/*********************************/
/*           FirstView           */
/*********************************/
.firstview {
  background-image: url(../img/common/type-b_bg.jpg);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: bottom center;
  padding: 15.3% 0 0%;
  position: relative;
  min-height: 100vh;
  height: calc(var(--vh, 1vh) * 100);
  width: 100%;
}

.underlayer .firstview {
  padding: 21.3% 0 0%;
}

.firstview-contents {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%,-50%);
  transform: translate(-50%,-50%);
  text-align: center;
  width: 100%;
}

.firstview-btnArea {
  display: flex;
  align-items: flex-start;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 auto;
  height: 20%;
  width: 72%;
}

.firstview-btnArea__btn {
  width: 48%;
}


/*********************************/
/*             Return            */
/*********************************/
.return {
  position: fixed;
  bottom: 0;
  width: 100%;
}

.return-btnArea {
  margin-left: 3%;
  margin-bottom: 3%;
  width: 13.3%;
}