.detail-shell { padding: 30px 0 0; }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 22px;
    color: var(--text-soft);
    font-size: 13px;
    font-weight: 600;
  }
  .breadcrumb a {
    color: var(--primary);
    text-decoration: none;
  }
  .product-detail-top {
    display: grid;
    grid-template-columns: minmax(320px, 520px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    margin-bottom: 28px;
  }
  .product-detail-bottom {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 28px;
    align-self: start;
  }
  .product-detail-bottom--single {
    grid-template-columns: minmax(0, 1fr);
  }
  .product-side {
    display: grid;
    gap: 18px;
    align-self: start;
    min-width: 0;
  }
  .product-detail-bottom__sidebar {
    display: grid;
    gap: 18px;
    align-self: start;
  }
  .product-detail-bottom__sidebar > * {
    width: 100%;
  }
  .product-info {
    min-width: 0;
  }
  .product-media, .product-info, .product-description {
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.84));
    border: 1px solid rgba(255,255,255,.8);
    box-shadow: var(--shadow);
  }
  .product-media { padding: 18px; }
  .product-similar {
    padding: 16px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.84));
    border: 1px solid rgba(255,255,255,.8);
    box-shadow: var(--shadow);
  }
  .product-detail-categories {
    width: auto;
    position: static;
    padding: 18px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.82));
    border: 1px solid rgba(255,255,255,.75);
    box-shadow: var(--shadow);
  }
  .product-detail-categories h3 {
    font-size: 14px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -.01em;
  }
  .product-detail-categories .cat-group + .cat-group {
    margin-top: 8px;
  }
  .product-detail-categories .cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 8px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-soft);
    cursor: pointer;
    text-decoration: none;
    transition: all .2s ease;
  }
  .product-detail-categories .cat-item:hover {
    background: rgba(79,70,229,.06);
    color: var(--text);
    transform: translateX(2px);
  }
  .product-detail-categories .cat-item.active {
    background: linear-gradient(135deg, rgba(79,70,229,.14), rgba(6,182,212,.10));
    color: var(--primary);
    box-shadow: inset 0 0 0 1px rgba(79,70,229,.10);
  }
  .product-detail-categories .cat-parent {
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
  }
  .product-detail-categories .cat-children {
    padding-left: 14px;
    border-left: 1px dashed var(--line-strong);
    margin-left: 8px;
  }
  .product-detail-categories .cat-child {
    font-size: 13px;
    margin-bottom: 6px;
    border-radius: 12px;
  }
  .product-similar-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
  }
  .product-similar-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
  }
  .product-similar-category {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(79,70,229,.08);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
  }
  .product-similar-list {
    display: grid;
    gap: 10px;
  }
  .product-similar-item {
    display: grid;
    grid-template-columns: 60px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    text-decoration: none;
    padding: 8px;
    border-radius: 16px;
    background: rgba(248,250,252,.9);
    border: 1px solid rgba(15,23,42,.05);
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  }
  .product-similar-item:hover {
    transform: translateY(-1px);
    border-color: rgba(79,70,229,.18);
    box-shadow: 0 14px 30px rgba(15,23,42,.08);
  }
  .product-similar-thumb {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #eef2ff, #f8fafc 55%, #ecfeff);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .product-similar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .product-similar-empty {
    color: var(--text-soft);
    font-size: 11px;
    font-weight: 700;
    text-align: center;
    padding: 6px;
  }
  .product-similar-body {
    min-width: 0;
    display: grid;
    gap: 4px;
  }
  .product-similar-name {
    color: var(--text);
    font-size: 13px;
    line-height: 1.45;
    font-weight: 700;
  }
  .product-similar-category-name {
    color: var(--text-soft);
    font-size: 11px;
    font-weight: 600;
  }
  .product-similar-price {
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
  }
  .product-similar-summary {
    color: var(--text-soft);
    font-size: 11px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .product-similar-arrow {
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
    transition: transform .2s ease;
  }
  .product-similar-item:hover .product-similar-arrow {
    transform: translateX(3px);
  }
  .product-similar-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 12px;
    width: 100%;
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(248,250,252,.92);
    color: var(--text);
    text-decoration: none;
    font-size: 12px;
    font-weight: 700;
    transition: all .2s ease;
  }
  .product-similar-more:hover {
    border-color: rgba(79,70,229,.24);
    color: var(--primary);
    transform: translateY(-1px);
  }
  .gallery { position: relative; }
  .gallery-main {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
      radial-gradient(circle at top left, rgba(79,70,229,.16), transparent 32%),
      linear-gradient(135deg, #eef2ff, #f8fafc 55%, #ecfeff);
  }
  .gallery-item {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
  .gallery-item.active { display: block; }
  video.gallery-item { width: 100%; }
  .gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 999px;
    background: rgba(17,24,39,.54);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    z-index: 2;
    transition: background .2s ease, transform .2s ease;
  }
  .gallery-nav:hover {
    background: rgba(79,70,229,.86);
    transform: translateY(-50%) scale(1.04);
  }
  .gallery-nav--prev { left: 14px; }
  .gallery-nav--next { right: 14px; }
  .gallery-empty {
    color: var(--text-soft);
    font-size: 15px;
    font-weight: 700;
  }
  .gallery-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
  }
  .gallery-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(148,163,184,.42);
    cursor: pointer;
    transition: transform .2s ease, background .2s ease, width .2s ease;
  }
  .gallery-dot:hover {
    transform: scale(1.12);
    background: rgba(79,70,229,.5);
  }
  .gallery-dot.active {
    width: 24px;
    background: var(--primary);
  }
  .gallery-thumb-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
  }
  .gallery-thumb {
    position: relative;
    width: 76px;
    height: 76px;
    padding: 0;
    border: 2px solid transparent;
    border-radius: 14px;
    overflow: hidden;
    background: #fff;
    cursor: pointer;
    transition: all .2s ease;
  }
  .gallery-thumb img,
  .gallery-thumb video,
  .gallery-thumb__video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    background:
      radial-gradient(circle at top left, rgba(79,70,229,.12), transparent 32%),
      linear-gradient(135deg, #eef2ff, #f8fafc 55%, #ecfeff);
  }
  .gallery-thumb:hover {
    transform: translateY(-1px);
    border-color: rgba(79,70,229,.26);
  }
  .gallery-thumb.active {
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(79,70,229,.18);
  }
  .gallery-play-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 26px;
    height: 26px;
    border-radius: 999px;
    background: rgba(17,24,39,.58);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    pointer-events: none;
  }
  .product-info { padding: 28px; }
  .product-category {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(79,70,229,.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    margin-bottom: 16px;
  }
  .product-info h1 {
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.08;
    letter-spacing: -.04em;
    margin-bottom: 14px;
  }
  .product-price {
    font-size: 34px;
    font-weight: 900;
    letter-spacing: -.04em;
    color: var(--text);
    margin-bottom: 16px;
  }
  .product-summary {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-soft);
    margin-bottom: 18px;
  }
  .product-summary p { margin: 0 0 12px; }
  .product-summary p:last-child { margin-bottom: 0; }
  .product-summary img,
  .product-summary video,
  .product-summary iframe {
    max-width: 100%;
    border-radius: 14px;
  }
  .product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
  }
  .product-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(15,23,42,.04);
    color: var(--text);
    font-size: 13px;
    font-weight: 700;
    border: 1px solid transparent;
  }
  .product-tag--badge {
    border-radius: 999px;
    background: rgba(79,70,229,.10);
    color: var(--primary);
    border-color: rgba(79,70,229,.14);
  }
  .product-tag__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.1em;
    line-height: 1;
    font-size: 14px;
  }
  .attrs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    overflow: visible;
    border: 1px solid var(--line);
    border-radius: 18px;
  }
  .attrs-table th, .attrs-table td {
    position: relative;
    overflow: visible;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    text-align: left;
    font-size: 14px;
  }
  .attrs-table tr:last-child th, .attrs-table tr:last-child td { border-bottom: none; }
  .attrs-table th {
    width: 120px;
    color: var(--text-soft);
    background: rgba(15,23,42,.03);
    font-weight: 700;
  }
  .attr-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(79,70,229,.08);
    color: var(--primary);
    margin: 0 8px 8px 0;
    font-size: 12px;
    font-weight: 700;
  }
  .attr-text {
    color: var(--text);
    font-size: 13px;
    line-height: 1.8;
  }
  .attr-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
  }
  .attr-chip--size {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--line);
  }
  .attr-chip--badge {
    background: rgba(79,70,229,.12);
    color: var(--primary);
  }
  .attr-values {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }
  .attr-values--colors {
    gap: 10px;
  }
  .attr-values--size,
  .attr-values--badge {
    gap: 10px;
  }
  .color-swatch {
    position: relative;
    width: 24px;
    height: 24px;
    border-radius: 999px;
    display: inline-flex;
    border: 1px solid var(--line);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.35);
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease;
  }
  .color-swatch:hover,
  .color-swatch:focus-visible {
    transform: translateY(-1px) scale(1.06);
    box-shadow: 0 8px 18px rgba(15,23,42,.16), inset 0 0 0 1px rgba(255,255,255,.4);
    outline: none;
  }
  .color-swatch::after {
    content: attr(data-label);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%) translateY(4px);
    padding: 6px 8px;
    border-radius: 8px;
    background: rgba(17,24,39,.92);
    color: #fff;
    font-size: 12px;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
    z-index: 3;
  }
  .color-swatch:hover::after,
  .color-swatch:focus-visible::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  .product-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
  }
  .inquiry-btn, .ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    padding: 14px 22px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: all .2s ease;
  }
  .inquiry-btn {
    border: none;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 16px 30px rgba(79,70,229,.24);
  }
  .inquiry-btn:hover { transform: translateY(-2px); }
  .ghost-btn {
    border: 1px solid var(--line);
    background: rgba(248,250,252,.92);
    color: var(--text);
  }
  .ghost-btn:hover { border-color: rgba(79,70,229,.24); color: var(--primary); }
  .product-detail-main {
    display: grid;
    gap: 24px;
    min-width: 0;
  }
  .product-description {
    padding: 28px;
  }
  .product-adjacent-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
  }
  .product-adjacent-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 96px;
    padding: 18px 20px;
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.84));
    border: 1px solid rgba(255,255,255,.8);
    box-shadow: var(--shadow);
    text-decoration: none;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  }
  .product-adjacent-card:hover {
    transform: translateY(-2px);
    border-color: rgba(79,70,229,.2);
    box-shadow: 0 18px 36px rgba(15,23,42,.1);
  }
  .product-adjacent-card--next {
    text-align: right;
    align-items: flex-end;
  }
  .product-adjacent-card.is-empty {
    visibility: hidden;
    pointer-events: none;
  }
  .product-adjacent-label {
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 700;
  }
  .product-adjacent-name {
    color: var(--text);
    font-size: 16px;
    font-weight: 800;
    line-height: 1.5;
  }
  .product-description h2 {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: -.03em;
    margin-bottom: 16px;
  }
  .description-content {
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.9;
  }
  .description-content img, .description-content video, .description-content iframe {
    max-width: 100%;
    border-radius: 18px;
  }
  .description-content table { width: 100%; border-collapse: collapse; }
  .description-content table td, .description-content table th {
    border: 1px solid var(--line);
    padding: 3px 12px;
  }
  @media (max-width: 1024px) {
    .product-detail-top,
    .product-detail-bottom,
    .product-detail-bottom--single {
      grid-template-columns: 1fr;
    }
  }
  @media (max-width: 768px) {
    .detail-shell { padding-top: 20px; }
    .product-detail-top,
    .product-detail-bottom { gap: 20px; }
    .product-info, .product-media, .product-description, .product-similar { padding: 20px; border-radius: 24px; }
    .product-adjacent-nav { grid-template-columns: 1fr; }
    .product-similar-list {
      display: flex;
      gap: 12px;
      overflow-x: auto;
      padding-bottom: 4px;
      scroll-snap-type: x proximity;
    }
    .product-similar-list::-webkit-scrollbar {
      height: 6px;
    }
    .product-similar-list::-webkit-scrollbar-thumb {
      background: rgba(148,163,184,.5);
      border-radius: 999px;
    }
    .product-similar-item {
      min-width: 240px;
      scroll-snap-align: start;
    }
    .product-info h1 { font-size: 28px; }
    .product-price { font-size: 28px; }
    .gallery-nav {
      width: 36px;
      height: 36px;
      font-size: 24px;
    }
    .gallery-nav--prev { left: 10px; }
    .gallery-nav--next { right: 10px; }
    .gallery-thumb { width: 62px; height: 62px; }
    .product-tags { gap: 8px; }
    .product-tag {
      padding: 8px 10px;
      font-size: 12px;
    }
    .attr-values--colors { gap: 8px; }
    .color-swatch {
      width: 22px;
      height: 22px;
    }
    .product-actions {
      flex-direction: column;
      gap: 10px;
    }
    .inquiry-btn, .ghost-btn {
      width: 100%;
      min-width: 0;
    }
    .attrs-table,
    .attrs-table tbody,
    .attrs-table tr,
    .attrs-table th,
    .attrs-table td {
      display: block;
      width: 100%;
    }
    .attrs-table {
      border: none;
      background: transparent;
    }
    .attrs-table tr {
      margin-bottom: 12px;
      border: 1px solid var(--line);
      border-radius: 16px;
      overflow: hidden;
      background: rgba(255,255,255,.6);
    }
    .attrs-table tr:last-child { margin-bottom: 0; }
    .attrs-table th, .attrs-table td {
      border-bottom: none;
      padding: 12px 14px;
    }
    .attrs-table th {
      width: 100%;
      border-bottom: 1px solid var(--line);
    }
    .description-content table {
      display: block;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
    }
  }
  @media (max-width: 640px) {
    .breadcrumb {
      font-size: 12px;
      margin-bottom: 16px;
    }
    .product-info, .product-media, .product-description {
      padding: 16px;
      border-radius: 18px;
    }
    .product-similar {
      padding: 16px;
      border-radius: 18px;
    }
    .product-similar-item {
      grid-template-columns: 60px minmax(0, 1fr) auto;
      gap: 10px;
      padding: 8px;
      border-radius: 14px;
      min-width: 210px;
    }
    .product-similar-thumb {
      width: 60px;
      height: 60px;
      border-radius: 12px;
    }
    .product-adjacent-card {
      min-height: 0;
      padding: 16px;
      border-radius: 18px;
    }
    .product-adjacent-card--next {
      align-items: flex-start;
      text-align: left;
    }
    .product-info h1 { font-size: 24px; }
    .product-price { font-size: 24px; }
    .product-summary, .description-content { font-size: 14px; line-height: 1.75; }
    .gallery-thumb-list {
      gap: 8px;
      margin-top: 12px;
    }
    .gallery-dots { gap: 6px; }
    .gallery-dot { width: 9px; height: 9px; }
    .gallery-dot.active { width: 20px; }
    .gallery-thumb { width: 56px; height: 56px; }
    .color-swatch::after { display: none; }
  }
  
  .breadcrumb {
    padding: 12px 16px;
    border: 1px solid #dde5d0;
    border-radius: 4px;
    background: #fff;
  }
  .product-media, .product-info, .product-description {
    border-radius: 6px;
    box-shadow: none;
    border: 1px solid #dde5d0;
    background: #fff;
  }
  .gallery-item {
    border-radius: 4px;
    background: linear-gradient(135deg, #edf5e1, #f9fbf5 55%, #eef3e5);
  }
  .gallery-main,
  .gallery-thumb,
  .gallery-thumb img,
  .gallery-thumb video {
    border-radius: 4px;
    background: linear-gradient(135deg, #edf5e1, #f9fbf5 55%, #eef3e5);
  }
  .gallery-thumb.active {
    border-color: #86aa43;
    box-shadow: none;
  }
  .product-category, .attr-tag, .product-tag {
    border-radius: 4px;
    background: #eff5e5;
    color: var(--primary-strong);
  }
  .product-tag--badge {
    border-radius: 999px;
    background: #7ea33c;
    color: #fff;
    border-color: #7ea33c;
  }
  .attrs-table { border-radius: 4px; border-color: #dfe7d3; }
  .attrs-table th { background: #f5f9ef; }
  .ghost-btn {
    border-radius: 4px;
    background: #fff;
  }
  .inquiry-btn {
    border-radius: 4px;
    background: linear-gradient(180deg, #86aa43 0%, #71953a 100%);
    box-shadow: none;
  }