scoring_breakdown:[{"source":"word_of_mouth","score":87.6,"weight":0.3,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户称赞机身轻巧,单手清洁楼梯非常轻松,性价比高。吸力对于日常灰尘和碎屑足够,但清理深层地毯稍显不足。电池续航在标准模式下够用,强力模式下降较快。整体评价为入门级楼梯吸尘器的优秀选择,适合预算有限或对重量敏感的用户。","source_count":0}},{"source":"objective","score":90,"weight":0.35,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.5,"review_count":78000,"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":78000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@省钱小能手:美的Q6不到1500元,楼梯清洁够用还轻,适合租房党。","@家电评测室:轻到可以忽略重量,楼梯清洁不累手,入门推荐。"]}}]