.top {
    background-color: #010f20;
}

.banner {
    position: relative;
    width: 100%;
    background-color: #010f20;
}

.banner-bg {
    width: 100%;
    height: 488px;
}

.banner-box {
    position: absolute;
    top: 0;
    left: 50%;
    width: 1200px;
    margin-left: -600px;
}

.banner-title {
    position: absolute;
    top: 0;
}

.primary-title {
    padding: 136px 0 16px;
    font-size: 44px;
    line-height: 1.64;
    color: #ffffff;
}

.sub-title {
    padding-bottom: 48px;
    font-size: 20px;
    line-height: 1.6;
    color: #ffffff;
}

/*系统架构*/
.main {
    position: relative;
    padding-bottom: 90px;
    width: 100%;
}

.main-top-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
}

.main-bottom-img {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
}

.main-title {
    width: 100%;
    font-size: 24px;
    line-height: 1.5;
    text-align: center;
    color: #212121;
    padding: 80px 0 64px;
}

.main-body {
    position: relative;
    width: 1200px;
    margin: 0 auto;
    border-radius: 5px;
    background-color: #ffffff;
    border: solid 1px #e5e5e5;
}

.main-img {
    padding: 60px 69px 60px 71px;
    border-radius: 5px;
    background-color: #ffffff;
}

.main-img img {
    width: 1060px;
    height: 429px;
}

/*青莲云提供的服务*/
.core {
    width: 100%;
    padding-bottom: 90px;
    background-color: #f7f7f7;
}

.core-title {
    padding: 80px 0 100px;
    font-size: 24px;
    line-height: 1.5;
    text-align: center;
    color: #212121;
}

.core-body {
    width: 1200px;
    margin: 0 auto;
}

.core-body li {
    position: relative;
    float: left;
    margin: 0 16px;
    width: 368px;
    height: 245px;
    background-color: #ffffff;
}

.core-icon {
    position: absolute;
    top: -36px;
    left: 153px;
    width: 62px;
    height: 72px;
}

.core-head {
    padding: 65px 0 24px;
    font-size: 20px;
    line-height: 1.5;
    text-align: center;
    color: #31a874;
}

.core-content {
    padding: 0 29px;
    font-size: 14px;
    line-height: 1.71;
    text-align: center;
    color: #535353;
}

.lingyang-education {
    float: left;
    font-size: 14px;
    line-height: 1.71;
    text-align: center;
    color: #535353;
    text-decoration: underline;
}

/*客户端展示*/
.platform {
    width: 100%;
    padding-bottom: 90px;
    background: -webkit-linear-gradient(top, transparent 19px, rgba(56, 179, 134, .1) 20px), -webkit-linear-gradient(left, transparent 19px, rgba(56, 179, 134, .1) 20px);
    background: -moz-linear-gradient(top, transparent 19px, rgba(56, 179, 134, .1) 20px), -moz-linear-gradient(left, transparent 19px, rgba(56, 179, 134, .1) 20px);
    background: -o-linear-gradient(top, transparent 19px, rgba(56, 179, 134, .1) 20px), -o-linear-gradient(left, transparent 19px, rgba(56, 179, 134, .1) 20px);
    background: linear-gradient(top, transparent 19px, rgba(56, 179, 134, .1) 20px), linear-gradient(left, transparent 19px, rgba(56, 179, 134, .1) 20px);
    background-size: 20px 20px;
    background-color: #fff;
}

.platform-title {
    padding: 80px 0 65px;
    font-size: 24px;
    line-height: 36px;
    text-align: center;
    color: #212121;
}

.platform-body {
    position: relative;
    width: 1200px;
    height: 542px;
    margin: 0 auto;
}
.platform-body .screen{
    position: absolute;
    top:0;
    left:207px;
    width:786px;
    height:542px;
    z-index: 2;
}
.platform-body .screen img{
    width:100%;
    height:100%;
}
.platform-left,
.platform-right{
    position: absolute;
    top:0;
    left:0;
    width:60%;
    height:542px;
    z-index: 100;
}
.platform-left img,
.platform-right img{
    position: absolute;
    top: 220px;
    left: 0;
    width: 48px;
    height: 100px;
    cursor: pointer;
    opacity: .8;
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
}
.platform-right,
.platform-right img{
    right: 0;
    left: auto;
}

.platform-left:hover img,
.platform-right:hover img{
    opacity: 1;
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
}

.platform-box-left {
    position: absolute;
    top: 92px;
    left: 128px;
    width: 592px;
    /*height: 357px;*/
    height: 400px;
    overflow: hidden;
    z-index: 1;
    opacity: .5;
}
.platform-box-center{
    position: absolute;
    top: 59px;
    left: 252px;
    width: 696px;
    height: 420px;
    overflow: hidden;
    z-index: 3;
}
.platform-box-right{
    position: absolute;
    top: 92px;
    right: 128px;
    width: 592px;
    /*height: 357px;*/
    height: 400px;
    overflow: hidden;
    z-index: 1;
    opacity: .5;
}
.platform-content{
    position: absolute;
    top:0;
    left:0;
    width:2960px;
}
.platform-content li{
    float: left;
    width: 592px;
    height: 357px;
    box-shadow: 0 2px 26px 0 rgba(0,0,0,.1);
}
.platform-box-center .platform-content{
    position: absolute;
    top:0;
    left:0;
    width:3480px;
}
.platform-box-center .platform-content li{
    float: left;
    width: 696px;
    height: 420px;
}

.test {
    width: 100%;
    padding: 80px 0 115px;
    background-color: #f7f7f7;
}

.test-title {
    padding-bottom: 64px;
    font-size: 24px;
    line-height: 1.5;
    text-align: center;
    color: #212121;
}

.test-body {
    position: relative;
    width: 1288px;
    margin: 0 auto;
}

.test-left,
.test-right {
    position: absolute;
    top: 74px;
    left: 0;
    width: 48px;
    height: 100px;
    cursor: pointer;
    opacity: .8;
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
}

.test-right {
    right: 0;
    left: auto;
}

.test-left:hover,
.test-right:hover {
    opacity: 1;
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
}

.test-box {
    position: relative;
    width: 1192px;
    height: 248px;
    margin: 0 auto;
    overflow: hidden;
}

.test-outer {
    position: absolute;
    top: 0;
    left: 0;
    width: 3576px;
}

.test-outer li {
    float: left;
    width: 1192px;
}

.test-item {
    position: relative;
    float: left;
    width: 376px;
    margin-left: 16px;
    height: 248px;
    border-radius: 6px;
    background-color: #ffffff;
    box-shadow: 0 2px 9px 0 rgba(0, 0, 0, 0.06);
}

.test-img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 6px;
}

.test-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 352px;
    padding-left: 24px;
    line-height: 48px;
    font-size: 14px;
    color: #535353;
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
    background-color: #e5e5e5;
}