": "内置大市值样本池（123 只有效标的，静态列表含幸存者偏差）",
    "method": "截面 MAD 去极值 + Z-score 加权合成，200 日线之上才入选"
  }
}