*{
    padding: 0;
    margin: 0;
}  
.clear{
    clear: both;
}

.section2-container{
    background: #fff;
    margin-top: 7px;
}
.section2{
    width: 1200px;
    margin: 0 auto;
    padding-bottom: 30px;
}
.section2 .section-item{
    padding-top: 20px;
}
.section2 .section-item .section-item-title{
    width: 58px;
    height: 25px;
    line-height: 25px;
    font-size: 14px;    
}
.section2 .section-item .section-item-content  {
    margin-bottom: 0;
    width: 1140px;
}
.section2 .section-item .section-item-content   li{
	cursor:pointer;
    float: left;
    padding: 0 16px;
    height: 25px;
    line-height: 25px;
    color: #999999;
    font-size: 14px;
    border-radius: 12px;
    margin-right: 7px;
    margin-bottom: 4px;
    width: 116px;
    text-align: left;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.section2 .section-item .section-item-content   li.active,.section2 .section-item .section-item-content   li:hover{
    background: #2878FF;
    color: #fff;
}
.section2 .class-more{
    width: 60px;
    height: 25px;
    line-height: 25px;
    border: 1px solid #2878FF;
    opacity: 1;
    border-radius: 12px;
    font-size: 12px;
    color: #2878FF;
    text-align: center;
    cursor: pointer;
}
.biaoTou {
    width: auto !important;
}
.biaoTou:hover{
    width: auto !important;
}

.section2 .section-item .section-item-content2  {
    margin-bottom: 0;
    width: 1140px;
}
.section2 .section-item .section-item-content2   li{
	cursor:pointer;
    float: left;
    padding: 0 16px;
    height: 25px;
    line-height: 25px;
    color: #999999;
    font-size: 14px;
    border-radius: 12px;
    margin-right: 7px;
    margin-bottom: 4px;
}
.section2 .section-item .section-item-content2   li.active,.section2 .section-item .section-item-content2   li:hover{
    background: #2878FF;
    color: #fff;
}
.section2 .class-more{
    width: 60px;
    height: 25px;
    line-height: 25px;
    border: 1px solid #2878FF;
    opacity: 1;
    border-radius: 12px;
    font-size: 12px;
    color: #2878FF;
    text-align: center;
    cursor: pointer;
}

.section2 .class-more:hover{
    background: #2878FF;
    color: #fff;
}

.section3-container{
    background: #F7F7F7;
}
.section3{
    width: 1200px;
    margin: 0 auto;
    padding-top: 20px;
}
.section3 li{
    width: 1200px;
    height: 225px;
    background: #FFFFFF;
    opacity: 1;
    border-radius: 6px;
    margin-bottom: 20px;
    padding: 20px 30px 20px 20px;
}
.section3 li .section-lf img{
    width: 230px;
    height: 185px;
    margin-right: 20px;
}
.section3 li .section-rgt .course-title{
    font-size: 24px;
    font-weight: bold;
    color: #333333;
    width: 900px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 10px;
}
.section3 li .section-rgt .section-rgt-1{
    margin-top: 10px;
    height: 24px;
    line-height: 24px;
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #666666;
}
.section3 li .section-rgt .section-rgt-1 span:first-child{
    padding: 0 12px;
    height: 24px;
    line-height: 24px;
    background: rgba(40, 120, 255, .1);
    border-radius: 2px;
    font-size: 12px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #2878FF;
    margin-right: 10px;
    display: inline-block;
}
.section3 li .section-rgt .section-rgt-1 span:nth-child(2){
    padding: 0 12px;
    display: inline-block;
    height: 24px;
    line-height: 24px;
    background: rgba(255, 128, 0, .1);
    border-radius: 2px;
    font-size: 12px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #FF8000;
    margin-right: 20px;
}
.section3 li .section-rgt .section-rgt-2{
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #999999;
    margin-top: 8px;
}
.section3 li .section-rgt .section-rgt-2 span{ 
    color: #2878FF;
    cursor: pointer;
}
.section3 li .section-rgt .section-rgt-3{
    margin-top: 12px;
    height: 40px;
    line-height: 40px;
    text-align: right;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-lf{  
    font-size: 18px;
    font-family: PingFang SC;
    font-weight: 800;
    color: #FC0000;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-lf span{
    font-size: 14px;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-rgt a{
    width: 100px;
    height: 40px;
    border: 1px solid #2878FF;
    opacity: 1;
    border-radius: 4px;  
    font-size: 16px;
    font-weight: 500;
    color: #2878FF;
    display: inline-block;
    margin-left: 20px;
    text-align: center;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-rgt a img{
    margin-right: 5px;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-rgt .listen{
    color: #FF8000;
    border-color: #FF8000;
}
.section3 li .section-rgt .section-rgt-3 .section-rgt-3-rgt a:hover{
    opacity: .7;
}
.section3 li:last-child{
    margin-bottom: 0;
}

.section4{  
    background: #F7F7F7;
    text-align: center;
    padding-top: 50px;
    padding-bottom: 150px;
}
.section4 li{
    display: inline-block;
    line-height: 35px;
    height: 35px;
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
    opacity: 1;
    border-radius: 4px;
    padding: 0 11px;   
    color: #BBBBBB;
    margin: 0 5px;
}
.section4 li.active,.section4 li:hover{  
	cursor:pointer;
    background: #2878FF;
    color: #fff;
    border-color: #2878FF;
}

.cannotClick {
    pointer-events: none;
    cursor: not-allowed;
}