/* 文章页面样式 */
.content-section {
    display: flex;
    gap: 30px;
}

.main-content {
    flex: 1;
}

.article-header {
    margin-bottom: 20px;
}

.article-lead {
    font-size: 18px;
    color: #c70000;
    margin-bottom: 12px;
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 0.5px;
}

.article-title {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin: 15px 0;
    line-height: 1.5;
    letter-spacing: 0.8px;
}

.article-subtitle {
    font-size: 20px;
    color: #666;
    margin: 12px 0 20px;
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 0.5px;
    padding-left: 12px;
    
}

.article-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}

.meta-left {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.article-category {
    color: #c00;
    font-weight: 500;
}

.article-summary {
    background-color: #f5f5f5;
    padding: 15px;
    margin-bottom: 20px;
    border-left: 4px solid #c00;
}

.article-summary h3 {
    margin-top: 0;
    font-size: 16px;
    font-weight: 600;
}

.article-summary p {
    margin-bottom: 0;
    color: #555;
}

.article-body {
    margin-bottom: 30px;
}

.article-image {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
}

.image-caption {
    font-size: 13px;
    color: #666;
    text-align: center;
    margin-bottom: 20px;
}

.article-text h2 {
    font-size: 22px;
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: 600;
}

.article-text p {
    margin-bottom: 20px;
    font-size: 16px;
}

.article-quote {
    background-color: #f9f9f9;
    padding: 20px;
    margin: 20px 0;
    border-left: 4px solid #ddd;
    position: relative;
}

.article-quote i {
    position: absolute;
    top: 10px;
    left: 10px;
    color: #ddd;
    font-size: 20px;
}

.article-quote p {
    margin: 0 0 10px 25px;
    font-style: italic;
}

.quote-source {
    text-align: right;
    font-size: 14px;
    color: #666;
}

.article-highlight {
    background-color: #f9f9f9;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}

.article-highlight h3 {
    margin-top: 0;
    font-size: 16px;
    font-weight: 600;
}

.article-highlight ul {
    margin-bottom: 0;
    padding-left: 20px;
}

.article-tags {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    flex-wrap: wrap;
    align-items: center;
}

.tag {
    background-color: #f0f0f0;
    color: #555;
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 15px;
    text-decoration: none;
}

.tag:hover {
    background-color: #e0e0e0;
}

.related-articles {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.section-title {
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: 600;
}

.related-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.related-item {
    display: flex;
    text-decoration: none;
    color: inherit;
    gap: 15px;
}

.related-image {
    flex: 0 0 120px;
    height: 80px;
    overflow: hidden;
}

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

.related-item:hover .related-image img {
    transform: scale(1.05);
}

.related-info {
    flex: 1;
}

.related-info h4 {
    margin: 0 0 5px;
    font-size: 16px;
    font-weight: 500;
    color: #333;
}

.related-meta {
    font-size: 13px;
    color: #666;
    display: flex;
    gap: 15px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: #666;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #c00;
}

.breadcrumb i {
    margin: 0 8px;
    font-size: 10px;
}

.breadcrumb span {
    color: #333;
}

.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 40px;
    height: 40px;
    background-color: rgba(0,0,0,0.3);
    color: white;
    border-radius: 50%;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s;
    z-index: 100;
}

.back-to-top:hover {
    background-color: rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .content-section {
        flex-direction: column;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .related-list {
        grid-template-columns: 1fr;
    }
}