:root {
      --primary-bg-color: #1a1a1a;
      --secondary-bg-color: #2a2a2a;
      --text-color-light: #f0f0f0;
      --text-color-medium: #b0b0b0;
      --text-color-dark: #888888;
      --accent-color: #4CAF50;
      --border-color: #3a3a3a;
      --shadow-color: rgba(0, 0, 0, 0.5);
      --card-border-radius: 10px;
      --header-offset: 120px;
    }

    .blog-list {
      background-color: var(--primary-bg-color);
      color: var(--text-color-light);
      padding-top: var(--header-offset);
      padding-bottom: 40px;
      min-height: 100vh;
      font-family: Arial, sans-serif;
    }

    .blog-list__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      position: relative;
    }

    .blog-list__title {
      text-align: center;
      font-size: 2.5em;
      margin-bottom: 40px;
      color: var(--accent-color);
      padding-top: 30px;
      font-weight: bold;
    }

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

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

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

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

    .blog-list__item-dot {
      position: absolute;
      width: 18px;
      height: 18px;
      background-color: var(--accent-color);
      border-radius: 50%;
      z-index: 1;
      left: 50%;
      transform: translateX(-50%);
      top: 50%;
      margin-top: -9px;
      border: 3px solid var(--primary-bg-color);
      box-shadow: 0 0 0 3px var(--accent-color);
    }

    .blog-list__item-date {
      color: var(--text-color-medium);
      font-size: 0.9em;
      margin-bottom: 10px;
      text-align: center;
      padding: 5px 10px;
      background-color: var(--secondary-bg-color);
      border-radius: 5px;
      border: 1px solid var(--border-color);
    }

    .blog-list__item-content {
      padding: 20px;
      flex-grow: 1;
    }

    .blog-list__item-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: var(--card-border-radius) var(--card-border-radius) 0 0;
      margin-bottom: 15px;
    }

    .blog-list__item-title {
      font-size: 1.3em;
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.4;
    }

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

    .blog-list__item-title-link:hover {
      color: var(--accent-color);
    }

    .blog-list__item-summary {
      color: var(--text-color-medium);
      font-size: 0.95em;
      line-height: 1.6;
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .blog-list__item-link {
      display: inline-block;
      background-color: var(--accent-color);
      color: var(--text-color-light);
      padding: 8px 18px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .blog-list__item-link:hover {
      background-color: #388E3C;
      transform: scale(1.05);
    }

    @media (min-width: 768px) {
      .blog-list__timeline::after {
        left: 50%;
      }

      .blog-list__item {
        width: calc(50% - 40px);
        margin-bottom: 40px;
        flex-direction: row;
        text-align: left;
        position: relative;
        left: 0;
        right: auto;
      }

      .blog-list__item-dot {
        top: 50%;
        left: auto;
        transform: translateY(-50%);
      }

      .blog-list__item-date {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        white-space: nowrap;
        background-color: transparent;
        border: none;
        color: var(--accent-color);
        font-weight: bold;
        font-size: 1.1em;
      }

      .blog-list__item--left {
        margin-right: calc(50% + 20px);
      }

      .blog-list__item--left .blog-list__item-dot {
        right: -40px;
        left: auto;
      }

      .blog-list__item--left .blog-list__item-date {
        right: -150px;
        text-align: right;
      }

      .blog-list__item--right {
        margin-left: calc(50% + 20px);
      }

      .blog-list__item--right .blog-list__item-dot {
        left: -40px;
        right: auto;
      }

      .blog-list__item--right .blog-list__item-date {
        left: -150px;
        text-align: left;
      }

      .blog-list__item-image {
        width: 40%;
        height: auto;
        min-height: 180px;
        border-radius: var(--card-border-radius) 0 0 var(--card-border-radius);
        margin-bottom: 0;
        margin-right: 20px;
      }

      .blog-list__item--right .blog-list__item-image {
        order: 2;
        border-radius: 0 var(--card-border-radius) var(--card-border-radius) 0;
        margin-left: 20px;
        margin-right: 0;
      }
      .blog-list__item--right .blog-list__item-content {
        order: 1;
      }
    }

    @media (max-width: 767px) {
      .blog-list__title {
        font-size: 2em;
        margin-bottom: 30px;
      }

      .blog-list__timeline::after {
        left: 18px;
      }

      .blog-list__item {
        width: 100%;
        padding-left: 50px;
        margin-bottom: 25px;
        flex-direction: column;
        text-align: center;
        left: 0;
        right: auto;
      }

      .blog-list__item-dot {
        left: 18px;
        transform: translateX(-50%);
        top: 25px;
        margin-top: 0;
      }

      .blog-list__item-date {
        position: static;
        transform: none;
        margin-bottom: 10px;
        font-size: 0.85em;
        color: var(--text-color-dark);
      }

      .blog-list__item-image {
        width: 100%;
        height: 180px;
        border-radius: var(--card-border-radius) var(--card-border-radius) 0 0;
        margin-bottom: 15px;
      }

      .blog-list__item-content {
        padding: 15px;
      }

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

      .blog-list__item-summary {
        font-size: 0.9em;
        -webkit-line-clamp: 4;
      }
    }

    @media (min-width: 768px) and (max-width: 1024px) {
      .blog-list__item {
        width: calc(50% - 30px);
      }
      .blog-list__item--left {
        margin-right: calc(50% + 15px);
      }
      .blog-list__item--right {
        margin-left: calc(50% + 15px);
      }
      .blog-list__item--left .blog-list__item-dot {
        right: -35px;
      }
      .blog-list__item--right .blog-list__item-dot {
        left: -35px;
      }
      .blog-list__item--left .blog-list__item-date {
        right: -130px;
      }
      .blog-list__item--right .blog-list__item-date {
        left: -130px;
      }
      .blog-list__item-image {
        min-height: 150px;
      }
    }