body{font-family:Arial,Helvetica,sans-serif;background:#f4f7fb;margin:0;padding:30px;text-align:center}
.box{max-width:720px;margin:60px auto;background:#fff;padding:30px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,0.08)}
.btn{display:inline-block;padding:14px 28px;background:#0066cc;color:#fff;border-radius:10px;text-decoration:none;font-size:18px}
.note{color:#777;margin-top:12px;font-size:14px}