:root{--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--bg:#f6f8fc;--primary:#4f46e5;--primary2:#7c3aed;--success:#059669;--danger:#dc2626;--warning:#d97706}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:radial-gradient(circle at 15% 0,#eef2ff 0,transparent 35%),var(--bg)}a{color:inherit}.public-header{max-width:1240px;margin:auto;padding:24px 28px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 10px 24px rgba(79,70,229,.22)}.brand div{display:flex;flex-direction:column}.brand strong{font-size:15px}.brand 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