{
  "name": "ChemCalc 工程计算平台 / Engineering Calculators",
  "short_name": "ChemCalc",
  "description": "85 browser-based modules organized for chemical process, boiler and steam, refrigeration and HVAC, fluid utilities, and safety/control engineers.",
  "start_url": "/",
  "scope": "/",
  "display": "standalone",
  "orientation": "any",
  "background_color": "#0f172a",
  "theme_color": "#0891b2",
  "lang": "zh-CN",
  "categories": ["productivity", "utilities", "education"],
  "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"}
  ],
  "shortcuts": [
    {"name": "Steam Tables", "short_name": "Steam", "url": "/", "description": "IAPWS-IF97 Steam Tables / 水蒸汽表"},
    {"name": "Refrig. Cycle", "short_name": "Refrig.", "url": "/", "description": "Refrigeration Cycle COP / 制冷循环"},
    {"name": "VLE Flash", "short_name": "VLE", "url": "/", "description": "VLE Flash PR/SRK / VLE闪蒸"},
    {"name": "Verify", "short_name": "Verify", "url": "/verify", "description": "Public Verification / 公开验证"}
  ]
}