{
  "general_ecommerce": { "label": "通用电商", "width": 2048, "height": 2048, "ratio": "1:1", "safe_zone": "主体保留 8% 外边距", "text_policy": "少量必要文字" },
  "amazon": { "label": "Amazon", "width": 2048, "height": 2048, "ratio": "1:1", "safe_zone": "主图主体居中并占画面约 85%", "text_policy": "主图无文字、无道具、无水印" },
  "shopify": { "label": "Shopify", "width": 2048, "height": 2048, "ratio": "1:1", "safe_zone": "主体保留 8% 外边距", "text_policy": "按主题需要" },
  "instagram_feed": { "label": "Instagram Feed", "width": 2048, "height": 2560, "ratio": "4:5", "safe_zone": "关键信息距边缘至少 8%", "text_policy": "短标题；正文放 caption" },
  "instagram_story": { "label": "Instagram Story", "width": 1440, "height": 2560, "ratio": "9:16", "safe_zone": "顶部和底部各留 14%", "text_policy": "短标题和单一 CTA" },
  "tiktok": { "label": "TikTok", "width": 1440, "height": 2560, "ratio": "9:16", "safe_zone": "右侧留 15%，顶部/底部留 12%", "text_policy": "短标题，不生成平台 UI" },
  "facebook_ad": { "label": "Facebook Ad", "width": 2400, "height": 1256, "ratio": "1.91:1", "safe_zone": "核心主体与 CTA 居中 80%", "text_policy": "低文字密度" },
  "google_display": { "label": "Google Display", "width": 2400, "height": 1256, "ratio": "1.91:1", "safe_zone": "核心主体居中 80%", "text_policy": "不在生成图中渲染文字" },
  "linkedin_ad": { "label": "LinkedIn Ad", "width": 2400, "height": 1256, "ratio": "1.91:1", "safe_zone": "核心主体与 CTA 居中 80%", "text_policy": "专业、低文字密度" },
  "pinterest": { "label": "Pinterest", "width": 2000, "height": 3000, "ratio": "2:3", "safe_zone": "标题与主体距边缘至少 8%", "text_policy": "可读短标题" },
  "rednote": { "label": "小红书", "width": 2048, "height": 2560, "ratio": "4:5", "safe_zone": "关键信息距边缘至少 8%", "text_policy": "自然种草风；不生成平台 UI" },
  "x": { "label": "X", "width": 2400, "height": 1350, "ratio": "16:9", "safe_zone": "关键信息居中 80%", "text_policy": "短标题" }
}