/* 书籍详情页专属样式：书籍信息+阅读按钮+书籍介绍 */
/* 书籍头部信息（封面+基础信息） */
.book-header {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    align-items: flex-start;
}
.book-cover {
    width: 200px;
    height: 250px;
    border: 1px solid #EEEEEE;
    border-radius: 2px;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #CCCCCC;
    flex-shrink: 0;
    min-height: 250px;
}
.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2px;
}
.book-basic-info {
    flex: 1;
    min-width: 280px;
}
.book-detail-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}
.book-meta-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #EEEEEE;
}
.book-meta-item {
    display: flex;
    align-items: center;
}
.meta-label {
    width: 80px;
    font-weight: 500;
    color: #333333;
    flex-shrink: 0;
}
.meta-value {
    color: #666666;
}
/* 立即阅读按钮（主视觉按钮，极简点睛） */
.read-btn {
    display: inline-block;
    padding: 10px 30px;
    background-color: #4682B4;
    color: #fff;
    text-decoration: none;
    border-radius: 2px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
}
.read-btn:hover {
    background-color: #396e9b;
    color: #fff;
}
/* 书籍介绍模块 */
.book-intro-section {
    margin-bottom: 40px;
}
.book-intro-desc {
    color: #666666;
    line-height: 1.8;
    text-align: justify;
}
.book-highlights {
    list-style-position: inside;
    color: #666666;
    line-height: 1.8;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
/* 相关书籍推荐 */
.related-books {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #EEEEEE;
}
.related-books-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.related-book-card {
    padding: 16px;
    border: 1px solid #EEEEEE;
    border-radius: 2px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    min-height: 80px;
}

.related-book-card:hover {
    border-color: #4682B4;
}

.related-book-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.related-book-author {
    font-size: 12px;
    color: #666666;
    margin-top: auto;
}
/* 响应式 - 手机端（适配封面+信息布局） */
@media (max-width: 768px) {
    .book-header {
        flex-direction: column;
        gap: 20px;
    }
    .book-cover {
        width: 150px;
        height: 225px;
        margin: 0 auto;
    }
    .book-basic-info {
        width: 100%;
    }
    .read-btn {
        width: 100%;
        text-align: center;
    }
    .related-books-list {
        grid-template-columns: repeat(2, 1fr);
    }
}