.blog-list__container {
  padding-top: var(--header-offset, 120px);
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 15px;
  padding-right: 15px;
  padding-bottom: 40px;
  font-family: 'Arial', sans-serif;
  color: #333;
}

.blog-list__heading {
  text-align: center;
  font-size: 2.5em;
  color: #1a1a1a;
  margin-bottom: 15px;
  font-weight: bold;
}

.blog-list__description {
  text-align: center;
  font-size: 1.1em;
  color: #555;
  margin-bottom: 40px;
  line-height: 1.6;
}

.blog-list__timeline {
  position: relative;
  margin: 40px 0;
  padding: 20px 0;
}

.blog-list__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background-color: #e0e0e0;
  z-index: 1;
}

.blog-list__item {
  display: flex;
  margin-bottom: 60px;
  position: relative;
  z-index: 2;
}

.blog-list__item:nth-child(odd) {
  flex-direction: row-reverse;
}

.blog-list__date-marker {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  text-align: center;
  z-index: 3;
}

.blog-list__date {
  display: block;
  background-color: #007bff;
  color: #fff;
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 0.9em;
  font-weight: bold;
  white-space: nowrap;
}

.blog-list__content-wrapper {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  margin-left: calc(50% + 70px);
  margin-right: 20px;
  position: relative;
}

.blog-list__item:nth-child(odd) .blog-list__content-wrapper {
  margin-right: calc(50% + 70px);
  margin-left: 20px;
}

.blog-list__content-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.blog-list__image {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

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

.blog-list__text-content {
  flex-grow: 1;
}

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

.blog-list__title-link {
  color: #1a1a1a;
  text-decoration: none;
  transition: color 0.3s ease;
}

.blog-list__title-link:hover {
  color: #007bff;
}

.blog-list__summary {
  font-size: 0.95em;
  color: #666;
  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__keywords {
  margin-top: 10px;
  margin-bottom: 15px;
}

.blog-list__keyword {
  display: inline-block;
  background-color: #f0f0f0;
  color: #777;
  font-size: 0.8em;
  padding: 5px 10px;
  border-radius: 5px;
  margin-right: 8px;
  margin-bottom: 8px;
}

.blog-list__read-more {
  display: inline-block;
  background-color: #007bff;
  color: #fff;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
  font-size: 0.9em;
}

.blog-list__read-more:hover {
  background-color: #0056b3;
}

@media (max-width: 1024px) {
  .blog-list__timeline::before {
    left: 20px;
    transform: translateX(0);
  }

  .blog-list__item {
    flex-direction: column;
    margin-bottom: 40px;
  }

  .blog-list__item:nth-child(odd) {
    flex-direction: column;
  }

  .blog-list__date-marker {
    position: static;
    transform: translateX(0);
    text-align: left;
    width: auto;
    margin-left: 20px;
    margin-bottom: 15px;
  }

  .blog-list__date {
    background-color: transparent;
    color: #333;
    padding: 0;
    border-radius: 0;
    font-size: 1em;
    font-weight: bold;
  }

  .blog-list__content-wrapper {
    margin-left: 20px;
    margin-right: 20px;
    padding-left: 20px;
    border-left: 2px solid #007bff;
  }

  .blog-list__item:nth-child(odd) .blog-list__content-wrapper {
    margin-left: 20px;
    margin-right: 20px;
  }
}

@media (max-width: 768px) {
  .blog-list__heading {
    font-size: 2em;
  }

  .blog-list__description {
    font-size: 1em;
  }

  .blog-list__content-wrapper {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border-left: none;
  }

  .blog-list__date-marker {
    margin-left: 15px;
  }
  .blog-list__timeline::before {
    left: 15px;
  }
}

@media (max-width: 480px) {
  .blog-list__heading {
    font-size: 1.8em;
  }
  .blog-list__description {
    font-size: 0.9em;
  }
  .blog-list__read-more {
    padding: 8px 15px;
    font-size: 0.85em;
  }
  .blog-list__title {
    font-size: 1.2em;
  }
  .blog-list__summary {
    font-size: 0.9em;
  }
}