{"stock_code": "600884", "stock_name": "杉杉股份", "market_type": "A", "analysis_date": "2026-03-27T07:47:42.906696", "structure_snapshot": {"structure_type": "downtrend", "ma200_position": "above", "phase": "middle", "key_levels": [{"price": 13.09, "label": "颈线支撑（头肩顶形态）"}, {"price": 12.66, "label": "近期低点支撑"}, {"price": 12.44, "label": "MA200均线支撑"}, {"price": 13.94, "label": "MA20均线压力"}, {"price": 14.98, "label": "右肩高点压力"}, {"price": 16.28, "label": "头部高点压力"}], "trend_description": "价格13.64位于MA20（13