/* 設定頁面的字體和背景色 */
body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
  }
  
  /* 設定頁面標題的樣式 */
  h1 {
    font-size: 3rem;
    color: #333;
    margin: 0;
  }
  
  /* 設定導航列的樣式 */
  nav {
    background-color: #333;
    color: #fff;
  }
  
  nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
  }
  
  nav li {
    margin: 0;
  }
  
  nav a {
    display: block;
    padding: 1rem;
    text-decoration: none;
    color: #fff;
  }
  
  nav a:hover {
    background-color: #555;
  }
  
  /* 設定主要內容區塊的樣式 */
  main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
  }
  
  section {
    margin-bottom: 2rem;
  }
  
  h2 {
    font-size: 2rem;
    color: #333;
    margin-top: 0;
  }
  
  /* 設定表單的樣式 */
  form {
    display: flex;
    flex-direction: column;
    max-width: 400px;
    margin: 0 auto;
  }
  
  label {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }
  
  input,
  textarea {
    font-size: 1.2rem;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border: none;
    border-radius: 5px;
  }
  
  button[type="submit"] {
    background-color: #333;
    color: #fff;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  button[type="submit"]:hover {
    background-color: #555;
  }