:root{--paper:#f3f2e9;--card:#fcfcf6;--ink:#293d31;--muted:#697566;--line:#d8ddce;--green:#366249;--pale:#e8eddf;--red:#a25341;--brown:#92764f;--serif:"Iowan Old Style","Songti TC","Noto Serif TC",Georgia,serif;--sans:"PingFang TC","Microsoft JhengHei",sans-serif;--mono:"SFMono-Regular",Consolas,monospace}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:70px}body{margin:0;background:var(--paper);color:var(--ink);font:13px/1.7 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}button,select,input{font:inherit;color:inherit}button,a,summary,select{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #8b9d57;outline-offset:4px}button:disabled{cursor:default;opacity:.4}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--serif);font-weight:400}h1{font-size:34px;letter-spacing:1px;margin:8px 0 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