/* ========== 响应式样式文件 responsive.css ========== */

/* ========== 平板端 (768px - 1199px) ========== */

@media (max-width: 1199px) {
    .container,
    .wrap {
        max-width: 960px;
    }
    
    .supplier-list {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .category-list {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .company-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-list-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .news-list-container {
        grid-template-columns: 1fr;
    }
    
    .detail-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .banner h1 {
        font-size: 40px;
    }
    
    .banner .desc {
        font-size: 18px;
    }
    
    .nav {
        font-size: 13px;
        gap: 4px;
    }
    
    .nav a {
        padding: 7px 12px;
        font-size: 13px;
    }
}

/* ========== 移动端 (<768px) ========== */

@media (max-width: 767px) {
    .container,
    .wrap {
        max-width: 100%;
        padding: 0 15px;
    }
    
    body {
        min-width: 320px;
    }
    
    /* ========== 页头响应式 ========== */
    
    .top-bar {
        display: none;
    }
    
    .header .container {
        height: 60px;
    }
    
    .logo a {
        font-size: 22px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .nav {
        font-size: 12px;
        gap: 3px;
    }
    
    .nav a {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-nav {
        display: block;
    }
    
    /* ========== Banner响应式 ========== */
    
    .banner {
        padding: 50px 0;
    }
    
    .banner h1 {
        font-size: 28px;
    }
    
    .banner .desc {
        font-size: 16px;
        margin-bottom: 25px;
    }
    
    .banner-search {
        flex-direction: column;
        border-radius: 8px;
    }
    
    .banner-search input {
        border-radius: 8px 8px 0 0;
        padding: 12px 15px;
    }
    
    .banner-search button {
        border-radius: 0 0 8px 8px;
        padding: 12px;
    }
    
    /* ========== 供应商响应式 ========== */
    
    .supplier-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .supplier-item img {
        height: 100px;
    }
    
    .supplier-item .info {
        padding: 10px;
    }
    
    .supplier-item h3 {
        font-size: 13px;
        margin-bottom: 8px;
    }
    
    .supplier-item .phone,
    .supplier-item .address {
        font-size: 11px;
    }
    
    /* ========== 分类导航响应式 ========== */
    
    .category-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .category-item {
        padding: 12px;
    }
    
    .category-item a {
        font-size: 13px;
    }
    
    /* ========== 轮播响应式 ========== */
    
    .slider-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .slider-side {
        flex: 1;
    }
    
    .slider-side img {
        height: 150px;
    }
    
    .slider-center {
        flex: 1;
        order: -1;
    }
    
    .slider-center img {
        height: 180px;
    }
    
    .slider-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    
    .slider-btn.prev {
        left: 5px;
    }
    
    .slider-btn.next {
        right: 5px;
    }
    
    .slider-dots {
        bottom: 10px;
        gap: 8px;
    }
    
    .slider-dot {
        width: 10px;
        height: 10px;
    }
    
    /* ========== 企业网格响应式 ========== */
    
    .company-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .company-card img {
        height: 160px;
    }
    
    .company-card .info {
        padding: 12px;
    }
    
    .company-card h3 {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .company-card .detail {
        font-size: 12px;
        margin-bottom: 5px;
    }
    
    .company-card .detail i {
        font-size: 11px;
    }
    
    .company-card .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    /* ========== 新闻区块响应式 ========== */
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .news-column {
        padding: 15px;
    }
    
    .news-list .item {
        padding-bottom: 12px;
    }
    
    .news-list .number {
        width: 20px;
        height: 20px;
        line-height: 20px;
        font-size: 11px;
        margin-right: 8px;
    }
    
    .news-list a {
        font-size: 13px;
    }
    
    /* ========== 列表页响应式 ========== */
    
    .company-list-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .company-list-item .img-box {
        height: 120px;
    }
    
    .company-list-item .info {
        padding: 10px;
    }
    
    .company-list-item h3 {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .company-list-item .product {
        font-size: 12px;
    }
    
    /* ========== 新闻列表页响应式 ========== */
    
    .news-main-item {
        flex-direction: column;
    }
    
    .news-main-item .img-box {
        height: 160px;
        margin-bottom: 12px;
    }
    
    .news-main-item .info {
        padding-left: 0;
    }
    
    .sidebar-company-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .sidebar-company-item img {
        height: 100px;
    }
    
    .sidebar-company-item .info {
        padding: 10px;
    }
    
    .sidebar-company-item h4 {
        font-size: 13px;
        margin-bottom: 6px;
    }
    
    .sidebar-company-item .product {
        font-size: 11px;
    }
    
    /* ========== 详情页响应式 ========== */
    
    .company-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .company-logo {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }
    
    .company-basic h1 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .company-basic p {
        font-size: 13px;
        margin-bottom: 8px;
    }
    
    .company-basic strong {
        font-size: 14px;
    }
    
    .company-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .company-actions .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .image-gallery .image-item {
        height: 150px;
    }
    
    .product-list {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .product-item img {
        height: 120px;
    }
    
    .map-container {
        height: 250px;
    }
    
    /* ========== Tab响应式 ========== */
    
    .tab-header {
        overflow-x: auto;
        white-space: nowrap;
        gap: 5px;
    }
    
    .tab-item {
        flex-shrink: 0;
        padding: 10px 15px;
        font-size: 13px;
    }
    
    .tab-content {
        padding: 15px;
    }
    
    /* ========== 新闻内容页响应式 ========== */
    
    .news-header h1 {
        font-size: 24px;
    }
    
    .news-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .news-content {
        padding: 25px;
    }
    
    .news-body {
        font-size: 15px;
    }
    
    /* ========== 页脚响应式 ========== */
    
    .footer {
        padding: 30px 0 20px;
    }
    
    .footer .container {
        gap: 20px;
    }
    
    .footer-col {
        min-width: 100%;
        margin-bottom: 20px;
    }
    
    .footer-col h3 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-links li,
    .contact-info li {
        margin-bottom: 10px;
        font-size: 13px;
    }
    
    .footer-links a {
        font-size: 13px;
    }
    
    .contact-info li {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .contact-info li i {
        margin-right: 0;
        margin-bottom: 3px;
        font-size: 16px;
    }
    
    .contact-info li strong {
        font-size: 13px;
    }
    
    .qrcode-box img {
        width: 100px;
        height: 100px;
    }
    
    .qrcode-box p {
        font-size: 12px;
    }
    
    .friend-links {
        padding: 15px 0;
    }
    
    .friend-links h3 {
        font-size: 14px;
        margin-bottom: 10px;
    }
    
    .friend-links-list a {
        font-size: 13px;
    }
    
    .copyright {
        padding: 15px 0;
    }
    
    .copyright p {
        font-size: 12px;
        margin: 3px 0;
    }
    
    /* ========== 广告响应式 ========== */
    
    .ad-float {
        display: none;
    }
    
    .ad-popup-content {
        max-width: 95%;
    }
    
    /* ========== 回到顶部响应式 ========== */
    
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 30px;
        right: 20px;
    }
    
    /* ========== 按钮响应式 ========== */
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    /* ========== 分页响应式 ========== */
    
    .pagination a,
    .pagination span {
        min-width: 32px;
        height: 32px;
        line-height: 30px;
        margin: 0 3px;
        font-size: 13px;
    }
}

/* ========== 小屏移动端 (<480px) ========== */

@media (max-width: 479px) {
    .container,
    .wrap {
        padding: 0 10px;
    }
    
    .banner h1 {
        font-size: 24px;
    }
    
    .banner .desc {
        font-size: 14px;
    }
    
    .supplier-list {
        grid-template-columns: 1fr;
    }
    
    .category-list {
        grid-template-columns: 1fr;
    }
    
    .company-list-grid {
        grid-template-columns: 1fr;
    }
    
    .news-main-item .img-box {
        height: 180px;
    }
    
    .sidebar-company-card {
        grid-template-columns: 1fr;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
    
    .tab-content {
        padding: 20px;
    }
    
    .news-content {
        padding: 20px;
    }
    
    .back-to-top {
        width: 36px;
        height: 36px;
        bottom: 20px;
        right: 15px;
    }
}

/* ========== 响应式样式结束 ========== */