:root {
  color-scheme: light;
  --color-paper: #f7f4ef;
  --color-paper-deep: #efe9df;
  --color-ink: #22211f;
  --color-ink-soft: #5e5a53;
  --color-line: rgba(34, 33, 31, 0.14);
  --color-line-strong: rgba(34, 33, 31, 0.26);
  --color-accent: #9f3027;
  --color-accent-soft: rgba(159, 48, 39, 0.1);
  --color-green: #566756;
  --shadow-paper: 0 18px 50px rgba(68, 54, 38, 0.08);
  --container: 1120px;
  --gutter: clamp(20px, 4vw, 44px);
  --radius: 2px;
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", Georgia, "Times New Roman", serif;
  --font-ui: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}