/* 共通スタイル */
    body {
      margin: 0;
      font-family: sans-serif;
      font-size: 16px;
      color: #333;
    }
    header {
      background-color: #f8d7c3;
      padding-left: 20px;
      padding-right: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    nav ul {
      list-style: none;
      display: flex;
      margin: 0;
      padding: 0;
    }
    nav li {
      margin-right: 20px;
    }
    nav a {
      color: #333;
      text-decoration: none;
      font-weight: bold;
      transition: color 0.2s;
    }
    nav a:hover {
      color: red;
    }
    main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    /* TOPページ固有のスタイル */
    section img {
      width: 100%;
      max-width: 1000px;
      height: auto;
      display: block;
      margin: 0 auto;
    }
    h1 {
      font-size: 3rem;
      margin-top: 40px;
      text-align: center;
    }
    h2 {
      font-size: 2.5rem;
      margin-top: 35px;
      text-align: center;
    }
    p {
      font-size: 1.5rem;
      margin-top: 20px;
      margin-left:1em;
      text-align: center;
    }