/* ==========================================================================
   ByWave (bywave.click) - 知识专栏与文章内页专用样式表
   极简无阻塞原生 CSS · 完美排版 · SEO 友好与高转化设计
   ========================================================================== */

/* 文章页头部 */
.article-header {
  padding: 40px 0 20px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.12);
  margin-bottom: 40px;
  background: linear-gradient(180deg, rgba(13, 21, 47, 0.5) 0%, rgba(7, 11, 25, 0) 100%);
}

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

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

.article-breadcrumb a:hover {
  text-decoration: underline;
}

.article-title {
  font-size: clamp(1.8rem, 3.8vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  color: #FFFFFF;
}

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

.article-info-bar span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 主容器布局：文章内容 + 右侧/底部导流卡片 */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  margin-bottom: 80px;
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(10px);
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #FFFFFF;
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #E2E8F0;
  margin: 26px 0 12px;
}

.article-content p {
  font-size: 1rem;
  color: #CBD5E1;
  line-height: 1.85;
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
  color: #CBD5E1;
  line-height: 1.8;
}

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

.article-content strong {
  color: #00F0FF;
  font-weight: 600;
}

/* 提示警示框 */
.callout {
  padding: 20px 24px;
  border-radius: var(--radius-md);
  margin: 28px 0;
  border-left: 4px solid var(--primary);
  background: rgba(0, 240, 255, 0.08);
}

.callout-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #00F0FF;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout p {
  margin-bottom: 0;
  font-size: 0.94rem;
  color: #E2E8F0;
}

/* 文章内的推荐引流卡片 */
.article-cta-box {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(0, 102, 255, 0.2) 100%);
  border: 1px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  margin: 40px 0;
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.15);
}

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

.article-cta-box p {
  color: #E2E8F0;
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto 20px;
}

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

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(8px);
}

.sidebar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-links {
  list-style: none;
}

.sidebar-links li {
  margin-bottom: 14px;
}

.sidebar-links a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  line-height: 1.5;
  transition: var(--transition);
}

.sidebar-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.sidebar-promo-card {
  background: linear-gradient(180deg, rgba(0, 240, 255, 0.14) 0%, rgba(13, 21, 47, 0.95) 100%);
  border: 1px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2);
}

.sidebar-promo-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.sidebar-promo-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* 底部前一篇/后一篇导航 */
.article-nav-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-box {
  background: rgba(13, 21, 47, 0.5);
  border: 1px solid var(--bg-card-border);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
}

.nav-box:hover {
  border-color: var(--primary);
  background: rgba(0, 240, 255, 0.05);
}

.nav-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.nav-target-title {
  font-size: 0.92rem;
  color: #FFFFFF;
  font-weight: 600;
  line-height: 1.4;
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-content {
    padding: 24px;
  }
  .article-nav-prev-next {
    grid-template-columns: 1fr;
  }
}