:root{--paper:#f6f5f0;--white:#fffefa;--ink:#24392f;--green:#173f35;--muted:#7a8077;--line:#dedfd5;--lime:#d9e7b1;--orange:#c97442;--serif:"Noto Serif SC","Source Han Serif SC","SimSun",serif;--sans:"Microsoft YaHei","PingFang SC",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.75}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--orange);outline-offset:4px}button{color:inherit}button:disabled{cursor:default;opacity:.6}.sidebar{width:248px;position:fixed;inset:0 auto 0 0;background:#efefe7;border-right:1px solid var(--line);padding:35px 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