/**
 * BitzNet 原创出海技术专栏深度排版样式 (article.css)
 */

.article-page-body {
  background-color: #070A13;
  color: #E2E8F0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.75;
}

.article-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
}

/* 面包屑导航 */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #94A3B8;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: #00F0FF;
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumb-nav a:hover {
  text-decoration: underline;
  color: #38BDF8;
}

.breadcrumb-separator {
  color: #64748B;
}

/* 文章头部 */
.article-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.article-category-badge {
  display: inline-block;
  background: rgba(0, 240, 255, 0.15);
  color: #00F0FF;
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.article-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #F8FAFC;
  line-height: 1.35;
  margin-bottom: 1.25rem;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: #94A3B8;
  flex-wrap: wrap;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* 文章主体布局：正文 + 边栏目录 */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3.5rem;
  align-items: start;
}

.article-content {
  font-size: 1.05rem;
  color: #CBD5E1;
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #F1F5F9;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  scroll-margin-top: 100px;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #38BDF8;
  margin: 1.75rem 0 0.75rem;
  scroll-margin-top: 100px;
}

.article-content p {
  margin-bottom: 1.25rem;
  text-align: justify;
}

.article-content ul,
.article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

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

.article-content strong {
  color: #F8FAFC;
}

/* 提示卡片 */
.callout-box {
  background: rgba(15, 23, 42, 0.8);
  border-left: 4px solid #00F0FF;
  border-radius: 0 12px 12px 0;
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.callout-box.tip {
  border-left-color: #10B981;
}

.callout-box.warning {
  border-left-color: #F59E0B;
}

.callout-title {
  font-weight: 700;
  color: #F8FAFC;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 数据表格 */
.article-table-wrapper {
  overflow-x: auto;
  margin: 1.75rem 0;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  text-align: left;
}

.article-table th {
  background: rgba(30, 41, 59, 0.8);
  color: #00F0FF;
  padding: 0.85rem 1.2rem;
  font-weight: 600;
}

.article-table td {
  padding: 0.85rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: #CBD5E1;
}

.article-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* 代码区域 */
.code-block {
  background: #0B0F19;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 0.9rem;
  color: #38BDF8;
  overflow-x: auto;
  margin: 1.25rem 0;
}

/* 侧边栏 TOC */
.article-sidebar {
  position: sticky;
  top: 100px;
}

.article-toc {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 1.5rem;
  backdrop-filter: blur(16px);
}

.toc-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: #F8FAFC;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 0.65rem;
}

.toc-list a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s;
  display: block;
}

.toc-list a:hover {
  color: #00F0FF;
  padding-left: 4px;
}

/* 文章底部转化 CTA */
.article-cta-box {
  margin: 3.5rem 0;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(124, 58, 237, 0.15));
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 16px;
  padding: 2.25rem;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.5rem;
  color: #F8FAFC;
  margin-bottom: 0.75rem;
}

.article-cta-box p {
  color: #94A3B8;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.article-reg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #00F0FF, #3B82F6);
  color: #070A13;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border-radius: 10px;
  transition: all 0.3s;
}

.article-reg-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
}

/* 相关文章卡片 */
.related-articles {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #F8FAFC;
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.related-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  transform: translateY(-3px);
  background: rgba(15, 23, 42, 0.85);
}

.related-card h4 {
  font-size: 1.05rem;
  color: #F1F5F9;
  margin-bottom: 0.5rem;
}

.related-card p {
  font-size: 0.85rem;
  color: #94A3B8;
  margin-bottom: 1rem;
  flex: 1;
}

.related-link-text {
  font-size: 0.82rem;
  color: #00F0FF;
  font-weight: 600;
}

/* 移动端适配 */
@media (max-width: 960px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    margin-bottom: 2rem;
  }
}

@media (max-width: 640px) {
  .article-title {
    font-size: 1.65rem;
  }
  .article-container {
    padding: 5rem 1rem 3rem;
  }
}