/* 响应式设计 */
@media (max-width: 992px) {
    .header .container {
        flex-wrap: wrap;
    }
    
    .logo {
        order: 1;
    }
    
    .menu-toggle {
        order: 2;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 20px;
        cursor: pointer;
    }
    
    .menu-toggle span {
        display: block;
        height: 3px;
        width: 100%;
        background: #333;
        transition: all 0.3s ease;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .main-nav {
        order: 4;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .main-nav.active {
        max-height: 300px;
        padding: 20px 0;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav ul li {
        margin: 10px 0;
    }
    
    .user-actions {
        order: 3;
        margin-left: auto;
    }
    
    .search-row {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .search-section {
        padding: 100px 0 40px;
    }
    
    .search-box h2 {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .services-grid, .footer-content {
        grid-template-columns: 1fr;
    }
}