body{background:#f4f7fb;font-family:Segoe UI,Tahoma,sans-serif}
.navbar,.hero{background:linear-gradient(90deg,#0d2d62,#1769d1)}
.hero{border-bottom-left-radius:30px;border-bottom-right-radius:30px}
.panel{border:none;border-radius:18px;box-shadow:0 10px 25px rgba(0,0,0,.08)}
.card-header{background:white;font-weight:600;border-bottom:1px solid #eef2f7}
.panel:hover{transform:translateY(-4px);transition:.3s}
.avatar{width:36px;height:36px;background:#fff;color:#0d2d62;display:flex;align-items:center;justify-content:center;font-weight:700}
footer{color:#777}

.announcement-img{
height:520px;
object-fit:contain;
background:#fff;
}
.carousel-control-prev-icon,.carousel-control-next-icon{
background-color:rgba(0,0,0,.55);
border-radius:50%;
padding:18px;
}