{
  "name": "NAV SYS 導航系統",
  "short_name": "NAV SYS",
  "description": "GPS 導航系統 — 羅盤、地圖、海拔、天氣、水平儀、測距儀",
  "start_url": "/index.html",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#0a0e14",
  "theme_color": "#0d1520",
  "lang": "zh-TW",
  "icons": [
    {"src": "icon-192.png", "sizes": "192x192", "type": "image/png", "purpose": "any maskable"},
    {"src": "icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any maskable"}
  ],
  "categories": ["navigation", "travel", "utilities"]
}