```json { "stock_code": "002490", "stock_name": "山东墨龙", "market_type": "A", "analysis_date": "2026-01-21T22:28:19.312519", "structure_snapshot": { "structure_type": "uptrend", "ma200_position": "near", "phase": "middle", "key_levels": [ {"price": 9.28, "label": "近14日高点"}, {"price": 8.18, "label": "当前价格 / MA200"}, {"price": 7.40, "label": "MA20"}, {"price": 7.00, "label": "近14日低点"} ], "trend_description": "价格 8.18，位于 MA5(8.09) 上方 0.09 元，位于