:root {
      --blog-list-primary-text: #333333;
      --blog-list-secondary-text: #555555;
      --blog-list-tertiary-text: #888888;
      --blog-list-accent-color: #007bff; 
      --blog-list-background-light: #ffffff;
      --blog-list-background-grey: #f8f9fa;
      --blog-list-border-color: #e0e0e0;
      --blog-list-shadow-color: rgba(0, 0, 0, 0.1);
      --blog-list-shadow-hover-color: rgba(0, 0, 0, 0.2);
    }

    .blog-list {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--blog-list-primary-text);
      background-color: var(--blog-list-background-grey);
    }

    .blog-list__hero {
      background-color: var(--blog-list-background-light);
      padding: 40px 20px;
      text-align: center;
      margin-bottom: 20px;
      padding-top: var(--header-offset, 120px); 
    }

    .blog-list__hero-content {
      max-width: 800px;
      margin: 0 auto;
    }

    .blog-list__hero-title {
      font-size: 2.5em;
      color: var(--blog-list-primary-text);
      margin-bottom: 15px;
      font-weight: 700;
      line-height: 1.2;
    }

    .blog-list__hero-description {
      font-size: 1.1em;
      color: var(--blog-list-secondary-text);
      line-height: 1.5;
      max-width: 700px;
      margin: 0 auto;
    }

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

    .blog-list__timeline {
      position: relative;
      padding: 0;
      list-style: none;
      margin-top: 50px; 
    }

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

    
    @media (max-width: 767px) {
      .blog-list__timeline::before {
        left: 20px; 
        transform: translateX(0);
      }
    }

    .blog-list__item {
      position: relative;
      margin-bottom: 40px;
      z-index: 1;
    }

    
    .blog-list__item::before {
      content: '';
      position: absolute;
      top: 10px; 
      left: 50%;
      width: 18px;
      height: 18px;
      background-color: var(--blog-list-accent-color);
      border: 3px solid var(--blog-list-background-light);
      border-radius: 50%;
      transform: translateX(-50%);
      z-index: 2;
    }

    @media (max-width: 767px) {
      .blog-list__item::before {
        left: 20px; 
        transform: translateX(-50%);
      }
      .blog-list__item-content {
        margin-left: 50px; 
      }
    }

    .blog-list__item-content {
      background-color: var(--blog-list-background-light);
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--blog-list-shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .blog-list__item-link {
      text-decoration: none;
      color: inherit;
      display: block;
      padding: 20px;
      display: flex; 
      flex-direction: column;
      height: 100%;
    }

    .blog-list__item-image {
      width: 100%;
      height: 200px; 
      object-fit: cover;
      border-radius: 8px;
      margin-bottom: 15px;
    }

    .blog-list__item-title {
      font-size: 1.4em;
      font-weight: 700;
      color: var(--blog-list-primary-text);
      margin-bottom: 10px;
      line-height: 1.3;
    }

    .blog-list__item-summary {
      font-size: 1em;
      color: var(--blog-list-secondary-text);
      margin-bottom: 15px;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 3; 
      -webkit-box-orient: vertical;
      text-overflow: ellipsis;
      flex-grow: 1; 
    }

    .blog-list__item-date {
      font-size: 0.85em;
      color: var(--blog-list-tertiary-text);
      margin-top: 10px;
      margin-bottom: 15px;
      display: block;
    }

    .blog-list__read-more {
      display: inline-block;
      margin-top: auto; 
      padding: 8px 15px;
      background-color: var(--blog-list-accent-color);
      color: var(--blog-list-background-light);
      text-decoration: none;
      border-radius: 5px;
      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 (min-width: 768px) {
      .blog-list__item {
        width: 50%;
        padding: 0; 
      }

      .blog-list__item:nth-child(odd) {
        float: left;
        clear: both;
        padding-right: 70px; 
      }

      .blog-list__item:nth-child(even) {
        float: right;
        clear: both;
        padding-left: 70px; 
      }

      .blog-list__item::before {
        left: 50%; 
        transform: translateX(-50%);
      }

      .blog-list__item:nth-child(odd) .blog-list__item-link {
        text-align: right;
      }
      .blog-list__item:nth-child(odd) .blog-list__read-more {
        align-self: flex-end;
      }

      .blog-list__item-date {
        position: absolute;
        top: 10px; 
        font-size: 0.9em;
        color: var(--blog-list-tertiary-text);
        white-space: nowrap;
        background-color: transparent;
        font-weight: normal;
        padding: 0;
        margin-top: 0;
        margin-bottom: 0;
      }

      .blog-list__item:nth-child(odd) .blog-list__item-date {
        left: auto;
        right: calc(50% + 30px); 
        text-align: right;
      }

      .blog-list__item:nth-child(even) .blog-list__item-date {
        left: calc(50% + 30px); 
        right: auto;
        text-align: left;
      }
    }

    
    .blog-list__timeline::after {
      content: '';
      display: block;
      clear: both;
    }