:root{--bg: #F5F7FA;--card: #FFFFFF;--ink: #22283A;--ink-soft: #5B6770;--line: #D8DEE6;--navy: #1B2A4A;--navy-dark: #10203C;--steel: #2E74B5;--steel-dark: #205081;--crimson: #B23A48;--crimson-dark: #8A2C38;--gold: #C9A227;--gold-dark: #9C7E1E;--green: #2F7D4F;--green-soft: #E3F1E8;--amber-soft: #FBF1D9;--red-soft: #F8E3E5;--gray: #8A97A3;--radius: 12px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);background-image:radial-gradient(ellipse at top,#EAF0F7 0%,var(--bg) 62%);color:var(--ink);font-size:16px;line-height:1.5}.app{max-width:1000px;margin:0 auto;padding:16px 14px 40px}h1{color:var(--navy);font-size:1.6rem;line-height:1.2}h2{color:var(--navy);font-size:1.2rem;margin-bottom:8px}h3{color:var(--navy);font-size:1.05rem;margin:14px 0 6px}p{margin:6px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:14px 0;box-shadow:0 1px 4px 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