diff --git a/src/components/settings/AccountInfoManagement/index.tsx b/src/components/settings/AccountInfoManagement/index.tsx
index c762ef66..e1c436c8 100644
--- a/src/components/settings/AccountInfoManagement/index.tsx
+++ b/src/components/settings/AccountInfoManagement/index.tsx
@@ -353,7 +353,7 @@ export function AccountInfoClient({
 
                 <div className="space-y-3 pl-4">
                   {/* 이메일 수신 동의 */}
-                  <div className="flex items-center justify-between">
+                  <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-1">
                     <div className="flex items-center gap-2">
                       <Checkbox
                         id="email-consent"
@@ -371,7 +371,7 @@ export function AccountInfoClient({
                   </div>
 
                   {/* SMS 수신 동의 */}
-                  <div className="flex items-center justify-between">
+                  <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-1">
                     <div className="flex items-center gap-2">
                       <Checkbox
                         id="sms-consent"
diff --git a/src/components/settings/AccountManagement/AccountDetail.tsx b/src/components/settings/AccountManagement/AccountDetail.tsx
index 78757d54..30451cd6 100644
--- a/src/components/settings/AccountManagement/AccountDetail.tsx
+++ b/src/components/settings/AccountManagement/AccountDetail.tsx
@@ -21,6 +21,7 @@ import { useDeleteDialog } from '@/hooks/useDeleteDialog';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
 import { toast } from 'sonner';
+import { useMenuStore } from '@/stores/menuStore';
 import type { Account, AccountFormData, AccountStatus } from './types';
 import {
   BANK_OPTIONS,
@@ -39,6 +40,7 @@ interface AccountDetailProps {
 export function AccountDetail({ account, mode: initialMode }: AccountDetailProps) {
   const router = useRouter();
   const searchParams = useSearchParams();
+  const sidebarCollapsed = useMenuStore((state) => state.sidebarCollapsed);
   const [mode, setMode] = useState(initialMode);
   const deleteDialog = useDeleteDialog({
     onDelete: async (id) => deleteBankAccount(Number(id)),
@@ -185,22 +187,28 @@ export function AccountDetail({ account, mode: initialMode }: AccountDetailProps
             </CardContent>
           </Card>
 
-          {/* 버튼 영역 */}
-          <div className="flex items-center justify-between">
-            <Button variant="outline" onClick={handleBack}>
-              <ArrowLeft className="w-4 h-4 mr-2" />
-              목록으로
+        </div>
+
+        {/* 하단 액션 버튼 (sticky) */}
+        <div className={`fixed bottom-4 left-4 right-4 px-4 py-3 bg-background/95 backdrop-blur rounded-xl border shadow-lg z-50 transition-all duration-300 md:bottom-6 md:px-6 md:right-[48px] ${sidebarCollapsed ? 'md:left-[156px]' : 'md:left-[316px]'} flex items-center justify-between`}>
+          <Button variant="outline" onClick={handleBack} size="sm" className="md:size-default">
+            <ArrowLeft className="h-4 w-4 md:mr-2" />
+            <span className="hidden md:inline">목록으로</span>
+          </Button>
+          <div className="flex items-center gap-1 md:gap-2">
+            <Button
+              variant="outline"
+              onClick={() => account?.id && deleteDialog.single.open(String(account.id))}
+              size="sm"
+              className="text-destructive hover:bg-destructive hover:text-destructive-foreground md:size-default"
+            >
+              <Trash2 className="h-4 w-4 md:mr-2" />
+              <span className="hidden md:inline">삭제</span>
+            </Button>
+            <Button onClick={handleEdit} size="sm" className="md:size-default">
+              <Edit className="h-4 w-4 md:mr-2" />
+              <span className="hidden md:inline">수정</span>
             </Button>
-            <div className="flex items-center gap-2">
-              <Button variant="outline" onClick={() => account?.id && deleteDialog.single.open(String(account.id))} className="text-destructive hover:bg-destructive hover:text-destructive-foreground">
-                <Trash2 className="w-4 h-4 mr-2" />
-                삭제
-              </Button>
-              <Button onClick={handleEdit}>
-                <Edit className="w-4 h-4 mr-2" />
-                수정
-              </Button>
-            </div>
           </div>
         </div>
 
@@ -330,17 +338,18 @@ export function AccountDetail({ account, mode: initialMode }: AccountDetailProps
           </CardContent>
         </Card>
 
-        {/* 버튼 영역 */}
-        <div className="flex items-center justify-between">
-          <Button variant="outline" onClick={handleCancel}>
-            <X className="w-4 h-4 mr-2" />
-            취소
-          </Button>
-          <Button onClick={handleSubmit}>
-            <Save className="w-4 h-4 mr-2" />
-            {isCreateMode ? '등록' : '저장'}
-          </Button>
-        </div>
+      </div>
+
+      {/* 하단 액션 버튼 (sticky) */}
+      <div className={`fixed bottom-4 left-4 right-4 px-4 py-3 bg-background/95 backdrop-blur rounded-xl border shadow-lg z-50 transition-all duration-300 md:bottom-6 md:px-6 md:right-[48px] ${sidebarCollapsed ? 'md:left-[156px]' : 'md:left-[316px]'} flex items-center justify-between`}>
+        <Button variant="outline" onClick={handleCancel} size="sm" className="md:size-default">
+          <X className="h-4 w-4 md:mr-2" />
+          <span className="hidden md:inline">취소</span>
+        </Button>
+        <Button onClick={handleSubmit} size="sm" className="md:size-default">
+          <Save className="h-4 w-4 md:mr-2" />
+          <span className="hidden md:inline">{isCreateMode ? '등록' : '저장'}</span>
+        </Button>
       </div>
     </PageLayout>
   );
diff --git a/src/components/settings/AccountManagement/AccountDetailForm.tsx b/src/components/settings/AccountManagement/AccountDetailForm.tsx
index e00f644e..a6d419fb 100644
--- a/src/components/settings/AccountManagement/AccountDetailForm.tsx
+++ b/src/components/settings/AccountManagement/AccountDetailForm.tsx
@@ -12,7 +12,7 @@
 
 import { useState, useCallback, useMemo } from 'react';
 import { useRouter } from 'next/navigation';
-import { Landmark, Save, Trash2, ArrowLeft } from 'lucide-react';
+import { Landmark, Save, Trash2, ArrowLeft, Edit } from 'lucide-react';
 import { toast } from 'sonner';
 import { Button } from '@/components/ui/button';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
@@ -20,6 +20,7 @@ import { DeleteConfirmDialog } from '@/components/ui/confirm-dialog';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
 import { FormField } from '@/components/molecules/FormField';
+import { useMenuStore } from '@/stores/menuStore';
 import type { Account, AccountCategory, AccountFormData } from './types';
 import {
   ACCOUNT_CATEGORY_OPTIONS,
@@ -98,6 +99,7 @@ export function AccountDetailForm({
   isLoading,
 }: AccountDetailFormProps) {
   const router = useRouter();
+  const sidebarCollapsed = useMenuStore((state) => state.sidebarCollapsed);
   const [mode, setMode] = useState(initialMode);
   const [formData, setFormData] = useState<AccountFormData>(() => getInitialFormData(initialData));
   const [isSaving, setIsSaving] = useState(false);
@@ -216,7 +218,7 @@ export function AccountDetailForm({
         icon={Landmark}
       />
 
-      <div className="space-y-6">
+      <div className="space-y-6 pb-20">
         {/* ===== 기본 정보 ===== */}
         <Card>
           <CardHeader>
@@ -321,26 +323,30 @@ export function AccountDetailForm({
           <InsuranceAccountSection formData={formData} onChange={handleChange} disabled={disabled} />
         )}
 
-        {/* ===== 하단 버튼 ===== */}
-        <div className="flex items-center justify-between">
-          <Button variant="outline" onClick={handleBack}>
-            <ArrowLeft className="w-4 h-4 mr-2" />
-            목록으로
+        {/* ===== 하단 버튼 (sticky) ===== */}
+        <div className={`fixed bottom-4 left-4 right-4 px-4 py-3 bg-background/95 backdrop-blur rounded-xl border shadow-lg z-50 transition-all duration-300 md:bottom-6 md:px-6 md:right-[48px] ${sidebarCollapsed ? 'md:left-[156px]' : 'md:left-[316px]'} flex items-center justify-between`}>
+          <Button variant="outline" onClick={handleBack} size="sm" className="md:size-default">
+            <ArrowLeft className="h-4 w-4 md:mr-2" />
+            <span className="hidden md:inline">목록으로</span>
           </Button>
-          <div className="flex items-center gap-2">
+          <div className="flex items-center gap-1 md:gap-2">
             {isViewMode ? (
               <>
                 {onDelete && (
                   <Button
                     variant="outline"
                     onClick={() => setShowDeleteDialog(true)}
-                    className="text-destructive hover:bg-destructive hover:text-destructive-foreground"
+                    size="sm"
+                    className="text-destructive hover:bg-destructive hover:text-destructive-foreground md:size-default"
                   >
-                    <Trash2 className="w-4 h-4 mr-2" />
-                    삭제
+                    <Trash2 className="h-4 w-4 md:mr-2" />
+                    <span className="hidden md:inline">삭제</span>
                   </Button>
                 )}
-                <Button onClick={handleEdit}>수정</Button>
+                <Button onClick={handleEdit} size="sm" className="md:size-default">
+                  <Edit className="h-4 w-4 md:mr-2" />
+                  <span className="hidden md:inline">수정</span>
+                </Button>
               </>
             ) : (
               <>
@@ -348,15 +354,16 @@ export function AccountDetailForm({
                   <Button
                     variant="outline"
                     onClick={() => setShowDeleteDialog(true)}
-                    className="text-destructive hover:bg-destructive hover:text-destructive-foreground"
+                    size="sm"
+                    className="text-destructive hover:bg-destructive hover:text-destructive-foreground md:size-default"
                   >
-                    <Trash2 className="w-4 h-4 mr-2" />
-                    삭제
+                    <Trash2 className="h-4 w-4 md:mr-2" />
+                    <span className="hidden md:inline">삭제</span>
                   </Button>
                 )}
-                <Button onClick={handleSubmit} disabled={isSaving}>
-                  <Save className="w-4 h-4 mr-2" />
-                  {isCreateMode ? '등록' : '저장'}
+                <Button onClick={handleSubmit} disabled={isSaving} size="sm" className="md:size-default">
+                  <Save className="h-4 w-4 md:mr-2" />
+                  <span className="hidden md:inline">{isCreateMode ? '등록' : '저장'}</span>
                 </Button>
               </>
             )}
diff --git a/src/components/settings/AccountManagement/index.tsx b/src/components/settings/AccountManagement/index.tsx
index f3827391..b8f7a1b3 100644
--- a/src/components/settings/AccountManagement/index.tsx
+++ b/src/components/settings/AccountManagement/index.tsx
@@ -344,6 +344,7 @@ export function AccountManagement() {
                 {ACCOUNT_STATUS_LABELS[item.status]}
               </Badge>
             }
+            showCheckbox={false}
             isSelected={false}
             onToggleSelection={() => {}}
             onClick={() => handleRowClick(item)}
diff --git a/src/components/settings/AttendanceSettingsManagement/index.tsx b/src/components/settings/AttendanceSettingsManagement/index.tsx
index 1c069d98..fc02cf19 100644
--- a/src/components/settings/AttendanceSettingsManagement/index.tsx
+++ b/src/components/settings/AttendanceSettingsManagement/index.tsx
@@ -181,12 +181,10 @@ export function AttendanceSettingsManagement() {
           <CardHeader>
             <CardTitle className="text-lg">GPS 출퇴근</CardTitle>
           </CardHeader>
-          <CardContent className="space-y-4">
+          <CardContent className="space-y-6">
             {/* GPS 출퇴근 사용 + 연동 부서 */}
-            <div className="flex items-center gap-6">
-              <div className="flex items-center gap-2 min-w-[200px]">
-                <span className="text-sm font-medium text-muted-foreground">GPS 출퇴근</span>
-              </div>
+            <div className="grid grid-cols-1 md:grid-cols-[200px_1fr_1fr] gap-4 items-start">
+              <span className="text-sm font-medium text-muted-foreground pt-0.5">GPS 출퇴근</span>
               <label className="flex items-center gap-2 cursor-pointer">
                 <Checkbox
                   checked={settings.gpsEnabled}
@@ -194,7 +192,7 @@ export function AttendanceSettingsManagement() {
                 />
                 <span className="text-sm">GPS 출퇴근을 사용합니다</span>
               </label>
-              <div className="flex items-center gap-2">
+              <div className="space-y-1">
                 <span className="text-sm font-medium text-muted-foreground">연동 부서</span>
                 <MultiSelectCombobox
                   options={departmentOptions}
@@ -204,22 +202,20 @@ export function AttendanceSettingsManagement() {
                   searchPlaceholder="부서 검색..."
                   emptyText="검색 결과가 없습니다."
                   disabled={!settings.gpsEnabled}
-                  className="w-[200px]"
+                  className="w-full"
                 />
               </div>
             </div>
 
             {/* 출퇴근 허용 반경 */}
-            <div className="flex items-center gap-6">
-              <div className="flex items-center gap-2 min-w-[200px]">
-                <span className="text-sm font-medium text-muted-foreground">출퇴근 허용 반경</span>
-              </div>
+            <div className="grid grid-cols-1 md:grid-cols-[200px_1fr] gap-4 items-start">
+              <span className="text-sm font-medium text-muted-foreground pt-0.5">출퇴근 허용 반경</span>
               <Select
                 value={String(settings.allowedRadius)}
                 onValueChange={handleRadiusChange}
                 disabled={!settings.gpsEnabled}
               >
-                <SelectTrigger className="min-w-[120px] w-auto">
+                <SelectTrigger className="w-full md:w-[200px]">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>
@@ -240,10 +236,8 @@ export function AttendanceSettingsManagement() {
             <CardTitle className="text-lg">자동 출퇴근</CardTitle>
           </CardHeader>
           <CardContent>
-            <div className="flex items-center gap-6">
-              <div className="flex items-center gap-2 min-w-[200px]">
-                <span className="text-sm font-medium text-muted-foreground">자동 출퇴근</span>
-              </div>
+            <div className="grid grid-cols-1 md:grid-cols-[200px_1fr_1fr] gap-4 items-start">
+              <span className="text-sm font-medium text-muted-foreground pt-0.5">자동 출퇴근</span>
               <label className="flex items-center gap-2 cursor-pointer">
                 <Checkbox
                   checked={settings.autoEnabled}
@@ -251,7 +245,7 @@ export function AttendanceSettingsManagement() {
                 />
                 <span className="text-sm">자동 출퇴근을 사용합니다</span>
               </label>
-              <div className="flex items-center gap-2">
+              <div className="space-y-1">
                 <span className="text-sm font-medium text-muted-foreground">연동 부서</span>
                 <MultiSelectCombobox
                   options={departmentOptions}
@@ -261,7 +255,7 @@ export function AttendanceSettingsManagement() {
                   searchPlaceholder="부서 검색..."
                   emptyText="검색 결과가 없습니다."
                   disabled={!settings.autoEnabled}
-                  className="w-[200px]"
+                  className="w-full"
                 />
               </div>
             </div>
diff --git a/src/components/settings/BarobillIntegration/SignupModal.tsx b/src/components/settings/BarobillIntegration/SignupModal.tsx
index ac18be55..e66c606c 100644
--- a/src/components/settings/BarobillIntegration/SignupModal.tsx
+++ b/src/components/settings/BarobillIntegration/SignupModal.tsx
@@ -96,7 +96,7 @@ export function SignupModal({ open, onOpenChange, onSuccess }: SignupModalProps)
 
         <div className="space-y-4 py-2">
           {/* 사업자등록번호 + 상호명 */}
-          <div className="grid grid-cols-2 gap-4">
+          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
             <FormField
               type="businessNumber"
               label="사업자등록번호"
@@ -115,7 +115,7 @@ export function SignupModal({ open, onOpenChange, onSuccess }: SignupModalProps)
           </div>
 
           {/* 대표자명 + 업태 + 업종 */}
-          <div className="grid grid-cols-3 gap-4">
+          <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
             <FormField
               label="대표자명"
               required
@@ -146,7 +146,7 @@ export function SignupModal({ open, onOpenChange, onSuccess }: SignupModalProps)
           />
 
           {/* 바로빌 아이디 + 비밀번호 */}
-          <div className="grid grid-cols-2 gap-4">
+          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
             <FormField
               label="바로빌 아이디"
               required
@@ -164,7 +164,7 @@ export function SignupModal({ open, onOpenChange, onSuccess }: SignupModalProps)
           </div>
 
           {/* 담당자명 + 담당자 연락처 */}
-          <div className="grid grid-cols-2 gap-4">
+          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
             <FormField
               label="담당자명"
               value={formData.managerName}
diff --git a/src/components/settings/BarobillIntegration/index.tsx b/src/components/settings/BarobillIntegration/index.tsx
index 0ae73e0b..0d3e32f3 100644
--- a/src/components/settings/BarobillIntegration/index.tsx
+++ b/src/components/settings/BarobillIntegration/index.tsx
@@ -3,7 +3,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
-import { Link2, Loader2, Pencil, Check } from 'lucide-react';
+import { Link2, Loader2, Edit, Check } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import { Card, CardContent } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
@@ -103,7 +103,7 @@ export function BarobillIntegration() {
                       className="w-full"
                       onClick={() => setLoginOpen(true)}
                     >
-                      <Pencil className="h-4 w-4 mr-2" />
+                      <Edit className="h-4 w-4 mr-2" />
                       로그인 정보 수정
                     </Button>
                   </>
diff --git a/src/components/settings/LeavePolicyManagement/index.tsx b/src/components/settings/LeavePolicyManagement/index.tsx
index d8017aff..5b6b34da 100644
--- a/src/components/settings/LeavePolicyManagement/index.tsx
+++ b/src/components/settings/LeavePolicyManagement/index.tsx
@@ -120,7 +120,7 @@ export function LeavePolicyManagement() {
           <CardContent className="p-6">
             <h3 className="text-lg font-semibold mb-6">기준 설정</h3>
 
-            <div className="grid grid-cols-2 gap-6">
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
               {/* 기준 셀렉트 */}
               <div className="space-y-2">
                 <Label>기준</Label>
@@ -194,7 +194,7 @@ export function LeavePolicyManagement() {
           <CardContent className="p-6">
             <h3 className="text-lg font-semibold mb-6">연차 설정</h3>
 
-            <div className="grid grid-cols-3 gap-6">
+            <div className="grid grid-cols-1 sm:grid-cols-3 gap-6">
               {/* 기본 연차 일수 */}
               <div className="space-y-2">
                 <Label>기본 연차 일수</Label>
@@ -269,7 +269,7 @@ export function LeavePolicyManagement() {
               </div>
 
               {settings.carryOverEnabled && (
-                <div className="grid grid-cols-2 gap-6 pt-4 border-t">
+                <div className="grid grid-cols-1 md:grid-cols-2 gap-6 pt-4 border-t">
                   {/* 최대 이월 일수 */}
                   <div className="space-y-2">
                     <Label>최대 이월 일수</Label>
diff --git a/src/components/settings/NotificationSettings/ItemSettingsDialog.tsx b/src/components/settings/NotificationSettings/ItemSettingsDialog.tsx
index 56a46575..398f68e7 100644
--- a/src/components/settings/NotificationSettings/ItemSettingsDialog.tsx
+++ b/src/components/settings/NotificationSettings/ItemSettingsDialog.tsx
@@ -133,7 +133,7 @@ export function ItemSettingsDialog({ isOpen, onClose, settings, onSave }: ItemSe
 
   return (
     <Dialog open={isOpen} onOpenChange={handleOpenChange}>
-      <DialogContent className="!w-[400px] !max-w-[400px] max-h-[80vh] overflow-y-auto p-0 bg-white border-gray-200">
+      <DialogContent className="w-[calc(100vw-2rem)] sm:!w-[400px] sm:!max-w-[400px] max-h-[80vh] overflow-y-auto p-0 bg-white border-gray-200">
         {/* 헤더 */}
         <DialogHeader className="sticky top-0 bg-white z-10 px-4 py-3 border-b border-gray-200">
           <div className="flex items-center justify-between">
diff --git a/src/components/settings/NotificationSettings/index.tsx b/src/components/settings/NotificationSettings/index.tsx
index 74a0c7c8..4aaa7739 100644
--- a/src/components/settings/NotificationSettings/index.tsx
+++ b/src/components/settings/NotificationSettings/index.tsx
@@ -68,41 +68,43 @@ function NotificationItemRow({ label, item, onChange, disabled }: NotificationIt
         </div>
 
         {/* 알림 소리 선택 */}
-        <div className="flex items-center gap-2 pl-2">
-          <span className="text-sm text-muted-foreground min-w-[80px]">알림 소리 선택</span>
-          <Select
-            value={item.soundType}
-            onValueChange={(value: SoundType) =>
-              onChange({ ...item, soundType: value })
-            }
-            disabled={isDisabled}
-          >
-            <SelectTrigger className="min-w-[140px] w-auto h-8">
-              <SelectValue />
-            </SelectTrigger>
-            <SelectContent>
-              {SOUND_OPTIONS.map((option) => (
-                <SelectItem key={option.value} value={option.value}>
-                  {option.label}
-                </SelectItem>
-              ))}
-            </SelectContent>
-          </Select>
-          <Button
-            type="button"
-            variant="outline"
-            size="icon"
-            className="h-8 w-8"
-            onClick={() => playPreviewSound(item.soundType)}
-            disabled={isDisabled}
-          >
-            <Play className="h-3 w-3" />
-          </Button>
+        <div className="space-y-1 pl-2">
+          <span className="text-xs text-muted-foreground">알림 소리 선택</span>
+          <div className="flex items-center gap-2">
+            <Select
+              value={item.soundType}
+              onValueChange={(value: SoundType) =>
+                onChange({ ...item, soundType: value })
+              }
+              disabled={isDisabled}
+            >
+              <SelectTrigger className="flex-1 sm:w-[140px] sm:flex-none h-8">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                {SOUND_OPTIONS.map((option) => (
+                  <SelectItem key={option.value} value={option.value}>
+                    {option.label}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            <Button
+              type="button"
+              variant="outline"
+              size="icon"
+              className="h-8 w-8 shrink-0"
+              onClick={() => playPreviewSound(item.soundType)}
+              disabled={isDisabled}
+            >
+              <Play className="h-3 w-3" />
+            </Button>
+          </div>
         </div>
 
         {/* 추가 알림 선택 */}
-        <div className="flex items-center gap-2 pl-2">
-          <span className="text-sm text-muted-foreground min-w-[80px]">추가 알림 선택</span>
+        <div className="space-y-1 pl-2">
+          <span className="text-xs text-muted-foreground">추가 알림 선택</span>
           <label className="flex items-center gap-2 cursor-pointer">
             <Checkbox
               checked={item.email}
@@ -131,7 +133,7 @@ function NotificationSection({ title, enabled, onEnabledChange, children }: Noti
 
   return (
     <Card>
-      <div className="flex items-center justify-between px-6 pt-6 pb-3">
+      <div className="flex items-center justify-between px-4 sm:px-6 pt-4 sm:pt-6 pb-3">
         <CardTitle className="text-base font-medium">{title}</CardTitle>
         <Switch
           checked={enabled}
@@ -140,8 +142,8 @@ function NotificationSection({ title, enabled, onEnabledChange, children }: Noti
           }}
         />
       </div>
-      <CardContent className="pt-0">
-        <div className="pl-4">
+      <CardContent className="pt-0 px-4 sm:px-6">
+        <div className="pl-0 sm:pl-4">
           {children}
         </div>
       </CardContent>
diff --git a/src/components/settings/PaymentHistoryManagement/PaymentHistoryClient.tsx b/src/components/settings/PaymentHistoryManagement/PaymentHistoryClient.tsx
index b86c14af..2f7bca30 100644
--- a/src/components/settings/PaymentHistoryManagement/PaymentHistoryClient.tsx
+++ b/src/components/settings/PaymentHistoryManagement/PaymentHistoryClient.tsx
@@ -184,6 +184,7 @@ export function PaymentHistoryClient({
             key={item.id}
             id={item.id}
             title={`${item.subscriptionName} - ${item.paymentDate}`}
+            showCheckbox={false}
             isSelected={false}
             onToggleSelection={() => {}}
             infoGrid={
diff --git a/src/components/settings/PaymentHistoryManagement/index.tsx b/src/components/settings/PaymentHistoryManagement/index.tsx
index 69ba6b58..8d92de4d 100644
--- a/src/components/settings/PaymentHistoryManagement/index.tsx
+++ b/src/components/settings/PaymentHistoryManagement/index.tsx
@@ -153,6 +153,7 @@ export function PaymentHistoryManagement({
       <ListMobileCard
         id={item.id}
         title={`${item.subscriptionName} - ${item.paymentDate}`}
+        showCheckbox={false}
         isSelected={false}
         onToggleSelection={() => {}}
         infoGrid={
diff --git a/src/components/settings/PermissionManagement/PermissionDetailClient.tsx b/src/components/settings/PermissionManagement/PermissionDetailClient.tsx
index c6d422ef..b1a5cf6f 100644
--- a/src/components/settings/PermissionManagement/PermissionDetailClient.tsx
+++ b/src/components/settings/PermissionManagement/PermissionDetailClient.tsx
@@ -533,9 +533,9 @@ export function PermissionDetailClient({ permissionId, isNew = false, mode = 'vi
       {!isNew && (
         <Card>
           <CardContent className="p-6">
-            <div className="flex items-center justify-between mb-4">
+            <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-3 mb-4">
               <h3 className="text-lg font-semibold">메뉴별 권한</h3>
-              <div className="flex gap-2">
+              <div className="flex flex-wrap gap-2">
                 <Button
                   variant="outline"
                   size="sm"
diff --git a/src/components/settings/PermissionManagement/index.tsx b/src/components/settings/PermissionManagement/index.tsx
index 7cf74ff5..e7d2a26a 100644
--- a/src/components/settings/PermissionManagement/index.tsx
+++ b/src/components/settings/PermissionManagement/index.tsx
@@ -7,6 +7,7 @@ import {
   Shield,
   Plus,
   Pencil,
+  Edit,
   Trash2,
   Settings,
   Eye,
@@ -349,30 +350,21 @@ export function PermissionManagement() {
         isSelected={isSelected}
         onToggleSelection={onToggle}
         infoGrid={
-          <div className="grid grid-cols-2 gap-3">
+          <div className="grid grid-cols-1 gap-3">
             <InfoField label="설명" value={item.description || '-'} />
             <InfoField label="등록일" value={formatDate(item.created_at)} />
           </div>
         }
         actions={
-          <div className="flex gap-2">
-            <Button
-              variant="outline"
-              size="sm"
-              className="flex-1"
-              onClick={() => handleViewDetail(item)}
-            >
-              <Settings className="h-4 w-4 mr-2" />
-              권한 설정
-            </Button>
-            <Button
-              variant="outline"
-              size="sm"
-              onClick={() => handleEdit(item)}
-            >
-              <Pencil className="h-4 w-4" />
-            </Button>
-          </div>
+          <Button
+            variant="outline"
+            size="sm"
+            className="w-full"
+            onClick={() => handleViewDetail(item)}
+          >
+            <Settings className="h-4 w-4 mr-2" />
+            권한 설정
+          </Button>
         }
       />
     );
diff --git a/src/components/settings/RankManagement/index.tsx b/src/components/settings/RankManagement/index.tsx
index cc00b7ad..ea7dd277 100644
--- a/src/components/settings/RankManagement/index.tsx
+++ b/src/components/settings/RankManagement/index.tsx
@@ -3,7 +3,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
-import { Award, Plus, GripVertical, Pencil, Trash2, Loader2 } from 'lucide-react';
+import { Award, Plus, GripVertical, Edit, Trash2, Loader2 } from 'lucide-react';
 import { ReorderButtons } from '@/components/molecules';
 import { ContentSkeleton } from '@/components/ui/skeleton';
 import { Button } from '@/components/ui/button';
@@ -270,33 +270,59 @@ export function RankManagement() {
                     onDragStart={(e) => handleDragStart(e, index)}
                     onDragEnd={handleDragEnd}
                     onDragOver={(e) => handleDragOver(e, index)}
-                    className={`flex items-center gap-3 px-4 py-3 hover:bg-muted/50 transition-colors cursor-move ${
+                    className={`px-4 py-3 hover:bg-muted/50 transition-colors cursor-move ${
                       draggedItem === index ? 'opacity-50 bg-muted' : ''
                     }`}
                   >
-                    {/* 드래그 핸들 (PC만) */}
-                    <GripVertical className="h-5 w-5 text-muted-foreground flex-shrink-0 hidden md:block" />
+                    <div className="flex items-center gap-3">
+                      {/* 드래그 핸들 (PC만) */}
+                      <GripVertical className="h-5 w-5 text-muted-foreground flex-shrink-0 hidden md:block" />
 
-                    {/* 순서 변경 버튼 */}
-                    <ReorderButtons
-                      onMoveUp={() => handleMoveItem(index, index - 1)}
-                      onMoveDown={() => handleMoveItem(index, index + 1)}
-                      isFirst={index === 0}
-                      isLast={index === ranks.length - 1}
-                      disabled={isSubmitting}
-                      size="xs"
-                    />
+                      {/* 순서 변경 버튼 */}
+                      <ReorderButtons
+                        onMoveUp={() => handleMoveItem(index, index - 1)}
+                        onMoveDown={() => handleMoveItem(index, index + 1)}
+                        isFirst={index === 0}
+                        isLast={index === ranks.length - 1}
+                        disabled={isSubmitting}
+                        size="xs"
+                      />
 
-                    {/* 순서 번호 */}
-                    <span className="text-sm text-muted-foreground w-8">
-                      {index + 1}
-                    </span>
+                      {/* 순서 번호 */}
+                      <span className="text-sm text-muted-foreground w-8">
+                        {index + 1}
+                      </span>
 
-                    {/* 직급명 */}
-                    <span className="flex-1 font-medium">{rank.name}</span>
+                      {/* 직급명 */}
+                      <span className="flex-1 min-w-0 font-medium">{rank.name}</span>
 
-                    {/* 액션 버튼 */}
-                    <div className="flex gap-1">
+                      {/* 액션 버튼 (PC) */}
+                      <div className="hidden sm:flex gap-1">
+                        <Button
+                          variant="ghost"
+                          size="sm"
+                          onClick={() => handleEdit(rank)}
+                          className="h-8 w-8 p-0"
+                          disabled={isSubmitting}
+                        >
+                          <Edit className="h-4 w-4" />
+                          <span className="sr-only">수정</span>
+                        </Button>
+                        <Button
+                          variant="ghost"
+                          size="sm"
+                          onClick={() => deleteDialog.single.open(String(rank.id))}
+                          className="h-8 w-8 p-0 text-destructive hover:text-destructive"
+                          disabled={deleteDialog.isPending}
+                        >
+                          <Trash2 className="h-4 w-4" />
+                          <span className="sr-only">삭제</span>
+                        </Button>
+                      </div>
+                    </div>
+
+                    {/* 액션 버튼 (모바일) */}
+                    <div className="flex sm:hidden gap-1 justify-end mt-2">
                       <Button
                         variant="ghost"
                         size="sm"
@@ -304,7 +330,7 @@ export function RankManagement() {
                         className="h-8 w-8 p-0"
                         disabled={isSubmitting}
                       >
-                        <Pencil className="h-4 w-4" />
+                        <Edit className="h-4 w-4" />
                         <span className="sr-only">수정</span>
                       </Button>
                       <Button
diff --git a/src/components/settings/SubscriptionManagement/SubscriptionManagement.tsx b/src/components/settings/SubscriptionManagement/SubscriptionManagement.tsx
index 971aa4b1..73fef0b7 100644
--- a/src/components/settings/SubscriptionManagement/SubscriptionManagement.tsx
+++ b/src/components/settings/SubscriptionManagement/SubscriptionManagement.tsx
@@ -172,44 +172,38 @@ export function SubscriptionManagement({ initialData }: SubscriptionManagementPr
               </h3>
 
               {/* 사용량 정보 */}
-              <div className="space-y-6">
+              <div className="space-y-5">
                 {/* 사용자 수 */}
-                <div className="flex items-center gap-4">
-                  <div className="w-24 text-sm text-muted-foreground flex-shrink-0">
-                    사용자 수
-                  </div>
-                  <div className="flex-1">
-                    <Progress value={subscription.userLimit ? (subscription.userCount / subscription.userLimit) * 100 : 30} className="h-2" />
-                  </div>
-                  <div className="text-sm text-blue-600 min-w-[100px] text-right">
-                    {subscription.userCount}명 / {subscription.userLimit ? `${subscription.userLimit}명` : '무제한'}
+                <div className="space-y-2">
+                  <div className="flex items-center justify-between">
+                    <span className="text-sm text-muted-foreground">사용자 수</span>
+                    <span className="text-sm text-blue-600">
+                      {subscription.userCount}명 / {subscription.userLimit ? `${subscription.userLimit}명` : '무제한'}
+                    </span>
                   </div>
+                  <Progress value={subscription.userLimit ? (subscription.userCount / subscription.userLimit) * 100 : 30} className="h-2" />
                 </div>
 
                 {/* 저장 공간 */}
-                <div className="flex items-center gap-4">
-                  <div className="w-24 text-sm text-muted-foreground flex-shrink-0">
-                    저장 공간
-                  </div>
-                  <div className="flex-1">
-                    <Progress value={storageProgress} className="h-2" />
-                  </div>
-                  <div className="text-sm text-blue-600 min-w-[120px] text-right">
-                    {subscription.storageUsedFormatted} / {subscription.storageLimitFormatted}
+                <div className="space-y-2">
+                  <div className="flex items-center justify-between">
+                    <span className="text-sm text-muted-foreground">저장 공간</span>
+                    <span className="text-sm text-blue-600">
+                      {subscription.storageUsedFormatted} / {subscription.storageLimitFormatted}
+                    </span>
                   </div>
+                  <Progress value={storageProgress} className="h-2" />
                 </div>
 
                 {/* AI API 호출 */}
-                <div className="flex items-center gap-4">
-                  <div className="w-24 text-sm text-muted-foreground flex-shrink-0">
-                    AI API 호출
-                  </div>
-                  <div className="flex-1">
-                    <Progress value={apiProgress} className="h-2" />
-                  </div>
-                  <div className="text-sm text-blue-600 min-w-[100px] text-right">
-                    {formatNumber(apiCallsUsed)} / {formatNumber(apiCallsLimit)}
+                <div className="space-y-2">
+                  <div className="flex items-center justify-between">
+                    <span className="text-sm text-muted-foreground">AI API 호출</span>
+                    <span className="text-sm text-blue-600">
+                      {formatNumber(apiCallsUsed)} / {formatNumber(apiCallsLimit)}
+                    </span>
                   </div>
+                  <Progress value={apiProgress} className="h-2" />
                 </div>
               </div>
             </CardContent>
diff --git a/src/components/settings/TitleManagement/index.tsx b/src/components/settings/TitleManagement/index.tsx
index c164adc3..3c2ed3b5 100644
--- a/src/components/settings/TitleManagement/index.tsx
+++ b/src/components/settings/TitleManagement/index.tsx
@@ -3,7 +3,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
-import { Briefcase, Plus, GripVertical, Pencil, Trash2, Loader2 } from 'lucide-react';
+import { Briefcase, Plus, GripVertical, Edit, Trash2, Loader2 } from 'lucide-react';
 import { ReorderButtons } from '@/components/molecules';
 import { ContentSkeleton } from '@/components/ui/skeleton';
 import { Button } from '@/components/ui/button';
@@ -270,33 +270,59 @@ export function TitleManagement() {
                     onDragStart={(e) => handleDragStart(e, index)}
                     onDragEnd={handleDragEnd}
                     onDragOver={(e) => handleDragOver(e, index)}
-                    className={`flex items-center gap-3 px-4 py-3 hover:bg-muted/50 transition-colors cursor-move ${
+                    className={`px-4 py-3 hover:bg-muted/50 transition-colors cursor-move ${
                       draggedItem === index ? 'opacity-50 bg-muted' : ''
                     }`}
                   >
-                    {/* 드래그 핸들 (PC만) */}
-                    <GripVertical className="h-5 w-5 text-muted-foreground flex-shrink-0 hidden md:block" />
+                    <div className="flex items-center gap-3">
+                      {/* 드래그 핸들 (PC만) */}
+                      <GripVertical className="h-5 w-5 text-muted-foreground flex-shrink-0 hidden md:block" />
 
-                    {/* 순서 변경 버튼 */}
-                    <ReorderButtons
-                      onMoveUp={() => handleMoveItem(index, index - 1)}
-                      onMoveDown={() => handleMoveItem(index, index + 1)}
-                      isFirst={index === 0}
-                      isLast={index === titles.length - 1}
-                      disabled={isSubmitting}
-                      size="xs"
-                    />
+                      {/* 순서 변경 버튼 */}
+                      <ReorderButtons
+                        onMoveUp={() => handleMoveItem(index, index - 1)}
+                        onMoveDown={() => handleMoveItem(index, index + 1)}
+                        isFirst={index === 0}
+                        isLast={index === titles.length - 1}
+                        disabled={isSubmitting}
+                        size="xs"
+                      />
 
-                    {/* 순서 번호 */}
-                    <span className="text-sm text-muted-foreground w-8">
-                      {index + 1}
-                    </span>
+                      {/* 순서 번호 */}
+                      <span className="text-sm text-muted-foreground w-8">
+                        {index + 1}
+                      </span>
 
-                    {/* 직책명 */}
-                    <span className="flex-1 font-medium">{title.name}</span>
+                      {/* 직책명 */}
+                      <span className="flex-1 min-w-0 font-medium">{title.name}</span>
 
-                    {/* 액션 버튼 */}
-                    <div className="flex gap-1">
+                      {/* 액션 버튼 (PC) */}
+                      <div className="hidden sm:flex gap-1">
+                        <Button
+                          variant="ghost"
+                          size="sm"
+                          onClick={() => handleEdit(title)}
+                          className="h-8 w-8 p-0"
+                          disabled={isSubmitting}
+                        >
+                          <Edit className="h-4 w-4" />
+                          <span className="sr-only">수정</span>
+                        </Button>
+                        <Button
+                          variant="ghost"
+                          size="sm"
+                          onClick={() => deleteDialog.single.open(String(title.id))}
+                          className="h-8 w-8 p-0 text-destructive hover:text-destructive"
+                          disabled={deleteDialog.isPending}
+                        >
+                          <Trash2 className="h-4 w-4" />
+                          <span className="sr-only">삭제</span>
+                        </Button>
+                      </div>
+                    </div>
+
+                    {/* 액션 버튼 (모바일) */}
+                    <div className="flex sm:hidden gap-1 justify-end mt-2">
                       <Button
                         variant="ghost"
                         size="sm"
@@ -304,7 +330,7 @@ export function TitleManagement() {
                         className="h-8 w-8 p-0"
                         disabled={isSubmitting}
                       >
-                        <Pencil className="h-4 w-4" />
+                        <Edit className="h-4 w-4" />
                         <span className="sr-only">수정</span>
                       </Button>
                       <Button
diff --git a/src/components/settings/WorkScheduleManagement/index.tsx b/src/components/settings/WorkScheduleManagement/index.tsx
index c1539cb7..c53ef090 100644
--- a/src/components/settings/WorkScheduleManagement/index.tsx
+++ b/src/components/settings/WorkScheduleManagement/index.tsx
@@ -183,7 +183,7 @@ export function WorkScheduleManagement() {
                 onValueChange={(value: EmploymentType) => handleEmploymentTypeChange(value)}
                 disabled={isLoading}
               >
-                <SelectTrigger className="w-64">
+                <SelectTrigger className="w-full md:w-64">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>
@@ -229,13 +229,13 @@ export function WorkScheduleManagement() {
             <CardTitle className="text-lg">1일 기준 근로시간</CardTitle>
           </CardHeader>
           <CardContent>
-            <div className="grid grid-cols-2 gap-6">
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-6">
               <div className="space-y-2">
                 <Label>출근 시간</Label>
                 <TimePicker
                   value={settings.workStartTime}
                   onChange={(value) => setSettings(prev => ({ ...prev, workStartTime: value }))}
-                  className="w-40"
+                  className="w-full sm:w-40"
                   minuteStep={1}
                 />
               </div>
@@ -244,7 +244,7 @@ export function WorkScheduleManagement() {
                 <TimePicker
                   value={settings.workEndTime}
                   onChange={(value) => setSettings(prev => ({ ...prev, workEndTime: value }))}
-                  className="w-40"
+                  className="w-full sm:w-40"
                   minuteStep={1}
                 />
               </div>
@@ -258,7 +258,7 @@ export function WorkScheduleManagement() {
             <CardTitle className="text-lg">주당 근로시간</CardTitle>
           </CardHeader>
           <CardContent>
-            <div className="grid grid-cols-2 gap-6">
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-6">
               <div className="space-y-2">
                 <Label htmlFor="weekly-hours">주당 기준 근로시간</Label>
                 <div className="flex items-center gap-2">
@@ -270,9 +270,9 @@ export function WorkScheduleManagement() {
                     onChange={(value) =>
                       setSettings(prev => ({ ...prev, weeklyWorkHours: value ?? 0 }))
                     }
-                    className="w-24"
+                    className="flex-1 sm:w-24 sm:flex-none"
                   />
-                  <span className="text-sm text-muted-foreground">시간</span>
+                  <span className="text-sm text-muted-foreground shrink-0">시간</span>
                 </div>
               </div>
               <div className="space-y-2">
@@ -286,9 +286,9 @@ export function WorkScheduleManagement() {
                     onChange={(value) =>
                       setSettings(prev => ({ ...prev, weeklyOvertimeHours: value ?? 0 }))
                     }
-                    className="w-24"
+                    className="flex-1 sm:w-24 sm:flex-none"
                   />
-                  <span className="text-sm text-muted-foreground">시간</span>
+                  <span className="text-sm text-muted-foreground shrink-0">시간</span>
                 </div>
               </div>
             </div>
@@ -301,13 +301,13 @@ export function WorkScheduleManagement() {
             <CardTitle className="text-lg">1일 기준 휴게시간</CardTitle>
           </CardHeader>
           <CardContent>
-            <div className="grid grid-cols-2 gap-6">
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-6">
               <div className="space-y-2">
                 <Label>휴게 시작</Label>
                 <TimePicker
                   value={settings.breakStartTime}
                   onChange={(value) => setSettings(prev => ({ ...prev, breakStartTime: value }))}
-                  className="w-40"
+                  className="w-full sm:w-40"
                   minuteStep={1}
                 />
               </div>
@@ -316,7 +316,7 @@ export function WorkScheduleManagement() {
                 <TimePicker
                   value={settings.breakEndTime}
                   onChange={(value) => setSettings(prev => ({ ...prev, breakEndTime: value }))}
-                  className="w-40"
+                  className="w-full sm:w-40"
                   minuteStep={1}
                 />
               </div>