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pre{margin:0;padding:15px;background:#f9f9f9;border:1px solid #e0e0e0;border-radius:4px;font-size:13px;line-height:1.6;overflow-x:auto;white-space:pre-wrap;word-wrap:break-word;max-height:400px;overflow-y:auto}.doc-metadata{margin-top:15px;padding:10px;background:#f0f0f0;border-radius:4px}.doc-metadata>strong{display:block;margin-bottom:8px;color:#333;font-size:14px}.doc-metadata pre{margin:0;padding:10px;background:#fff;border:1px solid #ddd;border-radius:4px;font-size:12px;overflow-x:auto}.error-section{background:#fff5f5;border-left:4px solid #f44336}.loading{text-align:center;padding:40px;color:#666;font-size:16px}.error-message{background:#fff5f5;color:#d32f2f;padding:15px;border-radius:4px;margin-bottom:20px;border-left:4px solid 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