scoring_breakdown:[{"source":"word_of_mouth","score":77.1,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在\"价格实惠\"\"基础功能扎实\",适合预算有限的消费者。多数人认为按摩效果中规中矩,能缓解日常头皮疲劳,但振动力度偏弱,对深度放松需求者不够。部分用户反映电池仓盖容易松动,且单档模式选择少。整体好评率约85%,是入门级市场销量最高的产品之一。","source_count":0}},{"source":"objective","score":88.00000000000001,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.4,"review_count":42000,"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":42000,"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":["@省钱测评师阿花:不到200块能买到防水按摩梳,金稻真的卷。","@宝妈生活记:给孩子洗头时用,她说不痒了。"]}}]