.screen1{height: 130px;
    padding-top: 212px;
    background: url(/NT/51/images/ketang_01.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;}
.screen1Main{
    width:1200px;
    margin:0 auto;
    color:#fff;
    font-family:'PingFang-SC-Regular';
}
.screen1Main h5{
    font-size:28px;
    line-height: 1;
    margin-bottom:15px;
}
.screen2Inner{width:1200px;margin:0 auto;height:480px;padding-top: 56px;padding-bottom: 108px;}
.classItem{width:580px;height:246px;margin-right: 40px;margin-bottom: 35px;color:#fff;float: left;}
.classItem h5{

    padding-top:29px;
    font-size:24px;
    line-height: 1;
    padding-left:87px;
    height:34px;
    margin-bottom: 10px;
}


.classItem ul{padding-left: 90px;}
.classItem ul li{
    font-size: 20px;
    line-height: 36px;
    list-style: disc;
}
.classItem a{padding-left: 93px;color: #fff;font-size: 16px; margin-top:22px; display:block;}
.classItem a:hover{ text-decoration:underline;}
.classItem1{
    background: url("/NT/51/images/ketang_04.jpg") no-repeat 100%;
}
.classItem2{
    background: url("/NT/51/images/ketang_06.jpg") no-repeat 100%;
}
.classItem3{
    background: url("/NT/51/images/ketang_14.jpg") no-repeat 100%;
}
.classItem4{
    background: url("/NT/51/images/ketang_15.jpg") no-repeat 100%;
}
.classItem1 h5{background: url("/NT/51/images/ke3.png") no-repeat 26px 21px;  }
.classItem2 h5{background: url("/NT/51/images/ke4.png") no-repeat 26px 21px;  }
.classItem3 h5{background: url("/NT/51/images/ke2.png") no-repeat 26px 21px;  }
.classItem4 h5{background: url("/NT/51/images/ke1.png") no-repeat 26px 21px;  }