:root{--accent:#1a73e8;--bg:#f7f9fc;--card:#fff;--text:#222;}
    body{font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);margin:0;padding:20px;}
    .wrap{max-width:1000px;margin:18px auto;background:var(--card);padding:28px;border-radius:10px;box-shadow:0 8px 24px rgba(15,30,60,0.06);}
    h1{color:var(--accent);margin:0 0 12px;font-size:26px;}
    h2{color:#0b3a66;margin-top:20px;margin-bottom:8px;font-size:18px;}
    h3{margin:14px 0 6px;font-size:15px;color:#144269;}
    p{margin:10px 0;line-height:1.7;}
    ul{margin:8px 0 12px 20px;}
    table{width:100%;border-collapse:collapse;margin:12px 0;}
    th,td{border:1px solid #e6eef8;padding:8px;text-align:center;}
    th{background:#f1f7ff;color:#0b3a66;font-weight:600;}
    .chart{margin:14px 0;text-align:center;}
    .note{font-size:13px;color:#666;margin-top:8px;}
    @media (max-width:720px){ .wrap{padding:16px;} h1{font-size:20px;} }