body {
  font-family: sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #222;
  color: white;
  padding: 40px 20px;
  text-align: center;
}
.catch {
  font-size: 1.4em;
  margin-top: 10px;
}
section {
  padding: 40px 20px;
  max-width: 800px;
  margin: auto;
  background: white;
  margin-bottom: 20px;
}
h2 {
  border-bottom: 2px solid #ddd;
  padding-bottom: 10px;
}
footer {
  text-align: center;
  padding: 20px;
  background: #eee;
  font-size: 0.9em;
}
img {
  max-width: 100%;
  height: auto;
}

.logo {
  max-width: 400px;
  height: auto;
  display: block;
  margin: 0 auto 20px;
}