:root{--ink:#17243d;--muted:#63718a;--blue:#194a9b;--blue2:#2f68c8;--pale:#f1f6ff;--line:#e2e8f1;--surface:#fff;--bg:#f8faff;--green:#0f766e}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1160px,calc(100% - 36px));margin-inline:auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);line-height:1.1}.brand:hover{text-decoration:none}.brand 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