scoring_breakdown:[{"source":"word_of_mouth","score":79.19999999999999,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价呈现两极分化:正面评价集中在\"价格便宜,用着不心疼\"、\"规格齐全,全家都能用\"、\"清洁效果够用\"。负面反馈主要是\"刷丝容易分叉\"、\"钢丝芯偶尔生锈\"、\"手柄质感较粗糙\"。专业评测认为,小鹿妈妈在20元价位段表现合格,但刷丝耐久性不如国际品牌,建议频繁更换。整体而言,适合预算有限或初次尝试牙缝刷的用户,作为入门级产品性价比极高。","source_count":4}},{"source":"objective","score":90,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.5,"review_count":210000,"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":210000,"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":["测评博主@生活家阿飞:小鹿妈妈这个价格还要啥自行车?每天换一支都不心疼","小红书博主@省钱小能手:和欧乐B对比过,清洁力差不太多,价格只要三分之一,国货真香"]}}]