/* Case reference pages and the case index on the main site template (2026-10-10). */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0 0 22px; font-size: var(--marketing-small, 14px); color: #6b7079; }
.breadcrumb a { color: #4a4f57; text-decoration: none; }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb [aria-current] { color: #33373d; font-weight: 600; }

.case-page .case-hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); align-items: start; }
.case-page .case-hero h1 { max-width: 16em; }
.case-photo { margin: 0; background: #fff; }
.case-photo img { display: block; width: 100%; height: auto; max-height: 620px; aspect-ratio: 3 / 4; object-fit: contain; }
.case-photo figcaption { padding: 10px 14px; font-size: var(--marketing-small, 14px); color: #6b7079; border-top: 1px solid #ececee; }

.case-detail-grid { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 56px; align-items: start; }
.case-spec-card { position: sticky; top: 104px; padding: 26px 24px; background: #f4f4f3; border-top: 3px solid var(--red); }
.case-spec-card h2 { font-size: 20px; letter-spacing: -.01em; margin: 0 0 14px; }
.case-spec-card p { margin: 0 0 12px; font-size: var(--marketing-small, 14px); line-height: 1.65; color: #4e4e51; }
.case-spec-card .case-spec-line { font-size: 17px; font-weight: 600; color: #33373d; }
.case-spec-card .button { display: flex; justify-content: center; width: 100%; margin-top: 10px; text-align: center; }
.case-article { max-width: 760px; }
.case-article section + section { margin-top: 40px; }
.content-section .case-article h2 { font-size: clamp(22px, 1.6vw, 28px); letter-spacing: -.02em; margin: 0 0 14px; }
.case-article p, .case-article li { font-size: var(--marketing-body, 17px); line-height: 1.75; color: #4e4e51; }
.case-article p + p { margin-top: 14px; }
.case-article ul { padding-left: 20px; }
.case-article a { color: var(--ink); }
.case-article a:hover { color: var(--red); }

.case-faq { background: #f4f4f3; }
.case-faq .faq-list { max-width: 900px; }

.case-related .case-related-grid { margin: 8px 0 22px; }
.case-related .sample-thumb { text-decoration: none; }
.case-related .sample-thumb small { display: -webkit-box; margin-top: 2px; font-size: 13px; line-height: 1.4; color: #6b7079;
  -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.case-index-jump { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 12px; }
.case-index-jump a { display: inline-flex; gap: 8px; align-items: center; padding: 9px 14px; border: 1px solid #d9d9dc; border-radius: 3px;
  color: #33373d; font-weight: 600; font-size: var(--marketing-small, 14px); text-decoration: none; background: #fff; }
.case-index-jump a span { color: #6b7079; font-weight: 400; }
.case-index-jump a:hover { border-color: var(--red); color: var(--red); }
.case-index-group { padding-top: 44px; scroll-margin-top: 100px; }
.content-section .case-index-group h2 { font-size: clamp(24px, 2vw, 32px); margin: 0 0 20px; }
.case-index-group h2 span { margin-left: 8px; font-size: 15px; font-weight: 400; color: #6b7079; letter-spacing: 0; }
.case-index-grid { list-style: none; margin: 0 0 16px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 18px; }
.case-index-card { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 16px; padding: 14px; background: #fff; border: 1px solid #e3e3e6; }
.case-index-card:hover { border-color: #c9c9cc; }
.case-index-photo img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: contain; background: #f4f4f4; padding: 6px; mix-blend-mode: multiply; }
.case-index-number { margin: 0 0 4px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: #6b7079; }
.case-index-card h3 { margin: 0 0 6px; font-size: 16px; line-height: 1.35; }
.case-index-card h3 a { color: #33373d; text-decoration: none; }
.case-index-card h3 a:hover { color: var(--red); }
.case-index-card p:last-child { display: -webkit-box; margin: 0; font-size: 14px; line-height: 1.55; color: #5a5a5d;
  -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

@media (max-width: 980px) {
  .case-page .case-hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .case-photo { max-width: 460px; }
  .case-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .case-spec-card { position: static; }
}
@media (max-width: 760px) {
  .case-photo img { max-height: 440px; }
  .case-index-grid { grid-template-columns: 1fr; }
  .case-index-card { grid-template-columns: 84px minmax(0, 1fr); gap: 12px; padding: 12px; }
}