.series-section{margin-bottom:var(--spacing-2xl)}.series-section__title{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg)}.series-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:var(--spacing-md)}.series-card{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-lg);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:.5rem;text-decoration:none;color:inherit;transition:all var(--transition-base)}.series-card:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.series-card__icon{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:.5rem;background:rgba(68,149,246,.1);color:var(--accent-primary)}.series-card__icon svg{width:20px;height:20px}.series-card__body{flex:1;min-width:0}.series-card__title{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0 0 4px;line-height:1.3}.series-card__desc{font-size:.8125rem;color:var(--text-secondary);margin:0 0 8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.series-card__count{font-size:.75rem;color:var(--text-muted)}.series-posts-section{margin-top:var(--spacing-xl)}.series-detail-header{display:flex;align-items:flex-start;gap:var(--spacing-lg);margin-bottom:var(--spacing-2xl)}.series-detail-header__icon{flex-shrink:0;width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:.75rem;background:rgba(68,149,246,.12);color:var(--accent-primary)}.series-detail-header__icon svg{width:28px;height:28px}.series-detail-header__text{flex:1}.series-detail-breadcrumb{font-size:.8125rem;color:var(--text-muted);margin-bottom:var(--spacing-xs)}.series-detail-breadcrumb a{color:var(--text-muted);text-decoration:none}.series-detail-breadcrumb a:hover{color:var(--accent-primary)}.series-detail-breadcrumb__sep{margin:0 .375rem;opacity:.5}.series-detail-header__title{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;color:var(--text-primary);margin:0 0 var(--spacing-xs);line-height:1.2}.series-detail-header__desc{font-size:.9375rem;color:var(--text-secondary);margin:0 0 var(--spacing-sm);line-height:1.6}.series-detail-header__count{font-size:.8125rem;color:var(--text-muted)}.series-article-list{display:flex;flex-direction:column;gap:2px}.series-article{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-lg);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:.5rem;text-decoration:none;color:inherit;transition:all var(--transition-base)}.series-article:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-sm)}.series-article__num{flex-shrink:0;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(68,149,246,.1);color:var(--accent-primary);font-size:.8125rem;font-weight:700;font-variant-numeric:tabular-nums}.series-article__body{flex:1;min-width:0}.series-article__title{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0 0 4px;line-height:1.4}.series-article__desc{font-size:.8125rem;color:var(--text-secondary);margin:0 0 6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.series-article__meta{display:flex;align-items:center;gap:var(--spacing-sm);font-size:.75rem;color:var(--text-muted)}.series-article__reading::before{content:"\00b7";margin-right:var(--spacing-xs)}.series-article__arrow{flex-shrink:0;width:18px;height:18px;color:var(--text-muted);opacity:0;transition:opacity var(--transition-base),transform var(--transition-base)}.series-article:hover .series-article__arrow{opacity:1;transform:translateX(2px)}.series-empty{text-align:center;padding:var(--spacing-2xl)var(--spacing-lg);color:var(--text-muted);font-size:.9375rem}.series-related{margin-top:var(--spacing-2xl);padding-top:var(--spacing-xl);border-top:1px solid var(--border-color)}.series-related__links{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.series-related__link{display:inline-block;padding:.375rem .875rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:2rem;font-size:.8125rem;color:var(--text-secondary);text-decoration:none;transition:all var(--transition-base)}.series-related__link:hover{border-color:var(--accent-primary);color:var(--accent-primary)}@media(max-width:640px){.series-grid{grid-template-columns:1fr}.series-detail-header{flex-direction:column;gap:var(--spacing-md)}.series-article{padding:var(--spacing-md)}.series-article__desc{display:none}}