/* ============================================
   文章详情页样式
   ============================================ */

/* === 文章页面布局 === */
.article-page {
  padding-top: 88px;
  min-height: 100vh;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  padding-bottom: 80px;
}

/* === 面包屑 === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.breadcrumb .separator {
  color: var(--color-text-muted);
}

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

/* === 文章头部 === */
.article-header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.article-header .article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-header .article-category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}

.article-header .article-category.php {
  background: rgba(139, 92, 246, 0.1);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.article-header .article-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.article-read-time {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-read-time::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--color-text-muted);
  border-radius: 50%;
}

.article-header .article-title {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
  color: var(--color-text);
}

.article-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
}

.author-name {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.author-desc {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.article-stats-bar {
  display: flex;
  gap: 20px;
}

.article-stats-bar span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

/* === 文章目录（文章内） === */
.article-toc {
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 40px;
}

.article-toc h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}

.article-toc ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px;
}

.article-toc a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  padding: 4px 0;
  display: block;
  transition: color var(--transition-fast);
}

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

/* === 文章内容 === */
.article-content {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
}

.article-content .lead {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 32px;
  padding-left: 20px;
  border-left: 3px solid var(--color-primary);
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 20px;
  color: var(--color-text-secondary);
}

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  color: var(--color-accent);
}

.article-content ul,
.article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 8px;
  color: var(--color-text-secondary);
}

.article-content li strong {
  color: var(--color-text);
}

.article-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.article-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 24px;
  overflow-x: auto;
  position: relative;
}

.article-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-text);
}

.article-content blockquote {
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  margin-bottom: 24px;
}

.article-content blockquote p {
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

.article-content blockquote strong {
  color: var(--color-primary);
}

/* 文章总结 */
.article-summary {
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 40px 0;
}

.article-summary h3 {
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--color-primary);
}

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

/* 文章标签 */
.article-tags-section {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-tags-section h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}

.article-tags-section .article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-tags-section .article-tag {
  font-size: 0.8rem;
  padding: 4px 12px;
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-sm);
  color: var(--color-secondary);
  transition: all var(--transition-fast);
}

.article-tags-section .article-tag:hover {
  background: rgba(59, 130, 246, 0.12);
  border-color: var(--color-primary);
}

/* === 评论区域 === */
.comments-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.comments-section h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.comment-form {
  margin-bottom: 32px;
}

.comment-form textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
}

.comment-form textarea:focus {
  border-color: var(--color-primary);
}

.comment-form textarea::placeholder {
  color: var(--color-text-muted);
}

.comment-submit {
  margin-top: 12px;
  padding: 10px 24px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.comment-submit:hover {
  background: #2563eb;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.comment-item {
  display: flex;
  gap: 16px;
}

.comment-avatar {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}

.comment-body {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.comment-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.comment-author {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.comment-author em {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--color-primary);
  margin-left: 4px;
}

.comment-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.comment-body p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* === 文章侧边栏 === */
.article-sidebar {
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.toc-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.toc-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toc-link {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc-link:hover {
  color: var(--color-primary);
  background: rgba(59, 130, 246, 0.05);
}

.toc-link.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.05);
}

.related-articles {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.related-articles li {
  border-bottom: 1px solid var(--color-border);
}

.related-articles li:last-child {
  border-bottom: none;
}

.related-articles a {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  padding: 10px 0;
  line-height: 1.5;
  transition: color var(--transition-fast);
}

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

/* === 响应式 === */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .article-header .article-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .article-page {
    padding-top: 76px;
  }

  .article-header .article-title {
    font-size: 1.5rem;
  }

  .article-toc ul {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    grid-template-columns: 1fr;
  }

  .article-info {
    flex-direction: column;
    align-items: flex-start;
  }
}