.taia-bubble{position:fixed;bottom:20px;right:20px;width:56px;height:56px;border-radius:50%;border:none;font-size:24px;color:#fff;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.2);z-index:99999;}
.taia-panel{position:fixed;bottom:86px;right:20px;width:320px;max-height:440px;background:#fff;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.2);display:flex;flex-direction:column;overflow:hidden;z-index:99999;font-family:sans-serif;}
.taia-header{padding:12px 16px;background:#2563eb;color:#fff;font-weight:600;}
.taia-messages{flex:1;padding:12px;overflow-y:auto;font-size:14px;}
.taia-msg{margin-bottom:8px;padding:8px 10px;border-radius:8px;max-width:85%;}
.taia-msg-user{margin-left:auto;background:#2563eb;color:#fff;}
.taia-msg-assistant{background:#f1f5f9;color:#0f172a;}
.taia-input{border:none;border-top:1px solid #e2e8f0;padding:10px 12px;font-size:14px;outline:none;}
.taia-gate{flex-direction:column;gap:8px;padding:12px;border-top:1px solid #e2e8f0;}
.taia-gate .taia-input{border:1px solid #e2e8f0;border-radius:6px;}
.taia-gate-msg{font-size:13px;color:#334155;}
.taia-gate-btn{background:#2563eb;color:#fff;border:none;border-radius:6px;padding:8px 12px;font-size:14px;cursor:pointer;}
.taia-gate-btn:disabled{opacity:.6;cursor:default;}
.taia-gate-status{font-size:12px;color:#64748b;min-height:14px;}