.el-main{background-color:#e9eef3;color:#333;padding:0}.el-header{position:fixed;padding:0;height:60px!important;z-index:99;width:1920px}.el-header .head-ff{height:60px;width:1920px;background-color:rgba(0,0,0,.2);opacity:.9}.mainimg{position:relative}.mainimg,.mainimg img{width:100%;height:530px}.mainimg img{position:absolute;top:0}.mainpp{position:relative;height:100vh;top:0;display:flex;align-items:center;justify-content:center;text-align:center;background:rgba(19,60,154,.2)}.mainpp,.mainpp video{width:100%}.mainpp .join_btn{position:absolute;bottom:180px;width:350px;height:90px;background:url(../../static/img/joinbtn.7b2b7ea3.png) no-repeat;background-size:100% 100%;cursor:pointer;z-index:5}.mainpp .down{width:50px;transform:rotate(90deg);bottom:90px}.mainpp .down,.mainpp .down_txt{position:absolute;cursor:pointer;z-index:4}.mainpp .down_txt{font-size:16px;bottom:55px;color:#d8dbdf}.el-footer{background-color:#b3c0d1;color:#333;text-align:center}.el-menu.el-menu--horizontal{border:none}.el-menu .el-menu-item.is-active{font-weight:700;border-bottom:5px solid #2ed8f3!important}.el-menu{background:transparent}.el-menu li{background:none!important;text-align:center}.el-menu .el-menu-item{line-height:28px;padding-top:15px;margin-left:40px}.el-menu .mainpCn{font-size:20px;font-family:Source Han Sans CN}.el-menu .mainpEn{font-size:16px;font-family:Arial;color:#6bd1d0}