/* ==========================================================================
   IPLCSub (iplcsub.cyou) - 文章内页专属纯原生样式表
   规范：纯原生 CSS · 零外部重型库 · 极致可读性与 SEO 友好排版
   ========================================================================== */

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

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.25);
}

.breadcrumb-current {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* 文章头部 */
.article-header {
  border-bottom: 1px solid rgba(56, 189, 248, 0.16);
  padding-bottom: 28px;
  margin-bottom: 36px;
}

.article-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-category {
  background: rgba(0, 242, 254, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 242, 254, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
}

.article-main-title {
  font-size: clamp(1.9rem, 3.8vw, 2.7rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.article-info-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.86rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

/* 文章正文排版系统 */
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #e2e8f0;
}

.article-body h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: #ffffff;
  margin: 44px 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.18);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 24px;
  background: var(--primary);
  border-radius: 3px;
}

.article-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 32px 0 16px;
}

.article-body p {
  margin-bottom: 22px;
  color: #cbd5e1;
}

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

.article-body ul, 
.article-body ol {
  margin: 0 0 26px 24px;
  color: #cbd5e1;
}

.article-body li {
  margin-bottom: 10px;
  line-height: 1.75;
}

.article-body blockquote {
  background: rgba(14, 25, 48, 0.7);
  border-left: 4px solid var(--primary);
  padding: 18px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0;
  color: #e2e8f0;
  font-style: italic;
}

/* 数据对比表格 */
.table-responsive {
  overflow-x: auto;
  margin: 30px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  background: var(--bg-card);
}

.article-table th {
  background: rgba(16, 28, 58, 0.85);
  color: #ffffff;
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-glow);
}

.article-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
}

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

/* 提示卡片 */
.callout-box {
  background: rgba(13, 20, 38, 0.8);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin: 30px 0;
}

.callout-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 正文内置 CTA 转化转化横幅 */
.article-cta-box {
  background: linear-gradient(135deg, rgba(16, 28, 58, 0.92) 0%, rgba(13, 20, 38, 0.95) 100%);
  border: 1.5px solid var(--border-featured);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  margin: 46px 0;
  text-align: center;
  box-shadow: var(--shadow-glow);
}

.article-cta-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-cta-desc {
  font-size: 0.96rem;
  color: var(--text-sub);
  max-width: 680px;
  margin: 0 auto 22px;
}

/* 标签云 */
.article-tags-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 40px 0 30px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.tag-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
}

.article-keyword-tag {
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.22);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  text-decoration: none;
  transition: var(--transition);
}

.article-keyword-tag:hover {
  background: rgba(0, 242, 254, 0.2);
  color: var(--primary);
  border-color: var(--primary);
}

/* 上下篇导航 */
.article-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 36px 0 50px;
}

.page-nav-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--transition);
}

.page-nav-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.page-nav-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
}

.page-nav-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
}

.page-nav-card:hover .page-nav-title {
  color: var(--primary);
}

/* 相关推荐文章网格 */
.related-posts-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.related-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .article-pagination {
    grid-template-columns: 1fr;
  }
}