:root {
      --blog-list-primary-color: #0062cc;
      --blog-list-secondary-color: #004a99;
      --blog-list-text-color: #333333;
      --blog-list-light-text-color: #555555;
      --blog-list-date-color: #555555;
      --blog-list-bg-color: #f8f8f8;
      --blog-list-card-bg: #ffffff;
      --blog-list-border-radius: 10px;
      --blog-list-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      --blog-list-hover-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
      --header-offset: 120px;
    }

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

    .blog-list__hero {
      text-align: center;
      padding: 40px 20px;
      background-color: var(--blog-list-card-bg);
      margin-bottom: 30px;
      border-bottom: 1px solid #eee;
    }

    .blog-list__main-title {
      font-size: 2.5em;
      color: var(--blog-list-primary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

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

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

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

    .blog-list__timeline-container::after {
      content: '';
      position: absolute;
      width: 4px;
      background-color: var(--blog-list-primary-color);
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -2px;
      z-index: 1;
    }

    .blog-list__item {
      padding: 10px 0;
      position: relative;
      width: 50%;
      margin-bottom: 30px;
      z-index: 2;
    }

    .blog-list__item:nth-child(odd) {
      left: 0;
      padding-right: 40px;
    }

    .blog-list__item:nth-child(even) {
      left: 50%;
      padding-left: 40px;
    }

    .blog-list__date-point {
      width: 20px;
      height: 20px;
      background-color: var(--blog-list-primary-color);
      border: 4px solid var(--blog-list-card-bg);
      border-radius: 50%;
      position: absolute;
      top: 30px;
      z-index: 3;
    }

    .blog-list__item:nth-child(odd) .blog-list__date-point {
      right: -10px;
    }

    .blog-list__item:nth-child(even) .blog-list__date-point {
      left: -10px;
    }

    .blog-list__card {
      background-color: var(--blog-list-card-bg);
      border-radius: var(--blog-list-border-radius);
      box-shadow: var(--blog-list-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .blog-list__image-link {
      display: block;
    }

    .blog-list__image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      border-top-left-radius: var(--blog-list-border-radius);
      border-top-right-radius: var(--blog-list-border-radius);
      aspect-ratio: 16 / 9;
    }

    .blog-list__content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

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

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

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

    .blog-list__title-link:hover {
      color: var(--blog-list-primary-color);
    }

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

    .blog-list__read-more-link {
      display: inline-flex;
      align-items: center;
      color: var(--blog-list-primary-color);
      text-decoration: none;
      font-weight: bold;
      transition: color 0.3s ease;
      margin-top: auto;
    }

    .blog-list__read-more-link:hover {
      color: var(--blog-list-secondary-color);
    }

    .blog-list__arrow {
      margin-left: 5px;
      transition: transform 0.3s ease;
    }

    .blog-list__read-more-link:hover .blog-list__arrow {
      transform: translateX(5px);
    }

    @media (max-width: 767px) {
      .blog-list__main-title {
        font-size: 2em;
      }

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

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

      .blog-list__item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
        left: 0;
      }

      .blog-list__item:nth-child(odd),
      .blog-list__item:nth-child(even) {
        left: 0;
        padding-left: 50px;
        padding-right: 0;
      }

      .blog-list__date-point {
        left: 10px;
        right: auto;
      }
      
      .blog-list__card {
        flex-direction: column;
      }

      .blog-list__image {
        height: auto;
      }
    }

    @media (min-width: 768px) and (max-width: 1023px) {
      .blog-list__timeline-container::after {
        display: none;
      }

      .blog-list__timeline-container {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 20px;
      }

      .blog-list__item {
        width: auto;
        left: auto;
        padding: 0;
        margin-bottom: 0;
      }

      .blog-list__item:nth-child(odd),
      .blog-list__item:nth-child(even) {
        left: auto;
        padding: 0;
      }

      .blog-list__date-point {
        display: none;
      }

      .blog-list__image {
        height: 180px;
      }
    }

    @media (min-width: 1024px) {
      .blog-list__main-title {
        font-size: 3em;
      }
    }