.header-other-btn {
    display: none;
}

.header-other-btn img {
    vertical-align:unset;
}
/**头部样式**/
 .ilabx-header.header {
    width:100%;
    height:81px;
    background:#fff;
}

.ilabx-header, .jx-header {
    display: none;
}

.header_container {
    width:1200px;
    height:100%;
    margin:0 auto;
    position: relative;
}

.header_container .logoBox {
    position: absolute;
    left:0;
    top:12px;
    z-index: 1;
}

.header_container .logo {
    width: 180px;
    height: auto;
}

.header_container .logo.expert-logo {
    padding-top: 15px;
}

.header_container .logo img {
    width: 180px;
}

.header_container .nav {
    width:100%;
    height:100%;
    line-height:81px;
    padding-left: 200px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position:relative;
    float:left;
}

.en-lang .header_container .nav {
    overflow: hidden;
}

.header_container .nav .nav_item {
    float: left;
    margin:0 16px;
    position: relative;
}

.en-lang .header_container .nav .nav_item {
    margin: 0 13px;
}

.header_container .nav .nav_item>a {
    display: block;
    font-size: 16px;
    color:#404040;
    text-decoration: none;
    /*padding:30px 0;*/
}

.header_container .nav .nav_item:hover>a, .header_container .nav .nav_item.active>a {
    color: #4976e8;
}

.header_container .nav .nav_item:hover>a:after, .header_container .nav .nav_item.active>a:after {
    content:"";
    width:100%;
    height:4px;
    background-color: #4976e8;
    position: absolute;
    bottom:0;
    left:0;
}

.header_container .nav .nav_item .searchInput {
    width:140px;
    height: 44px;
    border:1px solid #eee;
    background-color: #f8f8f8;
    padding: 0 70px 0 15px;
}

.header_container .nav .nav_item .searchInput+span {
    position: absolute;
    right:0;
    top:18px;
    width:54px;
    height:46px;
    background-color: #4976e8;
    color:#fff;
    line-height: 46px;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
}

.header_container .nav #menu {
    float:left;
    /*max-width:800px;*/
}

.header_container .header_container {
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}

.header_container .nav .user-info span a {
    color:#4976e8;
}

.header_container .nav .user-info span {
    color:#4976e8;
    cursor:pointer;
}

.header_container .nav .user-info span.line {
    color:#cfcfcf;
    padding:0 5px;
}

.header_container .nav .user-info .iconfont {
    position: absolute;
    top: -1px;
    left: 0;
    font-size: 15px;
}

.ilabx-header .user-info {
    float: right;
    min-width:125px;
    /*height: 81px;*/
    /*line-height: 81px;*/
    text-align: right;
    position:relative;
}

.ilabx-header .user-info .to-login {
    color:#4976e8;
    float: right;
    height: 81px;
    line-height: 81px;
    position: relative;
    padding-left: 20px;
}

.ilabx-header .user-info .to-register {
    color: #4976e8;
    float: right;
    height: 81px;
    line-height: 81px;
    position:relative;
    padding-left: 10px;
    margin-left: 6px;
}

.header_container .topmenu {
    background: #fff;
    position: absolute;
    width: 120px;
    top: 80px;
    margin-left:-20px;
    text-align: center;
    z-index:10;
    display:none;
}

.header_container .topmenu li {
    cursor: pointer;
    /*padding: 10px;*/
    line-height: 25px;
}

.header_container .topmenu a {
    color: #656468;
    padding: 10px 0;
    width: 100%;
    display: inline-block;
    text-decoration:none;
}

.header_container .people:hover .topmenu {
    display:block;
}

.header_container .people #username {
    color: #4976e8;
    float: right;
    max-width: 85px;
    overflow: hidden;
    height: 80px;
}

.header_container .people #signOff {
    color:#888;
    margin-left:15px;
    float: right;
}

.header_container .people img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    float: right;
    margin-top: 25px;
    margin-right: 10px;
    margin-left: 20px;
}

.subjects-box {
    display: block;
    background-color: #fff;
    width: 567px;
    position: absolute;
    left: -112px;
    top: 85px;
    line-height: inherit;
    height: auto;
    padding: 13px 0;
    visibility: hidden;
    opacity: 0;
    transition: all .3s;
    -webkit-transition: all .3s;
    box-shadow: 0 0 5px rgba(0, 0, 0, .15);
    z-index:1000;
}

.en-lang .subjects-box {
    line-height:1;
}

.subjects-box .bubbleTail {
    position:absolute;
    bottom:100%;
    left: 133px;
    width:0;
    height:0;
    border-width: 11px;
    border-style:solid;
    border-color:transparent;
    border-bottom-width: 11px;
    border-bottom-color:#eee;
    color:#eee;
}

.subjects-box .bubbleTail:after {
    content: "";
    position: absolute;
    top: -7px;
    left: -9px;
    width: 0;
    height: 0;
    border-width: 9px;
    border-style: solid;
    border-color: transparent;
    border-bottom-width: 9px;
    border-bottom-color: #fff;
    color: #fff;
}

.nav_item:hover > .subjects-box {
    opacity: 1;
    visibility: visible;
    top: 88px;
}

.subjects-box>li {
    width: 180px;
    padding: 0 0 0 28px;
    box-sizing: border-box;
    /* line-height: 50px; */
    /* height: 50px; */
    display: table;
    float: left;
}

.subjects-box>li>a {
    display: table-cell;
    color: #333;
    font-size: 14px;
    line-height: initial;
    height: 60px;
    position: relative;
    vertical-align: middle;
}

.subjects-box>li>a:hover {
    color: #4976e8;
}

.subjects-box>li>a .line {
    display: block;
    width: 30px;
    height: 1px;
    background-color: #eee;
    position: absolute;
    top: 0;
    left: 0;
}

.subjects-box.course-center-box {
    width: 120px;
    left: -30px;
    padding: 0;
}

.subjects-box.course-center-box>li {
    float: none;
    width: 100%;
    padding: 0;
    text-align: center;
}

.subjects-box.course-center-box>li>a {
    height: 42px;
}

.subjects-box.course-center-box>li>a:hover {
    background: #d6e2ff;
}

.subjects-box.course-center-box .bubbleTail {
    left: 50px;
}

/*2018-10-23添加*/
 .changeLang {
    position: relative;
    top: 0;
    /*width: 68px;*/
    padding-left: 10px;
    margin: 0 0 0 6px;
    float:right;
    /*display:none;*/
    height: 81px;
    line-height: 81px;
}

.changeLang a {
    color: #4976e8;
    vertical-align: -1;
}

.changeLang.before:before, .ilabx-header .user-info .to-register:before {
    content:"";
    background:#cfcfcf;
    height: 14px;
    width: 1px;
    position:absolute;
    left: 3px;
    top: 33px;
}
/*2019-05-14添加*/
 .nvse-box {
    width:260px;
    /*opacity:1;*/
    /*visibility:visible;*/
    padding:8px 0;
    left:50%;
    margin-left:-130px;
    box-shadow: 0 0px 5px rgba(0, 0, 0, .15);
}

.nvse-box .bubbleTail {
    left:50%;
    margin-left:-10px;
}

.nvse-box>li {
    padding:0;
    width:33.33%;
    text-align:center;
}

.nvse-box>li>a {
    height:24px;
    line-height:24px;
}

.header_container .nav .header-other-btn {
    float: right;
    height: 81px;
    line-height: 81px;
    padding-top: 17px;
    box-sizing: border-box;
    margin-left: 10px;
    /* margin-right: 20px; */
}

.jx-body #north {
    background: #fff;
}

.jx-body .nav-top {
    height: 80px;
    margin: 0 auto;
    width: 1200px;
}

.jx-body .logo {
    float: left;
    margin-top: 21px;
}

.jx-body .user-info span a {
    color:#4976e8;
}

.jx-body .user-info span {
    color:#4976e8;
    cursor:pointer;
}

.jx-body .user-info span.line {
    color:#cfcfcf;
    padding:0 5px;
}

.jx-body .user-info span.iconfont {
    margin-right:5px;
    position: relative;
    top:1px;
}

.jx-body .user-info {
    float: right;
    min-width:125px;
    text-align: right;
    position:relative;
}

.jx-body .user-info .to-login {
    margin: 25px 20px 0 0;
    color:#fff;
    display: inline-block;
    width: 55px;
    height: 30px;
    line-height: 30px;
    border-radius: 30px;
    text-align: center;
    background: #0064ff;
    box-shadow: 1px 2px 4px rgba(0,100,255,0.5);
}

.jx-body .user-info .to-login:hover {
    background: #0556d3;
}

.jx-body .user-info .to-register {
    color: #3b4e73;
}

.jx-body .user-info .people {
    display:block;
    margin-top: 30px;
}

.jx-body .user-info  .people #username {
    color:#4976e8;
    float: right;
}

.jx-body .user-info  .people #signOff {
    color:#888;
    margin-left:15px;
    float: right;
}

.jx-body .user-info  .people img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    float: right;
    margin-right: 10px;
    margin-left: 20px;
    margin-top: -5px;
}

.jx-body .nav-list {
    width: 1200px;
    margin: 0 auto;
}

.jx-body .nav li {
    float: left;
}

.jx-body .nav {
    height: 50px;
    line-height: 50px;
    background: #26265b;
}

.jx-body .nav a {
    color: #fff;
    display: block;
    padding: 0 30px;
    height: 50px;
}

.jx-body .nav .on {
    background: #0047d4;
}

@media screen and (max-width:480px) {
    body {
        min-width: auto;
        overflow-x: hidden;
    }
    
#north {
        position: relative;
        z-index: 2;
    }
    
.header_container {
        width: 100%;
        box-sizing: border-box;
        padding: 15px;
        z-index: 1;
    }
    
.header_container .logoBox {
        left: 15px;
    }
    
.header_container .logo {
        width: 200px;
    }
    
.header_container .nav {
        padding: 0;
        width: 100%;
        position: absolute;
        top: 80px;
        left: 0;
        z-index: 1;
        background-color: #fff;
        border-top: 1px solid #efefef;
        line-height: 50px;
        height: 50px;
        overflow-x: auto;
        overflow-y: hidden;
        float: none;
    }
    
.header_container .nav-items {
        width: 100%;
    }
    
.header_container .clearfix:after {
        content: none;
    }
    
.changeLang {
        display: none!important;
    }
    
#menu:after {
        content: none;
    }
    
.header_container .nav ul {
        float: none !important;
        display: table;
    }
    
.header_container .nav .nav_item {
        display: table-cell;
        float: none !important;
        padding: 0 16px;
        margin: 0;
        white-space: nowrap;
        position: static;
        vertical-align: middle;
    }
    
.header_container .nav-right {
        display: none;
    }
    
.header_container .nav .nav_item>a:after {
        display: none;
    }
    
.header_container .nav .nav_item > a {
        display: block;
        width: 100%;
    }
    
#logoRight > div {
        line-height: 50px !important;
        height: 50px;
    }
    
#logoRight .user-info .iconfont {
        font-size: 14px !important;
    }
    
#logoRight .user-info span a {
        color:#4976e8;
    }
    
#logoRight .user-info span {
        color:#4976e8;
        cursor:pointer;
    }
    
#logoRight .user-info span.line {
        color:#cfcfcf;
        padding:0 5px;
    }
    
#logoRight .user-info span.iconfont {
        margin-right:5px;
        position: relative;
        top:1px;
    }
    
.nav-items #otherBtn .header-other-btn {
        float: none !important;
        padding: 0;
        height: 30px;
        line-height: 30px;
        overflow: hidden;
    }
    
.nav-items #otherBtn .header-other-btn img {
        width: auto;
        max-height: 100%;
    }
    
::-webkit-scrollbar {
        width: unset;
        height: unset;
        overflow: unset;
    }
    
::-webkit-scrollbar-thumb {
        background-color: unset;
        min-height: unset;
        min-width: unset;
        border: unset;
    }
    
::-webkit-scrollbar-track {
        background-color: unset;
        border: unset;
    }
    
.bottom {
        height: auto !important;
        line-height: 2 !important;
        padding: 20px;
        box-sizing: border-box;
    }
    
.bottom p span {
        display: block;
        width: 100%;
        margin: 0;
    }
    .header_container .people img{
        margin-top:10px;
    }
    .header_container .people #username{
        height:60px;
    }
}