/* 透明卡通素材保持原色，避免 screen 混合导致脸和宇航服泛白。 */
.astronaut img, .hero .gift img, .page-head .wave img, .today .sit img {
  mix-blend-mode: normal;
  object-fit: contain;
  filter: drop-shadow(0 18px 30px rgba(0,0,0,.15));
}
.astronaut img, .hero .gift img { max-height: 68svh; width: 100%; object-fit: contain; }
.astronaut, .hero .gift { display: flex; justify-content: center; }
@media (max-width: 900px) {
  .astronaut img, .hero .gift img { max-height: 35svh; }
}
@media (prefers-reduced-motion: reduce) {
  .astronaut img, .hero .gift img, .page-head .wave img, .today .sit img { animation: none; }
}