html{
    font-size: calc(100vw/3.75);
}
html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: #fff;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);  
}
.main-wrap{
    z-index: 999;
    width: 100%;
    height: 100vh;
    background: url(../images/bg.jpg) no-repeat;
    background-size: auto 100%;
    background-position: -100px 0px;
    background-color: #000012;
    opacity: 0;
    display: -webkit-box;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
}
.circle{
    width: 0.19rem;
    position: absolute;
    top: 34.15%;
    right: 13.6%;
    display: none;
    -webkit-animation: handMove 1s ease-in-out infinite;
            animation: handMove 1s ease-in-out infinite;
}
#showLogo{
    display: none;
}
.box{
    height: 70vh;
    display: -webkit-box;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-justify-content: space-between;
    justify-content: space-between;
}
.logo{
    width: 2.88rem;
    margin: 0 auto;
}
.logo img{
    width: 100%;
}
.foot{
    position: relative;
}
.btn-bg{
    opacity: 0.3;
    width: 0.80rem;
    height: 0.80rem;
    line-height: 0.80rem;
    padding: 0.2rem;
    margin: 0 auto;
    background: url(../images/light.png) no-repeat;
    background-size: 100% 100%;
    -webkit-animation: breath 2s ease-in-out infinite;
            animation: breath 2s ease-in-out infinite;
}
.btn{
    display: block;
    position: absolute;
    bottom: 0;
    z-index: 999;
    width: 0.80rem;
    height: 0.80rem;
    line-height: 0.80rem;
    padding: 0.2rem;
    margin: 0 auto;
}
.btn img{
    width: 100%;
}

@keyframes handMove{
  from {
    transform:scale(1.2);
    -ms-transform:scale(1.2);  
    -moz-transform:scale(1.2);  
    -webkit-transform:scale(1.2); 
    -o-transform:scale(1.2)  
  }
  to {
    transform:scale(0.9);
    -ms-transform:scale(0.9);   
    -moz-transform:scale(0.9); 
    -webkit-transform:scale(0.9); 
    -o-transform:scale(0.9);  
  }
}
@-webkit-keyframes handMove{
  from {
    transform:scale(1.2);
    -ms-transform:scale(1.2);  
    -moz-transform:scale(1.2);  
    -webkit-transform:scale(1.2); 
    -o-transform:scale(1.2)  
  }
  to {
    transform:scale(0.9);
    -ms-transform:scale(0.9);   
    -moz-transform:scale(0.9); 
    -webkit-transform:scale(0.9); 
    -o-transform:scale(0.9);  
  }
}
@-webkit-keyframes breath{
    0%{ opacity: 0.3 }
    50%{ opacity: 1 }
    100%{ opacity: 0.3 }
}
@keyframes breath{
    0%{ opacity: 0.3 }
    50%{ opacity: 1 }
    100%{ opacity: 0.3 }
}