:root{--bg:#f5f7fb;--card:#fff;--ink:#162033;--muted:#667085;--line:#e4e7ec;--accent:#155eef;--accent2:#eaf1ff;--good:#067647;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav{min-height:74px;display:flex;justify-content:space-between;gap:24px}.brand,.nav{align-items:center}.brand{display:inline-flex;flex:0 0 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