*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Arial,Helvetica,sans-serif;min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eaf6ff,#cfeaff)}
.card{background:#fff;max-width:900px;width:92%;padding:50px;border-radius:20px;text-align:center;box-shadow:0 15px 40px rgba(0,0,0,.12)}
.logo{max-width:520px;width:100%;height:auto;margin:0 auto 30px;display:block}
h1{font-size:52px;color:#1b7fc5;margin-bottom:15px}
p{font-size:22px;color:#444}
.sub{margin-top:14px;font-size:18px;color:#666}
@media(max-width:768px){h1{font-size:36px}.card{padding:30px}p{font-size:18px}.sub{font-size:16px}}