:root {
  --color-ink: #04342C;
  --color-ink-muted: #085041;
  --color-ink-soft: #0F6E56;
  --color-surface-mint: #E1F5EE;
  --color-teal: #1D9E75;
  --color-teal-light: #5DCAA5;
  --color-teal-pale: #9FE1CB;
  --color-coral: #D85A30;
  --color-coral-hover: #993C1D;
  --color-coral-soft: #F0997B;
  --color-coral-bg: #FAECE7;
  --color-gray: #5F5E5A;
  --color-gray-light: #888780;
  --color-gray-border: #D3D1C7;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --nav-height: 64px;
  --section-pad-x: 48px;
  --section-pad-y: 80px;
  --radius-card: 16px;
  --radius-btn: 14px;
  --shadow-phone: 0 8px 32px rgba(29, 158, 117, 0.1);
  --z-nav: 100;
  --z-modal: 200;

  /* 官方 App Store / Google Play badge 統一顯示尺寸 */
  --store-badge-width: 120px;
  --store-badge-height: 40px;
}