:root{--paper:#fbf7ed;--ink:#303f35;--muted:#626a5e;--green:#536c50;--clay:#b55d40;--line:#e6e1d3;--yellow:#efd387;--serif:Georgia,'Times New Roman','Songti SC',serif;--sans:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:default}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #ad623b;outline-offset:5px}button{border:0}a{color:inherit;text-decoration:none}.skip{position:fixed;top:-100px;left:20px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}.topbar{max-width:1320px;margin:auto;padding:22px 40px;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;font:700 25px 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