@media (max-width: 900px) {
  .site-header {
    gap: 12px;
    flex-wrap: wrap;
  }
  .brand {
    min-width: 150px;
  }
  .search {
    order: 3;
    flex-basis: 100%;
    max-width: none;
  }
  .header-actions {
    margin-left: auto;
  }
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .hero-art {
    transform: scale(.8);
  }
}
@media (max-width: 620px) {
  .announcement {
    font-size: 9px;
  }
  .site-header {
    padding: 12px 4vw;
  }
  .brand-mark {
    font-size: 25px;
  }
  .brand b {
    font-size: 11px;
  }
  .brand strong {
    font-size: 16px;
  }
  .header-actions {
    gap: 5px;
  }
  .header-actions .btn {
    padding: 9px 10px;
    font-size: 11px;
  }
  .hero {
    margin: 14px 4vw 0;
    padding: 32px 24px;
    min-height: 300px;
  }
  .hero-art {
    display: none;
  }
  .hero h1 {
    font-size: 48px;
  }
  .trust-strip {
    margin: 12px 4vw 0;
    padding: 14px 8px;
  }
  .trust-strip div {
    padding: 0 8px;
  }
  .trust-strip b {
    font-size: 11px;
  }
  .trust-strip span {
    font-size: 10px;
  }
  .section {
    padding: 38px 4vw;
  }
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .product-image {
    height: 135px;
  }
  .product-body {
    padding: 11px;
  }
  .product-body h3 {
    font-size: 13px;
  }
  .price {
    font-size: 16px;
  }
  .info-panel {
    margin: 0 4vw 35px;
    padding: 24px;
    display: block;
  }
  .info-actions {
    margin-top: 18px;
  }
  .footer {
    grid-template-columns: 1fr 1fr;
    padding: 28px 5vw;
  }
  .brand-footer {
    grid-column: 1/-1;
  }
  .footer small {
    grid-column: 1/-1;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .span-2 {
    grid-column: auto;
  }
}