diff --git a/app/Business/ServiceCompanyReconciliation/ServiceCompanyReconciliationRepository.php b/app/Business/ServiceCompanyReconciliation/ServiceCompanyReconciliationRepository.php
index 1f82df39..dad43ede 100644
--- a/app/Business/ServiceCompanyReconciliation/ServiceCompanyReconciliationRepository.php
+++ b/app/Business/ServiceCompanyReconciliation/ServiceCompanyReconciliationRepository.php
@@ -24,6 +24,10 @@ class ServiceCompanyReconciliationRepository
         'settlement_income' => '业绩明细收入（不减退款）',
     ];
 
+    public const FIXED_FEE_RATES_PERCENT = [
+        'customer_service' => 1.5,
+    ];
+
     private readonly ConnectionInterface $connection;
 
     public function __construct(DatabaseManager $database)
@@ -523,6 +527,17 @@ class ServiceCompanyReconciliationRepository
         if ($feeRatePercent < 0 || $feeRatePercent > 100) {
             throw ValidationException::withMessages(['fee_rate_percent' => '结算比例必须在 0% 到 100% 之间。']);
         }
+        $fixedFeeRatePercent = self::fixedFeeRatePercent((string) $company['service_type_code']);
+        if ($fixedFeeRatePercent !== null
+            && abs($feeRatePercent - $fixedFeeRatePercent) > 0.000001) {
+            throw ValidationException::withMessages([
+                'fee_rate_percent' => sprintf(
+                    '%s的结算比例固定为 %s%%。',
+                    self::SERVICE_TYPES[(string) $company['service_type_code']],
+                    rtrim(rtrim(number_format($fixedFeeRatePercent, 4, '.', ''), '0'), '.'),
+                ),
+            ]);
+        }
 
         $payload = [
             'service_company_key' => (string) $company['company_key'],
@@ -1039,6 +1054,11 @@ class ServiceCompanyReconciliationRepository
         return $text === '' ? null : mb_substr($text, 0, $length);
     }
 
+    public static function fixedFeeRatePercent(string $serviceTypeCode): ?float
+    {
+        return self::FIXED_FEE_RATES_PERCENT[$serviceTypeCode] ?? null;
+    }
+
     private function serviceTypeCodeFromLabel(string $label): string
     {
         if (mb_stripos($label, '客服') !== false) {
diff --git a/app/Http/Controllers/Business/ServiceCompanyReconciliation.php b/app/Http/Controllers/Business/ServiceCompanyReconciliation.php
index eed32d67..ad55f26f 100644
--- a/app/Http/Controllers/Business/ServiceCompanyReconciliation.php
+++ b/app/Http/Controllers/Business/ServiceCompanyReconciliation.php
@@ -41,6 +41,7 @@ class ServiceCompanyReconciliation extends Controller
             'storeCompanies' => [],
             'serviceTypes' => ServiceCompanyReconciliationRepository::SERVICE_TYPES,
             'baseMetrics' => ServiceCompanyReconciliationRepository::BASE_METRICS,
+            'fixedFeeRatePercent' => null,
             'companyDirectory' => $this->repository->companyDirectory(),
             'companyPlanSyncError' => $companyPlanSyncError,
             'canEdit' => FinanceLedgerAccess::canEditMapping(user()),
@@ -94,6 +95,9 @@ class ServiceCompanyReconciliation extends Controller
             'storeCompanies' => $this->repository->storeCompanies($tenantId),
             'serviceTypes' => ServiceCompanyReconciliationRepository::SERVICE_TYPES,
             'baseMetrics' => ServiceCompanyReconciliationRepository::BASE_METRICS,
+            'fixedFeeRatePercent' => ServiceCompanyReconciliationRepository::fixedFeeRatePercent(
+                (string) $company['service_type_code'],
+            ),
             'companyDirectory' => $this->repository->companyDirectory(),
             'companyPlanSyncError' => $companyPlanSyncError,
             'canEdit' => FinanceLedgerAccess::canEditMapping(user()),
diff --git a/resources/views/business/pages/financial-operations/service-company-reconciliation.blade.php b/resources/views/business/pages/financial-operations/service-company-reconciliation.blade.php
index c981f4d7..54a71442 100644
--- a/resources/views/business/pages/financial-operations/service-company-reconciliation.blade.php
+++ b/resources/views/business/pages/financial-operations/service-company-reconciliation.blade.php
@@ -995,7 +995,13 @@
                         <header class="svc-panel__head">
                             <div>
                                 <h3 id="svc-relations-title">店铺公司结算关系</h3>
-                                <p>一行只对应一家店铺公司；修改比例会生成新版本。</p>
+                                <p>
+                                    @if ($fixedFeeRatePercent !== null)
+                                        客服服务公司结算比例固定为 {{ $fixedFeeRatePercent }}%；其他信息修改会生成新版本。
+                                    @else
+                                        一行只对应一家店铺公司；修改比例会生成新版本。
+                                    @endif
+                                </p>
                             </div>
                             @if ($canEdit)
                                 <button class="svc-page__button" type="button" data-relation-create>
@@ -1314,7 +1320,12 @@
 
             @if ($isDetail)
                 <dialog class="svc-dialog" id="svc-relation-dialog" aria-labelledby="svc-relation-dialog-title">
-                    <form method="POST" action="{{ route('business.service-company-reconciliation.relations.store', ['serviceCompany' => $serviceCompany['id']]) }}" data-relation-form>
+                    <form
+                        method="POST"
+                        action="{{ route('business.service-company-reconciliation.relations.store', ['serviceCompany' => $serviceCompany['id']]) }}"
+                        data-relation-form
+                        @if ($fixedFeeRatePercent !== null) data-fixed-fee-rate="{{ $fixedFeeRatePercent }}" @endif
+                    >
                         @csrf
                         <input type="hidden" name="_method" value="POST" data-relation-method>
                         <header class="svc-dialog__head">
@@ -1346,7 +1357,21 @@
                             </div>
                             <div class="svc-field">
                                 <label for="svc-fee-rate">结算比例（%）</label>
-                                <input id="svc-fee-rate" type="number" name="fee_rate_percent" min="0" max="100" step="0.0001" value="1.5" required data-relation-rate>
+                                <input
+                                    id="svc-fee-rate"
+                                    type="number"
+                                    name="fee_rate_percent"
+                                    min="0"
+                                    max="100"
+                                    step="0.0001"
+                                    value="{{ $fixedFeeRatePercent ?? 1.5 }}"
+                                    required
+                                    data-relation-rate
+                                    @if ($fixedFeeRatePercent !== null) readonly @endif
+                                >
+                                @if ($fixedFeeRatePercent !== null)
+                                    <span class="svc-page__hint-text">客服服务公司固定 1.5%，由系统统一控制。</span>
+                                @endif
                             </div>
                             <div class="svc-field">
                                 <label for="svc-effective-from">生效日期</label>
@@ -1496,6 +1521,7 @@
 
                 const relationForm = relationDialog?.querySelector('[data-relation-form]');
                 const relationStore = relationDialog?.querySelector('[data-relation-store]');
+                const fixedFeeRate = relationForm?.dataset.fixedFeeRate || '';
 
                 function resetRelationForm() {
                     if (!relationForm) return;
@@ -1503,7 +1529,8 @@
                     relationForm.action = page.dataset.storeRoute;
                     relationForm.querySelector('[data-relation-method]').value = 'POST';
                     relationDialog.querySelector('[data-relation-dialog-title]').textContent = '新增店铺公司关系';
-                    relationForm.querySelector('[data-relation-rate]').value = '1.5';
+                    relationForm.querySelector('[data-relation-rate]').value = fixedFeeRate || '1.5';
+                    relationForm.querySelector('[data-relation-rate]').readOnly = fixedFeeRate !== '';
                     relationForm.querySelector('[data-relation-from]').value = @json($isDetail ? now()->startOfMonth()->toDateString() : '');
                 }
 
@@ -1521,7 +1548,7 @@
                         relationDialog.querySelector('[data-relation-dialog-title]').textContent = '编辑店铺公司关系';
                         relationForm.querySelector('[data-relation-store]').value = button.dataset.storeKey;
                         relationForm.querySelector('[data-relation-base]').value = button.dataset.baseMetric;
-                        relationForm.querySelector('[data-relation-rate]').value = button.dataset.feeRate;
+                        relationForm.querySelector('[data-relation-rate]').value = fixedFeeRate || button.dataset.feeRate;
                         relationForm.querySelector('[data-relation-from]').value = button.dataset.effectiveFrom;
                         relationForm.querySelector('[data-relation-to]').value = button.dataset.effectiveTo || '';
                         relationForm.querySelector('[data-relation-contract-no]').value = button.dataset.contractNo || '';
diff --git a/tests/Feature/Business/ServiceCompanyReconciliationTest.php b/tests/Feature/Business/ServiceCompanyReconciliationTest.php
index dcccc657..52de0c99 100644
--- a/tests/Feature/Business/ServiceCompanyReconciliationTest.php
+++ b/tests/Feature/Business/ServiceCompanyReconciliationTest.php
@@ -161,10 +161,11 @@ SQL);
         $relationId = (int) DB::connection('business_mirror')
             ->table('svc_service_relations')
             ->value('id');
-        $this->patch(route('business.service-company-reconciliation.relations.update', [
+        $updateRoute = route('business.service-company-reconciliation.relations.update', [
             'serviceCompany' => $serviceCompanyId,
             'relation' => $relationId,
-        ]), [
+        ]);
+        $relationPayload = [
             'store_company_key' => $storeCompanyKey,
             'base_metric' => 'settlement_income',
             'fee_rate_percent' => 2,
@@ -173,7 +174,21 @@ SQL);
             'contract_no' => 'HT-TEST-001',
             'contract_status' => 'stamped',
             'status' => 'active',
-        ])->assertSessionHasNoErrors();
+        ];
+        $this->withExceptionHandling()
+            ->patch($updateRoute, $relationPayload)
+            ->assertSessionHasErrors('fee_rate_percent');
+        $this->assertSame(
+            1,
+            (int) DB::connection('business_mirror')
+                ->table('svc_service_relations')
+                ->where('id', $relationId)
+                ->value('rule_version'),
+        );
+
+        $relationPayload['fee_rate_percent'] = 1.5;
+        $this->patch($updateRoute, $relationPayload)
+            ->assertSessionHasNoErrors();
 
         $this->assertSame(
             2,
@@ -198,10 +213,54 @@ SQL);
             ->assertSeeText('常州测试客服服务有限公司')
             ->assertSeeText('上海测试店铺公司有限公司')
             ->assertSeeText('HT-TEST-001')
-            ->assertSeeText('2.0000%')
+            ->assertSeeText('1.5000%')
+            ->assertSeeText('客服服务公司结算比例固定为 1.5%')
+            ->assertSee('data-fixed-fee-rate="1.5"', false)
             ->assertSeeText('同一店铺公司 + 同一服务类型');
     }
 
+    public function test_non_customer_service_company_keeps_configurable_settlement_rate(): void
+    {
+        $this->seedStoreMirror();
+        $this->loginAs();
+        $this->post(route('business.service-company-reconciliation.companies.store'), [
+            'company_name' => '常州测试运营服务有限公司',
+            'unified_social_credit_code' => '91320400TESTOPS02',
+            'service_type_code' => 'operations',
+            'company_status' => '正常',
+            'status' => 'active',
+        ])->assertSessionHasNoErrors();
+
+        $serviceCompanyId = (int) DB::connection('business_mirror')
+            ->table('svc_service_companies')
+            ->where('unified_social_credit_code', '91320400TESTOPS02')
+            ->value('id');
+        $storeCompanyKey = ServiceCompanyReconciliationRepository::companyKey(
+            '上海测试店铺公司有限公司',
+            '91310000TESTSTORE01',
+        );
+        $this->post(route('business.service-company-reconciliation.relations.store', [
+            'serviceCompany' => $serviceCompanyId,
+        ]), [
+            'store_company_key' => $storeCompanyKey,
+            'base_metric' => 'settlement_income',
+            'fee_rate_percent' => 2,
+            'effective_from' => '2025-01-01',
+            'effective_to' => '',
+            'contract_no' => 'HT-TEST-OPERATIONS',
+            'contract_status' => 'stamped',
+            'status' => 'active',
+        ])->assertSessionHasNoErrors();
+
+        $this->assertSame(
+            0.02,
+            (float) DB::connection('business_mirror')
+                ->table('svc_service_relations')
+                ->where('service_company_id', $serviceCompanyId)
+                ->value('fee_rate'),
+        );
+    }
+
     public function test_same_store_company_and_service_type_cannot_have_overlapping_service_companies(): void
     {
         $this->seedStoreMirror();