scoring_breakdown:[{"source":"word_of_mouth","score":79.19999999999999,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为性价比极高,36个触点覆盖面广,按摩时感觉酥麻舒适。不少评价提到使用后头皮屑减少、头发更蓬松。部分用户反馈振动噪音较大,且IPX5防水不能完全浸洗,清洁需注意。整体好评率94%,适合预算有限但追求功能全面的消费者。","source_count":0}},{"source":"objective","score":88.00000000000001,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.4,"review_count":35800,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":88,"weight":0.25,"confidence":1,"details":{"rating_avg":4.4,"review_count":35800,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"matched_count":2,"base_score":82,"weighted_score":80,"sample":["@省钱小能手李姐:一百多块买到的按摩梳,功能不输大牌,学生党闭眼入。","@头皮护理师老张:触点够多,对头皮穴位刺激比较均匀,适合日常保健。"]}}]