{
  "schemaVersion": 1,
  "verifiedAt": "2026-08-11",
  "evidence": {
    "TB-2024-01-26-MAIN-RATIO": {
      "title": "商品接口调整通知",
      "platform": "taobao_tmall",
      "sourceType": "official_announcement",
      "sourceUrl": "https://developer.alibaba.com/support/announcementDetail.htm?id=25721",
      "publishedAt": "2024-01-26",
      "verifiedAt": "2026-08-11",
      "verificationStatus": "official_verified",
      "scope": "商品发布与编辑主图比例；公告说明淘宝、天猫图片上传接口相同",
      "facts": [
        "1:1 主图仅可上传 1:1 图片",
        "3:4 主图仅支持上传 3:4 图片",
        "官方建议优先维护 1:1 主图"
      ]
    },
    "JD-RULE-CENTER": {
      "title": "京东规则中心",
      "platform": "jingdong",
      "sourceType": "official_rule_center",
      "sourceUrl": "https://rule.jd.com/",
      "verifiedAt": "2026-08-11",
      "verificationStatus": "official_entry_only",
      "scope": "官方规则入口；公开页面依赖 JavaScript，未取得可核验的通用商品图片具体数值"
    },
    "PDD-HELP-CENTER": {
      "title": "拼多多商家帮助中心",
      "platform": "pinduoduo",
      "sourceType": "official_help_center",
      "sourceUrl": "https://mms.pinduoduo.com/help-center",
      "verifiedAt": "2026-08-11",
      "verificationStatus": "official_entry_only",
      "scope": "官方帮助入口；未取得可公开核验的通用商品图片具体数值"
    }
  },
  "defaults": {
    "target": {
      "width": null,
      "height": null,
      "ratio": null,
      "safeZone": "主体保留 8% 外边距",
      "textPolicy": "仅使用用户确认或图片可见的简短中文事实，不生成价格、认证、功效、竞品标识或平台 UI",
      "background": "按资产用途选择；白底资产使用纯白背景"
    },
    "enforcement": {
      "ratio": "recommended",
      "dimensions": "recommended",
      "background": "recommended",
      "textPolicy": "recommended"
    },
    "verificationStatus": "safe_fallback",
    "warnings": [
      "未取得该资产全部字段的官方可核验证据；当前为保守设计建议，不能声称平台官方合规。"
    ]
  },
  "assetDefaults": {
    "white_background": {
      "target": {
        "background": "纯白 #FFFFFF",
        "alphaAllowed": false,
        "width": 2048,
        "height": 2048,
        "ratio": "1:1"
      },
      "enforcement": {
        "background": "recommended",
        "alpha": "recommended"
      }
    },
    "listing_primary": {
      "target": {
        "background": "简洁商品背景，禁止竞品标识、虚构价格和平台 UI",
        "width": 2048,
        "height": 2048,
        "ratio": "1:1"
      }
    }
  },
  "platforms": {
    "taobao": {
      "label": "淘宝/天猫",
      "aliases": [
        "淘宝/天猫",
        "淘宝天猫",
        "淘宝",
        "天猫",
        "taobao",
        "tmall",
        "taobao.com",
        "tmall.com"
      ],
      "ruleCenterUrl": "https://rule.taobao.com/",
      "assets": {
        "listing_primary": {
          "uploadRole": "商品 1:1 主图",
          "verificationStatus": "official_verified_partial",
          "enforcement": {
            "ratio": "required"
          },
          "warnings": [
            "1:1 比例有官方公告证据；具体像素、文件大小、背景和类目附加要求仍需商家后台复核。"
          ],
          "evidenceIds": [
            "TB-2024-01-26-MAIN-RATIO"
          ]
        },
        "white_background": {
          "uploadRole": "白底商品图候选",
          "verificationStatus": "official_verified_partial",
          "enforcement": {
            "ratio": "required",
            "background": "recommended"
          },
          "warnings": [
            "1:1 比例有官方公告证据；白底图位置和具体像素未由当前证据证明。"
          ],
          "evidenceIds": [
            "TB-2024-01-26-MAIN-RATIO"
          ]
        }
      }
    },
    "jingdong": {
      "label": "京东",
      "aliases": [
        "京东",
        "jd",
        "jd.com",
        "jingdong",
        "jing dong"
      ],
      "ruleCenterUrl": "https://rule.jd.com/",
      "evidenceIds": [
        "JD-RULE-CENTER"
      ],
      "assets": {
        "listing_primary": {
          "uploadRole": "商品主图候选"
        },
        "white_background": {
          "uploadRole": "白底商品图候选"
        }
      }
    },
    "pinduoduo": {
      "label": "拼多多",
      "aliases": [
        "拼多多",
        "pdd",
        "pinduoduo",
        "pinduoduo.com"
      ],
      "ruleCenterUrl": "https://mms.pinduoduo.com/help-center",
      "evidenceIds": [
        "PDD-HELP-CENTER"
      ],
      "assets": {
        "listing_primary": {
          "uploadRole": "商品轮播主图候选"
        },
        "white_background": {
          "uploadRole": "独立白底商品图候选"
        }
      }
    }
  }
}