:root {
      --primary-color: #007bff;
      --secondary-color: #6c757d;
      --text-color-dark: #212529;
      --text-color-medium: #495057;
      --text-color-light: #6c757d;
      --background-light: #f8f9fa;
      --card-background: #ffffff;
      --border-color: #e9ecef;
      --shadow-light: 0 4px 8px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.1);
      --header-offset: 120px;
    }

    .blog-list {
      padding: 20px;
      padding-top: var(--header-offset, 120px);
      background-color: var(--background-light);
      font-family: Arial, sans-serif;
      color: var(--text-color-dark);
      max-width: 1200px;
      margin: 0 auto;
      position: relative;
    }

    .blog-list__header {
      text-align: center;
      margin-bottom: 40px;
      padding: 20px;
    }

    .blog-list__title {
      font-size: 2.5em;
      color: var(--text-color-dark);
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .blog-list__description {
      font-size: 1.1em;
      color: var(--text-color-medium);
      max-width: 700px;
      margin: 0 auto;
      line-height: 1.6;
    }

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

    .blog-list__timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 20px;
      width: 4px;
      background-color: var(--border-color);
      z-index: 1;
    }

    @media (min-width: 768px) {
      .blog-list__timeline::before {
        left: 50%;
        transform: translateX(-50%);
      }
    }

    .blog-list__item {
      position: relative;
      margin-bottom: 40px;
      padding-left: 60px;
      display: flex;
      flex-direction: column;
      background-color: var(--card-background);
      border-radius: 12px;
      box-shadow: var(--shadow-light);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
    }

    .blog-list__item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .blog-list__item::before {
      content: '';
      position: absolute;
      top: 15px;
      left: 14px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background-color: var(--primary-color);
      border: 3px solid var(--card-background);
      z-index: 2;
    }

    .blog-list__item-image-wrapper {
      width: 100%;
      padding-bottom: 56.25%;
      position: relative;
      overflow: hidden;
      border-top-left-radius: 12px;
      border-top-right-radius: 12px;
    }

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

    .blog-list__item-content {
      padding: 25px;
    }

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

    .blog-list__item-title {
      font-size: 1.25em;
      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: 1em;
      color: var(--text-color-medium);
      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-read-more {
      display: inline-block;
      padding: 8px 15px;
      background-color: var(--primary-color);
      color: var(--card-background);
      text-decoration: none;
      border-radius: 5px;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
    }

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

    @media (min-width: 768px) {
      .blog-list__item {
        padding-left: 0;
        width: calc(50% - 40px);
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 60px;
      }

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

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

      .blog-list__item::before {
        left: auto;
        right: -30px;
        top: 20px;
      }

      .blog-list__item:nth-child(even)::before {
        left: -30px;
        right: auto;
      }

      .blog-list__item-content {
        padding: 30px;
      }

      .blog-list__item-date {
        position: absolute;
        top: 25px;
        width: calc(50% - 80px);
        text-align: right;
        font-size: 0.9em;
        color: var(--text-color-light);
      }

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

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

    @media (min-width: 1024px) {
      .blog-list__timeline::before {
        left: 50%;
        transform: translateX(-50%);
      }

      .blog-list__item {
        width: calc(50% - 40px);
      }

      .blog-list__item:nth-child(odd) {
        margin-right: 50%;
        text-align: right;
      }

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

      .blog-list__item:nth-child(odd) .blog-list__item-image-wrapper {
        border-radius: 12px 12px 0 0;
      }
      .blog-list__item:nth-child(even) .blog-list__item-image-wrapper {
        border-radius: 12px 12px 0 0;
      }

      .blog-list__item:nth-child(odd)::before {
        right: -30px;
        left: auto;
      }

      .blog-list__item:nth-child(even)::before {
        left: -30px;
        right: auto;
      }

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

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