.banner{
    background: url(/special/2017/MBAxz/img/ban-bg.jpg) no-repeat center;
    background-size: cover;
    height: 875px;
}
@media screen and (min-width: 1300px) {
    .header {
        padding-left: 170px;
        padding-right: 170px;
    }
}
.banner .container{
    text-align: center;
}
.banner .container a{
    display: inline-block;
    font-size: 48px;
    margin-top: 80px;
    font-family: nav_font;
    color: #fff;
}

.header .logo{
    padding-top: 50px;
}
.header .nav{
    padding-top: 50px;
}

.header .nav .nav-ls li{
    float: left;
    padding-bottom: 1em;
    transition: all ease 1s;
    -webkit-transition: all ease 1s;
    border-bottom: 2px solid transparent;
}
.header .nav .nav-ls li a{
    font-family: nav_font;
    display: block;
    line-height: 1em;
    color: #fff;
    padding: 0px 0.9em;
    border-right: 1px solid #f0f0f0;
}
.border-none{
    border:none !important;
}
.header .nav .nav-ls li:hover{
    border-bottom: 2px solid #fff;
}
.banner .ban-tit{
    display: block;
    margin:0px auto;
    margin-top: 150px;
}

.live{
    border-bottom: 1px solid #868686;
}
.live-video{
    width: 1200px;
    height: 690px;
    background-image: url(/special/2017/MBAxz/img/ban-video-bg.jpg);
    margin-top: 150px;
}
.live-text{
    color: #3f3f3f;
    font-size: 24px;
    padding: 110px 0.8em 145px 0.8em;
    text-align: justify;
    line-height: 50px;
}

.item-tit{
    font-family: tit;
    padding-top: 90px;
    padding-bottom: 80px;
    width: 244px;
    margin: 0px auto;
    font-size: 34px;
    color: #0f278f;
    letter-spacing: 3px;
    text-align: justify;
    background-image: -webkit-linear-gradient(56deg, #0f278f, #006fe1 50%, #2da9ff 60%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ppt-down{
    background: #f6f6f6;
    padding-bottom: 100px;
}
.ppt-ls{
    width: 1210px;
    margin-right: -5px;
    margin-left: -5px;
}
.ppt-ls li{
    float: left;
    margin-right: 5px;
    margin-left: 5px;
    margin-bottom: 50px;
}
.ppt-ls .top{
    background: #fff;
    text-align: center;
    padding-bottom: 30px;
    box-shadow: 1px 1px 5px #ccc;
}
.ppt-ls .video{
    width: 292px;
    height: 200px;

    
}
.ppt-ls .sch-name{
    font-family: nav_font;
    margin-top: 30px;
    font-size: 24px;
    color: #0f278f;
    background-image: -webkit-linear-gradient(56deg, #0f278f, #006fe1 50%, #2da9ff 60%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.ppt-ls .sch-tea{
    font-family: nav_font;
    margin-top: 16px;
    font-size: 18px;
    color: #464646;
}
.ppt-ls .bottom{
    margin-top: 8px;
}
.ppt-ls .down{
    display: block;
    color: #fff;
    line-height: 25px;
    font-size: 14px;
    text-align: center;
    background: #1b6ee9;
}

.lb-group{
    overflow: hidden;

}
.lb{
    position: relative;
    width:1200px;
    height: 780px;
    margin:0px auto;
}
.mask-left,.mask-right{
    position: absolute;
    width: 1200px;
    height: 780px;
    background: rgba(0,0,0,0.6);
    z-index: 10;
}
.mask-left{
    left: -1200px;
}
.mask-right{
    right: -1200px;
}
.lb-btn{
    position: absolute;
    top: 357px;
    width: 100%;
    z-index: 20;
}
.lb-pre,.lb-next{
    width: 62px;
    height: 62px;
}
.lb-pre{
    margin-left: -110px;
    background: url(/special/2017/MBAxz/img/pre-btn.png) no-repeat center;
}
.lb-next{
    margin-right: -110px;
    background: url(/special/2017/MBAxz/img/next-btn.png) no-repeat center;
}
.lb-ul{
    position: absolute;
    top: 0px;
    left: -1200px;
    width: 100000px;
}
.lb-ul li{
    float: left;

}
.lb-ul li img{
    width: 1200px;
}

.advance{
    padding-top: 150px;
    padding-bottom: 150px;
}
.advance .fl{
    width: 50%;
}
.advance .fr{
    width: 508px;
}
.advance .fr p{
    padding-bottom: 50px;
    line-height: 50px;
    color: #3f3f3f;
    font-size: 24px;
}

.about{
    padding-top: 70px;
    padding-bottom: 70px;
    background: #2d2d32;
}
.about h2{
    font-size: 24px;
    letter-spacing: 5px;
    padding-bottom: 25px;
    color: #e7e7e7;
}
.about p{
    line-height: 30px;
    color: #b4b4b4;
}
.footer{
    text-align: center;
    height: 86px;
    background: #1e2022;
}
.footer p{
    padding-top: 15px;
    line-height: 30px;
    text-align: center;
    font-size: 12px;
    color: #fff;
}


@font-face{
    font-family: nav_font;
    src:url(/special/2017/MBAxz/img/nav-font.OTF);
}
@font-face{
    font-family: tit;
    src:url(/special/2017/MBAxz/img/tit.OTF);
}