/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero-features {
        flex-direction: column;
    }
    
    .hero-feature {
        margin: 20px 0;
    }
    
    .culture-grid,
    .projects-content,
    .gallery-showcase,
    .partners-grid,
    .topics-preview,
    .footer-content,
    .features-grid,
    .topic-list {
        grid-template-columns: 1fr;
    }
    
    .gallery-showcase {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    /* 文化特色区响应式 */
    .feature-icon {
        width: 100px;
        height: 100px;
    }
    
    .feature-card {
        padding: 25px 20px;
    }
    
    /* 专题动态响应式 */
    .topic-item {
        flex-direction: column;
    }
    
    .topic-item img {
        width: 100%;
        height: 180px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .gallery-showcase {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 作品展示响应式 */
    .featured-gallery {
        flex-direction: column;
    }
    
    .featured-item.main img {
        height: 250px;
    }
    
    .category-grid,
    .latest-grid {
        grid-template-columns: 1fr;
    }
    
    /* 项目展示响应式 */
    .timeline-line {
        flex-direction: column;
    }
    
    .timeline-line::before {
        display: none;
    }
    
    .timeline-node {
        margin-bottom: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .subpages-grid {
        grid-template-columns: 1fr;
    }
    
    /* 定制服务响应式 */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    /* 教育传承响应式 */
    .courses-grid,
    .trainers-grid {
        grid-template-columns: 1fr;
    }
    
    .trainer-avatar {
        width: 100px;
        height: 100px;
    }
    
    /* 专题动态响应式 */
    .topics-grid {
        grid-template-columns: 1fr;
    }
}