fix(supply-chain): 修复组合单行表头遮挡明细

furniture-3d-system/src/app/supply-chain/management/custom-table/ComboLimitSection.tsx

@@ -248,6 +248,7 @@ export function ComboLimitSection({
                   numeric={column.numeric}
                   hint="组合限价 = 各子商品限价 × 组合明细数量后相加"
                   sortScope="all"
+                  stickyTop={0}
                   sort={sort ? { key: sort.field, direction: sort.direction } : null}
                   menuOpen={openSortKey === column.key}
                   onToggleMenu={() => setOpenSortKey((current) => (current === column.key ? null : column.key))}

furniture-3d-system/src/app/supply-chain/management/custom-table/CustomTableView.test.tsx

@@ -271,6 +271,7 @@ describe('限价管理', () => {
     expect(screen.getByText('运营甲')).toBeInTheDocument()
     expect(document.querySelectorAll('[data-limit-filter]')).toHaveLength(2)
     expect(screen.getByRole('button', { name: '筛选运营负责人' })).toBeInTheDocument()
+    expect((screen.getByRole('columnheader', { name: /^组合编码/ }) as HTMLElement).style.top).toBe('0px')
     const columnLabels = screen.getAllByRole('columnheader').map((cell) => (cell.textContent ?? '').replace(/[↕↑↓▾]/g, '').trim())
     expect(columnLabels.indexOf('运营负责人')).toBe(columnLabels.indexOf('组合编码') + 1)
     expect(screen.queryByRole('button', { name: '导出明细' })).not.toBeInTheDocument()

furniture-3d-system/src/app/supply-chain/management/custom-table/LimitTableHeaderCell.tsx

@@ -29,6 +29,8 @@ type Props = {
   numeric?: boolean
   hint?: string
   sortScope?: 'page' | 'all'
+  /** 单行表头传 0；双行表头（含分组行）默认沿用 CSS 的 30px */
+  stickyTop?: number
   onToggleMenu: () => void
   onCloseMenu: () => void
   onSort: (direction: 'asc' | 'desc') => void
@@ -52,6 +54,7 @@ export function LimitTableHeaderCell({
   numeric,
   hint,
   sortScope = 'page',
+  stickyTop,
   onToggleMenu,
   onCloseMenu,
   onSort,
@@ -135,6 +138,7 @@ export function LimitTableHeaderCell({
   return (
     <th
       scope="col"
+      style={stickyTop === undefined ? undefined : { top: stickyTop }}
       className={[
         styles.headTh,
         numeric ? styles.headThNumeric : '',