@charset "UTF-8";
  body {
    font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
    line-height: 1.7;
    background: #fafafa;
    color: #333;
    margin: 2rem;
  }
  h1 {
    font-size: 1.8rem;
    border-bottom: 3px solid #0078d4;
    padding-bottom: 0.3rem;
    margin-bottom: 1rem;
  }
  ul {
    list-style-type: none;
    padding-left: 1.2rem;
  }
  li {
    margin: 0.4rem 0;
  }
  li a {
    text-decoration: none;
    color: #0078d4;
  }
  li a:hover {
    text-decoration: underline;
  }
  .sub {
    margin-left: 1.2rem;
  }