:root{color-scheme:light;--paper: #f1efe8;--paper-bright: #faf9f5;--ink: #12151a;--muted: #5f646d;--line: rgba(18, 21, 26, .16);--accent: #164fd8;--accent-dark: #0e38a3;--sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;--container: 72rem;--radius: .35rem;--shadow: 0 1.25rem 4rem rgba(18, 21, 26, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:linear-gradient(rgba(18,21,26,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(18,21,26,.035) 1px,transparent 1px),var(--paper);background-size:2rem 2rem;font-family:var(--sans);line-height:1.65;text-rendering:optimizeLegibility}a{color:inherit}a:focus-visible,button:focus-visible{outline:.2rem solid var(--accent);outline-offset:.25rem}.skip-link{position:fixed;z-index:20;top:.75rem;left:.75rem;padding:.65rem .9rem;color:#fff;background:var(--ink);transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}.container{width:min(calc(100% - 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