:root {
 --color-paper: oklch(97% .006 60); --color-surface: oklch(99% .003 60); --color-soft: oklch(94% .009 60); --color-rule: oklch(82% .012 60); --color-input-rule: oklch(58% .012 60);
 --color-ink: oklch(23% .012 60); --color-muted: oklch(44% .012 60); --color-accent: oklch(52% .16 35); --color-accent-ink: oklch(99% .003 60); --color-focus: oklch(40% .12 35); --color-error: oklch(44% .17 25);
 --color-poster: oklch(89% .024 70); --color-bottle: oklch(72% .022 70); --color-cap: oklch(32% .015 60);
 --font-display: 'Space Grotesk', 'PingFang TC', sans-serif; --font-body: 'Geist', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
 --space-xs: .5rem; --space-sm: .75rem; --space-md: 1rem; --space-lg: 1.5rem; --space-xl: 2.5rem; --space-2xl: 4rem; --space-3xl: 6rem;
 --text-display: clamp(3rem, 6.5vw, 6.5rem); --text-heading: clamp(1.8rem, 3vw, 3rem); --text-small: .8125rem;
 --radius-small: .375rem; --radius-large: 1rem; --ease-out: cubic-bezier(.16,1,.3,1); --dur-micro: 120ms;
}