body {
    margin: 0;
    background-color: #f7f7f8;
    color: #0f0f0f;
    font-family: Arial, sans-serif;
  }
  
  a {
    color: #0f0f0f;
    text-decoration: none;
  }
  
  .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
  }
  
  header .container {
    padding: 20px 0;
    text-align: center;
  }
  
  header h1 a {
    font-size: 32px;
    font-weight: bold;
  }
  
  .subscribe-section {
    background: white;
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 40px;
    text-align: center;
  }
  
  .subscribe-section input[type="email"] {
    width: 70%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
  }
  
  .subscribe-section button {
    padding: 12px 24px;
    background-color: #000;
    border: none;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
  }
  
  .category-block {
    margin-bottom: 24px;
  }
  
  .category-block h3 {
    font-size: 20px;
    border-left: 4px solid #000;
    padding-left: 8px;
    margin-top: 24px;
  }
  
  .post {
    padding: 16px;
    background: white;
    margin-bottom: 16px;
    border-radius: 6px;
  }
  
  .post h4 {
    margin: 0 0 8px 0;
    font-size: 18px;
  }
  
  .post .summary {
    color: #333;
  }
  
  .post .meta {
    font-size: 12px;
    color: #666;
    margin-top: 8px;
  }
  
  footer {
    text-align: center;
    padding: 30px 0;
    color: #666;
    font-size: 14px;
  }