.about-top{
    width: 100%;
    min-width: 1200px;
    height: 400px;
    background: url('/static/home/img/about/about-top.jpg') center top no-repeat fixed;
    background-size: auto 400px;
}
.about-top .center{
    height: 100%;
    padding-top: 100px;
    box-sizing: border-box;
}


.about-company{
    width: 100%;
    height: 640px;
    min-width: 1200px;
    background: url('/static/home/img/about/company-bg.jpg') center bottom no-repeat;
    background-color: #efefef;
}
.about-company .center{
    padding-top: 100px;
}
.about-company .center h2{
    width: 500px;
    font-size: 32px;
}
.about-company .center span{
    display: block;
    width: 500px;
    font-size: 24px;
    margin-top: 16px;
    opacity: .1;
}
.about-company .center p{
    width: 500px;
    line-height: 30px;
    margin: 52px 0 -8px;
}
.about-company .center p:last-child{
    margin-top: 42px;
}
.about-num{
    margin-top: 100px;
    overflow: hidden;
}
.about-num-list{
    float: left;
    width: 25%;
    box-sizing: border-box;
    border-right: 1px solid #dddddd;
    padding: 0 40px;
}
.about-num-list:first-child{
    padding-left: 0;
}
.about-num-list:last-child{
    border: none;
    padding-right: 0;
}
.about-num-list h2{
    font-size: 16px;
    line-height: 1;
    text-align: center;
    margin: -6px 0;
}
.about-num-list h2 span{
    font-size: 60px;
}
.about-num-list>p{
    font-size: 14px;
    margin-top: 30px;
    text-align: center;
    line-height: 1;
}


.about-three{
    width: 100%;
    min-width: 1200px;
    margin-top: 100px;
    padding: 100px 0 180px;
    background: url('/static/home/img/about/about-three-bg.jpg') center no-repeat fixed;
    background-size: cover;
}
.about-three .center{
    overflow: hidden;
}
.about-three-content{
    float: left;
    width: 360px;
    height: 460px;
    position: relative;
    background-color: rgba(255,255,255,.9);
    margin-right: 60px;
    box-sizing: border-box;
    padding: 60px 30px 0;
}
.about-three-content:last-child{
    margin-right: 0;
}
.about-three-content h2{
    font-size: 24px;
    font-weight: bold;
    text-align: center;
}
.about-three-content h2 span{
    font-weight: 200;
}
.about-three-content p{
    line-height: 24px;
    margin-top: 35px;
}
.about-three-content>span{
    display: block;
    position: absolute;
    bottom: 20px;
    left: 120px;
    right: 120px;
    height: 6px;
    background-color: var(--main-color);
}



.about-teacher{
    width: 100%;
    min-width: 1200px;
    background-color: #f5f5f5;
}
.about-teacher>.center{
    padding-bottom: 40px;
    position: relative;
    bottom: 60px;
}
.about-teacher-li{
    float: left;
    width: 270px;
    height: 375px;
    background-color: #fff;
    border-radius: 6px;
    overflow: hidden;
    margin-right: 40px;
}
.about-teacher-li:nth-child(4n){
    margin-right: 0;
}
.about-teacher-li:nth-child(n+5){
    margin-top: 40px;
}
.about-teacher-li>div{
    width: 100%;
    height: 270px;
    overflow: hidden;
}
.about-teacher-li>div img{
    width: 100%;
    height: 100%;
    transition: all .3s;
}
.about-teacher-li>div img:hover{
    transform: scale(1.06);
}
.about-teacher-li>h2{
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    margin-top: 30px;
}
.about-teacher-li>p{
    text-align: center;
    margin-top: 10px;
}



.about-btm{
    margin: 100px auto;
}
.about-btm .content-title p{
    font-size: 20px;
}
.about-btm-content{
    justify-content: space-between;
    margin-top: 60px;
}
.about-btm-r{
    width: 580px;
}
.about-btm-r>p{
    line-height: 30px;
    margin: -8px 0;
}
.about-btm-r>h2{
    font-size: 20px;
    font-weight: bold;
    margin-top: 80px;
}
.about-btm-r>span{
    display: block;
    font-size: 48px;
    font-weight: bold;
    margin-top: 10px;
    opacity: .1;
}
.about-btm-r-ul{
    overflow: hidden;
    padding-top: 20px;
}
.about-btm-r-ul li{
    float: left;
    padding-top: 30px;
    width: 200px;
    margin-right: 40px;
    font-size: 14px;
    line-height: 1;
    color: var(--title-color);
}
.about-btm-r-ul li span{
    font-weight: bold;
    color: var(--main-color);
}