/* Sibom CN — Design tokens & base
   Industrial Shopify-style Chinese mall
*/

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&family=Outfit:wght@500;600;700&display=swap');

:root {
  --ink: #0e1218;
  --ink-2: #1a2330;
  --ink-3: #2c3a4d;
  --muted: #5a6778;
  --line: #e4e8ee;
  --line-2: #cfd6e0;
  --surface: #ffffff;
  --surface-2: #f5f7fa;
  --surface-3: #eef1f5;
  --accent: #c45c1a;
  --accent-hover: #a34b14;
  --accent-soft: rgba(196, 92, 26, 0.08);
  --ok: #1f7a4c;
  --danger: #b42318;
  --shadow-sm: 0 1px 2px rgba(14, 18, 24, 0.04);
  --radius: 2px;
  --container: 1280px;
  --header-h: 88px;
  --announce-h: 36px;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Outfit", "Noto Sans SC", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  max-width: 100%;
}

main {
  overflow-x: clip;
  max-width: 100%;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--accent-hover);
}

.btn--dark {
  background: var(--ink);
  color: #fff;
}

.btn--dark:hover {
  background: var(--ink-2);
}

.btn--light {
  background: #fff;
  color: var(--ink);
}

.btn--light:hover {
  background: var(--surface-2);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn--outline:hover {
  background: var(--ink);
  color: #fff;
}

.btn--sm {
  min-height: 40px;
  padding: 0 18px;
  font-size: 13px;
}

.btn--block {
  width: 100%;
}

.section-head {
  margin-bottom: 40px;
}

.section-head--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.section-eyebrow {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  font-size: clamp(28px, 3.5vw, 40px);
  color: var(--ink);
}

.section-desc {
  margin: 12px 0 0;
  max-width: 560px;
  color: var(--muted);
  font-size: 16px;
}

.price {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.price--lg {
  font-size: 28px;
}

.price .currency {
  font-size: 0.72em;
  margin-right: 2px;
}

.price--inquire {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
}

/* Product card (shared) */
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  transition: transform 0.35s var(--ease);
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-card__media {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--surface-2);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.product-card:hover .product-card__media img {
  transform: scale(1.04);
}

.product-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px 4px 0;
}

.product-card__model {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.product-card__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__meta {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__price {
  margin-top: auto;
  margin-bottom: 16px;
}

.product-card__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.product-card__actions .btn--cart {
  grid-column: 1 / -1;
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .section-head--row {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    min-height: 44px;
  }
}