:root {
  color-scheme: light;
  --font-sans: var(--font-geist-sans), var(--font-noto-sc), 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: var(--font-geist-mono), ui-monospace, monospace;
  --identity-ink: #111111;
  --identity-muted: #666666;
  --identity-line: #e7e7e7;
  --identity-surface: #f6f6f6;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: #ffffff;
  color: var(--identity-ink);
  font: 16px/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
button, input, textarea, select { font: inherit; }
button, a, input, textarea, select { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--identity-ink); outline-offset: 4px; }
::selection { color: #111111; background: #e0ece1; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto !important; } }