:root {
    --blog-list-primary-bg: #1a1a1a;
    --blog-list-secondary-bg: #2a2a2a;
    --blog-list-text-color: #f0f0f0;
    --blog-list-accent-color: #ffcc00; 
    --blog-list-secondary-text-color: #aaaaaa;
    --blog-list-border-color: #3a3a3a;
    --blog-list-shadow-color: rgba(0, 0, 0, 0.5);
    --blog-list-card-radius: 12px;
    --blog-list-spacing: 24px;
  }

  .blog-list {
    padding-top: var(--header-offset, 120px);
    background-color: var(--blog-list-primary-bg);
    color: var(--blog-list-text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    padding-bottom: 60px;
    min-height: calc(100vh - var(--header-offset, 120px) - 60px); 
  }

  .blog-list__hero {
    text-align: center;
    padding: 40px var(--blog-list-spacing);
    max-width: 900px;
    margin: 0 auto;
  }

  .blog-list__hero-title {
    font-size: 2.2em;
    color: var(--blog-list-accent-color);
    margin-bottom: 15px;
    line-height: 1.2;
    font-weight: bold;
  }

  .blog-list__hero-description {
    font-size: 1.1em;
    color: var(--blog-list-secondary-text-color);
    margin-bottom: 30px;
  }

  .blog-list__timeline-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--blog-list-spacing);
  }

  .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__timeline-item {
    padding: 10px 0;
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--blog-list-spacing);
  }

  .blog-list__timeline-point {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--blog-list-accent-color);
    border-radius: 50%;
    z-index: 1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 3px solid var(--blog-list-primary-bg);
  }

  .blog-list__timeline-content {
    background-color: var(--blog-list-secondary-bg);
    padding: var(--blog-list-spacing);
    border-radius: var(--blog-list-card-radius);
    box-shadow: 0 4px 15px var(--blog-list-shadow-color);
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 500px;
    box-sizing: border-box;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

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

  .blog-list__timeline-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
  }

  .blog-list__timeline-date {
    display: block;
    font-size: 0.9em;
    color: var(--blog-list-secondary-text-color);
    margin-bottom: 10px;
  }

  .blog-list__timeline-title {
    font-size: 1.5em; 
    color: var(--blog-list-text-color);
    margin-bottom: 10px;
    line-height: 1.3;
    font-weight: bold;
  }

  .blog-list__timeline-link {
    text-decoration: none;
    color: inherit;
    display: block;
  }

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

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

  .blog-list__timeline-read-more {
    display: inline-block;
    color: var(--blog-list-accent-color);
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95em;
    transition: color 0.3s ease;
  }

  .blog-list__timeline-read-more:hover {
    color: #ffd700;
  }

  @media (min-width: 768px) {
    .blog-list__timeline-item {
      margin-bottom: var(--blog-list-spacing) * 1.5;
      flex-direction: row;
      justify-content: space-between;
      align-items: flex-start;
    }

    .blog-list__timeline-point {
      left: 50%;
      transform: translate(-50%, -50%);
    }

    .blog-list__timeline-content {
      width: calc(50% - var(--blog-list-spacing));
      max-width: none;
    }

    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content {
      margin-right: calc(50% + 20px);
      text-align: right;
    }
    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-image {
      float: right;
      margin-left: 15px;
      margin-right: 0;
    }
    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-date {
      text-align: right;
    }

    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content {
      margin-left: calc(50% + 20px);
      text-align: left;
    }
    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-image {
      float: left;
      margin-right: 15px;
      margin-left: 0;
    }
    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-date {
      text-align: left;
    }
    
    .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-content::after,
    .blog-list__timeline-item:nth-child(even) .blog-list__timeline-content::after {
      content: "";
      display: table;
      clear: both;
    }
  }

  @media (min-width: 1024px) {
    .blog-list__timeline-item {
      margin-bottom: var(--blog-list-spacing) * 2;
    }

    .blog-list__timeline-content {
      padding: var(--blog-list-spacing) * 1.5; 
    }

    .blog-list__hero-title {
      font-size: 2.5em;
    }
    .blog-list__hero-description {
      font-size: 1.2em;
    }
  }