scoring_breakdown:[{"source":"word_of_mouth","score":87.1,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为K5 二代外观时尚、佩戴舒适,脉冲感适中,热敷功能在冬季非常实用。多数好评集中在\"缓解颈椎僵硬效果明显\"和\"噪音小、适合办公室使用\"。少数用户反馈脉冲强度对敏感皮肤略刺激,建议从低档开始适应。整体满意度高,复购率不错。","source_count":0}},{"source":"objective","score":92,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.6,"review_count":85000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":92,"weight":0.25,"confidence":1,"details":{"rating_avg":4.6,"review_count":85000,"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":["@科技美学:SKG K5二代在百元级脉冲按摩仪里综合体验最均衡。","@小鹿测评:热敷+脉冲的组合,午休15分钟脖子轻松很多。"]}}]