.model-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.catalog-page { padding-top: 12px; }
.catalog-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 28px; width: min(100%, 1056px); margin: 0 auto; align-items: start; }
.catalog-sidebar { position: sticky; top: 16px; min-width: 0; padding-right: 20px; border-right: 1px solid var(--edge); }
.catalog-home { display: flex; align-items: center; gap: 10px; min-height: 42px; margin-bottom: 22px; padding: 10px 12px; border: 1px solid var(--edge); background: var(--surface, #0d1420); font-size: 13px; font-weight: 600; }
.catalog-home > span:first-child { font-size: 22px; line-height: 1; }
.catalog-home:hover { background: var(--surface-hover, #152942); }
.catalog-menu-panel > summary { display: none; }
.catalog-menu { display: grid; gap: 22px; }
.catalog-menu-group { display: grid; gap: 4px; }
.catalog-menu-group h2 { margin: 0 0 5px; font-family: 'GT Barlow', 'Arial Narrow', sans-serif; font-size: 22px; font-weight: 600; line-height: 1.2; }
.catalog-menu a { padding: 10px 12px; border-left: 3px solid transparent; color: var(--muted); font-size: 13px; line-height: 1.5; }
.catalog-menu a:hover { color: var(--accent, #b6d8ff); background: var(--surface-hover, #152942); }
.catalog-menu a[aria-current="page"] { color: var(--accent, #b6d8ff); background: var(--surface, #0d1420); border-left-color: var(--accent, #368ce6); font-weight: 700; }
.catalog-menu .catalog-menu-inquiry { border-top: 1px solid var(--edge); padding-top: 16px; color: var(--accent, #b6d8ff); font-weight: 700; }
.catalog-content.category-content { min-width: 0; width: 100%; margin: 0; }
.catalog-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.catalog-heading h1 { margin: 0; text-align: left; font-size: clamp(24px, 2.5vw, 32px); }
.catalog-heading .category-brand { flex: none; margin: 0; }
.catalog-heading .brand-mark { width: 152px; height: 54px; }
.catalog-heading .brand-mark[data-brand="bgs"] img { width: 120px; height: 120px; }
.catalog-content .model-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.model-card { min-width: 0; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--edge, #2c3d54); border-radius: 6px; background: var(--surface, #0d1420); }
.model-image-link { display: flex; align-items: center; justify-content: center; height: 260px; padding: 18px; overflow: hidden; background: #fff; border-bottom: 1px solid var(--edge, #2c3d54); }
.model-image-link img { display: block; min-width: 0; min-height: 0; width: 100%; height: 100%; object-fit: scale-down; }
.model-image-caption { margin: 0; padding: 7px 18px; border-bottom: 1px solid var(--edge); background: #fff; color: #506274; font-size: 11px; text-align: center; }
.model-details { display: flex; flex-direction: column; flex: 1; padding: 22px 24px 24px; }
.model-details h2 { margin: 0 0 12px; font-family: 'GT Barlow', 'Arial Narrow', sans-serif; font-size: 27px; font-weight: 600; line-height: 1.2; letter-spacing: .015em; }
.model-description { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.model-features { margin: 16px 0 22px; padding-left: 18px; color: var(--text); font-size: 13px; line-height: 1.7; }
.model-features li + li { margin-top: 4px; }
.model-price { margin: 0 0 18px; color: var(--accent, #b6d8ff); font-size: 20px; font-weight: 700; line-height: 1.4; }
.model-price-variant { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; font-weight: 400; line-height: 1.5; }
.model-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 18px; margin-top: auto; }
.model-inquiry { display: inline-flex; justify-content: center; padding: 11px 16px; border: 1px solid var(--button, #6c92bd); border-radius: 4px; background: var(--button, #163451); color: var(--button-text, #fff); font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.model-inquiry:hover { background: var(--button-hover, #21496c); }
.model-inquiry:focus-visible { outline: 3px solid var(--focus, #c1dbff); outline-offset: 4px; }
.model-source { color: var(--accent, #b6d8ff); font-size: 12px; line-height: 1.5; text-decoration: underline; }
@media (max-width: 680px) { .model-grid { grid-template-columns: 1fr; gap: 20px; } .model-image-link { height: 250px; } .model-details { padding: 20px; } }
@media (max-width: 900px) {
  .catalog-layout { grid-template-columns: 180px minmax(0, 1fr); gap: 20px; }
  .catalog-sidebar { padding-right: 14px; }
  .catalog-heading { gap: 12px; }
  .catalog-heading .brand-mark { width: 120px; height: 44px; }
  .catalog-heading .brand-mark[data-brand="bgs"] img { width: 94px; height: 94px; }
}
@media (max-width: 600px) {
  .catalog-page { padding-top: 10px; }
  .catalog-layout { grid-template-columns: 1fr; gap: 16px; }
  .catalog-sidebar { position: static; display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 12px; padding: 0; border: 0; }
  .catalog-home { justify-content: center; margin: 0; padding: 8px; }
  .catalog-home-text { display: none; }
  .catalog-menu-panel { min-width: 0; }
  .catalog-menu-panel > summary { display: list-item; min-height: 42px; padding: 10px 14px; border: 1px solid var(--edge); background: var(--surface, #0d1420); color: var(--text); font-size: 13px; font-weight: 700; cursor: pointer; }
  .catalog-menu-panel > summary:focus-visible { outline: 3px solid var(--focus, #c1dbff); outline-offset: 4px; }
  .catalog-menu { padding: 18px 0 4px; gap: 16px; }
  .catalog-heading { align-items: center; }
  .catalog-heading h1 { font-size: 24px; }
}