:root {
  --color-primary: #181d26;
  --color-primary-active: #0d1218;
  --color-ink: #181d26;
  --color-body: #333840;
  --color-muted: #41454d;
  --color-hairline: #dddddd;
  --color-canvas: #ffffff;
  --color-surface-soft: #f8fafc;
  --color-surface-strong: #e0e2e6;
  --color-signature-coral: #aa2d00;
  --color-signature-cream: #f5e9d4;
  --color-signature-peach: #fcab79;
  --color-signature-mint: #a8d8c4;
  --color-signature-yellow: #f4d35e;
  --color-on-primary: #ffffff;
  --color-link: #1b61c9;
  --color-pricing-ink: #1d1f25;
  --font-display: "Haas Groot Disp", Haas, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Haas, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-pricing: "Inter Display", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
  --rounded-pill: 9999px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-canvas);
  line-height: 1.45;
  font-size: 14px;
}
a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.header { background: var(--color-canvas); padding: 12px 0; }
.header-inner { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; min-height: 64px; }
.logo { font-family: var(--font-display); font-weight: 500; color: var(--color-ink); font-size: 18px; }
.logo:hover { text-decoration: none; }
.search { flex: 1; min-width: 200px; display: flex; gap: 8px; }
.search input {
  flex: 1; padding: 12px 16px; height: 44px;
  border: 1px solid var(--color-hairline); border-radius: var(--rounded-sm); font: inherit;
}
.search button {
  padding: 12px 20px; border: 0; background: var(--color-primary); color: var(--color-on-primary);
  font: inherit; font-weight: 500; cursor: pointer; border-radius: var(--rounded-lg);
}
.links { display: flex; gap: 16px; font-size: 14px; }
.links a { color: var(--color-ink); }

.nav { border-bottom: 1px solid var(--color-hairline); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 4px 20px; padding: 8px 32px; }
.nav a { color: var(--color-ink); font-size: 14px; }
.nav a.on { font-weight: 500; }

.hero { padding: 24px 0; }
.ph {
  background: var(--color-surface-strong); color: var(--color-muted);
  display: flex; align-items: center; justify-content: center; font-size: 13px;
  border-radius: var(--rounded-md);
}
.banner { height: 200px; background: var(--color-signature-coral); color: var(--color-on-primary); }

.section { padding: 48px 0; }
.section h2 {
  font-family: var(--font-display); font-size: 24px; font-weight: 400;
  color: var(--color-ink); margin: 0 0 16px;
}

.cats { display: flex; flex-wrap: wrap; gap: 8px; }
.cats a {
  background: var(--color-surface-soft); padding: 8px 14px;
  color: var(--color-ink); font-size: 13px; border-radius: var(--rounded-md);
}
.cats a:hover { text-decoration: none; }

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.item {
  background: var(--color-canvas); border-radius: var(--rounded-md);
  padding: 16px; color: var(--color-ink);
}
.item:nth-child(3n) { background: var(--color-signature-cream); }
.item:nth-child(4n) { background: var(--color-surface-soft); }
.item:hover { text-decoration: none; }
.item .ph { height: 120px; margin-bottom: 8px; }
.item h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.price { color: var(--color-pricing-ink); font-family: var(--font-pricing); font-weight: 500; }
.sub { color: var(--color-muted); font-size: 12px; }

.layout { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 32px 0; }
.side a {
  display: block; padding: 10px 0; color: var(--color-ink);
  border-bottom: 1px solid var(--color-hairline); font-size: 14px;
}
.side a.on { font-weight: 500; }

.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 32px 0; }
.detail .ph { height: 280px; }
.detail h1 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--color-ink); margin: 0 0 8px; }
.sku { color: var(--color-muted); font-size: 13px; margin-bottom: 12px; }
.spec { list-style: none; margin: 0 0 16px; padding: 0; font-size: 14px; }
.spec li { padding: 8px 0; border-bottom: 1px solid var(--color-hairline); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 24px; border: 0; background: var(--color-primary); color: var(--color-on-primary);
  font: inherit; font-weight: 500; cursor: pointer; border-radius: var(--rounded-lg); margin-right: 8px;
}
.btn:hover { text-decoration: none; color: var(--color-on-primary); }
.btn-line {
  background: var(--color-canvas); color: var(--color-ink); border: 1px solid var(--color-hairline);
}
.btn-line:hover { color: var(--color-ink); }
.btn-pill {
  border-radius: var(--rounded-pill); padding: 12px 24px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--color-hairline); padding: 12px 8px; text-align: left; }
.qty { width: 48px; padding: 8px; border: 1px solid var(--color-hairline); border-radius: var(--rounded-sm); font: inherit; }

.user-list { list-style: none; margin: 0; padding: 0; }
.user-list li {
  background: var(--color-surface-soft); border-radius: var(--rounded-md);
  padding: 16px; margin-bottom: 8px;
}

.footer { padding: 48px 0 40px; color: var(--color-muted); font-size: 13px; border-top: 1px solid var(--color-hairline); }
.footer p { margin: 0 0 4px; }

@media (max-width: 800px) {
  .products { grid-template-columns: repeat(2, 1fr); }
  .layout, .detail { grid-template-columns: 1fr; }
}

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }