/**
 * @file 文章内容样式 - 优化版
 * @author 前端川
 * @link www.cggg.cn
 * @description 文章正文样式，支持Markdown转换后的HTML
 */

.article-content {
  padding: 32px 40px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-primary);
  word-wrap: break-word;
  overflow-wrap: break-word;
  letter-spacing: 0.01em;
}

.article-content > *:first-child {
  margin-top: 0;
}

.article-content > *:last-child {
  margin-bottom: 0;
}

/* 段落样式 */
.article-content p {
  margin: 0 0 20px;
  text-align: justify;
  text-justify: inter-ideograph;
}

/* 标题样式 */
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
  margin: 32px 0 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-primary);
  position: relative;
}

.article-content h1:first-child,
.article-content h2:first-child,
.article-content h3:first-child {
  margin-top: 0;
}

.article-content h1 { 
  font-size: 28px; 
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-color);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.article-content h2 { 
  font-size: 24px; 
  margin-bottom: 16px; 
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.article-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 60px;
  height: 3px;
  background: var(--bg-gradient);
  border-radius: 2px;
}

.article-content h3 { 
  font-size: 20px; 
  margin-bottom: 14px;
  padding-left: 14px;
  border-left: 4px solid var(--primary-color);
}

.article-content h4 { 
  font-size: 18px; 
  margin-bottom: 12px;
  color: var(--primary-light);
}

.article-content h5 { 
  font-size: 16px; 
  margin-bottom: 10px; 
  color: var(--text-secondary); 
}

.article-content h6 { 
  font-size: 15px; 
  margin-bottom: 8px; 
  color: var(--text-muted); 
}

/* 列表样式 */
.article-content ul,
.article-content ol {
  margin: 0 0 20px;
  padding-left: 28px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article-content li > ul,
.article-content li > ol {
  margin: 8px 0 0;
  padding-left: 24px;
}

.article-content ul li::marker {
  color: var(--primary-color);
}

.article-content ol li::marker {
  color: var(--secondary-color);
  font-weight: 600;
}

/* 引用样式 */
.article-content blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--primary-color);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.08) 0%, rgba(249, 115, 22, 0.05) 100%);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
}

.article-content blockquote::before {
  content: '"';
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 80px;
  line-height: 1;
  color: var(--primary-color);
  opacity: 0.1;
  font-family: Georgia, serif;
  font-weight: bold;
}

.article-content blockquote p:last-child {
  margin-bottom: 0;
}

.article-content blockquote blockquote {
  margin: 16px 0;
  border-left-color: var(--secondary-color);
}

/* 行内代码 */
.article-content code {
  padding: 3px 8px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(14, 165, 233, 0.08) 100%);
  border-radius: var(--radius-sm);
  font-family: 'Fira Code', 'SF Mono', 'Monaco', 'Consolas', monospace;
  font-size: 0.88em;
  color: var(--primary-light);
  border: 1px solid rgba(14, 165, 233, 0.2);
  font-weight: 500;
}

/* 代码块 */
.article-content pre {
  margin: 24px 0;
  padding: 20px;
  background: linear-gradient(180deg, #0d1117 0%, #161b22 100%);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  border: 1px solid var(--border-color);
  position: relative;
  box-shadow: var(--shadow-md);
}

.article-content pre::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 20px 0 0 #eab308, 40px 0 0 #22c55e;
}

.article-content pre code {
  display: block;
  padding: 0;
  padding-top: 8px;
  background: transparent;
  color: #c9d1d9;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre;
  border: none;
  font-weight: normal;
}

/* 图片样式 */
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: 20px auto;
  display: block;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-normal);
}

.article-content img:hover {
  transform: scale(1.01);
}

/* 链接样式 */
.article-content a {
  color: var(--primary-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.article-content a:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

/* 表格样式 */
.article-content table {
  width: 100%;
  margin: 24px 0;
  border-collapse: collapse;
  font-size: 15px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-content th,
.article-content td {
  padding: 14px 18px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.article-content th {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  font-weight: 700;
  color: white;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.article-content td {
  color: var(--text-secondary);
  background: var(--bg-card);
}

.article-content tr:nth-child(even) td {
  background: rgba(30, 41, 59, 0.8);
}

.article-content tr:hover td {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* 分隔线 */
.article-content hr {
  margin: 32px 0;
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* 强调文本 */
.article-content strong {
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(249, 115, 22, 0.1) 100%);
  padding: 2px 6px;
  border-radius: 4px;
}

.article-content em {
  font-style: italic;
  color: var(--text-secondary);
}

.article-content del {
  text-decoration: line-through;
  color: var(--text-muted);
}

.article-content mark {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.4) 0%, rgba(249, 115, 22, 0.2) 100%);
  color: var(--text-primary);
  padding: 3px 8px;
  border-radius: 4px;
}

.article-content sup {
  font-size: 0.75em;
  vertical-align: super;
  color: var(--text-muted);
}

.article-content sub {
  font-size: 0.75em;
  vertical-align: sub;
  color: var(--text-muted);
}

/* 任务列表 */
.article-content .task-list-item {
  list-style: none;
  margin-left: -28px;
  padding-left: 28px;
  position: relative;
}

.article-content .task-list-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
}

.article-content .task-list-item.checked::before {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.article-content .task-list-item.checked::after {
  content: '✓';
  position: absolute;
  left: 3px;
  top: 6px;
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.article-content input[type="checkbox"] {
  margin-right: 10px;
  vertical-align: middle;
  accent-color: var(--primary-color);
}

/* 响应式适配 */
@media (max-width: 768px) {
  .article-content {
    padding: 24px 20px;
    font-size: 15px;
  }
  
  .article-content h1 { font-size: 24px; }
  .article-content h2 { font-size: 20px; }
  .article-content h3 { font-size: 18px; }
  .article-content h4 { font-size: 16px; }
  
  .article-content pre {
    padding: 16px;
    font-size: 13px;
  }
  
  .article-content pre::before {
    top: 10px;
    left: 12px;
  }
  
  .article-content table {
    font-size: 13px;
  }
  
  .article-content th,
  .article-content td {
    padding: 10px 12px;
  }
  
  .article-content blockquote {
    padding: 16px 18px;
  }
  
  .article-content img {
    margin: 16px auto;
  }
}