{
  "name": "呼吸可调",
  "short_name": "呼吸可调",
  "version": "1.0",
  "description": "圆形呼吸练习：吸气-屏息-呼气节奏可调（2-9秒，屏息可设为0），配森林溪流动态背景与水流声",
  "start_url": "./",
  "scope": "./",
  "display": "standalone",
  "orientation": "any",
  "background_color": "#2f5941",
  "theme_color": "#2f5941",
  "icons": [
    { "src": "icon-192.png", "sizes": "192x192", "type": "image/png", "purpose": "any" },
    { "src": "icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any" },
    { "src": "icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "maskable" }
  ]
}