:root {
      --blog-list__primary-color: #007bff;
      --blog-list__secondary-color: #f8f9fa;
      --blog-list__text-color-dark: #333;
      --blog-list__text-color-medium: #666;
      --blog-list__text-color-light: #999;
      --blog-list__border-radius: 10px;
      --blog-list__box-shadow-light: 0 4px 12px rgba(0, 0, 0, 0.08);
      --blog-list__box-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      background-color: var(--blog-list__secondary-color);
      min-height: 100vh;
      color: var(--blog-list__text-color-dark);
      font-family: Arial, sans-serif;
      line-height: 1.6;
    }

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

    .blog-list__hero {
      text-align: center;
      padding: 40px 20px;
      margin-bottom: 30px;
      background-color: #fff;
      border-radius: var(--blog-list__border-radius);
      box-shadow: var(--blog-list__box-shadow-light);
    }

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

    .blog-list__hero-description {
      font-size: 1.1em;
      color: var(--blog-list__text-color-medium);
      max-width: 800px;
      margin: 0 auto;
    }

    .blog-list__section-title {
      font-size: 2em;
      text-align: center;
      margin-bottom: 40px;
      color: var(--blog-list__text-color-dark);
      position: relative;
      padding-bottom: 10px;
    }

    .blog-list__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--blog-list__primary-color);
      border-radius: 2px;
    }

    .blog-list__timeline {
      position: relative;
      padding: 20px 0;
      max-width: 900px;
      margin: 0 auto;
    }

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

    .blog-list__timeline-item {
      margin-bottom: 40px;
      position: relative;
      display: flex;
      justify-content: center;
      width: 100%;
    }

    .blog-list__timeline-dot {
      width: 20px;
      height: 20px;
      background-color: var(--blog-list__primary-color);
      border: 4px solid #fff;
      border-radius: 50%;
      position: absolute;
      left: 50%;
      top: 20px;
      transform: translateX(-50%);
      z-index: 1;
      box-shadow: 0 0 0 3px var(--blog-list__primary-color);
    }

    .blog-list__timeline-content {
      background-color: #fff;
      padding: 20px;
      border-radius: var(--blog-list__border-radius);
      box-shadow: var(--blog-list__box-shadow-light);
      position: relative;
      width: calc(100% - 60px);
      margin-left: 30px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

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

    .blog-list__timeline-image {
      width: 100%;
      height: auto;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      border-radius: calc(var(--blog-list__border-radius) - 5px) calc(var(--blog-list__border-radius) - 5px) 0 0;
      margin-bottom: 15px;
    }

    .blog-list__timeline-text-content {
      padding: 0 10px;
    }

    .blog-list__timeline-title {
      font-size: 1.25em;
      font-weight: bold;
      margin-bottom: 10px;
    }

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

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

    .blog-list__timeline-summary {
      font-size: 0.95em;
      color: var(--blog-list__text-color-medium);
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .blog-list__timeline-date {
      font-size: 0.85em;
      color: var(--blog-list__text-color-light);
      display: block;
      margin-bottom: 15px;
    }

    .blog-list__timeline-read-more {
      display: inline-block;
      padding: 10px 20px;
      background-color: var(--blog-list__primary-color);
      color: #fff;
      text-decoration: none;
      border-radius: 5px;
      font-size: 0.9em;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .blog-list__timeline-read-more:hover {
      background-color: #0056b3;
      transform: translateY(-2px);
    }

    @media (min-width: 768px) {
      .blog-list__container {
        padding: 30px;
      }

      .blog-list__hero {
        padding: 60px 30px;
      }

      .blog-list__hero-title {
        font-size: 3em;
      }

      .blog-list__section-title {
        font-size: 2.5em;
      }

      .blog-list__timeline::before {
        left: 50%;
      }

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

      .blog-list__timeline-item {
        margin-bottom: 60px;
        justify-content: space-between;
      }

      .blog-list__timeline-content {
        width: calc(50% - 40px);
        margin: 0;
      }

      .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content {
        margin-right: auto;
        transform: translateX(-20px);
      }

      .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content {
        margin-left: auto;
        transform: translateX(20px);
      }

      .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content:hover {
        transform: translateY(-5px) translateX(-20px);
      }
      .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content:hover {
        transform: translateY(-5px) translateX(20px);
      }

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

      .blog-list__timeline-item:nth-child(even) .blog-list__timeline-dot {
        left: calc(50% + 20px);
      }
    }

    @media (min-width: 1024px) {
      .blog-list__container {
        padding: 40px;
      }

      .blog-list__hero {
        padding: 80px 40px;
      }

      .blog-list__hero-title {
        font-size: 3.5em;
      }

      .blog-list__section-title {
        font-size: 3em;
      }
    }