body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  background: #f8f9fa;
  color: #222;
}
header {
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 10px;
}
.banner {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  display: block;
}
nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 20px 0;
}
nav a {
  text-decoration: none;
  color: #005fa3;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  transition: background 0.2s;
}
nav a:hover, nav a.active {
  background: #e3f2fd;
}
.container {
  max-width: 900px;
  margin: 30px auto;
  background: #fff;
  padding: 32px 24px;
  border-radius: 10px;
  box-shadow: 0 2px 12px #0001;
}
h1, h2, h3 {
  color: #005fa3;
  font-weight: 600;
}
.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
}
.gallery img {
  width: 180px;
  height: 120px;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid #e0e0e0;
  transition: border 0.2s;
}
.gallery img:hover {
  border: 2px solid #005fa3;
}
footer {
  text-align: center;
  color: #888;
  font-size: 15px;
  margin: 40px 0 10px 0;
}
@media (max-width: 600px) {
  .container { padding: 10px; }
  .gallery img { width: 100px; height: 70px; }
  nav { flex-direction: column; gap: 10px; }
}