body .main > .top {
    background: url("http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/bg00_73b66f02b5.jpg") no-repeat 0 50%;
    background-size: cover;
    position: relative;
    width: 100%;
    height: 740px;
    text-align: center;
}

body .main > .top > .client {
    font-family: -apple-system,"Microsoft YaHei";
    font-size: 64px;
    color: #fff;
    padding-top: 175px;
    font-weight: bold;
    margin: 0 auto
}

body .main > .top > .qiye {
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    font-size: 18px;
    color: #fff;
    margin-top: 20px;
    margin-bottom: 0
}

body .main > .top > .dot {
    font-size: 12px
}

body .main > .top > .question {
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    font-size: 16px;
    color: #fff;
    margin: 60px auto;
}

body .main > .top > .question > a {
    color: #fff
}

body .main > .top > .livedownload {
    width: 100%;
    margin-top: 86px;
}

body .main > .top > .livedownload > .barcode-container > .barcode-wrapper > .barcode {
    background: url("http://live-cdn.baijiayun.com/homepage/asset/frontend/download/img/appDownLoad_a07f85239e.png") no-repeat;
    background-size: cover
}

body .main > .top > .livedownload > a {
    width: 12.42%;
    height: 176px;
    display: inline-block;
    color: #fff;
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    padding-top: 7px;
    margin-right: 11.736%;
    cursor: pointer;
}

body .main > .top > .livedownload > a > p {
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    font-size: 16px;
    color: #fff;
    margin-top: 18px;
    margin-bottom: 0
}

body .main > .top > .livedownload > a > p:last-child {
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    font-size: 16px;
    color: #fff;
    margin-top: 2px
}

body .main > .top > .livedownload > a > .phone {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/live/icon_app_830eb03a9b.svg);
    width: 52px;
    height: 100px;
    margin: 0 auto;
    background-size: cover
}

body .main > .top > .livedownload > a > .mac {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/live/icon_mac_373c43b28c.svg);
    width: 117px;
    height: 100px;
    margin: 0 auto
}

body .main > .top > .livedownload > a > .windows {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/live/icon_win_e3e2a5ff6f.svg);
    width: 116px;
    height: 100px;
    margin: 0 auto
}

body .main > .top > .livedownload > a:nth-child(3) {
    margin-right: 0
}

.mask {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 4;
    background-color: #000;
    opacity: .2;
    filter: alpha(opacity=20);
}

.dialog,.mask,body>.mask {
    position: fixed;
}

body .livedownload > .barcode-container > .barcode-wrapper {
    position: fixed;
    left: 50%;
    right: 0;
    top: 50%;
    bottom: 0;
    width: 140px;
    height: 140px;
    z-index: 4;
    margin-left: -150px;
    margin-top: -150px;
    padding: 75px;
    border: 4px solid #fff;
    background-color: #fff;
    padding: auto;
}

body .livedownload > .barcode-container > .barcode-wrapper > .barcode-close {
    position: relative;
    top: -70px;
    left: 190px;
    height: 0;
    width: 20px;
    padding: 0;
}

body .livedownload > .barcode-container > .barcode-wrapper > .barcode-close > .one {
    cursor: pointer;
    position: relative;
    display: inline-block;
    width: 20px;
    height: 20px;
    top: 5px;
    left: -10px;
    border-top: 2px solid #8c8c8c;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
}

body .livedownload > .barcode-container > .barcode-wrapper > .barcode-close > .two {
    cursor: pointer;
    position: relative;
    top: -27px;
    left: -3px;
    display: inline-block;
    width: 20px;
    height: 2px;
    border-top: 2px solid #8c8c8c;
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
}

body .livedownload > .barcode-container > .barcode-wrapper > .barcode-desc {
    font-size: 12px;
}

body .livedownload > .barcode-container > .barcode-wrapper > .barcode {
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/download/img/appDownLoad_a07f85239e.png) no-repeat;
    background-size: 100%;
}
body .main > .videoDesc {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/page1_bg_24d7bc2942.png) no-repeat;
    background-size: 100%;
    position: relative;
    width: 100%;
    height: 643.5px;
}
body .main > .videoDesc > .phone {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/imgbg_0d24e5e14a.png) no-repeat;
    background-size: contain;
    position: absolute;
    left: 15%;
    top: 142px;
    width: 443px;
    height: 324px;
}
body .main > .videoDesc > .phone > .video {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img1_icon1_b4a30c813d.svg) no-repeat;
    background-size: contain;
    height: 202px;
    width: 195.48px;
    position: absolute;
    left: 70px;
}
body .main > .videoDesc > .phone > .moutain {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img1_icon3_9bc02ccb93.svg) no-repeat;
    background-size: contain;
    height: 42px;
    width: 75px;
    position: absolute;
    top: 16px;
    left: 48%;
}
body .main > .videoDesc > .phone > .hd {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img1_icon2_254e7da073.svg) no-repeat;
    background-size: contain;
    height: 108px;
    width: 88.86px;
    position: absolute;
    right: 50px;
}
body .main > .videoDesc > .desc {
    position: absolute;
    left: 55%;
    top: 180px;
}
body .main > .videoDesc > .desc > p:first-child {
    font-family: -apple-system,"Microsoft YaHei";
    font-size: 40px;
    color: #515151;
    margin: 0;
}
body .main > .videoDesc > .desc > .line {
    width: 22%;
    height: 5px;
    background-color: #167cff;
}
body .main > .videoDesc > .desc > p:last-child {
    font-family: PingFangSC-Light,"Microsoft YaHei";
    font-size: 16px;
    color: #000;
    line-height: 28px;
    margin-top: 40px;
}
body .main > .classDesc {
    background-color: #fff;
    width: 100%;
    height: 611px;
    position: relative;
    width: 100%;
    height: 643.5px;
    text-align: center;
}
body .main > .classDesc > p:first-child {
    font-family: -apple-system,"Microsoft YaHei";
    font-size: 40px;
    color: #515151;
    margin: 0 auto 27px;
}
body .main > .classDesc > .bg {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/bg2_76d350d7ac.png) no-repeat;
    background-size: cover;
    width: 69.44%;
    margin: 0 auto;
    height: 267px;
}
body .main > .classDesc > .bg1 {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/bg1_e1314183f1.png) no-repeat;
    background-size: cover;
    width: 60%;
    height: 267px;
    position: absolute;
    top: 180px;
    right: 20%;
    left: 20%;
    min-width: 700px;
}
body .main > .classDesc > .bg1 > .pic {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img2_icon1_85fc63630b.svg) no-repeat;
    left: 6.97%;
    top: 78px;
    width: 120px;
    height: 92.6px;
}
body .main > .classDesc > .bg1 > .video {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img2_icon2_2e5b94c4c9.svg) no-repeat;
    top: -18.5px;
    left: 34.29%;
    width: 80px;
    height: 75.6px;
}
body .main > .classDesc > .bg1 > .word {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img2_icon3_ba9848dfc6.svg) no-repeat;
    top: -18.5px;
    right: 34.29%;
    width: 80px;
    height: 92px;
}
body .main > .classDesc > .bg1 > .ppt {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img2_icon4_5a694fba6e.svg) no-repeat;
    right: 6.97%;
    top: 78px;
    width: 80px;
    height: 92px;
}
body .main > .classDesc > .bg1 > .file {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img2_icon0_977c7e95a3.svg) no-repeat;
    left: 40%;
    top: 220px;
    width: 146.1px;
    height: 109.8px;
}
body .main > .classDesc > .bg1 div {
    position: absolute;
    background-size: cover;
}
body .main > .interactDesc {
    background: #f9f9fa;
    -webkit-box-shadow: -2px -2px 4px 0 rgba(217,217,217,0.5);
    box-shadow: -2px -2px 4px 0 rgba(217,217,217,0.5);
    width: 100%;
    position: relative;
    height: 611.7px;
}
body .main > .interactDesc > .desc {
    width: 50%;
    float: left;
    margin-left: 14.71%;
    margin-top: 181px;
}
body .main > .interactDesc > .desc > p:first-child {
    font-family: -apple-system,"Microsoft YaHei";
    font-size: 40px;
    color: #515151;
    margin: 0 auto;
}
body .main > .interactDesc > .desc > .line {
    width: 10%;
    height: 5px;
    background-color: #167cff;
}
body .main > .interactDesc > .desc > .detail {
    font-family: PingFangSC-Light,"Microsoft YaHei";
    font-size: 16px;
    color: #000;
    margin-top: 26px;
    margin-bottom: -11px;
}
body .main > .interactDesc > .pics {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/page3_img3_bg_a4508d4d69.png) no-repeat;
    right: 14%;
    width: 389px;
    height: 421px;
    top: 55px;
}
body .main > .interactDesc > .pics > .img1 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon3_5a12b53229.svg) no-repeat;
    width: 75px;
    height: 74px;
    top: 121.2px;
    left: 31px;
}
body .main > .interactDesc > .pics > .img2 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon4_469dcfd7a5.svg) no-repeat;
    width: 53px;
    height: 71px;
    top: 57.1px;
    left: 157px;
}
body .main > .interactDesc > .pics > .img3 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon2_ca51c076e4.svg) no-repeat;
    width: 58px;
    height: 103px;
    top: 180.3px;
    left: 165px;
}
body .main > .interactDesc > .pics > .img4 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon6_ff4e7c8382.svg) no-repeat;
    width: 56px;
    height: 51px;
    left: 282.8px;
}
body .main > .interactDesc > .pics > .img5 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon5_2c5d6a7614.svg) no-repeat;
    width: 69px;
    height: 68px;
    top: 121.8px;
    left: 283.6px;
}
body .main > .interactDesc > .pics > .img6 {
    position: absolute;
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/img3_icon1_39dc36ea4b.svg) no-repeat;
    width: 69px;
    height: 68px;
    top: 258.2px;
    left: 279.8px;
}
.lightSpeedIn {
    -webkit-animation-name: lightSpeedIn;
    -moz-animation-name: lightSpeedIn;
    -o-animation-name: lightSpeedIn;
    animation-name: lightSpeedIn;
    -webkit-animation-timing-function: ease-out;
    -moz-animation-timing-function: ease-out;
    -o-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
}
body .main > .cloudDesc {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/video/bg_d0e0a1ebeb.png) no-repeat;
    width: 100%;
    background-size: cover;
    height: 800px;
    text-align: center;
    position: relative;
}
body .main > .cloudDesc > p:first-child {
    margin: 0;
    padding-top: 80px;
    font-family: -apple-system,"Microsoft YaHei";
    font-size: 40px;
    color: #515151;
}
body .main > .cloudDesc > p:nth-child(2) {
    margin-top: 39px;
    font-family: PingFangSC-Regular,"Microsoft YaHei";
    font-size: 16px;
    color: #4a4a4a;
}
body .main > .cloudDesc > .pics {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/img4-1_1b77833f29.jpg) no-repeat;
    position: relative;
    width: 573px;
    height: 351px;
    margin: 187px auto 0;
}
body .main > .cloudDesc > .pics > .img1 {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/icon1_48bcf83400.svg) no-repeat;
    position: absolute;
    width: 120px;
    height: 120px;
    left: -50px;
    top: 116px;
}
body .main > .cloudDesc > .pics > .img2 {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/icon2_0ac82de8b9.svg) no-repeat;
    position: absolute;
    width: 140px;
    height: 140px;
    left: 423px;
    top: -80px;
}
body .main > .cloudDesc > .pics > .img3 {
    background: url(http://live-cdn.baijiayun.com/homepage/asset/frontend/common/img/icon3_1bd75a4713.svg) no-repeat;
    position: absolute;
    width: 100px;
    height: 100px;
    left: 509px;
    top: 273px;
}
*,:after,:before {
    -webkit-box-sizing: inherit;
    -moz-box-sizing: inherit;
    box-sizing: inherit;
}

.footer {
    margin-top: 0px !important
}