body {
      font-family: 'Segoe UI', Arial, sans-serif;
      margin: 0;
      padding: 0;
      background: #f5f5f5;
      color: #222;
    }

    .contenedor {
      display: flex;
      flex-wrap: wrap;
      max-width: 1200px;
      margin: auto;
      padding: 20px;
      gap: 20px;
    }

    .main-news {
      flex: 2;
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }

    .news-card {
      background: #fff;
      flex: 1 1 48%;
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
      border-radius: 5px;
      overflow: hidden;
    }

    .news-card img {
      width: 100%;
      height: auto;
    }

    .news-content {
      padding: 15px;
    }

    .category {
      color: #d32f2f;
      font-size: 13px;
      text-transform: uppercase;
      font-weight: bold;
      margin-bottom: 5px;
    }

    .news-title {
      font-size: 18px;
      font-weight: bold;
      color: #003366;
      margin-bottom: 10px;
    }

    .date {
      color: #a1a1a1;
      font-size: 12px;
      margin-top: 10px;
    }

    .sidebar {
      flex: 1;
      background: #fff;
      padding: 15px;
      border-radius: 5px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    }

    .sidebar h3 {
      background: #d32f2f;
      color: white;
      padding: 10px;
      margin: -15px -15px 15px -15px;
      text-align: center;
    }

    .interest-item {
      border-left: 3px solid red;
      padding-left: 10px;
      margin-bottom: 15px;
    }

    .interest-date {
      font-size: 12px;
      color: #c10000;
      font-weight: bold;
    }

    .interest-title {
      font-size: 14px;
      font-weight: bold;
      margin-top: 5px;
    }

    @media (max-width: 768px) {
      .main-news, .sidebar {
        flex: 1 1 100%;
      }

      .news-card {
        flex: 1 1 100%;
      }
    }