scoring_breakdown:[{"source":"word_of_mouth","score":93.5,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户高度评价其去角质效率,微晶玻璃滚轮能快速磨平厚茧,且不产生刺痛感。两档速度设计受到敏感肌用户欢迎,低速档适合初次使用。LED灯细节设计被赞实用,能精准处理脚后跟等死角。充电续航表现中规中矩,但充电时间较长(约8小时)。少数用户反映滚轮使用半年后需更换,配件价格略高。","source_count":0}},{"source":"objective","score":94,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.7,"review_count":72000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":94,"weight":0.25,"confidence":1,"details":{"rating_avg":4.7,"review_count":72000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"飞利浦这款修足器去死皮速度绝了,脚后跟像婴儿一样嫩。\"——美妆博主@小B","LED灯太贴心了,晚上也能看清脚底,推荐给细节控。\"——生活博主@大D"]}}]