:root{--paper: #f7f4ee;--card: #ffffff;--ink: #1c1b18;--ink-2: rgba(28, 27, 24, .62);--ink-3: rgba(28, 27, 24, .42);--pine: #175247;--pine-deep: #0e3a31;--pine-soft: rgba(23, 82, 71, .08);--clay: #d95b2b;--clay-soft: rgba(217, 91, 43, .1);--line: rgba(28, 27, 24, .13);--line-strong: rgba(28, 27, 24, .28);--serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;--sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--en: Georgia, "Times New Roman", serif;--r-lg: 22px;--r-md: 14px;--r-sm: 10px;--shadow: 0 1px 2px rgba(28, 27, 24, .04), 0 10px 30px rgba(28, 27, 24, .07);--header-h: 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