.banner{
    width: 100%;
    height: 450px;
    overflow: hidden;
    background: url("../images/banner1.jpg") no-repeat center;
}
.address{
    width: 100%;
    height: 40px;
    background: #ffffff;
    overflow: hidden;
}
.address .add-img{
    width: 22px;
    height: 22px;
    float: left;
    margin-top: 9px;
}
.address .add-text{
    width: auto;
    height: 40px;
    font-size: 14px;
    color: #666666;
    line-height: 40px;
    float: left;
    margin-left: 10px;
}
.aboutus{
    width: 100%;
    height: 2760px;
    background: url("../images/aboutus.jpg") no-repeat center center / 100% 100%;
    overflow: hidden;
}
.aboutus .about-head{
    width: 100%;
    height: 86px;
    font-size: 60px;
    color: #ffffff;
    font-weight: bold;
    line-height: 86px;
    margin-top: 112px;
}
.aboutus .about-title{
    width: 100%;
    height: 72px;
    font-size: 40px;
    font-weight: bold;
    color: #ffffff;
    line-height: 72px;
}
.aboutus .logo{
    width: 406px;
    height: 89px;
    margin: 126px auto 0;
}
.aboutus .about-ul{
    width: 750px;
    height: 120px;
    margin: 74px auto 0;
    display: flex;
    justify-content: space-between;
}
.about-ul .about-li{
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    cursor:pointer;
}
.about-li:hover .about-box{
    display: none;
}
.about-li:hover .about-box1{
    display: block;
}
.about-li .about-box{
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: url("../images/aboutus.png") no-repeat center center / 100% 100%;
}
.about-box .about-name{
    width: 100%;
    height: 46px;
    font-size: 36px;
    color: #194ea1;
    text-align: center;
    line-height: 46px;
    margin-top: 10px;
}
.about-box .about-text{
    width: 100%;
    height: 45px;
    font-size: 20px;
    color: #194ea1;
    text-align: center;
    line-height: 45px;
}

.about-li .about-box1{
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: url("../images/aboutus1.png") no-repeat center center / 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: none;
}
.about-box1 .about-name{
    width: 100%;
    height: 46px;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
    line-height: 46px;
    margin-top: 10px;
}
.about-box1 .about-text{
    width: 100%;
    height: 45px;
    font-size: 20px;
    color: #ffffff;
    text-align: center;
    line-height: 45px;
}

.introduction{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin-top: 75px;
}
.introduction .int-head{
    width: 100%;
    height: 54px;
    font-size: 36px;
    color: #333333;
    font-weight: bold;
    text-align: center;
    line-height: 54px;
}
.introduction .int-title{
    width: 100%;
    height: 38px;
    font-size: 24px;
    color: #333333;
    text-align: center;
    line-height: 38px;
}
.introduction .int-text{
    width: 100%;
    height: auto;
    overflow: hidden;
    font-size: 18px;
    color: #333333;
    line-height: 36px;
    margin-top: 35px;
    text-indent:2em
}
.introduction .int-img{
    width: 100%;
    height: 372px;
    margin: 32px auto 0;
}

.advantage{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin-top: 40px;
}
.advantage .adv-head{
    width: 100%;
    height: 46px;
    font-size: 36px;
    color: #333333;
    font-weight: bold;
    text-align: center;
    line-height: 46px;
}
.advantage .adv-title{
    width: 100%;
    height: 36px;
    font-size: 24px;
    color: #333333;
    text-align: center;
    line-height: 36px;
}
.advantage .adv-box{
    width: 100%;
    height: auto;
    overflow: hidden;
    display: flex;
    margin-top: 32px;
}
.adv-box .adv-le{
    width: 700px;
    height: auto;
    overflow: hidden;
    padding-top: 30px;
    box-sizing: border-box;
    font-size: 18px;
    color: #333333;
    line-height: 36px;
    text-indent:2em
}
.adv-box .adv-ri{
    width: 263px;
    height: 286px;
    margin-left: 164px;
}
.vision{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin-top: 90px;
}
.vision .vis-head{
     width: 100%;
     height: 46px;
     font-size: 36px;
     color: #333333;
     font-weight: bold;
     text-align: center;
     line-height: 46px;
 }
.vision .vis-title{
    width: 100%;
    height: 36px;
    font-size: 24px;
    color: #333333;
    text-align: center;
    line-height: 36px;
}
.vision .vis-text{
    width: 100%;
    height: auto;
    overflow: hidden;
    padding-top: 30px;
    box-sizing: border-box;
    font-size: 18px;
    color: #333333;
    line-height: 36px;
    text-indent:2em
}