:root{--brand: #6d5efc;--brand-dark: #5544e0;--brand-soft: #f0edff;--ink: #1a1a2e;--ink-soft: #5b5b74;--line: #ececf3;--bg: #ffffff;--bg-soft: #f7f7fb;--ok: #0a7d4d;--danger: #d64545;--sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--maxw: 1120px;--radius: 14px;--shadow: 0 6px 24px rgba(80,70,180,.1)}*{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:#fffffff2;backdrop-filter:blur(8px);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:38px;width:auto;border-radius:8px}.brand-text{font-weight:800;font-size:20px;letter-spacing:-.3px}.brand-text span{color:var(--brand)}.cart-btn{display:flex;align-items:center;gap:6px;font-weight:700;font-size:15px;background:var(--brand-soft);padding:8px 14px;border-radius:999px;color:var(--brand-dark)}.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}.hero{background:linear-gradient(135deg,var(--brand-soft),#fff);padding:60px 0 40px;text-align:center;border-bottom:1px solid var(--line)}.demo-banner{display:inline-block;background:#fff4d6;color:#8a6d00;border:1px solid #f0d888;font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:999px;margin-bottom:20px}.hero h1{font-size:40px;line-height:1.15;margin:0 0 12px;letter-spacing:-1px}.hero h1 span{color:var(--brand)}.hero p{font-size:18px;color:var(--ink-soft);max-width:620px;margin:0 auto}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:40px 0 20px}.section-head h2{font-size:26px;margin:0}.section-head span{color:var(--ink-soft);font-size:14px}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;padding-bottom:50px}.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg);transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.card-img{aspect-ratio:16/9;background:var(--bg-soft)}.card-img img{width:100%;height:100%;object-fit:cover}.card-body{padding:18px 20px 22px}.badge{display:inline-block;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--brand-dark);background:var(--brand-soft);padding:4px 10px;border-radius:999px}.card h3{font-size:20px;margin:12px 0 4px;line-height:1.3}.tagline{color:var(--brand-dark);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:var(--ink)}.view{color:var(--brand);font-weight:600;font-size:14px}.product-detail{padding:30px 20px 60px}.back{color:var(--ink-soft);font-size:14px;display:inline-block;margin-bottom:20px}.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}.pd-price{font-size:32px;font-weight:800;color:var(--brand);margin:16px 0}.pd-desc{color:var(--ink-soft);margin-bottom:18px}.features{list-style:none;padding:0;margin:0 0 24px}.features li{padding:8px 0 8px 28px;position:relative;border-bottom:1px solid var(--line);font-size:15px}.features li:before{content:"✓";position:absolute;left:0;color:var(--ok);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;width:100%}.btn-buy:hover{background:var(--brand-dark)}.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:30px 20px 60px;max-width:800px}.cart-page h1{font-size:28px}.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}.cr-qty{color:var(--ink-soft);font-size:14px}.cr-price{font-weight:700}.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}.checkout-form{display:flex;flex-direction:column;gap:12px;background:var(--bg-soft);padding:22px;border-radius:var(--radius)}.checkout-form h3{margin:0 0 6px;font-size:17px}.checkout-form input{padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:inherit}.checkout-result{margin-top:24px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);text-align:center}.pay-code{font-size:20px;font-weight:800;color:var(--brand);letter-spacing:1px;background:#fff;padding:10px;border-radius:8px;display:inline-block}.qr{width:200px;height:200px;margin:16px auto;border:1px solid var(--line);border-radius:8px}.err{color:var(--danger)}.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);margin-top:40px;padding:30px 0}.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.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:30px}}