.slideshow {
  /* height: 400px;
  height: 700px;
  */
  object-fit: cover;
}

.swiper-pagination-bullet-active {
  background: #fff;
}

.swiper-button-next,
.swiper-button-prev {
  opacity: 0;
  /* 初始透明度为0，即隐藏 */
  transition: opacity 0.3s ease;
  /* 平滑过渡效果 */
}

.swiper-container:hover .swiper-button-next,
.swiper-container:hover .swiper-button-prev {
  opacity: 1;
  /* 鼠标悬停时变为不透明，显示按钮 */
}