.case-detail { color: #252525; max-width: 900px; padding: 56px 48px 72px; margin-inline: auto; }
.case-detail p, .case-detail h1, .case-detail h2 { margin: 0; }
.case-detail__back { display: inline-block; font-size: 13px; color: #397b7c; text-decoration: none; padding-block: 10px; }
.case-detail__back:hover { text-decoration: underline; text-underline-offset: 5px; }
.case-detail__back:focus-visible { outline: 2px solid #397b7c; outline-offset: 4px; }
.case-detail .case-detail__label { color: #607f7a; font-size: 12px; letter-spacing: .08em; margin-top: 32px; }
.case-detail h1 { margin-top: 18px; font-size: clamp(24px, 3vw, 36px); line-height: 1.7; font-weight: 700; }
.case-detail__title-part { display: inline-block; max-width: 100%; }
.works-home-link { color: #397b7c; font-size: 13px; text-decoration: none; }
.works-home-link:hover { text-decoration: underline; }
.works-home-link:focus-visible { outline: 2px solid #397b7c; outline-offset: 5px; }
.case-detail__preview { margin: 32px 0 0; overflow: hidden; border: 1px solid #dce0d8; border-radius: 12px; }
.case-detail__preview img { display: block; width: 100%; height: auto; }
.case-detail__illustration { margin: 28px 0 0; padding: 12px; background: #f1ebdf; border-radius: 12px; }
.case-detail__illustration--contact { background: #eaf0f3; }
.case-detail__illustration img { display: block; width: 360px; max-width: 100%; height: auto; margin-inline: auto; }
.case-detail__workflow { margin: 28px 0 0; }
.case-detail__workflow img { display: block; width: 100%; max-width: 620px; height: auto; border: 1px solid #dce0d8; border-radius: 12px; margin-inline: auto; }
.case-detail__workflow figcaption { margin: 12px 0 0; }
.case-detail__sections { margin-top: 40px; }
.case-detail__section { padding-block: 28px; border-top: 1px solid #dce0d8; }
.case-detail h2 { font-size: 20px; font-weight: 600; line-height: 1.8; }
.case-detail__section p { font-family: "Yu Gothic", "Meiryo", sans-serif; font-size: 15px; line-height: 2.1; color: #565e5b; margin-top: 14px; overflow-wrap: anywhere; }
.case-detail .case-detail__intro { margin-top: 24px; font-family: "Yu Gothic", "Meiryo", sans-serif; color: #565e5b; font-size: 16px; line-height: 2.1; }
.case-detail__facts { margin: 32px 0 0; padding: 20px 24px; background: #f3f6f1; border-radius: 12px; font-size: 13px; line-height: 1.9; }
.case-detail__facts > div { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 16px; padding-block: 7px; }
.case-detail__facts dt { color: #397b7c; }
.case-detail__facts dd { margin: 0; font-family: "Yu Gothic", "Meiryo", sans-serif; color: #565e5b; overflow-wrap: anywhere; }
.case-detail h3 { margin: 0; color: #365d55; font-size: 16px; line-height: 1.9; }
.case-detail__comparison, .case-detail__flow { margin: 28px 0 0; }
.case-detail figcaption { margin-bottom: 16px; font-size: 13px; color: #607f7a; line-height: 1.8; }
.case-detail__compare-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.case-detail__compare-grid > div { padding: 24px; border-radius: 12px; background: #f8f7f3; }
.case-detail__compare-grid .case-detail__compare-after { background: #e9f0e9; }
.case-detail__compare-grid ol { margin: 14px 0 0; padding-left: 22px; font-family: "Yu Gothic", "Meiryo", sans-serif; color: #565e5b; font-size: 14px; line-height: 1.9; }
.case-detail__compare-grid li + li { margin-top: 12px; }
.case-detail__list { margin: 18px 0 0; padding-left: 22px; font-family: "Yu Gothic", "Meiryo", sans-serif; color: #565e5b; font-size: 15px; line-height: 2; }
.case-detail__list li + li { margin-top: 8px; }
.case-detail__list li::marker { color: #397b7c; }
.case-detail__points { display: grid; gap: 24px; margin-top: 20px; padding-left: 24px; border-left: 3px solid #b9cdca; }
.case-detail__points p { margin-top: 6px; }
.case-detail__flow ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.case-detail__flow li { padding: 20px; border-radius: 12px; background: #eaf0f3; font-family: "Yu Gothic", "Meiryo", sans-serif; color: #405e6a; font-size: 14px; line-height: 1.9; }
.case-detail__flow li span { display: block; margin-bottom: 8px; font-size: 12px; font-weight: 700; }
.case-detail__text-link, .case-detail__related a { display: inline-block; color: #397b7c; font-size: 14px; line-height: 1.9; text-underline-offset: 5px; }
.case-detail__text-link { margin-top: 20px; }
.case-detail__related { margin-top: 24px; padding-block: 28px; border-top: 1px solid #dce0d8; }
.case-detail__related h2 { font-size: 14px; margin-bottom: 12px; }
.case-detail__closing { margin: 12px 0 28px; padding: 28px; background: #f3f6f1; border-radius: 12px; }
.case-detail__closing p { font-size: 15px; line-height: 2; }
.case-detail__contact { display: inline-block; margin-top: 18px; padding: 12px 20px; background: #2b7476; border-radius: 999px; color: #fff; font-size: 13px; line-height: 1.8; text-decoration: none; }
.case-detail__contact:hover { background: #245f61; }
.case-detail :is(.case-detail__text-link, .case-detail__related a, .case-detail__contact):focus-visible { outline: 2px solid #397b7c; outline-offset: 5px; }
@media (max-width: 600px) {
  .case-detail { padding: 28px 24px 48px; }
  .case-detail__sections { margin-top: 28px; }
  .case-detail h2 { font-size: 18px; }
  .case-detail__section p { font-size: 14px; }
  .case-detail .case-detail__intro { font-size: 15px; }
  .case-detail__facts { padding: 16px 20px; }
  .case-detail__facts > div { grid-template-columns: 1fr; gap: 2px; }
  .case-detail__compare-grid, .case-detail__flow ol { grid-template-columns: 1fr; }
  .case-detail__list { font-size: 14px; }
  .case-detail__closing { padding: 24px 20px; }
}