{
  "case": "C05-N08",
  "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": "Playwright原生鼠标输入；另有明确标注的人工dispatch合成对照",
  "result": {
    "observed": [
      {
        "type": "click",
        "target": "host",
        "path": [
          "inner",
          "#document-fragment",
          "host",
          "BODY",
          "HTML",
          "#document"
        ],
        "trusted": true
      }
    ],
    "synthetic_probe": "composed:false未越过shadow root；这是人工dispatch对照"
  },
  "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"
  ]
}