{
  "name": "材料计算器 - 全行业重量成本计算",
  "short_name": "材料计算器",
  "description": "全行业材料计算器：圆钢、方钢、六角钢、板材、管材、角钢、槽钢等12种形状，50+材料密度库，重量计算、成本核算、批量汇总、单位换算。",
  "start_url": "./index.html",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#0a1628",
  "theme_color": "#0052D9",
  "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"
    }
  ]
}