/* Full-width interior banners with the normal page column beneath them. */
.section-banner {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  max-width: none;
  min-height: clamp(205px, 23vw, 310px);
  padding: clamp(30px, 4vw, 58px) 48px;
  margin: 0 0 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius, 10px);
  overflow: hidden;
}

.section-banner h1 {
  max-width: 26ch;
  margin: 0 0 14px;
  font-size: clamp(30px, 3.7vw, 54px);
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.section-banner p {
  max-width: 760px;
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
}

.section-banner .item-category { margin: 0 0 12px; }
.section-banner .article-meta { margin: 16px 0 0; font-size: 12px; }
.section-banner .article-meta time { color: inherit; }
.chem001 .section-banner h1 { letter-spacing: -.04em; }

.section-banner > .section-banner-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  border-radius: inherit;
}

.section-banner > :not(.section-banner-image) { position: relative; z-index: 1; }

main.section-banner-layout {
  --banner-gutter: 40px;
  display: grid;
  width: 100%;
  max-width: none;
  grid-template-columns: minmax(0, 1fr) min(1200px, calc(100% - 2 * var(--banner-gutter))) minmax(0, 1fr);
}

main.section-banner-layout > * { grid-column: 2; min-width: 0; }

main.section-banner-layout > .section-banner {
  grid-column: 1 / -1;
  margin-inline: 0;
  border-inline: 0;
  border-radius: 0;
  padding-inline: max(var(--banner-gutter), calc((100% - 1200px) / 2));
}

/* The breadcrumb directly follows the banner. */
main.section-banner-layout:has(> .breadcrumbs) { padding-top: 0; }
main.section-banner-layout > .section-banner:has(+ .breadcrumbs) { margin-bottom: 0; }
main.section-banner-layout > .breadcrumbs {
  margin: 0 0 28px;
  padding-block: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

@media (max-width: 1100px) {
  main.section-banner-layout { --banner-gutter: 24px; }
}

@media (max-width: 760px) {
  .section-banner { margin-bottom: 26px; }
  .section-banner p { font-size: 15px; }
}

@media (max-width: 640px) {
  main.section-banner-layout { --banner-gutter: 18px; }
  .chem001 main.section-banner-layout { --banner-gutter: 20px; }
  main.section-banner-layout > .breadcrumbs { padding-block: 13px; margin-bottom: 22px; }
}