/*header头部开始*/
.footer, .header{
    min-width: 1520px
}
.header{
    position: fixed;
    height: 80px;
    width: 100%;
    z-index: 999;
    clear: both;
    top:0;
}
.header-bg{
    position: absolute;
    background: #090909;
    height: 80px;
    width: 100%;
    top:0;
    left:0;
}
.header-content{
    position: absolute;
    height: 100%;
    width: 100%;
}
.header a{
    display: flex;
    display:-webkit-flex;
}
.header .logo{
    float: left;
    display:-webkit-flex;
    display:flex;
    justify-content: space-between;
    align-items:center;
}
.logo img{
    height: 30px;
    width: auto;
    margin: 25px 50px 25px 0px;
    margin-left: 25%;
}
/*主导航开始*/
.main-nav{
    float: right;
    height: 100px;
    margin-right: 100px;
    display: flex;
}
.header-nav-list li{
    float: left;
    position: relative;

}
.header-nav-list .nav-list-link{
    display: flex;
}
.header-nav-list .nav-list-link>a{
    color:rgba(255,255,255,0.8);
    font-weight:400;
    line-height: 80px;
    padding:0 16px;
    position: relative;
    font-size: 16px;
}
.header-nav-list .nav-list-link.active a{
    color:rgba(255,255,255,1);
    font-weight:500;
}
.header-nav-list .nav-list-link:hover a{
    color:rgba(255,255,255,1);
}

.header #menu-hover-bg {
    width: 100%;
    height: 50px;
    background: #303030;
    position: absolute;
    top: 80px;
    z-index: 9;
    overflow: hidden;
    opacity: 0.8;
}
.header .nav-item{
    position: relative;
    margin-bottom: 0 !important;
}
.header .main-nav .sub-menu{
    color: #1d2124;
    width: 1000px;
    height: 0rem;
    position: absolute;
    z-index: 999;
    bottom: -20px;
    left:0px;
    top:80px;
    overflow: hidden;
    padding-top: 0px;
    text-align: center;
}
.header .menu-item{
    color: #ffffff;
    height: 50px;
    line-height: 50px;
}
.header .nav-list-link .sub-menu.menulist1{
    left:-240px;
}
.header .nav-list-link .sub-menu.menulist2{
    left:-405px;
}
.header .nav-list-link .sub-menu.menulist3{
    left:-90px;
}
.header .nav-list-link .sub-menu.menulist4{
    left:-55px;
}
.header .nav-list-link .sub-menu.menulist5{
    left:-40px;
}

.sub-menu-list{
    width: 100%;
    margin: 0 auto;
}


.header .sub-menu-list>a{
    display: inline-block;
    float: left;
}

.menu-item{
    color:#ffffff;
    line-height: 50px;
    padding:0 20px;
    font-size: 14px;
}
.menu-item:hover{
    color:#ffffff;
    background-color: #636363;
}
/*主导航结束*/
.china-english .header-nav .btn-group .btn-sm {
    padding: .05rem .05rem;
    font-size: 0.13rem;
    line-height: 5.5;
    border-radius: .2rem;
}
.china-english .nav-list-link:last-child {
    border-left: 1px solid rgba(255,255,255,.2);
    margin-left: 30px;
    padding-left: 30px;
}
.china-english .header-nav .btn-group {
    height: 80px;
    width: 70px;
}
.header-nav .btn-link {
    color: #fff;
}
.china-english .header-nav .btn-link img {
    display: inline-block;
    margin-right: 5px;
    vertical-align: baseline;
    width: auto;
}
.china-english .header-nav .dropdown-menu {
    margin: 0;
    padding: .1rem 0;
    font-size: 0.15rem;
    border-radius: .1rem;
    min-width: 1.5rem;
}
.china-english .header-nav .dropdown-item {
    padding: .05rem .2rem;
}
.china-english .header-nav-list .nav-list-link:hover a.dropdown-item {
    color: #212529;
}
.china-english .header-nav .dropdown-item img {
    display: inline-block;
    margin-right: 5px;
    vertical-align: baseline;
    width: auto;
}
.china-english .header-nav .dropdown-menu .dropdown-divider {
    margin: .05rem 0;
}
.china-english .glyphicon-menu-down:before {
    content: '';
    width: 0;
    height: 0;
    border-top: 5px solid #ffff;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    position: absolute;
    bottom: -15px;
    left: 2px;
    top: -7px;
}
/*header头部结束*/