intros：{"brand_intro":"Nank（南卡）是中国知名运动耳机品牌，专注于骨传导和开放式音频技术。品牌以\"高性价比运动装备\"为定位，产品线覆盖跑步、游泳、赛艇等场景。Nank在骨传导领域拥有多项自研专利，其Runner系列在运动爱好者中口碑极佳，被誉为\"骨传导性价比之王\"。","product_intro":"Runner Pro 4s 赛艇版采用第四代骨传导技术，搭载OT闭合防漏音3.0技术，有效减少漏音。IPX8级防水，可游泳佩戴，赛艇场景下完全无惧泼水与汗水。内置16GB内存，可脱离手机播放音乐，适合水上训练时使用。蓝牙5.3连接稳定，续航10小时，支持NFC快速配对。","key_specs":["连接方式：蓝牙5.3 + NFC","防水等级：IPX8（可游泳）","内置存储：16GB（约3000首歌曲）","续航时间：10小时","重量：28g","音频技术：骨传导+OT闭合防漏音3.0"]}
alt_products：[{"product_name":"Nank Runner Pro 4s 赛艇版","brand":"Nank","model":"NRP4s-R","price":899}]
kol_quotes：["\"Runner Pro 4s的16GB内存太实用了，划赛艇时完全不用带手机，轻便又自由。\"——户外运动博主@水上飞人","\"这个价位能买到IPX8防水+骨传导，Nank确实诚意满满。\"——数码评测@科技小新"]
scoring_breakdown：[{"source":"word_of_mouth","score":86.5,"weight":0.25,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户高度评价其内置存储功能，赛艇时无需携带手机，轻装上阵。防水性能实测在泳池和湖面划桨后依然正常工作。音质在骨传导耳机中属于上乘，人声清晰，低频有改善。佩戴舒适度好，长时间训练不夹头。缺点是充电接口为磁吸式，需专用线材，通用性稍差。整体性价比突出，是入门赛艇用户的首选。","source_count":0}},{"source":"objective","score":92,"weight":0.35,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.6,"review_count":19200,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":92,"weight":0.3,"confidence":1,"details":{"rating_avg":4.6,"review_count":19200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"Runner Pro 4s的16GB内存太实用了，划赛艇时完全不用带手机，轻便又自由。\"——户外运动博主@水上飞人","\"这个价位能买到IPX8防水+骨传导，Nank确实诚意满满。\"——数码评测@科技小新"]}}]