:root {
  --bg: #0d0f12;
  --bg-soft: #141923;
  --panel: #141a20;
  --panel-2: #1a1f2a;
  --gold: #c8a96d;
  --gold-soft: #efd8aa;
  --text: #f5f1eb;
  --muted: #bac0c7;
  --line: rgba(255,255,255,0.08);
  --shadow: 0 18px 40px rgba(0,0,0,0.25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Microsoft JhengHei", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #090b10 0%, #11151b 100%);
  color: var(--text);
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(9,11,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex; justify-content: space-between; align-items: center;
  gap: 18px; min-height: 78px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.3rem; font-weight: 700; letter-spacing: .12em;
}
.brand img { width: 52px; height: 52px; }
.nav-links {
  display: flex; align-items: center; justify-content: center;
  gap: 18px; flex-wrap: wrap;
}
.nav-links a, .icon-link { color: var(--muted); font-size: .92rem; }
.nav-links a:hover, .icon-link:hover { color: var(--gold-soft); }
.cart-count {
  display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 22px; border-radius: 999px;
  background: var(--gold); color: #1a1208; font-weight: 700; font-size: .78rem; margin-left: 6px;
}
.hero { padding: 52px 0 36px; }
.hero-shell {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px;
  align-items: center; background: linear-gradient(135deg, rgba(200,169,109,0.12), rgba(255,255,255,0.02));
  border: 1px solid var(--line); border-radius: 28px; overflow: hidden; box-shadow: var(--shadow);
}
.hero-copy { padding: 42px; }
.eyebrow { display: inline-block; padding: 8px 14px; border: 1px solid rgba(200,169,109,0.6); border-radius: 999px; color: var(--gold-soft); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 18px 0 12px; font-size: clamp(2.3rem, 4vw, 4rem); line-height: 1.1; }
.lead { color: var(--muted); max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; padding: 14px 22px; border-radius: 12px; border: 1px solid transparent; font-weight: 700; cursor: pointer; transition: transform .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--gold), #987433); color: #130f09; }
.btn-secondary { border-color: rgba(255,255,255,0.12); background: transparent; color: var(--text); }
.hero-media img { width: 100%; min-height: 470px; object-fit: cover; }
.section { padding: 50px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 18px; margin-bottom: 24px; }
.section-head h2 { margin: 0; font-size: clamp(1.9rem, 2.5vw, 2.8rem); }
.link-more { color: var(--gold-soft); }
.category-grid, .product-grid, .value-grid { display: grid; gap: 20px; }
.category-grid { grid-template-columns: repeat(5, minmax(0,1fr)); }
.category-card, .product-card, .value-card, .form-card, .cart-total, .totals, .cart-item { background: rgba(255,255,255,0.02); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; box-shadow: var(--shadow); }
.category-card:hover, .product-card:hover { border-color: rgba(200,169,109,0.55); transform: translateY(-4px); transition: .2s ease; }
.category-card img { width: 100%; height: 220px; object-fit: cover; }
.category-card .card-body { padding: 18px; }
.category-card h3 { margin: 0 0 8px; }
.category-card p { margin: 0; color: var(--muted); }
.product-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.product-card { display: flex; flex-direction: column; }
.product-card .thumb { position: relative; }
.product-card .thumb img { width: 100%; height: 320px; object-fit: cover; }
.badge { position: absolute; left: 14px; top: 14px; padding: 6px 10px; border-radius: 999px; border: 1px solid rgba(200,169,109,0.7); background: rgba(0,0,0,0.45); color: var(--gold-soft); font-size: .72rem; }
.product-info { padding: 18px; display: flex; flex-direction: column; flex: 1; }
.product-info h3 { margin: 0 0 10px; }
.product-meta { display: flex; justify-content: space-between; align-items: center; color: var(--muted); margin-bottom: 14px; }
.price { font-size: 1.35rem; color: var(--gold-soft); font-weight: 700; }
.product-actions { display: flex; gap: 10px; margin-top: auto; }
.btn-ghost { flex: 1; border: 1px solid rgba(255,255,255,0.18); background: transparent; color: var(--text); border-radius: 10px; padding: 12px 14px; cursor: pointer; font-weight: 700; }
.btn-ghost.primary { background: linear-gradient(135deg, var(--gold), #8a6734); color: #190f07; border-color: transparent; }
.brand-banner { background: linear-gradient(135deg, rgba(200,169,109,0.08), rgba(255,255,255,0.02)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.value-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.value-card { padding: 28px 22px; }
.value-card h3 { margin-top: 0; }
.page-header { padding: 54px 0 28px; background: linear-gradient(180deg, rgba(200,169,109,0.08), rgba(255,255,255,0.02)); }
.page-header h1 { margin: 0; }
.page-header p { color: var(--muted); margin-top: 8px; }
.breadcrumbs { color: var(--muted); font-size: .9rem; margin-bottom: 8px; }
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.filter-pill { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.02); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; color: var(--muted); }
.product-detail-card { display: grid; grid-template-columns: 1.1fr .9fr; gap: 0; background: rgba(255,255,255,0.02); border: 1px solid var(--line); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); }
.product-detail-card img { width: 100%; min-height: 620px; object-fit: cover; }
.product-detail-body { padding: 34px; }
.rating { color: var(--gold-soft); letter-spacing: .12em; margin: 10px 0 16px; }
.product-detail-body .price { display: block; margin: 18px 0; }
.detail-list { margin: 18px 0; padding-left: 18px; color: var(--muted); }
.detail-list li { margin-bottom: 8px; }
.product-detail-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.qty-box { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.qty-box button { width: 42px; height: 42px; border: none; background: rgba(255,255,255,0.03); color: var(--text); font-size: 1.3rem; cursor: pointer; }
.qty-box span { min-width: 42px; text-align: center; font-weight: 700; }
.summary-box { margin-top: 26px; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,0.02); }
.summary-box h3 { margin-top: 0; }
.form-card, .cart-total, .totals { padding: 24px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; color: var(--muted); }
.field input, .field textarea, .field select { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255,255,255,0.02); color: var(--text); }
.full { grid-column: 1 / -1; }
.checkout-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.cart-list { display: grid; gap: 16px; }
.cart-item { display: grid; grid-template-columns: 100px 1fr auto; gap: 16px; align-items: center; padding: 16px; }
.cart-item img { width: 100%; height: 92px; object-fit: cover; border-radius: 10px; }
.cart-item h4 { margin: 0 0 4px; }
.total-row { display: flex; justify-content: space-between; gap: 18px; margin: 12px 0; color: var(--muted); }
.total-row strong { color: var(--text); }
.pill-list { display: flex; flex-wrap: wrap; gap: 10px; }
.site-footer { margin-top: 32px; background: #0a0d12; border-top: 1px solid var(--line); padding: 44px 0 18px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr .9fr; gap: 22px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; color: var(--muted); display: grid; gap: 8px; }
.footer-bottom { color: var(--muted); border-top: 1px solid var(--line); margin-top: 18px; padding-top: 18px; }
.empty-cart { color: var(--muted); padding: 12px 0; }
@media (max-width: 900px) {
  .hero-shell, .product-detail-card, .checkout-layout { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .value-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .nav-wrap { flex-direction: column; padding: 16px 0; }
  .nav-links { gap: 10px; }
  .category-grid, .product-grid, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-copy { padding: 26px 18px; }
  .product-detail-body { padding: 22px; }
}