/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 20px;
    color: #2c3e50;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 15px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 18px;
    transition: color 0.3s;
    padding: 5px 10px;
    border-radius: 4px;
}

nav ul li a:hover,
nav ul li a.active {
    color: #e74c3c;
    background-color: #fdf2f1;
}

/* 主视觉区域 */
.hero {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-block;
    background-color: #fff;
    color: #e74c3c;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    border: 2px solid #fff;
}

.btn:hover {
    background-color: transparent;
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: #e74c3c;
    border: 2px solid #e74c3c;
}

.btn-outline:hover {
    background-color: #e74c3c;
    color: #fff;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 2rem;
}

/* 页面内容 */
.page-content {
    padding: 50px 0;
}

/* 首页介绍部分 */
.intro {
    padding: 60px 0;
    background-color: #fff;
}

.intro h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.intro-text {
    flex: 1;
}

.intro-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.intro-image {
    flex: 1;
    text-align: center;
}

.placeholder-icon {
    font-size: 5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    display: inline-block;
}

.placeholder-icon.large {
    font-size: 8rem;
    padding: 50px;
}

/* 首页新闻部分 */
.news {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.news h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.news-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.date {
    color: #e74c3c;
    font-weight: bold;
    margin-bottom: 15px;
    display: block;
}

/* 首页服务部分 */
.services {
    padding: 60px 0;
    background-color: #fff;
}

.services h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 10px;
    background-color: #f8f9fa;
    transition: all 0.3s;
}

.service-item:hover {
    background-color: #e74c3c;
    color: #fff;
    transform: scale(1.05);
}

.service-item .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-item h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.service-item:hover h3 {
    color: #fff;
}

/* 首页案例部分 */
.cases {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.cases h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
}

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

.case-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.case-item .case-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* 文本居中 */
.text-center {
    text-align: center;
}

/* 页脚样式 */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
    float: left;
    margin-right: 20px;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #e74c3c;
}

.footer-section p {
    margin-bottom: 10px;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
}

.footer-section a:hover {
    color: #e74c3c;
}

/* 公司简介页面样式 */
.about-intro {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.about-text {
    flex: 2;
}

.about-text h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-image {
    flex: 1;
    text-align: center;
}

.history {
    margin-bottom: 50px;
}

.history h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.timeline {
    position: relative;
    padding-left: 30px;
    border-left: 2px solid #e74c3c;
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
}

.timeline-year {
    position: absolute;
    left: -40px;
    top: 0;
    background-color: #e74c3c;
    color: #fff;
    width: 60px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    font-weight: bold;
}

.timeline-content h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.team {
    margin-bottom: 30px;
}

.team h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 10px;
}

.team-member .member-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* 产品中心页面样式 */
.product-categories {
    margin-bottom: 50px;
}

.product-categories h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.tab {
    padding: 10px 20px;
    background-color: #f8f9fa;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab.active,
.tab:hover {
    background-color: #e74c3c;
    color: #fff;
}

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

.product-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.product-image {
    padding: 30px;
    text-align: center;
    background-color: #f8f9fa;
}

.product-info {
    padding: 25px;
}

.product-info h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.price {
    color: #e74c3c;
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 15px;
}

.features {
    margin-top: 50px;
}

.features h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 10px;
}

.feature-item .feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

/* 新闻资讯页面样式 */
.news-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 8px 20px;
    background-color: #f8f9fa;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn.active,
.filter-btn:hover {
    background-color: #3498db;
    color: #fff;
}

.news-articles {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.news-article {
    display: flex;
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.article-image {
    flex: 1;
    padding: 30px;
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-content {
    flex: 2;
    padding: 30px;
}

.article-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.category {
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: bold;
}

.category.company {
    background-color: #e74c3c;
    color: #fff;
}

.category.industry {
    background-color: #3498db;
    color: #fff;
}

.category.events {
    background-color: #2ecc71;
    color: #fff;
}

.article-content h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.read-more {
    display: inline-block;
    margin-top: 15px;
    color: #e74c3c;
    text-decoration: none;
    font-weight: bold;
}

.read-more:hover {
    text-decoration: underline;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.page-link {
    display: block;
    padding: 8px 15px;
    background-color: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 5px;
}

.page-link.active,
.page-link:hover {
    background-color: #e74c3c;
    color: #fff;
}

/* 服务中心页面样式 */
.services-intro {
    text-align: center;
    margin-bottom: 50px;
}

.services-intro h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.services-intro p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 20px;
}

.service-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    text-align: center;
}

.service-card ul {
    list-style: none;
    margin-top: 20px;
}

.service-card ul li {
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
}

.service-card ul li:last-child {
    border-bottom: none;
}

.service-process {
    margin: 50px 0;
}

.service-process h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    display: flex;
    gap: 20px;
}

.step-number {
    background-color: #e74c3c;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.download-section {
    margin-top: 50px;
}

.download-section h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

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

.download-item {
    display: flex;
    gap: 20px;
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.download-icon {
    font-size: 2.5rem;
}

.download-info h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.btn-download {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 20px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-download:hover {
    background-color: #2980b9;
}

/* 知识库页面样式 */
.knowledge-search {
    display: flex;
    max-width: 600px;
    margin: 0 auto 50px;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #ddd;
    border-radius: 30px 0 0 30px;
    outline: none;
}

.search-input:focus {
    border-color: #3498db;
}

.search-btn {
    padding: 12px 25px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-btn:hover {
    background-color: #2980b9;
}

.knowledge-categories {
    margin-bottom: 50px;
}

.knowledge-categories h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.category-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.category-card:hover {
    transform: translateY(-5px);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.category-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.popular-articles {
    margin-bottom: 50px;
}

.popular-articles h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.article-item {
    display: flex;
    gap: 20px;
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.article-icon {
    font-size: 2.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.article-info {
    flex: 1;
}

.article-info h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.meta .category {
    background-color: #3498db;
    color: #fff;
}

.meta .views {
    color: #7f8c8d;
}

.faq-section {
    margin-top: 50px;
}

.faq-section h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.faq-item {
    background-color: #fff;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
}

.faq-question h4 {
    color: #2c3e50;
    margin: 0;
}

.toggle {
    font-size: 1.5rem;
    font-weight: bold;
    color: #e74c3c;
}

.faq-answer {
    padding: 0 25px 25px;
    display: none;
    border-top: 1px solid #eee;
}

.faq-item.active .faq-answer {
    display: block;
}

/* 联系我们页面样式 */
.contact-info {
    margin-bottom: 50px;
}

.contact-info h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.5rem;
    text-align: center;
}

.contact-info p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-card {
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.contact-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.departments {
    margin-bottom: 50px;
}

.departments h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.department-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.department-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.map-section {
    text-align: center;
}

.map-section h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.map-placeholder {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 50px;
    margin-bottom: 20px;
}

.map-icon {
    font-size: 5rem;
    margin-bottom: 20px;
}

.map-info {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.map-info p {
    margin-bottom: 10px;
}

/* 产品详情页面样式 */
.product-detail {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.product-gallery {
    flex: 1;
}

.main-image {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    margin-bottom: 20px;
}

.thumbnails {
    display: flex;
    gap: 15px;
}

.thumbnail {
    flex: 1;
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s;
}

.thumbnail:hover {
    border-color: #e74c3c;
}

.product-info {
    flex: 1;
}

.product-info h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.product-price {
    margin-bottom: 20px;
}

.current-price {
    font-size: 2rem;
    color: #e74c3c;
    font-weight: bold;
}

.original-price {
    text-decoration: line-through;
    color: #999;
    margin-left: 15px;
}

.product-meta {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 10px;
}

.product-meta p {
    margin-bottom: 10px;
}

.product-features h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.product-features ul {
    list-style: none;
    margin-bottom: 30px;
}

.product-features ul li {
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
    position: relative;
    padding-left: 20px;
}

.product-features ul li:before {
    content: "✓";
    color: #2ecc71;
    position: absolute;
    left: 0;
}

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

.product-tabs {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid #eee;
}

.tab-btn {
    flex: 1;
    padding: 20px;
    background-color: #f8f9fa;
    border: none;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

.tab-btn.active,
.tab-btn:hover {
    background-color: #e74c3c;
    color: #fff;
}

.tab-content {
    padding: 30px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

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

.specs-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

.specs-table td:first-child {
    width: 30%;
    background-color: #f8f9fa;
    font-weight: bold;
}

.reviews-summary {
    text-align: center;
    margin-bottom: 30px;
}

.rating-score {
    display: inline-block;
    background-color: #f8f9fa;
    padding: 20px 40px;
    border-radius: 10px;
}

.score {
    font-size: 3rem;
    color: #e74c3c;
    font-weight: bold;
}

.rating-stars {
    color: #f39c12;
    font-size: 1.5rem;
    display: block;
    margin: 10px 0;
}

.review-item {
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.review-header {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.reviewer {
    font-weight: bold;
}

.review-date {
    color: #7f8c8d;
}

.review-rating {
    color: #f39c12;
}

.review-content {
    line-height: 1.8;
}

/* 新闻详情页面样式 */
.news-header {
    text-align: center;
    margin-bottom: 30px;
}

.news-header h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.4;
}

.news-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.news-content {
    line-height: 1.8;
}

.news-content p {
    margin-bottom: 20px;
}

.news-content h2 {
    color: #2c3e50;
    margin: 30px 0 20px;
}

.news-content blockquote {
    border-left: 4px solid #e74c3c;
    padding: 20px;
    background-color: #fdf2f1;
    margin: 30px 0;
    font-style: italic;
}

.news-content blockquote p {
    margin: 0;
}

.news-content cite {
    display: block;
    text-align: right;
    margin-top: 15px;
    font-weight: bold;
}

.news-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.news-tags a {
    display: inline-block;
    padding: 5px 15px;
    background-color: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 20px;
    margin-right: 10px;
    margin-bottom: 10px;
    transition: background-color 0.3s;
}

.news-tags a:hover {
    background-color: #e74c3c;
    color: #fff;
}

.related-news {
    margin-top: 50px;
}

.related-news h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

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

.related-item {
    display: flex;
    gap: 15px;
    background-color: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.related-image {
    font-size: 2rem;
}

.related-info h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1rem;
}

.related-info .date {
    margin: 0;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* 知识库分类页面样式 */
.category-intro {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
    background-color: #fff;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.category-icon.large {
    font-size: 6rem;
    padding: 30px;
}

.category-info {
    flex: 1;
}

.category-info h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

/* 知识库详情页面样式 */
.knowledge-header {
    text-align: center;
    margin-bottom: 30px;
}

.knowledge-header h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.4;
}

.knowledge-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.knowledge-content {
    line-height: 1.8;
}

.knowledge-content p {
    margin-bottom: 20px;
}

.knowledge-content h2 {
    color: #2c3e50;
    margin: 30px 0 20px;
}

.knowledge-content h3 {
    color: #34495e;
    margin: 25px 0 15px;
}

.knowledge-content ol,
.knowledge-content ul {
    margin-left: 30px;
    margin-bottom: 20px;
}

.knowledge-content li {
    margin-bottom: 10px;
}

.knowledge-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.knowledge-tags a {
    display: inline-block;
    padding: 5px 15px;
    background-color: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 20px;
    margin-right: 10px;
    margin-bottom: 10px;
    transition: background-color 0.3s;
}

.knowledge-tags a:hover {
    background-color: #3498db;
    color: #fff;
}

.related-knowledge {
    margin-top: 50px;
}

.related-knowledge h3 {
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    header .container {
        flex-direction: column;
        padding: 15px;
    }

    .logo {
        margin-bottom: 15px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px 10px;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .intro-content {
        flex-direction: column;
    }

    .about-intro {
        flex-direction: column;
    }

    .product-detail {
        flex-direction: column;
    }

    .news-article {
        flex-direction: column;
    }

    .article-item {
        flex-direction: column;
    }

    .category-intro {
        flex-direction: column;
        text-align: center;
    }

    .knowledge-meta,
    .news-meta {
        flex-direction: column;
        gap: 10px;
    }

    .review-header {
        flex-direction: column;
        gap: 10px;
    }

    .related-item {
        flex-direction: column;
    }

    .step {
        flex-direction: column;
        text-align: center;
    }

    .download-item {
        flex-direction: column;
        text-align: center;
    }
}

/* SEO优化相关 */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: #3498db;
    transition: color 0.3s;
}

a:hover {
    color: #e74c3c;
}

img {
    max-width: 100%;
    height: auto;
}