body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:linear-gradient(135deg,#0a2540,#0d3b66);
  color:#eaf1ff;
}
.container{
  max-width:1100px;
  margin:0 auto;
  padding:32px 20px 64px;
}
header{
  text-align:center;
  margin-bottom:40px;
}
header img{
  max-width:520px;
  width:90%;
}
header .sub{
  margin-top:8px;
  letter-spacing:0.2em;
  text-transform:uppercase;
  font-size:13px;
  opacity:0.85;
}
nav{
  margin-top:28px;
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
nav a{
  padding:10px 16px;
  border-radius:999px;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  text-decoration:none;
}
section{
  margin-top:48px;
  background:rgba(255,255,255,0.08);
  padding:28px;
  border-radius:16px;
}
footer{
  margin-top:60px;
  text-align:center;
  font-size:13px;
  opacity:0.7;
}