:root{--ink: 25 24 22;--ink-soft: 108 106 99;--paper: 250 249 245;--paper-soft: 240 238 230;--cloud: 250 249 245;--cloud-soft: 168 166 157;--azure: 55 99 171;--azure-bright: 147 180 230;--azure-tint: 226 234 247;--ember: 163 69 45;--maxw: 1200px;--gutter: clamp(1.25rem, 5vw, 3rem);--radius: 14px;--radius-btn: 10px;--radius-pill: 999px;--hairline: 1px solid rgb(var(--ink) / .12);--font-serif: "Newsreader", "Iowan Old Style", Georgia, serif;--font-sans: "Inter", ui-sans-serif, system-ui, sans-serif}:root:lang(zh){--font-serif: "Newsreader", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;--font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", ui-sans-serif, system-ui, 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