:root{--bg:#f5fbfa;--panel:#ffffff;--panel-soft:#f7fcfb;--line:#d5e7e4;--line-strong:#b7d4cf;--text:#172934;--muted:#65737e;--brand:#4cccb8;--brand-strong:#319e8c;--brand-ink:#1f7668;--accent:#fda100;--accent-soft:#fff4dc;--blue:#569ff7;--green:#50a88f;--yellow:#a76b00;--red:#dd464c;--violet:#c594c5;--shadow:0 10px 28px rgba(33,41,52,0.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}.top-nav{position:-webkit-sticky;position:sticky;top:0;z-index:20;gap:24px;min-height:72px;padding:0 32px;border-bottom:1px solid var(--line);background:rgba(245,251,250,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand,.top-nav{display:flex;align-items:center}.brand{gap:10px;line-height:1;min-width:192px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;border:1px solid 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