.category-layout { display:grid; grid-template-columns: 290px 1fr; gap:24px; align-items:start; }
.sidebar-box { position:sticky; top: calc(var(--header-height) + var(--topbar-height, 0px) + 22px); padding:20px; }
.related-products-wrap { margin-top: 54px; }
@media (max-width: 900px) { .category-layout { grid-template-columns: 1fr; } .sidebar-box { position:static; } }