.topic-list{display:flex;flex-direction:column;gap:10px}.no-topics{background:#fff;padding:60px 20px;border-radius:8px;text-align:center;color:#999;box-shadow:0 2px 4px #0000001a}.topic-item{background:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;overflow:hidden;transition:all .3s ease}.topic-item:hover{box-shadow:0 4px 12px #00000026}.topic-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;cursor:pointer;-webkit-user-select:none;user-select:none;gap:15px}.topic-header:hover{background:#f8f9fa}.topic-name{display:flex;align-items:center;gap:10px;font-weight:500;color:#333;font-family:Courier New,monospace;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}.expand-icon{color:#666;font-size:12px;flex-shrink:0}.topic-meta{display:flex;align-items:center;gap:10px;flex-shrink:0}.timestamp{color:#999;font-size:13px;font-family:Courier New,monospace}.json-badge{background:#2196f3;color:#fff;padding:3px 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