@charset "UTF-8";:root{--primary: #e60012;--primary-dark: #cc0010;--primary-light: #ff1a2a;--secondary: #ff9800;--success: #10b981;--warning: #f59e0b;--dark: #1a1a1a;--gray-900: #111827;--gray-800: #1f2937;--gray-700: #374151;--gray-600: #4b5563;--gray-500: #6b7280;--gray-400: #9ca3af;--gray-300: #d1d5db;--gray-200: #e5e7eb;--gray-100: #f3f4f6;--gray-50: #f9fafb;--white: #ffffff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans JP,sans-serif;line-height:1.6;color:var(--gray-900);background:var(--white)}.main-content{max-width:1200px;margin:2rem auto;padding:0 1.5rem}.breadcrumb{margin:2rem 0;font-size:.9rem}.breadcrumb ol{display:flex;gap:.5rem;list-style:none;flex-wrap:wrap}.breadcrumb li+li:before{content:"›";margin-right:.5rem;color:var(--gray-400)}.breadcrumb a{color:var(--gray-600);text-decoration:none;transition:color .3s ease}.breadcrumb a:hover{color:var(--primary)}.breadcrumb 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0;border-radius:8px}.case-study h4{color:#0369a1;margin-top:0;margin-bottom:1rem}.implementation-steps{background:var(--gray-50);padding:2rem;border-radius:12px;margin:2rem 0}.implementation-steps h3{background:var(--primary);color:#fff;padding:1rem;margin:1.5rem -2rem 1rem;border-radius:8px}.implementation-steps h3:first-child{margin-top:0}.cta-section{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:3rem;border-radius:12px;text-align:center;margin:3rem 0}.cta-section h3{color:#fff;margin-bottom:1rem;font-size:1.8rem}.cta-section p{margin-bottom:2rem;opacity:.95}.cta-button{background:#fff;color:var(--primary);border:none;padding:1.25rem 3rem;border-radius:50px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .3s ease}.cta-button:hover{transform:translateY(-2px);box-shadow:0 10px 30px #ffffff4d}.related-articles{padding:3rem;border-top:2px solid var(--gray-200);margin-top:3rem}.related-articles h2{font-size:2rem;margin-bottom:2rem;color:var(--gray-900)}.article-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.related-card{position:relative;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0000001a;transition:all .3s ease;cursor:pointer}.related-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #00000026}.match-rate{position:absolute;top:1rem;right:1rem;background:var(--success);color:#fff;padding:.5rem 1rem;border-radius:50px;font-size:.85rem;font-weight:600;z-index:1}.related-card img{width:100%;height:200px;object-fit:cover}.related-card h3{padding:1.5rem 1.5rem 1rem;font-size:1.2rem;line-height:1.4;color:var(--gray-900)}.related-card .meta{padding:0 1.5rem 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