/* ========================================
   响应式样式补充
   适配各种设备屏幕尺寸
   ======================================== */

/* 大屏幕（桌面） */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
}

/* 中等屏幕（平板横屏/小桌面） */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    /* 导航栏 */
    .nav-menu {
        gap: 20px;
    }
    
    /* 网格布局 */
    .categories-grid,
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 首页轮播 */
    .hero-slider {
        height: 500px;
    }
    
    .slide-content h2 {
        font-size: 40px;
    }
    
    /* Banner内容 */
    .banner-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .case-categories {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    /* 合作伙伴 */
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* 产品详情 */
    .product-overview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 解决方案 */
    .solution-content {
        padding: 40px;
    }
    
    /* 新闻资讯 */
    .featured-card {
        grid-template-columns: 1fr;
    }
    
    .featured-image {
        height: 320px;
    }
    
    .featured-content {
        padding: 40px;
    }
}

/* 小屏幕（平板竖屏） */
@media (max-width: 768px) {
    /* 全局 */
    .section {
        padding: 60px 0;
    }
    
    /* 导航栏 */
    .top-bar {
        padding: 10px 0;
    }
    
    .top-bar .container {
        flex-direction: column;
        gap: 8px;
    }
    
    .top-info span {
        margin-right: 15px;
        font-size: 13px;
    }
    
    .nav-menu {
        gap: 15px;
        font-size: 14px;
    }
    
    /* 页面Hero */
    .page-hero {
        padding: 60px 0 40px;
    }
    
    .page-hero h1 {
        font-size: 32px;
    }
    
    .page-hero p {
        font-size: 16px;
    }
    
    /* 轮播图 */
    .hero-slider {
        height: 400px;
    }
    
    .slide-content h2 {
        font-size: 32px;
    }
    
    .slide-content p {
        font-size: 18px;
    }
    
    /* 区块标题 */
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    /* 网格布局 - 全部单列 */
    .categories-grid,
    .advantages-grid,
    .cases-grid,
    .news-grid,
    .product-grid,
    .features-grid,
    .industry-quick-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 统计数据 */
    .stats-grid,
    .product-overview,
    .partnership-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    /* 合作伙伴 */
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .partners-logos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Banner区域 */
    .more-cases-banner {
        padding: 35px 25px;
    }
    
    .banner-left h3 {
        font-size: 26px;
    }
    
    .banner-left > p {
        font-size: 15px;
    }
    
    .case-categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .category-count {
        font-size: 24px;
    }
    
    .banner-actions {
        flex-direction: row;
        gap: 15px;
    }
    
    .banner-actions .btn-primary,
    .banner-actions .btn-secondary {
        padding: 12px 25px;
        font-size: 15px;
    }
    
    /* CTA区域 */
    .cta-section h2 {
        font-size: 30px;
    }
    
    .cta-section p {
        font-size: 16px;
    }
    
    .cta-buttons {
        gap: 15px;
    }
    
    /* 关于我们 */
    .about-content h2 {
        font-size: 28px;
    }
    
    .about-content h3 {
        font-size: 22px;
    }
    
    .about-content p,
    .about-content ul li {
        font-size: 15px;
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline-item {
        padding-left: 30px;
    }
    
    /* 产品中心 */
    .category-header h2 {
        font-size: 28px;
    }
    
    .product-card .product-image {
        height: 200px;
    }
    
    .product-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    /* 解决方案 */
    .solution-image {
        height: 280px;
    }
    
    .solution-content {
        padding: 30px 25px;
    }
    
    .solution-content h2 {
        font-size: 26px;
    }
    
    .solution-details h3 {
        font-size: 20px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    /* 案例展示 */
    .filter-tabs {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 20px;
        font-size: 14px;
    }
    
    .case-image {
        height: 220px;
    }
    
    .case-stats {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    /* 新闻资讯 */
    .news-section {
        padding: 60px 0;
    }
    
    .news-list {
        padding: 40px 0;
    }
    
    /* 新闻详情页 */
    .news-detail {
        padding: 40px 0;
    }
    
    .news-header h1 {
        font-size: 28px;
    }
    
    .news-content h3 {
        font-size: 20px;
    }
    
    .news-content {
        font-size: 15px;
    }
    
    .news-nav {
        flex-wrap: wrap;
        padding: 20px;
    }
    
    .news-nav-prev,
    .news-nav-next {
        flex: 1;
        min-width: 120px;
    }
    
    .news-nav-list {
        flex: 1;
        min-width: 120px;
    }
    
    /* 新闻列表 */
    .news-list .news-card {
        grid-template-columns: 1fr;
    }
    
    .news-list .news-image {
        height: 250px;
    }
    
    .news-list .news-content h3 {
        font-size: 18px;
    }
    
    .featured-image {
        height: 250px;
    }
    
    .featured-content {
        padding: 30px 25px;
    }
    
    .featured-content h2 {
        font-size: 24px;
    }
    
    .featured-content p {
        font-size: 15px;
    }
    
    .news-image {
        height: 180px;
    }
    
    /* 联系我们 */
    .contact-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-item {
        padding: 30px 25px;
    }
    
    .contact-form {
        padding: 35px 25px;
    }
    
    .contact-form h2 {
        font-size: 24px;
    }
    
    .branches-grid {
        grid-template-columns: 1fr;
    }
    
    /* 页脚 */
    .footer {
        padding: 50px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* 超小屏幕（手机） */
@media (max-width: 480px) {
    /* 全局 */
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    /* 导航栏 */
    .navbar .container {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    .logo a {
        font-size: 20px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .nav-menu a {
        font-size: 13px;
        padding: 6px 3px;
    }
    
    /* 页面Hero */
    .page-hero {
        padding: 50px 0 35px;
    }
    
    .page-hero h1 {
        font-size: 26px;
        margin-bottom: 12px;
    }
    
    .page-hero p {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .breadcrumb {
        font-size: 13px;
    }
    
    /* 轮播图 */
    .hero-slider {
        height: 350px;
    }
    
    .slide-content {
        width: 90%;
    }
    
    .slide-content h2 {
        font-size: 24px;
        margin-bottom: 15px;
    }
    
    .slide-content p {
        font-size: 15px;
        margin-bottom: 20px;
    }
    
    .slider-controls button {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
    
    .slider-controls .prev {
        left: 10px;
    }
    
    .slider-controls .next {
        right: 10px;
    }
    
    /* 区块标题 */
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .section-header p {
        font-size: 14px;
    }
    
    /* 按钮 */
    .btn {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .btn-large {
        padding: 12px 30px;
        font-size: 16px;
    }
    
    /* 网格布局 */
    .stats-grid,
    .product-overview,
    .partnership-stats {
        grid-template-columns: 1fr;
        padding: 25px;
        gap: 20px;
    }
    
    .overview-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .overview-icon {
        font-size: 32px;
    }
    
    .overview-info h4 {
        font-size: 20px;
    }
    
    /* 合作伙伴 */
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-category-title {
        font-size: 20px;
    }
    
    .partner-card {
        padding: 20px;
    }
    
    /* Banner区域 */
    .more-cases-banner {
        padding: 25px 20px;
    }
    
    .banner-left h3 {
        font-size: 22px;
        margin-bottom: 12px;
    }
    
    .banner-left > p {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .case-highlights li {
        font-size: 14px;
        padding: 8px 0;
    }
    
    .case-categories {
        gap: 12px;
    }
    
    .case-category-item {
        padding: 15px;
    }
    
    .category-count {
        font-size: 20px;
        margin-bottom: 5px;
    }
    
    .category-name {
        font-size: 13px;
    }
    
    .banner-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .banner-actions .btn-primary,
    .banner-actions .btn-secondary {
        width: 100%;
        padding: 12px 20px;
    }
    
    /* CTA区域 */
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-section h2 {
        font-size: 26px;
        margin-bottom: 15px;
    }
    
    .cta-section p {
        font-size: 15px;
        margin-bottom: 30px;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-cta,
    .btn-cta-outline {
        width: 100%;
        padding: 12px 30px;
        font-size: 16px;
    }
    
    /* 关于我们 */
    .about-intro {
        padding: 60px 0;
    }
    
    .about-content h2 {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .about-content h3 {
        font-size: 20px;
        margin: 30px 0 15px;
    }
    
    .about-content p,
    .about-content ul li {
        font-size: 14px;
    }
    
    .timeline {
        padding-left: 25px;
    }
    
    .timeline::before {
        left: 6px;
    }
    
    .timeline-item {
        padding-left: 25px;
        margin-bottom: 25px;
    }
    
    .timeline-item::before {
        left: -26px;
        width: 14px;
        height: 14px;
    }
    
    /* 产品中心 */
    .products-section {
        padding: 60px 0;
    }
    
    .product-category {
        margin-bottom: 60px;
    }
    
    .category-header {
        margin-bottom: 35px;
    }
    
    .category-header h2 {
        font-size: 24px;
    }
    
    .category-header p {
        font-size: 14px;
    }
    
    .product-card .product-image {
        height: 180px;
    }
    
    .product-info {
        padding: 20px;
    }
    
    .product-info h3 {
        font-size: 20px;
    }
    
    .product-desc {
        font-size: 14px;
    }
    
    /* 解决方案 */
    .solutions-section {
        padding: 60px 0;
    }
    
    .solution-item {
        margin-bottom: 40px;
    }
    
    .solution-image {
        height: 220px;
    }
    
    .solution-content {
        padding: 25px 20px;
    }
    
    .solution-content h2 {
        font-size: 24px;
    }
    
    .solution-subtitle {
        font-size: 14px;
        margin-bottom: 25px;
    }
    
    .solution-details h3 {
        font-size: 18px;
        margin: 25px 0 15px;
        padding-left: 12px;
    }
    
    .solution-details ul li {
        font-size: 14px;
        padding: 10px 0;
    }
    
    /* 案例展示 */
    .cases-section {
        padding: 60px 0;
    }
    
    .cases-filter {
        padding: 20px 0;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .case-card .case-image {
        height: 200px;
    }
    
    .case-info {
        padding: 20px;
    }
    
    .case-info h3 {
        font-size: 16px;
    }
    
    .case-stats {
        flex-direction: column;
        gap: 12px;
    }
    
    .stat-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    
    .stat-number {
        font-size: 20px;
    }
    
    /* 新闻资讯 */
    .news-section {
        padding: 60px 0;
    }
    
    .news-list {
        padding: 30px 0;
    }
    
    /* 新闻详情页 */
    .news-detail {
        padding: 30px 0;
    }
    
    .news-header h1 {
        font-size: 24px;
    }
    
    .news-header {
        padding-bottom: 20px;
    }
    
    .news-content h3 {
        font-size: 18px;
        margin: 25px 0 15px;
        padding-left: 12px;
    }
    
    .news-content {
        font-size: 14px;
        line-height: 1.8;
    }
    
    .news-nav {
        flex-direction: column;
        padding: 20px 15px;
        gap: 10px;
    }
    
    .news-nav a {
        width: 100%;
        padding: 10px 20px;
        font-size: 14px;
    }
    
    /* 新闻列表 */
    .news-list .news-card {
        grid-template-columns: 1fr;
    }
    
    .news-list .news-image {
        height: 220px;
    }
    
    .news-list .news-content {
        padding: 20px;
    }
    
    .news-list .news-content h3 {
        font-size: 16px;
    }
    
    .news-summary {
        font-size: 14px;
    }
    
    .news-featured {
        margin-bottom: 40px;
    }
    
    .featured-image {
        height: 200px;
    }
    
    .featured-content {
        padding: 25px 20px;
    }
    
    .featured-content h2 {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .featured-content p {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .news-card .news-image {
        height: 160px;
    }
    
    .news-content {
        padding: 20px;
    }
    
    .news-content h3 {
        font-size: 16px;
    }
    
    .news-content p {
        font-size: 13px;
    }
    
    .news-meta {
        font-size: 13px;
        gap: 12px;
    }
    
    .read-more {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .pagination {
        gap: 8px;
        margin-top: 40px;
    }
    
    .pagination a,
    .pagination span {
        padding: 8px 12px;
        font-size: 14px;
    }
    
    .read-more {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    /* 联系我们 */
    .contact-section {
        padding: 60px 0;
    }
    
    .contact-info {
        margin-bottom: 40px;
    }
    
    .contact-item {
        padding: 25px 20px;
    }
    
    .contact-item h3 {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .contact-item p {
        font-size: 14px;
    }
    
    .contact-item p:first-of-type {
        font-size: 18px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .contact-form h2 {
        font-size: 22px;
        margin-bottom: 25px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .form-group textarea {
        min-height: 120px;
    }
    
    .submit-btn {
        padding: 12px 25px;
        font-size: 15px;
    }
    
    .map-container {
        height: 300px;
        font-size: 16px;
    }
    
    .branch-card {
        padding: 25px 20px;
    }
    
    .branch-card h4 {
        font-size: 18px;
    }
    
    .branch-card p {
        font-size: 13px;
    }
    
    /* 页脚 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-section h3 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-section p,
    .footer-section ul li {
        font-size: 13px;
    }
    
    .footer-bottom p {
        font-size: 12px;
    }
}