:root{--bg:#f4f5f2;--panel:#fff;--ink:#111418;--muted:#5a616b;--line:#d5d9de;--grid:#1114180f;--accent:#ff5a1f;--accent-hover:#ff7a47;--accent-ink:#c2410c;--sans:"Helvetica Neue", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--mono:ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "PingFang SC", monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;background-color:var(--bg);background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);background-size:32px 32px;margin:0}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}section[id],#main{scroll-margin-top:16px}.skip{background:var(--ink);color:#fff;z-index:10;padding:8px 12px;position:absolute;top:8px;left:-999px}.skip:focus{left:8px}.wrap{max-width:1184px;margin:0 auto;padding:0 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