:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: rgba(255, 255, 255, 0.96);
  --panel-strong: #ffffff;
  --line: rgba(19, 58, 95, 0.1);
  --line-strong: rgba(19, 58, 95, 0.16);
  --text-main: #16324b;
  --text-sub: #63778d;
  --brand: #1f7ae0;
  --brand-deep: #1254a1;
  --brand-soft: rgba(31, 122, 224, 0.1);
  --success: #1f9d68;
  --warn: #d68a22;
  --danger: #da4f63;
  --shadow: 0 24px 56px rgba(20, 46, 78, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(31, 122, 224, 0.12), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--text-main);
}

body {
  padding: 20px;
}

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

button,
input,
select {
  font: inherit;
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(20, 46, 78, 0.12);
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 18px;
}

.brand span {
  margin-top: 4px;
  color: var(--text-sub);
  font-size: 13px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-sub);
}

.site-nav a.is-active,
.site-nav a:hover {
  background: var(--brand-soft);
  color: var(--brand-deep);
}

.category-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 600;
}

.panel {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 42px rgba(20, 46, 78, 0.06);
}

.panel + .panel,
.panel + .detail-sections,
.panel + .data-grid,
.data-grid + .panel,
.breadcrumbs + .status-box,
.status-box + .detail-layout {
  margin-top: 22px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.panel-head h2 {
  margin: 0 0 6px;
  font-size: 22px;
}

.panel-head p {
  margin: 0;
  color: var(--text-sub);
  font-size: 14px;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(160px, 0.6fr)) auto;
  gap: 14px;
  align-items: end;
}

.search-box,
.toolbar-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.search-box span,
.toolbar-field span {
  color: var(--text-sub);
  font-size: 13px;
}

.search-box input,
.toolbar-field select {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--text-main);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--text-main);
  cursor: pointer;
}

.button:hover {
  border-color: rgba(31, 122, 224, 0.4);
}

.button-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--brand), #4ea2ff);
  color: #fff;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tab-section[hidden] {
  display: none !important;
}

.chip {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--text-sub);
  cursor: pointer;
}

.chip.is-active,
.chip:hover {
  border-color: rgba(31, 122, 224, 0.24);
  background: var(--brand-soft);
  color: var(--brand-deep);
}

.data-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.status-box {
  padding: 16px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-sub);
}

.qualification-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.qualification-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

.qualification-card h3 {
  margin: 0 0 14px;
  font-size: 16px;
}

.qualification-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  object-fit: contain;
  background: #f7fafc;
  border: 1px solid var(--line);
}

.goods-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.goods-card {
  display: grid;
  grid-template-rows: auto auto auto auto 1fr auto;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}

.goods-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 122, 224, 0.22);
  box-shadow: 0 18px 34px rgba(20, 46, 78, 0.08);
}

.goods-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  object-fit: cover;
  background: #f0f4f8;
}

.goods-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.goods-card h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.35;
}

.goods-meta,
.goods-card p,
.notice-item time {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(31, 122, 224, 0.1);
  color: var(--brand-deep);
  font-size: 12px;
  font-weight: 600;
}

.badge.warn {
  background: rgba(214, 138, 34, 0.12);
  color: #9c6314;
}

.badge.danger {
  background: rgba(218, 79, 99, 0.12);
  color: #a62a48;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.price-current {
  color: var(--danger);
  font-size: 22px;
  font-weight: 700;
}

.price-origin {
  color: #91a0af;
  font-size: 14px;
  text-decoration: line-through;
}

.card-actions {
  display: flex;
  justify-content: center;
  align-items: center;
}

.card-detail-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 132px;
  min-width: 116px;
  height: 38px;
  padding: 0 18px;
  margin: 0 auto;
  text-align: center;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-sub);
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.detail-gallery {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 34px;
}

.detail-main {
  position: relative;
  top: -24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gallery-stage {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7fafc;
}

.gallery-viewport {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.gallery-track {
  display: flex;
  height: 100%;
  transition: transform 0.28s ease;
}

.gallery-slide {
  flex: 0 0 100%;
  display: grid;
  place-items: center;
  padding: 18px;
}

.gallery-slide.is-empty {
  color: var(--text-sub);
  font-size: 14px;
}

.gallery-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  z-index: 1;
  width: 40px;
  height: 40px;
  border: 0;
  background: rgba(22, 50, 75, 0.62);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  border-radius: 999px;
  cursor: pointer;
  transform: translateY(-50%);
}

.gallery-nav-prev {
  left: 14px;
}

.gallery-nav-next {
  right: 14px;
}

.gallery-count {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(22, 50, 75, 0.7);
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.gallery-thumb {
  flex: 0 0 72px;
  aspect-ratio: 1 / 1;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  overflow: hidden;
  cursor: pointer;
}

.gallery-thumb.is-active {
  border-color: rgba(31, 122, 224, 0.46);
  box-shadow: 0 0 0 3px rgba(31, 122, 224, 0.1);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.detail-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-top: 0;
}

.detail-main h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.15;
}

.detail-subtitle {
  margin: 0;
  color: var(--text-sub);
  line-height: 1.6;
}

.detail-block {
  margin-top: 0;
}

.detail-block h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.detail-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.fact-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  min-height: 44px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fact-row:nth-child(2n) {
  border-right: 0;
}

.fact-row dt,
.fact-row dd {
  margin: 0;
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1.6;
}

.fact-row dt {
  background: #f6f9fc;
  color: var(--text-sub);
}

.fact-row dd {
  color: var(--text-main);
  word-break: break-word;
}

.sku-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
}

.sku-chip {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.sku-chip.is-active {
  border-color: rgba(31, 122, 224, 0.46);
  background: var(--brand-soft);
  color: var(--brand-deep);
}

.detail-sections {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

.detail-html {
  color: var(--text-main);
  line-height: 1.9;
}

.detail-html:empty::before {
  content: "当前商品暂无图文详情。";
  color: var(--text-sub);
}

.empty-box {
  padding: 28px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  text-align: center;
  color: var(--text-sub);
}

@media (max-width: 1080px) {
  .data-grid,
  .detail-layout,
  .qualification-grid {
    grid-template-columns: 1fr;
  }

  .detail-gallery,
  .detail-main,
  .gallery-stage {
    height: auto;
    min-height: 0;
  }

  .detail-main {
    top: 0;
  }

  .detail-title-row {
    flex-direction: column;
    gap: 8px;
  }

  .goods-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .toolbar {
    grid-template-columns: 1fr 1fr;
  }

}

@media (max-width: 720px) {
  body {
    padding: 16px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .detail-main h1 {
    font-size: 24px;
  }
  .detail-metrics,
  .detail-facts,
  .toolbar {
    grid-template-columns: 1fr;
  }

  .fact-row {
    grid-template-columns: 96px minmax(0, 1fr);
    border-right: 0;
  }

  .goods-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}