/* =========================================================
   スクロールで表示（js がクラス .fade-up / .is-shown を付与）
   ========================================================= */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-up.is-shown { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
}