scoring_breakdown:[{"source":"word_of_mouth","score":83.2,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在\"性价比超高\"和\"适合新手\"。多数用户表示百元价位能达到不错的拉直效果,且不伤发。部分用户反映长期使用后面板涂层有轻微磨损,但考虑到价格仍认为值得。少数人指出负离子效果不如高端品牌明显。整体口碑极佳,销量巨大,是入门首选。","source_count":0}},{"source":"objective","score":90,"weight":0.1,"confidence":0.7,"details":{"dimension":"safety","rating_avg":4.5,"review_count":58000,"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":58000,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.15,"confidence":0.4,"details":{"kol_count":2,"scored_count":2,"matched_count":0,"base_score":82,"weighted_score":80,"sample":["\"百元价位能买到带负离子的直板夹,金稻真的卷。\"——@学生党美妆小圆","\"KD-388C是我用过最值的直板夹,拉直效果不输大牌。\"——@平价好物推荐官"]}}]