/*开屏引导动画*/
.openVI {
    position: fixed;
    width: 100%;
    height: 100vh;
    background: #fff;
    z-index: 99999999999;
    overflow: hidden;
    display: block;
}
.openVI .logo {
    
    
}
.openVI .logo img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    -webkit-transform: translate(-50%,-50%);
   
    text-align: center;
}
.openVI .logo img.VI  {
    z-index: 3;
    width:100%;
    max-width: 200px;
}