/* ==========================================================================
   云海互联 (oceancloud.mom) - 专栏文章专属样式表
   极致阅读体验 · SEO友好排版 · 响应式代码与表格
   ========================================================================== */

.article-header {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 40px;
  position: relative;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-nav a:hover {
  color: var(--accent-cyan);
}

.breadcrumb-separator {
  color: var(--text-dim);
}

.article-main-title {
  font-size: clamp(1.9rem, 3.8vw, 2.7rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding-bottom: 80px;
}

/* 文章正文排版 */
.article-content {
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-content h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
  margin: 44px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
  position: relative;
}

.article-content h2::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--accent-cyan);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 32px 0 16px;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content strong {
  color: #ffffff;
  font-weight: 700;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
}

.article-content li {
  margin-bottom: 10px;
}

/* 高亮引言框与重点提示 */
.article-callout {
  background: rgba(14, 34, 68, 0.75);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 28px 0;
}

.article-callout.tip {
  border-left-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.article-callout.warning {
  border-left-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.08);
}

.article-callout-title {
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 表格样式 */
.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

.article-table th {
  background: rgba(14, 34, 68, 0.9);
  padding: 14px 18px;
  color: var(--accent-sky);
  border-bottom: 1px solid var(--border-subtle);
  font-weight: 700;
}

.article-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: #e2e8f0;
}

.article-table tr:hover td {
  background: rgba(56, 189, 248, 0.05);
}

/* 代码块 */
.code-block {
  background: #040c1a;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #38bdf8;
  overflow-x: auto;
  margin: 24px 0;
  line-height: 1.6;
}

/* 文章内置 CTA 横幅 */
.article-inpage-cta {
  background: linear-gradient(135deg, rgba(14, 38, 77, 0.88), rgba(10, 24, 48, 0.95));
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  margin: 40px 0;
  text-align: center;
}

.article-inpage-cta h3 {
  font-size: 1.4rem;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-inpage-cta p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

/* 侧边栏 */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
}

.toc-list a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
  display: block;
  line-height: 1.4;
}

.toc-list a:hover {
  color: var(--accent-cyan);
  transform: translateX(3px);
}

.related-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.related-item a {
  display: block;
  text-decoration: none;
}

.related-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #e2e8f0;
  line-height: 1.45;
  transition: var(--transition);
}

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

.related-date {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 4px;
}

@media (max-width: 992px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    order: 2;
  }
}