/* 书籍浮动窗口 - 独立样式 */
.book-float-window {
    position: fixed;
    top: 100px;
    right: 30px;
    z-index: 98;
    width: 180px;
    background: #fff;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
}
.book-float-window.show {
    opacity: 1;
    visibility: visible;
}
.book-float-window:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}
.book-float-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.book-float-title {
    text-align: center;
    margin-top: 10px;
    font-size: 14px;
    color: #f02c0d;
    font-weight: bold;
}
@media (max-width: 992px) {
    .book-float-window {
        display: none !important;
    }
}