/* 品类集合页布局 */

.collection-page {
  padding: 0 0 64px;
  --col-accent: #1d5198;
  --col-accent-soft: #e8f0fc;
  --col-shelly-blue: #4594d1;
  --col-border: #e8ecf1;
  --col-text: #121519;
  --col-muted: #6b7280;
}

.collection-page__inner {
  max-width: 1450px;
  margin: 0 auto;
  padding: 0;
}

/* 品类集合页：页内文字面包屑已移除（由 banner_sub 统一提供），以下样式仅 product-all 等仍使用的页面保留 */

.collection-breadcrumb {
  margin: 0 0 20px;
  font-size: 13px;
  color: var(--col-muted);
  text-align: center;
}

.collection-breadcrumb a {
  color: var(--col-muted);
  text-decoration: none;
}

.collection-breadcrumb a:hover {
  color: var(--col-accent);
  text-decoration: underline;
}

.collection-breadcrumb__sep {
  margin: 0 8px;
  color: #ccc;
}

.collection-breadcrumb__current {
  color: var(--col-text);
}

.collection-page__title {
  margin: 32px 0 16px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--col-text);
  text-align: center;
}

.collection-page__desc {
  max-width: 720px;
  margin: 0 auto 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--col-muted);
  text-align: center;
}

/* —— product-all 正式页 —— */
.collection-page--product-all .collection-page__intro {
  margin-bottom: 28px;
  text-align: center;
}

.collection-page--product-all .collection-page__title {
  margin-top: 0;
}

.collection-page__badge {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 12px;
  font-size: 13px;
  color: var(--col-accent);
  background: var(--col-accent-soft);
  border-radius: 5px;
}

.collection-page__links {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.3;
  font-family: var(--site-ui-font, 'Segoe UI', system-ui, -apple-system, 'Microsoft YaHei', 'PingFang SC', sans-serif);
}

.collection-page__links a {
  font-weight: 500;
  color: var(--menu-sub-brand, #1d5198);
  text-decoration: none;
}

.collection-page__links a:hover {
  color: var(--menu-sub-brand-hover, #16467f);
}

.collection-page--product-all .collection-page__desc {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.product-all-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

@media (min-width: 768px) {
  .product-all-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.product-all-stats__item {
  padding: 16px 14px;
  text-align: center;
  background: #fafbfc;
  border: 1px solid var(--col-border);
  border-radius: 5px;
}

.product-all-stats__item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 22px;
  font-weight: 600;
  color: var(--col-accent);
  line-height: 1.2;
}

.product-all-stats__item span {
  display: block;
  font-size: 12px;
  line-height: 1.45;
  color: var(--col-muted);
}

.product-all-stats-note {
  margin: 0 0 32px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--col-muted);
  text-align: center;
}

.collection-subsection--flush {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.collection-route-row--5 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .collection-route-row--5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .collection-route-row--5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

.product-all-crosslinks__links {
  margin: 0;
  font-size: 14px;
  line-height: 1.3;
  font-family: var(--site-ui-font, 'Segoe UI', system-ui, -apple-system, 'Microsoft YaHei', 'PingFang SC', sans-serif);
}

.product-all-crosslinks__links a {
  font-weight: 500;
  color: var(--menu-sub-brand, #1d5198);
  text-decoration: none;
}

.product-all-crosslinks__links a:hover {
  color: var(--menu-sub-brand-hover, #16467f);
}

.product-all-cta {
  margin-top: 48px;
  padding: 24px 20px;
  text-align: center;
  background: var(--col-accent-soft);
  border: 1px solid #dce4ee;
  border-radius: 5px;
}

.product-all-cta p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--col-text);
}

.product-all-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.product-all-cta__primary,
.product-all-cta__outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 44px;
  padding: 10px 18px;
  font-size: 14px;
  line-height: 1.2;
  font-family: var(--site-ui-font, 'Segoe UI', system-ui, -apple-system, 'Microsoft YaHei', 'PingFang SC', sans-serif);
  font-weight: 500;
  text-decoration: none;
  border-radius: 5px;
}

.product-all-cta__primary {
  color: #fff;
  background: var(--col-accent);
}

.product-all-cta__outline {
  color: var(--col-accent);
  background: #fff;
  border: 1px solid var(--col-accent);
}

.product-all-cta__primary:hover,
.product-all-cta__outline:hover {
  opacity: 0.92;
}

/* 产品中心入口：三列卡片 + 3:2 场景图（与 AI 出图及 catalog imageSpec 一致，无需裁切） */
@media (min-width: 990px) {
  .collection-page--product-all .collection-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}

.collection-page--product-all .collection-subsection--flush {
  margin-bottom: 8px;
}

.collection-page--product-all .collection-subsection__title {
  margin-bottom: 20px;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.collection-page--product-all .collection-card {
  display: flex;
}

.collection-page--product-all .collection-card--featured .collection-card__link {
  border-color: #1d5198;
  box-shadow: 0 4px 18px rgba(29, 81, 152, 0.14);
}

.collection-page--product-all .collection-card--featured .collection-card__badge {
  background: linear-gradient(135deg, #1d5198 0%, #2a6cb8 100%);
}

.collection-page--product-all .collection-card__link {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: #fff;
  border: 1px solid var(--col-border);
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(18, 21, 25, 0.06);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.collection-page--product-all .collection-card:hover .collection-card__link {
  transform: translateY(-4px);
  border-color: #c5d4ea;
  box-shadow: 0 14px 32px rgba(29, 81, 152, 0.12);
}

.collection-page--product-all .collection-card__media {
  aspect-ratio: 3 / 2;
  background: linear-gradient(145deg, #eef2f7 0%, #e4eaf2 100%);
}

.collection-page--product-all .collection-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to top, rgba(18, 21, 25, 0.22) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.28s ease;
  pointer-events: none;
}

.collection-page--product-all .collection-card:hover .collection-card__media::after {
  opacity: 1;
}

.collection-page--product-all .collection-card__media img {
  object-fit: cover;
  padding: 0;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.collection-page--product-all .collection-card:hover .collection-card__media img {
  transform: scale(1.06);
}

.collection-page--product-all .collection-card__badge {
  top: 12px;
  right: 12px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: rgba(29, 81, 152, 0.9);
  border: none;
  border-radius: 5px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(4px);
}

.collection-page--product-all .collection-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px 20px 20px;
  text-align: left;
}

.collection-page--product-all .collection-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--col-text);
  transition: color 0.2s ease;
}

.collection-page--product-all .collection-card:hover .collection-card__title {
  color: var(--col-accent);
}

.collection-page--product-all .collection-card__spec {
  flex: 1;
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.65;
  color: #5c6370;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.collection-page--product-all .collection-card__action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid #f0f2f5;
  font-size: 13px;
  font-weight: 600;
  color: var(--col-accent);
}

.collection-page--product-all .collection-card__action::after {
  content: "→";
  font-size: 15px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.collection-page--product-all .collection-card:hover .collection-card__action::after {
  transform: translateX(4px);
}

.collection-page--product-all .collection-footnav {
  display: flex;
}

/* 品类 Tab 已移至 Banner 底部（banner-sub.css · .banner-category-siblings） */
.collection-siblings {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  padding: 16px 0 20px;
  margin-bottom: 4px;
  justify-content: flex-start;
}

.collection-sibling {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 108px;
  padding: 12px 8px 10px;
  border: 1px solid transparent;
  border-radius: 5px;
  text-decoration: none;
  color: var(--col-text);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.collection-sibling:hover {
  background: #f8f9fb;
  border-color: var(--col-border);
}

.collection-sibling.is-active {
  background: var(--col-accent-soft);
  border-color: var(--col-accent);
}

.collection-sibling__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.collection-sibling__icon img {
  max-width: 28px;
  max-height: 28px;
  object-fit: contain;
}

.collection-sibling__label {
  font-size: 12px;
  line-height: 1.35;
  text-align: center;
  color: var(--col-text);
}

.collection-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  padding-top: 4px;
  font-size: 13px;
  color: var(--col-muted);
}

.collection-toolbar a {
  color: var(--col-accent);
  text-decoration: none;
  font-weight: 600;
}

.collection-toolbar a:hover {
  text-decoration: underline;
}

/* 产品网格 */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 750px) {
  .collection-grid {
    gap: 26px;
  }
}

@media (min-width: 990px) {
  .collection-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .collection-grid--3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
  }

  .collection-siblings {
    justify-content: center;
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

.collection-card {
  position: relative;
}

.collection-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.collection-card__media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f4f6f8;
  border-radius: 0;
}

.collection-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 16px;
  box-sizing: border-box;
  transition: transform 0.35s ease, opacity 0.35s ease;
}

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

.collection-card__badge {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--col-shelly-blue);
  background: #fff;
  border: 1px solid var(--col-shelly-blue);
  border-radius: 5px;
}

.collection-card__body {
  padding: 14px 4px 8px;
  text-align: left;
}

.collection-card__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--col-text);
}

.collection-card__meta {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--col-shelly-blue);
}

.collection-card__spec {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--col-muted);
}

.collection-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.collection-card__tag {
  padding: 2px 8px;
  font-size: 11px;
  color: var(--col-muted);
  background: #f4f6f8;
  border-radius: 5px;
}

/* 品类目录 · 筛选 + 产品网格（RCU / 智能模块等共用） */
.rcu-catalog {
  margin-top: 24px;
  padding-top: 8px;
}

.rcu-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.rcu-filter-btn {
  padding: 10px 22px;
  border: 1px solid #e1e5ea;
  background: #fff;
  color: #666;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.rcu-filter-btn:hover,
.rcu-filter-btn.active {
  border-color: var(--col-accent);
  background: var(--col-accent);
  color: #fff;
}

.rcu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.rcu-grid.is-grid-empty {
  display: none;
}

.rcu-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid #e1e5ea;
  border-radius: 5px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.rcu-card:hover {
  transform: translateY(-4px);
  border-color: var(--col-accent);
  box-shadow: 0 8px 24px rgba(29, 81, 152, 0.1);
}

.rcu-card.is-filter-hidden {
  display: none;
}

.rcu-card--wide {
  grid-column: span 2;
}

@media (max-width: 640px) {
  .rcu-card--wide {
    grid-column: span 1;
  }
}

.rcu-card__media {
  position: relative;
  aspect-ratio: 800 / 456;
  overflow: hidden;
  background: #f4f6f8;
  line-height: 0;
}

.rcu-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  transition: transform 0.35s ease;
}

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

.rcu-card__region {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: rgba(29, 81, 152, 0.85);
  border-radius: 5px;
  line-height: 1.3;
}

.rcu-card__body {
  padding: 16px 18px 18px;
}

.rcu-card__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--col-text);
}

.rcu-card__desc {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.6;
  color: #666;
}

.rcu-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.rcu-card__tag {
  padding: 2px 8px;
  font-size: 11px;
  color: var(--col-shelly-blue);
  background: #f0f6fc;
  border-radius: 5px;
  font-weight: 600;
}

.rcu-filter-empty {
  margin: 0;
  padding: 48px 16px;
  text-align: center;
  font-size: 14px;
  color: #666;
}

@media (min-width: 990px) {
  .rcu-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
  }
}

@media (max-width: 989px) and (min-width: 641px) {
  .rcu-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .rcu-grid {
    grid-template-columns: 1fr;
  }

  .rcu-filters {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }

  .rcu-filter-btn {
    flex: 0 0 auto;
  }
}

/* 集合页下方补充区块 */
.collection-subsection {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--col-border);
}

.collection-subsection__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--col-text);
}

.collection-subsection__desc {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--col-muted);
  line-height: 1.65;
}

/* Must follow .collection-subsection — same specificity, later in file wins */
.collection-subsection.collection-subsection--flush {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.collection-route-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.collection-route {
  padding: 16px;
  background: #fafbfc;
  border: 1px solid var(--col-border);
  border-radius: 5px;
}

.collection-route h3 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--col-accent);
}

.collection-route p {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--col-muted);
}

.collection-route a {
  font-size: 12px;
  font-weight: 600;
  color: var(--col-accent);
  text-decoration: none;
}

.collection-route a + a {
  display: block;
  margin-top: 6px;
}

.collection-route a:hover {
  text-decoration: underline;
}

.collection-footnav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--col-border);
  font-size: 14px;
}

.collection-footnav a {
  color: var(--col-accent);
  text-decoration: none;
}

.collection-footnav a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .collection-route-row {
    grid-template-columns: 1fr;
  }
}