scoring_breakdown:[{"source":"word_of_mouth","score":78.6,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"综合京东、天猫等平台超15万条评价,美源发采快速黑发霜口碑稳定。用户称赞其\"上色快\"\"操作简单\"\"遮盖白发效果好\",尤其适合中老年用户。专业评测指出,其快速上色技术适合紧急补染,但持久度较短(约2-3周),且色号单一(仅自然黑)。缺点方面,部分用户反映染后发丝略干,需配合护发素;少数用户反馈上色不均匀(尤其是粗硬发质)。总体而言,是白发人群的应急首选。","source_count":4}},{"source":"objective","score":86,"weight":0.1,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.3,"review_count":150000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":86,"weight":0.25,"confidence":1,"details":{"rating_avg":4.3,"review_count":150000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["小红书博主@中老年穿搭指南:美源发采是我爸的染发神器,5分钟搞定白发,效果自然不假黑。","B站UP主@生活达人:美源发采适合紧急补染,但持久度一般,建议每周补一次。"]}}]