```json { "stock_code": "603131", "stock_name": "上海沪工", "market_type": "A", "analysis_date": "2026-02-25T06:13:18.324950", "structure_snapshot": { "structure_type": "downtrend", "ma200_position": "above", "phase": "unclear", "key_levels": [ {"price": 24.99, "label": "当前价格"}, {"price": 25.30, "label": "近14日高点"}, {"price": 27.77, "label": "MA60"}, {"price": 23.50, "label": "近14日低点"}, {"price": 24.76, "label": "MA20"}, {"price": 22.28, "