:root {
      --primary-color: #007bff; 
      --secondary-color: #6c757d; 
      --text-color-dark: #343a40;
      --text-color-light: #f8f9fa;
      --background-light: #f8f9fa;
      --border-color: #dee2e6;
      --header-offset: 120px; 
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      padding-bottom: 40px;
      background-color: var(--background-light);
      font-family: 'Arial', sans-serif;
      color: var(--text-color-dark);
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 15px;
      padding-right: 15px;
    }

    .blog-list__heading {
      text-align: center;
      margin-bottom: 40px;
      font-size: 2.5em;
      color: var(--primary-color);
      padding-top: 20px;
    }

    .blog-list__timeline {
      position: relative;
      margin: 0 auto;
      padding: 20px 0;
    }

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

    .blog-list__item {
      padding: 10px 0;
      position: relative;
      width: 50%;
      left: 0; 
      margin-bottom: 40px;
      z-index: 1;
    }

    .blog-list__item:nth-child(even) {
      left: 50%; 
    }

    .blog-list__item-marker {
      position: absolute;
      width: 24px;
      height: 24px;
      right: -14px;
      background-color: var(--primary-color);
      border: 4px solid var(--background-light);
      top: 30px;
      border-radius: 50%;
      z-index: 2;
    }

    .blog-list__item:nth-child(even) .blog-list__item-marker {
      left: -10px; 
    }

    .blog-list__item-content {
      padding: 20px;
      background-color: #ffffff;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      position: relative;
      border: 1px solid var(--border-color);
      transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    }

    .blog-list__item-content:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .blog-list__item:nth-child(odd) .blog-list__item-content::after {
      content: '';
      position: absolute;
      top: 30px;
      right: -15px;
      border: medium solid transparent;
      border-left-color: #ffffff;
      border-width: 15px;
    }
    .blog-list__item:nth-child(odd) .blog-list__item-content::before {
      content: '';
      position: absolute;
      top: 30px;
      right: -17px;
      border: medium solid transparent;
      border-left-color: var(--border-color);
      border-width: 16px;
    }

    .blog-list__item:nth-child(even) .blog-list__item-content::after {
      content: '';
      position: absolute;
      top: 30px;
      left: -15px;
      border: medium solid transparent;
      border-right-color: #ffffff;
      border-width: 15px;
    }
    .blog-list__item:nth-child(even) .blog-list__item-content::before {
      content: '';
      position: absolute;
      top: 30px;
      left: -17px;
      border: medium solid transparent;
      border-right-color: var(--border-color);
      border-width: 16px;
    }

    .blog-list__item-image-wrapper {
      width: 100%;
      padding-bottom: 56.25%; 
      position: relative;
      overflow: hidden;
      border-radius: 8px;
      margin-bottom: 15px;
    }

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

    .blog-list__item-title {
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.4;
    }

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

    .blog-list__item-title-link:hover {
      color: var(--primary-color);
    }

    .blog-list__item-summary {
      font-size: 15px;
      color: var(--secondary-color);
      line-height: 1.6;
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3; 
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .blog-list__item-date {
      display: block;
      font-size: 13px;
      color: #999999; 
      margin-bottom: 15px;
      text-align: right; 
    }

    .blog-list__item:nth-child(even) .blog-list__item-date {
        text-align: left; 
    }

    .blog-list__item-read-more {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--text-color-light);
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-size: 14px;
      transition: background-color 0.3s ease;
      font-weight: bold;
    }

    .blog-list__item-read-more:hover {
      background-color: #0056b3; 
    }

    
    
    @media screen and (min-width: 768px) and (max-width: 1024px) {
      .blog-list__timeline::after {
        left: 20px; 
      }

      .blog-list__item {
        width: 100%;
        left: 0;
        padding-left: 60px; 
      }

      .blog-list__item:nth-child(even) {
        left: 0;
      }

      .blog-list__item-marker {
        left: 10px;
        right: auto;
      }

      .blog-list__item:nth-child(even) .blog-list__item-marker {
        left: 10px;
      }

      .blog-list__item-content::after,
      .blog-list__item-content::before {
        left: -15px !important;
        right: auto !important;
        border-left-color: transparent !important;
        border-right-color: #ffffff !important;
      }
      .blog-list__item-content::before {
        border-right-color: var(--border-color) !important;
      }
      .blog-list__item-date {
        text-align: left;
      }
    }

    
    @media screen and (max-width: 767px) {
      .blog-list__heading {
        font-size: 2em;
        margin-bottom: 30px;
      }

      .blog-list__timeline::after {
        left: 20px; 
      }

      .blog-list__item {
        width: 100%;
        left: 0;
        padding-left: 60px; 
      }

      .blog-list__item:nth-child(even) {
        left: 0;
      }

      .blog-list__item-marker {
        left: 10px;
        right: auto;
      }

      .blog-list__item:nth-child(even) .blog-list__item-marker {
        left: 10px;
      }

      .blog-list__item-content::after,
      .blog-list__item-content::before {
        left: -15px !important;
        right: auto !important;
        border-left-color: transparent !important;
        border-right-color: #ffffff !important;
      }
      .blog-list__item-content::before {
        border-right-color: var(--border-color) !important;
      }
      .blog-list__item-date {
        text-align: left;
      }
    }