.kv {
  height: calc(100vh - 70px);
  position: relative;
}

.kv-ttl, .kv-subDes {
  position: absolute;
  z-index: 2;
}

.kv-ttl {
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
.kv-ttl img{
  width: 60%;
  margin: auto;
}

@media (min-width: 481px) {
  .kv-ttl {
    width: 50%;
  }
}

@media (max-width: 480px) {
  .kv-ttl {
    width: 88%;
    top:40%;
  }
}

.kv-subDes {
  top: 10px;
}

@media (min-width: 481px) {
  .kv-subDes {
    width: 20%;
    left: 20px;
  }
}

@media (max-width: 480px) {
  .kv-subDes {
    width: 40%;
    left: 10px;
  }

}

.kv-bg {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

@media (max-width: 480px) {
.kv-bg {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

}

.kv-bg li {
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-position: center;
  background-size: cover;
  width: 100%;
  height: 100%;
  opacity: 0;
  position: relative;
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
  -webkit-transition: opacity 2s linear, -webkit-transform 7.5s linear;
  transition: opacity 2s linear, -webkit-transform 7.5s linear;
  transition: opacity 2s linear, transform 7.5s linear;
  transition: opacity 2s linear, transform 7.5s linear, -webkit-transform 7.5s linear;
}

.kv-bg li:not(:first-child) {
  position: absolute;
  top: 0;
  left: 0;
}

.kv-bg li.show_ {
  opacity: 1;
}

.kv-bg li.zoom_ {
  -webkit-transform: scale(1.1);
  -ms-transform: scale(1.1);
  transform: scale(1.1);
}

.kv-bg li:nth-of-type(1) {
  background-image: url("../img/top/kv/img_01.jpg");
}

.kv-bg li:nth-of-type(2) {
  background-image: url("../img/top/kv/img_02.jpg");
}

.kv-bg li:nth-of-type(3) {
  background-image: url("../img/top/kv/img_03.jpg");
}

.kv-bg li:nth-of-type(4) {
  background-image: url("../img/top/kv/img_04.jpg");
}

.kv-bg li:nth-of-type(5) {
  background-image: url("../img/top/kv/img_05.jpg");
}