diff --git a/src/modules/finance/pages/FinanceCustomerArapView.test.ts b/src/modules/finance/pages/FinanceCustomerArapView.test.ts
index 526c5f8f..1c188656 100644
--- a/src/modules/finance/pages/FinanceCustomerArapView.test.ts
+++ b/src/modules/finance/pages/FinanceCustomerArapView.test.ts
@@ -210,6 +210,8 @@ describe('FinanceCustomerArapView G2 operations', () => {
     expect(page).toContain('<el-button v-if="canViewSource" size="small" plain type="primary" @click="openDetail(row)"><Eye :size="15" />详情</el-button>')
     expect(page).toContain("@click=\"openMutation(row, 'SUBMIT')\"")
     expect(page).toContain("@click=\"openMutation(row, 'ADJUST')\"")
+    expect(page).toContain("row.sourceSystem !== 'FIRSTLEG'")
+    expect(page).toContain("detail.sourceSystem !== 'FIRSTLEG'")
     expect(page).not.toMatch(/<template #actions[\s\S]*?<el-button[^>]*\blink\b/)
     expect(page).toContain('white-space: nowrap')
   })
diff --git a/src/modules/finance/pages/FinanceCustomerArapView.vue b/src/modules/finance/pages/FinanceCustomerArapView.vue
index f41f3a0e..bcd32203 100644
--- a/src/modules/finance/pages/FinanceCustomerArapView.vue
+++ b/src/modules/finance/pages/FinanceCustomerArapView.vue
@@ -323,7 +323,7 @@ watch(() => [route.name, String(route.params.feeSourceId || '')], ([name, feeSou
       <section v-if="!customersError && !loadError" class="surface-panel table-panel">
         <DataTable v-model:page="page" v-model:page-size="pageSize" :data="rows" :columns="columns" :loading="loading" :total="total" preference-key="finance-customer-arap-table" aria-label="客户应收应付列表" row-key="id" empty-text="暂无客户应收应付数据" @selection-change="onSelectionChange" @update:page="load()" @update:page-size="page = 1; load()">
         <template #toolbar-actions><div class="generation-actions"><el-button v-if="canExport" :loading="exportBusy" :disabled="loading || exportBusy" @click="exportFeeSources"><Download :size="16" />导出Excel</el-button><template v-if="canCreateStatement"><el-button @click="openGeneration('BY_CUTOFF')"><FilePlus2 :size="16" />按截止日期生成</el-button><el-button type="primary" :disabled="!selectedRows.length" @click="openGeneration('SELECTED')"><FilePlus2 :size="16" />按勾选生成</el-button></template></div></template>
-        <template #actions="{ row }"><div class="row-actions"><template v-if="row.feeSourceId"><el-button v-if="canViewSource" size="small" plain type="primary" @click="openDetail(row)"><Eye :size="15" />详情</el-button><el-button v-if="canEditSource && ['DRAFT','REJECTED'].includes(row.reviewStatus) && row.status === 'AVAILABLE'" size="small" plain @click="openMutation(row, 'EDIT')"><Pencil :size="15" />编辑</el-button><el-button v-if="canEditSource && ['DRAFT','REJECTED'].includes(row.reviewStatus) && row.status === 'AVAILABLE'" size="small" plain type="primary" @click="openMutation(row, 'SUBMIT')"><Send :size="15" />提交审核</el-button><el-button v-if="canReviewSource && row.reviewStatus === 'PENDING' && row.status === 'AVAILABLE'" size="small" plain type="success" @click="openReview(row)"><FileCheck2 :size="15" />审核</el-button><el-button v-if="canEditSource && row.reviewStatus === 'APPROVED' && row.status === 'AVAILABLE' && !row.statementGenerated" size="small" plain @click="openMutation(row, 'ADJUST')"><Pencil :size="15" />调整</el-button><el-button v-if="canEditSource && row.status === 'AVAILABLE' && !row.statementGenerated" size="small" plain type="danger" @click="openMutation(row, 'VOID')"><Ban :size="15" />作废</el-button></template><span v-else class="muted-action">手工成本</span></div></template>
+        <template #actions="{ row }"><div class="row-actions"><template v-if="row.feeSourceId"><el-button v-if="canViewSource" size="small" plain type="primary" @click="openDetail(row)"><Eye :size="15" />详情</el-button><el-button v-if="canEditSource && row.sourceSystem !== 'FIRSTLEG' && ['DRAFT','REJECTED'].includes(row.reviewStatus) && row.status === 'AVAILABLE'" size="small" plain @click="openMutation(row, 'EDIT')"><Pencil :size="15" />编辑</el-button><el-button v-if="canEditSource && ['DRAFT','REJECTED'].includes(row.reviewStatus) && row.status === 'AVAILABLE'" size="small" plain type="primary" @click="openMutation(row, 'SUBMIT')"><Send :size="15" />提交审核</el-button><el-button v-if="canReviewSource && row.reviewStatus === 'PENDING' && row.status === 'AVAILABLE'" size="small" plain type="success" @click="openReview(row)"><FileCheck2 :size="15" />审核</el-button><el-button v-if="canEditSource && row.sourceSystem !== 'FIRSTLEG' && row.reviewStatus === 'APPROVED' && row.status === 'AVAILABLE' && !row.statementGenerated" size="small" plain @click="openMutation(row, 'ADJUST')"><Pencil :size="15" />调整</el-button><el-button v-if="canEditSource && row.status === 'AVAILABLE' && !row.statementGenerated" size="small" plain type="danger" @click="openMutation(row, 'VOID')"><Ban :size="15" />作废</el-button></template><span v-else class="muted-action">手工成本</span></div></template>
         <template #customerName="{ row }">{{ customerName(row.customerId, row.customerName) }}</template><template #direction="{ row }"><el-tag :type="row.direction === 'RECEIVABLE' ? 'success' : row.direction === 'PAYABLE' ? 'warning' : 'info'">{{ financeDirectionLabel(row.direction) }}</el-tag></template>
         <template #businessReference="{ row }">{{ businessReference(row as unknown as ArapRow) }}</template><template #sourceType="{ row }">{{ sourceTypeDisplay(row.sourceType) }}</template><template #supplierName="{ row }">{{ supplierDisplay(row as unknown as ArapRow) }}</template><template #sourceStatus="{ row }">{{ sourceStatusDisplay(row.status) }}</template>
         <template #status="{ row }"><el-tag :type="row.reviewStatus === 'APPROVED' ? 'success' : row.reviewStatus === 'REJECTED' ? 'danger' : 'warning'">{{ statusLabel(row.reviewStatus) }}</el-tag></template>
@@ -334,7 +334,7 @@ watch(() => [route.name, String(route.params.feeSourceId || '')], ([name, feeSou
     <AdminPage v-else as="div" class="finance-arap-detail" spacing="normal">
       <section class="surface-panel finance-arap-detail__surface">
       <DetailPageLayout class="finance-arap-detail__layout" aria-label="费用来源详情">
-        <template #header><div class="detail-heading"><el-button @click="closeDetail"><ArrowLeft :size="16" />返回客户应收应付</el-button><div class="detail-title"><h2>费用来源详情</h2><p>{{ selected?.documentNo || '费用来源' }} · {{ selected ? customerName(selected.customerId, selected.customerName) : '客户名称暂不可用' }}</p></div><div class="detail-actions"><el-button v-if="canEditSource && detail && ['DRAFT','REJECTED'].includes(detail.reviewStatus)" @click="openMutation(selected as unknown as Record<string, unknown>, 'EDIT')"><Pencil :size="16" />编辑</el-button><el-button v-if="canEditSource && detail && ['DRAFT','REJECTED'].includes(detail.reviewStatus)" @click="openMutation(selected as unknown as Record<string, unknown>, 'SUBMIT')"><Send :size="16" />提交审核</el-button><el-button v-if="canReviewSource && detail?.reviewStatus === 'PENDING' && selected" @click="openReview(selected as unknown as Record<string, unknown>)"><FileCheck2 :size="16" />审核</el-button></div></div></template>
+        <template #header><div class="detail-heading"><el-button @click="closeDetail"><ArrowLeft :size="16" />返回客户应收应付</el-button><div class="detail-title"><h2>费用来源详情</h2><p>{{ selected?.documentNo || '费用来源' }} · {{ selected ? customerName(selected.customerId, selected.customerName) : '客户名称暂不可用' }}</p></div><div class="detail-actions"><el-button v-if="canEditSource && detail && detail.sourceSystem !== 'FIRSTLEG' && ['DRAFT','REJECTED'].includes(detail.reviewStatus)" @click="openMutation(selected as unknown as Record<string, unknown>, 'EDIT')"><Pencil :size="16" />编辑</el-button><el-button v-if="canEditSource && detail && ['DRAFT','REJECTED'].includes(detail.reviewStatus)" @click="openMutation(selected as unknown as Record<string, unknown>, 'SUBMIT')"><Send :size="16" />提交审核</el-button><el-button v-if="canReviewSource && detail?.reviewStatus === 'PENDING' && selected" @click="openReview(selected as unknown as Record<string, unknown>)"><FileCheck2 :size="16" />审核</el-button></div></div></template>
         <template v-if="detail" #summary><section class="arap-metrics" aria-label="费用来源概览"><div class="arap-metric is-amount"><span>费用金额</span><strong>{{ money(detail.amount) }}</strong><small>CNY</small></div><div class="arap-metric"><span>收付方向</span><strong>{{ financeDirectionLabel(detail.direction) }}</strong></div><div class="arap-metric"><span>来源状态</span><strong>{{ sourceStatusDisplay(detail.sourceStatus) }}</strong></div><div class="arap-metric"><span>审核状态</span><strong>{{ statusLabel(detail.reviewStatus) }}</strong></div></section></template>
         <LoadErrorState v-if="detailError" title="费用来源详情加载失败" :message="detailError.message" :loading="detailLoading" @retry="selected && loadDetail(selected)"><template #details><ApiErrorMeta :details="detailError" /></template></LoadErrorState>
         <template v-else-if="detail"><div class="arap-detail-grid"><FormSection class="arap-information" title="单据信息" :bordered="false"><el-descriptions :column="2" class="arap-detail"><el-descriptions-item label="客户">{{ customerName(detail.customerId, detail.customerName || selected?.customerName) }}</el-descriptions-item><el-descriptions-item label="费用项目">{{ displayFeeName(detail.feeItemName) }}</el-descriptions-item><el-descriptions-item label="来源类型">{{ sourceTypeDisplay(detail.sourceType) }}</el-descriptions-item><el-descriptions-item label="关联业务">{{ detail.inboundCode || detail.containerNo || detail.sourceBusinessId || '业务关联待补充' }}</el-descriptions-item><el-descriptions-item v-if="detail.direction === 'PAYABLE'" label="供应商">{{ detail.supplierName || '供应商待补充' }}</el-descriptions-item><el-descriptions-item label="业务日期">{{ formatBusinessDate(detail.businessDate) }}</el-descriptions-item></el-descriptions></FormSection><FormSection class="arap-settlement" title="审核与结算" :bordered="false"><el-descriptions :column="1" class="arap-detail"><el-descriptions-item label="费用状态">{{ sourceStatusDisplay(detail.sourceStatus) }}</el-descriptions-item><el-descriptions-item label="已生成对账单">{{ detail.statementGenerated ? '是' : '否' }}</el-descriptions-item><el-descriptions-item label="审核原因">{{ detail.reviewReason || '未填写' }}</el-descriptions-item></el-descriptions></FormSection></div><FormSection class="operation-log" title="操作记录" :bordered="false"><el-timeline v-if="detail.operationLogs?.length"><el-timeline-item v-for="(log, index) in detail.operationLogs" :key="`${log.occurredAt}-${index}`" :timestamp="formatDateTime(log.occurredAt)">{{ financeOperationActionLabel(log.action) }} · {{ displayOperator(log.operatorName) }}<small>{{ log.remark || financeOperationResultLabel(log.result) }}</small></el-timeline-item></el-timeline><el-empty v-else description="暂无操作记录" /></FormSection></template>