:root {
  --color-primary: #111111;
  --color-on-primary: #ffffff;
  --color-canvas: #ffffff;
  --color-soft-cloud: #f5f5f5;
  --color-ink: #111111;
  --color-charcoal: #39393b;
  --color-mute: #707072;
  --color-stone: #9e9ea0;
  --color-hairline: #cacacb;
  --color-hairline-soft: #e5e5e5;
  --color-sale: #d30005;
  --color-sale-deep: #780700;
  --color-success: #007d48;

  --rounded-none: 0px;
  --rounded-sm: 18px;
  --rounded-md: 24px;
  --rounded-lg: 30px;
  --rounded-full: 9999px;

  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 18px;
  --space-xl: 24px;
  --space-section: 48px;

  --font-display: "Nike Futura ND", Futura, "Arial Black", Impact, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-heading: "Helvetica Now Display Medium", "Helvetica Neue", Helvetica, Arial, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Helvetica Now Text", "Helvetica Neue", 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-ink);
  background: var(--color-canvas);
  line-height: 1.5;
  font-size: 16px;
}
a { color: var(--color-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.utility {
  background: var(--color-soft-cloud);
  font-size: 12px;
  font-weight: 500;
  height: 36px;
  box-shadow: inset 0 -1px 0 var(--color-hairline-soft);
}
.utility .wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 36px;
  gap: 16px;
}

.header { background: var(--color-canvas); }
.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  min-height: 56px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-ink);
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.logo:hover { text-decoration: none; }
.search {
  flex: 1;
  min-width: 200px;
  display: flex;
  background: var(--color-soft-cloud);
  border-radius: var(--rounded-md);
  height: 40px;
  overflow: hidden;
}
.search input {
  flex: 1;
  padding: 8px 16px;
  border: 0;
  background: transparent;
  font: inherit;
  outline: none;
}
.search button {
  padding: 0 18px;
  border: 0;
  background: transparent;
  color: var(--color-ink);
  font: 500 14px var(--font-body);
  cursor: pointer;
}
.search:focus-within {
  background: var(--color-canvas);
  box-shadow: 0 0 0 2px var(--color-ink);
}
.links { display: flex; gap: 16px; font-size: 14px; font-weight: 500; }
.links a { color: var(--color-ink); }

.nav { box-shadow: inset 0 -1px 0 var(--color-hairline-soft); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 4px 24px; padding: 0 24px; }
.nav a {
  color: var(--color-ink);
  font-size: 16px;
  font-weight: 500;
  padding: 14px 0 12px;
  border-bottom: 2px solid transparent;
}
.nav a:hover { text-decoration: none; }
.nav a.on { border-bottom-color: var(--color-ink); }

.hero { padding: 0; }
.ph {
  background: var(--color-soft-cloud);
  color: var(--color-stone);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
}
.banner {
  height: 320px;
  background: var(--color-ink);
  color: var(--color-on-primary);
  position: relative;
}
.banner-copy {
  position: absolute;
  left: 40px;
  bottom: 40px;
  color: #fff;
}
.banner-copy h1 {
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 0.9;
  text-transform: uppercase;
  margin: 0 0 12px;
  font-weight: 500;
}

.section { padding: 48px 0; }
.section h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 500;
  margin: 0 0 18px;
  text-transform: uppercase;
}

.cats { display: flex; flex-wrap: wrap; gap: 8px; }
.cats a {
  border: 1px solid var(--color-hairline);
  padding: 8px 16px;
  color: var(--color-ink);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--rounded-full);
  background: var(--color-canvas);
}
.cats a:hover { text-decoration: none; background: var(--color-ink); color: #fff; }

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.item { color: var(--color-ink); padding: 0; }
.item:hover { text-decoration: none; }
.item .ph { height: 240px; margin-bottom: 8px; aspect-ratio: 1; height: auto; }
.item h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.item .sub { color: var(--color-mute); font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.price { color: var(--color-ink); font-weight: 500; }
.price.sale { color: var(--color-sale); }
.price .was { color: var(--color-mute); text-decoration: line-through; margin-left: 8px; font-weight: 500; }
.sub { color: var(--color-mute); font-size: 14px; }

.layout { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 24px 0; }
.side a {
  display: block;
  padding: 12px 0;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-hairline);
  font-size: 16px;
  font-weight: 500;
}
.side a.on { box-shadow: inset 0 -2px 0 var(--color-ink); }

.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 32px 0; }
.detail .ph { height: 480px; }
.detail h1 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 500;
  margin: 0 0 8px;
}
.sku { color: var(--color-mute); font-size: 14px; font-weight: 500; margin-bottom: 12px; }
.spec { list-style: none; margin: 0 0 16px; padding: 0; font-size: 16px; }
.spec li { padding: 24px 0; border-bottom: 1px solid var(--color-hairline); font-weight: 500; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  height: 48px;
  border: 0;
  background: var(--color-ink);
  color: var(--color-on-primary);
  font: 500 16px var(--font-body);
  cursor: pointer;
  margin-right: 8px;
  border-radius: var(--rounded-lg);
}
.btn:hover { text-decoration: none; color: #fff; }
.btn-line {
  background: var(--color-soft-cloud);
  color: var(--color-ink);
}
.btn-line:hover { color: var(--color-ink); }

table { width: 100%; border-collapse: collapse; font-size: 16px; }
th, td { border-bottom: 1px solid var(--color-hairline); padding: 16px 8px; text-align: left; }
.qty { width: 56px; padding: 8px; border: 1px solid var(--color-hairline); border-radius: var(--rounded-md); }

.user-list { list-style: none; margin: 0; padding: 0; }
.user-list li { border-bottom: 1px solid var(--color-hairline); padding: 24px 0; font-weight: 500; }

.footer {
  border-top: 1px solid var(--color-hairline);
  padding: 48px 0 40px;
  color: var(--color-mute);
  font-size: 14px;
  font-weight: 500;
}
.footer p { margin: 0 0 4px; }

@media (max-width: 800px) {
  .products { grid-template-columns: repeat(2, 1fr); }
  .layout, .detail { grid-template-columns: 1fr; }
  .banner-copy h1 { font-size: 40px; }
}

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