/* スクロールアニメーション */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* スタガード（時間差）アニメーション */
.stagger-item:nth-child(1) { transition-delay: 0ms; }
.stagger-item:nth-child(2) { transition-delay: 100ms; }
.stagger-item:nth-child(3) { transition-delay: 200ms; }
.stagger-item:nth-child(4) { transition-delay: 300ms; }

/* アクセシビリティ対応 */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}