/* ========================================
   服务子页面专用样式 - 优化版
   Service Subpage Styles
   ======================================== */

/* 页面标题区 */
.page-header {
    padding: 100px 0 40px;
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f0f8 100%);
}

.breadcrumb {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb .separator {
    margin: 0 0.4rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.3;
}

/* 技术介绍区 */
.tech-intro {
    padding: 1.5rem 0;
    background: var(--bg-white);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.intro-text h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
}

.intro-text h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1rem 0 0.5rem;
}

.intro-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.6rem;
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

.intro-images {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.image-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.image-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.image-card img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    display: block;
    padding: 1rem;
    background: var(--bg-white);
}

.image-caption {
    text-align: center;
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    margin: 0;
}

/* 服务列表编号样式 */
.service-list-numbered {
    list-style: none;
    padding: 0;
    counter-reset: item;
}

.service-list-numbered li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.service-list-numbered li::before {
    counter-increment: item;
    content: counter(item) ".";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1rem;
}

/* 对比表格样式 */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.comparison-table th,
.comparison-table td {
    padding: 0.8rem;
    text-align: left;
    border: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.comparison-table tr:nth-child(even) {
    background: var(--bg-light);
}

.comparison-table tr:hover {
    background: rgba(10, 77, 140, 0.05);
}

/* 文章解读区 */
.articles {
    padding: 1.5rem 0;
    background: var(--bg-light);
}

.articles .section-title {
    text-align: center;
    margin-bottom: 1rem;
}

.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.8rem;
}

.article-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.article-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.article-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    background: var(--accent-color);
    border-radius: var(--radius-sm);
    margin-bottom: 0.4rem;
}

.article-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.article-summary {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.article-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.keyword {
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
    color: var(--primary-color);
    background: rgba(10, 77, 140, 0.1);
    border-radius: var(--radius-sm);
}

.article-ref {
    margin-top: 0.4rem;
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
    font-style: italic;
    color: var(--text-light);
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-color);
}

/* 联系咨询区 */
.contact-cta {
    padding: 1.5rem 0;
    background: var(--primary-color);
    text-align: center;
    color: white;
}

.contact-cta h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.contact-cta p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 0.8rem;
}

.contact-cta .btn-primary {
    background: white;
    color: var(--primary-color);
}

.contact-cta .btn-primary:hover {
    background: var(--bg-light);
}

/* 响应式 */
@media (max-width: 1024px) {
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .intro-images {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 80px 0 30px;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .intro-text h2 {
        font-size: 1.2rem;
    }
    
    .article-list {
        grid-template-columns: 1fr;
    }
    
    .intro-images {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .image-card img {
        max-height: 150px;
    }
}

@media (max-width: 480px) {
    .intro-images {
        grid-template-columns: 1fr;
    }
    
    .image-card img {
        max-height: 180px;
    }
}