.event-history {
  margin-top: clamp(56px, 7vw, 88px);
  padding-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid var(--gray-border);
  scroll-margin-top: 88px;
}

.event-history__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 32px;
}

.event-history__head .sec-label { margin-bottom: 10px; }
.event-history__title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.4;
}

.event-history__intro {
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-sub);
}

.event-history__swipe-hint { display: none; }

.event-history__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 38px 24px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.event-history__grid:focus-visible {
  outline: 2px solid var(--primary-deep);
  outline-offset: 4px;
}

.event-history__grid > li { min-width: 0; }
.event-case { height: 100%; }
.event-case__visual {
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  position: relative;
  background: #edf1f4;
  border-radius: 8px;
}

a.event-case__visual:focus-visible {
  outline: 2px solid var(--primary-deep);
  outline-offset: 4px;
}

.event-case__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.event-case__visual [hidden] { display: none; }

.event-case__visual--contain img {
  object-fit: contain;
  padding: 10px;
}

.event-case__placeholder {
  height: 100%;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  background: linear-gradient(145deg, #e8eff4, #f3f6f8);
  color: #52687b;
}

.event-case__photo-label {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: .18em;
  color: #61798b;
}
.event-case__photo-name {
  font-size: clamp(16px, 1.6vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.event-case__photo-city {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: .08em;
}
.event-case__photo-hint {
  font-size: 10px;
  line-height: 1.6;
  margin-top: 8px;
  color: #61798b;
}

.event-case__body { padding: 18px 0 0; }
.event-case__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 10px;
}
.event-case__location {
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
  color: #2678ad;
}
.event-case__type {
  font-family: var(--font-en);
  font-size: 9px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .05em;
  color: #657284;
}
.event-case__title {
  font-size: 17px;
  line-height: 1.6;
  font-weight: 700;
  overflow-wrap: anywhere;
}
.event-case__title > span {
  display: block;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1.8;
  color: var(--text-sub);
}
.event-case__period {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-top: 12px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.7;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.event-case__period > span[aria-hidden] { color: #7a8795; }
.event-case__venue {
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.9;
  color: var(--text-sub);
  overflow-wrap: anywhere;
}
.event-case__scope {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--gray-border);
  font-size: 11px;
  line-height: 1.9;
  color: var(--text-sub);
  overflow-wrap: anywhere;
}
.event-case__scope > span {
  color: var(--text);
  font-weight: 500;
  margin-right: 10px;
}
.event-case__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1024px) {
  .event-history__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .event-history__grid > li:nth-child(odd) .event-case.rv { transition-delay: 0s; }
  .event-history__grid > li:nth-child(even) .event-case.rv { transition-delay: .1s; }
}
@media (max-width: 768px) {
  .event-history__head { align-items: flex-start; flex-direction: column; gap: 12px; margin-bottom: 24px; }
  .event-history__desktop-br { display: none; }
  .event-history__swipe-hint {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 11px;
    color: var(--text-sub);
  }
  .event-history__grid {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: min(88%, 360px);
    gap: 16px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    overscroll-behavior-x: contain;
    padding-bottom: 16px;
    scrollbar-width: thin;
    scrollbar-color: #a8d4f0 transparent;
  }
  .event-history__grid > li { scroll-snap-align: start; }
  .event-case.rv { transition-delay: 0s; }
  .event-case__visual { border-radius: 6px; }
  .event-case__photo-name { font-size: clamp(16px, 5vw, 20px); }
  .event-case__title { font-size: 18px; }
}