body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f5f5f5;
  }
  
  .header {
    background-color: #292929;
    color: #fff;
  }
  
  .navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
  }
  
  .logo {
    font-weight: bold;
    font-size: 1.2rem;
    color: #fff;
    text-decoration: none;
  }
  
  .nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
  }
  
  .nav-links li {
    display: inline;
  }
  
  .nav-links a {
    color: #fff;
    text-decoration: none;
  }
  
  .menu-icon {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
  }
  
  .hero {
    position: relative;
    overflow: hidden;
  }
  
  .hero-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    display: block;
  }
  
  .hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
  }
  
  .hero-text h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }
  
  .hero-text p {
    font-size: 1rem;
  }
  
  .intro {
    padding: 2rem;
    background-color: #fff;
    margin: 1rem auto;
    max-width: 900px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .intro h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .blog {
    padding: 2rem;
    background-color: #fff;
    margin: 1rem auto;
    max-width: 900px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .blog-image {
    width: 100%;
    height: auto;
    margin-bottom: 1rem;
  }
  
  .blog h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .blog p,
  .blog ol {
    margin-bottom: 1rem;
    line-height: 1.6;
  }
  
  .affiliate-link {
    display: inline-block;
    background-color: #ff5050;
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: 0.25rem;
    text-decoration: none;
    font-weight: bold;
  }
  
  .footer {
    background-color: #292929;
    color: #fff;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
  }
  
  @media (max-width: 768px) {
    .nav-links {
      display: none;
      flex-direction: column;
      background-color: #292929;
      position: absolute;
      top: 60px;
      right: 0;
      width: 50%;
      padding: 1rem;
    }
    .menu-icon {
      display: block;
      color: #fff;
    }
  }
  

  /* ========== sample.css ========== */

/* ページ全体のスタイル調整 */
body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  background-color: #fafafa;
  color: #333;
}

/* ブログ記事用セクション */
.blog-post {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1.5rem;
  background-color: #fff;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.blog-post h2 {
  margin-top: 0;
  font-size: 1.75rem;
  color: #333;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.blog-post p {
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* スマホなど画面幅が狭い場合のレスポンシブ対応 */
@media (max-width: 600px) {
  .blog-post {
    margin: 1rem;
    padding: 1rem;
  }
  .blog-post h2 {
    font-size: 1.4rem;
  }
}