.topic-list-section{background-color:var(--bg-body);min-height:calc(100vh - 400px)}.topic-list-section .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:25px 30px;background:#fff!important;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);height:80px}.section-title{display:flex;align-items:center;gap:12px}.title-icon{width:32px;height:32px;color:var(--primary-color);flex-shrink:0}.section-title h2{font-size:26px;font-weight:700;color:var(--primary-color);margin:0}.search-container{display:flex;align-items:center;gap:0;border:2px solid #e0e0e0;border-radius:var(--radius-lg);overflow:hidden;transition:.3s}.search-container:focus-within{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(215,67,57,.1)}.search-input{padding:10px 20px;border:none;outline:0;font-size:14px;width:280px;background-color:transparent}.search-input::placeholder{color:var(--text-lighter)}.clear-button{padding:8px;background:0 0;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;color:#999;margin-right:4px}.clear-button:hover{color:var(--primary-color);background:rgba(215,67,57,.05);border-radius:50%}.clear-button svg{display:block}.search-button{padding:10px 20px;background:0 0;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;color:#999}.search-container:focus-within .search-button{color:var(--primary-color)}.search-button:hover{color:var(--primary-dark);background:rgba(215,67,57,.05)}.search-button svg circle,.search-button svg path{stroke:currentColor}.topics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-bottom:30px;background-color:#fff;padding:30px;border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.topic-card{background-color:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.08);transition:.3s;border:1px solid #f0f0f0;cursor:pointer}.topic-card:hover{transform:translateY(-5px);box-shadow:0 8px 20px rgba(0,0,0,.12);border-color:var(--primary-color)}.topic-image{position:relative;height:120px;overflow:hidden}.topic-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.topic-card:hover .topic-image img{transform:scale(1.05)}.topic-stats{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:12px 15px;background:linear-gradient(to top,rgba(0,0,0,.7),rgba(0,0,0,.4),transparent);color:#fff;font-size:13px}.stat-item{display:flex;align-items:center;gap:6px}.stat-item svg{flex-shrink:0}.stat-item svg circle,.stat-item svg path{stroke:currentColor}.topic-info{padding:10px 15px;height:36px}.topic-title{font-size:16px;font-weight:600;color:var(--text-primary);margin:0;line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.topic-card:hover .topic-title{color:var(--primary-color)}.pagination{display:flex;justify-content:center;align-items:center;gap:8px;padding:30px 0}.page-link{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 12px;font-size:14px;color:var(--text-primary);background-color:#fff;border:1px solid var(--bg-border);border-radius:var(--radius-sm);text-decoration:none;transition:.3s;cursor:pointer}.page-link:hover:not(.disabled){color:var(--primary-color);border-color:var(--primary-color)}.page-link.active{color:#fff;background-color:var(--primary-color);border-color:var(--primary-color)}.page-link.disabled{color:var(--text-lighter);background-color:var(--bg-hover);cursor:not-allowed}.page-ellipsis{padding:0 8px;color:var(--text-lighter)}@media (max-width:1440px){.topics-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:1200px){.topics-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:992px){.section-header{flex-direction:column;gap:20px;align-items:stretch}.section-title{justify-content:center}.search-container,.search-input{width:100%}}@media (max-width:768px){.topics-grid{grid-template-columns:1fr;gap:20px}.section-header{padding:20px}.section-title h2{font-size:22px}.title-icon{font-size:28px}.topic-image{height:200px}.topic-title{font-size:15px}}@media (max-width:576px){.topic-list-section{padding:20px 0 40px}.section-header{padding:15px;margin-bottom:20px}.topic-image{height:180px}.topic-stats{font-size:12px;padding:10px 12px}.stat-item svg{width:14px;height:14px}}