/* 文章排版样式 */
.article-container {
  display: flex;
  gap: 40px;
  margin-top: 40px;
}

.article-content {
  flex: 1;
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.article-sidebar {
  width: 300px;
  flex-shrink: 0;
}

.article-header {
  margin-bottom: 30px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
}

.article-header h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.article-body h2 {
  font-size: 1.8rem;
  margin: 40px 0 20px;
  color: var(--color-text);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.article-body h3 {
  font-size: 1.4rem;
  margin: 24px 0 16px;
}

.article-body p {
  margin-bottom: 16px;
  line-height: 1.8;
}

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

.article-body li {
  margin-bottom: 8px;
}

.article-body ul li {
  list-style-type: disc;
}

.article-body ol li {
  list-style-type: decimal;
}

.article-body img {
  border-radius: 8px;
  margin: 24px 0;
  border: 1px solid #eee;
}

.article-body strong {
  color: var(--color-text);
  font-weight: 600;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.article-body th, .article-body td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.article-body th {
  background-color: var(--color-accent);
  color: #00695c;
}

/* 粘性目录 */
.toc {
  position: sticky;
  top: 90px;
  background: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.toc h3 {
  margin-bottom: 16px;
  font-size: 1.2rem;
  border-bottom: 1px solid #eee;
  padding-bottom: 10px;
}

.toc ul {
  padding-left: 0;
}

.toc li {
  margin-bottom: 10px;
}

.toc a {
  color: var(--color-text-light);
  font-size: 0.95rem;
  display: block;
  padding: 4px 8px;
  border-radius: 6px;
}

.toc a:hover, .toc a.active {
  background-color: var(--color-bg);
  color: var(--color-main);
}

.toc-h3 {
  padding-left: 16px !important;
  font-size: 0.85rem !important;
}

/* 上下篇导航 */
.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.post-nav a {
  display: block;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  width: 48%;
}

.post-nav a:hover {
  background-color: var(--color-bg);
}

.post-nav .nav-label {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.post-nav .nav-title {
  font-weight: 600;
}