/* article.css — 文章详情排版（知识库/新闻页加载） */

/* === Article Header === */
.article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 16px;
}

.article-meta {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.article-meta span {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 4px;
}

/* === Article Body === */
.article-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text);
  margin: 40px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text);
  margin: 28px 0 12px;
}

.article-body p {
  margin-bottom: 16px;
  text-align: justify;
}

.article-body ul,
.article-body ol {
  margin: 16px 0 24px;
  padding-left: 28px;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 8px;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 8px;
}

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

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

.article-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--color-white);
  font-style: italic;
  color: var(--color-text-secondary);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-bg);
  padding: 2px 6px;
  color: var(--color-primary);
}

.article-body pre {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
}

.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* === Article Tags === */
.article-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-tags-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.tag-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-item {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-secondary);
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

.tag-item:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* === Related Articles === */
.related-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.related-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--color-text);
}

.related-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 16px;
}

.related-item {
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 calc(50% - 8px);
  -ms-flex: 1 1 calc(50% - 8px);
  flex: 1 1 calc(50% - 8px);
  min-width: 240px;
  padding: 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

.related-item:hover {
  border-color: var(--color-primary);
}

.related-item-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.related-item:hover .related-item-title {
  color: var(--color-primary);
}

.related-item-summary {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* === Article Pagination === */
.article-pagination {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-pagination a {
  font-size: 14px;
  color: var(--color-primary);
  max-width: 45%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

/* === Sidebar === */
.sidebar-section {
  margin-bottom: 32px;
}

.sidebar-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 10px;
}

.sidebar-list a {
  font-size: 14px;
  color: var(--color-text);
  display: block;
  padding: 4px 0;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-list a:hover {
  color: var(--color-primary);
  padding-left: 8px;
}

/* === Two Column Layout === */
.content-with-sidebar {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  gap: 48px;
}

.content-main {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
  min-width: 0;
}

.content-sidebar {
  -webkit-box-flex: 0;
  -webkit-flex: 0 0 300px;
  -ms-flex: 0 0 300px;
  flex: 0 0 300px;
}

/* === Responsive === */
@media (max-width: 1023px) {
  .content-with-sidebar {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  .content-sidebar {
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
  }
}

@media (max-width: 767px) {
  .article-title { font-size: 22px; }
  .related-item { min-width: 100%; }
}