/* Shenghui design tokens - approved scheme B */
:root {
  /* Brand surfaces (scheme B: navy + grey-white, no pure white surfaces) */
  --color-navy: #0B2F55;
  --color-navy-deep: #081F3A;
  --color-navy-soft: #14477E;
  --color-surface: #F3F5F7;
  --color-surface-raised: #F8F9FA;
  --color-surface-tint: #EDF1F4;

  /* Text */
  --color-text: #26323E;
  --color-text-muted: #5A6673;
  --color-text-on-navy: #D7E1EC;

  /* Lines */
  --color-border: #D8DEE5;
  --color-border-strong: #B9C3CE;

  /* Accents (low-saturation gold / warm grey) */
  --color-gold: #A98A5F;
  --color-gold-deep: #8F6F43;
  --color-gold-soft: #E9DFCD;
  --color-warm-gray: #8A8078;

  /* Feedback */
  --color-focus-ring: #3D7BBF;
  --color-danger: #A94438;
  --color-success: #3E7C59;

  /* Typography */
  --font-body: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.375rem;
  --font-size-2xl: 1.75rem;
  --font-size-3xl: 2.25rem;
  --line-height-body: 1.7;
  --line-height-heading: 1.35;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3.5rem;
  --space-9: 5rem;

  /* Layout */
  --container-width: 1180px;
  --header-height: 72px;
  --header-height-mobile: 60px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Motion */
  --transition-fast: 160ms ease;
  --transition-base: 240ms ease;
  --shadow-card: 0 1px 3px rgba(11, 47, 85, 0.08), 0 4px 12px rgba(11, 47, 85, 0.06);
  --shadow-raised: 0 2px 6px rgba(11, 47, 85, 0.10), 0 8px 24px rgba(11, 47, 85, 0.08);
}