.main.product.product-detail-page {
  --detail-accent: #e44545;
  --detail-ink: #17191d;
  --detail-muted: #6f737a;
  --detail-line: #e7e8ea;
  --detail-surface: #fff;
  --detail-canvas: #f3f4f5;
  padding: 0;
  background: var(--detail-canvas);
}

.main.product.product-detail-page .wrap {
  padding: clamp(28px, 3vw, 48px) 7%;
  background: var(--detail-canvas);
}

.main.product.product-detail-page .wrap .container.product-detail-layout {
  --detail-sidebar-width: clamp(240px, 16vw, 300px);
  --detail-layout-gap: clamp(24px, 1.8vw, 34px);
  width: min(1600px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--detail-sidebar-width) minmax(0, 1fr);
  gap: var(--detail-layout-gap);
  align-items: start;
  overflow: visible;
  background: transparent;
}

/* Keep the category navigation visible, but stop it at the detail layout bottom. */
@media (min-width: 769px) {
  .main.product.product-detail-page,
  .main.product.product-detail-page > .wrap,
  .main.product.product-detail-page .wrap .container.product-detail-layout {
    overflow: visible !important;
  }

  .main.product.product-detail-page .wrap .container.product-detail-layout > .product-category {
    position: sticky !important;
    top: 128px;
    max-height: calc(100vh - 156px);
    overflow-x: hidden !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
  }

  .main.product.product-detail-page .wrap .container.product-detail-layout > .product-detail__content {
    grid-column: 2;
  }
}

.main.product.product-detail-page .wrap .container.product-detail-layout > .product-category {
  position: static;
  z-index: 2;
  align-self: start;
  width: 100%;
  height: max-content;
  float: none;
  overflow: hidden;
  border: 0;
  border-radius: 14px;
  background: var(--detail-surface);
}

.product-section-heading span {
  display: block;
  margin: 0 0 7px;
  color: var(--detail-accent);
  font-size: 11px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.product-detail-page .product-category .nav_item {
  width: auto;
  border-bottom: 1px solid #eee;
}

.product-detail-page .product-category .nav_item:last-child { border-bottom: 0; }

.product-detail-page .product-category .nav_item .top_item,
.product-detail-page .product-category .nav_item:hover .top_item,
.product-detail-page .product-category .nav_item.on .top_item,
.product-detail-page .product-category .nav_item.active .top_item {
  position: relative;
  min-height: 68px;
  line-height: 1.4;
  background: transparent;
}

.product-detail-page .product-category .nav_item .top_item a,
.product-detail-page .product-category .nav_item:hover .top_item a,
.product-detail-page .product-category .nav_item.on .top_item a,
.product-detail-page .product-category .nav_item.active .top_item a {
  position: relative;
  width: 100%;
  min-height: 68px;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  padding: 16px 28px 16px 52px;
  color: #666;
  font-size: 16px;
  font-weight: 400;
  transition: color 220ms ease, background-color 220ms ease;
}

.product-detail-page .product-category .nav_item.on .top_item::before,
.product-detail-page .product-category .nav_item.active .top_item::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 32px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--detail-accent);
  transform: translateY(-50%);
}

.product-detail-page .product-category .nav_item:hover .top_item a {
  color: var(--detail-ink);
  background: #fafafa;
}

.product-detail-page .product-category .nav_item.on .top_item a,
.product-detail-page .product-category .nav_item.active .top_item a {
  color: var(--detail-ink);
  font-weight: 600;
}

.product-detail-page a:focus-visible,
.product-detail-page button:focus-visible {
  outline: 2px solid var(--detail-accent);
  outline-offset: 3px;
}

.product-detail__content { min-width: 0; }

.main.product.product-detail-page .wrap .container.product-detail-layout .product_box {
  width: auto;
  float: none;
  margin: 0;
  padding: 0;
  border: 0;
}

.product-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(400px, 1fr);
  gap: clamp(30px, 2.1vw, 42px);
  align-items: start;
}

.product-gallery__stage {
  position: relative;
  min-height: 0;
  aspect-ratio: 1.65 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(24px, 3vw, 46px);
  box-sizing: border-box;
  overflow: hidden;
  border-radius: 12px;
  background: var(--detail-surface);
}

.product-gallery__stage img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity .18s ease, transform .45s cubic-bezier(.2,.7,.2,1);
}

.product-gallery__stage:hover img { transform: scale(1.025); }
.product-gallery__stage img.is-changing { opacity: .35; }

.product-gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px 16px;
  margin-top: 6px;
}

.product-gallery__thumb {
  min-width: 0;
  aspect-ratio: 1.6 / 1;
  padding: 9px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 0;
  background: var(--detail-surface);
  cursor: pointer;
  transition: border-color .2s ease, transform .2s ease;
}

.product-gallery__thumb:hover { transform: translateY(-2px); }
.product-gallery__thumb.is-active { border-color: #e8e8e8; }

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-summary { padding-top: 8px; }

.product-summary h1 {
  margin: 0;
  padding: 0 0 20px;
  border-bottom: 1px solid #d9dbde;
  color: var(--detail-ink);
  font-size: clamp(24px, 1.55vw, 30px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.product-summary__description {
  margin-top: 34px;
  color: #33373c;
  font-size: 16px;
  line-height: 1.9;
  text-wrap: pretty;
}

.product-detail-body,
.related-products {
  margin-top: clamp(34px, 4vw, 56px);
  padding: clamp(24px, 3vw, 40px);
  background: var(--detail-surface);
  box-shadow: 0 18px 50px rgba(32, 38, 45, .055);
}

.product-detail-body {
  border-radius: 0;
}

.related-products {
  border-radius: 0;
}

.product-section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 17px;
  border-bottom: 1px solid var(--detail-line);
}

.product-section-heading span {
  order: 2;
  margin: 0;
  color: #a2a6ac;
}

.product-section-heading h2 {
  margin: 0;
  color: var(--detail-ink);
  font-size: clamp(24px, 2vw, 32px);
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -.025em;
}

.product-richtext {
  overflow-x: auto;
  color: #45494f;
  font-size: 16px;
  line-height: 1.9;
}

.product-richtext > *:first-child { margin-top: 0 !important; }
.product-richtext p { margin: 0 0 1.25em; }

.product-richtext img {
  display: block;
  max-width: 100% !important;
  height: auto !important;
  margin: 24px auto;
}

.product-richtext table {
  width: 100% !important;
  min-width: 680px;
  border-collapse: collapse;
  color: #45494f;
  font-size: 14px;
}

.product-richtext table td,
.product-richtext table th {
  padding: 12px 14px;
  border: 1px solid #dfe1e4;
  text-align: left;
}

.product-richtext table tr:nth-child(even) { background: #f6f7f8; }

.product-detail-page .product-pagination {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 400px));
  justify-content: center;
  gap: 10px;
  padding: 32px 0 0;
  text-align: center;
}

.product-detail-page .product-pagination a {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 12px 24px;
  box-sizing: border-box;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  color: #555a61;
  background: var(--detail-surface);
  font-size: 16px;
  line-height: 1.5;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color .25s ease, background-color .25s ease;
}

.product-detail-page .product-pagination a:hover {
  color: var(--detail-ink);
  background: #f9f9f9;
}

.product-detail-page .related-products {
  width: auto;
  display: block;
  padding: 0;
  overflow: hidden;
  border: 1px dashed #d2d2d2;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.product-detail-page .related-products > .tt {
  width: auto;
  min-height: 52px;
  display: flex;
  align-items: center;
  margin: -1px -1px 0;
  padding: 0 30px;
  box-sizing: border-box;
  color: #fff;
  background: #df4548;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 700;
}

.related-products__grid, .related-products__grid ul { width: auto; display: block; }

.related-products__grid {
  padding: 22px 22px 18px;
}

.related-products__grid ul {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 260px));
  justify-content: start;
  gap: 22px;
}

.related-products__grid ul li,
.related-products__grid ul li:last-child {
  width: auto;
  float: none;
  margin: 0;
}

.related-product {
  min-width: 0;
  height: 100%;
  display: block;
  color: var(--detail-ink);
  background: transparent;
}

.related-product:hover {
  color: var(--detail-ink);
  background: transparent;
}

.related-product .pic {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  overflow: hidden;
  box-sizing: border-box;
  background: #fff;
}

.related-products__grid ul li .related-product .pic img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform .35s ease;
}

.related-product:hover .pic img {
  transform: scale(1.05);
}

.related-product .info {
  height: auto;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 6px 0;
  box-sizing: border-box;
  color: var(--detail-ink);
  font-size: 16px;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 1280px) {
  .main.product.product-detail-page .wrap .container.product-detail-layout {
    --detail-sidebar-width: 245px;
    --detail-layout-gap: 30px;
  }

  .product-overview {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 30px;
  }

  .product-summary h1 { font-size: 27px; }
}

@media (max-width: 980px) {
  .main.product.product-detail-page .wrap .container.product-detail-layout {
    --detail-sidebar-width: 220px;
    --detail-layout-gap: 22px;
  }

  .product-overview { grid-template-columns: 1fr; }
  .product-summary { padding: 0 4px; }
  .related-products__grid ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .main.product.product-detail-page .wrap { padding: 28px 16px 48px; }
  .main.product.product-detail-page .wrap .container.product-detail-layout { display: block; }

  .main.product.product-detail-page .wrap .container.product-detail-layout > .product-category {
    position: static !important;
    width: 100%;
    margin: 0 0 24px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-radius: 12px;
  }

  .product-detail-page .product-category .nav_item {
    border-right: 1px solid #eee;
  }

  .product-detail-page .product-category .nav_item:nth-child(even) {
    border-right: 0;
  }

  .product-gallery__stage { min-height: 320px; }

  .product-detail-body,
  .related-products {
    margin-top: 42px;
    padding: 24px 18px;
  }

  .product-detail-page .product-pagination { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .product-detail-page .product-category {
    grid-template-columns: 1fr;
  }

  .product-detail-page .product-category .nav_item,
  .product-detail-page .product-category .nav_item:nth-child(even) {
    border-right: 0;
  }

  .product-detail-page .product-category .nav_item .top_item,
  .product-detail-page .product-category .nav_item:hover .top_item,
  .product-detail-page .product-category .nav_item.on .top_item,
  .product-detail-page .product-category .nav_item.active .top_item,
  .product-detail-page .product-category .nav_item .top_item a,
  .product-detail-page .product-category .nav_item:hover .top_item a,
  .product-detail-page .product-category .nav_item.on .top_item a,
  .product-detail-page .product-category .nav_item.active .top_item a {
    min-height: 58px;
  }

  .product-detail-page .product-category .nav_item .top_item a,
  .product-detail-page .product-category .nav_item:hover .top_item a,
  .product-detail-page .product-category .nav_item.on .top_item a,
  .product-detail-page .product-category .nav_item.active .top_item a {
    padding: 14px 24px 14px 42px;
    font-size: 16px;
  }

  .product-detail-page .product-category .nav_item.on .top_item::before,
  .product-detail-page .product-category .nav_item.active .top_item::before {
    left: 24px;
  }

  .product-gallery__stage { min-height: 250px; padding: 18px; }
  .product-gallery__thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .product-summary h1 { padding-bottom: 18px; font-size: 25px; }

  .product-summary__description {
    margin-top: 20px;
    font-size: 15px;
    line-height: 1.75;
  }

  .product-section-heading { display: block; }
  .product-section-heading span { margin-bottom: 8px; }
  .related-products__grid ul { grid-template-columns: 1fr; }

  .product-detail-page .product-pagination a {
    padding: 10px 12px;
    font-size: 13px;
  }
}

@media (max-width: 420px) {
  .product-detail-page .product-pagination {
    grid-template-columns: 1fr;
    padding-top: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .product-detail-page *,
  .product-detail-page *::before,
  .product-detail-page *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}