:root {
  --page-bg:#f5f7fa; --surface:#fff; --surface-soft:#fafbfc; --surface-raised:#fff;
  --text-primary:#101828; --text-secondary:#475467; --text-muted:#667085;
  --border:#e4e7ec; --border-strong:#d0d5dd; --accent:#4f62d8; --accent-soft:#eef0ff;
  --success:#137a5d; --success-soft:#effaf6; --warning:#a55b16; --warning-soft:#fff8e8;
  --danger:#b42318; --danger-soft:#fff2f0; --focus:#8b99f5;
  --radius-sm:9px; --radius:12px; --radius-lg:15px; --shadow:0 10px 32px rgba(16,24,40,.055);
  --sidebar:226px; --max-width:1720px; --font:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}