html,body,#root{height:100%;margin:0;background:#f0f2f5}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:linear-gradient(135deg,#1677ff,#0958d9);color:#fff;height:60px;box-shadow:0 2px 8px #0015291f}.app-header h1{margin:0;font-size:18px;font-weight:600;display:flex;align-items:center;gap:8px}.app-header .header-actions{display:flex;gap:12px;align-items:center}.app-content{flex:1;padding:16px;display:grid;grid-template-columns:1fr 340px;gap:16px;max-width:1400px;width:100%;margin:0 auto;box-sizing:border-box}@media (max-width: 900px){.app-content{grid-template-columns:1fr}}.video-card .video-wrap{position:relative;background:#000;border-radius:8px;overflow:hidden;aspect-ratio:16 / 9;display:flex;align-items:center;justify-content:center}.video-card .video-wrap video{width:100%;height:100%;object-fit:contain;background:#000}.video-card .video-overlay{position:absolute;top:12px;left:12px;background:#0000008c;color:#fff;padding:4px 10px;border-radius:6px;font-size:12px;display:flex;align-items:center;gap:6px}.video-card .video-empty{color:#ffffffb3;font-size:16px;text-align:center;padding:24px}.toolbar{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap;align-items:center}.chat-card{display:flex;flex-direction:column}.chat-card .chat-list{flex:1;min-height:260px;max-height:420px;overflow-y:auto;padding:8px 4px}.chat-card .chat-msg{margin-bottom:10px;word-break:break-word}.chat-card .chat-msg .meta{font-size:12px;color:#8c8c8c;margin-bottom:2px}.chat-card .chat-msg .meta .role-host{color:#1677ff;font-weight:600;margin-left:6px}.chat-card .chat-msg.system .bubble{background:#fafafa;color:#8c8c8c;font-style:italic;font-size:13px;padding:4px 10px;border-radius:6px}.chat-card .chat-msg .bubble{background:#f0f5ff;color:#1f1f1f;padding:8px 12px;border-radius:8px;display:inline-block;max-width:100%}.chat-card .chat-msg.self .bubble{background:#1677ff;color:#fff}.chat-card .chat-input{display:flex;gap:8px;margin-top:8px}.chat-card .chat-input .ant-input{flex:1}.viewer-row{display:flex;align-items:center;justify-content:space-between;padding:6px 4px}.viewer-row .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#52c41a;margin-right:6px}.join-card{max-width:420px;margin:80px auto}.tag-host{background:#1677ff;color:#fff;font-size:12px;padding:1px 6px;border-radius:4px;margin-left:6px}.empty-block{padding:32px 0;text-align:center;color:#8c8c8c}.copy-link{cursor:pointer;color:#1677ff}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;border-radius:12px;font-size:12px}.status-badge.connected{background:#f6ffed;color:#389e0d;border:1px solid #b7eb8f}.status-badge.connecting{background:#fffbe6;color:#d48806;border:1px solid #ffe58f}.status-badge.disconnected{background:#fff1f0;color:#cf1322;border:1px solid #ffa39e}.status-badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}