.page-title{
    color: #30363D;
    font-size: .46rem;
    text-align: center;
}
.summary{
    color: #666666;
    font-size: .26rem;
    line-height: 1.875;
    text-align: center;
    margin: .2rem 0;
}

.m-down{
    overflow: hidden;
    width: 100%;
    text-align: center;
    padding: 1rem 0 0;
}
.m-down .link{
    color: #119cfe;
    font-size: .28rem;
    line-height: 2;
    margin-top: .1rem;
}
.m-down .btn{
    min-width: 3.4rem;
    margin:.6rem auto .2rem;
}
.m-down .download-show{
    margin-top: 1rem;
    margin-bottom: .5rem;
    height: 4rem;
    background: url("/images/index/download.png") no-repeat center top;
    background-size: 4.86rem;
}
.plane{
    padding: 0.6rem .3rem .4rem;
    margin-bottom: .4rem;
}
.icon{
    width: 100%;
    padding-top: 100%;
    height: 0;
    box-shadow: 0 80px 60px rgba(0,0,0,0.1);
}
.icon.s_1{
    background: url('/images/platform/s_1.png') no-repeat center center;
    background-size: 85%;
}
.icon.s_2{
    background: url('/images/platform/s_2.png') no-repeat center center;
    background-size: 85%;
}
.icon.s_3{
    background: url('/images/platform/s_3.png') no-repeat center center;
    background-size: 85%;
}
.icon.s_4{
    background: url('/images/platform/s_4.png') no-repeat center center;
    background-size: 85%;
}
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