:root {
      --blog-list-bg: #1a1a1a;
      --blog-list-text-color: #f0f0f0;
      --blog-list-accent-color: #ffd700;
      --blog-list-card-bg: #2a2a2a;
      --blog-list-card-shadow: rgba(0, 0, 0, 0.3);
      --blog-list-card-shadow-hover: rgba(0, 0, 0, 0.6);
      --blog-list-date-color: #aaa;
      --blog-list-summary-color: #ccc;
      --blog-list-border-color: #444;
      --header-offset: 120px; 
    }

    .blog-list {
      font-family: 'Arial', sans-serif;
      background-color: var(--blog-list-bg);
      color: var(--blog-list-text-color);
      padding-top: var(--header-offset);
      min-height: 100vh;
    }

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

    .blog-list__main-title {
      font-size: 2.5em;
      color: var(--blog-list-accent-color);
      margin-bottom: 15px;
      line-height: 1.2;
    }

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

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

    .blog-list__timeline-container {
      position: relative;
      padding: 10px 0;
    }

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

    .blog-list__item {
      padding: 10px 0;
      position: relative;
      background-color: var(--blog-list-card-bg);
      border-radius: 10px;
      margin-bottom: 30px;
      box-shadow: 0 4px 15px var(--blog-list-card-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      align-items: center;
      min-height: 200px;
    }

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

    .blog-list__item::after {
      content: '';
      position: absolute;
      width: 18px;
      height: 18px;
      background-color: var(--blog-list-accent-color);
      border: 3px solid var(--blog-list-bg);
      top: 50%;
      transform: translateY(-50%);
      border-radius: 50%;
      z-index: 1;
      left: 50%;
      margin-left: -9px;
    }

    .blog-list__date-wrapper {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: calc(50% - 40px);
      text-align: right;
      padding-right: 20px;
      left: 0;
      display: none;
    }

    .blog-list__date {
      font-size: 0.9em;
      color: var(--blog-list-date-color);
      white-space: nowrap;
    }

    .blog-list__content-wrapper {
      padding: 20px;
      width: 100%;
      position: relative;
    }

    .blog-list__image-link {
      display: block;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
    }

    .blog-list__image {
      width: 100%;
      padding-bottom: 56.25%; 
      background-size: cover;
      background-position: center;
      border-radius: 8px;
      transition: transform 0.3s ease;
    }

    .blog-list__item:hover .blog-list__image {
      transform: scale(1.05);
    }

    .blog-list__title {
      font-size: 1.3em;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .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-accent-color);
    }

    .blog-list__summary {
      font-size: 0.95em;
      color: var(--blog-list-summary-color);
      margin-bottom: 15px;
      line-height: 1.6;
      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(--blog-list-accent-color);
      color: var(--blog-list-bg);
      padding: 8px 15px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.9em;
      transition: background-color 0.3s ease, color 0.3s ease;
    }

    .blog-list__read-more:hover {
      background-color: #e0b000;
      color: var(--blog-list-bg);
    }

    @media (max-width: 767px) {
      .blog-list__main-title {
        font-size: 2em;
      }
      .blog-list__description {
        font-size: 1em;
      }
      .blog-list__timeline-container::after {
        left: 20px;
        margin-left: 0;
      }
      .blog-list__item {
        margin-left: 40px;
        width: calc(100% - 40px);
        flex-direction: column;
        align-items: flex-start;
      }
      .blog-list__item::after {
        left: -20px;
        margin-left: 0;
      }
      .blog-list__date-wrapper {
        position: static;
        transform: none;
        width: auto;
        padding-right: 0;
        text-align: left;
        margin-bottom: 10px;
        display: block;
        left: auto;
        right: auto;
      }
      .blog-list__date {
        font-size: 0.85em;
        color: var(--blog-list-date-color);
      }
      .blog-list__content-wrapper {
        padding: 0;
        width: 100%;
      }
      .blog-list__image-link {
        width: 100%;
        margin-bottom: 10px;
      }
      .blog-list__title {
        font-size: 1.2em;
      }
      .blog-list__summary {
        font-size: 0.9em;
        -webkit-line-clamp: 4;
      }
    }

    @media (min-width: 768px) and (max-width: 1023px) {
      .blog-list__timeline-container {
        padding: 10px 20px;
      }
      .blog-list__item {
        width: calc(100% - 40px);
        margin-left: 20px;
        margin-right: 20px;
        flex-direction: column;
        align-items: flex-start;
      }
      .blog-list__item::after {
        left: 50%;
        margin-left: -9px;
      }
      .blog-list__date-wrapper {
        position: static;
        transform: none;
        width: auto;
        padding-right: 0;
        text-align: left;
        margin-bottom: 10px;
        display: block;
        left: auto;
        right: auto;
      }
      .blog-list__title {
        font-size: 1.35em;
      }
      .blog-list__summary {
        font-size: 0.95em;
      }
    }

    @media (min-width: 1024px) {
      .blog-list__item {
        width: calc(50% - 40px);
        margin-left: 0;
        margin-right: 0;
        min-height: 250px;
      }

      .blog-list__item:nth-child(odd) {
        float: left;
        clear: both;
        text-align: right;
        padding-right: 40px;
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
      }

      .blog-list__item:nth-child(even) {
        float: right;
        clear: both;
        text-align: left;
        padding-left: 40px;
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
      }

      .blog-list__item:nth-child(odd)::after {
        left: calc(100% + 18px);
        margin-left: 0;
      }

      .blog-list__item:nth-child(even)::after {
        left: -18px;
        margin-left: 0;
      }

      .blog-list__item:nth-child(odd) .blog-list__date-wrapper {
        display: block;
        left: auto;
        right: calc(100% + 40px);
        text-align: right;
        width: auto;
        padding-right: 0;
      }

      .blog-list__item:nth-child(even) .blog-list__date-wrapper {
        display: block;
        left: calc(100% + 40px);
        right: auto;
        text-align: left;
        width: auto;
        padding-left: 0;
      }

      .blog-list__item:nth-child(odd) .blog-list__content-wrapper {
        padding-right: 0;
      }

      .blog-list__item:nth-child(even) .blog-list__content-wrapper {
        padding-left: 0;
      }

      .blog-list__item:nth-child(odd) .blog-list__image-link {
        margin-right: 0;
      }

      .blog-list__item:nth-child(even) .blog-list__image-link {
        margin-left: 0;
      }

      .blog-list__timeline-container::after {
        left: 50%;
        margin-left: -2px;
      }
      
      .blog-list__title {
        font-size: 1.4em;
      }
      .blog-list__summary {
        font-size: 1em;
      }
    }