.download-btn{padding:10px 20px;margin:10px 10px;background:#42b983;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px}.download-btn:hover{background:#359e75}.file-input{padding:8px 12px;margin:20px 0;border:1px solid #ccc;border-radius:4px;cursor:pointer}.result{margin-top:20px;padding:15px;border:1px solid #e0e0e0;border-radius:4px;background:#f9f9f9;text-align:left}pre{white-space:pre-wrap;word-wrap:break-word}.no-data{margin-top:20px;color:#f56c6c;padding:10px}