:root {
      --header-offset: 120px;
      --blog-list-bg: #f5f7fa;
      --blog-card-bg: #ffffff;
      --primary-text-color: #333333;
      --secondary-text-color: #666666;
      --date-text-color: #999999;
      --brand-color: #28a745;
      --brand-color-hover: #218838;
      --border-color: #e0e0e0;
      --shadow-color: rgba(0, 0, 0, 0.08);
      --shadow-hover-color: rgba(0, 0, 0, 0.15);
    }

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

    .blog-list__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    @media (min-width: 768px) {
      .blog-list__container {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .blog-list__container {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .blog-list__item {
      background-color: var(--blog-card-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 12px var(--shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      border: 1px solid var(--border-color);
    }

    .blog-list__item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--shadow-hover-color);
    }

    .blog-list__item-image-wrapper {
      width: 100%;
      padding-top: 56.25%;
      position: relative;
      background-color: #e9ecef;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .blog-list__item-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

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

    .blog-list__item-title {
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.3;
      color: var(--primary-text-color);
    }

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

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

    .blog-list__item-summary {
      font-size: 15px;
      color: var(--secondary-text-color);
      margin-bottom: 15px;
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
      flex-grow: 1;
    }

    .blog-list__item-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: auto;
      padding-top: 15px;
      border-top: 1px solid var(--border-color);
    }

    .blog-list__item-date {
      font-size: 13px;
      color: var(--date-text-color);
    }

    .blog-list__item-link {
      display: inline-block;
      padding: 8px 15px;
      background-color: var(--brand-color);
      color: #ffffff;
      text-decoration: none;
      border-radius: 5px;
      font-size: 14px;
      transition: background-color 0.3s ease;
    }

    .blog-list__item-link:hover {
      background-color: var(--brand-color-hover);
    }

    @media (min-width: 768px) {
      .blog-list__container--timeline {
        display: block;
        position: relative;
        padding-left: 50px;
      }

      .blog-list__container--timeline::before {
        content: '';
        position: absolute;
        left: 20px;
        top: 0;
        bottom: 0;
        width: 4px;
        background-color: var(--border-color);
        border-radius: 2px;
      }

      .blog-list__item {
        margin-bottom: 40px;
        position: relative;
        padding-left: 50px;
        max-width: calc(100% - 70px);
        margin-left: auto;
        box-shadow: 0 4px 12px var(--shadow-color);
      }

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

      .blog-list__item::before {
        content: '';
        position: absolute;
        left: -32px;
        top: 25px;
        width: 20px;
        height: 20px;
        background-color: var(--brand-color);
        border: 4px solid var(--blog-list-bg);
        border-radius: 50%;
        z-index: 1;
        box-shadow: 0 0 0 2px var(--brand-color);
      }

      .blog-list__item-date {
        position: absolute;
        left: -120px;
        top: 25px;
        width: 100px;
        text-align: right;
        font-weight: bold;
        color: var(--secondary-text-color);
      }

      .blog-list__item:nth-child(odd) .blog-list__item-date {
        left: auto;
        right: -120px;
        text-align: left;
      }
    }

    @media (min-width: 1024px) {
      .blog-list__container--timeline {
        padding-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .blog-list__container--timeline::before {
        left: 50%;
        transform: translateX(-2px);
      }

      .blog-list__item {
        width: 45%;
        max-width: 45%;
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        display: flex;
      }

      .blog-list__item:nth-child(even) {
        margin-left: calc(50% + 50px);
      }

      .blog-list__item:nth-child(odd) {
        margin-right: calc(50% + 50px);
        flex-direction: row-reverse;
      }

      .blog-list__item::before {
        left: 50%;
        transform: translateX(-50%);
        border: 4px solid var(--blog-list-bg);
      }

      .blog-list__item-date {
        width: 120px;
        top: 20px;
        text-align: right;
        left: auto;
        right: calc(50% + 70px);
      }

      .blog-list__item:nth-child(even) .blog-list__item-date {
        left: calc(50% + 70px);
        right: auto;
        text-align: left;
      }

      .blog-list__item-content {
        order: 2;
      }

      .blog-list__item:nth-child(odd) .blog-list__item-image-wrapper {
        order: 2;
        margin-left: 20px;
      }
      .blog-list__item:nth-child(odd) .blog-list__item-content {
        order: 1;
        margin-right: 20px;
      }
    }