```json { "stock_code": "601899", "stock_name": "紫金矿业", "market_type": "A", "analysis_date": "2026-01-28T10:37:20.242027", "structure_snapshot": { "structure_type": "uptrend", "ma200_position": "near", "phase": "late", "key_levels": [ {"price": 42.58, "label": "近期最高价"}, {"price": 42.30, "label": "当前价格/MA200"}, {"price": 40.60, "label": "近期最低价"}, {"price": 39.53, "label": "MA5"}, {"price": 37.56, "label": "MA20"} ], "trend_descriptio