.case-breadcrumb{padding:110px 0 0;font-size:13px;color:var(--muted)}
.case-breadcrumb a{text-decoration:underline}
.case-hero{padding:40px 0 60px}
.case-hero h1{font-size:clamp(34px,4.6vw,52px);line-height:1.12;letter-spacing:-.03em;margin:20px 0 18px}
.case-hero .lead{font-size:17px;color:var(--muted);max-width:640px}
.case-hero .case-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.case-hero .actions{margin-top:30px}
.case-body{padding:10px 0 70px}
.case-body section{margin-bottom:50px;max-width:720px}
.case-body h2{font-size:clamp(24px,2.8vw,30px);letter-spacing:-.03em;margin-bottom:14px}
.case-body p{color:#333c36;font-size:16px;line-height:1.8}
.case-stat-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:20px}
.case-stat{border:1px solid var(--line);border-radius:16px;padding:14px 20px;min-width:150px}
.case-stat b{display:block;font-size:20px;letter-spacing:-.02em}
.case-stat span{font-size:12px;color:var(--muted)}
.case-related{padding:20px 0 80px}
.case-related .service-card{min-height:auto;padding:26px}
.case-related .service-card h3{font-size:24px;margin-top:16px;padding-right:0}
.case-features{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0}
.case-feature{border:1px solid var(--line);border-radius:16px;padding:18px 20px;background:#fff}
.case-feature h3{font-size:15px;letter-spacing:-.01em;margin-bottom:6px}
.case-feature p{font-size:14px;line-height:1.6;color:var(--muted)}
.case-faq{max-width:720px}
.case-faq details{border-bottom:1px solid var(--line);padding:18px 0}
.case-faq summary{font-size:16px;font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.case-faq summary::-webkit-details-marker{display:none}
.case-faq summary::after{content:"+";font-size:20px;font-weight:400;flex-shrink:0}
.case-faq details[open] summary::after{content:"−"}
.case-faq details p{margin-top:12px;color:#333c36;font-size:15px;line-height:1.7}
@media(max-width:600px){.case-breadcrumb{padding-top:95px}.case-hero{padding:24px 0 40px}.case-features{grid-template-columns:1fr}}