:root {
      --blog-list__primary-color: #0056b3; 
      --blog-list__text-color: #333333;
      --blog-list__light-text-color: #666666;
      --blog-list__date-color: #999999;
      --blog-list__background-color: #f9f9f9;
      --blog-list__card-background: #ffffff;
      --blog-list__border-color: #e0e0e0;
      --blog-list__shadow-color: rgba(0, 0, 0, 0.08);
      --blog-list__hover-shadow-color: rgba(0, 0, 0, 0.15);
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      padding-bottom: 40px;
      background-color: var(--blog-list__background-color);
      font-family: Arial, sans-serif;
      color: var(--blog-list__text-color);
      line-height: 1.6;
    }

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

    .blog-list__heading {
      text-align: center;
      margin-bottom: 40px;
      color: var(--blog-list__primary-color);
      font-size: 2.5em;
      font-weight: bold;
    }

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

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

    .blog-list__timeline-wrapper::before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      width: 4px;
      background-color: var(--blog-list__border-color);
      height: 100%;
      transform: translateX(-50%);
      z-index: 1;
    }

    .blog-list__timeline-item {
      margin-bottom: 60px;
      position: relative;
      width: 50%;
      padding: 10px 0;
    }

    .blog-list__timeline-item:nth-child(odd) {
      left: 0;
      padding-right: 60px; 
    }

    .blog-list__timeline-item:nth-child(even) {
      left: 50%;
      padding-left: 60px; 
    }

    .blog-list__timeline-item::after {
      content: '';
      position: absolute;
      width: 20px;
      height: 20px;
      background-color: var(--blog-list__primary-color);
      border: 4px solid var(--blog-list__card-background);
      top: 20px;
      border-radius: 50%;
      z-index: 2;
    }

    .blog-list__timeline-item:nth-child(odd)::after {
      right: -10px; 
      transform: translateX(50%);
    }

    .blog-list__timeline-item:nth-child(even)::after {
      left: -10px; 
      transform: translateX(-50%);
    }

    .blog-list__timeline-card {
      background-color: var(--blog-list__card-background);
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--blog-list__shadow-color);
      transition: all 0.3s ease;
      overflow: hidden;
      padding: 20px;
    }

    .blog-list__timeline-card:hover {
      box-shadow: 0 8px 20px var(--blog-list__hover-shadow-color);
      transform: translateY(-5px);
    }

    .blog-list__timeline-image-wrapper {
      width: 100%;
      padding-top: 56.25%; 
      background-size: cover;
      background-position: center;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .blog-list__timeline-date {
      font-size: 0.85em;
      color: var(--blog-list__date-color);
      margin-bottom: 10px;
      display: block;
      text-align: right;
    }
    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-date {
      text-align: left;
    }

    .blog-list__timeline-title {
      font-size: 1.25em; 
      font-weight: bold;
      margin-bottom: 10px;
    }

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

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

    .blog-list__timeline-summary {
      font-size: 0.95em; 
      color: var(--blog-list__light-text-color);
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
      min-height: 3em; 
    }

    .blog-list__timeline-read-more {
      display: inline-block;
      padding: 8px 15px;
      background-color: var(--blog-list__primary-color);
      color: var(--blog-list__card-background);
      text-decoration: none;
      border-radius: 5px;
      font-size: 0.9em;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .blog-list__timeline-read-more:hover {
      background-color: #004494; 
      transform: translateY(-2px);
    }

    @media (max-width: 1024px) {
      .blog-list__container {
        padding: 0 15px;
      }
      .blog-list__timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        left: 0;
      }

      .blog-list__timeline-item::after {
        left: -10px;
        right: auto;
        transform: translateX(-50%);
      }

      .blog-list__timeline-wrapper::before {
        left: 25px; 
        transform: translateX(0);
      }

      .blog-list__timeline-item:nth-child(odd) {
        padding-right: 0;
      }

      .blog-list__timeline-item:nth-child(even) {
        padding-left: 60px;
      }

      .blog-list__timeline-item:nth-child(odd)::after {
        left: -10px;
        right: auto;
        transform: translateX(-50%);
      }
      .blog-list__timeline-item .blog-list__timeline-date {
        text-align: left;
      }
    }

    @media (max-width: 768px) {
      .blog-list__heading {
        font-size: 2em;
      }
      .blog-list__description {
        font-size: 1em;
      }
      .blog-list__timeline-wrapper::before {
        left: 20px; 
      }
      .blog-list__timeline-item {
        padding-left: 50px;
        margin-bottom: 40px;
      }
      .blog-list__timeline-item::after {
        width: 16px;
        height: 16px;
        border-width: 3px;
        left: -8px;
        top: 15px;
      }
      .blog-list__timeline-card {
        padding: 15px;
      }
      .blog-list__timeline-title {
        font-size: 1.1em;
      }
      .blog-list__timeline-summary {
        font-size: 0.9em;
      }
      .blog-list__timeline-read-more {
        padding: 6px 12px;
        font-size: 0.85em;
      }
    }

    @media (max-width: 480px) {
      .blog-list__container {
        padding: 0 10px;
      }
      .blog-list__heading {
        font-size: 1.8em;
        margin-bottom: 30px;
      }
      .blog-list__description {
        margin-bottom: 40px;
      }
      .blog-list__timeline-item {
        padding-left: 40px;
        margin-bottom: 30px;
      }
      .blog-list__timeline-wrapper::before {
        left: 15px;
      }
      .blog-list__timeline-item::after {
        width: 14px;
        height: 14px;
        border-width: 2px;
        left: -7px;
        top: 12px;
      }
    }