.nav-header {
    width: 1200px;
    height: 100px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.nav-header .menu {
    display: none;
}

.nav-header .logo {
    cursor: pointer;
    height: 100%;
    margin-right: 100px;
}

.nav-header .nav-list {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.nav-header .nav-list > li {
    position: relative;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    margin: 0 20px;
    padding: 20px 0;
}

.nav-header .nav-list > li:after {
    content: "";
    width: 0;
    height: 2px;
    background: #0D438D;
    position: absolute;
    top: 75%;
    left: 50%;
    transition: all .2s;
}

.nav-header .nav-list > li:hover:after {
    left: 0%;
    width: 100%;
}

.nav-header .nav-list > li:hover > a {
    color: #0D438D;
}

.nav-header .nav-list > li.active a {
    color: #0D438D;
}

.nav-header .nav-list > li.active:after {
    left: 0%;
    width: 100%;
}

.nav-header .nav-list > li:nth-child(2) {
    position: relative;
}

.nav-header .nav-list > li:nth-child(2):hover .slidedown {
    display: block;
}

.nav-header .nav-list > li:nth-child(2):hover .triangle {
    display: block;
}

.nav-header .nav-list > li .slidedown {
    display: none;
    width: 80px;
    position: absolute;
    top: 55px;
    left: -8px;
    right: 0;
    margin: auto;
    z-index: 99;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 10px 0;
    border-radius: 6px;
}

.nav-header .nav-list > li .slidedown li {
    width: 80px;
    color: #FFFFFF;
    font-size: 14px;
    padding: 5px 0;
}

.nav-header .nav-list > li .slidedown li:hover {
    background-color: #666666;
}

.nav-header .nav-list > li .slidedown li.active {
    background-color: #666666;
}

.nav-header .nav-list > li .slidedown li a {
    color: #FFFFFF;
}

.triangle {
    display: none;
    position: absolute;
    top: 50px;;
    left: 0;
    right: 0;
    margin: auto;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid rgba(0, 0, 0, 0.8);
}

.nav-header .language-tab {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.nav-header .language-tab li {
    font-weight: 500;
    cursor: pointer;
}

.nav-header .language-tab li:hover {
    color: #0D438D;
}

.nav-header .language-tab li:first-child {
    margin-bottom: 5px;
}

.nav-header .language-tab li.active {
    color: #0D438D;
}

.nav-header .contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.nav-header .contact-info li {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.nav-header .contact-info li:first-child {
    margin-bottom: 15px;
}

.nav-header .contact-info li img {
    width: 20px;
    margin-right: 10px;
}

.nav-header .contact-info li span {
    color: #7999FF;
}