.pdf-link-container {
    margin: 10px 0;
}

.pdf-toggle-btn {
    background-color: #0073aa;
    color: white;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s;
}

.pdf-toggle-btn:hover {
    background-color: #005a87;
}

.pdf-viewer-wrapper {
    margin-top: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
}

.pdf-controls {
    background-color: #f8f9fa;
    padding: 10px;
    border-bottom: 1px solid #ddd;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pdf-nav-btn, .pdf-zoom-btn {
    background-color: #0073aa;
    color: white;
    border: none;
    padding: 6px 12px;
    cursor: pointer;
    border-radius: 3px;
    font-size: 12px;
    transition: background-color 0.3s;
}

.pdf-nav-btn:hover, .pdf-zoom-btn:hover {
    background-color: #005a87;
}

.pdf-nav-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.pdf-page-info {
    font-size: 14px;
    color: #333;
    margin: 0 5px;
    white-space: nowrap;
}

.pdf-current-page {
    font-weight: bold;
}

.pdf-iframe {
    width: 100%;
    height: 600px;
    border: none;
    overflow: hidden;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .pdf-iframe {
        height: 400px;
    }
    
    .pdf-controls {
        padding: 8px;
        gap: 8px;
    }
    
    .pdf-nav-btn, .pdf-zoom-btn {
        padding: 5px 8px;
        font-size: 11px;
    }
    
    .pdf-page-info {
        font-size: 12px;
    }
}