/* 产品与服务页面专属样式 */

/* 页面标题区域 */
.page-header {
    background: linear-gradient(135deg, #0066cc 0%, #004a99 100%);
    color: #fff;
    padding: 100px 0 60px;
    text-align: center;
}

.page-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 20px;
    opacity: 0.9;
}

/* 产品分类导航 */
.product-nav {
    background-color: #f5f7fa;
    padding: 20px 0;
    position: sticky;
    top: 70px;
    z-index: 100;
}

.product-nav-list {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
}

.product-nav-list li {
    margin: 5px 15px;
}

.product-nav-link {
    display: block;
    padding: 10px 20px;
    color: #555;
    text-decoration: none;
    font-weight: 500;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.product-nav-link:hover,
.product-nav-link.active {
    background-color: #0066cc;
    color: #fff;
}

/* 产品分类区域 */
.product-category {
    padding: 80px 0;
}

.product-category:nth-child(even) {
    background-color: #f5f7fa;
}

.product-detail {
    display: flex;
    gap: 60px;
    margin-bottom: 50px;
}

/* 产品图片区域 */
.product-images {
    flex: 1;
    max-width: 500px;
}

.main-image {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.main-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.image-thumbnails {
    display: flex;
    gap: 10px;
}

.thumbnail {
    flex: 1;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.thumbnail:hover,
.thumbnail.active {
    opacity: 1;
}

.thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* 产品信息区域 */
.product-info {
    flex: 1;
}

.product-name {
    font-size: 28px;
    font-weight: bold;
    color: #0066cc;
    margin-bottom: 25px;
}

.product-features,
.product-specs {
    margin-bottom: 25px;
}

.product-features h4,
.product-specs h4 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
}

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

.product-features li,
.product-specs li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    line-height: 1.6;
}

.product-features li::before,
.product-specs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #0066cc;
    font-weight: bold;
    font-size: 18px;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* 产品优势/应用场景 */
.product-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.benefit-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.benefit-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background-color: #e6f0ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon i {
    font-size: 28px;
    color: #0066cc;
}

.benefit-item h4 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
}

.benefit-item p {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
}

/* 产品应用场景 */
.product-applications {
    margin-top: 40px;
}

.product-applications h4 {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 25px;
    color: #333;
    text-align: center;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.application-item {
    text-align: center;
    padding: 25px 15px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.application-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 15px;
}

.application-item h5 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #0066cc;
}

.application-item p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* 场景解决方案 */
.solutions-section {
    padding: 80px 0;
    background-color: #f5f7fa;
}

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

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

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

.solution-image {
    height: 220px;
    overflow: hidden;
}

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

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

.solution-content {
    padding: 30px;
}

.solution-content h3 {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #0066cc;
}

.solution-content p {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 20px;
}

.solution-content ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 25px;
}

.solution-content li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    font-size: 14px;
    color: #555;
}

.solution-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #0066cc;
    font-weight: bold;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.solution-link:hover {
    color: #0052a3;
}

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

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

/* 服务流程 */
.service-process {
    padding: 80px 0;
}

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

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background-color: #0066cc;
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-step h3 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.process-step p {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    .product-detail {
        flex-direction: column;
        gap: 40px;
    }
    
    .product-images,
    .product-info {
        max-width: 100%;
    }
}

@media screen and (max-width: 768px) {
    .page-title {
        font-size: 32px;
    }
    
    .page-subtitle {
        font-size: 18px;
    }
    
    .product-nav-list {
        flex-direction: column;
        align-items: center;
    }
    
    .product-nav-list li {
        margin: 5px 0;
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

@media screen and (max-width: 576px) {
    .product-benefits,
    .application-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .image-thumbnails {
        gap: 5px;
    }
}