/* 平板设备 */
@media screen and (max-width: 768px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

/* 移动设备 */
@media screen and (max-width: 480px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
    
    .slide-content h2 {
        font-size: 1.5rem;
    }
}

/* 页脚响应式样式 */
@media screen and (max-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media screen and (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer {
        padding: 2rem 1rem 1rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .spec-item {
        margin-bottom: 1rem;
    }
}