body{font-family:Arial,sans-serif;max-width:900px;margin:auto;padding:40px;background:#f5f7fb;color:#222;line-height:1.7}header{display:flex;justify-content:space-between;align-items:center}a{color:#2563eb;text-decoration:none}h1,h2{color:#163b72}footer{margin-top:40px;border-top:1px solid #ccc;padding-top:20px}