:root {
  --color-primary: #ffffff;
  --color-on-primary: #000000;
  --color-accent-blue: #0099ff;
  --color-ink: #ffffff;
  --color-ink-muted: #999999;
  --color-canvas: #090909;
  --color-surface-1: #141414;
  --color-surface-2: #1c1c1c;
  --color-hairline: #262626;
  --color-gradient-violet: #6a4cf5;
  --font-display: "GT Walsheim Medium", Geist, Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --rounded-md: 10px;
  --rounded-lg: 15px;
  --rounded-xl: 20px;
  --rounded-pill: 100px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.3;
  font-size: 15px;
}
a { color: var(--color-accent-blue); text-decoration: none; }
.wrap { max-width: 1199px; margin: 0 auto; padding: 0 30px; }

.header { padding: 12px 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-ink); font-size: 18px; }
.search { flex: 1; min-width: 200px; display: flex; }
.search input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--color-hairline);
  background: var(--color-surface-1);
  color: var(--color-ink);
  border-radius: var(--rounded-md) 0 0 var(--rounded-md);
  font-family: var(--font-body);
}
.search button {
  padding: 10px 15px;
  border: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: 0 var(--rounded-pill) var(--rounded-pill) 0;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
}
.links { display: flex; gap: 12px; font-size: 13px; }
.links a { color: var(--color-ink-muted); }

.nav { border-bottom: 1px solid var(--color-hairline); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 8px 30px; }
.nav a { color: var(--color-ink-muted); font-size: 14px; }
.nav a.on { color: var(--color-ink); }

.hero { padding: 24px 0; }
.ph {
  background: var(--color-surface-1);
  color: var(--color-ink-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  border-radius: var(--rounded-xl);
}
.banner {
  height: 200px;
  background: radial-gradient(120% 140% at 10% 0%, #9b7cff, var(--color-gradient-violet));
  color: var(--color-ink);
}

.section { padding: 40px 0; }
.section h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -1px;
  margin: 0 0 20px;
}

.cats { display: flex; flex-wrap: wrap; gap: 8px; }
.cats a {
  background: var(--color-surface-1);
  color: var(--color-ink);
  padding: 8px 14px;
  border-radius: var(--rounded-pill);
  font-size: 13px;
}

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.item {
  background: var(--color-surface-1);
  padding: 12px;
  border-radius: var(--rounded-lg);
  color: var(--color-ink);
}
.item .ph { height: 120px; margin-bottom: 8px; }
.item h3 { margin: 0 0 4px; font-size: 14px; font-weight: 500; }
.price { color: var(--color-ink); font-weight: 700; }
.sub { color: var(--color-ink-muted); font-size: 12px; }

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

.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 30px 0; }
.detail .ph { height: 320px; }
.detail h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -1px;
  margin: 0 0 8px;
  color: var(--color-ink);
}
.sku { color: var(--color-ink-muted); font-size: 13px; margin-bottom: 12px; }
.spec { list-style: none; margin: 0 0 16px; padding: 0; }
.spec li { padding: 8px 0; border-bottom: 1px solid var(--color-hairline); }
.btn {
  display: inline-block;
  padding: 10px 15px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--rounded-pill);
  font-weight: 500;
  margin-right: 8px;
}
.btn-line { background: var(--color-surface-1); color: var(--color-ink); }

table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid var(--color-hairline); padding: 12px 8px; text-align: left; }
.qty {
  width: 48px;
  padding: 4px;
  background: var(--color-surface-1);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
}

.user-list { list-style: none; margin: 0; padding: 0; }
.user-list li {
  background: var(--color-surface-1);
  border-radius: var(--rounded-xl);
  padding: 16px;
  margin-bottom: 8px;
}

.footer { padding: 64px 0 40px; color: var(--color-ink-muted); 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; }
}

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