.blog-list {
  padding-top: var(--header-offset, 120px);
  padding-bottom: 60px;
  background-color: #fcfcfc;
  color: #333;
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
}

.blog-list__header {
  text-align: center;
  margin-bottom: 50px;
  padding: 0 20px;
}

.blog-list__title {
  font-size: 2.5em;
  color: #0056b3;
  margin-bottom: 15px;
  font-weight: bold;
}

.blog-list__description {
  font-size: 1.1em;
  color: #444;
  max-width: 900px;
  margin: 0 auto;
}

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

.blog-list__timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20px;
  width: 4px;
  background-color: #ddd;
  height: 100%;
  z-index: 1;
}

.blog-list__item {
  position: relative;
  margin-bottom: 40px;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.blog-list__item-marker {
  width: 18px;
  height: 18px;
  background-color: #0056b3;
  border: 4px solid #ffffff;
  border-radius: 50%;
  flex-shrink: 0;
  margin-right: 20px;
  margin-left: 10px;
  z-index: 3;
  margin-top: 10px;
}

.blog-list__item-content-wrapper {
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 25px;
  flex-grow: 1;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  max-width: calc(100% - 58px);
}

.blog-list__item-content-wrapper:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.blog-list__item-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.blog-list__image-wrapper {
  width: 100%;
  padding-bottom: 56.25%;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
}

.blog-list__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

.blog-list__content {
  flex-grow: 1;
}

.blog-list__item-title {
  font-size: 1.4em;
  color: #0056b3;
  margin-bottom: 10px;
  font-weight: bold;
  line-height: 1.3;
}

.blog-list__item-summary {
  font-size: 1em;
  color: #444;
  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-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.9em;
  color: #555;
  margin-bottom: 18px;
}

.blog-list__item-keyword {
  background-color: #e0f2f7;
  color: #0056b3;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.85em;
  white-space: nowrap;
}

.blog-list__read-more {
  display: inline-block;
  background-color: #0056b3;
  color: #ffffff;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  border: none;
  cursor: pointer;
  font-size: 1em;
}

.blog-list__read-more:hover {
  background-color: #004085;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .blog-list__header {
    margin-bottom: 60px;
  }

  .blog-list__title {
    font-size: 3em;
  }

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

  .blog-list__item {
    justify-content: center;
    display: block;
  }

  .blog-list__item-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 30px;
    margin: 0;
  }

  .blog-list__item-content-wrapper {
    width: calc(50% - 40px);
    max-width: none;
    padding: 30px;
  }

  .blog-list__item:nth-child(odd) .blog-list__item-content-wrapper {
    margin-right: auto;
    margin-left: 0;
    transform: translateX(-15px);
  }

  .blog-list__item:nth-child(even) .blog-list__item-content-wrapper {
    margin-left: auto;
    margin-right: 0;
    transform: translateX(15px);
  }

  .blog-list__item-link {
    flex-direction: row;
    align-items: flex-start;
    gap: 25px;
  }

  .blog-list__image-wrapper {
    width: 40%;
    padding-bottom: calc(40% * 9 / 16);
    flex-shrink: 0;
  }

  .blog-list__content {
    width: 60%;
  }

  .blog-list__item-title {
    font-size: 1.5em;
  }

  .blog-list__item-summary {
    -webkit-line-clamp: 4;
  }
}

@media (min-width: 1024px) {
  .blog-list__timeline-container {
    padding: 0 50px;
  }

  .blog-list__item-content-wrapper {
    width: calc(50% - 60px);
    padding: 35px;
  }

  .blog-list__item:nth-child(odd) .blog-list__item-content-wrapper {
    transform: translateX(-20px);
  }

  .blog-list__item:nth-child(even) .blog-list__item-content-wrapper {
    transform: translateX(20px);
  }

  .blog-list__item-link {
    gap: 30px;
  }

  .blog-list__image-wrapper {
    width: 35%;
    padding-bottom: calc(35% * 9 / 16);
  }

  .blog-list__content {
    width: 65%;
  }

  .blog-list__item-title {
    font-size: 1.6em;
  }

  .blog-list__item-summary {
    -webkit-line-clamp: 5;
  }
}