a{ text-decoration:none} 

#main {
    padding: 20px 0;
    min-height: calc(100% - 140px)
}

.down-wrap {
    position: relative;
    margin: 0 auto;
    width: 1152px;
    height: 480px;
    border-radius: 15px;
    overflow: hidden;
    color: #fff;
    box-shadow: 0 2px 8px 0 rgba(28, 31, 33, .15)
}
.down-wrap h2 {
    font-size: 32px;
    text-align: center;
    line-height: 48px
}

.down-wrap .intro {
    margin-top: 4px;
    font-size: 14px;
    text-align: center;
    line-height: 22px
}

.down-wrap .btn-download {
    position: absolute;
    width: 180px;
    height: 48px;
    display: block;
    line-height: 48px;
    background-image: linear-gradient(-90deg, #ff7621 2%, #f7331c 100%);
    border-radius: 24px;
    font-size: 16px;
    color: #fff
}

.down-wrap .btn-download i {
    margin-top: 14px;
    margin-left: 20px;
    margin-right: 4px;
    float: left;
    font-size: 20px
}

.down-wrap .btn-download.ios {
    top: 204px;
    left: 636px
}

.down-wrap .btn-download.android {
    top: 276px;
    left: 636px
}

.down-wrap .btn-download.android i {
    margin-left: 30px
}

.down-wrap .btn-download.windows {
    top: 150px;
    left: 368px
}

.down-wrap .btn-download.mac {
    top: 150px;
    left: 594px
}

.down-wrap .btn-download.mac i {
    margin-left: 40px
}

.down-wrap .btn-download.mac span {
    position: absolute;
    top: -5px;
    right: -32px;
    width: 64px;
    height: 20px;
    font-size: 12px;
    color: #545c63;
    text-align: center;
    line-height: 20px;
    background: #fff;
    box-shadow: 0 2px 8px 0 rgba(28, 31, 33, .15);
    border-radius: 12px 12px 12px 0
}

.down-wrap .btn-download.disabled {
    background: #aaa;
    cursor: default
}

.app-down {
    margin-top: 37px;
    margin-bottom: 30px;
    background: url(http://xcximg.waibou.com/webimg/pc/bg2.png)
}

.app-down h2 {
    position: absolute;
    top: 50px;
    left: 636px;
    text-align: left
}

.app-down .intro {
    position: absolute;
    top: 138px;
    left: 636px;
    font-size: 16px;
    letter-spacing: 10px;
    line-height: 24px
}

.app-down .img {
    position: absolute;
    left: 180px;
    bottom: 0;
    width: 385px;
    height: 371px;
    background: url(http://xcximg.waibou.com/webimg/pc/img2.png?t=2) no-repeat center center;
    background-size: 100%
}

.app-down .mobile-pic-qrcode {
    width: 112px;
    height: 112px;
    background: url(http://qr.wyxokokok.com/qr.php?size=3&data=https://a.auyou.com/down/dzqj.html);
    position: absolute;
    left: 856px;
    top: 208px
}