*{
    padding: 0;
    margin: 0;
}
.headerbox {
    position: absolute; !important;
}
.mf{
    margin-left: auto;
}

.icon{
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill:currentColor;
    overflow: hidden;
}
.icon-box{
    height: 36px;
    width: 36px;
    display: inline-flex;
    align-items: center;
    border-radius: 50%;
    border: 1px solid rgba(36, 104, 242, 0.5);
    color: rgba(36, 104, 242, 0.5);
    justify-content: center;
    margin-right: 10px;
}
.section-mian-title{
    font-size: 28px;
    font-weight: 400;
    color: #343434;
    padding: 35px 0;
    text-align: center;
}
.section-mian-title span{
    color:rgba(36, 104, 242, 1);
}
.top_bg_div{

    height: 500px;
    padding-top:10rem;
    background: url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2021/09/17/ec_1631848836.png) no-repeat center center;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: bottom;
    display: flex;
    justify-content: center;
    align-items: center;

}
.top_bg_div .title-box{
    color: #fff;
    text-align: center;
    margin-top: 100px;
}
.top_bg_div .title-box .title{
    font-size: 24px;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 76px;
    background: url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2020/11/05/youth_1604545890.png) no-repeat center center;
    background-size:100%;
    width: 600px;
    padding: 0 152px;

}
.top_bg_div .title-box .btn-box{
    margin-top: 50px;
}
.top_bg_div .title-box .btn-box a{
    width: 168px;
    height: 46px;
    display: inline-block;
    border-radius: 21px;
    color:#fff;
    text-align: center;
    line-height: 46px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    margin-right: 20px;
}
.top_bg_div .title-box .btn-box a:last-child{
    margin-right: 0px;
}
.top_bg_div .title-box .btn-box a.active{
    background: linear-gradient(90deg, #000000 0%, #0C64FE 0%, #00A0FE 100%);
    border: 0;
}
.section-turn{
    padding: 30px 0;
    background: #F8F9FB;
}
.section-turn .turn-box ul{
    display: flex;
    text-align: center;
    justify-content: space-between;
}
.section-turn .turn-box ul li{
    height: 200px;
    width: 18%;
    background: #FFFFFF;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.06);
    padding: 0 20px;
    padding-top: 28px;
    overflow: hidden;
    margin-right: 38px;
}
.section-turn .turn-box ul li:last-child{
    margin-right: 0;
}
.section-turn .turn-box ul li .title-box .img-box{
   text-align: center;
}
.section-turn .turn-box ul li .title-box .img-box img{
    width: 40px;
    height: 40px;
}
.section-turn .turn-box ul li .title-box .title{
    font-size: 18px;
    font-weight: 400;
    color: #191C3D;
}
.section-turn .turn-box ul li .desc-box{
    font-size: 13px;
    font-weight: 400;
    color: #66687E;
    line-height: 22px;
}
.section-introduction .introduction-box .introduction-nav-box .mobile-btn{
  display: none;
}
.section-introduction .introduction-box .introduction-nav-box ul{
    display: flex;
    height: 100px;
    justify-content: space-around;
    align-content: center;
    align-items: center;
    background: #fff;
    width: 1140px;
    margin: auto;
}

.section-introduction .introduction-box .introduction-nav-box ul li{
    font-weight: 400;
    color: #364858;
    cursor: pointer;
    display: inline-block;
    text-align: -moz-center;
    text-align: -webkit-center;
    width: 12.5%;
    height: 100%;
    padding-top: 20px;
    font-size: 16px;
    color: #364858;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box span.img-icon{
    width: 28px;
    height: 28px;
    margin-bottom: 15px;
    display: block;
    background:url('https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2020/11/10/youth_1604990582.png') no-repeat center center;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(1) span.img-icon{
    background-position: -416px -11.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(2) span.img-icon{
    background-position: -568px -11.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(3) span.img-icon{
    background-position: -731px -12.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(4) span.img-icon{
    background-position: -883px -12.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(5) span.img-icon{
    background-position: -1023px -12.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(6) span.img-icon{
    background-position: -1174px -11.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(7) span.img-icon{
    background-position: -1324px -12.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box:nth-child(8) span.img-icon{
    background-position: -1480px -12.5px;
}


.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active{
  background:  rgba(36, 104, 242, 1);
   color: #FFFFFF;
}

.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(1) span.img-icon{
    background-position: -416px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(2) span.img-icon{
    background-position: -568px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(3) span.img-icon{
    background-position: -731px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(4) span.img-icon{
    background-position: -883px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(5) span.img-icon{
    background-position: -1023px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(6) span.img-icon{
    background-position: -1174px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(7) span.img-icon{
    background-position: -1324px -59.5px;
}
.section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box.active:nth-child(8) span.img-icon{
    background-position: -1480px -59.5px;
}
.introduction-main-box ul{
    display: none;
}
.introduction-main-box ul:first-child{
    display: block;
}
.introduction-main-box ul li{
    padding-bottom: 60px;
}
.introduction-main-box ul li .container{
    overflow: hidden;
    padding-top: 40px;
}
.introduction-main-box ul li .container>div{
    float: left;
}
.introduction-main-box ul li .container>div .title-box{
    font-size: 24px;
    font-weight: bold;
    color: #191C3D;
    padding: 30px 0;
    position: relative;
}
.introduction-main-box ul li .container>div .title-box:before {
    background: rgba(36, 104, 242, 1);
    position: absolute;
    bottom: 10px;
    left: 0;
    content: "";
    width: 24px;
    height: 2px;
}
.introduction-main-box ul li .container>div .desc-box{
    margin-top: 30px;
}
.introduction-main-box ul li .container>div .desc-box p{
    font-size: 15px;
    color:rgba(25, 28, 61,0.9);
    line-height: 30px;
    opacity: 0.9;
    display: flex;
}
.introduction-main-box ul li .container>div .desc-box samp{
    margin-right: 5px;
}
.introduction-main-box ul li .container>div .desc-box p b{
    color:rgba(25, 28, 61,1);
    font-weight: bold;

}
.introduction-main-box ul li .container>div .desc-box p a.a-btn{
    width: 110px;
    height: 40px;
    background: #2468F2;
    border: 1px solid #2468F2;
    border-radius: 20px;
    color: #fff;
    line-height: 40px;
    text-align: center;
    display: inline-block;
    margin-top: 50px;
}
.introduction-main-box ul li div.left-box{
    width: 36%;
}
.introduction-main-box ul li div.right-box{
    width: 64%;
}

.introduction-main-box ul li div.right-box .img-box img{
    width: 100%;
}
.introduction-main-box ul li div.moblie-pic-box{
       height: 430px;
}
.introduction-main-box ul li div.moblie-pic-box .img-box img{
     display: block;
     height: 100%;
     width: unset;

}
.introduction-main-box ul li:nth-child(2n){
  background: rgba(248, 249, 251, 1)
}
.introduction-main-box ul li:nth-child(2n) .left-box{
    float: right;
    padding-left: 20px;

}

.highlights-box .btn-box{
    text-align: center;
    margin-top: 30px;
    margin-bottom: 50px;
}
.highlights-box .btn-box a{
    width: 110px;
    height: 34px;
    background: #2468F2;
    border: 1px solid #2468F2;
    border-radius: 17px;
    font-size: 14px;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 34px;
    display: inline-block;
}

.section-cost .cost-box{

    height:148px;
    background: url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2021/09/17/ec_1631848477.png) no-repeat center center;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: bottom;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;

}
.section-cost .cost-box .cost-desc-box{
    background: url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2020/11/05/youth_1604548159.png) no-repeat center center;
    background-size: 100%;
    font-size: 20px;
    font-weight: 400;
    color: #FFFFFF;
    width: 320px;
    text-align: center;
    margin-top: 40px;
}
.section-cost .cost-box .cost-desc-box span{
    color: rgba(255, 147, 67, 1);
    font-weight: bold;
    padding: 0 5px;
    font-size: 24px;
}
.section-cost .cost-box .a-btn-box{
    width: 160px;
    height: 40px;
    font-size: 18px;
    font-weight: 400;
    color: #2468F2;
    line-height: 40px;
    background: #FFFFFF;
    border: 1px solid #FFFFFF;
    border-radius: 24px;
    text-align: center;
    display: inline-block;
    margin-top: 50px;
}
.mobile-nav{
    display: none;
}
.swiper-button-next{
    display: none;
}
.introduction-column-box{
    width: 1140px;
    box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    width: 1140px;
    padding: 0;
}
@media screen and (max-width:768px) {

    .mobile-nav{
        display: block;
    }
    .section-mian-title {
        font-size: 20px;
        font-weight: 400;
        color: #343434;
        padding: 20px 0;
        text-align: center;
    }
    .top_bg_div{
        height: 318px;
        background: url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2021/09/17/ec_1631848829.png) no-repeat center center;
        background-size: 100%;
    }
    .top_bg_div .title-box{
        margin-top: 30px;
    }
    .top_bg_div .title-box .title{
        font-size: 14px;
        line-height: unset;
        width: 350px;
        padding: unset;
    }
    .top_bg_div .title-box .btn-box a{
        width: 131px;
        height: 36px;
        line-height: 36px;
        font-size: 14px;
    }
    .top_bg_div .title-box .btn-box{
        margin-top: 30px;
    }
    .section-cost .cost-box{
        background:#2468F2 url(https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2021/09/17/ec_1631848685.png) no-repeat center center;
        background-size: 100%;
        height: 130px;
        padding-bottom: 15px;
    }
    .section-cost .cost-box .cost-desc-box{
        font-size: 14px;
        margin-top: 45px;
        width: 210px;
    }
    .section-cost .cost-box .a-btn-box{
        width: 120px;
        height: 36px;
        line-height: 36px;
        font-size: 12px;
        margin-top: 70px;
    }
    .section-turn {
         padding: 0;
        padding-bottom: 30px;
    }
    .section-turn .turn-box ul{
         display: unset;
         text-align: left;
         justify-content: unset;
    }
    .section-turn .turn-box ul li{
        width: 100%;
        height: unset;
        padding: 20px 20px;
        padding-top: 28px;
        overflow: hidden;
        margin-top: 20px;
    }
    .section-turn .turn-box ul li:last-child{
     margin-right: 0;
     }
    .section-turn .turn-box ul li .title-box{
        display:flex;
        align-items: center;
    }
    .section-turn .turn-box ul li .title-box .img-box{
        margin-right: 20px;
    }

    .section-introduction .introduction-box .introduction-nav-box .container{
        position: relative;
        padding-left: 10px;
        padding-right: 28px;
        width: 100%;

    }
    .section-introduction .introduction-box .introduction-nav-box ul{
        display: none;
        overflow: auto;
        white-space: nowrap;
        height: 70px;
        background:#fff;
        border-radius: 0px 4px 4px 0px;
        width: unset;
    }

    .section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box{
        font-size: 14px;
        display: inline-block;
        width: 110px;
        padding-top:0;

        /* margin-right: 15px; */

        /* padding: 0 10px; */
    }
    .section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box span.img-icon{
        margin-top: 10px;
        margin-bottom: 5px;
    }
    .section-introduction .introduction-box .introduction-nav-box .swiper-container{
        height: 70px;
        text-align: center;
        background: #FFFFFF;
        box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.1);
        border-radius: 4px;
    }
    .section-introduction .introduction-box .introduction-nav-box .swiper-button-next{
        background-color: #E8EBEF;
        background-image: url("https://eccang-img.oss-cn-shenzhen.aliyuncs.com/www/eccang/img/2020/11/05/youth_1604580615.png");
        width: 20px;
        height: 70px;
        top:31%;
        background-size: 10px 14px;
        border-radius: 0px 4px 4px 0px;
        display: block;
    }
    .section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box .nav-list{
        /*width: 110px;*/
        height: 70px;

    }
    .section-introduction .introduction-box .introduction-nav-box .nav-box .nav-list-box span.img-icon{
        margin: 10px auto 5px;
    }
    .section-introduction .introduction-box .introduction-main-box{
        height: unset;
        padding:0;
        padding-bottom: 30px;
        margin: 0;
    }
    .introduction-main-box ul li .container>div .title-box{
        font-size: 20px;
        padding:0;
        padding-bottom: 20px;
    }
    .introduction-main-box ul li .container>div .title-box:before{
        bottom: 0;
    }
    .introduction-main-box ul li .container>div .desc-box{
        margin-top: 20px;
    }
    .introduction-main-box ul li .container>div .desc-box p{
        font-size: 12px;
    }
    .introduction-main-box ul li .container>div .desc-box p a.a-btn{
        margin-top: 0;
        width: 100px;
        height: 36px;
        line-height: 36px;
    }
    .section-introduction .introduction-box .introduction-main-box .left-box {
        width: 100%;
        padding-right: 0;
        margin-bottom: 20px;
    }
    .section-introduction .introduction-box .introduction-main-box .right-box{
        width: 100%;
    }
    .section-introduction .introduction-box{
        padding-bottom: 0;
    }
    .introduction-main-box ul li div.moblie-pic-box .img-box img{
         display: block;
         height: unset;
         width: 100%;
         margin-left: unset;
    }
    .introduction-main-box ul li div.moblie-pic-box{
        height: unset;
    }
    .section-cost .cost-box .cost-desc-box span {
        font-size: 14px;
    }
}