body{
  padding: 0;
  margin: 0;
  background: #d60014;
}
.bg{
  position: absolute;
}

.box{
  width: 90vw;
  height: 27vw;
  /* background-color: rgba(0, 255, 255, 0.527); */
  display: block;
  position: absolute;
  left: 5vw;
}

.backmini{
  position: absolute;
  left: 3vw;
  top: 6vw;
  /* display: block; */
  display: none;
  border: 0.4vw solid #FFF;
  font-size: 2.1vw;
  width: 18vw;
  height: 10vw;
  border-radius: 10vw;
  text-align: center;
  box-sizing: border-box;
  padding: 0 1vw;
  height: 4vw;
  color: #FFF;
}
.show{
  position: absolute;
  left: 3vw;
  top: 6vw;
  /* display: block; */
  border: 0.4vw solid #FFF;
  font-size: 2.1vw;
  width: 14vw;
  height: 10vw;
  border-radius: 10vw;
  text-align: center;
  box-sizing: border-box;
  padding: 0 1vw;
  height: 4vw;
  color: #FFF;
  display: block;
}

.box1{  
  top: 42vw;
}
.box2{  
  top: 74vw;
}
.box3{  
  top: 107vw;
}

.bg_img{
  display: block;
  width: 100%;
  height: auto;
}
.btn{
  position: absolute;
  left: 50%;
  top: 75.2241238793806%;
  width: 73.3vw;
  height: 9vh;
  background: transparent;
  border: 0;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
}