:root {
  --primary: #3370ff;
  --primary-light: #e8f0ff;
  --primary-dark: #2458cc;
  --primary-gradient: linear-gradient(135deg, #3370ff 0%, #5b9cff 100%);
  --success: #34c724;
  --success-light: #e8f8e8;
  --warning: #ff9500;
  --warning-light: #fff5e6;
  --danger: #ff3b30;
  --danger-light: #ffe8e8;
  --info: #5ac8fa;
  --info-light: #e6f7ff;
  --bg: #f5f6fa;
  --bg-card: #ffffff;
  --bg-grey: #f0f1f5;
  --text: #1f2329;
  --text-secondary: #646a73;
  --text-hint: #8f959e;
  --border: #dee0e3;
  --border-light: #e8e8e8;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow: 0 2px 8px rgba(31,35,41,0.06);
  --shadow-md: 0 4px 16px rgba(31,35,41,0.08);
  --shadow-lg: 0 8px 32px rgba(31,35,41,0.12);
  --tab-height: 56px;
  --header-height: 52px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}