:root{--brand: #fb3d0b;--brand-dark: #e0330a;--brand-soft: rgba(251,61,11,.12);--bg: #0a0a0f;--bg-card: #111119;--bg-card2: #16161f;--ink: #f0f0f5;--ink-soft: #9a9aa8;--line: #23232e;--ok: #22c55e;--danger: #f0503a;--sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--maxw: 1120px;--radius: 14px;--shadow: 0 8px 30px rgba(0,0,0,.5)}*{box-sizing:border-box}body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:#0a0a0fd9;backdrop-filter:blur(12px);z-index:50}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}.brand{display:flex;align-items:center;gap:10px}.brand img{height:36px;width:36px;border-radius:9px;background:#fff;padding:2px}.brand-text{font-weight:800;font-size:19px;letter-spacing:-.3px;color:#fff}.brand-text span{color:var(--brand)}.cart-btn{display:flex;align-items:center;gap:6px;font-weight:600;font-size:15px;background:var(--bg-card2);border:1px solid var(--line);padding:8px 14px;border-radius:999px;color:var(--ink);transition:border-color .15s}.cart-btn:hover{border-color:var(--brand);color:#fff}.cart-count{background:var(--brand);color:#fff;border-radius:999px;min-width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;padding:0 6px;font-weight:700}.hero{background:radial-gradient(1200px 500px at 50% -10%,rgba(251,61,11,.15),transparent 60%),var(--bg);padding:72px 0 48px;text-align:center;border-bottom:1px solid var(--line)}.hero h1{font-size:44px;line-height:1.12;margin:0 0 14px;letter-spacing:-1.2px;color:#fff;font-weight:800}.hero h1 span{color:var(--brand)}.hero p{font-size:18px;color:var(--ink-soft);max-width:600px;margin:0 auto}.demo-banner{display:inline-block;background:var(--brand-soft);color:var(--brand);border:1px solid rgba(251,61,11,.3);font-size:13px;font-weight:600;padding:7px 16px;border-radius:999px;margin-bottom:22px}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:44px 0 22px}.section-head h2{font-size:26px;margin:0;color:#fff;letter-spacing:-.4px}.section-head span{color:var(--ink-soft);font-size:14px}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-bottom:60px}.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-card);transition:border-color .2s,transform .2s,box-shadow .2s}.card:hover{border-color:#fb3d0b80;transform:translateY(-3px);box-shadow:var(--shadow)}.card-img{aspect-ratio:16/9;background:var(--bg-card2)}.card-img img{width:100%;height:100%;object-fit:cover}.card-body{padding:18px 20px 22px}.badge{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--brand);background:var(--brand-soft);padding:4px 10px;border-radius:999px}.card h3{font-size:20px;margin:12px 0 4px;line-height:1.3;color:#fff}.tagline{color:var(--brand);font-weight:600;font-size:14px;margin:0 0 8px}.short{color:var(--ink-soft);font-size:14px;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-foot{display:flex;align-items:center;justify-content:space-between}.price{font-size:22px;font-weight:800;color:#fff}.view{color:var(--brand);font-weight:600;font-size:14px}.product-detail{padding:34px 20px 64px}.back{color:var(--ink-soft);font-size:14px;display:inline-block;margin-bottom:22px}.back:hover{color:var(--brand)}.pd-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px}.pd-media img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}.pd-info h1{font-size:30px;margin:14px 0 6px;line-height:1.2;color:#fff;letter-spacing:-.5px}.pd-price{font-size:34px;font-weight:800;color:var(--brand);margin:16px 0}.pd-desc{color:var(--ink-soft);margin-bottom:20px}.features{list-style:none;padding:0;margin:0 0 26px}.features li{padding:9px 0 9px 28px;position:relative;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink)}.features li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}.btn-buy{display:inline-block;background:var(--brand);color:#fff;border:none;font-weight:700;font-size:16px;padding:14px 28px;border-radius:10px;cursor:pointer;transition:background .15s,transform .1s;width:100%}.btn-buy:hover{background:var(--brand-dark)}.btn-buy:active{transform:scale(.98)}.btn-cart-link{display:inline-block;text-align:center;width:100%;margin-top:12px;color:var(--brand);font-weight:600}.pd-note{font-size:13px;color:var(--ink-soft);margin-top:18px}.cart-page{padding:34px 20px 64px;max-width:800px}.cart-page h1{font-size:28px;color:#fff}.cart-empty{text-align:center;padding:40px 0;color:var(--ink-soft)}.cart-empty .btn-buy{width:auto;display:inline-block;margin-top:16px}.cart-row{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.cr-name{font-weight:600;color:#fff}.cr-qty{color:var(--ink-soft);font-size:14px}.cr-price{font-weight:700;color:#fff}.cr-del{background:none;border:none;color:var(--danger);font-size:18px;cursor:pointer}.cart-summary{margin-top:24px}.cart-total{font-size:20px;text-align:right;margin-bottom:20px;color:#fff}.checkout-form{display:flex;flex-direction:column;gap:12px;background:var(--bg-card);border:1px solid var(--line);padding:22px;border-radius:var(--radius)}.checkout-form h3{margin:0 0 6px;font-size:17px;color:#fff}.checkout-form input{padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:inherit;background:var(--bg);color:var(--ink)}.checkout-form input::placeholder{color:var(--ink-soft)}.checkout-form input:focus{outline:none;border-color:var(--brand)}.checkout-result{margin-top:24px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);text-align:center}.checkout-result h3{color:#fff}.pay-code{font-size:18px;font-weight:800;color:var(--brand);letter-spacing:1px;background:var(--bg);padding:8px 12px;border-radius:8px;display:inline-block;border:1px solid var(--line)}.qr{width:220px;height:220px;margin:16px auto;border:4px solid #fff;border-radius:12px;background:#fff}.asset{background:var(--bg-card2);border:1px solid var(--line);border-radius:10px;padding:16px;margin:12px 0;text-align:left;color:var(--ink)}.asset .btn-buy{width:auto;display:inline-block;margin-top:10px;padding:10px 20px}#pay-wait{color:var(--brand);font-weight:600;margin-top:14px}.err{color:var(--danger)}.site-footer{border-top:1px solid var(--line);background:var(--bg);margin-top:40px;padding:32px 0}.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.footer-inner strong{color:#fff}.footer-inner p{margin:4px 0 0;color:var(--ink-soft);font-size:14px}.footer-note{font-size:13px;color:var(--ink-soft);text-align:right}@media(max-width:820px){.pd-grid{grid-template-columns:1fr;gap:24px}.grid{grid-template-columns:1fr}.hero h1{font-size:32px}}