@media (max-width: 1020px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .top-nav {
    display: none;
  }

  .search-box {
    grid-column: 1 / -1;
    max-width: none;
  }

  .hero-section {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-bottom: 0;
  }

  .promo-grid,
  .quick-entry-grid,
  .category-page,
  .profile-grid,
  .article-grid,
  .coupon-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-gallery {
    position: static;
  }

  .attribute-grid,
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  body {
    background: #f7f5f1;
  }

  .app-shell {
    padding-bottom: calc(78px + env(safe-area-inset-bottom));
  }

  .site-header {
    position: sticky;
    width: 100%;
    padding: 14px 14px 10px;
    border-bottom: 1px solid var(--line);
    background: rgba(247, 245, 241, 0.94);
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand strong {
    font-size: 18px;
  }

  main {
    width: 100%;
    padding: 0 14px;
  }

  .search-box {
    padding: 7px 7px 7px 13px;
  }

  .search-box button {
    padding: 9px 13px;
  }

  .hero-section {
    gap: 16px;
    min-height: 0;
    padding-top: 12px;
  }

  .hero-copy {
    padding: 10px 0 0;
  }

  h1 {
    font-size: 43px;
  }

  h2 {
    font-size: 24px;
  }

  .hero-subtitle {
    margin-top: 14px;
    font-size: 15px;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .hero-media {
    min-height: 256px;
    border-radius: 24px;
  }

  .hero-badge {
    right: 14px;
    bottom: 14px;
    min-width: 112px;
    padding: 12px;
  }

  .category-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    overflow: visible;
    padding: 12px 0 18px;
  }

  .category-chip {
    width: 100%;
    min-height: 44px;
    padding: 10px 8px;
    white-space: normal;
    text-align: center;
  }

  .promo-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-bottom: 22px;
  }

  .quick-entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    padding: 0 0 20px;
  }

  .quick-entry-grid button {
    min-height: 84px;
    padding: 12px;
  }

  .promo-tile {
    min-height: 150px;
  }

  .section-head {
    display: grid;
    grid-template-columns: 1fr;
    align-items: flex-start;
    gap: 12px;
  }

  .section-head > div {
    min-width: 0;
  }

  .sort-group {
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .sort-group::-webkit-scrollbar {
    display: none;
  }

  .sort-chip {
    flex: 0 0 auto;
  }

  .catalog-layout {
    display: block;
  }

  .category-rail {
    display: none;
  }

  .product-grid,
  .category-page,
  .profile-grid,
  .related-grid,
  .article-grid,
  .coupon-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .collection-page,
  .checkout-page,
  .pay-page,
  .result-page,
  .auth-page,
  .dynamic-page {
    padding: 0 14px;
  }

  .checkout-layout,
  .address-manage-layout,
  .managed-address {
    grid-template-columns: 1fr;
  }

  .compact-form {
    grid-template-columns: 1fr;
  }

  .region-select-grid {
    grid-template-columns: 1fr;
  }

  .pay-amount {
    font-size: 34px;
  }

  .status-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }

  .status-strip button {
    min-height: 68px;
  }

  .status-strip strong {
    font-size: 20px;
  }

  .view-detail {
    padding: 14px 14px 92px;
  }

  .detail-layout {
    gap: 14px;
  }

  .detail-gallery,
  .detail-info-panel,
  .detail-section {
    border-radius: 18px;
  }

  .detail-info-panel,
  .detail-section {
    padding: 18px;
  }

  .detail-info-panel h2 {
    font-size: 23px;
  }

  .detail-thumbs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .detail-actions {
    position: sticky;
    bottom: calc(90px + env(safe-area-inset-bottom));
    z-index: 10;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 -10px 28px rgba(31, 35, 42, 0.1);
    backdrop-filter: blur(18px);
  }

  .attribute-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product-card {
    border-radius: 18px;
  }

  .product-info {
    padding: 12px;
  }

  .product-name {
    min-height: 42px;
    font-size: 14px;
  }

  .price {
    font-size: 17px;
  }

  .stock {
    display: none;
  }

  .card-actions {
    grid-template-columns: minmax(0, 1fr) 44px;
    gap: 8px;
    padding: 0 12px 12px;
  }

  .detail-link {
    min-height: 42px;
    padding: 0 10px;
  }

  .add-button {
    width: 44px;
    height: 44px;
  }

  .cart-layout,
  .profile-hero {
    grid-template-columns: 1fr;
  }

  .checkout-panel {
    position: static;
  }

  .checkout-layout,
  .article-detail,
  .address-manage-layout {
    grid-template-columns: 1fr;
  }

  .article-detail img {
    min-height: 220px;
  }

  .cart-item {
    grid-template-columns: 76px 1fr;
  }

  .cart-item img {
    width: 76px;
    height: 76px;
  }

  .cart-item > .qty-control,
  .cart-item > .remove-button {
    grid-column: 2;
  }

  .dialog-card {
    grid-template-columns: 1fr;
  }

  .dialog-card img {
    min-height: 280px;
    max-height: 46vh;
  }

  .dialog-body {
    padding: 24px;
  }

  .dialog-body h3 {
    font-size: 21px;
  }

  .mobile-tabs {
    position: fixed;
    right: 12px;
    bottom: 12px;
    left: 12px;
    z-index: 30;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 -14px 34px rgba(31, 35, 42, 0.14);
    backdrop-filter: blur(18px);
  }

  .mobile-tab {
    display: grid;
    justify-items: center;
    gap: 4px;
    min-width: 0;
    padding: 8px 2px;
    border: 0;
    border-radius: 18px;
    background: transparent;
    color: #7a808a;
    font-size: 11px;
    font-weight: 800;
  }

  .mobile-tab.is-active {
    background: rgba(116, 18, 51, 0.09);
    color: var(--wine);
  }
}

@media (max-width: 390px) {
  .product-grid,
  .category-page,
  .profile-grid,
  .related-grid,
  .attribute-grid,
  .article-grid,
  .coupon-grid,
  .quick-entry-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 38px;
  }
}