:root{--ink:#202d29;--muted:#65716b;--green:#247b65;--line:#dce1db;--paper:#fcfcf9}*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:86px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--green);text-underline-offset:4px}a:focus-visible,button:focus-visible{outline:3px solid #a7baab;outline-offset:5px}header{height:64px;padding:0 max(24px,calc((100vw - 1100px)/2));display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);background:#fcfcf9ed;backdrop-filter:blur(10px);position:sticky;top:0;z-index:5;gap:24px}.brand{text-decoration:none;color:var(--ink);font:600 17px Georgia,serif;white-space:nowrap}nav{display:flex;gap:26px}nav a{font-size:12px;text-decoration:none;color:var(--muted)}main{max-width:1120px;padding:0 32px;margin:auto}.hero{text-align:center;padding:65px 0 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/* Classic Times variables; STIX supplies extensible mathematical symbols. */
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math .math-variable{font-family:"Times New Roman","STIX Two Math",serif;font-style:italic}
math mi.math-variable[mathvariant="normal"]{font-style:italic}
math mn,math mtext{font-family:"Times New Roman","STIX Two Math",serif;font-style:normal}
math mo{font-family:"STIX Two Math","Times New Roman",serif}
.text i{font-family:"Times New Roman",serif;font-size:1.08em}
.equation{margin:20px 0 24px}.math-scroll{padding:9px 1px}
.composition-frame{margin:22px 0}.composition-table{min-width:810px;table-layout:fixed}
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.composition-table thead th{font-size:11px}.composition-table th:first-child{width:100px}.composition-table th:nth-child(2){width:305px}
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.composition-table math{font-size:19px;white-space:nowrap}.output-kind{display:block;font:11px/1.5 -apple-system,BlinkMacSystemFont,sans-serif;color:var(--muted);margin-top:8px}
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