:root {
      --blog-list-primary-color: #0a58ca; 
      --blog-list-text-color: #333333; 
      --blog-list-light-text-color: #6c757d; 
      --blog-list-background-color: #f8f8f8; 
      --blog-list-card-background: #ffffff; 
      --blog-list-border-color: #dee2e6; 
      --blog-list-shadow: rgba(0, 0, 0, 0.08);
      --blog-list-shadow-hover: rgba(0, 0, 0, 0.15);
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      padding-bottom: 60px;
      background-color: var(--blog-list-background-color);
      color: var(--blog-list-text-color);
      font-family: Arial, sans-serif;
    }

    .blog-list__section {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .blog-list__heading {
      text-align: center;
      font-size: 2.2em;
      color: var(--blog-list-primary-color);
      margin-bottom: 50px;
      font-weight: bold;
    }

    .blog-list__timeline-container {
      position: relative;
      padding: 0 15px; 
    }

    
    .blog-list__timeline-container::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 20px; 
      width: 2px;
      background-color: var(--blog-list-border-color);
      z-index: 0;
    }

    .blog-list__item {
      display: flex;
      margin-bottom: 40px;
      position: relative;
      z-index: 1;
      align-items: flex-start;
    }

    
    .blog-list__timeline-point {
      width: 16px;
      height: 16px;
      background-color: var(--blog-list-primary-color);
      border: 3px solid var(--blog-list-card-background);
      border-radius: 50%;
      position: absolute;
      left: 13px; 
      top: 10px; 
      z-index: 2;
      box-shadow: 0 2px 5px var(--blog-list-shadow);
    }

    .blog-list__date-box {
      min-width: 100px; 
      padding: 10px 0;
      margin-left: 40px; 
      text-align: left;
    }

    .blog-list__date {
      font-size: 0.85em; 
      color: var(--blog-list-light-text-color);
      display: block;
      line-height: 1.2;
    }

    .blog-list__card {
      flex-grow: 1;
      background-color: var(--blog-list-card-background);
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--blog-list-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
      margin-left: 20px; 
    }

    .blog-list__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--blog-list-shadow-hover);
    }

    .blog-list__image-link {
      display: block;
      overflow: hidden;
      height: 0;
      padding-bottom: 56.25%; 
      position: relative;
    }

    .blog-list__image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-top-left-radius: 10px;
      border-top-right-radius: 10px;
    }

    .blog-list__content {
      padding: 20px;
    }

    .blog-list__title {
      font-size: 1.25em; 
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.3;
    }

    .blog-list__title-link {
      color: var(--blog-list-text-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .blog-list__title-link:hover {
      color: var(--blog-list-primary-color);
    }

    .blog-list__summary {
      font-size: 0.95em; 
      color: var(--blog-list-light-text-color);
      line-height: 1.6;
      margin-bottom: 15px;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
    }

    .blog-list__read-more-button {
      display: inline-block;
      background-color: var(--blog-list-primary-color);
      color: var(--blog-list-card-background);
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .blog-list__read-more-button:hover {
      background-color: #0056b3;
    }

    
    @media (min-width: 768px) {
      .blog-list__section {
        padding: 20px 30px;
      }
      .blog-list__timeline-container::before {
        left: 50%; 
        transform: translateX(-50%);
      }

      .blog-list__timeline-point {
        left: 50%;
        transform: translateX(-50%);
      }

      .blog-list__item {
        justify-content: space-between;
      }

      .blog-list__item:nth-child(odd) {
        flex-direction: row-reverse; 
      }

      .blog-list__item:nth-child(even) {
        flex-direction: row; 
      }

      .blog-list__date-box {
        width: 150px; 
        margin: 0;
        padding: 10px;
        text-align: center;
        position: relative;
      }

      .blog-list__item:nth-child(odd) .blog-list__date-box {
        margin-left: 20px; 
      }

      .blog-list__item:nth-child(even) .blog-list__date-box {
        margin-right: 20px; 
      }

      .blog-list__card {
        width: calc(50% - 100px); 
        max-width: 450px;
        margin: 0;
      }
    }

    
    @media (min-width: 1024px) {
      .blog-list__section {
        padding: 20px 40px;
      }
      .blog-list__date-box {
        width: 200px;
      }
      .blog-list__card {
        max-width: 500px;
        width: calc(50% - 120px);
      }
    }