:root{--paper:#f2efe7;--surface:#f9f7f0;--ink:#28342e;--muted:#737a6c;--line:#d6d8cb;--accent:#986447;--gold:#baa77e;--serif:"Songti SC","Noto Serif CJK SC","STSong",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.7 var(--sans)}button,input,select{font:inherit;color:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button{border:0;background:none}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[role=button]:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button:disabled{opacity:.35;cursor:default}.topbar{margin:0 4%;padding:22px 0;border-bottom:1px solid 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