body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f5f5f5;
  margin: 0;
  padding: 0;
  color: #333;
}

.container {
  max-width: 900px;
  margin: 40px auto;
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

h1 {
  color: #0d47a1;
  font-size: 2em;
  margin-bottom: 0.2em;
}

.update-date {
  font-size: 0.9em;
  color: #555;
  margin-bottom: 1.5em;
}

h2 {
  color: #0a355c;
  margin-top: 1.5em;
}

a {
  color: #0d47a1;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul {
  margin: 0 0 1em 1.2em;
}

.back-button {
  display: inline-block;
  margin-top: 2em;
  padding: 10px 20px;
  background-color: #0d47a1;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.back-button:hover {
  background-color: #08306b;
}