:root {
  --color-primary: #024ad8;
  --color-on-primary: #ffffff;
  --color-ink: #1a1a1a;
  --color-on-ink: #ffffff;
  --color-canvas: #ffffff;
  --color-cloud: #f7f7f7;
  --color-fog: #e8e8e8;
  --color-graphite: #636363;
  --color-charcoal: #3d3d3d;
  --color-hairline: #e8e8e8;
  --color-bloom-coral: #ff5050;
  --font-sans: "Forma DJR Micro", Inter, Manrope, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --rounded-md: 4px;
  --rounded-lg: 8px;
  --rounded-xl: 16px;
  --rounded-pill: 9999px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.38;
  font-size: 16px;
}
a { color: var(--color-primary); text-decoration: none; }
.wrap { max-width: 1366px; margin: 0 auto; padding: 0 32px; }

.header { border-bottom: 1px solid var(--color-hairline); padding: 12px 0; }
.header-inner { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.logo { font-weight: 500; color: var(--color-ink); font-size: 22px; }
.search { flex: 1; min-width: 200px; display: flex; }
.search input {
  flex: 1;
  height: 40px;
  padding: 12px 16px;
  border: 1px solid #c2c2c2;
  border-radius: var(--rounded-md) 0 0 var(--rounded-md);
  font-family: var(--font-sans);
}
.search button {
  height: 40px;
  padding: 12px 24px;
  border: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.7px;
  text-transform: uppercase;
  border-radius: 0 var(--rounded-md) var(--rounded-md) 0;
  cursor: pointer;
}
.links { display: flex; gap: 12px; font-size: 13px; }
.links a { color: var(--color-ink); }

.nav { border-bottom: 1px solid var(--color-hairline); background: var(--color-cloud); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 8px 16px; padding: 8px 32px; }
.nav a { color: var(--color-ink); font-size: 14px; padding: 8px 16px; }
.nav a.on { box-shadow: inset 0 -2px 0 var(--color-primary); }

.hero { padding: 24px 0; }
.ph {
  background: var(--color-fog);
  color: var(--color-graphite);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  border-radius: var(--rounded-xl);
}
.banner { height: 200px; }

.section { padding: 32px 0; }
.section h2 { font-size: 24px; font-weight: 500; margin: 0 0 16px; }

.cats { display: flex; flex-wrap: wrap; gap: 8px; }
.cats a {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  padding: 8px 20px;
  border-radius: var(--rounded-pill);
  font-size: 14px;
  font-weight: 500;
}

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.item {
  background: var(--color-canvas);
  box-shadow: 0 2px 8px rgba(26,26,26,0.08);
  padding: 16px;
  border-radius: var(--rounded-xl);
  color: var(--color-ink);
}
.item .ph { height: 140px; margin-bottom: 12px; }
.item h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.price { color: var(--color-ink); font-size: 24px; font-weight: 500; }
.sub { color: var(--color-graphite); 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);
  border-bottom: 1px solid var(--color-hairline);
  font-size: 14px;
}
.side a.on { font-weight: 500; color: var(--color-primary); }

.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 32px 0; }
.detail .ph { height: 320px; }
.detail h1 { font-size: 32px; font-weight: 500; line-height: 1; margin: 0 0 8px; }
.sku { color: var(--color-graphite); font-size: 14px; 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-flex;
  align-items: center;
  height: 44px;
  padding: 12px 24px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--rounded-md);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.7px;
  text-transform: uppercase;
  margin-right: 8px;
}
.btn-line {
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: inset 0 0 0 1px 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; border: 1px solid #c2c2c2; border-radius: var(--rounded-md); }

.user-list { list-style: none; margin: 0; padding: 0; }
.user-list li {
  box-shadow: 0 2px 8px rgba(26,26,26,0.08);
  border-radius: var(--rounded-xl);
  padding: 16px;
  margin-bottom: 8px;
}

.footer {
  background: var(--color-ink);
  color: var(--color-on-ink);
  padding: 48px 0 32px;
  font-size: 13px;
}
.footer p { margin: 0 0 4px; color: #c2c2c2; }

@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; }