:root{--bg:#f4f7fb;--card:#ffffff;--muted:#5c6b85;--text:#0f172a;--accent:#2563eb;--accent2:#22c55e;--border:rgba(15,23,42,.12);--shadow:0 10px 30px rgba(15,23,42,.08);--radius:18px;--max:1100px;--font:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji"}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--text);background:linear-gradient(180deg,#f4f7fb,#eef2f7 80%);line-height:1.6}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}p{margin:0 0 14px}ul,ol{margin:0 0 14px;padding-left:20px}img{max-width:100%;height:auto}.container{max-width:var(--max);margin:0 auto;padding:0 18px}.skip{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}.skip:focus{left:18px;top:18px;width:auto;height:auto;padding:10px 14px;background:#fff;color:#000;border-radius:12px;z-index:9999}.header{position:sticky;top:0;z-index:1000;backdrop-filter:saturate(180%) 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