/* Blog Post 详情页专用样式 */

/* 页面整体布局 */
.blog-post-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.blog-post-article {
  background: var(--bg-white, #ffffff);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  border: 1px solid var(--border-gray, #e5e7eb);
}

/* 文章头部 */
.blog-post-header {
  background: linear-gradient(135deg, var(--primary-blue, #2563eb), var(--secondary-blue, #1e40af));
  color: white;
  padding: 3rem 3rem 2rem 3rem;
  text-align: center;
}

.blog-post-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 1.5rem 0;
  line-height: 1.2;
}

.blog-post-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  font-size: 0.9rem;
  opacity: 0.9;
}

.blog-post-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Markdown 内容样式 */
.markdown-content {
  padding: 3rem;
  line-height: 1.8;
  font-size: 1.1rem;
  color: var(--text-primary, #1f2937);
}

.loading {
  text-align: center;
  color: var(--text-muted, #9ca3af);
  font-style: italic;
}

/* Markdown 元素样式 */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  color: var(--text-primary, #1f2937);
  font-weight: 600;
  margin: 2rem 0 1rem 0;
  line-height: 1.3;
}

.markdown-content h1 {
  font-size: 2.2rem;
  border-bottom: 3px solid var(--primary-blue, #2563eb);
  padding-bottom: 0.5rem;
}

.markdown-content h2 {
  font-size: 1.8rem;
  border-bottom: 2px solid var(--light-blue, #dbeafe);
  padding-bottom: 0.3rem;
}

.markdown-content h3 {
  font-size: 1.5rem;
  color: var(--primary-blue, #2563eb);
}

.markdown-content h4 {
  font-size: 1.3rem;
}

.markdown-content p {
  margin: 1.5rem 0;
  text-align: justify;
}

.markdown-content ul,
.markdown-content ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.markdown-content li {
  margin: 0.5rem 0;
}

.markdown-content blockquote {
  border-left: 4px solid var(--primary-blue, #2563eb);
  background: var(--bg-gray-50, #f9fafb);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-secondary, #6b7280);
}

.markdown-content code {
  background: var(--bg-gray-100, #f3f4f6);
  padding: 0.2rem 0.4rem;
  border-radius: 0.3rem;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--primary-blue, #2563eb);
}

.markdown-content pre {
  background: #2d3748;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 2rem 0;
  line-height: 1.5;
}

.markdown-content pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: 0.9rem;
}

/* 图像样式 - 重要：支持Markdown图像 */
.markdown-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin: 2rem auto;
  display: block;
  border: 1px solid var(--border-gray, #e5e7eb);
}

.markdown-content figure {
  margin: 2rem 0;
  text-align: center;
}

.markdown-content figcaption {
  font-size: 0.9rem;
  color: var(--text-muted, #9ca3af);
  font-style: italic;
  margin-top: 0.5rem;
}

/* 表格样式 */
.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--bg-white, #ffffff);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.markdown-content th,
.markdown-content td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-gray, #e5e7eb);
}

.markdown-content th {
  background: var(--bg-gray-50, #f9fafb);
  font-weight: 600;
  color: var(--text-primary, #1f2937);
}

.markdown-content tr:hover {
  background: var(--bg-gray-50, #f9fafb);
}

/* 链接样式 */
.markdown-content a {
  color: var(--primary-blue, #2563eb);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

.markdown-content a:hover {
  color: var(--secondary-blue, #1e40af);
  border-bottom-color: var(--secondary-blue, #1e40af);
}

/* 分隔线样式 */
.markdown-content hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-gray, #e5e7eb), transparent);
  margin: 3rem 0;
}

/* 文章底部 */
.blog-post-footer {
  background: var(--bg-gray-50, #f9fafb);
  padding: 2rem 3rem;
  border-top: 1px solid var(--border-gray, #e5e7eb);
}

.post-navigation {
  text-align: center;
}

.blog-back-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--primary-blue, #2563eb);
  color: white;
  text-decoration: none;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid var(--primary-blue, #2563eb);
}

.blog-back-button:hover {
  background: var(--secondary-blue, #1e40af);
  border-color: var(--secondary-blue, #1e40af);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* Skeleton Loading Styles */
.title-skeleton,
.meta-skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.2) 25%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0.2) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: 0.25rem;
}

.title-skeleton {
  height: 2.5rem;
  width: 60%;
  margin: 0 auto;
}

.meta-skeleton {
  height: 1rem;
  width: 4rem;
}

.content-loading {
  padding: 3rem;
}

.loading-skeleton {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skeleton-line {
  height: 1rem;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: 0.25rem;
}

.skeleton-line.short {
  width: 70%;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Hide loading content when content is loaded */
.markdown-content.loaded .content-loading {
  display: none;
}

.blog-post-header.loaded .title-skeleton,
.blog-post-header.loaded .meta-skeleton {
  display: none;
}

/* ==================== 从HTML提取的内置样式 ==================== */

/* Blog Post Section Card - 从blog-post.html提取 */
.blog-post-section.card {
  background: var(--bg-primary, #fff);
  border-radius: 1.2rem;
  box-shadow: 0 4px 24px 0 rgba(44,62,80,0.10);
  padding: 2.5rem 2.5rem 2rem 2.5rem;
  max-width: 900px;
  margin: 2.5rem auto;
  font-family: 'Inter', 'JetBrains Mono', 'Microsoft YaHei', Arial, sans-serif;
}

.blog-post-section .blog-post-header {
  border-bottom: 1px solid var(--primary-color, #3498db);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
}

.blog-post-section .section-title {
  font-size: 2rem;
  color: var(--primary-color, #3498db);
  margin-bottom: 0.5rem;
}

.blog-post-section .post-meta {
  color: var(--text-muted, #888);
  font-size: 1rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.blog-post-section .markdown-container {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-main, #222);
  margin-top: 1.5rem;
}

@media (max-width: 600px) {
  .blog-post-section.card {
    padding: 1.2rem 0.5rem;
  }
  
  .blog-post-section .section-title {
    font-size: 1.3rem;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .blog-post-container {
    padding: 1rem;
  }
  
  .blog-post-header {
    padding: 2rem 1.5rem;
  }
  
  .blog-post-title {
    font-size: 2rem;
  }
  
  .blog-post-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .markdown-content {
    padding: 2rem 1.5rem;
    font-size: 1rem;
  }
  
  .blog-post-footer {
    padding: 1.5rem;
  }
  
  .markdown-content h1 {
    font-size: 1.8rem;
  }
  
  .markdown-content h2 {
    font-size: 1.5rem;
  }
  
  .markdown-content h3 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .blog-post-header {
    padding: 1.5rem 1rem;
  }
  
  .blog-post-title {
    font-size: 1.75rem;
  }
  
  .markdown-content {
    padding: 1.5rem 1rem;
  }
  
  .blog-post-footer {
    padding: 1rem;
  }
}

/* CSS变量定义（如果没有全局定义的话） */
:root {
  --primary-blue: #2563eb;
  --secondary-blue: #1e40af;
  --light-blue: #dbeafe;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --bg-white: #ffffff;
  --bg-gray-50: #f9fafb;
  --bg-gray-100: #f3f4f6;
  --border-gray: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}