.lart-downlaod-con{
    width: 100%;
    height: 100%;
    /*overflow: hidden;*/
    background: url("../img/down-bg.jpg") top center no-repeat;
    background-size: 100% 100%;
    position: relative;
    overflow: hidden;
}
.lart-nav{
    height: 28px;
    background-size: cover;
    background-color: #fff;
    padding:6px 14px;
    position:relative;
    z-index:100;
    line-height:24px;
    border-bottom: 1px solid #c8c8c8;
}
.lart-ad-title h3{
    font-size: 16px;
    font-weight: bold;
    color: #002147;
    text-align: center;
}
.lart-title{
    display: block;
    width: 240px;
}
.lart-title h3{
    font-size: 12px;
    color:#2d4867 ;
    font-weight: bold;
    line-height: 16px;
}
.lart-title p{
    font-size: 8px;
    color:#2d4867;
    line-height: 15px;
}
.lart-main{
    height:100%;
    margin:-40px 0 -26px;
    padding:40px 0 26px;
    -webkit-box-sizing:border-box;
    -moz-box-sizing:border-box;
    box-sizing:border-box;
}
a.lart-download{
   display: block;
   width: 50px;
   height: 20px;
   line-height: 20px;
   text-align: center;
   border: 1px solid #2d4867;
   text-align: center;
   color:#2d4867;
   font-size: 13px;
   margin-top: 3px;
}
a.lart-download:visited{
    color:#2d4867;
}
.lart-con{
    width: 100%;
    height:100%;
    overflow-y:auto;
}
.lart-logo{
    width: 95px;
    height: 53px;
    margin: 3.25rem auto;
}
.lart-logo img{
    width: 100%;
}
.lart-app{
    width: 130px;
    height: 250px;
    margin: 0 auto 2.75rem;
}
.lart-app img{
    width: 100%;
}
.lart-construct{
    width: 85%;
    margin: 0 auto 2.75rem;
}
.lart-construct p{
    text-indent: 2em;
    line-height: 24px;
    color: #fff;
    font-size: 12px;
}
.lart-foot{
    width: 100%;
    padding:0 5px;
    background: #001a39;
    margin-top: 25px;
    position: absolute;
    bottom: 0px;
    height:24px;
    margin-top:-24px;
    position:relative;
    z-index:100;
}
.lart-foot p{
    text-align: center;
    font-size: 11px;
    color: #fff;
    line-height: 26px;
}
.guid-weixin{
    width: 100%;
    height: 100%;
    position: absolute;
    background: rgba(0,0,0,0.7);
    left: 0px;
    top:0px;
    z-index: 101;
    display: none;
}
.lart-guid-img{
    width: 88%;
    margin:25px auto;
}
.lart-guid-img img{
    width: 100%;
}
.lart-video{
    width: 100%;
    height: 211px;
    position: relative;
    z-index: 5;
}
.lart-video video{
    width: 100%;
    object-fit: fill;
}