.feature-hero {
  display: grid;
  gap: 1rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  background: var(--bg-soft);
}
.feature-hero h2 { margin: 0; font-size: clamp(2rem, 5vw, 4rem); line-height: 1.1; }
.feature-hero p { max-width: 760px; margin: 0; color: var(--muted); }
.feature-section { margin-top: 1.5rem; }
.choice-grid { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1rem 0; }
.choice-chip { cursor: pointer; }
.choice-chip input { position: absolute; opacity: 0; pointer-events: none; }
.choice-chip span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: .65rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  font-weight: 900;
}
.choice-chip input:checked + span { background: var(--main); border-color: var(--main); color: white; }
.compact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.course-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.course-card, .visitor-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.course-card h3, .visitor-card h3 { margin: 0 0 .4rem; }
.mini-list { display: grid; gap: .55rem; margin-top: .9rem; }
.mini-list button {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-soft);
  padding: .75rem;
  cursor: pointer;
}
.mini-list strong, .mini-list span { display: block; }
.mini-list span { color: var(--muted); font-size: .85rem; }
.visitor-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.info-list { display: grid; gap: .6rem; margin: 0; padding: 0; list-style: none; }
.info-list li { padding: .75rem; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-soft); }
.share-row { display: grid; grid-template-columns: 1fr auto; gap: .6rem; margin: 1rem 0; }
.share-row input { margin-top: 0; }
.crowd-badge { background: #fff7ed; color: #9a3412; }
@media (max-width: 880px) {
  .compact-grid, .course-grid, .visitor-grid, .share-row { grid-template-columns: 1fr; }
}