.chuyen-muc-container{background-color:#f8f9fa;padding:20px;color:#343a40}.title{font-size:28px;font-weight:700;color:#212529;margin-bottom:10px}.divider{border:0;border-top:2px solid #dee2e6;margin-bottom:20px}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.category-card{background-color:#fff;color:#495057;padding:20px;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.1);transition:transform .2s ease-in-out,box-shadow .2s ease-in-out}.category-card:hover{transform:translateY(-5px);box-shadow:0 6px 16px rgba(0,0,0,.2)}.category-link{font-size:20px;font-weight:700;color:#007bff;text-decoration:none}.category-link:hover{text-decoration:underline}.category-info{font-size:14px;margin-top:10px;color:#6c757d}.info-value{font-weight:700;color:#212529}