:root{--paper:#f5f1e7;--ink:#2c2d26;--muted:#77776a;--line:#dcd8cb;--amber:#bd811c;--gold:#efbd54;--white:#fffdf8;--font:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.6}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #b78432;outline-offset:4px}[hidden]{display:none!important}.masthead{max-width:1440px;padding:30px 50px 24px;margin:auto;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:14px;text-decoration:none;font-weight:800;letter-spacing:2px;font-size:22px}.brand-mark{display:grid;place-items:center;letter-spacing:-4px;font:italic bold 39px Georgia,serif;background:var(--gold);border:1px solid 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