.case-courses-section {
  padding-top: 105px;
  padding-bottom: 104px;
  background: radial-gradient(circle at 85% 12%, #926c4430, transparent 36%), #0c1b1f;
  border-top: 1px solid #d7b78526;
}
.case-courses-section .section-heading h2 em { color: #efc992; }
.case-course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.case-course-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  min-height: 395px; padding: 27px;
  border: 1px solid #d2ad756c;
  background: linear-gradient(155deg, #28403c, #172b2c 60%, #0e2024);
  box-shadow: inset 0 1px #f9e7bf1c, 0 22px 48px #0410143d;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.case-course-card:nth-child(2) { background: linear-gradient(155deg, #413931, #242d2b 59%, #122329); }
.case-course-card:nth-child(3) { background: linear-gradient(155deg, #3b4537, #24332e 59%, #112328); }
.case-course-card:hover { transform: translateY(-6px); border-color: #f2d49f; box-shadow: 0 27px 60px #020b0f8a; }
.case-course-card::after { content: attr(data-mark); position: absolute; right: -14px; top: 26px; color: #f3d69e0c; font-family: 'Noto Serif SC', serif; font-size: 190px; line-height: 1; pointer-events: none; }
.case-course-top, .case-course-bottom { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 15px; }
.case-course-top { color: #e6bb80; font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.case-course-top span:last-child { color: #aebdaf; letter-spacing: 0; }
.case-course-brand { position: relative; z-index: 1; margin-top: 69px; color: #f6e7ca; font-size: 31px; font-weight: 900; }
.case-course-brand i { display: block; margin-top: 5px; color: #e4c38e; font-size: 10px; font-style: normal; font-weight: 500; letter-spacing: .06em; }
.case-course-card h3 { position: relative; z-index: 1; margin: 21px 0 9px; color: #f4ead8; font-size: 22px; line-height: 1.4; }
.case-course-card p { position: relative; z-index: 1; margin: 0 0 24px; color: #b4c6ba; font-size: 12px; line-height: 1.8; }
.case-course-bottom { align-items: center; margin-top: auto; padding-top: 18px; border-top: 1px solid #dbc08b43; }
.case-course-bottom span { max-width: 150px; color: #9fb6a9; font-size: 10px; line-height: 1.6; }
.case-course-bottom button { flex: none; border: 0; background: transparent; color: #f1cb93; font-size: 11px; font-weight: 800; text-decoration: underline; text-underline-offset: 4px; }
.case-course-note { margin: 21px 0 0; color: #829b90; font-size: 10px; line-height: 1.8; }
.article-source { display: inline-block; margin-top: 20px; padding: 11px 0; border-bottom: 1px solid #d7b884; color: #e8c68d; font-size: 12px; }
@media (max-width: 950px) { .case-course-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 650px) {
  .case-courses-section { padding-top: 76px; padding-bottom: 80px; }
  .case-course-grid { grid-template-columns: 1fr; }
  .case-course-card { min-height: 345px; }
  .case-course-brand { margin-top: 43px; }
}