body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
  color: #333;
}
.container {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}
h1, h2, h3 {
  color: #444;
}
h1 {
  text-align: center;
  font-size: 2em;
  margin-bottom: 20px;
}
h2 {
  margin-top: 20px;
  border-bottom: 2px solid #eee;
  padding-bottom: 5px;
}
p, ul {
  margin: 10px 0;
}
ul {
  padding-left: 20px;
}
ul li {
  margin: 5px 0;
}
.updated {
  text-align: right;
  font-style: italic;
  color: #666;
  margin-top: 20px;
}