/* Hallmark · genre: editorial · macrostructure: Narrative Workflow · theme: Tokyo Paper custom · enrichment: official photography · nav: N6 · footer: Ft4 · redesign: from Long Document · contrast: pass (40–41) · slop: pass (42–57)
 * structural fingerprint: museum-guide masthead + photographic cover collage + four chronological chapters + alternating image/text plates
 * critique: P5 H5 E5 S5 R5 V5
 */
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  --color-surface: oklch(98.5% 0.014 80);
  --color-ink: oklch(20% 0.026 35);
  --color-body: oklch(33% 0.024 38);
  --color-muted: oklch(44% 0.028 42);
  --color-rule: oklch(77% 0.032 60);
  --color-accent: oklch(40% 0.135 27);
  --color-accent-soft: oklch(88% 0.045 36);
  --color-accent-ink: oklch(97% 0.012 76);
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  --font-display: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
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  --text-xs: 0.72rem;
  --text-sm: 0.86rem;
  --text-base: 1rem;
  --text-md: 1.19rem;
  --text-lg: 1.48rem;
  --text-xl: 1.86rem;
  --text-2xl: 2.36rem;
  --text-3xl: 3rem;
  --text-display: clamp(2.15rem, 10.5vw, 5.6rem);

  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  --rule-hair: 1px;
  --rule-strong: 2px;
  --radius-paper: 0.25rem;
  --page-gutter: clamp(1rem, 4.5vw, 4.5rem);
  --page-width: 82rem;
  --measure: 65ch;
  --narrow-measure: 50ch;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long: 420ms;
}
