/* Catalog density changes apply only to computers; mobile keeps its original DOM. */
@media (min-width: 1024px) {
  .gltf-catalog-hero { padding-top: 24px; padding-bottom: 23px; }
  .gltf-catalog-hero h1 { margin-bottom: 6px; font-size: 36px; line-height: 1.3; }
  .gltf-catalog-hero p { font-size: 14px; line-height: 1.65; }

  [data-desktop-catalog="guides"], [data-desktop-catalog="videos"] { padding-top: 22px; }
  .gltf-catalog-desktop .gltf-guide-search,
  .gltf-catalog-desktop .gltf-video-toolbar { margin-bottom: 14px; padding: 16px 18px; border: 1px solid var(--line, #d7e0db); border-radius: 10px; background: #fff; box-shadow: none; }
  .gltf-catalog-desktop .gltf-guide-search > input,
  .gltf-catalog-desktop .gltf-video-toolbar input { min-height: 40px; padding: 7px 0; font-size: 15px; }
  .gltf-catalog-desktop .gltf-guide-query-label,
  .gltf-catalog-desktop .gltf-video-toolbar label > span { font-size: 12px; margin-bottom: 3px; }
  .gltf-catalog-desktop .gltf-guide-search > .gltf-guide-filter-head { margin-top: 11px; }
  .gltf-catalog-desktop .gltf-guide-filter-head > span { font-size: 12px; }
  .gltf-catalog-desktop #gltf-guide-filters,
  .gltf-catalog-desktop #gltf-video-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 8px; }
  .gltf-catalog-desktop #gltf-guide-filters > button,
  .gltf-catalog-desktop #gltf-video-filters > button,
  .gltf-catalog-desktop .gltf-catalog-topic-group button { min-height: 34px; padding: 6px 11px; border: 1px solid #d5dfd9; border-radius: 7px; background: #f7faf8; color: var(--blue, #164c56); font-size: 13px; font-weight: 500; cursor: pointer; }
  .gltf-catalog-desktop #gltf-guide-filters button.active,
  .gltf-catalog-desktop #gltf-video-filters button.active { border-color: var(--blue, #164c56); background: var(--blue, #164c56); color: #fff; }
  .gltf-catalog-desktop .gltf-catalog-more { max-width: 100%; border: 0; }
  .gltf-catalog-desktop .gltf-catalog-more > summary { display: flex; align-items: center; gap: 6px; min-height: 34px; padding: 6px 9px; color: var(--blue, #164c56); font-size: 13px; line-height: 1.5; list-style: none; cursor: pointer; }
  .gltf-catalog-desktop .gltf-catalog-more > summary::-webkit-details-marker { display: none; }
  .gltf-catalog-desktop .gltf-catalog-more > summary > span { color: var(--muted, #61736b); font-size: 11px; }
  .gltf-catalog-desktop .gltf-catalog-more > summary > i { font-style: normal; }
  .gltf-catalog-desktop .gltf-catalog-more[open] { flex: 1 0 100%; padding-top: 4px; }
  .gltf-catalog-desktop .gltf-catalog-more[open] > summary { width: fit-content; padding-left: 0; }
  .gltf-catalog-desktop .gltf-catalog-more[open] > summary > i { transform: rotate(45deg); }
  .gltf-catalog-desktop .gltf-catalog-topic-group { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; padding: 8px 0; border-top: 1px solid #e9eeeb; }
  .gltf-catalog-desktop .gltf-catalog-topic-group > strong { flex: 0 0 82px; color: var(--muted, #61736b); font-size: 12px; font-weight: 500; }
  .gltf-catalog-desktop .gltf-catalog-more[hidden],
  .gltf-catalog-desktop .gltf-catalog-topic-group[hidden] { display: none; }
  .gltf-catalog-desktop .gltf-catalog-more > summary:focus-visible { outline: 2px solid var(--blue, #164c56); outline-offset: 3px; border-radius: 4px; }

  .gltf-catalog-desktop .glt-guide-refine { margin-top: 11px; padding-top: 7px; border-top: 1px solid #e9eeeb; }
  .gltf-catalog-desktop .glt-guide-refine > summary { min-height: 32px; font-size: 13px; }
  .gltf-catalog-desktop .glt-guide-refine > .gltf-route-library-intro { width: 100%; margin: 9px 0 14px; gap: 14px; align-items: flex-start; }
  .gltf-catalog-desktop .gltf-route-library-intro h2 { margin-top: 7px; font-size: 12px; }
  .gltf-catalog-desktop .gltf-route-port-shortcuts { gap: 6px; }
  .gltf-catalog-desktop .gltf-route-port-shortcuts button { min-height: 32px; padding: 6px 10px; font-size: 12px; }
  .gltf-catalog-desktop .glt-guide-refine > .gltf-route-filter-grid { margin-top: 9px; gap: 10px; }
  .gltf-catalog-desktop .gltf-route-filter-grid label > span { font-size: 12px; }
  .gltf-catalog-desktop .gltf-route-filter-grid select { min-height: 39px; font-size: 13px; }
  .gltf-catalog-desktop .gltf-guide-results-head { margin-bottom: 12px; }
  .gltf-catalog-desktop .gltf-guide-grid { gap: 20px; }

  .gltf-catalog-desktop .gltf-video-toolbar .gltf-video-freshness-filters { margin-top: 10px; padding-top: 8px; gap: 8px; border-top: 1px solid #e9eeeb; }
  .gltf-catalog-desktop .gltf-video-freshness-filters button { min-height: 26px; padding: 3px 5px; border: 0; border-radius: 0; background: transparent; color: var(--muted, #61736b); font-size: 12px; }
  .gltf-catalog-desktop .gltf-video-toolbar .gltf-video-freshness-filters button.active { border: 0; background: transparent; color: var(--blue, #164c56); box-shadow: inset 0 -2px var(--blue, #164c56); }
  .gltf-catalog-desktop .gltf-video-notice { gap: 10px; margin-bottom: 14px; padding: 9px 13px; border: 1px solid #dce5df; border-radius: 8px; background: #f2f6f3; box-shadow: none; }
  .gltf-catalog-desktop .gltf-video-notice b { color: var(--blue, #164c56); font-family: inherit; font-size: 11px; letter-spacing: 0; }
  .gltf-catalog-desktop .gltf-video-notice span { color: var(--muted, #61736b); font-size: 11px; line-height: 1.6; }
  .gltf-catalog-desktop .gltf-video-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .gltf-catalog-desktop .gltf-video-card.featured { grid-column: auto; }
  .gltf-catalog-desktop .gltf-video-body { padding: 15px 17px 17px; }
  .gltf-catalog-desktop .gltf-video-body h3 { margin: 7px 0 9px; color: var(--ink, #1b342d); font: 700 19px/1.5 'Microsoft YaHei', 'PingFang SC', sans-serif; }
  .gltf-catalog-desktop .gltf-video-body > small { font-size: 11px; line-height: 1.5; }
}