.idx_kv {
  background: url(/img/idx_kv.jpg) no-repeat top;
  background-size: cover;
  height: 100vh;
  text-align: center;
  position: relative;
}

.idx_kv h1{
  position:absolute;
  top:50%;
  left: 50%;
  -webkit-transform: translate(-50%,-50%);
  -moz-transform: translate(-50%,-50%);
  -ms-transform: translate(-50%,-50%);
  -o-transform: translate(-50%,-50%);
  transform: translate(-50%,-50%);
  width:80%;
  }
  .idx_kv h1 img{
    width: 100%;
    height: auto;
    max-width: 470px;
  }
  .idx_kv_btm{
  position:absolute;
  bottom:30px;
  left: 50%;
  -webkit-transform: translate(-50%,-50%);
  -moz-transform: translate(-50%,-50%);
  -ms-transform: translate(-50%,-50%);
  -o-transform: translate(-50%,-50%);
  transform: translate(-50%,-50%);
}

.idx_bg1 {
  background-image: url(/img/idx_bg1.jpg);
}

.idx_bg2 {
  background-image: url(/img/idx_bg2.jpg);
}

.idx_pro_img {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-around;
  margin-top: 60px;
}

.idx_pro_img li {
  position: relative;
}

.idx_pro_img li img {
  width: 90%;
  height: auto;
}

.idx_pro_img li.show .idx_out {
  position: absolute;
  max-width: 370px;
  top: 0;
  -webkit-animation: fadeout 2s linear 0s 1 forwards;
}

@-webkit-keyframes fadeout {
  0% {
    opacity: 1;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

.idx_endbtn{
  margin-top: 0 !important;
}

@media screen and (max-width:600px) {
  .idx_pro_img li:nth-child(3), .idx_pro_img li:nth-child(4) {
    display: none;
  }
}