/* ========================================
   博客内容页样式
   ======================================== */

/* 面包屑 */
.breadcrumb {
  margin-bottom: 0.75rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.breadcrumb-separator {
  display: inline-flex;
  align-items: center;
  color: hsl(var(--muted-foreground));
}

.breadcrumb-separator svg {
  width: 14px;
  height: 14px;
}

.breadcrumb-current {
  color: #222222;
  font-weight: 500;
}

/* ========================================
   文章主体
   ======================================== */
.article-container {
  max-width: 48rem;
  margin: 0 auto 4rem;
}

/* 文章头部 */
.article-header {
  text-align: center;
  margin-bottom: 2rem;
}

.article-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: hsl(var(--primary-foreground));
  background-color: hsl(var(--primary));
  border-radius: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.article-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  color: #222222;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .article-title {
    font-size: 2.5rem;
  }
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.article-author,
.article-date,
.article-views {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: hsl(var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar svg {
  width: 16px;
  height: 16px;
  color: hsl(var(--muted-foreground));
}

.article-date svg,
.article-views svg {
  width: 16px;
  height: 16px;
}

.meta-divider {
  color: hsl(var(--border));
}

/* 文章封面 */
.article-cover {
  border-radius: 0.5rem;
  overflow: hidden;
  margin-bottom: 2rem;
  aspect-ratio: 2 / 1;
}

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

/* 文章正文 */
.article-body {
  font-size: 1rem;
  line-height: 1.8;
  color: #222222;
}

.article-lead {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
}

.article-body h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: #222222;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  border-left: 4px solid hsl(var(--primary));
  background-color: hsl(var(--secondary) / 0.3);
  border-radius: 0 0.5rem 0.5rem 0;
}

.article-body blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: hsl(var(--muted-foreground));
}

/* 文章底部 */
.article-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid hsl(var(--border));
}

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

.tag-label {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.article-tag {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  background-color: hsl(var(--secondary));
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.article-tag:hover {
  color: hsl(var(--primary));
  background-color: hsl(var(--secondary) / 0.5);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-label {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.375rem;
  border: 1px solid hsl(var(--border));
  background-color: transparent;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: all 0.2s ease;
}

.share-btn:hover {
  border-color: hsl(var(--primary));
  color: hsl(var(--primary));
  background-color: hsl(var(--primary) / 0.1);
}

.share-btn svg {
  width: 18px;
  height: 18px;
}

/* ========================================
   相关文章
   ======================================== */
.related-articles {
  padding-top: 3rem;
  border-top: 1px solid hsl(var(--border));
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.related-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-radius: 0.5rem;
  overflow: hidden;
  background-color: rgba(248, 248, 248, 0.4);
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.related-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.related-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.related-content {
  padding: 1rem;
}

.related-category {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.related-title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  color: #222222;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

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

.related-date {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

/* 响应式 */
@media (max-width: 767px) {
  .article-meta {
    gap: 0.75rem;
  }

  .meta-divider {
    display: none;
  }

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