.exhibition-sidebar{width:280px;flex-shrink:0}.sidebar-title{font-size:18px;font-weight:600;color:#1f2937;margin-bottom:16px}.topic-card,.topic-icon{display:flex;align-items:center}.topic-card{gap:8px;padding:10px;border-radius:8px;border:1px solid #dadfe6;transition:background-color .2s;cursor:pointer;margin-bottom:8px}.topic-card:hover{background:#f9fafb}.topic-icon{width:40px;height:40px;justify-content:center;flex-shrink:0}.banner-hot-icon{width:32px;height:32px}.topic-icon-img{width:24px;height:24px;object-fit:contain}.topic-icon-emoji{font-size:20px}.topic-info{flex:1;min-width:0}.topic-title{font-size:18px;font-weight:600;color:#1f2937;margin:0 0 4px;line-height:1.3}.topic-link{color:inherit;text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s}.topic-link:hover{color:#3b82f6}.topic-count{font-size:12px;color:#6b7280}.hot-events-section{margin-top:24px}.hot-event-card{display:flex;border:1px solid #dadfe6;border-radius:16px;transition:background-color .2s;cursor:pointer;margin-bottom:8px}.hot-event-card:hover{background:#f9fafb}.hot-event-image{width:80px;height:130px;flex-shrink:0;border-top-left-radius:8px;border-bottom-left-radius:8px;overflow:hidden;position:relative}.event-poster{width:100%;height:100%;object-fit:cover}.hot-event-info{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0;padding:8px}.hot-event-title{font-weight:600;color:#1f2937;margin:0;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.hot-event-date,.hot-event-location{display:flex;align-items:center;gap:4px;font-size:11px;color:#6b7280;line-height:1.2}.date-icon,.location-icon{width:12px;height:12px;color:#9ca3af;flex-shrink:0}.hot-event-date span,.hot-event-location span{font-size:11px}@media screen and (max-width:1200px){.exhibition-sidebar{width:100%}}@media screen and (max-width:768px){.exhibition-sidebar{background:#fff;padding:0 12px;width:calc(100% - 24px)}}