九口山 井田系列硬面笔记本（A5）

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• intros：{"brand_intro":"九口山是中国本土原创笔记本品牌，成立于2008年，总部位于上海。品牌以'山'为灵感，融合东方美学与现代设计，主打环保材料和手工装订。其产品在年轻消费者和文艺群体中拥有极高人气，被誉为'国货笔记本之光'。","product_intro":"井田系列采用布面硬封，封面印有几何图案，灵感源自中国传统田埂纹理。内页使用80g米黄色环保纸，护眼且书写顺滑。A5尺寸（14.8x21cm）适合日常携带，支持平摊180度书写。每本附赠主题贴纸，增加趣味性。","key_specs":["尺寸：14.8x21cm（A5）","页数：192页（空白/方格可选）","纸张：80g米黄色环保纸","装订：手工锁线装订，可平摊","封面：布面硬封，几何图案"]}
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