*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#app{height:100vh}.staff-page{display:flex;flex-direction:column;height:100vh;background:#f2f4f7}.staff-head{padding:12px 16px;background:#1f6f43;color:#fff;font-size:.95rem;font-weight:600}.staff-center{flex:1;display:flex;align-items:center;justify-content:center}.spinner{width:28px;height:28px;border:3px solid #d0d7de;border-top-color:#1f6f43;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.staff-auth{padding:24px 20px}.staff-auth-hint{font-size:.82rem;color:#666;margin-bottom:16px;line-height:1.6}.staff-input-field{width:100%;padding:10px 12px;margin-bottom:12px;border:1px solid #d0d7de;border-radius:8px;font-size:.9rem}.staff-code-row{display:flex;gap:8px}.staff-code-row .staff-input-field{flex:1}.staff-btn-primary{width:100%;padding:11px;background:#1f6f43;color:#fff;border:none;border-radius:8px;font-size:.92rem;font-weight:600}.staff-btn-primary:disabled{opacity:.5}.staff-btn-secondary{padding:0 14px;background:#eef3f0;color:#1f6f43;border:1px solid #1f6f43;border-radius:8px;font-size:.82rem;white-space:nowrap}.staff-btn-secondary:disabled{opacity:.5}.staff-error{color:#d32f2f;font-size:.8rem;margin-top:10px}.staff-body{flex:1;overflow-y:auto;padding:14px}.staff-empty{text-align:center;color:#999;font-size:.8rem;margin-top:40px}.staff-msg{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:10px}.staff-msg.is-mine{align-items:flex-end}.staff-msg.is-mine .staff-bubble{background:#1f6f43;color:#fff}.staff-bubble{max-width:80%;padding:8px 12px;border-radius:12px;background:#fff;border:1px solid #e0e0e0;font-size:.88rem;line-height:1.55;word-break:break-word;white-space:pre-wrap}.staff-meta{font-size:.68rem;color:#999;margin-top:3px}.staff-send-row{display:flex;gap:8px;padding:10px;border-top:1px solid #e0e0e0;background:#fff}.staff-send-row .staff-input-field{flex:1;margin-bottom:0}.staff-btn-send{width:auto;padding:0 18px}