:root{--brand: #1b4f8a;--brand-dark: #143b68;--brand-50: #eef3f9;--ink: #1f2933;--muted: #6b7785;--line: #e3e8ee;--bg: #f4f6f9;--ok: #1f9d55;--ok-bg: #e6f6ed;--warn: #b7791f;--warn-bg: #fdf4e3;--danger: #c0392b;--danger-bg: #fbeae8;--info: #2b6cb0;--info-bg: #e8f0fa;--radius: 12px;--shadow: 0 1px 3px rgba(20, 40, 70, .08), 0 1px 2px rgba(20, 40, 70, .04)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:Segoe UI,system-ui,-apple-system,Arial,sans-serif;font-size:15px;line-height:1.5}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.app-header{background:var(--brand);color:#fff}.app-header__inner{max-width:1100px;margin:0 auto;padding:14px 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