.portal-banners {
  container-type: inline-size;
  container-name: bannerrow;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 20px 1.1rem;
  box-sizing: border-box;
  border-bottom: 1px solid var(--border, rgba(0,0,0,.08));
  background: #fff;
}
.portal-banners-stack {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.portal-banner {
  display: block;
  position: relative;
  overflow: hidden;
  min-width: 0;
  flex-shrink: 0;
  background: var(--surface, #f5f5f5);
  border: 1px solid var(--border, rgba(0,0,0,.08));
  border-radius: 0;
}
.portal-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.portal-banner-strip {
  width: 100%;
  height: calc((100cqw - 1px) / 2 / (15 / 4));
}
.portal-banner-tile {
  width: 100%;
  aspect-ratio: 15 / 4;
}
.portal-banner-mobile { display: none; }
@media (max-width: 767px) {
  .portal-banner-strip:has(.portal-banner-mobile) {
    height: auto;
    aspect-ratio: 15 / 4;
  }
  .portal-banner-strip:has(.portal-banner-mobile) .portal-banner-desktop {
    display: none;
  }
  .portal-banner-mobile { display: block; }
}
@media (min-width: 768px) {
  .portal-banner-strip {
    height: calc((100cqw - 3 * 1px) / 4 / (15 / 4));
  }
}
.portal-banners-middle {
  display: none;
  gap: 1px;
  align-items: start;
}
.portal-banners-middle-col {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.portal-banner-empty { min-width: 0; }
.portal-banners-middle-mobile {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  align-items: start;
}
.portal-banner-span-2 { grid-column: span 2; }
@media (min-width: 768px) {
  .portal-banners-middle {
    display: grid;
  }
  .portal-banners-middle-mobile {
    display: none;
  }
}
.portal-banners-bottom {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
}
@media (min-width: 768px) {
  .portal-banners-bottom {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}