{
  "name": "階段計算機：設計と施工",
  "short_name": "階段計算機：設計と施工",
  "description": "階段の正確な寸法（蹴上げ、踏み面、角度）と材料を計算します。ブロンデルの法則（勾配規則）を遵守し、施工ミスを防ぎます。",
  "start_url": "/ja/utilities/categories/diy/stair-calculator/",
  "scope": "/ja/utilities/categories/diy/stair-calculator/",
  "icons": [
    {
      "src": "/images/utilities/stair-calculator.webp",
      "sizes": "512x512",
      "type": "image/webp",
      "purpose": "any"
    }
  ],
  "theme_color": "#0f172a",
  "background_color": "#0f172a",
  "display": "standalone",
  "orientation": "portrait"
}