.message-content{max-width:80%;word-wrap:break-word}.messages-container{height:400px;overflow-y:auto;padding:1rem;border:1px solid #f0f0f0;border-radius:8px}.message-input-container{border-top:1px solid #f0f0f0;padding:1rem;background-color:#fafafa}.channel-subscriber-item{padding:.75rem;border:1px solid #f0f0f0;border-radius:8px;margin-bottom:.5rem}.channel-item:hover,.conversation-item:hover{background-color:#f5f5f5;cursor:pointer}.unread-badge{background-color:#ff4d4f;color:#fff;border-radius:50%;padding:2px 6px;font-size:12px}.message-type-badge{font-size:10px;padding:2px 6px;border-radius:4px;margin-left:8px}.online-indicator{width:8px;height:8px;background-color:#52c41a;border-radius:50%;position:absolute;bottom:2px;right:2px;border:2px solid #fff}.message-timestamp{font-size:11px;color:#999;margin-top:4px}.attachment-preview{padding:8px;background-color:#e6f7ff;border-radius:4px;margin-top:8px;border-left:3px solid #1677ff}.channel-stats{display:flex;gap:16px;margin-top:8px}.channel-stats small{color:#666;font-size:12px}.message-actions{display:flex;gap:8px;margin-top:8px;align-items:center}.channel-header,.conversation-header{padding:1rem;border-bottom:1px solid #f0f0f0;background-color:#fafafa}.search-container{margin-bottom:1rem}.empty-state{text-align:center;padding:2rem;color:#999}.loading-spinner{display:flex;justify-content:center;align-items:center;height:200px}@media (max-width:768px){.message-content{max-width:95%}.messages-container{height:300px}.channel-stats{flex-direction:column;gap:4px}}