diff --git a/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/index.tsx b/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/index.tsx
index d5302fa..c0fe7e9 100644
--- a/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/index.tsx
+++ b/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/index.tsx
@@ -12,7 +12,7 @@ import type { ActionType } from "@ant-design/pro-table";
 import ProTable from "@ant-design/pro-table";
 import LeftSelectTree from "@/pages/reports/settlementAccount/component/leftSelectTree";
 import PageTitleBox from "@/components/PageTitleBox";
-import { exportXlsxFromProColumnsExcelJS } from "@/utils/exportExcelFun";
+import { exportMonthlyRevenueAnalysisExcel } from "./monthlyRevenueExport";
 import { ValueType } from "exceljs";
 import moment from 'moment'
 import { handleGetBusinessItemSummary } from "../revenueQOQReport/service";
@@ -74,19 +74,26 @@ const monthlyRevenueAnalysis: React.FC<{ currentUser: CurrentUser }> = (props) =
                 format: 'YYYY-MM',
             }
         },
-        {
-            title: <div style={{ textAlign: 'center' }}>类别</div>,
-            width: 120,
-            dataIndex: "Item_Name",
-            hideInSearch: true,
-            ellipsis: true,
-        },
         {
             title: <div style={{ textAlign: 'center' }}>项目</div>,
-            width: 120,
-            dataIndex: "Serverpart_Name",
             hideInSearch: true,
-            ellipsis: true,
+            align: 'center',
+            children: [
+                {
+                    title: <div style={{ textAlign: 'center' }}>类别</div>,
+                    width: 120,
+                    dataIndex: "Item_Name",
+                    hideInSearch: true,
+                    ellipsis: true,
+                },
+                {
+                    title: <div style={{ textAlign: 'center' }}>项目</div>,
+                    width: 120,
+                    dataIndex: "Serverpart_Name",
+                    hideInSearch: true,
+                    ellipsis: true,
+                },
+            ]
         },
         {
             title: `本月${tableTitle?.thisMonthStart && tableTitle?.thisMonthEnd ? `(${tableTitle?.thisMonthStart}-${tableTitle?.thisMonthEnd})` : ""}`,
@@ -356,7 +363,7 @@ const monthlyRevenueAnalysis: React.FC<{ currentUser: CurrentUser }> = (props) =
                                     type="primary"
                                     onClick={(e) => {
                                         if (reqDetailList && reqDetailList.length > 0) {
-                                            exportXlsxFromProColumnsExcelJS(columns,
+                                            exportMonthlyRevenueAnalysisExcel(columns,
                                                 reqDetailList,
                                                 `月度营收分析${searchParams?.searchMonth ? moment(searchParams?.searchMonth).format('YYYYMM') : ""}`,
                                                 {
diff --git a/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/monthlyRevenueExport.ts b/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/monthlyRevenueExport.ts
new file mode 100644
index 0000000..54969be
--- /dev/null
+++ b/src/pages/reports/BusinessAnalysis/monthlyRevenueAnalysis/monthlyRevenueExport.ts
@@ -0,0 +1,331 @@
+// monthlyRevenueExport.ts - 月度营收分析专用导出方法
+import ExcelJS from 'exceljs';
+
+/** ======== 列类型（按需裁剪） ======== */
+type AnyCol = {
+    title?: any;
+    dataIndex?: string | (string | number)[];
+    children?: AnyCol[];
+    valueEnum?: Record<string | number, { text?: string } | string>;
+    renderText?: (text: any, record: any, index: number) => any;
+    hideInTable?: boolean;
+    valueType?: 'index' | string;
+    align?: 'left' | 'center' | 'right';
+};
+
+/** ========== 新增：拍平树形数据 ========== */
+function flattenTree<T extends Record<string, any>>(
+    list: T[] = [],
+    childrenKey = 'children',
+    out: T[] = []
+): T[] {
+    for (const node of list) {
+        // 先推当前节点（浅拷贝去掉 children，避免把对象树写入单元格）
+        const { [childrenKey]: kids, ...rest } = node as any;
+        out.push(rest as T);
+        if (Array.isArray(kids) && kids.length) {
+            flattenTree(kids, childrenKey, out);
+        }
+    }
+    return out;
+}
+
+/** 抽取 React 节点文本 */
+function extractText(node: any): string {
+    if (node == null || node === false) return '';
+    if (typeof node === 'string' || typeof node === 'number') return String(node);
+    const children = node?.props?.children;
+    if (Array.isArray(children)) return children.map(extractText).join('');
+    if (children != null) return extractText(children);
+    const html = node?.props?.dangerouslySetInnerHTML?.__html;
+    if (typeof html === 'string') return html.replace(/<[^>]+>/g, '');
+    return String(node ?? '');
+}
+
+/** dataIndex 路径取值 */
+const toPath = (di?: AnyCol['dataIndex']): (string | number)[] =>
+    Array.isArray(di) ? di : (typeof di === 'string' ? di.split('.') : []);
+const getByPath = (obj: any, path: (string | number)[]) =>
+    path.reduce((acc, k) => (acc == null ? acc : acc[k]), obj);
+
+/** 过滤 hideInTable（父级联动） */
+function pruneHiddenColumns(cols: AnyCol[]): AnyCol[] {
+    const walk = (arr: AnyCol[]): AnyCol[] =>
+        (arr || [])
+            .filter(col => !col?.hideInTable)
+            .map(col => {
+                if (col.children?.length) {
+                    const kids = walk(col.children);
+                    if (!kids.length) return null as any;
+                    return { ...col, children: kids };
+                }
+                return col;
+            })
+            .filter(Boolean);
+    return walk(cols);
+}
+
+/** 叶子列（有 dataIndex 的） */
+const getLeaves = (cols: AnyCol[]): AnyCol[] => {
+    const out: AnyCol[] = [];
+    const walk = (arr: AnyCol[]) => {
+        arr.forEach(c => {
+            if (c?.children?.length) {
+                walk(c.children!);
+            } else if (c && (c.dataIndex || c.valueType === 'index')) { // << 修改
+                out.push(c);
+            }
+        });
+    };
+    walk(cols);
+    return out;
+};
+
+/** 深度和列跨度 */
+const getDepth = (cols: AnyCol[]): number => {
+    const dfs = (c: AnyCol): number =>
+        c.children?.length ? 1 + Math.max(...c.children.map(dfs)) : 1;
+    return Math.max(...cols.map(dfs));
+};
+const getColSpan = (c: AnyCol): number =>
+    c.children?.length ? c.children.map(getColSpan).reduce((a, b) => a + b, 0) : 1;
+
+/** 构造多级表头矩阵 & 合并信息（不含顶部大标题/信息行） */
+function buildHeaderMatrix(cols: AnyCol[]) {
+    const depth = getDepth(cols);
+    const rows: string[][] = Array.from({ length: depth }, () => []);
+    let colCursor = 0;
+    const merges: Array<{ r1: number; c1: number; r2: number; c2: number }> = [];
+
+    const place = (list: AnyCol[], level: number) => {
+        list.forEach(col => {
+            const span = getColSpan(col);
+            const rowSpan = col.children?.length ? 1 : depth - level;
+            const title = extractText(col.title ?? '');
+
+            rows[level][colCursor] = title;
+            for (let i = 1; i < span; i++) rows[level][colCursor + i] = '';
+
+            if (span > 1 || rowSpan > 1) {
+                merges.push({ r1: level + 1, c1: colCursor + 1, r2: level + rowSpan, c2: colCursor + span });
+            }
+
+            if (col.children?.length) {
+                place(col.children, level + 1);
+            } else {
+                colCursor += 1;
+            }
+        });
+    };
+
+    place(cols, 0);
+    const maxLen = Math.max(...rows.map(r => r.length));
+    rows.forEach(r => { for (let i = 0; i < maxLen; i++) if (typeof r[i] === 'undefined') r[i] = ''; });
+    return { headerAOA: rows, merges, depth, columnCount: maxLen };
+}
+
+/** 单元格显示值（valueEnum / renderText / 原始值） */
+function getCellValue(col: AnyCol, record: any, rowIndex: number) {
+    // << 新增：序号列
+    if (col.valueType === 'index') return rowIndex + 1;
+
+    const raw = getByPath(record, toPath(col.dataIndex));
+    if (col.valueEnum) {
+        const ve = col.valueEnum[raw as any];
+        if (typeof ve === 'string') return ve;
+        if (ve?.text != null) return ve.text;
+    }
+    if (col.renderText) {
+        try { return col.renderText(raw, record, rowIndex); } catch { }
+    }
+    return raw;
+}
+
+/** 估算列宽（简单） */
+const estimateWidth = (v: any) => {
+    const s = (v ?? '').toString();
+    const len = Array.from(s).reduce((n, ch) => n + (/[^\x00-\xff]/.test(ch) ? 2 : 1), 0);
+    return Math.min(Math.max(len + 2, 8), 60);
+};
+
+export async function exportMonthlyRevenueAnalysisExcel(
+    rawColumns: AnyCol[],
+    dataSource: any[],
+    filename?: string,
+    options?: {
+        sheetName?: string;
+        chunkSize?: number;
+        topTitle?: string;                  // 顶部大标题（整表合并 + 居中）
+        infoRowLeft?: string;               // 标题下插入的左侧文字
+        infoRowRight?: string;              // 标题下插入的右侧文字（右对齐）
+        freezeHeader?: boolean;             // 冻结到哪一行（自动计算）
+        childrenKey?: string;
+    }
+) {
+    const {
+        sheetName = '数据',
+        chunkSize = 100_000,
+        topTitle,
+        infoRowLeft,
+        infoRowRight,
+        freezeHeader = true,
+        childrenKey = 'children',
+    } = options || {};
+
+    // === 新增：拍平树形数据 ===
+    const flatData = flattenTree<any>(Array.isArray(dataSource) ? dataSource : [], childrenKey);
+
+    const columns = pruneHiddenColumns(rawColumns);
+    const leafCols = getLeaves(columns);
+    if (!leafCols.length) throw new Error('无可导出的列（可能被 hideInTable 全部隐藏）');
+
+    const { headerAOA, merges, columnCount } = buildHeaderMatrix(columns);
+
+    const wb = new ExcelJS.Workbook();
+    wb.created = new Date();
+    wb.modified = new Date();
+
+    const total = flatData?.length ?? 0;
+    const totalSheets = Math.max(1, Math.ceil(total / chunkSize));
+
+    for (let si = 0; si < totalSheets; si++) {
+        const ws = wb.addWorksheet(totalSheets === 1 ? sheetName : `${sheetName}_${si + 1}`, {
+            views: [{ state: 'frozen' }],
+        });
+
+        // 1) 顶部大标题（可选）
+        let currentRowIndex = 1;
+        if (topTitle) {
+            const row = ws.getRow(currentRowIndex);
+            // 写入一个单元格，再合并整行
+            row.getCell(1).value = topTitle;
+            ws.mergeCells(currentRowIndex, 1, currentRowIndex, columnCount);
+            // 居中 + 加粗 + 较大字号
+            const cell = ws.getCell(currentRowIndex, 1);
+            cell.alignment = { horizontal: 'center', vertical: 'middle' };
+            cell.font = { bold: true, size: 14 };
+            row.height = 22;
+            currentRowIndex += 1;
+        }
+
+        // 2) 信息行（可选，左右结构）
+        if (infoRowLeft != null || infoRowRight != null) {
+            const row = ws.getRow(currentRowIndex);
+            // 左侧：合并 1..(columnCount/2)，左对齐
+            const split = Math.max(1, Math.floor(columnCount / 2));
+            if (infoRowLeft != null) {
+                row.getCell(1).value = infoRowLeft;
+                ws.mergeCells(currentRowIndex, 1, currentRowIndex, split);
+                const leftCell = ws.getCell(currentRowIndex, 1);
+                leftCell.alignment = { horizontal: 'left', vertical: 'middle' };
+                leftCell.font = { size: 11 };
+            }
+            // 右侧：合并 (split+1)..columnCount，右对齐
+            if (infoRowRight != null) {
+                row.getCell(split + 1).value = infoRowRight;
+                ws.mergeCells(currentRowIndex, split + 1, currentRowIndex, columnCount);
+                const rightCell = ws.getCell(currentRowIndex, split + 1);
+                rightCell.alignment = { horizontal: 'right', vertical: 'middle' };
+                rightCell.font = { size: 11 };
+            }
+            row.height = 18;
+            currentRowIndex += 1;
+        }
+
+        // 3) 多级表头（全部居中 + 加粗）
+        const headerStartRow = currentRowIndex;
+        headerAOA.forEach((r, idx) => {
+            const row = ws.getRow(headerStartRow + idx);
+            r.forEach((v, cIdx) => {
+                const cell = row.getCell(cIdx + 1);
+                cell.value = v;
+                cell.alignment = { horizontal: 'center', vertical: 'middle' };
+                cell.font = { bold: true };
+            });
+            row.height = 18;
+        });
+        // 应用表头合并
+        merges.forEach(m => {
+            ws.mergeCells(headerStartRow + (m.r1 - 1), m.c1, headerStartRow + (m.r2 - 1), m.c2);
+        });
+        currentRowIndex += headerAOA.length;
+
+        // 4) 数据（从 currentRowIndex 开始）
+        const start = si * chunkSize;
+        const end = Math.min(start + chunkSize, total);
+        const batch = flatData.slice(start, end);
+
+        // 收集第一列的值用于合并
+        const firstColumnValues: string[] = [];
+        for (let i = 0; i < batch.length; i++) {
+            const rec = batch[i];
+            const row = ws.getRow(currentRowIndex + i);
+            leafCols.forEach((col, j) => {
+                const cell = row.getCell(j + 1);
+                const cellValue = getCellValue(col, rec, start + i);
+                cell.value = cellValue;
+
+                // 设置单元格对齐方式
+                if (col.align) {
+                    cell.alignment = { horizontal: col.align, vertical: 'middle' };
+                }
+
+                // 收集第一列的值
+                if (j === 0) {
+                    firstColumnValues.push(String(cellValue || ''));
+                }
+            });
+        }
+
+        // 5) 第一列相同值的单元格合并
+        if (firstColumnValues.length > 0) {
+            let mergeStart = 0;
+            for (let i = 1; i <= firstColumnValues.length; i++) {
+                // 当到达末尾或值不同时，处理合并
+                if (i === firstColumnValues.length || firstColumnValues[i] !== firstColumnValues[mergeStart]) {
+                    if (i - mergeStart > 1) {
+                        // 合并第一列的单元格
+                        ws.mergeCells(
+                            currentRowIndex + mergeStart, 1,
+                            currentRowIndex + i - 1, 1
+                        );
+                        // 设置合并后单元格的对齐方式为居中
+                        const mergedCell = ws.getCell(currentRowIndex + mergeStart, 1);
+                        mergedCell.alignment = { horizontal: 'center', vertical: 'middle' };
+                    }
+                    mergeStart = i;
+                }
+            }
+        }
+
+        currentRowIndex += batch.length;
+
+        // 6) 列宽：基于表头 + 采样数据估算
+        const sampleRows = Math.min(batch.length, 200);
+        for (let c = 1; c <= columnCount; c++) {
+            const headerMax = Math.max(...headerAOA.map(r => estimateWidth(r[c - 1])));
+            let dataMax = 8;
+            for (let i = 0; i < sampleRows; i++) {
+                const v = leafCols[c - 1] ? getCellValue(leafCols[c - 1], batch[i], start + i) : '';
+                dataMax = Math.max(dataMax, estimateWidth(v));
+            }
+            ws.getColumn(c).width = Math.max(headerMax, dataMax);
+        }
+
+        // 7) 冻结窗格：冻结到（标题 + 信息行 + 表头）这一行的下一行
+        if (freezeHeader) {
+            // const freezeRow = (topTitle ? 1 : 0) + (infoRowLeft != null || infoRowRight != null ? 1 : 0) + headerAOA.length;
+            // ws.views = [{ state: 'frozen', ySplit: freezeRow }];
+        }
+    }
+
+    // 生成并下载（浏览器环境）
+    const buf = await wb.xlsx.writeBuffer();
+    const blob = new Blob([buf], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = `${filename}.xlsx`;
+    a.click();
+    URL.revokeObjectURL(url);
+}
\ No newline at end of file