body {
  font-family: "Microsoft YaHei", Arial, sans-serif;
  background: #fafafa;
  color: #333;
  max-width: 800px;
  margin: auto;
  padding: 20px;
}
h1 {
  border-bottom: 2px solid #ddd;
  padding-bottom: 5px;
}
ul { list-style: none; padding: 0; }
ul li { margin: 5px 0; }
a { color: #0073aa; text-decoration: none; }
a:hover { text-decoration: underline; }
.content { margin-top: 20px; line-height: 1.8; }
form { margin-bottom: 15px; }