/* ========================================
   全局变量 - 福建宇易数字科技官网（专业咨询顾问风）
   ======================================== */

:root {
  /* ============ 品牌色系统 ============ */
  --color-primary: #1e40af;        /* 商务蓝 */
  --color-primary-dark: #0f1c4d;
  --color-primary-light: #3b82f6;
  --color-secondary: #0f172a;
  --color-secondary-light: #1e293b;

  --color-accent: #f59e0b;         /* 价值金 */
  --color-accent-light: #fbbf24;
  --color-accent-muted: #fff0d3;

  --color-success: #0e9f6e;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;
  --color-info: #0284c7;

  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5f5;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1f2937;
  --color-gray-900: #0f172a;

  --bg-primary: var(--color-white);
  --bg-secondary: #f8fafc;
  --bg-tertiary: #eef2ff;
  --bg-muted: #e0e7ff;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --text-light: var(--color-white);

  /* ============ 字体系统 ============ */
  --font-family-base: 'Noto Sans SC', 'IBM Plex Sans', 'Source Han Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-family-heading: 'Source Serif Pro', 'Noto Serif SC', 'Times New Roman', serif;
  --font-family-data: 'Barlow Semi Condensed', 'Noto Sans SC', sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 800;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-comfortable: 1.75;
  --line-height-relaxed: 1.9;

  /* ============ 间距系统 ============ */
  --spacing-2xs: 0.25rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  --spacing-4xl: 4rem;
  --spacing-5xl: 5rem;

  /* ============ 圆角与阴影 ============ */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 3rem;

  --shadow-sm: 0 6px 18px rgba(30, 64, 175, 0.08);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 24px 45px rgba(15, 23, 42, 0.18);
  --shadow-inner: inset 0 1px 0 rgba(255, 255, 255, 0.35);

  /* ============ 边框 & 渐变 ============ */
  --border-color: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.16);

  --gradient-hero: linear-gradient(120deg, rgba(30,64,175,0.95), rgba(15,23,42,0.95));
  --gradient-card: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(30,64,175,0.02));
  --gradient-gold: linear-gradient(120deg, #f59e0b, #fbbf24);

  /* ============ 布局 ============ */
  --layout-max-width: 1260px;
  --layout-wide-width: 1460px;

  /* ============ 动画 ============ */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}