{
  "name": "教室呼叫系统",
  "short_name": "呼叫系统",
  "description": "教室远程呼叫办公室控制台",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#667eea",
  "orientation": "portrait",
  "icons": [
    {
      "src": "/school-logo.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ]
}