.key-visual {
  width: 100vw;
  height: 100vh;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

.key-visual-wrap {
  width: 100%;
  height: 100%;
}

.key-visual .main-copy {
  font-size: 6rem;
  font-weight: 700;
  color: #fff;
  opacity: 0;
  transition: opacity 1s ease-in-out 1s;
  max-width: 80rem;
}

.key-visual .sub-copy {
  color: #fff;
  font-weight: 400;
  font-size: 2.4rem;
  margin-top: 2.4rem;
  max-width: 89rem;
  line-height: 3.2rem;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  transition-delay: 2s;
}

.key-visual-slide {
  height: 100%;
}

.key-visual-slide .swiper-slide {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -ms-flex-direction: row;
  flex-direction: row;
  -webkit-box-align: flex-end;
  -ms-flex-align: flex-end;
  align-items: flex-end;
  background-position: center;
}

.kmtv {
  background-image: url(../img/KMTV-kv.png);
}

.km450 {
  background-image: url(../img/km450-kv.png);
}

.key-visual-slide .slide-contents {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 10rem 4rem 12rem;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
}

.key-visual-slide .swiper-pagination-bullet {
  background: #9ba2a9;
  opacity: 1;
  width: 1.2rem;
  height: 1.2rem;
  margin: 0 0.8rem !important;
}
.key-visual-slide .swiper-pagination-bullet-active {
  background: #fff;
}

.visual-btn-wrap {
  margin-top: 6.4rem;
}

.key-visual-slide .swiper-horizontal > .swiper-pagination-bullets,
.key-visual-slide .swiper-pagination-bullets.swiper-pagination-horizontal,
.key-visual-slide .swiper-pagination-custom,
.key-visual-slide .swiper-pagination-fraction {
  top: unset;
  bottom: 5rem;
}

.key-visual .video-container,
.key-visual .img-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  z-index: -10;
}
.key-visual .img-container {
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate(-50%, -50%);
}

@media screen and (max-width: 480px) {
  .key-visual .main-copy {
    font-size: 3.2rem;
    max-width: 28rem;
  }
  .key-visual .sub-copy {
    font-size: 1.6rem;
    line-height: 2.4rem;
    margin: 1.6rem 0 3.2rem 0;
    max-width: 28rem;
    opacity: 0.8;
  }
  .visual-btn-wrap {
    margin-bottom: 3.5rem;
  }
  .visual-btn-wrap .btn {
    min-width: 13rem;
    padding: 1rem 2rem;
  }
  .key-visual-slide .slide-contents {
    padding: 0 2rem;
  }
}