/* 悬浮按钮样式 */
.floating-button {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    background: #0b274d;
    color: white;
    padding: 15px 25px;
    border-radius: 25px;
    text-decoration: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 9999 !important;
    font-size: 16px;
    font-weight: 500;
    display: block;
    pointer-events: auto;
}

.floating-button:hover {
    background: #007bff;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.floating-button::before {
    content: "📚";
    margin-right: 8px;
    font-size: 18px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .floating-button {
        bottom: 20px !important;
        right: 20px !important;
        padding: 12px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .floating-button {
        bottom: 15px !important;
        right: 15px !important;
        padding: 10px 15px;
        font-size: 13px;
    }
    
    .floating-button::before {
        font-size: 16px;
        margin-right: 6px;
    }
}