/* 全局样式 */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}

header {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 20px;
}

section {
  padding: 20px;
  margin: 20px;
  background-color: white;
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

h2 {
  color: #333;
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  border: 1px solid #ccc;
  border-radius: 5px;
  padding: 10px;
  margin-bottom: 10px;
}

form label {
  display: block;
  margin-bottom: 5px;
}

form input,
form select {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

form button {
  background-color: #333;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

form button:hover {
  background-color: #555;
}

footer {
  text-align: center;
  padding: 10px;
  background-color: #333;
  color: white;
}