:root {
      --primary-color: #006400; 
      --primary-hover-color: #004d00; 
      --text-color-dark: #333333; 
      --text-color-medium: #555555; 
      --text-color-light: #999999; 
      --background-color-light: #ffffff;
      --background-color-page: #f9f9f9;
      --card-shadow-default: rgba(0, 0, 0, 0.1) 0px 4px 12px;
      --card-shadow-hover: rgba(0, 0, 0, 0.2) 0px 8px 24px;
      --border-radius-medium: 10px;
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--text-color-dark);
      background-color: var(--background-color-page);
      padding-bottom: 40px;
    }

    .blog-list__hero {
      text-align: center;
      padding: 40px 20px;
      background-color: var(--background-color-light);
      margin-bottom: 30px;
      box-shadow: var(--card-shadow-default);
      border-radius: var(--border-radius-medium);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

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

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

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

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

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

    .blog-list__item {
      position: relative;
      margin-bottom: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 20px;
    }

    .blog-list__date-point {
      position: absolute;
      left: 50%;
      top: 0;
      transform: translateX(-50%);
      background-color: var(--primary-color);
      color: var(--background-color-light);
      border-radius: 50%;
      width: 100px;
      height: 100px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9em;
      font-weight: bold;
      text-align: center;
      line-height: 1.2;
      box-shadow: var(--card-shadow-default);
      z-index: 1;
    }

    .blog-list__date {
      display: block;
      padding: 5px;
    }

    .blog-list__card {
      background-color: var(--background-color-light);
      border-radius: var(--border-radius-medium);
      box-shadow: var(--card-shadow-default);
      padding: 20px;
      width: 100%;
      max-width: 600px;
      display: flex;
      flex-direction: column;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      margin-top: 60px; 
    }

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

    .blog-list__image-link {
      display: block;
      margin-bottom: 15px;
      border-radius: calc(var(--border-radius-medium) - 2px);
      overflow: hidden;
    }

    .blog-list__image {
      width: 100%;
      height: 225px; 
      object-fit: cover;
      display: block;
    }

    .blog-list__content {
      flex-grow: 1;
    }

    .blog-list__title {
      font-size: 1.4em;
      margin-bottom: 10px;
      font-weight: bold;
    }

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

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

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

    .blog-list__read-more {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--background-color-light);
      padding: 10px 15px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .blog-list__read-more:hover {
      background-color: var(--primary-hover-color);
    }

    @media (min-width: 768px) {
      .blog-list__item {
        justify-content: space-between;
        margin-bottom: 80px;
      }

      .blog-list__date-point {
        top: 50%;
        transform: translate(-50%, -50%);
      }

      .blog-list__card {
        width: 45%;
        margin-top: 0;
      }

      .blog-list__item:nth-child(odd) .blog-list__card {
        margin-right: auto; 
        transform: translateX(-50px);
      }

      .blog-list__item:nth-child(even) .blog-list__card {
        margin-left: auto; 
        transform: translateX(50px);
      }

      .blog-list__item:nth-child(odd) .blog-list__card:hover {
        transform: translateY(-5px) translateX(-50px);
      }

      .blog-list__item:nth-child(even) .blog-list__card:hover {
        transform: translateY(-5px) translateX(50px);
      }

      .blog-list__image {
        height: 338px; 
      }

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

      .blog-list__title {
        font-size: 1.6em;
      }
    }

    @media (min-width: 1024px) {
      .blog-list__timeline-wrapper {
        padding: 40px 0;
      }

      .blog-list__item {
        padding: 0 40px;
      }

      .blog-list__image {
        height: 450px; 
      }

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

      .blog-list__title {
        font-size: 1.8em;
      }
    }