.case-page {
  --ink: #102e49;
  --muted: #40566a;
  --accent: #ffc365;
  max-width: 1240px;
  margin: auto;
  padding: 28px clamp(16px, 4vw, 56px) 64px;
  color: var(--ink);
  font: 17px/1.65 system-ui, sans-serif;
}
.case-page *, .case-page { box-sizing: border-box; }
.case-page a { color: #184d73; text-decoration: underline; text-underline-offset: 3px; }
.case-page a:focus-visible { outline: 3px solid #b86609; outline-offset: 3px; }
.case-page .case-back { display: inline-block; margin-bottom: 18px; font-size: 15px; }
.case-page .case-hero { padding: clamp(24px, 5vw, 60px); border-radius: 18px; background: var(--ink); color: white; }
.case-page .case-label { margin: 0 0 12px; color: var(--accent); font-size: 13px; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
.case-page h1 { margin: 0; max-width: 23ch; color: white; font: 750 clamp(32px, 4.1vw, 56px)/1.08 system-ui, sans-serif; letter-spacing: -.035em; }
.case-page .case-services { margin: 16px 0 0; color: #d5e6f4; font-size: 16px; }
.case-page .case-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(245px, 30%); gap: clamp(24px, 4vw, 52px); align-items: start; margin-top: 28px; }
.case-page .case-sidebar { grid-column: 2; grid-row: 1; padding: 24px; background: #f0f5fa; border-top: 5px solid #e8a13e; border-radius: 10px; }
.case-page .case-body { grid-column: 1; grid-row: 1; min-width: 0; }
.case-page h2 { margin: 28px 0 10px; color: var(--ink); font: 730 clamp(22px, 2.5vw, 30px)/1.2 system-ui, sans-serif; letter-spacing: -.02em; }
.case-page .case-sidebar h2 { margin: 0; font-size: 20px; }
.case-page dl { margin: 12px 0 20px; }
.case-page dl div { display: flex; flex-direction: column-reverse; border-bottom: 1px solid #c6d5df; padding: 12px 0; }
.case-page dt { color: var(--muted); font-size: 14px; }
.case-page dd { margin: 0; color: var(--ink); font-size: 32px; font-weight: 760; line-height: 1.15; }
.case-page .case-action { display: inline-block; padding: 10px 18px; background: var(--ink); color: #fff; border-radius: 6px; font-weight: 650; font-size: 15px; text-decoration: none; }
.case-page .case-body > p:first-child { margin-top: 0; font-size: 20px; }
.case-page figure { margin: 22px 0; }
.case-page figure img { display: block; width: 100%; height: auto; border: 1px solid #d1dde6; border-radius: 9px; }
.case-page figcaption { padding-top: 8px; color: var(--muted); font-size: 14px; }
.case-page .case-highlight { background: #f2f6fa; border-left: 4px solid #e8a13e; padding: 18px 22px; margin: 22px 0; }
.case-page .case-highlight h2 { margin-top: 0; }
.case-page .case-highlight p:last-child { margin-bottom: 0; }
.case-page .case-related { border-top: 1px solid #c6d5df; padding-top: 18px; margin-top: 30px; }
@media (max-width: 760px) {
  .case-page .case-grid { display: flex; flex-direction: column; }
  .case-page .case-grid > * { width: 100%; }
  .case-page .case-sidebar { padding: 18px; }
  .case-page dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
  .case-page dd { font-size: clamp(20px, 5vw, 29px); }
  .case-page dt { font-size: 13px; line-height: 1.35; }
  .case-page dl div { justify-content: flex-end; gap: 4px; }
}