:root{--paper:#FFF9EC;--white:#fff;--pale:#F7EBCB;--sun:#E9B92F;--leaf:#6A8247;--ink:#302718;--body:#514637;--mute:#746651;--line:#E7DCC4}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font:16px/1.78 system-ui,-apple-system,"Microsoft YaHei","PingFang SC",sans-serif;overflow-wrap:anywhere}button,a{font:inherit}a{color:#4f6437;text-underline-offset:4px}a:hover{color:#302718}a:focus-visible,button:focus-visible{outline:3px solid #6A8247;outline-offset:3px}button{cursor:pointer}.shell{width:min(1160px,calc(100% - 40px));margin-inline:auto;min-width:0}.site-header{background:#fff;border-bottom:1px solid 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