diff --git a/app/Http/Controllers/Settings/Navigation.php b/app/Http/Controllers/Settings/Navigation.php
index 2ded2fc8..c3d63f62 100644
--- a/app/Http/Controllers/Settings/Navigation.php
+++ b/app/Http/Controllers/Settings/Navigation.php
@@ -49,7 +49,7 @@ class Navigation extends Controller
                 $titles['sections'][$sectionSlug] = $sectionTitle;
             }
 
-            foreach ($section['pages'] ?? [] as $page) {
+            foreach (collect($section['pages'] ?? [])->flatMap(fn (array $page) => [$page, ...($page['children'] ?? [])]) as $page) {
                 $pageTitle = trim((string) ($pageTitles[$sectionSlug][$page['slug']] ?? ''));
 
                 if ($pageTitle !== '') {
diff --git a/app/Utilities/BusinessNavigation.php b/app/Utilities/BusinessNavigation.php
index 6aeb952a..6aca5455 100644
--- a/app/Utilities/BusinessNavigation.php
+++ b/app/Utilities/BusinessNavigation.php
@@ -23,6 +23,13 @@ class BusinessNavigation
                     $pageTitles[$sectionSlug][$page['slug']] ?? null,
                     $page['title']
                 );
+
+                foreach ($page['children'] ?? [] as $childIndex => $child) {
+                    $section['pages'][$pageIndex]['children'][$childIndex]['title'] = self::title(
+                        $pageTitles[$sectionSlug][$child['slug']] ?? null,
+                        $child['title']
+                    );
+                }
             }
         }
         unset($section);
diff --git a/config/business_navigation.php b/config/business_navigation.php
index 787e2384..3a0d7ef3 100644
--- a/config/business_navigation.php
+++ b/config/business_navigation.php
@@ -701,9 +701,23 @@ $navigation = [
         'title' => '快递应付',
         'icon' => 'local_shipping',
         'pages' => [
-            ['slug' => 'quote-management', 'title' => '报价管理'],
-            ['slug' => 'courier-information', 'title' => '快递资料'],
-            ['slug' => 'agreement-signing', 'title' => '协议签署'],
+            [
+                'slug' => 'courier-quote',
+                'title' => '快递报价',
+                'children' => [
+                    ['slug' => 'quote-management', 'title' => '报价管理'],
+                    ['slug' => 'courier-information', 'title' => '快递资料'],
+                    ['slug' => 'agreement-signing', 'title' => '协议签署'],
+                    [
+                        'slug' => 'courier-surcharge',
+                        'title' => '附加费报价维护',
+                        'tabs' => [
+                            ['slug' => 'quotes', 'title' => '附加费报价'],
+                            ['slug' => 'settlement', 'title' => '附加费结算'],
+                        ],
+                    ],
+                ],
+            ],
             ['slug' => 'freight-reconciliation', 'title' => '运费对账'],
             ['slug' => 'shipping-data', 'title' => '发货数据'],
             ['slug' => 'return-pickup-management', 'title' => '退货取件管理'],
@@ -712,14 +726,6 @@ $navigation = [
             ['slug' => 'compensation-details', 'title' => '赔偿明细'],
             ['slug' => 'advance-details', 'title' => '借支明细'],
             ['slug' => 'other-adjustments', 'title' => '其他扣款补款'],
-            [
-                'slug' => 'courier-surcharge',
-                'title' => '附加费报价维护',
-                'tabs' => [
-                    ['slug' => 'quotes', 'title' => '附加费报价'],
-                    ['slug' => 'settlement', 'title' => '附加费结算'],
-                ],
-            ],
             ['slug' => 'payable-cloud-warehouse-vehicle-fee', 'title' => '应付云仓车费'],
             ['slug' => 'courier-payables-report', 'title' => '快递应付表'],
             ['slug' => 'freight-difference', 'title' => '运费差'],
diff --git a/resources/views/business/pages/courier-payables/final-workspace.blade.php b/resources/views/business/pages/courier-payables/final-workspace.blade.php
index 0268f8dc..071beb8e 100644
--- a/resources/views/business/pages/courier-payables/final-workspace.blade.php
+++ b/resources/views/business/pages/courier-payables/final-workspace.blade.php
@@ -5,10 +5,26 @@
 <div data-courier-final>
     <nav class="business-tab-bar courier-final-tabs" aria-label="快递应付子功能">
         @foreach ($courierPages as $item)
-            <a class="business-tab-link" data-courier-tab="{{ $item['slug'] }}"
-                href="{{ route('business.pages.show', ['section' => 'courier-payables', 'page' => $item['slug']]) }}">{{ $item['title'] }}</a>
+            @if (!empty($item['children']))
+                <button type="button" class="business-tab-link" data-courier-group="{{ $item['slug'] }}"
+                    aria-expanded="false" aria-controls="courier-group-{{ $item['slug'] }}">{{ $item['title'] }}</button>
+            @else
+                <a class="business-tab-link" data-courier-tab="{{ $item['slug'] }}"
+                    href="{{ route('business.pages.show', ['section' => 'courier-payables', 'page' => $item['slug']]) }}">{{ $item['title'] }}</a>
+            @endif
         @endforeach
     </nav>
+    @foreach ($courierPages as $item)
+        @if (!empty($item['children']))
+            <nav class="business-tab-bar courier-final-tabs courier-final-subtabs" id="courier-group-{{ $item['slug'] }}"
+                aria-label="{{ $item['title'] }}子功能" data-courier-subtabs="{{ $item['slug'] }}" hidden>
+                @foreach ($item['children'] as $child)
+                    <a class="business-tab-link" data-courier-tab="{{ $child['slug'] }}" data-courier-parent="{{ $item['slug'] }}"
+                        href="{{ route('business.pages.show', ['section' => 'courier-payables', 'page' => $child['slug']]) }}">{{ $child['title'] }}</a>
+                @endforeach
+            </nav>
+        @endif
+    @endforeach
     <div role="status" aria-live="polite" data-courier-status></div>
     <button type="button" class="business-tab-link" data-courier-retry hidden>重新加载</button>
     @if (empty($courierPages))
@@ -19,7 +35,12 @@
 <style>
     .courier-final-tabs { flex-wrap:wrap; gap:4px 16px; min-height:34px; padding:0 16px; margin-bottom:12px; }
     .courier-final-tabs .business-tab-link { min-height:34px; font-size:12px; color:var(--vip-content-muted, #595959); }
+    .courier-final-tabs button.business-tab-link { border:0; background:transparent; padding:0; font-family:inherit; cursor:pointer; }
+    .courier-final-tabs .business-tab-link:focus-visible { outline:2px solid var(--vip-content-accent-dark, #856632); outline-offset:3px; }
+    .courier-final-subtabs[hidden] { display:none; }
+    .courier-final-subtabs { border:0; border-bottom:1px solid var(--vip-border, #D8D2C7); border-radius:0; box-shadow:none; }
     .courier-final-tabs .is-active { color:var(--vip-content-accent-dark, #856632); }
+    @media (max-width:640px) { .courier-final-tabs { flex-wrap:nowrap; } }
     [data-courier-frames] iframe { width:100%; height:calc(100vh - 260px); min-height:400px; border:0; }
     [data-courier-frames] iframe[hidden] { display:none; }
     [data-courier-retry][hidden] { display:none!important; }
@@ -30,6 +51,9 @@
     const root = document.querySelector('[data-courier-final]');
     if (!root) return;
     const links = [...root.querySelectorAll('[data-courier-tab]')];
+    const groups = [...root.querySelectorAll('[data-courier-group]')];
+    const submenus = [...root.querySelectorAll('[data-courier-subtabs]')];
+    const groupSelections = new Map();
     const frames = new Map();
     const status = root.querySelector('[data-courier-status]');
     const retry = root.querySelector('[data-courier-retry]');
@@ -38,6 +62,14 @@
         if (!link) return;
         selected = link;
         retry.hidden = true;
+        const parent = link.dataset.courierParent;
+        if (parent) groupSelections.set(parent, link);
+        groups.forEach(group => {
+            const active = group.dataset.courierGroup === parent;
+            group.classList.toggle('is-active', active);
+            group.setAttribute('aria-expanded', String(active));
+        });
+        submenus.forEach(menu => menu.hidden = menu.dataset.courierSubtabs !== parent);
         links.forEach(item => {
             item.classList.toggle('is-active', item === link);
             if (item === link) item.setAttribute('aria-current', 'page');
@@ -93,8 +125,16 @@
         if (event.button !== 0 || event.ctrlKey || event.metaKey || event.shiftKey || event.altKey) return;
         event.preventDefault(); select(link);
     }));
+    const groupTarget = group => group && (groupSelections.get(group.dataset.courierGroup)
+        || links.find(link => link.dataset.courierParent === group.dataset.courierGroup));
+    groups.forEach(group => group.addEventListener('click', () => select(groupTarget(group))));
     retry.addEventListener('click', () => select(selected, false, true));
-    const restore = () => select(links.find(link => link.dataset.courierTab === new URL(location.href).searchParams.get('view')) || links[0], false);
+    const restore = () => {
+        const view = new URL(location.href).searchParams.get('view');
+        select(links.find(link => link.dataset.courierTab === view)
+            || groupTarget(groups.find(group => group.dataset.courierGroup === view))
+            || groupTarget(groups[0]) || links[0], false);
+    };
     window.addEventListener('popstate', restore);
     restore();
 })();
diff --git a/resources/views/settings/navigation/edit.blade.php b/resources/views/settings/navigation/edit.blade.php
index 78f33acd..b90abdd5 100644
--- a/resources/views/settings/navigation/edit.blade.php
+++ b/resources/views/settings/navigation/edit.blade.php
@@ -27,10 +27,10 @@
 
                             @if (! empty($section['pages']))
                                 <div class="sm:col-span-3 grid grid-cols-1 gap-4">
-                                    @foreach ($section['pages'] as $page)
+                                    @foreach (collect($section['pages'])->flatMap(fn ($page) => [$page, ...($page['children'] ?? [])]) as $page)
                                         @php $pageInput = "page_titles[{$section['slug']}][{$page['slug']}]"; @endphp
                                         <div>
-                                            <x-form.label for="{{ $pageInput }}">二级功能</x-form.label>
+                                            <x-form.label for="{{ $pageInput }}">功能名称</x-form.label>
                                             <input
                                                 type="text"
                                                 id="{{ $pageInput }}"
diff --git a/tests/Feature/Business/QuoteManagementPageTest.php b/tests/Feature/Business/QuoteManagementPageTest.php
index 09c93fcf..3ff2b68b 100644
--- a/tests/Feature/Business/QuoteManagementPageTest.php
+++ b/tests/Feature/Business/QuoteManagementPageTest.php
@@ -5,6 +5,7 @@ namespace Tests\Feature\Business;
 use App\Models\Auth\Permission;
 use App\Support\QuoteManagementSnapshot;
 use App\Support\ReverseLogisticsQuoteSnapshot;
+use App\Utilities\BusinessNavigation;
 use Illuminate\Http\Exceptions\HttpResponseException;
 use Symfony\Component\HttpKernel\Exception\HttpException;
 use Tests\Feature\FeatureTestCase;
@@ -164,7 +165,13 @@ class QuoteManagementPageTest extends FeatureTestCase
             ->firstWhere('slug', 'courier-payables');
 
         $this->assertIsArray($courierPayables);
-        $this->assertContains('quote-management', array_column($courierPayables['pages'], 'slug'));
+        $quoteDirectory = collect($courierPayables['pages'])->firstWhere('slug', 'courier-quote');
+        $this->assertSame([
+            'quote-management',
+            'courier-information',
+            'agreement-signing',
+            'courier-surcharge',
+        ], array_column($quoteDirectory['children'], 'slug'));
         $this->assertNotContains('reverse-logistics-quotes', array_column($courierPayables['pages'], 'slug'));
 
         $this->user->attachPermission(
@@ -194,6 +201,52 @@ class QuoteManagementPageTest extends FeatureTestCase
             ->assertSee('data-reverse-rate-body', false);
     }
 
+    public function testCourierQuoteDirectoryKeepsPageLabelsAndExactPermissions(): void
+    {
+        setting()->set('navigation.titles', [
+            'pages' => ['courier-payables' => ['quote-management' => '快递报价单']],
+        ]);
+        setting()->save();
+
+        $subject = 'user_' . $this->user->id;
+        $this->user->roles()->sync([
+            \App\Models\Auth\Role::where('name', 'admin')->firstOrFail()->id,
+        ]);
+        setting()->set('system.sidebar_permissions', [
+            'configured' => [$subject],
+            'subjects' => [$subject => [
+                'courier-payables/quote-management',
+                'courier-payables/courier-surcharge',
+            ]],
+        ]);
+        setting()->save();
+
+        $navigation = BusinessNavigation::all();
+        $section = collect($navigation)->firstWhere('slug', 'courier-payables');
+        $directory = collect($section['pages'])->firstWhere('slug', 'courier-quote');
+        $this->assertSame('快递报价单', collect($directory['children'])->firstWhere('slug', 'quote-management')['title']);
+
+        $this->user->attachPermission(Permission::where('name', 'read-admin-panel')->firstOrFail());
+        $this->loginAs()
+            ->get(route('business.pages.show', ['section' => 'courier-payables']))
+            ->assertOk()
+            ->assertSee('data-courier-group="courier-quote"', false)
+            ->assertSeeText('快递报价单')
+            ->assertSee('data-courier-tab="courier-surcharge"', false)
+            ->assertDontSee('data-courier-tab="courier-information"', false)
+            ->assertDontSee('data-courier-tab="agreement-signing"', false);
+
+        try {
+            $this->get(route('business.pages.show', ['section' => 'courier-payables', 'page' => 'courier-information']));
+            $this->fail('未授权的快递资料页面不应访问。');
+        } catch (HttpException|HttpResponseException $exception) {
+            $status = method_exists($exception, 'getStatusCode')
+                ? $exception->getStatusCode()
+                : $exception->getResponse()->getStatusCode();
+            $this->assertSame(404, $status);
+        }
+    }
+
     public function testQuoteManagementPageKeepsTheShellWhenThePrivateSnapshotIsMissing(): void
     {
         app()->instance(
diff --git a/tests/Feature/Settings/NavigationTest.php b/tests/Feature/Settings/NavigationTest.php
index 8ea95a98..851c5832 100644
--- a/tests/Feature/Settings/NavigationTest.php
+++ b/tests/Feature/Settings/NavigationTest.php
@@ -245,7 +245,9 @@ class NavigationTest extends FeatureTestCase
         $this->loginAs()
             ->get(route('settings.navigation.manage'))
             ->assertOk()
-            ->assertSeeText('侧边栏功能名称');
+            ->assertSeeText('侧边栏功能名称')
+            ->assertSee('name="page_titles[courier-payables][quote-management]"', false)
+            ->assertSee('name="page_titles[courier-payables][courier-surcharge]"', false);
 
         $this->patch(route('settings.navigation.save'), [
             'section_titles' => [
@@ -255,6 +257,10 @@ class NavigationTest extends FeatureTestCase
                 'company-management' => [
                     'subject-operating-report' => '主体经营',
                 ],
+                'courier-payables' => [
+                    'quote-management' => '快递报价单',
+                    'unknown-page' => '不应保存',
+                ],
             ],
         ])->assertOk();
 
@@ -263,6 +269,10 @@ class NavigationTest extends FeatureTestCase
 
         $this->assertSame('企业档案', $navigation[0]['title']);
         $this->assertSame('主体经营', $companyRegistration['title']);
+        $courier = collect($navigation)->firstWhere('slug', 'courier-payables');
+        $quotes = collect($courier['pages'])->firstWhere('slug', 'courier-quote');
+        $this->assertSame('快递报价单', collect($quotes['children'])->firstWhere('slug', 'quote-management')['title']);
+        $this->assertArrayNotHasKey('unknown-page', setting('navigation.titles')['pages']['courier-payables']);
     }
 
     public function testOrderDataAndRefundAreConfiguredBetweenInvoiceAndReceivablesMenus()