{
  "schemaVersion": 2,
  "sourceKind": "structured-spec",
  "confidence": "high",
  "slug": "collapse",
  "name": "折叠面板 Collapse",
  "semanticTypeCandidates": [
    "accordion",
    "disclosure"
  ],
  "variantDimensions": [
    {
      "name": "mode",
      "values": [
        "default",
        "accordion"
      ]
    },
    {
      "name": "state",
      "values": [
        "collapsed",
        "expanded"
      ]
    }
  ],
  "representativeVariants": [
    {
      "mode": "default",
      "state": "expanded",
      "label": "默认展开第一项"
    },
    {
      "mode": "default",
      "state": "collapsed",
      "label": "收起态"
    },
    {
      "mode": "accordion",
      "state": "expanded",
      "label": "手风琴模式（同时只展开一个）"
    }
  ],
  "anatomy": {
    "header": "标题栏：高度 40px，左侧箭头图标",
    "arrow": "展开时箭头旋转 90°",
    "content": "内容区下方分割线"
  },
  "structurePatterns": {
    "headerHeight": "40px",
    "arrowRotate": "90deg",
    "divider": "内容区下方"
  },
  "usageHints": [
    "用于分组展示内容，默认展开第一项",
    "标题栏高度 40px，左侧箭头图标",
    "展开时箭头旋转 90°，内容区下方分割线",
    "支持手风琴模式（同时只展开一个）"
  ],
  "doNotInvent": [
    "嵌套折叠面板的层级规范"
  ],
  "unknowns": [
    "禁用项的视觉表现",
    "内容区最大高度与滚动策略"
  ]
}