body {
  font-family: sans-serif;
  background: #f7f7f7;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 800px;
  margin: 40px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 32px;
}
h1 {
  text-align: center;
  margin-bottom: 32px;
}
.site-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}
.site-item {
  background: #f0f4fa;
  border-radius: 8px;
  padding: 20px 12px;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
  display: flex;
  justify-content: center;
  align-items: stretch;
}
.site-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  width: 100%;
  height: 100%;
}
.site-thumb {
  width: 100%;
  max-width: 320px;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  background: #e0e0e0;
  border: 1px solid #ccc;
  margin-bottom: 16px;
  transition: box-shadow 0.2s;
}
.site-link:hover .site-thumb {
  box-shadow: 0 4px 16px rgba(25, 118, 210, 0.15);
}
.site-title {
  font-size: 1.15em;
  color: #222;
  margin: 0;
  text-align: center;
  font-weight: bold;
}
.site-link {
  color: #1976d2;
  text-decoration: none;
  font-weight: bold;
}
.site-link:hover {
  text-decoration: underline;
}