/* 专题页面通用样式 */
body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 页面公共部分样式 */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .nav-link {
    font-weight: 500;
    transition: color 0.3s;
}

.navbar .nav-link.active {
    color: #0d6efd;
    font-weight: 600;
}

/* Banner样式 */
.article-banner,
.topic-banner,
.guide-banner,
.standard-banner {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    margin-bottom: 0;
}

.article-banner h1,
.topic-banner h1,
.guide-banner h1,
.standard-banner h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.article-banner .lead,
.topic-banner .lead,
.guide-banner .lead,
.standard-banner .lead {
    font-size: 1.25rem;
    color: #34495e;
    margin-bottom: 1.5rem;
}

.article-banner .author,
.topic-banner .author,
.guide-banner .author,
.standard-banner .author {
    font-size: 0.95rem;
    color: #7f8c8d;
}

/* 导航条样式 */
.article-nav,
.topic-nav,
.guide-nav,
.standard-nav {
    background-color: #fff;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 56px;
    z-index: 100;
    padding: 10px 0;
}

.article-nav ul,
.topic-nav ul,
.guide-nav ul,
.standard-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}

.article-nav li,
.topic-nav li,
.guide-nav li,
.standard-nav li {
    margin-right: 20px;
}

.article-nav a,
.topic-nav a,
.guide-nav a,
.standard-nav a {
    color: #555;
    text-decoration: none;
    font-weight: 500;
    padding: 5px 0;
    transition: all 0.3s;
    position: relative;
}

.article-nav a:hover,
.topic-nav a:hover,
.guide-nav a:hover,
.standard-nav a:hover {
    color: #0d6efd;
}

.article-nav a::after,
.topic-nav a::after,
.guide-nav a::after,
.standard-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #0d6efd;
    transition: width 0.3s;
}

.article-nav a:hover::after,
.topic-nav a:hover::after,
.guide-nav a:hover::after,
.standard-nav a:hover::after {
    width: 100%;
}

/* 内容区域通用样式 */
.article-content,
.topic-content,
.guide-content,
.standard-content {
    padding: 50px 0;
}

.article-section,
.topic-section,
.guide-section,
.standard-section {
    margin-bottom: 60px;
}

.article-section h2,
.topic-section h2,
.guide-section h2,
.standard-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 10px;
}

.article-section h2::after,
.topic-section h2::after,
.guide-section h2::after,
.standard-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: #0d6efd;
}

.article-section h3,
.topic-section h3,
.guide-section h3,
.standard-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #34495e;
}

.section-content {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    padding: 20px 25px;
}

/* 信息卡片样式 */
.info-card,
.concept-card,
.scene-card,
.info-box {
    background-color: #f8f9fa;
    border-left: 4px solid #0d6efd;
    padding: 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.info-card h4,
.concept-card h4,
.scene-card h4,
.info-box h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 列表样式 */
.feature-list,
.tech-list,
.concept-list,
.scene-list,
.factors-list,
.reason-list,
.tips-list,
.factor-list {
    padding-left: 20px;
    margin-bottom: 20px;
}

.feature-list li,
.tech-list li,
.concept-list li,
.scene-list li,
.factors-list li,
.reason-list li,
.tips-list li,
.factor-list li {
    margin-bottom: 10px;
}

/* 表格样式 */
.table {
    margin-bottom: 0;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.table-responsive {
    margin-bottom: 20px;
}

/* 工具卡片样式 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.tool-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.tool-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.tool-card .features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tool-card .features span {
    background-color: #e9f2ff;
    color: #3273dc;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* 操作步骤样式 */
.step-box {
    position: relative;
    padding-left: 60px;
    margin-bottom: 30px;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 45px;
    height: 45px;
    background-color: #0d6efd;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
}

.step-box h3 {
    margin-top: 5px;
}

/* 常见问题样式 */
.faq-item {
    margin-bottom: 25px;
}

.faq-item h3,
.faq-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #2c3e50;
}

.faq-box,
.tips-box {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* 重要性板块样式 */
.importance-points {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.importance-item {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.importance-item i {
    color: #0d6efd;
    font-size: 1.4rem;
    margin-right: 10px;
}

/* 标准水平样式 */
.standard-level-wrap {
    margin-bottom: 20px;
}

.standard-level {
    margin-bottom: 15px;
}

.level-title {
    font-weight: 600;
    display: inline-block;
    width: 80px;
}

.level-value {
    font-weight: 500;
    color: #0d6efd;
}

.level-bar {
    height: 8px;
    background-color: #e9ecef;
    border-radius: 4px;
    margin: 8px 0;
}

.level-fill {
    height: 100%;
    background-color: #0d6efd;
    border-radius: 4px;
}

/* 内容标准卡片样式 */
.content-standard-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

/* 商业标准样式 */
.business-standard-item {
    display: flex;
    margin-bottom: 25px;
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.standard-icon {
    font-size: 2rem;
    color: #0d6efd;
    margin-right: 20px;
}

.standard-details {
    flex: 1;
}

/* 专家建议卡片样式 */
.advice-card {
    text-align: center;
    background-color: #fff;
    border-radius: 8px;
    padding: 25px 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    height: 100%;
}

.advice-icon {
    font-size: 2.5rem;
    color: #0d6efd;
    margin-bottom: 15px;
}

.advice-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

/* 相关文章和指南样式 */
.related-topics,
.related-articles,
.related-guides {
    background-color: #f8f9fa;
}

.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.card-title {
    font-weight: 600;
    color: #2c3e50;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .article-banner h1,
    .topic-banner h1,
    .guide-banner h1,
    .standard-banner h1 {
        font-size: 1.8rem;
    }
    
    .article-section h2,
    .topic-section h2,
    .guide-section h2,
    .standard-section h2 {
        font-size: 1.5rem;
    }
    
    .importance-points {
        grid-template-columns: 1fr;
    }
    
    .business-standard-item {
        flex-direction: column;
    }
    
    .standard-icon {
        margin-bottom: 15px;
    }
}