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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}



.carousel-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
    margin-bottom: 100px;
}

.carousel-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.carousel-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}



/* 章节样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 700;
}

.section-header p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们部分 */
.about-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.about-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.about-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.about-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 公司简介部分 */
.company-intro {
    padding: 20px 0 100px 0;
    background: white;
}

/* 产品展示部分 */
.products-showcase {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.product-category-section {
    margin-bottom: 80px;
}

.product-category-section:last-child {
    margin-bottom: 0;
}

.category-title {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
    font-weight: 600;
    position: relative;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.intro-content {
    display: block;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-text h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 30px;
    font-weight: 700;
}

.intro-text p {
    font-size: 1.1rem;
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.8;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    color: #667eea;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-item p {
    color: #7f8c8d;
    font-weight: 500;
}

.intro-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* 发展历程 */
.timeline-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    margin-right: 0;
    text-align: left;
    padding-left: 40px;
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -60px;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -60px;
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: #667eea;
    margin-bottom: 10px;
    font-weight: 700;
}

.timeline-content h4 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.timeline-content p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 企业文化 */
.culture-section {
    padding: 100px 0;
    background: white;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.culture-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    border: 1px solid #f0f0f0;
}

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

.culture-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 20px;
}

.culture-card h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.culture-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 团队介绍 */
.team-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.team-member {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
}

.member-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 4px solid #667eea;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 600;
}

.team-member .position {
    color: #667eea;
    font-weight: 500;
    margin-bottom: 15px;
}

.team-member .description {
    color: #7f8c8d;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 服务标签 */
.services-overview {
    padding: 80px 0;
    background: white;
}

.services-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 15px 30px;
    background: white;
    border: 2px solid #667eea;
    color: #667eea;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.tab-btn:hover,
.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-2px);
}

/* 服务详情 */
.service-detail {
    display: none;
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.service-detail.active {
    display: block;
}

.service-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.service-info h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
}

.service-info p {
    font-size: 1.1rem;
    color: #7f8c8d;
    margin-bottom: 30px;
    line-height: 1.8;
}

.service-features {
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.feature-item i {
    color: #667eea;
    margin-right: 15px;
    font-size: 1.2rem;
}

.feature-item span {
    color: #2c3e50;
    font-weight: 500;
}

.tech-stack h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.service-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* 成功案例 */
.case-studies {
    padding: 100px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.case-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

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

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

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.case-content p {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: #f0f0f0;
    color: #667eea;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 联系信息 */
.contact-info {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.contact-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.contact-icon i {
    font-size: 2rem;
    color: white;
}

.contact-card h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-card p {
    color: #7f8c8d;
    margin-bottom: 5px;
}

/* 联系表单 */
.contact-form-section {
    padding: 80px 0;
    background: white;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h2 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 700;
}

.form-header p {
    color: #7f8c8d;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* 地图 */
.map-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.map-container {
    max-width: 800px;
    margin: 0 auto;
    height: 400px;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.map-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
}

.map-placeholder i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #667eea;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #ecf0f1;
}

.footer-section p {
    margin-bottom: 10px;
    color: #bdc3c7;
}

.footer-section i {
    margin-right: 10px;
    color: #3498db;
}

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

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

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

.footer-section ul li a:hover {
    color: #3498db;
}

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

.footer-bottom p {
    margin-bottom: 5px;
}

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

.footer-bottom a:hover {
    color: #3498db;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .carousel-content h1 {
        font-size: 2.5rem;
    }
    
    .carousel-content p {
        font-size: 1.1rem;
    }
    
    .carousel-slide img {
        width: 80%;
        height: 50%;
    }
    
    .carousel-content {
        margin-bottom: 60px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .about-grid,
    .culture-grid,
    .team-grid,
    .cases-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-content,
    .service-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .services-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 50px;
        margin-right: 0;
        text-align: left;
        padding-left: 30px;
        padding-right: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -45px;
        right: auto;
    }
    

    

}

@media (max-width: 480px) {
    .page-header {
        padding: 100px 0 60px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    

    

    
    .cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .about-section,
    .company-intro,
    .products-showcase,
    .timeline-section,
    .culture-section,
    .team-section,
    .case-studies,
    .contact-info,
    .contact-form-section,
    .map-section {
        padding: 60px 0;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .contact-card {
        padding: 30px 20px;
    }
    
    .category-title {
        font-size: 1.6rem;
        margin-bottom: 30px;
    }
    
    .product-category-section {
        margin-bottom: 60px;
    }
}

/* 产品分类标签 */
.product-tabs {
    background: #f8f9fa;
    padding: 40px 0;
    border-bottom: 1px solid #e9ecef;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    background: white;
    border: 2px solid #e9ecef;
    color: #666;
    padding: 15px 30px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 200px;
    justify-content: center;
}

.tab-btn:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.2);
}

.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.tab-btn i {
    font-size: 1.2rem;
}

/* 产品分类内容 */
.product-category {
    display: none;
    padding: 80px 0;
}

.product-category.active {
    display: block;
}

/* 技术服务占位符 */
.services-content {
    text-align: center;
    padding: 60px 0;
}

.service-placeholder {
    background: white;
    padding: 60px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.service-placeholder i {
    font-size: 4rem;
    color: #667eea;
    margin-bottom: 30px;
}

.service-placeholder h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.service-placeholder p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.service-placeholder .contact-btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
    transition: all 0.3s ease;
}

.service-placeholder .contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

/* 产品清单页面样式 */
.products-catalog {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 40px;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 140px;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-content {
    padding: 12px;
}

.product-content h3 {
    margin: 0 0 6px 0;
    color: #333;
    font-size: 1rem;
}

.product-content p {
    color: #666;
    margin: 0 0 10px 0;
    line-height: 1.3;
    font-size: 0.85rem;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.product-tags .tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
}

/* 技术优势部分 */
.tech-advantages {
    padding: 60px 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 12px;
    background: #f8f9fa;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.advantage-card h3 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.3rem;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 产品详情页面样式 */
.product-detail {
    padding: 60px 0;
    background: white;
}

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

.breadcrumb {
    margin-bottom: 20px;
    color: #666;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: #1976d2;
    text-decoration: none;
}

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

.product-title h1 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 2.5rem;
}

.product-title p {
    color: #666;
    font-size: 1.1rem;
    margin: 0;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.product-image-section {
    position: sticky;
    top: 20px;
}

.main-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

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

.product-info-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.product-description h2 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 1.8rem;
}

.product-description h3 {
    margin: 30px 0 15px 0;
    color: #333;
    font-size: 1.3rem;
}

.product-description p {
    color: #666;
    line-height: 1.6;
    margin: 0 0 15px 0;
}

.product-description ul {
    color: #666;
    line-height: 1.6;
    padding-left: 20px;
}

.product-description li {
    margin-bottom: 8px;
}

.tech-specs {
    display: grid;
    gap: 15px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.spec-label {
    font-weight: 600;
    color: #333;
}

.spec-value {
    color: #666;
}

.application-areas {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.app-tag {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.product-contact {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
}

.product-contact h3 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.3rem;
}

.product-contact p {
    color: #666;
    margin: 0 0 20px 0;
    line-height: 1.6;
}

.contact-info p {
    margin: 0 0 10px 0;
    color: #666;
}

.contact-info i {
    color: #1976d2;
    margin-right: 10px;
    width: 20px;
}

.contact-btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
    margin-top: 15px;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* 相关产品部分 */
.related-products {
    padding: 60px 0;
    background: #f8f9fa;
}

.related-products .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-image-section {
        position: static;
    }
    
    .product-title h1 {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 产品分类标签响应式 */
    .tab-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .tab-btn {
        min-width: 250px;
        padding: 12px 25px;
        font-size: 0.9rem;
    }
    
    .service-placeholder {
        padding: 40px 25px;
        margin: 0 20px;
    }
    
    .service-placeholder h3 {
        font-size: 1.5rem;
    }
    
    .service-placeholder p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-title h1 {
        font-size: 1.8rem;
    }
    
    .product-contact {
        padding: 20px;
    }
    
    /* 产品分类标签小屏幕响应式 */
    .tab-btn {
        min-width: 200px;
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .service-placeholder {
        padding: 30px 20px;
        margin: 0 15px;
    }
    
    .service-placeholder h3 {
        font-size: 1.3rem;
    }
    
    .service-placeholder p {
        font-size: 0.9rem;
    }
}

/* 产品分类标签按钮样式增强 */
.tab-btn {
    font-size: 1.25rem !important;
    font-weight: bold !important;
    padding: 18px 38px !important;
    border-radius: 8px !important;
}