.cluster-pillar{max-width:var(--article-width);margin:0 auto;padding:2rem 0}.cluster-header{margin-bottom:2.5rem;padding-bottom:1.5rem;border-bottom:2px solid var(--border-light)}.cluster-badge{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--primary);background-color:var(--primary-light);padding:.2rem .75rem;border-radius:100px;margin-bottom:.75rem}.cluster-title{font-size:1.8rem;font-weight:700;line-height:1.35;color:var(--text);margin-bottom:.75rem}.cluster-description{font-size:1rem;line-height:1.75;color:var(--text-light);max-width:640px}.cluster-pillar-content{margin-bottom:2.5rem;padding:1.5rem 2rem;background-color:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border-light);font-size:.92rem;line-height:1.85;color:var(--text)}.cluster-pillar-content h3{font-size:1.05rem;font-weight:700;margin-top:1.5rem;margin-bottom:.75rem;color:var(--text)}.cluster-pillar-content p{margin-bottom:1rem}.cluster-pillar-content ul{margin-bottom:1rem;padding-left:1.25rem}.cluster-pillar-content li{margin-bottom:.4rem}.cluster-articles{margin-top:1.5rem}.cluster-section-title{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:1.25rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.cluster-article-list{display:flex;flex-direction:column;gap:1rem}.cluster-article-card{background-color:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border-light);overflow:hidden;transition:box-shadow var(--transition),transform var(--transition)}.cluster-article-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.cluster-card-link{display:flex;gap:1rem;align-items:flex-start;color:var(--text);text-decoration:none;padding:1rem}.cluster-card-thumb{flex-shrink:0;width:120px;height:68px;border-radius:var(--radius-sm);overflow:hidden;background-color:var(--border-light)}.cluster-card-thumb img{width:100%;height:100%;object-fit:cover}.cluster-card-body{flex:1;min-width:0}.cluster-card-title{font-size:.95rem;font-weight:600;line-height:1.45;color:var(--text);margin-bottom:.35rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.cluster-card-date{display:block;font-size:.75rem;color:var(--text-muted);margin-bottom:.35rem}.cluster-card-excerpt{font-size:.82rem;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.clusters-header{text-align:center;padding:2.5rem 0 2rem;max-width:640px;margin:0 auto 2rem}.clusters-page-title{font-size:1.9rem;font-weight:700;color:var(--text);margin-bottom:.75rem}.clusters-page-description{font-size:1rem;color:var(--text-light);line-height:1.7}.clusters-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem;padding-bottom:3rem}.cluster-term-card{display:block;background-color:var(--card-bg);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.5rem;text-decoration:none;color:var(--text);transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition)}.cluster-term-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--primary)}.cluster-term-title{font-size:1rem;font-weight:700;line-height:1.45;color:var(--text);margin-bottom:.6rem}.cluster-term-desc{font-size:.83rem;color:var(--text-light);line-height:1.65;margin-bottom:.75rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.cluster-term-count{display:inline-block;font-size:.72rem;font-weight:600;color:var(--primary);background-color:var(--primary-light);padding:.15rem .6rem;border-radius:100px}.article-cluster-link{margin-top:.75rem;display:flex;flex-wrap:wrap;gap:.5rem}.cluster-theme-tag{display:inline-flex;align-items:center;font-size:.78rem;font-weight:600;color:var(--accent);background-color:var(--accent-light);padding:.25rem .75rem;border-radius:100px;text-decoration:none;border:1px solid transparent;transition:background-color var(--transition),border-color var(--transition)}.cluster-theme-tag::before{content:"#";margin-right:.2em;opacity:.7}.cluster-theme-tag:hover{background-color:var(--accent);color:#fff;border-color:var(--accent)}.cluster-related{margin-top:2rem;padding:1.5rem;background-color:var(--primary-light);border-radius:var(--radius-md);border-left:3px solid var(--primary)}.cluster-related-title{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:1rem}.cluster-related-list{list-style:none;display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}.cluster-related-item a{font-size:.88rem;color:var(--text);text-decoration:none;display:block;padding:.4rem 0;border-bottom:1px solid var(--border-light);transition:color var(--transition)}.cluster-related-item a:hover{color:var(--primary)}.cluster-related-more{display:inline-flex;align-items:center;font-size:.83rem;font-weight:600;color:var(--primary);text-decoration:none;gap:.25rem}.cluster-related-more::after{content:"→"}.cluster-related-more:hover{color:var(--primary-dark)}@media(max-width:640px){.cluster-title{font-size:1.45rem}.cluster-card-link{flex-direction:column}.cluster-card-thumb{width:100%;height:160px}.clusters-page-title{font-size:1.5rem}.clusters-grid{grid-template-columns:1fr}}