:root {
  --color-primary: #000000;
  --color-ink: #000000;
  --color-on-primary: #ffffff;
  --color-canvas-night: #000000;
  --color-canvas-night-elevated: #0a0a0a;
  --color-canvas-cream: #fbfbf5;
  --color-surface-elevated-dark: #1e2c31;
  --color-shade-30: #d4d4d8;
  --color-shade-40: #a1a1aa;
  --color-shade-50: #71717a;
  --color-hairline-dark: #1e2c31;
  --color-aloe-10: #c1fbd4;
  --color-link-cool-1: #9dabad;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 20px;
  --rounded-pill: 9999px;
  --font-display: "NeueHaasGrotesk Display", Helvetica, Arial, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Inter, Helvetica, Arial, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-on-primary);
  background: var(--color-canvas-night);
  line-height: 1.5;
  font-feature-settings: "ss03";
  font-weight: 420;
}
a { color: var(--color-on-primary); text-decoration: none; }
a:hover { opacity: 0.8; }
.wrap { max-width: 1440px; margin: 0 auto; padding: 0 24px; }

.header { padding: 16px 0; }
.header-inner { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.logo {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-on-primary);
  font-size: 18px;
  letter-spacing: 0.3px;
}
.logo:hover { opacity: 1; }
.search { flex: 1; min-width: 200px; display: flex; }
.search input {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--color-hairline-dark);
  background: var(--color-canvas-night-elevated);
  color: var(--color-on-primary);
  font: inherit;
  border-radius: 9999px 0 0 9999px;
}
.search button {
  padding: 10px 20px;
  border: 2px solid var(--color-on-primary);
  background: transparent;
  color: var(--color-on-primary);
  font-weight: 420;
  cursor: pointer;
  border-radius: 0 9999px 9999px 0;
}
.links { display: flex; gap: 16px; font-size: 13px; }
.links a { color: var(--color-link-cool-1); }

.nav { border-top: 1px solid var(--color-hairline-dark); border-bottom: 1px solid var(--color-hairline-dark); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 4px 20px; padding: 12px 24px; }
.nav a { color: var(--color-shade-40); font-size: 14px; }
.nav a.on { color: var(--color-on-primary); }

.hero { padding: 24px 0 8px; }
.ph {
  background: var(--color-surface-elevated-dark);
  color: var(--color-shade-40);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  border-radius: var(--rounded-xl);
}
.banner { height: 280px; }

.section { padding: 48px 0; }
.section h2 {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 330;
  line-height: 1.14;
  margin: 0 0 24px;
}

.cats { display: flex; flex-wrap: wrap; gap: 8px; }
.cats a {
  background: transparent;
  border: 1px solid var(--color-on-primary);
  color: var(--color-on-primary);
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--rounded-pill);
}
.cats a:hover { background: var(--color-on-primary); color: var(--color-ink); opacity: 1; }

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.item { color: var(--color-on-primary); }
.item:hover { opacity: 0.85; }
.item .ph { height: 200px; margin-bottom: 12px; }
.item h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.3px;
}
.price { color: var(--color-on-primary); font-weight: 550; }
.sub { color: var(--color-shade-40); font-size: 12px; letter-spacing: 0.28px; }

.layout { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 32px 0; }
.side a {
  display: block;
  padding: 10px 0;
  color: var(--color-shade-40);
  border-bottom: 1px solid var(--color-hairline-dark);
  font-size: 14px;
}
.side a.on { color: var(--color-on-primary); }

.detail { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; padding: 32px 0; }
.detail .ph { height: 420px; }
.detail h1 {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 330;
  line-height: 1.14;
  margin: 0 0 8px;
}
.sku { color: var(--color-shade-40); font-size: 13px; margin-bottom: 16px; letter-spacing: 0.28px; }
.spec { list-style: none; margin: 0 0 24px; padding: 0; font-size: 14px; color: var(--color-shade-40); }
.spec li { padding: 8px 0; border-bottom: 1px solid var(--color-hairline-dark); }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border: 2px solid var(--color-on-primary);
  background: transparent;
  color: var(--color-on-primary);
  font: inherit;
  cursor: pointer;
  border-radius: var(--rounded-pill);
  margin-right: 8px;
}
.btn:hover { opacity: 0.85; }
.btn-line { border-width: 1px; color: var(--color-shade-40); border-color: var(--color-shade-40); }
.btn-line:hover { color: var(--color-shade-40); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--color-hairline-dark); padding: 14px 8px; text-align: left; color: var(--color-shade-40); }
th { color: var(--color-link-cool-1); font-weight: 400; letter-spacing: 0.28px; }
.qty {
  width: 56px;
  padding: 8px;
  background: var(--color-canvas-night-elevated);
  color: var(--color-on-primary);
  border: 1px solid var(--color-hairline-dark);
  border-radius: var(--rounded-md);
}

.user-list { list-style: none; margin: 0; padding: 0; }
.user-list li {
  background: var(--color-canvas-night-elevated);
  border-radius: var(--rounded-lg);
  padding: 16px;
  margin-bottom: 8px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

.footer {
  border-top: 1px solid var(--color-hairline-dark);
  padding: 48px 0 64px;
  color: var(--color-shade-40);
  font-size: 13px;
}
.footer p { margin: 0 0 4px; }

@media (max-width: 800px) {
  .products { grid-template-columns: repeat(2, 1fr); }
  .layout, .detail { grid-template-columns: 1fr; }
  .section h2, .detail h1 { font-size: 32px; }
}

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