/* 文章页面专用样式 */

/* 面包屑导航 */
.breadcrumb-container {
    background: var(--bg-secondary);
    padding: 1rem 0;
    margin-top: 70px;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 0.5rem;
    color: var(--text-light);
}

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

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

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-item i {
    margin-right: 0.25rem;
}

/* 文章主体 */
.article-main {
    padding: 2rem 0;
    min-height: 70vh;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
}

/* 文章头部 */
.article-header {
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.article-meta > div {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-meta i {
    font-size: 0.8rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.article-summary {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.article-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.article-tags i {
    margin-right: 0.5rem;
}

.article-tags .tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* 文章封面图 */
.article-featured-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
    position: relative;
}

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

/* 文章正文 */
.article-body {
    padding: 2rem;
}

/* 目录 */
.table-of-contents {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.table-of-contents h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.table-of-contents ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.table-of-contents li {
    margin-bottom: 0.5rem;
}

.table-of-contents a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    padding: 0.25rem 0;
}

.table-of-contents a:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

/* 文章内容 */
.content {
    line-height: 1.8;
    color: var(--text-primary);
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.content h1 {
    font-size: 2.2rem;
}

.content h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.content h3 {
    font-size: 1.4rem;
}

.content h4 {
    font-size: 1.2rem;
}

.content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.content ul,
.content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.content blockquote {
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.content pre {
    background: #1a1a1a;
    color: #e1e1e1;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 1.5rem 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.content code:not(pre code) {
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    box-shadow: var(--shadow-medium);
}

.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.content th,
.content td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.content th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.content td {
    color: var(--text-secondary);
}

/* 文章底部 */
.article-footer {
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.article-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.author-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.article-share h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.share-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.share-btn.twitter {
    background: #1da1f2;
    color: white;
    border-color: #1da1f2;
}

.share-btn.facebook {
    background: #3b5998;
    color: white;
    border-color: #3b5998;
}

.share-btn.linkedin {
    background: #0077b5;
    color: white;
    border-color: #0077b5;
}

.share-btn.weibo {
    background: #e6162d;
    color: white;
    border-color: #e6162d;
}

/* 相关文章 */
.related-articles {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.related-articles h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.related-item {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.related-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.related-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
}

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

.related-content {
    padding: 1rem;
}

.related-content h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.related-content h4 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.related-content h4 a:hover {
    color: var(--primary-color);
}

.related-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.related-date {
    color: var(--text-light);
    font-size: 0.8rem;
}

/* 评论区域 */
.comments-section {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.comments-section h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.comment-placeholder {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

/* 文章列表页面样式 */
.articles-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 6rem 0 4rem;
    text-align: center;
}

.articles-hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.articles-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.articles-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.articles-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.articles-stats .stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.articles-stats .stat-item i {
    font-size: 1.2rem;
}

/* 文章筛选 */
.articles-filter {
    background: var(--bg-secondary);
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-container {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    flex: 1;
    min-width: 300px;
}

.search-box input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.search-btn {
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--secondary-color);
}

.category-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.sort-options select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
}

/* 文章列表 */
.articles-list {
    padding: 3rem 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.article-card .article-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.article-card .article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.article-card .article-content {
    padding: 1.5rem;
}

.article-card .article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

.article-card .article-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-card .article-title {
    margin: 0 0 1rem 0;
    font-size: 1.3rem;
    font-weight: 600;
}

.article-card .article-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.article-card .article-title a:hover {
    color: var(--primary-color);
}

.article-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-card .article-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.article-card .article-tags .tag {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.article-card .article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
}

.article-card .article-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

.article-card .article-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination-number {
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.pagination-number:hover,
.pagination-number.active {
    background: var(--primary-color);
    color: white;
}

.pagination-dots {
    color: var(--text-light);
    padding: 0.5rem;
}

/* 热门标签 */
.popular-tags {
    background: var(--bg-secondary);
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.popular-tags h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.tag-link {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.tag-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .article-title {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .article-header {
        padding: 1.5rem;
    }
    
    .article-body {
        padding: 1.5rem;
    }
    
    .article-footer {
        padding: 1.5rem;
    }
    
    .articles-title {
        font-size: 2rem;
    }
    
    .articles-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-box {
        min-width: 100%;
    }
    
    .category-filter {
        justify-content: center;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .pagination-numbers {
        order: -1;
        margin-bottom: 1rem;
    }
    
    .share-buttons {
        justify-content: center;
    }
}

@media screen and (max-width: 480px) {
    .article-title {
        font-size: 1.8rem;
    }
    
    .articles-title {
        font-size: 1.8rem;
    }
    
    .article-header,
    .article-body,
    .article-footer {
        padding: 1rem;
    }
    
    .filter-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .article-card .article-content {
        padding: 1rem;
    }
    
    .tags-cloud {
        gap: 0.5rem;
    }
    
    .tag-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}