scoring_breakdown:[{"source":"word_of_mouth","score":80.6,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"多数用户认为性价比很高,仿真头皮效果逼真,近距离也看不出破绽。中老年买家反馈佩戴后自信心提升,且操作简单易上手。部分年轻用户觉得发丝混合材质手感略逊于全真发,但考虑到价格可以接受。少数评论提到发网边缘有轻微勒痕,建议选择大一号尺寸。","source_count":2}},{"source":"objective","score":90,"weight":0.1,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.5,"review_count":8930,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":90,"weight":0.25,"confidence":1,"details":{"rating_avg":4.5,"review_count":8930,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@银发穿搭博主王阿姨:这款假发我戴了半年,邻居都没发现是假的。","@美发师阿杰:仿真头皮工艺在这个价位段很良心。"]}}]