*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#333;height:100vh;overflow:hidden;-webkit-tap-highlight-color:transparent}#login-panel{background:#fff;padding:32px 24px;border-radius:16px;box-shadow:0 8px 32px #00000014;max-width:420px;width:92%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}#login-panel h2{text-align:center;font-size:22px;color:#1a1a1a;margin-bottom:4px}#login-panel .subtitle{text-align:center;font-size:13px;color:#999;margin-bottom:24px}.input-group{margin-bottom:16px}.input-group label{font-size:13px;font-weight:600;color:#555;margin-bottom:6px;display:block}.input-group label .optional{font-weight:400;color:#999;font-size:12px}.input-group input,.input-group textarea{width:100%;padding:11px 12px;border:1px solid #e0e0e0;background:#fafafa;color:#333;border-radius:8px;outline:none;font-size:15px;font-family:inherit;transition:border-color .2s,background .2s}.input-group input:focus,.input-group textarea:focus{border-color:#007aff;background:#fff}.input-group textarea{resize:none;font-size:12px;font-family:monospace;background:#f8f8f8;color:#888}.user-toggle{display:flex;gap:8px}.user-toggle button{flex:1;padding:11px 0;border:2px solid #e0e0e0;background:#fff;color:#666;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.user-toggle button.active{border-color:#007aff;background:#e8f4ff;color:#007aff}.join-btn{width:100%;padding:14px;background:#007aff;border:none;color:#fff;border-radius:10px;font-size:17px;font-weight:600;cursor:pointer;margin-top:8px;transition:background .2s;min-height:48px}.join-btn:hover{background:#0062cc}.join-btn:disabled{background:#bbb;cursor:not-allowed}.tips{margin-top:16px;padding:12px;background:#f0f7ff;border-radius:8px;font-size:12px;color:#4a90d9;line-height:1.6}#room-container{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000}#local-stream{width:100%;height:100%}#local-stream video{width:100%;height:100%;object-fit:cover}#local-stream.off{background:#1a1a1a;display:flex;align-items:center;justify-content:center}.camera-off-hint{display:flex;flex-direction:column;align-items:center;gap:12px;color:#666}.camera-off-hint .camera-off-icon{font-size:48px;opacity:.6}.camera-off-hint span{font-size:15px}#remote-stream{position:absolute;bottom:90px;right:12px;width:120px;height:90px;border-radius:10px;border:2px solid rgba(255,255,255,.3);overflow:hidden;background:#222;z-index:5}#remote-stream video{width:100%;height:100%;object-fit:cover}#remote-placeholder{position:absolute;bottom:90px;right:12px;width:120px;height:90px;border-radius:10px;border:2px solid rgba(255,255,255,.2);background:#0009;z-index:5;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#aaa;font-size:11px;gap:4px}#remote-placeholder .avatar{width:36px;height:36px;border-radius:50%;background:#34c759;color:#fff;font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center}#local-stream.pip{position:absolute;bottom:90px;right:12px;width:120px;height:90px;border-radius:10px;border:2px solid rgba(255,255,255,.3);overflow:hidden;background:#1a1a1a;z-index:5}#local-stream.pip video{width:100%;height:100%;object-fit:cover}#local-stream.pip .camera-off-hint .camera-off-icon{font-size:24px}#local-stream.pip .camera-off-hint span{font-size:10px}#local-stream.pip .camera-off-hint{gap:4px}#remote-stream.main{position:static;width:100%;height:100%;border-radius:0;border:none;z-index:auto}#remote-stream.main video{width:100%;height:100%;object-fit:cover}#remote-placeholder.main{position:static;width:100%;height:100%;border-radius:0;border:none;background:#1a1a1a;z-index:auto}#remote-placeholder.main .avatar{width:80px;height:80px;font-size:36px}#remote-placeholder.main span{font-size:18px}.user-panel{position:absolute;top:12px;right:12px;background:#0009;padding:10px 12px;border-radius:10px;color:#fff;z-index:10;max-width:180px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:12px}.user-panel .user-title{font-size:12px;font-weight:600;color:#aaa;padding-bottom:6px;margin-bottom:6px;border-bottom:1px solid rgba(255,255,255,.1)}.user-panel .user-item{padding:3px 0;font-size:12px;display:flex;align-items:center;gap:6px}.user-panel .user-item.me{color:#0f0}.user-panel .user-dot{width:6px;height:6px;border-radius:50%;display:inline-block}.user-panel .room-info{margin-top:8px;padding-top:6px;font-size:10px;border-top:1px solid rgba(255,255,255,.1);color:#999}#toolbar{position:absolute;bottom:0;left:0;right:0;height:72px;padding-bottom:env(safe-area-inset-bottom,0);background:#000000bf;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;gap:16px;z-index:20}#toolbar button{width:52px;height:52px;min-width:44px;min-height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:#ffffff14;color:#fff;font-size:12px;cursor:pointer;transition:all .2s;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px}#toolbar button:hover{background:#ffffff2e}#toolbar button.off{background:#ffffff0a;border-color:#ffffff1a;color:#888}#toolbar button.leave{width:auto;padding:0 18px;border-radius:24px;min-width:60px;min-height:44px}#toolbar button.end-room{background:#ff3b30bf;border-color:#ff3b3080;width:auto;padding:0 16px;border-radius:24px;min-width:74px;min-height:44px}#toolbar button.end-room:hover{background:#ff3b30}#toolbar .btn-icon{font-size:18px;line-height:1}#toolbar .btn-label{font-size:9px}.toast{position:absolute;top:70px;left:50%;transform:translate(-50%);background:#000000bf;color:#fff;padding:8px 20px;border-radius:20px;font-size:13px;z-index:30;animation:toastFade 2.5s ease;pointer-events:none;white-space:nowrap}@keyframes toastFade{0%{opacity:0;transform:translate(-50%) translateY(-8px)}15%{opacity:1;transform:translate(-50%) translateY(0)}75%{opacity:1}to{opacity:0}}@media (min-width: 600px){#remote-stream:not(.main),#remote-placeholder:not(.main){bottom:100px;right:20px;width:240px;height:180px}#local-stream.pip{bottom:100px;right:20px;width:240px;height:180px}.user-panel{top:20px;right:20px;font-size:13px;max-width:220px}#toolbar{gap:24px}#toolbar button{width:48px;height:48px}#toolbar .btn-icon{font-size:16px}}