.wuchai-file-preview {
    margin: 20px 0;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.wuchai-file-preview h3 {
    margin: 0;
    padding: 15px 20px;
    background: #f5f5f5;
    border-bottom: 1px solid #ddd;
    font-size: 18px;
}

.wuchai-file-preview .file-meta {
    padding: 10px 20px;
    background: #fafafa;
    border-bottom: 1px solid #eee;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.wuchai-file-preview .badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: #0073aa;
    border-radius: 3px;
}

.wuchai-file-preview .file-type {
    background: #0073aa;
}

.wuchai-file-preview .file-size {
    background: #666;
}

.wuchai-file-preview .download-count {
    background: #23282d;
}

.wuchai-file-preview .preview-container {
    padding: 20px;
    background: #fff;
}

.wuchai-file-preview .preview-container iframe {
    border: 1px solid #eee;
    border-radius: 4px;
}

.wuchai-file-preview .archive-preview {
    padding: 30px 20px;
    text-align: center;
}