traffic-audit-server/src/main/java/com/trafficaudit/reportexport/service/ReportExportService.java
@@ -3217,8 +3217,7 @@
                log.warn("汇总工作簿未找到同期备份母版(_备份_{}年{}月…),输出将保持母版现状(可能为 1-4 月骨架)", year, month);
            }
            dynamicSummaryYear(wb, year);
            applyTwoDecimalFormat(wb);
            autoFitContentColumns(wb); // 汇总表导出后按内容加宽列宽(只加宽不缩窄)
            applyTwoDecimalFormat(wb); // 汇总大表保留人工母版列宽/版式:不做 autoFit(长公式会把列宽顶爆)
            if (!wb.getCTWorkbook().isSetCalcPr()) wb.getCTWorkbook().addNewCalcPr();
            wb.getCTWorkbook().getCalcPr().setFullCalcOnLoad(true); // 还原/改写公式后打开即重算
            return toBytes(wb);