:root{--bg:#f8fafc;--line:#e5e7eb;--text:#0f172a;--muted:#64748b;--green:#22c55e;--green2:#16a34a}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.pd-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.pd-nav{display:flex;justify-content:space-between;align-items:center;padding:16px 0;gap:12px;flex-wrap:wrap}
.pd-brand{text-decoration:none;color:var(--text);font-size:24px;font-weight:800}.pd-nav-actions{display:flex;gap:16px;flex-wrap:wrap}.pd-nav-actions a{text-decoration:none;color:var(--text)}
.pd-main{padding:26px 20px 50px}.pd-breadcrumb{display:flex;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--muted);margin-bottom:18px}.pd-breadcrumb a{text-decoration:none;color:var(--muted)}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.pd-gallery,.pd-info,.cart-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 16px 35px rgba(15,23,42,.05)}
.pd-main-image-wrap{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#f1f5f9}
.pd-main-image{width:100%;aspect-ratio:1/1;object-fit:cover;display:block}
.pd-main-fallback{aspect-ratio:1/1;display:grid;place-items:center;font-size:30px;font-weight:700;color:#94a3b8}
.pd-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:14px}
.pd-thumb-btn{border:1px solid var(--line);background:#fff;padding:0;border-radius:14px;overflow:hidden;cursor:pointer}
.pd-thumb-btn img{width:100%;height:84px;object-fit:cover;display:block}
.pd-thumb-btn.active{outline:2px solid var(--green)}
.pd-badge{display:inline-block;padding:8px 12px;border-radius:999px;background:#fef3c7;color:#92400e;font-weight:700;font-size:13px}
.pd-info h1{margin:14px 0 10px;font-size:40px;line-height:1.12}.pd-price{font-size:38px;font-weight:800;color:#16a34a;margin-bottom:18px}
.pd-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:18px}.pd-meta div{background:#f8fafc;border:1px solid var(--line);border-radius:16px;padding:14px}.pd-meta span{display:block;color:var(--muted);font-size:13px;margin-bottom:4px}
.pd-desc h3{margin:0 0 10px}.pd-desc p{line-height:1.8;color:#334155}.qty-wrap{margin:18px 0}.qty-wrap label{display:block;margin-bottom:8px;font-weight:700}.qty-wrap input{width:120px;height:48px;border-radius:12px;border:1px solid var(--line);padding:0 12px}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap}.btn-cart,.btn-buy{display:inline-block;padding:14px 20px;border-radius:14px;text-decoration:none;font-weight:700;border:none;cursor:pointer}.btn-cart{background:#fff7ed;color:#c2410c;border:1px solid #fdba74}.btn-buy{background:linear-gradient(135deg,var(--green),var(--green2));color:#fff}
.cart-main{padding:30px 20px}.cart-table{width:100%;border-collapse:collapse}.cart-table th,.cart-table td{padding:14px;border-bottom:1px solid var(--line);text-align:left}.cart-total{display:flex;justify-content:flex-end;gap:12px;font-size:22px;font-weight:800;margin-top:20px}.cart-empty{padding:30px 10px;color:var(--muted);text-align:center}
@media(max-width:980px){.pd-grid{grid-template-columns:1fr}.pd-thumbs{grid-template-columns:repeat(4,1fr)}.pd-info h1{font-size:30px}.pd-price{font-size:30px}}