/* 响应式设计 - 移动端适配 */

/* 平板和手机 */
@media (max-width: 768px) {
    /* 通用调整 */
    .container {
        padding: 0 15px;
    }
    
    .page-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    /* 导航响应式 */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* 产品卡片网格响应式 */
    .products-card-grid,
    .advantages-grid,
    .scenario-cards,
    .full-solution-list,
    .duty-policy-list,
    .duty-benefits-grid,
    .solution-feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-card-item,
    .advantage-item,
    .scenario-card,
    .solution-category {
        margin-bottom: 20px;
    }
    
    .duty-system-card {
        grid-column: 1;
    }
    
    /* 远程值班系统详情响应式 */
    .duty-system-details {
        padding: 40px 0;
    }
    
    .duty-detail-card {
        padding: 25px;
    }
    
    /* 过滤标签响应式 */
    .filter-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-tab {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    /* 页脚响应式 */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-info li {
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* 选项卡响应式 */
    .tabs-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    /* 产品卡片内部调整 */
    .product-card-header,
    .product-card-content,
    .product-card-footer {
        padding: 20px;
    }
    
    .advantage-item,
    .scenario-card,
    .solution-category {
        padding: 20px;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .page-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* 产品卡片内部调整 */
    .product-card-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .product-card-header h3 {
        font-size: 1.2rem;
    }
    
    .product-card-category {
        font-size: 0.7rem;
    }
    
    .product-card-description {
        font-size: 0.9rem;
    }
    
    /* 优势卡片调整 */
    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .advantage-item h3 {
        font-size: 1.2rem;
    }
    
    /* 场景卡片调整 */
    .scenario-header h3 {
        font-size: 1.1rem;
    }
    
    /* 远程值班系统调整 */
    .duty-detail-card h3 {
        font-size: 1.5rem;
    }
    
    .duty-detail-section h4 {
        font-size: 1.1rem;
    }
    
    .duty-benefit-item i {
        font-size: 2rem;
    }
    
    .duty-benefit-item h5 {
        font-size: 1.1rem;
    }
}

/* 超小手机 */
@media (max-width: 360px) {
    .page-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .logo-text h1 {
        font-size: 1.2rem;
    }
    
    .tagline {
        font-size: 0.8rem;
    }
    
    .product-card-cta {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}