/*主体*/
.mian-pic {
    height: 345px;
    background: url("https://ee.aiit.edu.cn/template/175/xxgcx/_files/img/banner.png") center center no-repeat;
    background-size:100% 100%;
}

.mian-content {
    width: 1200px;
    margin: 0 auto;
    margin-top: 35px;
    margin-bottom: 430px;
    z-index: 10;
    color: #333;
    background: #fff;
    overflow: hidden;
}

.mian-content a:hover {
    color: #006fc1;
}
/*左侧*/
.left-content {
    text-align: left;
    font-size: 16px;
    margin-left: 35px;
    color: #232323;
    width: 278px;
    float: left;
    background: #f5f5f5;
    margin-top: 14px;
}
.left-content div.title {
    padding-left: 10px;
    margin: 12px 12px 12px 10px;
    border-left: 3px solid #118cab;
}
.left-content div.content {
    width: 180px;
    display: inline-block;
    max-height: 52px;
}
.left-content ul {
    padding: 10px 0;
    background: #fff;
}
.left-content ul li {
    font-size: 14px;
    background: #fff;
    height: 65px;
    line-height:26px;
    color:#888;
    margin-bottom: 10px;
}
.left-content ul li a{
    color:#232323;
}
.more {
    float: right;
    font-size: 14px;
    color: #888888;
}
.left-content ul li .num {
    float: left;
    position: relative;
    top:6px;
    color: #fff;
    width: 82px;
    height: 52px;
    /*padding:26px 41px;*/
    margin-right: 10px;

}
.left-content ul li .num:hover {
    box-shadow: 0 0 5px #666;
    -moz-box-shadow: 0 0 5px #666;
    /* -webkit-box-shadow: 0 0 5px #666; */
    cursor: pointer;
}

/*右侧*/
.right-content {
    width: 887px;
    float: left;
}

.main-title img {
    position: relative;
    top: -5px;
}

.main-title .right {
    font-size: 12px;
    color: #888;
    float: right;
    position: relative;
    top: 5px;
}
.right-content .content{
    border-top: 1px solid #cbcbcb;
    margin-top: 14px;
    padding: 26px 0 0 0;
}
.main-title .title {
    font-size: 18px;
    padding: 3px 14px;
    border-left: 4px solid #26a891;
    color: #006fc1;
    font-weight: bold;
}
.right-content .content a{
    width: 680px; ;
    display: inline-block;
}

.right-content .content .content-div {
    border-bottom: 1px solid #e6e6e6;
    padding: 26px 0 20px ;
}
.right-content .content .content-div .pic,.right-content .content .content-div .videos {
    width: 200px;
    height: 130px;
    float: left;
    margin-right: 35px;
    position: relative;
    cursor: pointer;
}
.right-content .content .content-div  .videos:hover .videos-mask {
    position: absolute;
    top: 0;
    width: 200px;
    height: 130px;
    background: #000;
    opacity: 0.3;
    z-index: 2;
}

.right-content .content .content-div  .videos:hover .player {
    position: absolute;
    top: 0;
    width: 200px;
    height: 130px;
    background: url("https://ee.aiit.edu.cn/template/175/xxgcx/_files/img/player.png") center center no-repeat;
    z-index: 3;
}


.right-content .content .content-div .pic img,.right-content .content .content-div .videos img {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
}

.right-content .content .content-div .pic img:hover {
    box-shadow: 0 0 5px #666;
    -moz-box-shadow: 0 0 5px #666;
    -webkit-box-shadow: 0 0 5px #666;
}

.right-content .content .content-div .contents {
    max-height: 130px;
    float: left;
}

.right-content .content .title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
}

.right-content .content p {
    font-size: 14px;
    color: #888;
    max-height: 45px;
    line-height: 24px;
    margin-bottom: 18px;
    overflow: hidden;
}

.right-content .content span {
    font-size: 12px;
    color: #888;
    margin-right: 22px;
}

.right-content .content img {
    margin-right: 12px;
    position: relative;
    top: 2px;
}
@media screen and (max-width: 1200px) {
    .right-content{
        width: 740px;
    }
    .left-content{
        width: 254px;
        margin-left: 30px;
    }
    .left-content div.content{
        width: 160px;
    }
    .right-content .content a{
        width: 500px;
    }
    .mian-content,.header-top,.header,.sidebar .navigation,.footer .links{
        width: 1024px;
    }
}