.index_carousel {
  overflow: hidden;
  width: 100%;
}

.index_carousel-images {
  display: flex;
  transition: transform 0.4s ease-in-out;
}

.index_carousel-images img {
  width: 100%;          /* 每張圖寬 = 父容器寬 */
  flex-shrink: 0;
  object-fit: cover;
}