.article-wrapper {
        /* Để chứa float */
        overflow: hidden;
        max-width: 900px;
        /* hoặc theo layout */
        margin: 0 auto;
        font-size: 1rem;
        line-height: 1.6;
        color: #333;
        text-align: justify;
        white-space: pre-line;
      }

      .article-image {
        float: left;
        width: 250px;
        /* kích thước ảnh */
        margin-right: 20px;
        margin-bottom: 10px;
        /* khoảng cách phía dưới ảnh */
        border-radius: 8px;
      }

      .article-image img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 8px;
        object-fit: cover;
      }

      .article-text {}
      @keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}


.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid #ccc;
  border-top: 2px solid #4a90e2;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}
     .book-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  max-width: 100%;
  white-space: normal;
  overflow: visible;
  text-overflow: initial;
  display: block;
  margin: 0 auto;
  text-align: center;
}

        /* Căn chỉnh nếu cần */
        .blog-card-content {
          max-width: 600px;
          margin: 20px auto;
          padding: 20px;
          background: #fff;
          border-radius: 8px;
          box-shadow: 0 4px 12px rgb(0 0 0 / 0.1);
          font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .blog-card-content h4 {
          font-size: 1.5rem;
          margin-bottom: 20px;
          color: #333;
          border-bottom: 2px solid #4a90e2;
          padding-bottom: 8px;
        }

        #audio-player {
          width: 100%;
          outline: none;
          margin-bottom: 25px;
          border-radius: 6px;
          box-shadow: 0 2px 8px rgb(0 0 0 / 0.1);
        }

        #playlist {
          list-style: none;
          padding: 0;
          margin: 0;
        }

        #playlist li {
          padding: 12px 16px;
          margin-bottom: 8px;
          background-color: #f7f9fc;
          border-radius: 6px;
          cursor: pointer;
          transition: background-color 0.3s ease, font-weight 0.3s ease;
          color: #555;
          box-shadow: 0 1px 3px rgb(0 0 0 / 0.05);
        }

        #playlist li:hover {
          background-color: #e1e9f8;
          color: #2a4d9b;
        }

        #playlist li.active {
          background-color: #4a90e2;
          color: white;
          font-weight: 600;
          box-shadow: 0 2px 10px rgb(74 144 226 / 0.6);
        }
        /* 1. Playlist: Chương đang phát nổi bật */
#playlist li {
  padding: 12px 16px;
  margin-bottom: 8px;
  background: #f7f9fc;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
  font-size: 16px;
  font-family: var(--first-font, Quicksand, sans-serif);
  display: flex;
  align-items: center;
  position: relative;
  border: none;
}

#playlist li.active {
  background: #4a90e2;
  color: #fff;
  font-weight: bold;
  box-shadow: 0 2px 10px rgba(74, 144, 226, 0.15);
}

#playlist li.active::before {
  content: "🔊";
  margin-right: 10px;
  font-size: 18px;
  display: inline-block;
}

#playlist li:hover {
  background: #e1e9f8;
  color: #2a4d9b;
}

/* 3. Bo góc, bóng đổ cho player và ảnh bìa */
#audio-player {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(74, 144, 226, 0.15);
  margin-bottom: 20px;
}

.article-image img,
.blog-card-image img {
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(34,34,34,0.10);
}
.related-books-section {
  padding: 40px 0;
  background-color: #f9fbff;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 30px;
}

.related-books-slider {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.related-book-item {
  min-width: 220px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.15);
  transition: transform 0.3s ease;
  cursor: pointer;
}

.related-book-item:hover {
  transform: translateY(-8px);
}

.related-book-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.related-book-content {
  padding: 15px 12px;
}

.related-book-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #34495e;
}

.related-book-title a {
  text-decoration: none;
  color: inherit;
}

.related-book-author {
  font-size: 0.9rem;
  color: #7f8c8d;
  margin-bottom: 8px;
}

.related-book-description {
  font-size: 0.9rem;
  color: #555;
  margin-bottom: 12px;
}

.related-book-rating {
  font-size: 0.9rem;
  color: #f39c12;
}

.related-book-card img {
  width: 100px;       /* Đặt chiều rộng nhỏ hơn, ví dụ 100px */
  height: 140px;      /* Chiều cao tương ứng để giữ tỉ lệ */
  object-fit: cover;  /* Giữ ảnh không bị méo, cắt vừa khung */
  border-radius: 10px;
  margin-bottom: 14px;
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.1);
  user-select: none;
  pointer-events: none;
}