body{margin:0;font-family:Arial;background:#f4f6f9;color:#111}
header{background:#0a1a2f;color:#fff;padding:25px;text-align:center}
header img{height:70px}
nav{background:#102544;position:sticky;top:0;text-align:center;padding:14px}
nav a{color:#87cefa;margin:0 18px;text-decoration:none;font-weight:bold}
section{padding:90px 20px}
.container{max-width:1150px;margin:auto;background:#fff;padding:50px;border-radius:18px;box-shadow:0 0 22px rgba(0,0,0,.15)}
.slider{width:100%;overflow:hidden}
.slide{display:none}
.slide img{width:100%;height:450px;object-fit:cover}
footer{background:#0a1a2f;color:#fff;text-align:center;padding:25px}