scoring_breakdown:[{"source":"word_of_mouth","score":89.5,"weight":0.25,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在颜值高、轻便、分区合理。耳机袋位置顺手,面料有质感且耐脏。背负系统透气性一般,夏天略闷。整体好评率极高,天猫旗舰店评分4.9,被许多学生称为\"校园神包\",300元价位段销量冠军。","source_count":0}},{"source":"objective","score":96,"weight":0.2,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.8,"review_count":42000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":96,"weight":0.4,"confidence":1,"details":{"rating_avg":4.8,"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":["穿搭博主@阿栋学长:国家地理这款包太好搭了,卡其色配卫衣绝了。","户外博主@行摄匆匆:面料防水耐磨,耳机袋设计很走心。"]}}]