:root {
  --ink: #18212f;
  --muted: #68758a;
  --line: #dde2ea;
  --soft: #f3f6fa;
  --surface: #ffffff;
  --accent: #0b3d7a;
  --accent-dark: #072b57;
  --accent-soft: #e8eef8;
  --accent-bright: #2f7dd6;
  --warn: #b45309;
  --radius: 10px;
  --radius-sm: 7px;
  --shadow-sm: 0 1px 2px rgba(11, 26, 51, .05);
  --shadow-md: 0 6px 20px -6px rgba(11, 26, 51, .16);
  --shadow-lg: 0 18px 44px -18px rgba(11, 26, 51, .3);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: #f5f7fb;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .15s ease; }
img { max-width: 100%; display: block; }
h1, h2, h3 { letter-spacing: -.01em; }
input, select, textarea, button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: inherit;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease, transform .1s ease;
}
input:focus, select:focus, textarea:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
button, .primary-link {
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  border-color: var(--accent-dark);
  color: white;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}
button:hover, .primary-link:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); transform: translateY(-1px); }
button:active, .primary-link:active { transform: translateY(0); }
button:disabled { background: #9aa6b2; border-color: #9aa6b2; cursor: not-allowed; box-shadow: none; transform: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: 220px minmax(360px, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 14px 28px;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px -6px rgba(17, 34, 51, .1);
}
.brand {
  display: inline-flex;
  align-items: center;
  width: 220px;
  min-width: 0;
}
.brand-logo {
  width: 100%;
  height: 46px;
  object-fit: contain;
  object-position: left center;
}
.header-search { display: flex; align-items: stretch; min-width: 0; }
.top-search { display: flex; flex: 1; min-width: 0; gap: 8px; }
.header-search .top-search input {
  border-radius: 0;
  border-left: 0;
}
.top-search button { width: 92px; }
.top-nav { display: flex; align-items: center; gap: 18px; color: var(--muted); font-weight: 700; }
.top-nav a { padding: 6px 2px; border-bottom: 2px solid transparent; }
.top-nav a:hover { color: var(--accent-dark); border-bottom-color: var(--accent-soft); }
.cart-nav-link { position: relative; display: inline-flex; align-items: center; }
.cart-nav-link .cart-badge {
  position: absolute;
  top: -2px;
  right: -12px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: #be123c;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
  box-shadow: 0 0 0 2px white;
}
.cart-nav-link--pulse { color: var(--accent-dark); }
.cart-flyer {
  position: fixed;
  z-index: 100;
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  pointer-events: none;
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  transition:
    left .65s cubic-bezier(.2, .8, .2, 1),
    top .65s cubic-bezier(.2, .8, .2, 1),
    transform .65s ease,
    opacity .65s ease;
}
.top-nav span:not(.cart-badge) { color: var(--ink); }
.logout-form { margin: 0; display: flex; align-items: center; }
.logout-form button {
  width: auto;
  min-height: 0;
  padding: 6px 2px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  box-shadow: none;
  transform: none;
}
.logout-form button:hover {
  background: transparent;
  color: var(--accent-dark);
  border-bottom-color: var(--accent-soft);
  box-shadow: none;
  transform: none;
}
.messages { max-width: 1180px; margin: 16px auto 0; padding: 0 20px; }
.message { padding: 12px 14px; border-radius: 6px; background: var(--accent-soft); border: 1px solid #c3d3ec; }
.message.error { background: #fff1f2; border-color: #fecdd3; }

main { max-width: 1240px; margin: 0 auto; padding: 16px 20px 36px; }
.home-top {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 4px;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 36px;
  align-items: center;
  min-height: 380px;
  margin-top: 4px;
  padding: 44px 40px;
  background: linear-gradient(135deg, var(--accent-soft), #ffffff 62%);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}
.home-top .hero {
  flex: 1;
  min-width: 0;
  margin-top: 0;
  border-radius: 16px;
}
.hero h1 { font-size: 44px; margin: 0 0 14px; letter-spacing: -.02em; }
.hero p { max-width: 620px; color: var(--muted); font-size: 18px; margin: 0 0 24px; }
.hero img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

/* Search-bar category entry with a hover/focus mega menu. */
.cat-flyout-nav {
  position: relative;
  z-index: 12;
  flex: none;
  width: 240px;
  overflow: visible;
}
.cat-flyout-nav-head {
  height: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  color: white;
  font-weight: 800;
  font-size: 15px;
  padding: 10px 18px;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
.cat-flyout-nav-head:hover { color: white; background: var(--accent-dark); }
.cat-flyout-trigger-caret {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid currentColor;
  transition: transform .15s ease;
}
.cat-flyout-nav:hover .cat-flyout-trigger-caret,
.cat-flyout-nav:focus-within .cat-flyout-trigger-caret { transform: rotate(180deg); }
.cat-flyout-list {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 240px;
  list-style: none;
  margin: 0;
  padding: 6px 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: var(--shadow-lg);
}
.cat-flyout-nav:hover > .cat-flyout-list,
.cat-flyout-nav:focus-within > .cat-flyout-list { display: block; }
.cat-flyout-item { position: relative; }
.cat-flyout-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}
.cat-flyout-dot { flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.cat-flyout-caret { margin-left: auto; color: #b7c0cb; font-size: 16px; }
.cat-flyout-item:hover > .cat-flyout-link,
.cat-flyout-item:focus-within > .cat-flyout-link {
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.cat-flyout-panel {
  display: none;
  position: absolute;
  left: 100%;
  top: 0;
  width: 640px;
  max-width: 60vw;
  min-height: 100%;
  background: white;
  border: 1px solid var(--line);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-lg);
  padding: 20px 24px;
}
.cat-flyout-item:hover > .cat-flyout-panel,
.cat-flyout-item:focus-within > .cat-flyout-panel { display: block; }
.cat-flyout-panel-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 28px;
  max-height: 420px;
  overflow-y: auto;
}
.cat-flyout-group-title { display: inline-block; margin-bottom: 8px; font-weight: 800; color: var(--ink); }
.cat-flyout-group-title:hover { color: var(--accent-dark); }
.cat-flyout-tags { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.cat-flyout-tags a { color: var(--muted); font-size: 13px; }
.cat-flyout-tags a:hover { color: var(--accent-dark); }
.content-band { margin-top: 16px; }
.section-title, .card-bottom, .cart-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.section-title { padding-bottom: 10px; border-bottom: 2px solid var(--line); }
.section-title h2, .page-head h1 { margin: 0; }
.section-title h2 { position: relative; padding-left: 14px; font-size: 22px; }
.section-title h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
}
.section-title a { color: var(--accent-dark); font-weight: 700; }
.section-title a:hover { color: var(--ink); }
.section-title .section-more-link { margin-left: auto; font-size: 14px; }
.section-kicker { display: block; font-size: 11px; font-weight: 700; letter-spacing: .12em; color: var(--accent); text-transform: uppercase; margin-bottom: 2px; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(4, minmax(180px, 1fr)); }
}
@media (max-width: 820px) {
  .product-grid { grid-template-columns: repeat(3, minmax(160px, 1fr)); }
}
@media (max-width: 560px) {
  .product-grid { grid-template-columns: repeat(2, minmax(140px, 1fr)); }
}
.category-tile, .product-card, .filters, .order-preview, .status-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .18s ease, transform .18s ease;
}
.category-tile { padding: 16px; display: grid; gap: 4px; }
.category-tile:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.category-tile span, .meta, .empty, .page-head p, .product-card p { color: var(--muted); }
.cat-tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.cat-tile {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.cat-tile:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--accent);
}
.cat-tile-media {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--soft);
  overflow: hidden;
}
.cat-tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}
.cat-tile:hover .cat-tile-media img { transform: scale(1.03); }
.cat-tile-name {
  padding: 12px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
.cat-tile:hover .cat-tile-name { color: var(--accent-dark); }

/* 场景推荐：顶部 3 卡（Grainger 风格） */
.home-scenes { margin-top: 12px; }
.home-scenes .section-title { margin-bottom: 12px; }
.section-title-link { color: var(--accent-dark); font-size: 14px; font-weight: 700; }
.section-title-link:hover { color: var(--ink); }
.section-title-meta { color: var(--muted); font-size: 14px; }
.scene-tile-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.scene-tile {
  position: relative;
  display: block;
  width: 100%;
  min-height: 220px;
  overflow: hidden;
  border-radius: 12px;
  background: transparent;
  border: 0;
  box-shadow: none;
  transition: transform .22s ease;
  text-decoration: none;
  color: inherit;
  aspect-ratio: 5 / 3;
}
.scene-tile:hover { transform: translateY(-2px); }
.scene-tile-media {
  position: absolute;
  inset: 0;
  display: block;
  background: transparent;
  overflow: hidden;
}
.scene-tile-media img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  display: block;
  object-fit: cover;
  transition: transform .4s ease;
}
.scene-tile:hover .scene-tile-media img { transform: scale(1.05); }
.scene-tile-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: #fff;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0) 0%,
    rgba(15, 23, 42, .55) 60%,
    rgba(15, 23, 42, .82) 100%
  );
  text-align: left;
}
.scene-tile-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, .45);
}
.scene-tile-sub {
  font-size: 12px;
  color: rgba(255, 255, 255, .95);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .45);
}
.scene-tile-cta {
  margin-top: 2px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .45);
}
.scene-tile:hover .scene-tile-cta { color: var(--ink); }

/* 场景详情页 hero 微调 */
.scene-hero { position: relative; }
.scene-hero-back {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.scene-hero-back:hover { color: var(--ink); }
/* 场景详情页：顶部 横排 hero（图片 + 描述），黄金比例 1 : 1.618 */
.scene-hero { margin-top: 12px; }
.scene-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.618fr);
  gap: 28px;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
@media (max-width: 900px) {
  .scene-hero-card { grid-template-columns: 1fr; }
}
.scene-hero-media {
  position: relative;
  width: 100%;
  min-height: 260px;
  background: #eef2f8;
  overflow: hidden;
}
.scene-hero-media img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.scene-hero-body {
  padding: 28px 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.scene-hero-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 6px;
  color: var(--ink);
  line-height: 1.25;
}
.scene-hero-sub {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.55;
}
.scene-hero-divider {
  height: 1px;
  margin: 16px 0;
  background: var(--line);
}
.scene-hero-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #334155;
  white-space: pre-wrap;
}
/* 场景详情页：商品网格 */
.scene-products { margin-top: 28px; }
.scene-main-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.scene-main-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
  letter-spacing: -.01em;
}
.scene-main-meta {
  font-size: 13px;
  color: var(--muted);
}
.empty-state {
  padding: 60px 20px;
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: 12px;
  color: var(--muted);
}
.empty-state .ghost-button {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}
.empty-state .ghost-button:hover {
  background: var(--accent-soft);
  color: var(--ink);
}
.category-mega-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.category-mega-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
  transition: box-shadow .18s ease, transform .18s ease;
}
.category-mega-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.category-mega-title {
  display: inline-flex;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  width: 100%;
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 800;
}
.category-mega-title:hover { color: var(--accent); }
.category-mega-children {
  display: grid;
  gap: 12px;
}
.category-mega-group > a {
  font-weight: 800;
}
.category-mega-group > a:hover { color: var(--accent-dark); }
.category-mega-group div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-top: 5px;
}
.category-mega-group div a {
  color: var(--muted);
  font-size: 13px;
}
.category-mega-group div a:hover { color: var(--accent-dark); }
.product-card { overflow: hidden; display: flex; flex-direction: column; aspect-ratio: 9 / 16; }
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-card--group-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  flex: 1;
}
.product-card--group-link .product-image {
  overflow: hidden;
  flex-shrink: 0;
  aspect-ratio: 1 / 1;
}
.product-card--group-link .product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--soft);
  transition: transform .25s ease;
}
.product-card--group-link:hover .product-image img { transform: scale(1.03); }
.product-card--group-link .product-body {
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}
.product-card--group-link .product-name {
  font-weight: 800;
  min-height: unset;
  color: inherit;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card--group-link:hover .product-name { color: var(--accent-dark); }
.product-capacity { color: var(--muted); font-size: 12px; }
.product-image { overflow: hidden; background: var(--soft); aspect-ratio: 1 / 1; flex-shrink: 0; }
.product-image img { width: 100%; height: 100%; object-fit: contain; background: var(--soft); transition: transform .25s ease; }
.product-card:hover .product-image img { transform: scale(1.03); }
.product-body { padding: 8px 10px 10px; display: grid; gap: 4px; flex: 1; }
.product-name { font-size: 14px; font-weight: 800; line-height: 1.3; color: var(--accent-dark); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-card:hover .product-name { color: var(--accent-dark); }
.card-sku-code {
  font-size: 11px;
  color: var(--accent-dark);
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-specs-row { display: flex; gap: 8px; font-size: 11px; color: var(--muted); overflow: hidden; }
.spec-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;           /* 图标和文字之间的间距 */
  background-color: #eef3f9;
  padding: 2px 10px 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: #333;
  white-space: nowrap; /* 标签内文字不换行 */
  flex-shrink: 0;     /* 不压缩 */
}

.spec-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}
.card-sku-specs { display: flex; flex-direction: column; gap: 4px; }
.card-sku-row { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.card-spec-icon { flex-shrink: 0; color: var(--muted); }
.card-spec-code { font-weight: 700; color: var(--ink); font-size: 12px; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; }
.product-brand-tag {
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 3px 10px;
  font-weight: 700;
  font-size: 12px;
  white-space: nowrap;
}
.product-spec {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}
.card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.card-bottom strong { color: var(--warn); font-size: 16px; }
.sku-count {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
}
.card-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.card-price .price {
  font-size: 16px;
  font-weight: 700;
  color: var(--warn);
}
.card-price .price-sale {
  font-size: 14px;
  font-weight: 700;
  color: #d32f2f;
}
.card-price .price-guest {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
}
/* ---- filter panels ---- */
/* ---- filter panels ---- */
.filter-panels { display: flex; flex-direction: column; gap: 8px; padding: 14px; }

.filter-panel {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.filter-panel:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 100, 200, 0.08);
}

.filter-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  cursor: pointer;
  background: #f7f7f7;
  border-bottom: 1px solid #e2e2e2;
  transition: background .12s;
}
.filter-panel-header:hover { background: #eef1f5; }
.is-closed .filter-panel-header { border-bottom-color: transparent; }

.filter-panel-title {
  font-size: 13px;
  font-weight: 600;
  color: #222;
  flex: 1;
  letter-spacing: .01em;
}
.filter-panel-meta {
  font-size: 11px;
  color: #999;
  font-weight: 500;
  background: #eee;
  padding: 1px 6px;
  border-radius: 10px;
  letter-spacing: 0;
}
.filter-panel-arrow { color: #bbb; flex-shrink: 0; transition: transform .2s ease; }
.is-closed .filter-panel-arrow { transform: rotate(-90deg); }

.filter-options-list { display: flex; flex-direction: column; gap: 3px; }

.filter-chip {
  display: flex;
  align-items: center;
  gap: 9px;
  background: #f7f7f7;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  color: #444;
  cursor: pointer;
  transition: border-color .12s, background .12s, color .12s;
}
.filter-chip:hover { border-color: #c5d9f5; background: #eef4fd; color: #1a56ad; }
.filter-chip:has(input:checked) {
  border-color: #1a56ad;
  background: #eef4fd;
  color: #1a56ad;
}
.filter-chip-check {
  width: 15px; height: 15px; flex-shrink: 0;
  border: 1.5px solid #ccc; border-radius: 4px;
  transition: border-color .12s, background .12s;
  position: relative;
}
.filter-chip:has(input:checked) .filter-chip-check {
  border-color: #1a56ad; background: #1a56ad;
}
.filter-chip:has(input:checked) .filter-chip-check::after {
  content: '';
  position: absolute; inset: 2px;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 6L5 9L10 3' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
}
.filter-chip input[type="checkbox"] { display: none; }

.pagination-jump {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
.pagination-jump input {
  width: 52px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13px;
  text-align: center;
}

.page-head { margin-bottom: 10px; display: flex; flex-direction: column; gap: 3px; }
.page-head .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
}
.page-head .breadcrumb a {
  color: var(--accent-dark);
  font-weight: 700;
}
.page-head .breadcrumb span { color: #b8c0ca; }
.catalog-title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.5px;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
.catalog-layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 20px; align-items: start; }
.catalog-layout--full { grid-template-columns: minmax(0, 1fr); }
.filters { padding: 16px; position: sticky; top: 90px; }
.filters form, .checkout-form, .buy-box { display: grid; gap: 12px; }
.category-tree {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.category-tree h2 {
  margin: 0 0 4px;
  font-size: 17px;
}

/* 3-level collapsible category accordion */
.cat-accordion { display: grid; gap: 2px; }
.cat-node { border-radius: var(--radius-sm); }
.cat-node > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
}
.cat-node > summary::-webkit-details-marker { display: none; }
.cat-node > summary::before {
  content: '';
  flex: none;
  width: 7px;
  height: 7px;
  margin-left: 1px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  transition: transform .15s ease;
}
.cat-node[open] > summary::before { transform: rotate(45deg); }
.cat-node > summary:hover { background: var(--soft); }
.cat-node > summary a {
  flex: 1;
  min-width: 0;
  font-weight: 800;
  color: var(--ink);
}
.cat-node--sub > summary a { font-weight: 700; font-size: 13.5px; }
.cat-children {
  display: grid;
  gap: 2px;
  margin: 2px 0 6px;
  padding-left: 17px;
  border-left: 1px dashed var(--line);
}
.cat-children--leaf { padding-left: 17px; }
.cat-root, .cat-mid, .cat-leaf {
  display: block;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 13px;
}
.cat-root { color: var(--ink); font-weight: 800; font-size: 14px; }
.cat-mid { font-weight: 700; }
.cat-root:hover, .cat-mid:hover, .cat-leaf:hover { background: var(--soft); color: var(--accent-dark); }
.cat-accordion a.active {
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 800;
}
label { display: grid; gap: 6px; font-weight: 700; }
.ghost-button { display: inline-flex; justify-content: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; }
.result-count { margin-bottom: 12px; color: var(--muted); }

/* Category detail panel: category and brand filter chips */
.category-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 0;
  margin-bottom: 14px;
}
.category-panel-body {
  padding: 8px 18px 10px;
}
.category-panel-body-top {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}
.category-panel-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 5px 0;
  flex-wrap: wrap;
}
.category-panel-row + .category-panel-row {
  border-top: 1px solid var(--line);
}
.category-panel-label {
  flex: none;
  padding-top: 4px;
  color: var(--ink);
  font-weight: 700;
  font-size: 13px;
  min-width: 40px;
  letter-spacing: 0.3px;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
.category-panel-count {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.category-panel-chips { display: flex; flex-wrap: wrap; gap: 8px 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--line);
  transition: all 0.15s ease;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
.chip:hover { background: var(--accent-soft); color: var(--accent-dark); border-color: var(--accent-soft); }
.chip.active { background: var(--accent); color: white; border-color: var(--accent); font-weight: 700; }
.expand-trigger {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  white-space: nowrap;
  flex-shrink: 0;
}
.expand-trigger:hover { background: var(--accent-soft); color: var(--accent-dark); border-color: var(--accent-soft); }
.expand-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-size: 14px;
  line-height: 1;
}
.expand-trigger.is-expanded .expand-arrow { transform: rotate(90deg); }

.chip--with-icon {
  gap: 6px;
  padding-left: 6px;
}
.chip-icon {
  width: 20px;
  height: 20px;
  object-fit: cover;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line);
}

/* Sort bar */
.sort-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 14px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  width: fit-content;
}
.sort-tab {
  padding: 8px 16px;
  border-radius: 5px;
  color: var(--muted);
  font-weight: 700;
  font-size: 13.5px;
}
.sort-tab:hover { color: var(--accent-dark); }
.sort-tab.active { background: var(--accent); color: white; }

/* Quick add-to-cart on listing cards */
.card-quick-buy { display: flex; gap: 8px; }
.card-quick-buy.ghost-button { justify-content: center; align-items: center; width: 100%; min-height: 38px; padding: 8px 10px; font-size: 13px; font-weight: 700; text-align: center; }
.login-gate-hint {
  flex: 1;
  padding: 10px 0;
  color: var(--muted);
  font-size: 14px;
  display: flex;
  align-items: center;
}
.card-quick-buy input {
  width: 64px;
  flex: none;
  padding: 8px;
  text-align: center;
}
.card-quick-buy button {
  flex: 1;
  min-height: 0;
  padding: 8px 10px;
  font-size: 13px;
}
.pagination-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 20px;
  margin: 0;
  border-top: 1px solid var(--line);
}
.pagination-total {
  margin-right: auto;
  color: var(--ink);
  white-space: nowrap;
}
.pagination-pages {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: white;
  color: var(--ink);
  font-weight: 700;
  font-size: 13px;
}
.page-button.active {
  border-color: #1a56ad;
  color: #1a56ad;
  background: #eef4fd;
  font-weight: 700;
}
.page-button:hover:not(.active):not(.disabled) {
  border-color: #1a56ad;
  color: #1a56ad;
  background: #f5f8ff;
}
.page-button.disabled {
  color: #ccc;
  background: #f7f7f7;
  cursor: not-allowed;
}
.page-ellipsis {
  min-width: 34px;
  text-align: center;
  color: #9aa6b2;
  font-weight: 800;
}
.page-size-form,
.jump-form {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}
.page-size-form select {
  width: 122px;
  height: 38px;
  padding: 6px 10px;
  border-radius: 4px;
  background: white;
  font-weight: 700;
}
.page-size-form select:focus,
.jump-form input:focus {
  outline: 0;
  border-color: var(--accent-bright);
  box-shadow: 0 0 0 3px rgba(47, 125, 214, .16);
}
.jump-form span {
  white-space: nowrap;
}
.jump-form input {
  width: 72px;
  height: 38px;
  padding: 6px 8px;
  border-radius: 4px;
  text-align: center;
}
.jump-form button {
  width: auto;
  min-height: 38px;
  padding: 6px 12px;
  border-radius: 4px;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  max-width: 960px;
  margin: 0 auto;
}
.product-hero {
  margin-top: 4px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
}
.product-gallery-card {
  min-width: 0;
  border: 1px solid #e4e9f0;
  border-radius: 14px;
  overflow: hidden;
  background: #f8fafc;
}
.product-gallery-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 380px;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 255, 255, .98), rgba(242, 246, 250, .92) 68%),
    linear-gradient(135deg, #f8fafc, #eef3f8);
}
.product-gallery-stage img {
  width: 100%;
  max-height: 440px;
  object-fit: contain;
  filter: drop-shadow(0 12px 18px rgba(20, 34, 51, .10));
}
.product-gallery-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1;
  padding: 6px 10px;
  border: 1px solid #d9e1ec;
  border-radius: 999px;
  background: rgba(255, 255, 255, .9);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
}
.product-gallery-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  border-top: 1px solid #e4e9f0;
  background: white;
  color: var(--muted);
  font-size: 12px;
}
.product-gallery-foot a {
  color: var(--accent);
  font-weight: 800;
  white-space: nowrap;
}

/* Gallery thumbnails */
.gallery-thumbnails {
  display: flex;
  gap: 6px;
  padding: 8px 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.gallery-thumb {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  padding: 2px;
  border: 2px solid transparent;
  border-radius: 6px;
  background: none;
  cursor: pointer;
  overflow: hidden;
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}
.gallery-thumb.is-active,
.gallery-thumb:hover {
  border-color: var(--accent);
}
.gallery-thumb:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.product-gallery-card .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 12px;
  color: #333;
  margin-bottom: 10px;
}
.product-gallery-card .breadcrumb a {
  color: #333;
  font-weight: 600;
}
.product-gallery-card .breadcrumb a:hover { color: #000; }
.product-gallery-breadcrumb { margin-bottom: 10px; }
.breadcrumb, .lead { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent-dark); }
.detail-main {
  min-width: 0;
  padding: 4px 4px 2px 0;
}
.product-brand-label {
  display: inline-flex;
  margin-top: 24px;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
}
.product-brand-top {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}
.product-tax-price {
  margin: 8px 0;
  font-size: 15px;
  color: #dc3545;
  font-weight: 700;
}
.tax-price-value {
  font-size: 28px;
}
.detail-main h1 {
  max-width: 700px;
  margin: 10px 0 6px;
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1.2;
}
.product-detail-title span { white-space: nowrap; }
.detail-main .lead {
  margin: 0 0 18px;
  font-size: 16px;
}
.product-service-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 22px 0;
  padding: 13px 0;
  border-block: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.product-service-strip span::before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin-right: 7px;
  border-radius: 50%;
  background: #e7f6ee;
  color: #16804a;
  font-size: 11px;
  font-weight: 900;
}
.spec-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.spec-list div, .sku-panel div {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}
.spec-list dt, .sku-panel span { color: #333; font-size: 13px; }
.spec-list dd { margin: 2px 0 0; font-weight: 800; word-break: break-word; }
.sku-category-attribute span:last-child { font-weight: 400; }
.sku-code-highlight { font-weight: 400;  }
.mini-spec-list {
  display: grid;
  gap: 8px;
  margin: 0;
}
.mini-spec-list div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 10px;
}
.mini-spec-list dt {
  color: var(--muted);
}
.mini-spec-list dd {
  margin: 0;
  font-weight: 400;
}
.buy-box {
  padding: 20px;
  border: 1px solid #d9e2ed;
  border-radius: 12px;
  background: linear-gradient(180deg, #fbfdff, #f4f7fb);
  box-shadow: var(--shadow-sm);
}
.detail-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0 0;
  border-top: 1px dashed #d9e2ed;
  margin-top: 4px;
}
.detail-price .detail-price-list {
  font-size: 14px;
  color: var(--muted);
  text-decoration: line-through;
}
.detail-price .detail-price-current {
  font-size: 26px;
  font-weight: 700;
  color: var(--warn);
}
.detail-price .price-guest {
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
}
.buy-actions { display: flex; align-items: stretch; gap: 14px; margin-top: 16px; }
.quantity-stepper { display: grid; grid-template-columns: 46px 76px 46px; min-height: 48px; }
.quantity-stepper .quantity-step-button {
  width: 46px;
  min-height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--soft);
  color: var(--muted);
  box-shadow: none;
  font-size: 24px;
  font-weight: 500;
}
.quantity-stepper .quantity-step-button:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.quantity-stepper .quantity-step-button:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.quantity-stepper .quantity-step-button:hover { background: var(--accent-soft); color: var(--accent-dark); box-shadow: none; transform: none; }
.quantity-stepper input {
  width: 76px;
  min-width: 0;
  border-inline: 0;
  border-radius: 0;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  appearance: textfield;
}
.quantity-stepper input::-webkit-inner-spin-button,
.quantity-stepper input::-webkit-outer-spin-button { margin: 0; appearance: none; }
.buy-actions-submit { width: auto; min-width: 180px; min-height: 48px; }
.sku-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.attachment-list { display: flex; flex-wrap: wrap; gap: 10px; }
.attachment-list a { padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: white; }
.attachment-list a:hover { border-color: var(--accent); color: var(--accent-dark); box-shadow: var(--shadow-sm); }

.product-detail-gallery {
  scroll-margin-top: 88px;
}
.pagination-bar {
  scroll-margin-top: 88px;
}
.product-detail-gallery-title {
  align-items: end;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.product-detail-gallery-title > div {
  display: grid;
  gap: 2px;
}
.product-detail-gallery-title h2 {
  margin: 0;
  font-size: 22px;
}
.product-detail-gallery-title p,
.product-detail-gallery-title > span {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.section-kicker {
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
}
.product-detail-image-list {
  display: grid;
  gap: 12px;
  width: min(720px, 100%);
  margin: 20px auto 0;
}
.product-detail-image {
  display: block;
  width: 100%;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid #e1e7ee;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.product-detail-image:hover {
  border-color: #c6d3e2;
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.product-detail-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}
.product-image-lightbox {
  width: min(1100px, calc(100vw - 40px));
  max-height: calc(100vh - 40px);
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 14px;
  background: transparent;
}
.product-image-lightbox::backdrop {
  background: rgba(6, 16, 30, .84);
  backdrop-filter: blur(4px);
}
.product-image-lightbox img {
  width: 100%;
  max-height: calc(100vh - 40px);
  object-fit: contain;
  border-radius: 14px;
  background: white;
}
.product-image-lightbox-close {
  position: absolute;
  top: -15px;
  right: -15px;
  z-index: 1;
  width: 38px;
  min-height: 38px;
  padding: 0;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--ink);
  color: white;
  font-size: 26px;
  line-height: 1;
  box-shadow: var(--shadow-md);
}

.product-documents { }
.document-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.document-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .15s, box-shadow .15s;
}
.document-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.document-item svg { flex-shrink: 0; color: var(--accent); }
.document-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.variant-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.variant-section-title h2 { margin-bottom: 2px; }
.variant-section-title p { margin: 0; color: var(--muted); }
.variant-section-title > span { color: var(--muted); font-weight: 700; }
.variant-browser { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 18px; align-items: start; }
.variant-filters, .variant-results {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.variant-filters { display: flex; flex-direction: column; }
.variant-results { align-self: stretch; }

.filter-panels { flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.filter-panel { border-bottom: 1px solid #eee; }
.filter-panel:last-child { border-bottom: none; }
.filter-panel-body { overflow-y: auto; max-height: 620px; scrollbar-width: thin; scrollbar-color: #ccc transparent; padding: 8px 14px 12px; }
.variant-filter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid #e8e8e8;
  font-size: 13px;
}
.variant-filter-head strong { font-weight: 600; color: #222; font-size: 13px; letter-spacing: .01em; }
.variant-filter-head a { color: var(--muted); font-size: 12px; }
.variant-filter-head a:hover { color: #1a56ad; }
.variant-results.is-loading, [data-product-region].is-loading { opacity: .55; pointer-events: none; }
.variant-search {
  display: flex;
  gap: 8px;
  padding: 13px 16px;
  border-bottom: 1px solid #e8e8e8;
}
.variant-search input[type="search"] {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  font-size: 13px;
  background: #fafafa;
  color: #333;
  transition: border-color .15s, background .15s;
  outline: none;
}
.variant-search input[type="search"]:focus {
  border-color: #1a56ad;
  background: white;
}
.variant-search button {
  width: 72px;
  padding: 8px 0;
  background: #1a56ad;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  letter-spacing: .02em;
}
.variant-search button:hover { background: #1447a0; }
.variant-list { display: grid; }
.variant-list-region { display: flex; flex-direction: column; }
.variant-pagination {
  margin: 0;
  border-top: 1px solid #eee;
  border-radius: 0;
  box-shadow: none;
  background: #fafafa;
}
.variant-row { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 16px; align-items: center; padding: 16px 18px; border-bottom: 1px solid #eee; transition: background .1s; }
.variant-row:last-child { border-bottom: 0; }
.variant-row:hover { background: #fafbfd; }
.variant-row.is-base { background: linear-gradient(90deg, #f0f4ff, white 30%); }
.variant-row-info { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.variant-row-info-top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px 10px; }
.variant-row-info-top > a { font-size: 15px; font-weight: 600; color: #1a1a1a; flex: 1; min-width: 0; transition: color .12s; }
.variant-row-info-top > a:hover { color: #1a56ad; }
.variant-row-info-top > span { color: #888; font-size: 12px; white-space: nowrap; }

.variant-row-attrs { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.variant-row-attrs div[data-attr] { display: flex; gap: 4px; font-size: 12px; white-space: nowrap; color: #666; }
.variant-row-attrs dt { color: #aaa; font-weight: 400; }
.variant-row-attrs dd { margin: 0; font-weight: 500; color: #444; }

.variant-row-price { display: flex; flex-direction: column; color: var(--muted); }
.variant-row-price strong { color: #1a56ad; font-size: 18px; }
.variant-buy { display: flex; align-items: stretch; gap: 8px; }
.variant-buy input { min-width: 0; }
.variant-buy > button {
  flex: 1;
  width: auto;
  min-width: 120px;
  padding: 9px 12px;
  background: #1a56ad;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
}
.variant-buy > button:hover { background: #1447a0; }
.variant-buy > button:disabled {
  background: #ccc;
  color: #888;
  cursor: not-allowed;
}
.variant-empty { padding: 36px 20px; text-align: center; }

.table-wrap { overflow-x: auto; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.data-table { width: 100%; border-collapse: collapse; min-width: 780px; }
.data-table th, .data-table td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { background: var(--soft); }

.color-code-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 6px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 12px;
  color: var(--muted);
}
.data-table tbody tr:hover { background: var(--soft); }
.inline-form { display: flex; gap: 8px; min-width: 170px; }
.inline-form button { width: 76px; }
.cart-quantity-form { min-width: 134px; align-items: stretch; }
.cart-quantity-form .quantity-step-button { width: 38px; }
.quantity-stepper--compact { grid-template-columns: 36px 56px 36px; min-height: 38px; }
.quantity-stepper--compact .quantity-step-button { min-height: 38px; font-size: 18px; border-radius: 5px; }
.quantity-stepper--compact input { width: 56px; min-height: 38px; padding-inline: 4px; font-size: 14px; }
.danger { background: #be123c; border-color: #be123c; }
.cart-summary { margin-top: 16px; padding: 16px; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; }

.checkout-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 22px; align-items: start; }
.checkout-main { display: grid; gap: 18px; min-width: 0; }
.address-current-panel,
.checkout-form,
.order-preview {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
}
.address-current-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.address-current-head h2 { margin: 0; font-size: 16px; }
.required-mark { color: #be123c; }
.optional-mark { color: var(--muted); font-size: 13px; font-weight: 400; }
.address-current-box {
  position: relative;
  border: 1px solid #c3d3ec;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  padding: 16px;
}
.inline-action-button { width: auto; min-width: 120px; }
.text-link {
  background: transparent !important;
  border: none;
  box-shadow: none !important;
  color: var(--accent-dark);
  width: auto;
  min-height: auto;
  padding: 0;
  font-weight: 700;
  transform: none !important;
}
.text-link:hover,
.text-link:focus,
.text-link:active {
  color: var(--accent-dark);
  background: transparent !important;
  box-shadow: none !important;
  transform: none !important;
}
.text-button {
  background: transparent;
  border: none;
  box-shadow: none;
  color: var(--muted);
  width: auto;
  min-height: auto;
  padding: 0;
  font-weight: 700;
}
.text-button:hover { color: var(--accent-dark); background: transparent; transform: none; }
.danger-text { color: #be123c; }
.danger-text:hover { color: #9f1239; }

.address-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.address-grid--page { margin-top: 4px; }
.address-grid-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 148px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: white;
  overflow: hidden;
  cursor: pointer;
}
.address-grid-card-main { padding: 14px 14px 10px; display: grid; gap: 8px; flex: 1; }
.address-grid-card.is-selected { border-color: var(--accent); }
.address-grid-card.is-selected {
  box-shadow: inset 0 0 0 1px var(--accent);
  background: var(--accent-soft);
}
.address-grid-card.is-selected::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, transparent 50%, var(--accent) 50%);
}
.address-grid-badge {
  position: absolute;
  top: 0;
  left: 0;
  padding: 2px 8px;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  color: white;
  font-size: 12px;
  font-weight: 700;
  border-radius: 0 0 var(--radius-sm) 0;
}
.address-grid-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}
.address-grid-pin {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  flex: none;
}
.address-grid-tag { color: var(--accent-dark); font-weight: 700; }
.address-grid-line { font-size: 15px; line-height: 1.45; }
.address-grid-contact { color: var(--muted); font-size: 13px; }
.address-grid-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px 0;
  border-top: none;
  background: transparent;
}
.address-grid-actions form { margin: 0; width: auto; }

.address-modal[hidden] { display: none !important; }
.address-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 24px;
}
.address-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, .45);
}
.address-modal-panel {
  position: relative;
  width: min(920px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.address-modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  box-shadow: none;
  color: var(--muted);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}
.address-modal-close:hover {
  background: transparent;
  color: var(--accent-dark);
  transform: none;
  box-shadow: none;
}
.address-modal-tabs {
  display: flex;
  gap: 28px;
  padding: 18px 24px 0;
  border-bottom: 1px solid var(--line);
}
.address-modal-tab {
  background: transparent !important;
  border: none;
  box-shadow: none !important;
  width: auto;
  min-height: auto;
  padding: 0 0 14px;
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  transform: none !important;
}
.address-modal-tab.active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
}
.address-modal-tab:hover,
.address-modal-tab:focus,
.address-modal-tab:active {
  background: transparent !important;
  box-shadow: none !important;
  transform: none !important;
  color: var(--ink);
}
.address-modal-tab.active:hover,
.address-modal-tab.active:focus,
.address-modal-tab.active:active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
}
.address-modal-body { padding: 20px 24px; }
.address-modal-pane[hidden] { display: none !important; }
.address-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 0 24px 24px;
}
.address-modal-footer .ghost-button,
.address-modal-footer button { width: auto; min-width: 96px; }

.address-modal-form { display: grid; gap: 16px; }
.address-form-row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}
.address-form-row--region .address-region-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.address-form-row--checkbox {
  grid-template-columns: 108px minmax(0, 1fr);
  align-items: center;
}
.address-form-row--checkbox input[type="checkbox"] { width: auto; }
.address-form-label { padding-top: 10px; color: var(--ink); font-weight: 700; }
.address-form-label em { color: var(--accent); font-style: normal; }
.address-label-tags { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.address-label-tag,
.address-label-custom {
  width: auto;
  min-height: 34px;
  padding: 6px 14px;
  border-radius: 999px;
}
.address-label-tag {
  background: var(--soft);
  border: 1px solid var(--line);
  box-shadow: none;
  color: var(--ink);
  font-weight: 700;
}
.address-label-tag:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-soft);
  transform: none;
}
.address-label-tag.active {
  border-color: var(--accent);
  color: white;
  background: var(--accent);
  transform: none;
}
.address-label-custom { max-width: 140px; }

body.modal-open { overflow: hidden; }
.preview-note { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.checkout-form, .order-preview { background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 18px; }
.checkout-form h2 { margin: 4px 0 0; font-size: 16px; }
.field-error { color: #be123c; font-size: 13px; }
.preview-line { display: grid; gap: 4px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.preview-line em { color: var(--muted); font-style: normal; }
.preview-total { margin-top: 14px; font-weight: 800; color: var(--warn); }
.status-panel { display: grid; gap: 8px; padding: 16px; margin-bottom: 18px; }
.verify-form { max-width: 420px; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 18px; }
.auth-panel {
  max-width: 460px;
  margin: 28px auto;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 24px;
}
.auth-panel h1 { margin: 0 0 8px; }
.auth-panel p { color: var(--muted); }
.auth-form { display: grid; gap: 12px; margin-top: 18px; }
.auth-form small { color: var(--muted); font-size: 12px; }
.auth-switch a { color: var(--accent-dark); font-weight: 800; }

.profile-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}
.profile-nav {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: sticky;
  top: 90px;
}
.profile-nav-head {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}
.profile-nav-head strong { font-size: 16px; }
.profile-nav-head span { color: var(--muted); font-size: 13px; word-break: break-all; }
.profile-nav nav { display: grid; padding: 8px; }
.profile-nav a {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  color: var(--ink);
}
.profile-nav a:hover { background: var(--accent-soft); color: var(--accent-dark); }
.profile-nav a.active { background: var(--accent-soft); color: var(--accent-dark); }
.profile-content { min-width: 0; }
.profile-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.profile-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
  display: grid;
  gap: 8px;
}
.profile-card h2 { margin: 0; font-size: 16px; }
.profile-card p { margin: 0; color: var(--muted); }
.profile-card a { color: var(--accent-dark); font-weight: 800; }
.profile-section { margin-top: 8px; }
.profile-form, .address-list { max-width: 640px; }
.profile-form {
  display: grid;
  gap: 12px;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
}
.form-actions { display: flex; gap: 10px; align-items: center; }
.form-actions .ghost-button { width: auto; min-width: 96px; }
.profile-head-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.address-list { display: grid; gap: 14px; }
.address-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 16px;
  display: grid;
  gap: 8px;
}
.address-card-head { display: flex; align-items: center; gap: 10px; }
.address-card p { margin: 0; color: var(--muted); }
.address-card-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}
.address-card-actions form { margin: 0; width: auto; }
.address-card-actions button { width: auto; min-width: 72px; padding-inline: 14px; }
.address-card-actions a { color: var(--accent-dark); font-weight: 800; }

.site-footer {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: white;
}

@media (max-width: 820px) {
  .site-header, .hero, .catalog-layout, .detail-layout, .checkout-layout, .profile-layout { grid-template-columns: 1fr; }
  .site-header { position: static; }
  .brand {
    width: min(240px, 100%);
  }
  .top-nav { justify-content: space-between; }
  .hero { min-height: unset; }
  .hero h1 { font-size: 34px; }
  .filters { position: static; }
  .home-top { flex-direction: column; }
  .header-search { width: 100%; }
  .cat-flyout-nav { width: 150px; }
  .cat-flyout-nav-head { width: 100%; padding-inline: 12px; }
  .cat-flyout-list { width: min(300px, calc(100vw - 56px)); }
  .home-top .hero { border-radius: 16px; }
  .cat-flyout-panel { display: none !important; }
  .cat-flyout-caret { display: none; }
  .spec-list, .sku-panel { grid-template-columns: 1fr; }
  .category-panel-row { flex-direction: column; gap: 6px; }
  .sort-bar { width: 100%; overflow-x: auto; }
  .pagination-bar { justify-content: flex-start; }
  .pagination-total { width: 100%; }
  .pagination-pages { overflow-x: auto; max-width: 100%; padding-bottom: 2px; }
  .profile-cards { grid-template-columns: 1fr 1fr; }
  .profile-nav { position: static; }
  .profile-head-row { flex-direction: column; }
  .address-grid { grid-template-columns: 1fr; }
  .address-form-row,
  .address-form-row--checkbox { grid-template-columns: 1fr; }
  .address-form-row--region .address-region-fields { grid-template-columns: 1fr; }
  .address-modal { padding: 12px; }
  .variant-browser { grid-template-columns: 1fr; }
  .variant-row { grid-template-columns: 1fr; gap: 12px; }
  .variant-buy { width: 100%; }
  .scene-tile-grid { grid-template-columns: 1fr; gap: 14px; }
  .buy-actions { align-items: stretch; }
  .buy-actions-submit { flex: 1; min-width: 0; }
  .gallery-thumbnails { gap: 4px; }
  .gallery-thumb { width: 44px; height: 44px; }
  .product-gallery-stage { min-height: 280px; padding: 12px; }
  .product-gallery-stage img { height: 240px; }
  .product-gallery-foot { align-items: flex-start; flex-direction: column; }
  .product-gallery-card .breadcrumb { font-size: 11px; }
  .product-tax-price { font-size: 14px; }
  .tax-price-value { font-size: 22px; }
  .detail-main h1 { font-size: 30px; }
  .product-detail-gallery-title { align-items: flex-start; flex-direction: column; gap: 8px; }
  .product-detail-image-list { gap: 10px; }
  .product-image-lightbox { width: calc(100vw - 24px); }
}

/* === 商品卡片：品牌徽标 + 同款色号徽标（覆盖在图片上） === */
.product-card { position: relative; }

.product-card .product-image { position: relative; display: block; overflow: hidden; }
.product-card .product-brand-corner {
  position: absolute; left: 8px; bottom: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: #111;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  z-index: 2;
  pointer-events: none;
}
.product-card .product-variant-badge {
  position: absolute; right: 8px; top: 8px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(194, 65, 12, 0.92);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  z-index: 2;
  pointer-events: none;
}

/* === 价格条放在卡片顶部（product-body 内最上方） === */
.product-card .card-price--top {
  display: flex; align-items: baseline; gap: 8px;
  margin: 0 0 6px;
  padding: 4px 0 6px;
  border-bottom: 1px dashed var(--line);
}
.product-card .card-price--top .price {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-dark, #c2410c);
}
.product-card .card-price--top .price-list {
  font-size: 12px;
  color: var(--muted);
  text-decoration: line-through;
}
.product-card .card-price--top .price-guest {
  font-size: 12px;
  color: var(--muted);
}

/* === 同款色号缩略图条 === */
.product-variant-strip {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 6px 0 10px;
  padding: 0;
  list-style: none;
}
.product-variant-chip {
  display: inline-flex; align-items: center; gap: 4px;
  max-width: 100%;
  padding: 3px 8px 3px 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.product-variant-chip:hover { border-color: var(--accent); color: var(--accent-dark); }
.product-variant-chip.is-active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(194, 65, 12, 0.06);
}
.product-variant-chip .swatch {
  width: 12px; height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  flex: none;
}
.product-variant-chip-name {
  max-width: 80px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.product-variant-overflow {
  display: inline-flex; align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.04);
  font-size: 12px;
  color: var(--muted);
}

/* === 型号小标签（替代原 brand-tag 位置） === */
.product-card .product-style-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 4px;
  background: var(--bg-soft, #f3f4f6);
  font-size: 11px;
  color: var(--muted);
}

/* === 加入购物车按钮小一档 === */
.product-card .card-quick-buy button {
  min-height: 30px !important;
  padding: 5px 10px !important;
  font-size: 12px !important;
  border-radius: 6px;
}
.product-card .card-quick-buy input {
  width: 56px;
  padding: 6px;
  font-size: 12px;
}
.product-card .card-quick-buy.ghost-button {
  min-height: 32px;
  padding: 6px 10px;
  font-size: 12px;
}

@media (max-width: 720px) {
  .product-card .product-brand-corner { font-size: 11px; padding: 3px 8px; }
  .product-card .product-variant-badge { font-size: 10px; padding: 2px 8px; }
  .product-card { aspect-ratio: 3 / 4; }
}