#main,canvas {
  width: 100%;
  height: 100%;
  overflow: hidden;

}
#main canvas{
  background: url('../img/model-bg-pc.jpg?v=1') no-repeat;
  background-size: cover;
  background-position: center;
}
/*btn# {*/
  /*position: absolute;*/
  /*top: 50%;*/
  /*right: 0;*/
  /*background: #f00;*/
  /*width: 100px;*/
  /*height: 100px;*/
/*}*/
.model-btn{
  position: absolute;
  right: 38px;
  top:50%;
}
.model-split{
  width:60px;
  height:90px;
  background: url('../img/model-split.png?v=1') no-repeat;
  margin-top: -222px;
}
.model-group{
  width:57px;
  height:82px;
  background: url('../img/model-group.png?v=1') no-repeat;
  margin-top: -117px;
}

.model-machine{
  width:163px;
  height:186px;
  background: url('../img/model-btn1.png?v=1') no-repeat;
  transform: scale(0.7);
  right:-17px;
}
.model-column{
  width:163px;
  height:186px;
  background: url('../img/model-btn2.png?v=1') no-repeat;
  transform: scale(0.7);
  right:-17px;
  margin-top:113px;
}

@media screen and (max-width: 400px) {
  #main canvas{
    background: url('../img/model-bg-mobile.jpg?v=1') no-repeat;
    background-size: cover;
    background-position: center;
  }
  .model-btn{
    position: absolute;

    top:50%;
  }
  .model-split{
    width:60px;
    height:90px;
    background: url('../img/model-split.png?v=1') no-repeat;
    margin-top: -222px;
    transform: scale(0.7);
    right: 10px;
  }
  .model-group{
    width:57px;
    height:82px;
    background: url('../img/model-group.png?v=1') no-repeat;
    margin-top: -117px;
    transform: scale(0.7);
    right: 10px;

  }

  .model-machine{
    width:163px;
    height:186px;
    background: url('../img/model-btn1.png?v=1') no-repeat;
    transform: scale(0.5);
    left:50%;
    margin-left:-130px;
    margin-top:0;
    top:66%;
    /*margin-top:170px;*/
  }
  .model-column{
    width:163px;
    height:186px;
    background: url('../img/model-btn2.png?v=1') no-repeat;
    transform: scale(0.5);
    left:50%;
    top:66%;
    margin-left:-38px;
    margin-top:0;
    /*margin-top:170px;*/
  }
}


#column{
  border-radius: 10px;
  background: rgba(0,0,0,0.5);
  position: absolute;
  width:80%;
  /*height:80%;*/
  top:50%;
  left:50%;
  transform: translate(-50%,-50%);
  display: none;
}
#column-mask{
  width:100%;
  height:100%;
  position: absolute;
  top:0;
  left:0;
  display: none;
}