.case-detail-wrap{max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;line-height:1.7;color:#111;}
    .case-hero{border:1px solid #e9e9e9;border-radius:14px;padding:18px;background:#fff;}
    .case-hero h1{margin:0 0 10px;font-size:28px;line-height:1.25;}
    .case-sub{margin:0;color:#444;}
    .case-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
    .case-tag{display:inline-block;font-size:12px;padding:6px 10px;border-radius:999px;background:#f6f7f8;border:1px solid #eee;color:#222;}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px;}
    .case-card{border:1px solid #e9e9e9;border-radius:14px;padding:16px;background:#fff;}
    .case-card h2{margin:0 0 10px;font-size:18px;}
    .case-list{margin:0;padding-left:18px;}
    .case-list li{margin:6px 0;}
    .case-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px;}
    .case-kpi .k{border:1px solid #eee;border-radius:12px;padding:12px;background:#fafafa;}
    .case-kpi .k b{display:block;font-size:18px;margin-bottom:2px;}
    .case-kpi .k span{font-size:12px;color:#555;}
    .case-body{border:1px solid #e9e9e9;border-radius:14px;padding:16px;background:#fff;margin-top:14px;}
    .case-body h2{margin:0 0 10px;font-size:18px;}
    .case-body p{margin:10px 0;color:#222;}
    .case-cta{border-radius:16px;padding:16px;background:#111;color:#fff;margin-top:14px;}
    .case-cta h2{margin:0 0 8px;font-size:18px;color:#fff;}
    .case-cta p{margin:0;color:#eaeaea;}
    .case-btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;}
    .case-btn{display:inline-block;text-decoration:none;padding:10px 14px;border-radius:12px;font-weight:bold;font-size:14px;}
    .case-btn.primary{background:#fff;color:#111;}
    .case-btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);}
    @media(max-width:860px){
      .case-grid{grid-template-columns:1fr;}
      .case-kpi{grid-template-columns:1fr;}
      .case-hero h1{font-size:24px;}
    }