.header .top-box {
    border-bottom: 1px solid #ddd;

}
  
.header .container {
    display: flex; /* 设置为 Flexbox 容器 */
    align-items: center; /* 垂直居中对齐 */
    padding: 10px; /* 容器内边距 */
}
  
.header .left-section {
    display: flex;
    align-items: center; /* 垂直居中对齐 */
    gap: 10px; /* 元素之间的间距 */
}
  
.header .right-section {
    display: flex;
    align-items: center; /* 垂直居中对齐 */
    gap: 10px; /* 元素之间的间距 */
    margin-left: auto;
}
  
.header .logo-box img {
    display: block; /* 防止图片底部有间隙 */
    width: 50px;
}
  
.header .language-btn {
    border: none;
    background-color: #fff;
}
  
  
.header .login-btn {
    border: none;
    background-color: #fff;
}

.header .meeting-topic {
    color: #333333;
    font-size: 16px;
    font-weight: bold;
}

.header .menu-box {
    background-color: #fff;
}

.header .navbar-default {
    background-color: #fff;
}

.header .custom-active {
    background-color: #fff;
    color: #0f519d!important;
    text-decoration: underline;
}
.header .navbar-nav{
    font-weight: 1000;
}