:root{--accent:#d93a2b;--accent-dark:#b52f22;--ink:#1b1f24;--ink-soft:#5b6572;--bg:#f4f5f7;--card:#ffffff;--line:#e6e9ee;--ok:#1e8e3e}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:1140px;margin:0 auto;padding:0 20px}.topbar{background:var(--ink);color:#cdd3da;font-size:13px}.topbar .container{display:flex;justify-content:space-between;padding-top:6px;padding-bottom:6px;flex-wrap:wrap;gap:6px}.topbar a{color:#fff;font-weight:600}.header{background:#fff;border-bottom:1px solid var(--line);position:-webkit-sticky;position:sticky;top:0;z-index:50}.header .container{display:flex;align-items:center;gap:28px;height:64px}.logo{font-size:21px;font-weight:800;letter-spacing:-.5px}.logo span{color:var(--accent)}.nav{display:flex;gap:20px;font-weight:600;font-size:14.5px;flex:1 1}.nav a:hover{color:var(--accent)}.cart-link{position:relative;font-weight:700;font-size:14.5px}.cart-badge{background:var(--accent);color:#fff;border-radius:99px;font-size:11px;padding:1px 7px;margin-left:6px}.hero{background:linear-gradient(135deg,#22272e,#343c46);color:#fff;padding:56px 0}.hero h1{font-size:clamp(26px,4vw,40px);margin:0 0 10px}.hero p{color:#b8c0ca;max-width:560px;margin:0 0 24px;font-size:16px}.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:12px 26px;border-radius:8px;border:none;font-size:15px;cursor:pointer}.btn:hover{background:var(--accent-dark)}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}.section{padding:36px 0}.section h2{font-size:22px;margin:0 0 18px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));grid-gap:16px;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .15s;display:flex;flex-direction:column}.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.09)}.card-img{aspect-ratio:1;background:#fff;display:flex;align-items:center;justify-content:center;padding:12px}.card-img img{max-height:100%;object-fit:contain}.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1 1}.card-title{font-weight:600;font-size:14px;line-height:1.35;flex:1 1}.price{color:var(--accent);font-weight:800;font-size:16px}.price small,.price-old{color:var(--ink-soft);font-weight:500}.price-old{text-decoration:line-through;font-size:13px;margin-right:8px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.chip{background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:99px;font-size:13.5px;font-weight:600}.chip.active,.chip:hover{border-color:var(--accent);color:var(--accent)}.product-layout{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);grid-gap:36px;gap:36px;padding:36px 0}@media (max-width:860px){.product-layout{grid-template-columns:1fr}}.product-img{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;display:flex;align-items:center;justify-content:center;min-height:320px}.product-title{font-size:26px;margin:0 0 6px}.opt-group{margin:18px 0}.opt-label{font-weight:700;font-size:14px;margin-bottom:8px;display:block}.opt-label small{color:var(--ink-soft);font-weight:500}.opts{display:flex;gap:8px;flex-wrap:wrap}.opt{background:#fff;border:2px solid var(--line);border-radius:8px;padding:9px 15px;font-size:14px;font-weight:600;cursor:pointer}.opt.sel{border-color:var(--accent);color:var(--accent);background:#fdf1f0}.qty{display:inline-flex;align-items:center;border:2px solid var(--line);border-radius:8px;background:#fff}.qty button{width:42px;background:none;font-size:19px;cursor:pointer}.qty button,.qty input{height:42px;border:none;font-weight:700}.qty input{width:72px;text-align:center;font-size:15px;outline:none}.total-line{font-size:15px;margin:16px 0}.total-line strong{font-size:24px;color:var(--accent)}.calc{background:#fff;border:1px dashed #c9cfd8;border-radius:12px;padding:16px 18px;margin:20px 0}.calc h3{margin:0 0 10px;font-size:15px}.calc-row{display:flex;gap:12px;flex-wrap:wrap;align-items:end}.calc-row label{font-size:12.5px;color:var(--ink-soft);font-weight:600;display:block;margin-bottom:4px}.calc-row input{width:110px;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px}.calc-result{margin-top:10px;font-size:14px}.calc-result strong{color:var(--ok)}.cart-row{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px;flex-wrap:wrap}.cart-row .grow{flex:1 1;min-width:180px}.muted{color:var(--ink-soft);font-size:13px}.footer{background:var(--ink);color:#9aa3ad;padding:28px 0;margin-top:48px;font-size:13px}.badge-staging{position:fixed;bottom:14px;right:14px;background:#f59e0b;color:#1b1f24;font-weight:800;font-size:11.5px;padding:6px 12px;border-radius:99px;z-index:99;box-shadow:0 2px 10px rgba(0,0,0,.25)}