/* 页眉导航栏 */
.navbar {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.8rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.navbar .logo h1 {
    color: rgb(245, 245, 245);
    font-size: 18px;
    font-weight: bold;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 300px;
}

.navbar-links {
    display: flex;
    justify-content: center;
    flex: 1;
    margin: 0 20px;
}

.navbar-links a {
    color: rgb(235, 235, 235);
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    transition: color 0.3s;
}

.navbar-links a:hover {
    color: #f1c40f;
}

.navbar .avatar img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid white;
}



/* 下拉浮框 基础定位 */
.dropdown {
    position: relative;
    display: inline-block;
}

/* 下拉浮框 内容样式（默认隐藏） */
.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: white;
    min-width: 160px;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    z-index: 1;
    padding: 8px 0;
    font-size: 14px;
}

/* 下拉浮框 链接样式 */
.dropdown-content a {
    color: #4b5563;
    text-decoration: none;
    padding: 8px 12px;
    display: block;
    transition: background-color 0.3s;
}

.dropdown-content a:hover {
    background-color: #f3f4f6;
}

/* 下拉浮框  hover 显示 */
.dropdown:hover .dropdown-content {
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .navbar-links {
        margin: 0;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .navbar-links a {
        margin: 0 0.75rem;
        font-size: 16px;
    }
    
    .navbar .logo h1 {
        font-size: 16px;
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .navbar .logo h1 {
        font-size: 14px;
        max-width: 200px;
    }
    
    .navbar-links a {
        margin: 0 0.5rem;
        font-size: 14px;
    }
}