html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
}

body {
  position: fixed;
  inset: 0;
}

.swiper {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: #000;
}

.swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  user-select: none;
}

.nav-prev {
  left: 12px;
}

.nav-next {
  right: 12px;
}