{
  "name": "AI英语助手 - 智能口语陪练",
  "short_name": "AI英语助手",
  "description": "AI驱动的英语学习工具 - 课本同步、单词闯关、语法句型、口语对话。适合小学生和英语初学者。",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#f2f3f5",
  "theme_color": "#1a6ff5",
  "orientation": "any",
  "lang": "zh-CN",
  "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": ["education", "productivity"],
  "shortcuts": [
    { "name": "课本同步", "url": "/textbook", "icons": [{ "src": "/icon-192.png", "sizes": "192x192" }] },
    { "name": "单词闯关", "url": "/words", "icons": [{ "src": "/icon-192.png", "sizes": "192x192" }] },
    { "name": "口语对话", "url": "/speaking", "icons": [{ "src": "/icon-192.png", "sizes": "192x192" }] }
  ]
}