body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f8f8f8;
    color: #333;
  }
  
  header {
    background: #333;
    color: #fff;
    padding: 1rem;
  }
  
  .site-title {
    margin: 0;
    font-size: 1.5rem;
  }
  
  nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    padding: 0;
  }
  
  nav a {
    color: #fff;
    text-decoration: none;
  }
  
  .section {
    padding: 2rem;
    background: #fff;
    margin: 1rem auto;
    max-width: 960px;
    border-radius: 8px;
  }
  
  .works-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .work-item {
    flex: 1 1 calc(50% - 1rem);
    background: #eee;
    padding: 1rem;
    text-align: center;
    border-radius: 4px;
  }
  
  .work-item img {
    max-width: 100%;
    height: auto;
  }
  
  footer {
    text-align: center;
    padding: 1rem;
    background: #333;
    color: #fff;
    margin-top: 2rem;
  }
  
  /* スマホ対応 */
  @media screen and (max-width: 600px) {
    .work-item {
      flex: 1 1 100%;
    }
  
    nav ul {
      flex-direction: column;
      gap: 0.5rem;
    }
  }