{
  "case": "C07-N10",
  "passed": true,
  "python": "3.12.4",
  "playwright": "1.58.0",
  "browser": "145.0.7632.6",
  "backend": "Chromium headless；ANGLE SwiftShader启动参数；WebGL实际renderer见题内结果",
  "input_scope": "两个headless标签页状态与原生事件观测；未形成隐藏分支",
  "result": {
    "initial": {
      "visibility": "visible",
      "hidden": false,
      "focus": true
    },
    "secondTabFront": {
      "visibility": "visible",
      "hidden": false,
      "focus": true
    },
    "restored": {
      "visibility": "visible",
      "hidden": false,
      "focus": true
    },
    "nativeEvents": [],
    "limitation": "headless页面状态按实际观察保留；不模拟visibilitychange，不推断最小化或物理遮挡"
  },
  "unmeasured": [
    "实体触摸屏和GPU性能",
    "Firefox/Safari/WebView",
    "辅助技术朗读与真人可用性",
    "目标展项和业务服务"
  ]
}