/* ZENREAD ACADEMIC — Design Tokens */
:root {
  --color-primary-900: #072c4e;
  --color-primary-700: #0a4980;
  --color-primary-600: #0d63af;
  --color-primary-500: #1576bc;
  --color-primary-400: #2172b9;
  --color-primary-300: #389dd8;
  --color-primary-100: #dceefb;
  --color-primary-50: #eff6fc;

  --color-accent-600: #d4a800;
  --color-accent-500: #f4cb20;
  --color-accent-100: #fef9e0;
  --color-accent-50: #fffcf0;

  --color-neutral-900: #1a1a2e;
  --color-neutral-800: #2d2d44;
  --color-neutral-700: #4a4a5e;
  --color-neutral-500: #8e8e9e;
  --color-neutral-300: #d4d4de;
  --color-neutral-200: #e8e8f0;
  --color-neutral-100: #f4f4f8;
  --color-neutral-50: #fafafc;
  --color-neutral-0: #ffffff;

  --color-success-600: #4a9e4f;
  --color-success-500: #68ba6c;
  --color-success-100: #e8f5e9;
  --color-warning-600: #cc7000;
  --color-warning-500: #f08a19;
  --color-warning-100: #fff3e0;
  --color-danger-600: #d32f2f;
  --color-danger-500: #ef4444;
  --color-danger-100: #fde8e8;
  --color-info-600: #0d8a8d;
  --color-info-100: #e0f7f7;

  /* 英文/数字 Plus Jakarta Sans · 中文思源黑体（Noto Sans SC = Source Han Sans SC） */
  --font-latin: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-cjk: "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-sans: var(--font-latin), var(--font-cjk);
  --font-mono: "Plus Jakarta Sans", "JetBrains Mono", "Noto Sans SC", Consolas, Menlo, monospace;

  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(13, 99, 175, 0.06);
  --shadow-md: 0 4px 16px rgba(13, 99, 175, 0.08);
  --shadow-lg: 0 8px 32px rgba(13, 99, 175, 0.10);
  --shadow-focus: 0 0 0 3px rgba(13, 99, 175, 0.15);

  --header-h: 64px;
  --sidebar-w: 280px;
  --admin-sidebar-w: 220px;
  --admin-sidebar-collapsed-w: 72px;
  --content-max: 1300px;

  --z-modal: 600;
  --z-modal-sub: 650;
  --z-confirm: 700;
  --z-lightbox: 750;
  --z-toast: 900;
  --transition: 0.14s ease;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}