.swiper {
  width: 100%;
}

.swiper .swiper-slide {
  width: 28vw;
  aspect-ratio: 5 / 4;
}

.swiper .swiper-slide > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

@media only screen and (max-width: 640px) {
  .swiper .swiper-slide {
    width: 90vw;
  }
}