diff --git a/frontend/app/(main)/admin/systemMng/tableMngList/page.tsx b/frontend/app/(main)/admin/systemMng/tableMngList/page.tsx
index 44051e28..d98c2115 100644
--- a/frontend/app/(main)/admin/systemMng/tableMngList/page.tsx
+++ b/frontend/app/(main)/admin/systemMng/tableMngList/page.tsx
@@ -217,10 +217,16 @@ export default function TableManagementPage() {
   // 메모이제이션된 입력타입 옵션
   const memoizedInputTypeOptions = useMemo(() => inputTypeOptions, []);
 
-  // 참조 테이블 옵션 (실제 테이블 목록에서 가져옴)
+  // 참조 테이블 옵션 (한글라벨 (영어명) 동시 표시)
   const referenceTableOptions = [
     { value: "none", label: getTextFromUI(TABLE_MANAGEMENT_KEYS.LABEL_NONE, "선택 안함") },
-    ...tables.map((table) => ({ value: table.tableName, label: table.displayName || table.tableName })),
+    ...tables.map((table) => ({
+      value: table.tableName,
+      label:
+        table.displayName && table.displayName !== table.tableName
+          ? `${table.displayName} (${table.tableName})`
+          : table.tableName,
+    })),
   ];
 
   // 공통 코드 카테고리 목록 상태
@@ -1596,6 +1602,8 @@ export default function TableManagementPage() {
                     onIndexToggle={(columnName, checked) =>
                       handleIndexToggle(columnName, "index", checked)
                     }
+                    tables={tables}
+                    referenceTableColumns={referenceTableColumns}
                   />
                 </>
               )}
@@ -1795,11 +1803,16 @@ export default function TableManagementPage() {
                 <p className="text-sm font-medium">변경될 PK 컬럼:</p>
                 {pendingPkColumns.length > 0 ? (
                   <div className="mt-2 flex flex-wrap gap-2">
-                    {pendingPkColumns.map((col) => (
-                      <Badge key={col} variant="secondary" className="font-mono text-xs">
-                        {col}
-                      </Badge>
-                    ))}
+                    {pendingPkColumns.map((col) => {
+                      const colInfo = columns.find((c) => c.columnName === col);
+                      return (
+                        <Badge key={col} variant="secondary" className="text-xs">
+                          {colInfo?.displayName && colInfo.displayName !== col
+                            ? `${colInfo.displayName} (${col})`
+                            : col}
+                        </Badge>
+                      );
+                    })}
                   </div>
                 ) : (
                   <p className="text-destructive mt-2 text-sm">PK가 모두 제거됩니다</p>
diff --git a/frontend/components/admin/table-type/ColumnDetailPanel.tsx b/frontend/components/admin/table-type/ColumnDetailPanel.tsx
index 77f5dedf..5e4e2a07 100644
--- a/frontend/components/admin/table-type/ColumnDetailPanel.tsx
+++ b/frontend/components/admin/table-type/ColumnDetailPanel.tsx
@@ -78,7 +78,16 @@ export function ColumnDetailPanel({
 
   const refTableOpts = referenceTableOptions.length
     ? referenceTableOptions
-    : [{ value: "none", label: "선택 안함" }, ...tables.map((t) => ({ value: t.tableName, label: t.displayName || t.tableName }))];
+    : [
+        { value: "none", label: "선택 안함" },
+        ...tables.map((t) => ({
+          value: t.tableName,
+          label:
+            t.displayName && t.displayName !== t.tableName
+              ? `${t.displayName} (${t.tableName})`
+              : t.tableName,
+        })),
+      ];
 
   return (
     <div className="flex h-full w-full flex-col border-l bg-card">
@@ -90,7 +99,11 @@ export function ColumnDetailPanel({
               {typeConf.label}
             </span>
           )}
-          <span className="truncate font-mono text-sm font-medium">{column.columnName}</span>
+          <span className="truncate text-sm font-medium">
+            {column.displayName && column.displayName !== column.columnName
+              ? `${column.displayName} (${column.columnName})`
+              : column.columnName}
+          </span>
         </div>
         <Button type="button" variant="ghost" size="icon" className="h-8 w-8 shrink-0" onClick={onClose} aria-label="닫기">
           <X className="h-4 w-4" />
@@ -207,7 +220,12 @@ export function ColumnDetailPanel({
                       className="h-9 w-full justify-between text-xs"
                     >
                       {column.referenceColumn && column.referenceColumn !== "none"
-                        ? column.referenceColumn
+                        ? (() => {
+                            const matched = refColumns.find((c) => c.columnName === column.referenceColumn);
+                            return matched?.displayName && matched.displayName !== column.referenceColumn
+                              ? `${matched.displayName} (${column.referenceColumn})`
+                              : column.referenceColumn;
+                          })()
                         : "컬럼 선택..."}
                       <ChevronsUpDown className="ml-2 h-3 w-3 opacity-50" />
                     </Button>
@@ -245,7 +263,13 @@ export function ColumnDetailPanel({
                                   column.referenceColumn === refCol.columnName ? "opacity-100" : "opacity-0",
                                 )}
                               />
-                              {refCol.columnName}
+                              <div className="flex flex-col">
+                                <span className="font-medium">
+                                  {refCol.displayName && refCol.displayName !== refCol.columnName
+                                    ? `${refCol.displayName} (${refCol.columnName})`
+                                    : refCol.columnName}
+                                </span>
+                              </div>
                             </CommandItem>
                           ))}
                         </CommandGroup>
@@ -259,12 +283,20 @@ export function ColumnDetailPanel({
             {/* 참조 요약 미니맵 */}
             {column.referenceTable && column.referenceTable !== "none" && column.referenceColumn && (
               <div className="flex items-center gap-2 rounded-md bg-violet-50 px-3 py-2">
-                <span className="font-mono text-[11px] font-semibold text-violet-600">
-                  {column.referenceTable}
+                <span className="text-[11px] font-semibold text-violet-600">
+                  {(() => {
+                    const tbl = refTableOpts.find((o) => o.value === column.referenceTable);
+                    return tbl?.label ?? column.referenceTable;
+                  })()}
                 </span>
                 <span className="text-muted-foreground text-[10px]">→</span>
-                <span className="font-mono text-[11px] font-semibold text-violet-600">
-                  {column.referenceColumn}
+                <span className="text-[11px] font-semibold text-violet-600">
+                  {(() => {
+                    const col = refColumns.find((c) => c.columnName === column.referenceColumn);
+                    return col?.displayName && col.displayName !== column.referenceColumn
+                      ? `${col.displayName} (${column.referenceColumn})`
+                      : column.referenceColumn;
+                  })()}
                 </span>
               </div>
             )}
diff --git a/frontend/components/admin/table-type/ColumnGrid.tsx b/frontend/components/admin/table-type/ColumnGrid.tsx
index c03c7516..825dbd36 100644
--- a/frontend/components/admin/table-type/ColumnGrid.tsx
+++ b/frontend/components/admin/table-type/ColumnGrid.tsx
@@ -5,8 +5,9 @@ import { MoreHorizontal, Database, Layers, FileStack } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { cn } from "@/lib/utils";
-import type { ColumnTypeInfo } from "./types";
+import type { ColumnTypeInfo, TableInfo } from "./types";
 import { INPUT_TYPE_COLORS, getColumnGroup } from "./types";
+import type { ReferenceTableColumn } from "@/lib/api/entityJoin";
 
 export interface ColumnGridConstraints {
   primaryKey: { columns: string[] };
@@ -23,6 +24,9 @@ export interface ColumnGridProps {
   getColumnIndexState?: (columnName: string) => { isPk: boolean; hasIndex: boolean };
   onPkToggle?: (columnName: string, checked: boolean) => void;
   onIndexToggle?: (columnName: string, checked: boolean) => void;
+  /** 호버 시 한글 라벨 표시용 (Badge title) */
+  tables?: TableInfo[];
+  referenceTableColumns?: Record<string, ReferenceTableColumn[]>;
 }
 
 function getIndexState(
@@ -53,6 +57,8 @@ export function ColumnGrid({
   getColumnIndexState: externalGetIndexState,
   onPkToggle,
   onIndexToggle,
+  tables,
+  referenceTableColumns,
 }: ColumnGridProps) {
   const getIdxState = useMemo(
     () => externalGetIndexState ?? ((name: string) => getIndexState(name, constraints)),
@@ -136,13 +142,12 @@ export function ColumnGrid({
                       {/* 4px 색상바 (타입별 진한 색) */}
                       <div className={cn("h-full min-h-8 w-1 rounded-full", typeConf.barColor)} />
 
-                      {/* 라벨 + 컬럼명 */}
+                      {/* 라벨 + 컬럼명 (한글라벨 (영어명) 동시 표시) */}
                       <div className="min-w-0">
                         <div className="truncate text-sm font-medium">
-                          {column.displayName || column.columnName}
-                        </div>
-                        <div className="truncate font-mono text-xs text-muted-foreground">
-                          {column.columnName}
+                          {column.displayName && column.displayName !== column.columnName
+                            ? `${column.displayName} (${column.columnName})`
+                            : column.columnName}
                         </div>
                       </div>
 
@@ -150,11 +155,38 @@ export function ColumnGrid({
                       <div className="flex min-w-0 flex-wrap gap-1">
                         {column.inputType === "entity" && column.referenceTable && column.referenceTable !== "none" && (
                           <>
-                            <Badge variant="outline" className="text-xs font-normal">
+                            <Badge
+                              variant="outline"
+                              className="text-xs font-normal"
+                              title={
+                                tables
+                                  ? (() => {
+                                      const t = tables.find((tb) => tb.tableName === column.referenceTable);
+                                      return t?.displayName && t.displayName !== t.tableName
+                                        ? `${t.displayName} (${column.referenceTable})`
+                                        : column.referenceTable;
+                                    })()
+                                  : column.referenceTable
+                              }
+                            >
                               {column.referenceTable}
                             </Badge>
                             <span className="text-muted-foreground text-xs">→</span>
-                            <Badge variant="outline" className="text-xs font-normal">
+                            <Badge
+                              variant="outline"
+                              className="text-xs font-normal"
+                              title={
+                                referenceTableColumns?.[column.referenceTable]
+                                  ? (() => {
+                                      const refCols = referenceTableColumns[column.referenceTable];
+                                      const c = refCols.find((rc) => rc.columnName === (column.referenceColumn ?? ""));
+                                      return c?.displayName && c.displayName !== c.columnName
+                                        ? `${c.displayName} (${column.referenceColumn})`
+                                        : column.referenceColumn ?? "—";
+                                    })()
+                                  : column.referenceColumn ?? "—"
+                              }
+                            >
                               {column.referenceColumn || "—"}
                             </Badge>
                           </>
diff --git a/frontend/components/layout/AppLayout.tsx b/frontend/components/layout/AppLayout.tsx
index c80cb581..d2f13c79 100644
--- a/frontend/components/layout/AppLayout.tsx
+++ b/frontend/components/layout/AppLayout.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, Suspense, useEffect } from "react";
+import { useState, Suspense, useEffect, useCallback } from "react";
 import { useRouter, usePathname, useSearchParams } from "next/navigation";
 import { Button } from "@/components/ui/button";
 import {
@@ -341,6 +341,10 @@ function AppLayoutInner({ children }: AppLayoutProps) {
 
   const currentMenus = isAdminMode ? adminMenus : userMenus;
 
+  const currentTabs = useTabStore((s) => s[s.mode].tabs);
+  const currentActiveTabId = useTabStore((s) => s[s.mode].activeTabId);
+  const activeTab = currentTabs.find((t) => t.id === currentActiveTabId);
+
   const toggleMenu = (menuId: string) => {
     const newExpanded = new Set(expandedMenus);
     if (newExpanded.has(menuId)) {
@@ -478,6 +482,26 @@ function AppLayoutInner({ children }: AppLayoutProps) {
     }
   };
 
+  // pathname + 활성 탭 기반 활성 메뉴 판별 (탭 네비게이션에서도 사이드바 활성 표시)
+  const isMenuActive = useCallback(
+    (menu: any): boolean => {
+      if (pathname === menu.url) return true;
+      if (!activeTab) return false;
+
+      const menuObjid = parseInt((menu.objid || menu.id)?.toString() || "0");
+
+      if (activeTab.type === "admin" && activeTab.adminUrl) {
+        return menu.url === activeTab.adminUrl;
+      }
+      if (activeTab.type === "screen") {
+        if (activeTab.menuObjid != null && menuObjid === activeTab.menuObjid) return true;
+        if (activeTab.screenId != null && menu.screenId === activeTab.screenId) return true;
+      }
+      return false;
+    },
+    [pathname, activeTab],
+  );
+
   // 메뉴 트리 렌더링 (기존 MainLayout 스타일 적용)
   const renderMenu = (menu: any, level: number = 0) => {
     const isExpanded = expandedMenus.has(menu.id);
@@ -489,8 +513,8 @@ function AppLayoutInner({ children }: AppLayoutProps) {
           draggable={isLeaf}
           onDragStart={(e) => handleMenuDragStart(e, menu)}
           className={`group flex min-h-[44px] cursor-pointer items-center justify-between rounded-md px-3 py-2 text-sm font-medium transition-colors duration-150 ease-in-out sm:min-h-[40px] ${
-            pathname === menu.url
-              ? "border-primary bg-primary/8 text-primary border-l-3 font-semibold"
+            isMenuActive(menu)
+              ? "border-l-[3px] border-l-primary bg-primary/10 dark:bg-primary/15 text-primary font-semibold"
               : isExpanded
                 ? "bg-accent/60 text-foreground"
                 : "text-muted-foreground hover:bg-accent hover:text-foreground"
@@ -518,8 +542,8 @@ function AppLayoutInner({ children }: AppLayoutProps) {
                 draggable={!child.hasChildren}
                 onDragStart={(e) => handleMenuDragStart(e, child)}
                 className={`flex min-h-[44px] cursor-pointer items-center rounded-md px-3 py-2 text-sm transition-colors duration-150 hover:cursor-pointer sm:min-h-[40px] ${
-                  pathname === child.url
-                    ? "border-primary bg-primary/8 text-primary border-l-3 font-semibold"
+                  isMenuActive(child)
+                    ? "border-l-[3px] border-l-primary bg-primary/10 dark:bg-primary/15 text-primary font-semibold"
                     : "text-muted-foreground hover:bg-accent hover:text-foreground"
                 }`}
                 onClick={() => handleMenuClick(child)}
@@ -557,6 +581,28 @@ function AppLayoutInner({ children }: AppLayoutProps) {
 
   const uiMenus = convertMenuToUI(currentMenus, user as ExtendedUserInfo);
 
+  // 활성 탭에 해당하는 메뉴가 속한 부모 메뉴 자동 확장
+  useEffect(() => {
+    if (!activeTab || uiMenus.length === 0) return;
+
+    const toExpand: string[] = [];
+    for (const menu of uiMenus) {
+      if (menu.hasChildren && menu.children) {
+        const hasActiveChild = menu.children.some((child: any) => isMenuActive(child));
+        if (hasActiveChild && !expandedMenus.has(menu.id)) {
+          toExpand.push(menu.id);
+        }
+      }
+    }
+    if (toExpand.length > 0) {
+      setExpandedMenus((prev) => {
+        const next = new Set(prev);
+        toExpand.forEach((id) => next.add(id));
+        return next;
+      });
+    }
+  }, [activeTab, uiMenus, isMenuActive, expandedMenus]);
+
   return (
     <div className="bg-background flex h-screen flex-col">
       {/* 모바일 헤더 */}
diff --git a/frontend/components/table-category/CategoryColumnList.tsx b/frontend/components/table-category/CategoryColumnList.tsx
index 2aed73fd..1b1bf0a5 100644
--- a/frontend/components/table-category/CategoryColumnList.tsx
+++ b/frontend/components/table-category/CategoryColumnList.tsx
@@ -5,6 +5,7 @@ import { apiClient } from "@/lib/api/client";
 import { getCategoryValues } from "@/lib/api/tableCategoryValue";
 import { ChevronRight, FolderTree, Loader2, Search, X } from "lucide-react";
 import { Input } from "@/components/ui/input";
+import { cn } from "@/lib/utils";
 
 export interface CategoryColumn {
   tableName: string;
diff --git a/frontend/components/ui/tabs.tsx b/frontend/components/ui/tabs.tsx
index 95fdc082..568d44ed 100644
--- a/frontend/components/ui/tabs.tsx
+++ b/frontend/components/ui/tabs.tsx
@@ -26,7 +26,7 @@ function TabsList({
     <TabsPrimitive.List
       data-slot="tabs-list"
       className={cn(
-        "bg-muted/30 text-muted-foreground inline-flex h-9 w-fit items-center justify-center rounded-lg p-[3px]",
+        "bg-muted/50 text-muted-foreground inline-flex h-10 w-fit items-center justify-center rounded-lg border border-border/50 p-1",
         className
       )}
       {...props}
@@ -42,7 +42,7 @@ function TabsTrigger({
     <TabsPrimitive.Trigger
       data-slot="tabs-trigger"
       className={cn(
-        "data-[state=active]:bg-background dark:data-[state=active]:text-foreground focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring dark:data-[state=active]:border-input dark:data-[state=active]:bg-input/30 text-foreground dark:text-muted-foreground inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md px-2 py-1 text-sm font-medium whitespace-nowrap transition-[color,box-shadow] focus-visible:ring-[3px] focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 data-[state=active]:shadow-sm [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "data-[state=active]:bg-background data-[state=active]:font-semibold dark:data-[state=active]:text-foreground focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring dark:data-[state=active]:border-input dark:data-[state=active]:bg-input/30 text-foreground dark:text-foreground/70 inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md px-2 py-1 text-sm font-medium whitespace-nowrap transition-[color,box-shadow] focus-visible:ring-[3px] focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 data-[state=active]:shadow-sm [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
         className
       )}
       {...props}
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
index ae6c4fe4..28acdbe6 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
@@ -3981,8 +3981,8 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                       className={cn(
                         "px-3 py-1 text-sm font-medium transition-colors",
                         activeTabIndex === 0
-                          ? "text-foreground border-b-2 border-primary"
-                          : "text-muted-foreground hover:text-foreground"
+                          ? "text-primary border-b-2 border-primary font-semibold bg-primary/5"
+                          : "text-foreground/70 hover:text-foreground hover:bg-muted/30"
                       )}
                     >
                       {componentConfig.rightPanel?.title || "기본"}
@@ -3994,8 +3994,8 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                         className={cn(
                           "px-3 py-1 text-sm font-medium transition-colors",
                           activeTabIndex === index + 1
-                            ? "text-foreground border-b-2 border-primary"
-                            : "text-muted-foreground hover:text-foreground"
+                            ? "text-primary border-b-2 border-primary font-semibold bg-primary/5"
+                            : "text-foreground/70 hover:text-foreground hover:bg-muted/30"
                         )}
                       >
                         {tab.label || `탭 ${index + 1}`}
diff --git a/frontend/lib/registry/components/v2-tabs-widget/tabs-component.tsx b/frontend/lib/registry/components/v2-tabs-widget/tabs-component.tsx
index ac6b208e..03de3cc1 100644
--- a/frontend/lib/registry/components/v2-tabs-widget/tabs-component.tsx
+++ b/frontend/lib/registry/components/v2-tabs-widget/tabs-component.tsx
@@ -48,8 +48,8 @@ const TabsDesignEditor: React.FC<{
     return cn(
       "px-4 py-2 text-sm font-medium cursor-pointer transition-colors",
       isActive
-        ? "bg-background border-b-2 border-primary text-primary"
-        : "text-muted-foreground hover:text-foreground hover:bg-muted/50"
+        ? "bg-primary/10 border-b-2 border-primary text-primary font-semibold"
+        : "text-foreground/70 hover:text-foreground hover:bg-muted/50"
     );
   };
 
@@ -283,7 +283,7 @@ const TabsDesignEditor: React.FC<{
   return (
     <div className="flex h-full w-full flex-col overflow-hidden rounded-lg border bg-background">
       {/* 탭 헤더 */}
-      <div className="flex items-center border-b bg-muted/30">
+      <div className="flex items-center border-b bg-muted/50">
         {tabs.length > 0 ? (
           tabs.map((tab) => (
             <div
@@ -649,8 +649,8 @@ ComponentRegistry.registerComponent({
       return cn(
         "px-4 py-2 text-sm font-medium cursor-pointer transition-colors",
         isActive
-          ? "bg-background border-b-2 border-primary text-primary"
-          : "text-muted-foreground hover:text-foreground hover:bg-muted/50"
+          ? "bg-primary/10 border-b-2 border-primary text-primary font-semibold"
+          : "text-foreground/70 hover:text-foreground hover:bg-muted/50"
       );
     };
 
@@ -662,7 +662,7 @@ ComponentRegistry.registerComponent({
         onDragEnd={onDragEnd}
       >
         {/* 탭 헤더 */}
-        <div className="flex items-center border-b bg-muted/30">
+        <div className="flex items-center border-b bg-muted/50">
           {tabs.length > 0 ? (
             tabs.map((tab) => (
               <div