.case-main{max-width:1160px;margin:0 auto;padding:112px 24px 72px}.case-hero{padding:54px 0 42px;max-width:850px}.case-eyebrow{display:inline-flex;padding:7px 12px;border-radius:999px;background:#e9f6f1;color:#0d7c5c;font-weight:700;font-size:.82rem}.case-hero h1{font-family:"Noto Serif SC",serif;font-size:clamp(2.2rem,5vw,4rem);line-height:1.1;margin:18px 0}.case-hero p{font-size:1.08rem;line-height:1.85;color:#53605d}.case-note{background:#f8f4e9;border-left:4px solid #b58a35;padding:16px 18px;margin:8px 0 34px;color:#5c5039}.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.case-card{display:flex;flex-direction:column;background:#fff;border:1px solid #dfe8e4;border-radius:18px;padding:26px;box-shadow:0 10px 30px rgba(14,64,50,.06)}.case-card .num{font-size:.78rem;color:#0d7c5c;font-weight:700;letter-spacing:.08em}.case-card h2{font-size:1.35rem;margin:12px 0}.case-card p{color:#5a6662;line-height:1.75;flex:1}.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 22px}.case-tags span{font-size:.78rem;padding:6px 9px;background:#f1f6f4;border-radius:7px;color:#335249}.case-link{font-weight:700;color:#0d7c5c;text-decoration:none}.case-link:hover{text-decoration:underline}.case-detail{max-width:860px}.case-detail h1{font-family:"Noto Serif SC",serif;font-size:clamp(2rem,5vw,3.5rem);line-height:1.18}.case-meta{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 30px}.case-meta span{padding:7px 11px;background:#eef6f3;border-radius:8px;color:#28594c;font-size:.85rem}.case-section{padding:25px 0;border-top:1px solid #e2e9e6}.case-section h2{font-size:1.35rem;margin:0 0 12px}.case-section p,.case-section li{line-height:1.85;color:#4f5c58}.case-section ul{padding-left:20px}.case-back{display:inline-block;margin-top:28px;color:#0d7c5c;font-weight:700;text-decoration:none}.case-cta{margin-top:40px;padding:28px;border-radius:18px;background:#0d5f49;color:#fff}.case-cta h2{margin-top:0}.case-cta a{display:inline-block;margin-top:8px;background:#fff;color:#0d5f49;padding:11px 18px;border-radius:9px;font-weight:700;text-decoration:none}@media(max-width:820px){.case-grid{grid-template-columns:1fr}.case-main{padding-top:88px}.case-hero{padding-top:28px}}