.swiper {
  width: 100%;
  /*max-width: 800px;*/
  margin: auto;
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9; /* ou supprime et utilise height */
}

.swiper-slide {
  /* si pas d’aspect-ratio */
   /*height: 400px; */
  display: flex;
  justify-content: center;
  align-items: center;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

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

.swiper .swiper-button-next,
.swiper .swiper-button-prev {
  color: #fff;
}