/* ===================================================================
   云海互联 (OceanCloud.sbs) 深度文章排版样式表
   特点：易读性、SEO语义化标签优化、内部互联矩阵
   =================================================================== */

.article-page {
  padding: 40px 0 80px;
}

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb-separator {
  color: #475569;
}

/* 文章主体布局 */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

/* 主文章容器 */
.article-main {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--card-radius);
  padding: 40px 36px;
  backdrop-filter: blur(12px);
}

.article-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 28px;
  margin-bottom: 32px;
}

.article-badge-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.article-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-sky);
}

.article-badge.keyword {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}

.article-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

/* 文章正文排版 */
.article-content {
  font-size: 1.02rem;
  line-height: 1.85;
  color: #cbd5e1;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-content h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
  border-radius: 2px;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 28px 0 12px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.article-content li {
  line-height: 1.7;
}

.article-content blockquote {
  border-left: 4px solid var(--accent-sky);
  background: rgba(56, 189, 248, 0.08);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  font-style: normal;
  color: #e2e8f0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  background: rgba(6, 11, 23, 0.6);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.article-content th {
  background: rgba(14, 25, 46, 0.9);
  padding: 12px 16px;
  text-align: left;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-sky);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content td {
  padding: 12px 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.article-content a {
  color: var(--accent-sky);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  color: var(--accent-cyan);
}

/* 嵌入式呼吁卡片 (内嵌CTA) */
.article-cta-box {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 14px;
  padding: 26px 28px;
  margin: 36px 0;
  text-align: center;
}

.article-cta-box h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 8px;
}

.article-cta-box p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* 侧边栏 */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 90px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--card-radius);
  padding: 24px 20px;
  backdrop-filter: blur(10px);
}

.widget-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-article-item a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  transition: color var(--transition-fast);
}

.sidebar-article-item a:hover {
  color: var(--accent-cyan);
}

.sidebar-article-item span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.sidebar-cta-widget {
  background: linear-gradient(180deg, rgba(14, 34, 68, 0.9) 0%, rgba(10, 20, 42, 0.85) 100%);
  border: 1px solid #00f2fe;
  text-align: center;
}

.sidebar-cta-widget h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.sidebar-cta-widget p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}