.header {
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: center;
}

.header_content {
    display: flex;
    width: 1242px;
    min-width: 768px;
    height: 100%;
    flex-wrap: nowrap;
}

.header_content_title {
    display: flex;
    align-items: center;
    flex: 1 0 auto;
}

.header_content_title_icon {
    width: 38px;
    height: 38px;
    margin-right: 21px;
    background: url('../images/nav_logo.png?20200814') center 0/100% 100% no-repeat;
}

.header_content_title_text {
    font-size: 28px;
    font-family: Microsoft YaHei Regular, Microsoft YaHei Regular-Regular;
    font-weight: 400;
    text-align: left;
    color: #000000;
    line-height: 36px;
}

.header_content_nav {
    display: flex;
    width: fit-content;
    height: 100%;
    flex: 0 0 auto;
}

.header_content_nav_item {
    display: flex;
    align-items: center;
    width: fit-content;
    height: 100%;
    font-size: 20px;
    font-family: Microsoft YaHei Regular, Microsoft YaHei Regular-Regular;
    font-weight: 400;
    text-align: center;
    line-height: 28px;
    padding: 0 30px;
}

.header_content_nav_item a {
    text-decoration: none;
    color: #000000;
}

.header_content_nav_item a:hover {
    color: #005dde !important;
}

.header_content_nav_item_checked {
    color: #ffffff;
    background: url('../images/nav_selected_bg.png?20200814') center 0/100% 100% no-repeat;
}

.header_content_lang {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
}

.header_content_lang_item {
    font-size: 20px;
    font-family: Microsoft YaHei Regular, Microsoft YaHei Regular-Regular;
    font-weight: 400;
    text-align: center;
    color: #000000;
    line-height: 28px;
    border-right: solid 1px #000000;
    padding: 0 12px;
}

.header_content_lang_item a {
    color: #005dde !important;
    text-decoration: none;
}