:root{--bg: #ffffff;--bg-soft: #fafafc;--bg-alt: #f7f7fb;--ink: #0e1117;--ink-soft: #2d333d;--muted: #5b6473;--muted-d: #8b93a3;--line: #e6e8ee;--accent: #5a8dee;--accent-2: #8b6cf6;--good: #21c07a;--warn: #f0a13a;--bad: #e25555;--max: 760px;--max-wide: 1100px;--radius: 14px;--radius-sm: 8px;--shadow: 0 1px 2px rgba(20,30,50,.06), 0 12px 32px rgba(20,30,50,.06);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-serif: "Source Serif Pro", Georgia, "Times New Roman", serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}a{color:var(--accent);text-decoration:none;transition:color .15s}a:hover{color:var(--accent-2);text-decoration:underline}img{max-width:100%;display:block;height:auto}.container{max-width:var(--max);margin:0 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