:root {
      --primary-color: #007bff; 
      --secondary-color: #6c757d; 
      --text-color: #333; 
      --light-gray: #f8f9fa;
      --border-color: #dee2e6;
      --card-shadow: rgba(0, 0, 0, 0.08);
      --card-shadow-hover: rgba(0, 0, 0, 0.15);
      --header-offset: 120px; 
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 15px;
      padding-right: 15px;
      padding-bottom: 60px; 
      position: relative;
    }

    .blog-list__title {
      text-align: center;
      color: var(--text-color);
      font-size: 2.5em; 
      margin-bottom: 40px;
      font-weight: bold;
      line-height: 1.2;
      padding-top: 30px;
    }

    .blog-list__description {
      text-align: center;
      color: var(--secondary-color);
      font-size: 1.1em; 
      margin-bottom: 50px;
      line-height: 1.6;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .blog-list__timeline {
      position: relative;
      margin-top: 20px;
      padding-bottom: 20px;
    }

    .blog-list__timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 4px;
      background-color: var(--border-color);
      transform: translateX(-50%);
      z-index: 0;
    }

    .blog-list__item {
      display: flex;
      justify-content: center;
      align-items: flex-start;
      margin-bottom: 60px;
      position: relative;
      width: 100%;
    }

    .blog-list__item:nth-child(odd) .blog-list__card {
      margin-right: 50px;
    }

    .blog-list__item:nth-child(even) .blog-list__card {
      margin-left: 50px;
    }

    .blog-list__item::after {
      content: '';
      position: absolute;
      top: 20px; 
      left: 50%;
      width: 20px;
      height: 20px;
      background-color: var(--primary-color);
      border: 4px solid #fff;
      border-radius: 50%;
      transform: translateX(-50%);
      z-index: 1;
      box-shadow: 0 0 0 2px var(--primary-color);
    }

    .blog-list__card {
      background-color: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 15px var(--card-shadow);
      transition: all 0.3s ease;
      width: calc(50% - 70px); 
      padding: 25px;
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: inherit;
    }

    .blog-list__card:hover {
      box-shadow: 0 8px 25px var(--card-shadow-hover);
      transform: translateY(-5px);
    }

    .blog-list__image-wrapper {
      width: 100%;
      padding-bottom: 56.25%; 
      position: relative;
      overflow: hidden;
      border-radius: 8px;
      margin-bottom: 20px;
      background-color: var(--light-gray);
    }

    .blog-list__cover-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      border-radius: 8px;
    }

    .blog-list__date {
      font-size: 0.875em; 
      color: #999;
      margin-bottom: 10px;
      display: block;
    }

    .blog-list__title-link {
      font-size: 1.25em; 
      font-weight: bold;
      color: var(--text-color);
      text-decoration: none;
      margin-bottom: 15px;
      line-height: 1.4;
      display: block;
      transition: color 0.2s ease;
    }

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

    .blog-list__summary {
      font-size: 1em; 
      color: #666;
      line-height: 1.6;
      margin-bottom: 20px;
      display: -webkit-box;
      -webkit-line-clamp: 3; 
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .blog-list__read-more {
      display: inline-block;
      background-color: var(--primary-color);
      color: #fff;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-size: 0.9em; 
      font-weight: 600;
      transition: background-color 0.3s ease;
      align-self: flex-start;
    }

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

    
    @media (max-width: 1024px) {
      .blog-list__timeline::before {
        left: 20px; 
        transform: translateX(0);
      }

      .blog-list__item {
        justify-content: flex-start;
        margin-bottom: 40px;
      }

      .blog-list__item::after {
        left: 20px; 
        transform: translateX(0);
      }

      .blog-list__item:nth-child(odd) .blog-list__card,
      .blog-list__item:nth-child(even) .blog-list__card {
        width: calc(100% - 80px); 
        margin-left: 60px; 
        margin-right: 0;
      }
    }

    @media (max-width: 768px) {
      .blog-list {
        padding-left: 10px;
        padding-right: 10px;
      }

      .blog-list__title {
        font-size: 2em; 
      }

      .blog-list__description {
        font-size: 1em; 
        margin-bottom: 30px;
      }

      .blog-list__item {
        margin-bottom: 30px;
      }

      .blog-list__item:nth-child(odd) .blog-list__card,
      .blog-list__item:nth-child(even) .blog-list__card {
        width: calc(100% - 60px); 
        margin-left: 40px;
      }

      .blog-list__timeline::before {
        left: 15px;
      }

      .blog-list__item::after {
        left: 15px;
        top: 15px;
        width: 16px;
        height: 16px;
        border: 3px solid #fff;
      }

      .blog-list__card {
        padding: 20px;
      }

      .blog-list__date {
        font-size: 0.8125em; 
      }

      .blog-list__title-link {
        font-size: 1.125em; 
        margin-bottom: 10px;
      }

      .blog-list__summary {
        font-size: 0.9375em; 
        margin-bottom: 15px;
      }

      .blog-list__read-more {
        padding: 8px 15px;
        font-size: 0.85em; 
      }
    }

    @media (max-width: 480px) {
      .blog-list__title {
        font-size: 1.8em; 
      }
      .blog-list__description {
        font-size: 0.9em; 
      }
      .blog-list__item:nth-child(odd) .blog-list__card,
      .blog-list__item:nth-child(even) .blog-list__card {
        width: calc(100% - 40px);
        margin-left: 30px;
      }
      .blog-list__timeline::before {
        left: 10px;
      }
      .blog-list__item::after {
        left: 10px;
      }
    }