分屏对比机械键盘宣传海报

{
  "type": "高端产品广告海报",
  "subject": {
    "product": "[X75] 机械键盘",
    "category": "75% 紧凑型无线机械键盘",
    "color": "深藏青色搭配深鸭青色点缀",
    "material": "哑光塑料外壳搭配微圆角键帽",
    "branding": "键盘右上角小标牌",
    "layout badge": "贴在键盘右上边缘附近的米白色方形铭牌，印有黑色X符号"
  },
  "scene": {
    "setting": "温暖氛围感桌面搭建",
    "surface": "浅色实木书桌上铺着质感棕色皮革桌垫",
    "lighting": "来自右上方的电影感暖色定向光，柔和反光，奢华数码广告质感",
    "background": "暗部虚化的办公或桌面环境，右上角隐约可见咖啡杯与少量桌面杂物"
  },
  "composition": {
    "format": "分屏式前后对比促销构图",
    "panels": [
      {
        "position": "左半部分",
        "style": "朴素日常随手拍",
        "description": "键盘居中摆放在大张棕色桌垫上的俯拍微斜视角，明亮室内自然光，顶部露出浅色木桌边缘与显示器支架或银色设备局部，写实无修图产品照"
      },
      {
        "position": "右半部分",
        "style": "高级精修广告视觉",
        "description": "同一款键盘置于棕色皮革垫上，呈现更暗的曝光、更丰富的对比度、暖调高光、浅景深以及精细的商业修图质感"
      }
    ]
  },
  "text elements": {
    "headline": "[X75]",
    "subheadline": "MECHANICAL KEYBOARD",
    "tagline": "[简约而不简单，高效每一天。]",
    "feature line count": 4,
    "feature line items": [
      "75% 紧凑布局",
      "机械轴体",
      "多系统兼容",
      "长效续航"
    ]
  },
  "bottom feature cards": {
    "count": 4,
    "cards": [
      {
        "title": "75% 紧凑布局",
        "description": "保留高效区 节省桌面空间",
        "visual": "微倾斜键盘边角特写小图"
      },
      {
        "title": "机械轴体",
        "description": "段落感清晰 敲击反馈出色",
        "visual": "带半透明轴壳的机械轴体特写"
      },
      {
        "title": "多系统兼容",
        "description": "支持 Windows / macOS / iOS / Android",
        "visual": "4个系统平台图标: Windows、Apple、iOS、Android"
      },
      {
        "title": "长效续航",
        "description": "低功耗设计 持久陪伴每一刻",
        "visual": "标注有 [3000 mAh] 的电池图标"
      }
    ]
  },
  "style": {
    "design language": "高端电商主图海报视觉",
    "color palette": "深藏青、炭黑、古铜棕、暖琥珀高光、米白文字",
    "typography": "加粗现代无衬线产品名字体、小号大写英文副标题、清晰中文字体",
    "finish": "细腻商业精修、微暗角、高光质感、高级格调"
  }
}