:root{--paper:#f7f8f4;--ink:#252738;--navy:#292840;--muted:#646774;--line:#d8dbd3;--accent:#d9ef87;--shade:#e9ede4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure,dl,dd{margin:0}a{color:inherit;text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:3px solid #717b3c;outline-offset:5px}code{font-family:ui-monospace,SFMono-Regular,monospace;overflow-wrap:anywhere}img{display:block;max-width:100%}.pf-width{width:min(1190px,calc(100% - 96px));margin-inline:auto}.pf-top{height:88px;max-width:1320px;padding:0 48px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:30px}.pf-wordmark{font-size:25px;letter-spacing:-1px;font-weight:750;text-decoration:none;display:flex;gap:13px;align-items:baseline}.pf-wordmark 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