:root{--bg:#f6f7fb;--panel:#fff;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--primary:#12b981;--danger:#ef4444;--bubble-agent:#e9f8f2;--bubble-customer:#fff;--shadow:0 12px 28px #00000014;--radius:12px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{color:var(--text);background:var(--bg);margin:0;font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#root{min-height:100svh}.btn{border:1px solid var(--border);background:var(--panel);cursor:pointer;color:var(--text);white-space:nowrap;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:8px 12px;line-height:1;display:inline-flex}.btnPrimary{background:var(--primary);color:#fff;border-color:#0000}.btnGhost{color:var(--muted);background:0 0;border-color:#0000;padding:6px 8px}.btnDanger{background:var(--danger);color:#fff;border-color:#0000}.btn:disabled{opacity:.6;cursor:not-allowed}.input{border:1px solid var(--border);background:var(--panel);box-sizing:border-box;border-radius:10px;width:100%;padding:10px 12px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.row{align-items:center;gap:10px;display:flex}.col{flex-direction:column;gap:10px;display:flex}.muted{color:var(--muted)}.appShell{box-sizing:border-box;grid-template-columns:280px 1fr 320px;gap:12px;height:100svh;min-height:0;padding:12px;display:grid}.panel{flex-direction:column;min-height:0;display:flex;overflow:hidden}.panelHeader{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;display:flex}.panelBody{padding:12px 14px;overflow:auto}.convList{flex-direction:column;gap:8px;display:flex}.convItem{border:1px solid var(--border);cursor:pointer;background:var(--panel);border-radius:12px;align-items:center;gap:10px;padding:10px;display:flex}.convItemActive{background:#12b98114;border-color:#12b98159}.avatar{background:#d1d5db;border-radius:999px;flex:none;width:36px;height:36px}.convMain{flex-direction:column;flex:auto;gap:4px;min-width:0;display:flex}.convTitle{justify-content:space-between;align-items:center;gap:10px;font-weight:600;display:flex}.ellipsis{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.dot{background:var(--danger);border-radius:999px;width:10px;height:10px}.badge{background:var(--danger);color:#fff;border-radius:999px;padding:2px 7px;font-size:12px;line-height:18px}.chatWrap{flex-direction:column;flex:auto;min-height:0;display:flex}.messages{flex-direction:column;flex:auto;gap:10px;min-height:0;padding:12px 14px;display:flex;overflow:auto}.msgRow{gap:8px;display:flex}.msgRowAgent{justify-content:flex-end}.bubble{border:1px solid var(--border);background:var(--bubble-customer);border-radius:14px;max-width:min(560px,78%);padding:10px 12px}.bubbleAgent{background:var(--bubble-agent)}.bubbleMedia{object-fit:contain;border-radius:10px;width:100%;max-width:100%;max-height:320px;display:block}.composer{border-top:1px solid var(--border);box-sizing:border-box;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;display:flex}.textarea{resize:none;min-height:42px;max-height:120px;line-height:1.4}.composer .input{flex:200px;width:auto;min-width:0}.composer .btnPrimary{min-width:64px}.fileBtn{width:38px;height:38px;padding:0;position:relative;overflow:hidden}.fileInput{opacity:0;cursor:pointer;position:absolute;inset:0}.mobileShell{flex-direction:column;height:100svh;display:flex}.mobileHeader{border-bottom:1px solid var(--border);background:var(--panel);justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;display:flex}.mobileBody{flex-direction:column;flex:auto;gap:10px;padding:12px 14px;display:flex;overflow:auto}.uploadStatus{color:var(--text);white-space:nowrap;background:#e5e7eb;border-radius:999px;align-self:center;padding:6px 12px;font-size:12px}.ready{color:#4b5563;background:#6b728026}.uploading{color:#1d4ed8;background:#3b82f626}.success{color:#047857;background:#10b98126}.error{color:#b91c1c;background:#ef444426}.modalMask{z-index:20;background:#0f172a73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modalCard{background:var(--panel);border:1px solid var(--border);width:min(420px,100%);box-shadow:var(--shadow);border-radius:14px;flex-direction:column;gap:12px;padding:18px;display:flex}.modalTitle{font-size:16px;font-weight:600}.modalActions{justify-content:flex-end;gap:10px;display:flex}