:root {
      --blog-list__primary-color: #007bff; 
      --blog-list__text-color: #333333;
      --blog-list__heading-color: #222222;
      --blog-list__date-color: #666666;
      --blog-list__summary-color: #555555;
      --blog-list__card-bg-color: #ffffff;
      --blog-list__border-color: #e0e0e0;
      --blog-list__timeline-line-color: #cccccc;
      --blog-list__timeline-dot-color: var(--blog-list__primary-color);

      --blog-list__card-border-radius: 12px;
      --blog-list__spacing-sm: 10px;
      --blog-list__spacing-md: 20px;
      --blog-list__spacing-lg: 30px;
      --blog-list__font-size-sm: 14px;
      --blog-list__font-size-md: 16px;
      --blog-list__font-size-lg: 18px;
      --blog-list__font-size-xl: 20px;
    }

    .blog-list {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--blog-list__text-color);
      padding: var(--blog-list__spacing-md) 0;
      padding-top: var(--header-offset, 120px); 
      max-width: 1200px;
      margin: 0 auto;
      box-sizing: border-box;
    }

    .blog-list__heading {
      text-align: center;
      color: var(--blog-list__heading-color);
      margin-bottom: var(--blog-list__spacing-lg);
      font-size: 2em;
      padding: 0 var(--blog-list__spacing-md);
    }

    .blog-list__timeline-container {
      position: relative;
      padding: var(--blog-list__spacing-md) 0;
    }

    .blog-list__timeline-container::before {
      content: '';
      position: absolute;
      width: 4px;
      background-color: var(--blog-list__timeline-line-color);
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -2px;
      z-index: 1;
    }

    .blog-list__item {
      padding: var(--blog-list__spacing-sm) 0;
      position: relative;
      width: 50%;
      left: 0;
      clear: both;
      margin-bottom: var(--blog-list__spacing-lg);
      box-sizing: border-box;
    }

    .blog-list__item--right {
      left: 50%;
      padding-left: var(--blog-list__spacing-lg);
    }

    .blog-list__item--left {
      padding-right: var(--blog-list__spacing-lg);
      transform: translateX(-100%);
    }

    .blog-list__item::after {
      content: '';
      position: absolute;
      width: 16px;
      height: 16px;
      background-color: var(--blog-list__timeline-dot-color);
      border-radius: 50%;
      top: 50%;
      right: -8px; 
      transform: translateY(-50%);
      z-index: 2;
      border: 2px solid var(--blog-list__card-bg-color); 
    }

    .blog-list__item--right::after {
      left: -8px; 
      right: auto;
    }

    .blog-list__date {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 120px;
      font-size: var(--blog-list__font-size-sm);
      color: var(--blog-list__date-color);
      text-align: right;
      right: calc(100% + var(--blog-list__spacing-sm));
    }

    .blog-list__item--right .blog-list__date {
      left: calc(100% + var(--blog-list__spacing-sm));
      text-align: left;
    }

    .blog-list__card {
      background-color: var(--blog-list__card-bg-color);
      border-radius: var(--blog-list__card-border-radius);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
      height: 100%;
    }

    .blog-list__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .blog-list__card-image-wrapper {
      width: 100%;
      padding-top: 56.25%; 
      position: relative;
      overflow: hidden;
    }

    .blog-list__card-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .blog-list__card-content {
      padding: var(--blog-list__spacing-md);
    }

    .blog-list__card-title {
      font-size: var(--blog-list__font-size-xl);
      font-weight: bold;
      margin-top: 0;
      margin-bottom: var(--blog-list__spacing-sm);
      color: var(--blog-list__heading-color);
      line-height: 1.3;
    }

    .blog-list__card-title-link {
      text-decoration: none;
      color: var(--blog-list__heading-color);
      transition: color 0.3s ease;
    }

    .blog-list__card-title-link:hover {
      color: var(--blog-list__primary-color);
    }

    .blog-list__card-summary {
      font-size: var(--blog-list__font-size-md);
      color: var(--blog-list__summary-color);
      margin-bottom: var(--blog-list__spacing-md);
      display: -webkit-box;
      -webkit-line-clamp: 3; 
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .blog-list__card-link {
      display: inline-block;
      background-color: var(--blog-list__primary-color);
      color: var(--blog-list__card-bg-color);
      padding: var(--blog-list__spacing-sm) var(--blog-list__spacing-md);
      border-radius: 5px;
      text-decoration: none;
      font-size: var(--blog-list__font-size-sm);
      transition: background-color 0.3s ease;
    }

    .blog-list__card-link:hover {
      background-color: #0056b3;
    }

    
    
    @media (max-width: 1024px) {
      .blog-list__timeline-container::before {
        left: var(--blog-list__spacing-md);
        margin-left: 0;
      }

      .blog-list__item {
        width: 100%;
        left: 0;
        padding-left: calc(var(--blog-list__spacing-md) * 2 + 4px); 
        padding-right: var(--blog-list__spacing-md);
        transform: translateX(0);
      }

      .blog-list__item--right,
      .blog-list__item--left {
        left: 0;
        padding-left: calc(var(--blog-list__spacing-md) * 2 + 4px);
        padding-right: var(--blog-list__spacing-md);
      }

      .blog-list__item::after,
      .blog-list__item--right::after,
      .blog-list__item--left::after {
        left: calc(var(--blog-list__spacing-md) + 2px); 
        right: auto;
        top: var(--blog-list__spacing-md);
        transform: translateY(-50%);
      }

      .blog-list__date {
        position: static;
        width: auto;
        text-align: left;
        font-size: var(--blog-list__font-size-sm);
        color: var(--blog-list__date-color);
        margin-bottom: var(--blog-list__spacing-sm);
        transform: translateY(0);
        padding-left: calc(var(--blog-list__spacing-md) * 2 + 4px); 
      }

      .blog-list__item--right .blog-list__date,
      .blog-list__item--left .blog-list__date {
        left: auto;
        text-align: left;
      }
      
      .blog-list__card-content {
        padding-top: var(--blog-list__spacing-sm);
      }
    }

    @media (max-width: 767px) {
      .blog-list {
        padding-left: var(--blog-list__spacing-sm);
        padding-right: var(--blog-list__spacing-sm);
      }

      .blog-list__heading {
        font-size: 1.8em;
      }

      .blog-list__item {
        padding-left: calc(var(--blog-list__spacing-md) + var(--blog-list__spacing-sm) + 4px); 
        padding-right: var(--blog-list__spacing-sm);
      }
      .blog-list__timeline-container::before {
        left: var(--blog-list__spacing-sm);
      }
      .blog-list__item::after,
      .blog-list__item--right::after,
      .blog-list__item--left::after {
        left: calc(var(--blog-list__spacing-sm) + 2px);
      }
      .blog-list__date {
        padding-left: calc(var(--blog-list__spacing-md) + var(--blog-list__spacing-sm) + 4px);
      }
    }