:root{--paper:#f6f4ed;--ink:#173d32;--body:#4f5b52;--muted:#747e72;--line:#d9ddd1;--sage:#e7eadf;--white:#fcfbf7;--serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;--sans:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}
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