/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.logo a {
    color: white;
    text-decoration: none;
}

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

.nav li {
    margin-left: 2rem;
    position: relative;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 0;
    position: relative;
}

.nav a:hover,
.nav a.active {
    color: #4FC3F7;
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #4FC3F7;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* 主轮播图 */
.hero-slider {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 70px;
}

.slide {
    display: none;
    animation: fadeIn 1s;
}

.slide.active {
    display: block;
}

.slide-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s;
    font-weight: 700;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s 0.3s both;
    opacity: 0.9;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: #2196F3;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    background: #1976D2;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-outline {
    background: transparent;
    border: 2px solid #2196F3;
    color: #2196F3;
}

.btn-outline:hover {
    background: #2196F3;
    color: white;
}

/* 产品特色 */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: #2196F3;
    margin: 1rem auto;
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 产品网格 - 优化图片显示 */
.featured-products {
    padding: 80px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* 产品图片优化样式 */
.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image::before {
    /* content: "📷 图片加载中"; */
    /* position: absolute; */
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translate(-50%, -50%); */
    /* color: #999; */
    /* font-size: 0.9rem; */
    /* z-index: 1; */
}

.product-image.loading::before {
    content: "📷 图片加载中";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #999;
    font-size: 0.9rem;
    z-index: 1;
}

.product-image img.loaded + .product-image::before {
    display: none;
}

.product-image img {
    width: auto;
    max-width: 90%;
    height: auto;
    max-height: 180px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05); /* 减小悬停缩放效果 */
}



.product-image img.lazyloaded {
    opacity: 1;
}

/* 图片加载错误处理 */
.product-image img.error {
    display: none;
}

.product-image img.error + .image-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: #e9ecef;
    color: #6c757d;
    font-size: 2rem;
    border-radius: 5px;
}

.image-fallback {
    display: none;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: #e9ecef;
    color: #6c757d;
    font-size: 3rem;
    border-radius: 5px;
}

.product-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.product-info p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex: 1;
}

/* 公司简介 */
.about-preview {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    position: relative;
}

.about-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.1);
}

.about-content {
    position: relative;
    z-index: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.about-content p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: #4FC3F7;
    font-size: 1.2rem;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

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

.footer-section a:hover {
    color: #4FC3F7;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    text-align: center;
    color: #bdc3c7;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: #bdc3c7;
    text-decoration: none;
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: #4FC3F7;
}

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

.no-products {
    text-align: center;
    padding: 3rem;
    color: #666;
    font-size: 1.1rem;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #2a5298;
        flex-direction: column;
        padding: 1rem 0;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav li {
        margin: 0;
        text-align: center;
    }
    
    .nav a {
        display: block;
        padding: 1rem;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .slide-content h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-slider {
        padding: 120px 0 80px;
        margin-top: 60px;
    }
    
    /* 移动端产品图片优化 */
    .product-image {
        height: 180px;
    }
    
    .product-image img {
        max-height: 160px;
        max-width: 85%;
    }
}

/* 产品详情页样式 */
.product-detail {
    padding: 100px 0 50px;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

/* 产品详情页图片优化 */
.product-detail-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    background: #f8f9fa;
    position: relative;
    padding: 20px; /* 添加内边距 */
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-image img {
    width: auto; /* 改为自动宽度 */
    max-width: 100%; /* 限制最大宽度 */
    height: auto; /* 保持高度自适应 */
    max-height: 400px; /* 限制最大高度 */
    object-fit: contain; /* 保持图片完整显示 */
    display: block;
}

.product-detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.product-detail-info .description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: #666;
}

.product-specifications {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.product-specifications h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 联系表单样式 */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2196F3;
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.1);
}

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

/* 下载中心样式 */
.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.download-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.download-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.download-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
}
/* 页面标题和面包屑 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0 40px;
    margin-top: 70px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.breadcrumb {
    font-size: 0.9rem;
    opacity: 0.9;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: #4FC3F7;
}

/* 页面内容 */
.page-content {
    padding: 60px 0;
}

/* 关于我们页面特定样式 */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.content-main h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.content-main h3 {
    color: #2c3e50;
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.content-main p {
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.company-advantages {
    margin: 4rem 0;
    padding: 3rem 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.company-advantages h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem 1rem;
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.company-timeline {
    margin: 4rem 0;
}

.company-timeline h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #2196F3;
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: #2196F3;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -10px;
    z-index: 2;
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    width: 45%;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 20px;
    height: 20px;
    background: #2196F3;
    border-radius: 50%;
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -30px;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -30px;
}

/* 产品中心页面特定样式 */
.products-filter {
    background: #f8f9fa;
    padding: 2rem 0;
    border-bottom: 1px solid #eee;
}

.filter-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: end;
}

.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    flex: 1;
}

.products-count {
    margin-bottom: 2rem;
    color: #666;
    font-size: 1.1rem;
}

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #ff6b6b;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-category {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.product-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-actions {
    display: flex;
    gap: 0.5rem;
}

.categories-info {
    padding: 4rem 0;
    background: #f8f9fa;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.category-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* 下载中心页面特定样式 */
.downloads-filter {
    background: #f8f9fa;
    padding: 2rem 0;
    border-bottom: 1px solid #eee;
}

.downloads-count {
    margin-bottom: 2rem;
    color: #666;
    font-size: 1.1rem;
}

.downloads-grid {
    display: grid;
    gap: 1.5rem;
}

.download-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    transition: transform 0.3s;
}

.download-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.download-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.download-content {
    flex: 1;
}

.download-content h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.download-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.download-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.file-size, .download-count, .file-category {
    background: #f8f9fa;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
}

.download-actions {
    display: flex;
    gap: 0.5rem;
}

.download-faq {
    padding: 4rem 0;
    background: #f8f9fa;
}

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

.faq-item {
    background: white;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.faq-item h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.faq-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 联系我们页面特定样式 */
.contact-info {
    padding: 3rem 0;
    background: #f8f9fa;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-item {
    text-align: center;
    padding: 2rem 1rem;
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.contact-content {
    padding: 4rem 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-form-section h2 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.contact-form-section > p {
    color: #666;
    margin-bottom: 2rem;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.required {
    color: #dc3545;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.map-section, .contact-details, .wechat-section {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.map-section h3, .contact-details h3, .wechat-section h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.map-placeholder, .qrcode-placeholder {
    background: #f8f9fa;
    border: 2px dashed #ddd;
    border-radius: 10px;
    padding: 3rem 2rem;
    text-align: center;
    margin-bottom: 1rem;
}

.map-icon, .qrcode-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-method {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
}

.contact-method:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-method strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

/* 产品详情页面特定样式 */
.product-detail {
    padding: 40px 0;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.product-detail-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.product-detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.product-features {
    margin: 2rem 0;
}

.product-features h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.product-features ul {
    list-style: none;
    padding: 0;
}

.product-features li {
    padding: 0.5rem 0;
    color: #666;
}

.product-specifications {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.product-specifications h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.specs-content {
    line-height: 1.8;
    color: #666;
}

.product-applications {
    margin-bottom: 3rem;
}

.product-applications h2 {
    margin-bottom: 2rem;
    color: #2c3e50;
    text-align: center;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.application-item {
    text-align: center;
    padding: 2rem 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.application-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.application-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.related-products {
    margin-bottom: 3rem;
}

.related-products h2 {
    margin-bottom: 2rem;
    color: #2c3e50;
    text-align: center;
}

.product-support {
    padding: 4rem 0;
    background: #f8f9fa;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.support-item {
    text-align: center;
    padding: 2rem 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.support-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.support-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.support-item p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* 无内容状态 */
.no-products, .no-downloads {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.no-products-icon, .no-downloads-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.no-products h3, .no-downloads h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.no-products p, .no-downloads p {
    color: #666;
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.page-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s;
    min-width: 40px;
    text-align: center;
}

.page-link:hover {
    background: #f8f9fa;
    border-color: #2196F3;
}

.page-link.active {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}

/* 团队介绍样式 */
.team-section {
    margin: 4rem 0;
    padding: 3rem 0;
    border-top: 1px solid #eee;
}

.team-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member {
    text-align: center;
    padding: 2rem 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-avatar {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.team-member h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.team-member p {
    color: #666;
    line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 50px;
    }
    
    .timeline-year {
        left: 20px;
        transform: none;
    }
    
    .timeline-content {
        width: 100%;
    }
    
    .timeline-content::before {
        left: -40px !important;
    }
    
    .download-item {
        flex-direction: column;
        text-align: center;
    }
    
    .download-meta {
        justify-content: center;
    }
    
    /* 移动端产品图片优化 */
    .product-image {
        height: 150px;
    }
    
    .product-image img {
        max-height: 140px;
        max-width: 85%;
    }
    
    .product-detail-image img {
        max-height: 300px;
    }
}

@media (max-width: 576px) {
    .product-image {
        height: 150px;
    }
    
    .product-image img {
        max-height: 130px;
        max-width: 80%;
    }
    
    .product-detail-image img {
        max-height: 250px;
    }
}