:root {
      --primary-color: #0056b3; 
      --secondary-color: #f8f9fa; 
      --text-color: #1a1a1a;
      --light-text-color: #6c757d;
      --border-color: #e9ecef;
      --card-bg-color: #ffffff;
      --shadow-color: rgba(0, 0, 0, 0.08);
      --hover-shadow-color: rgba(0, 0, 0, 0.15);
      --timeline-line-color: #dee2e6; 
      --timeline-dot-color: var(--primary-color);
    }

    .blog-list {
      font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      line-height: 1.6;
      color: var(--text-color);
      padding: 20px;
      padding-top: var(--header-offset, 120px); 
      max-width: 1200px;
      margin: 0 auto;
    }

    .blog-list__header {
      text-align: center;
      margin-bottom: 40px;
    }

    .blog-list__title {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .blog-list__description {
      font-size: 1.1em;
      color: var(--light-text-color);
      max-width: 800px;
      margin: 0 auto;
    }

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

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

    .blog-list__timeline-item {
      display: flex;
      margin-bottom: 40px;
      position: relative;
      width: 100%;
      align-items: flex-start;
    }

    .blog-list__timeline-item:nth-child(even) {
      flex-direction: row-reverse; 
    }

    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content {
      margin-right: 30px; 
    }

    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content {
      margin-left: 30px; 
    }

    .blog-list__timeline-dot {
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 20px;
      background-color: var(--timeline-dot-color);
      border: 3px solid var(--card-bg-color);
      border-radius: 50%;
      z-index: 1;
      box-shadow: 0 0 0 2px var(--timeline-line-color);
    }

    .blog-list__timeline-date {
      position: absolute;
      top: 0;
      width: 120px; 
      font-size: 0.9em;
      color: var(--light-text-color);
      text-align: center;
      line-height: 1;
      z-index: 1;
    }

    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-date {
      left: calc(50% - 120px - 20px); 
    }

    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-date {
      right: calc(50% - 120px - 20px); 
    }

    .blog-list__timeline-content {
      flex: 1;
      background-color: var(--card-bg-color);
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      padding: 20px;
      border: 1px solid var(--border-color);
      width: calc(50% - 150px); 
    }

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

    .blog-list__item-image-wrapper {
      width: 100%;
      padding-top: 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: 1.4em;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.3;
    }

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

    .blog-list__item-link:hover {
      color: #003d82; 
      text-decoration: underline;
    }

    .blog-list__item-summary {
      font-size: 0.95em;
      color: var(--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__read-more {
      display: inline-block;
      margin-top: 10px;
      padding: 8px 15px;
      background-color: var(--primary-color);
      color: #ffffff;
      text-decoration: none;
      border-radius: 5px;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
    }

    .blog-list__read-more:hover {
      background-color: #003d82;
    }

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

      .blog-list__timeline-dot {
        left: 20px;
        transform: translateX(-50%);
      }

      .blog-list__timeline-date {
        left: 50px; 
        text-align: left;
        width: auto;
      }

      .blog-list__timeline-item {
        flex-direction: column; 
        align-items: flex-start;
      }

      .blog-list__timeline-item:nth-child(even) {
        flex-direction: column; 
      }

      .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content,
      .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content {
        margin-left: 50px; 
        margin-right: 0;
        width: calc(100% - 50px); 
      }
    }

    @media (max-width: 768px) {
      .blog-list {
        padding: 15px;
        padding-top: var(--header-offset, 120px);
      }

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

      .blog-list__description {
        font-size: 1em;
      }

      .blog-list__timeline-dot {
        width: 16px;
        height: 16px;
        border-width: 2px;
      }

      .blog-list__timeline-date {
        font-size: 0.85em;
        left: 40px; 
      }

      .blog-list__timeline-content {
        padding: 15px;
        width: calc(100% - 40px); 
        margin-left: 40px;
      }

      .blog-list__item-title {
        font-size: 1.2em;
      }

      .blog-list__item-summary {
        font-size: 0.9em;
        -webkit-line-clamp: 4; 
        min-height: 4em;
      }

      .blog-list__read-more {
        padding: 6px 12px;
        font-size: 0.85em;
      }
    }

    @media (max-width: 480px) {
      .blog-list__timeline-line {
        left: 15px;
      }
      .blog-list__timeline-dot {
        left: 15px;
      }
      .blog-list__timeline-date {
        left: 35px;
        font-size: 0.8em;
      }
      .blog-list__timeline-content {
        margin-left: 35px;
        width: calc(100% - 35px);
      }
      .blog-list__title {
        font-size: 1.8em;
      }
    }