/* 系列导航页 /rag/、/agent/ 专用样式（独立文件，避免 style.css 缓存未更新） */

.series-page .post-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
}

.series-page-parent {
  font-size: 14px;
  margin: 0 0 12px;
}

.series-page-parent a {
  color: var(--accent);
  text-decoration: none;
}

.series-page-parent a:hover {
  text-decoration: underline;
}

.series-page-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.series-page-subtitle {
  margin-top: 12px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.series-page-intro {
  margin-top: 24px;
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-secondary);
}

.series-timeline {
  margin-top: 16px;
}

.series-phase {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.series-phase:first-child {
  margin-top: 0;
}

.series-card {
  display: flex;
  gap: 20px;
  padding: 24px;
  margin-bottom: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s ease;
  color: var(--text-primary);
  text-decoration: none;
}

.series-card:hover {
  color: var(--text-primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.series-card-index {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
}

.series-card-body {
  flex: 1;
  min-width: 0;
}

.series-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 8px;
}

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

.series-card-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.series-card time {
  font-size: 13px;
  color: var(--text-tertiary);
}

@media (max-width: 768px) {
  .series-card {
    flex-direction: column;
    gap: 12px;
  }

  .series-card-index {
    width: 40px;
    height: 40px;
  }
}