:root {
      --blog-list__primary-color: #2a6fdb;
      --blog-list__accent-color: #ffc107;
      --blog-list__text-color: #333333;
      --blog-list__secondary-text-color: #666666;
      --blog-list__date-color: #999999;
      --blog-list__background-color: #f8f9fa;
      --blog-list__card-background: #ffffff;
      --blog-list__border-radius: 12px;
      --blog-list__shadow: rgba(0, 0, 0, 0.08);
      --blog-list__shadow-hover: rgba(0, 0, 0, 0.15);
      --blog-list__spacing: 24px;
      --header-offset: 120px;
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      padding-bottom: calc(var(--blog-list__spacing) * 2);
      background-color: var(--blog-list__background-color);
      font-family: Arial, sans-serif;
      color: var(--blog-list__text-color);
      min-height: 100vh;
    }

    .blog-list__header {
      text-align: center;
      margin-bottom: calc(var(--blog-list__spacing) * 2);
      padding: var(--blog-list__spacing);
    }

    .blog-list__title {
      font-size: 2.5em;
      color: var(--blog-list__primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .blog-list__description {
      font-size: 1.1em;
      color: var(--blog-list__secondary-text-color);
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.6;
    }

    .blog-list__timeline {
      position: relative;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--blog-list__spacing);
    }

    .blog-list__timeline::after {
      content: '';
      position: absolute;
      width: 4px;
      background-color: var(--blog-list__primary-color);
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -2px;
      z-index: 0;
      opacity: 0.3;
    }

    .blog-list__timeline-item {
      padding: 10px 0;
      position: relative;
      background-color: inherit;
      width: 50%;
      margin-bottom: var(--blog-list__spacing);
      z-index: 1;
    }

    .blog-list__timeline-item:nth-child(odd) {
      left: 0;
      padding-right: calc(var(--blog-list__spacing) * 2);
      text-align: right;
    }

    .blog-list__timeline-item:nth-child(even) {
      left: 50%;
      padding-left: calc(var(--blog-list__spacing) * 2);
      text-align: left;
    }

    .blog-list__timeline-dot {
      content: '';
      position: absolute;
      width: 18px;
      height: 18px;
      background-color: var(--blog-list__primary-color);
      border: 3px solid var(--blog-list__card-background);
      top: 30px;
      border-radius: 50%;
      z-index: 2;
    }

    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-dot {
      right: -9px;
    }

    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-dot {
      left: -9px;
    }

    .blog-list__card {
      background-color: var(--blog-list__card-background);
      border-radius: var(--blog-list__border-radius);
      box-shadow: 0 4px 15px var(--blog-list__shadow);
      transition: all 0.3s ease;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .blog-list__card-image-wrapper {
      position: relative;
      width: 100%;
      padding-top: 56.25%;
      overflow: hidden;
      border-top-left-radius: var(--blog-list__border-radius);
      border-top-right-radius: var(--blog-list__border-radius);
    }

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

    .blog-list__card-content {
      padding: var(--blog-list__spacing);
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .blog-list__card-title {
      font-size: 1.25em;
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.3;
    }

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

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

    .blog-list__card-summary {
      font-size: 0.95em;
      color: var(--blog-list__secondary-text-color);
      line-height: 1.5;
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
      flex-grow: 1;
    }

    .blog-list__card-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 15px;
      padding-top: 15px;
      border-top: 1px solid #eee;
    }

    .blog-list__card-date {
      font-size: 0.85em;
      color: var(--blog-list__date-color);
    }

    .blog-list__card-link {
      display: inline-block;
      padding: 8px 15px;
      background-color: var(--blog-list__primary-color);
      color: var(--blog-list__card-background);
      text-decoration: none;
      border-radius: 6px;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
      font-weight: bold;
    }

    .blog-list__card-link:hover {
      background-color: #1a5bb3;
    }

    @media (max-width: 1024px) {
      .blog-list__timeline::after {
        left: 30px;
      }

      .blog-list__timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        left: 0;
        text-align: left;
      }

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

      .blog-list__timeline-dot {
        left: 21px;
        right: auto;
      }
    }

    @media (max-width: 768px) {
      .blog-list__title {
        font-size: 2em;
      }

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

      .blog-list__timeline {
        padding: 0 calc(var(--blog-list__spacing) / 2);
      }

      .blog-list__timeline::after {
        left: 20px;
      }

      .blog-list__timeline-item {
        padding-left: 50px;
        margin-bottom: calc(var(--blog-list__spacing) * 0.8);
      }

      .blog-list__timeline-dot {
        left: 11px;
        top: 25px;
      }

      .blog-list__card-content {
        padding: calc(var(--blog-list__spacing) * 0.8);
      }

      .blog-list__card-title {
        font-size: 1.15em;
      }

      .blog-list__card-summary {
        font-size: 0.9em;
      }

      .blog-list__card-link {
        padding: 6px 12px;
        font-size: 0.85em;
      }
    }

    @media (max-width: 480px) {
      .blog-list__title {
        font-size: 1.8em;
      }
      .blog-list__description {
        font-size: 0.95em;
      }
      .blog-list__timeline {
        padding: 0 10px;
      }
      .blog-list__timeline-item {
        margin-bottom: calc(var(--blog-list__spacing) * 0.6);
      }
    }