{
  "schemaVersion": 2,
  "sourceKind": "structured-spec",
  "confidence": "high",
  "slug": "qrcode",
  "name": "二维码 QRCode",
  "semanticTypeCandidates": [
    "qrcode",
    "code-matrix"
  ],
  "variantDimensions": [
    {
      "name": "size",
      "values": [
        "120px",
        "180px",
        "240px"
      ]
    },
    {
      "name": "logo",
      "values": [
        "none",
        "embedded"
      ]
    }
  ],
  "representativeVariants": [
    {
      "size": "120px",
      "logo": "none",
      "label": "小尺寸二维码"
    },
    {
      "size": "180px",
      "logo": "none",
      "label": "中尺寸二维码"
    },
    {
      "size": "240px",
      "logo": "embedded",
      "label": "嵌入 Logo"
    }
  ],
  "anatomy": {
    "matrix": "码点矩阵：容错率 M",
    "logo": "嵌入 Logo（尺寸 20%）",
    "colors": "背景白色，前景黑色，支持自定义颜色"
  },
  "structurePatterns": {
    "size": "120-240px",
    "errorCorrection": "M",
    "logoSize": "20%",
    "background": "#FFFFFF",
    "foreground": "#000000"
  },
  "usageHints": [
    "用于扫码登录、分享、设备绑定",
    "尺寸 120–240px，容错率 M",
    "支持嵌入 Logo（尺寸 20%）",
    "背景白色，前景黑色，支持自定义颜色"
  ],
  "doNotInvent": [
    "二维码中心 Logo 的白底留边尺寸"
  ],
  "unknowns": [
    "自定义前景/背景色的取值边界",
    "失效态（过期）的覆盖表现"
  ]
}