/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: #1a6bb3;
    color: white;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    background-color: #0d5a9d;
    transform: translateY(-2px);
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #1a6bb3;
    color: #1a6bb3;
}

.btn-outline:hover {
    background-color: #1a6bb3;
    color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title h2 {
    font-size: 32px;
    color: #1a6bb3;
    margin-bottom: 15px;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #1a6bb3;
    margin: 10px auto 0;
}

.section-title p {
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* 头部样式 */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: #1a6bb3;
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
}

.header-contact span {
    margin-right: 20px;
}

.header-main {
    padding: 15px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 90px;
    margin-right: 10px;
}

.logo-text h1 {
    font-size: 24px;
    color: #1a6bb3;
    line-height: 1.2;
}

.logo-text p {
    font-size: 14px;
    color: #666;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    list-style: none;
    margin-left: 30px;
    position: relative;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    padding: 5px 0;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #1a6bb3;
}

.nav-menu a.active {
    color: #1a6bb3;
    border-bottom: 2px solid #1a6bb3;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* 页面标题横幅 */
.page-banner {
    background: linear-gradient(rgba(26, 107, 179, 0.8), rgba(26, 107, 179, 0.8)), url('/static/images/yemian.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.page-banner h1 {
    font-size: 42px;
    margin-bottom: 20px;
}

.page-banner p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 20px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
}

.breadcrumb-item {
    margin-right: 10px;
    font-size: 14px;
    color: #666;
}

.breadcrumb-item:not(:last-child)::after {
    content: '>';
    margin-left: 10px;
}

.breadcrumb-item a:hover {
    color: #1a6bb3;
}

.breadcrumb-item.active {
    color: #1a6bb3;
    font-weight: 500;
}

/* 案例头部 */
.case-header {
    padding: 80px 0;
    background-color: white;
}

.case-header-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.case-info {
    flex: 1;
}

.case-category {
    display: inline-block;
    background-color: #e6f2ff;
    color: #1a6bb3;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 20px;
}

.case-title {
    font-size: 36px;
    color: #333;
    margin-bottom: 30px;
}

.case-meta {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.meta-item {
    display: flex;
    align-items: flex-start;
}

.meta-icon {
    width: 40px;
    height: 40px;
    background-color: #e6f2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: #1a6bb3;
    font-size: 18px;
}

.meta-text h4 {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.meta-text p {
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.case-summary {
    margin-bottom: 30px;
}

.case-summary h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.case-summary p {
    color: #555;
    line-height: 1.7;
}

.case-actions {
    display: flex;
    gap: 15px;
}

.case-image {
    flex: 1;
}

.case-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 案例概览 */
.case-overview {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.overview-card {
    background-color: white;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-10px);
}

.overview-icon {
    width: 80px;
    height: 80px;
    background-color: #e6f2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #1a6bb3;
    font-size: 30px;
}

.overview-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.overview-card p {
    color: #666;
    line-height: 1.6;
}

/* 挑战与解决方案 */
.challenge-solution {
    padding: 80px 0;
    background-color: white;
}

.challenge-solution-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.section-box {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    height: 100%;
}

.section-box h3 {
    font-size: 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.challenge-icon {
    color: #e74c3c;
    margin-right: 10px;
}

.solution-icon {
    color: #2ecc71;
    margin-right: 10px;
}

.problem-list, .solution-list {
    list-style: none;
}

.problem-list li, .solution-list li {
    padding: 10px 0;
    border-bottom: 1px solid #e9ecef;
    position: relative;
    padding-left: 20px;
}

.problem-list li:before {
    content: '•';
    color: #e74c3c;
    position: absolute;
    left: 0;
}

.solution-list li:before {
    content: '✓';
    color: #2ecc71;
    position: absolute;
    left: 0;
}

.problem-list li:last-child, .solution-list li:last-child {
    border-bottom: none;
}

/* 实施过程 */
.implementation {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #1a6bb3;
}

.timeline-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.timeline-marker {
    width: 100px;
    height: 100px;
    background-color: #1a6bb3;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    z-index: 1;
    flex-shrink: 0;
}

.timeline-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-left: 30px;
    flex: 1;
}

.timeline-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

/* 成果展示 */
.results {
    padding: 80px 0;
    background-color: white;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.result-card {
    background-color: #f8f9fa;
    padding: 40px 20px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.result-card:hover {
    transform: translateY(-10px);
}

.result-number {
    font-size: 48px;
    font-weight: bold;
    color: #1a6bb3;
    margin-bottom: 10px;
}

.result-text {
    font-size: 18px;
    color: #333;
}

.results-comparison {
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 8px;
}

.comparison-title {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    color: #333;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.comparison-table th {
    background-color: #e6f2ff;
    color: #1a6bb3;
    font-weight: 600;
}

.comparison-table tr:hover {
    background-color: #f1f8ff;
}

.improvement {
    color: #2ecc71;
    font-weight: 600;
}

/* 客户评价 */
.testimonial {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.testimonial-card {
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-text {
    font-size: 18px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 30px;
    font-style: italic;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    font-size: 60px;
    color: #e6f2ff;
    position: absolute;
    top: -20px;
    left: -10px;
    z-index: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #333;
}

.author-info p {
    color: #666;
}

/* 相关案例 */
.related-cases {
    padding: 80px 0;
    background-color: white;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.related-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.related-card:hover {
    transform: translateY(-10px);
}

.related-image {
    height: 200px;
    overflow: hidden;
}

.related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.related-card:hover .related-image img {
    transform: scale(1.1);
}

.related-content {
    padding: 25px;
}

.related-content h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.related-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.related-link {
    color: #1a6bb3;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.related-link i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.related-link:hover i {
    transform: translateX(5px);
}

/* 联系我们CTA */
.contact-cta {
    padding: 80px 0;
    background-color: #1a6bb3;
    color: white;
    text-align: center;
}

.contact-cta h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.contact-cta p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.contact-cta .btn {
    background-color: white;
    color: #1a6bb3;
}

.contact-cta .btn:hover {
    background-color: #f8f9fa;
}

/* 案例筛选 */
.case-filters {
    padding: 40px 0;
    background-color: white;
}

.filter-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.filter-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-category {
    padding: 8px 20px;
    background-color: #f8f9fa;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-category:hover {
    background-color: #e6f2ff;
    color: #1a6bb3;
}

.filter-category.active {
    background-color: #1a6bb3;
    color: white;
}

.filter-search {
    display: flex;
}

.search-input {
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    width: 250px;
}

.filter-search .btn {
    border-radius: 0 4px 4px 0;
}

/* 案例统计 */
.case-stats {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.stat-icon {
    width: 70px;
    height: 70px;
    background-color: #e6f2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #1a6bb3;
    font-size: 24px;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #1a6bb3;
    margin-bottom: 10px;
}

.stat-text {
    font-size: 16px;
    color: #666;
}

/* 案例列表 */
.case-list {
    padding: 80px 0;
    background-color: white;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
}

.case-image {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: rgba(26, 107, 179, 0.9);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
}

.case-content {
    padding: 25px;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.case-client {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: #666;
    font-size: 14px;
}

.case-client i {
    margin-right: 5px;
    color: #1a6bb3;
}

.case-description {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-results {
    margin-bottom: 20px;
}

.result-item {
    margin-bottom: 8px;
    font-size: 14px;
    color: #666;
}

.result-item strong {
    color: #1a6bb3;
}

.case-link {
    color: #1a6bb3;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.case-link i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.case-link:hover i {
    transform: translateX(5px);
}

/* 客户评价轮播 */
.testimonials {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-slides {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-slide {
    min-width: 100%;
}

.testimonial-nav {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    background-color: #ddd;
    border-radius: 50%;
    margin: 0 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.testimonial-dot.active {
    background-color: #1a6bb3;
}

/* 联系我们内容 */
.contact-content {
    padding: 80px 0;
    background-color: white;
}

.contact-container {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #1a6bb3;
}

.contact-info p {
    margin-bottom: 30px;
    color: #555;
    line-height: 1.7;
}

.contact-details {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: #e6f2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: #1a6bb3;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #333;
}

.contact-text p {
    margin-bottom: 0;
    color: #666;
}

.business-hours {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
}

.business-hours h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.hours-list li {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    color: #555;
}

.hours-list li:last-child {
    margin-bottom: 0;
}

.contact-form {
    flex: 1;
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-form h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #1a6bb3;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-control:focus {
    border-color: #1a6bb3;
    outline: none;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* 地图区域 */
.map-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.map-container {
    height: 450px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background-color: #e6f2ff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #1a6bb3;
}

.map-placeholder i {
    font-size: 60px;
    margin-bottom: 20px;
}

.map-placeholder p {
    font-size: 18px;
}

/* 常见问题 */
.faq-section {
    padding: 80px 0;
    background-color: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 20px;
    background-color: #f8f9fa;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background-color: #e6f2ff;
}

.faq-question h3 {
    font-size: 18px;
    color: #333;
    margin: 0;
}

.faq-question i {
    color: #1a6bb3;
    transition: transform 0.3s;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: white;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* 新闻详情 */
.news-detail {
    padding: 80px 0;
    background-color: white;
}

.news-container {
    display: flex;
    gap: 50px;
}

.news-main {
    flex: 2;
}

.news-header {
    margin-bottom: 40px;
}

.news-category {
    display: inline-block;
    background-color: #e6f2ff;
    color: #1a6bb3;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 0px;
}

.news-title {
    font-size: 36px;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.3;
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: #666;
}

.meta-item {
    display: flex;
    align-items: center;
}

.meta-item i {
    margin-right: 5px;
    color: #1a6bb3;
}

.news-featured-image {
    margin-bottom: 40px;
}

.news-featured-image img {
    width: 100%;
    border-radius: 8px;
}

.news-content {
    line-height: 1.8;
    color: #444;
    margin-bottom: 40px;
}

.news-content h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: #333;
}

.news-content h3 {
    font-size: 20px;
    margin: 25px 0 15px;
    color: #333;
}

.news-content p {
    margin-bottom: 15px;
}

.news-content ul, .news-content ol {
    margin-bottom: 15px;
    padding-left: 20px;
}

.news-content li {
    margin-bottom: 8px;
}

.news-image {
    margin: 25px 0;
}

.news-image img {
    width: 100%;
    border-radius: 8px;
}

.image-caption {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-top: 10px;
    font-style: italic;
}

blockquote {
    border-left: 4px solid #1a6bb3;
    padding-left: 20px;
    margin: 25px 0;
    font-style: italic;
    color: #555;
}

.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.news-tag {
    background-color: #f8f9fa;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    color: #666;
    transition: all 0.3s ease;
}

.news-tag:hover {
    background-color: #e6f2ff;
    color: #1a6bb3;
}

.news-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.news-share {
    display: flex;
    align-items: center;
}

.share-text {
    margin-right: 15px;
    color: #666;
}

.share-buttons {
    display: flex;
    gap: 10px;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: transform 0.3s ease;
}

.share-btn:hover {
    transform: translateY(-3px);
}

.share-wechat {
    background-color: #09bb07;
}

.share-weibo {
    background-color: #e6162d;
}

.share-qq {
    background-color: #12b7f5;
}

.share-link {
    background-color: #666;
}

.news-navigation {
    display: flex;
    justify-content: space-between;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-radius: 8px;
    transition: background-color 0.3s;
    max-width: 45%;
}

.nav-item:hover {
    background-color: #f8f9fa;
}

.nav-prev {
    text-align: left;
}

.nav-next {
    text-align: right;
    flex-direction: row-reverse;
}

.nav-icon {
    width: 40px;
    height: 40px;
    background-color: #e6f2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a6bb3;
    margin: 0 15px;
    flex-shrink: 0;
}

.nav-text h4 {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.nav-text p {
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

/* 新闻侧边栏 */
.news-sidebar {
    flex: 1;
}

.sidebar-widget {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.widget-title {
    font-size: 20px;
    margin-bottom: 20px;
    color: #333;
    position: relative;
    padding-bottom: 10px;
}

.widget-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: #1a6bb3;
}

.popular-news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.popular-news-item {
    display: flex;
    gap: 15px;
}

.popular-news-image {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.popular-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popular-news-title {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.popular-news-title a {
    color: #333;
    transition: color 0.3s;
}

.popular-news-title a:hover {
    color: #1a6bb3;
}

.popular-news-date {
    font-size: 14px;
    color: #666;
}

.categories-list {
    list-style: none;
}

.categories-list li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e9ecef;
}

.categories-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.categories-list a {
    display: flex;
    justify-content: space-between;
    color: #666;
    transition: color 0.3s;
}

.categories-list a:hover {
    color: #1a6bb3;
}

.category-count {
    background-color: #e6f2ff;
    color: #1a6bb3;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background-color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
    color: #666;
    transition: all 0.3s ease;
}

.tag:hover {
    background-color: #e6f2ff;
    color: #1a6bb3;
}

/* 新闻列表 */
.news-content {
    padding: 80px 0;
    background-color: white;
}

.news-filters {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.news-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.news-category {
    padding: 8px 20px;
    background-color: #f8f9fa;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.news-category:hover {
    background-color: #e6f2ff;
    color: #1a6bb3;
}

.news-category.active {
    background-color: #1a6bb3;
    color: white;
}

.news-search {
    display: flex;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 50px;
}

.news-item {
    display: flex;
    gap: 30px;
    padding: 10px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
}

.news-image {
    width: 200px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-info {
    flex: 1;
}

.news-meta {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    gap: 15px;
}

.news-category-tag {
    background-color: #e6f2ff;
    color: #1a6bb3;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.news-date {
    color: #666;
    font-size: 14px;
}

.news-date i {
    margin-right: 5px;
    color: #1a6bb3;
}

.news-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: #333;
}

.news-title a {
    transition: color 0.3s;
}

.news-title a:hover {
    color: #1a6bb3;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.news-link {
    color: #1a6bb3;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.news-link i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.news-link:hover i {
    transform: translateX(5px);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.pagination-list {
    display: flex;
    list-style: none;
    gap: 5px;
}

.pagination-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.pagination-item:hover, .pagination-item.active {
    background-color: #1a6bb3;
    color: white;
}
/* 分页容器样式 */
.pagination {
    margin: 30px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.pagination-list {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
}

/* 通用分页项样式 */
.pagination-list > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
}

/* 分页状态信息 */
.page-status {
    padding: 8px 12px;
    color: #666;
    font-size: 14px;
    margin-right: 12px;
    background: #f8f9fa;
    border-radius: 6px;
}

/* 分页链接基础样式 */
.pagination-list a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    color: #333;
    text-decoration: none;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

/* 链接悬停效果 */
.pagination-list a:hover {
    background: #f5f5f5;
    border-color: #d0d0d0;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 当前页码样式 */
.pagination-list .page-num-current {
    background: #007bff;
    color: white;
    border-color: #007bff;
    font-weight: 600;
}

.pagination-list .page-num-current:hover {
    background: #0056b3;
    border-color: #0056b3;
    transform: none;
    box-shadow: none;
}

/* 省略号样式 */
.pagination-list .page-numbar span.page-num {
    min-width: auto;
    border: none;
    background: transparent;
    color: #666;
    cursor: default;
    padding: 0 4px;
}

.pagination-list .page-numbar span.page-num:hover {
    background: transparent;
    transform: none;
    box-shadow: none;
}

/* 首页/尾页样式 */
.page-index a,
.page-last a {
    padding: 0 16px;
    background: #f8f9fa;
    font-weight: 600;
}

/* 上一页/下一页样式 */
.page-pre a,
.page-next a {
    padding: 0 16px;
}


/* 相关新闻 */
.related-news {
    padding: 80px 0;
    background-color: #f8f9fa;
}

/* 底部样式 */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: #1a6bb3;
}

.footer-links li {
    list-style: none;
    margin-bottom: 10px;
}

.footer-links a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #1a6bb3;
}

.footer-contact li {
    list-style: none;
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.footer-contact i {
    margin-right: 10px;
    color: #1a6bb3;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    font-size: 14px;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .case-header-content,
    .contact-container,
    .news-container {
        flex-direction: column;
    }
    
    .case-image,
    .news-image {
        width: 100%;
        margin-top: 30px;
    }
    
    .news-item {
        flex-direction: column;
    }
    
    .news-image {
        width: 100%;
        height: 250px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
        text-align: center;
        padding: 10px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .page-banner h1 {
        font-size: 32px;
    }
    
    .page-banner p {
        font-size: 16px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .case-title {
        font-size: 28px;
    }
    
    .case-meta {
        flex-direction: column;
        gap: 20px;
    }
    
    .case-actions {
        flex-direction: column;
    }
    
    .challenge-solution-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-marker {
        width: 60px;
        height: 60px;
        font-size: 18px;
    }
    
    .timeline-content {
        margin-left: 20px;
    }
    
    .filter-container,
    .news-filters {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .search-input {
        width: 100%;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .news-actions {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .news-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-item {
        max-width: 100%;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 10px;
    }
    
    .header-top .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-contact span {
        display: block;
        margin-bottom: 5px;
    }
    
    .map-container {
        height: 300px;
    }
    
    .results-comparison {
        padding: 20px;
        overflow-x: auto;
    }
    
    .comparison-table {
        min-width: 500px;
    }
    
    .news-title {
        font-size: 20px;
    }
    
    .pagination-item {
        padding: 8px 12px;
    }
}