diff --git a/app/game-frontend/e2e/mainNavigation.spec.ts b/app/game-frontend/e2e/mainNavigation.spec.ts
index 6921b970..daa3b475 100644
--- a/app/game-frontend/e2e/mainNavigation.spec.ts
+++ b/app/game-frontend/e2e/mainNavigation.spec.ts
@@ -1048,6 +1048,9 @@ const persistArtifact = async (page: Page, name: string) => {
             gameHeader: describe('.game-shell__header'),
             gameTitle: describe('.game-shell__title'),
             gameHeaderActions: describe('.desktop-action-controls'),
+            headerRealtime: describe('.desktop-action-controls__realtime'),
+            headerRefresh: describe('.desktop-action-controls__refresh'),
+            headerLobby: describe('.desktop-action-controls__lobby'),
             legacyGameInfo: describe('.legacy-game-info'),
             activityStatus: describe('.activity-status'),
             executionStatus: describe('.execution-status'),
@@ -2390,7 +2393,9 @@ test('the 939/940 boundary switches to the Ref-style 500px single document', asy
         const headerActionsRect = headerActions.getBoundingClientRect();
         return {
             headerHeight: headerRect.height,
+            headerLeft: headerRect.left,
             headerRight: headerRect.right,
+            headerActionsLeft: headerActionsRect.left,
             headerActionsRight: headerActionsRect.right,
             width: element.getBoundingClientRect().width,
             executionWidth: execution.getBoundingClientRect().width,
@@ -2399,7 +2404,9 @@ test('the 939/940 boundary switches to the Ref-style 500px single document', asy
             columns: getComputedStyle(element).gridTemplateColumns,
         };
     });
-    expect(activityGeometry.headerHeight).toBeLessThan(60);
+    expect(activityGeometry.headerHeight).toBeGreaterThan(90);
+    expect(activityGeometry.headerHeight).toBeLessThan(110);
+    expect(activityGeometry.headerActionsLeft).toBeGreaterThanOrEqual(activityGeometry.headerLeft);
     expect(activityGeometry.headerActionsRight).toBeLessThanOrEqual(activityGeometry.headerRight);
     expect(activityGeometry.width).toBe(500);
     expect(activityGeometry.executionWidth).toBeCloseTo(166.67, 0);
@@ -3179,6 +3186,78 @@ test('all main Lumen button families share the rounded pressed geometry', async
     await persistArtifact(page, `${basePath.slice(1)}-main-lumen-button-families`);
 });
 
+test('lobby action is separated on desktop and anchors opposite the refresh action on mobile', async ({ page }) => {
+    const state: NavigationFixture = {
+        officerLevel: 5,
+        permission: 2,
+        nationLevel: 3,
+        stage: 0,
+        npcMode: 1,
+        generalMeCalls: 0,
+        operations: [],
+    };
+    await installFixture(page, state);
+    await page.setViewportSize({ width: 1200, height: 900 });
+    await waitForMain(page);
+
+    const actions = page.locator('.desktop-action-controls');
+    const realtime = page.locator('.desktop-action-controls__realtime');
+    const refresh = page.locator('.desktop-action-controls__refresh');
+    const lobby = page.locator('.desktop-action-controls__lobby');
+    const measure = () =>
+        page.evaluate(() => {
+            const rect = (selector: string) => {
+                const element = document.querySelector<HTMLElement>(selector);
+                if (!element) throw new Error(`${selector} is missing`);
+                const box = element.getBoundingClientRect();
+                return { left: box.left, right: box.right, top: box.top, bottom: box.bottom, width: box.width };
+            };
+            const actionStyle = getComputedStyle(document.querySelector<HTMLElement>('.desktop-action-controls')!);
+            return {
+                actions: rect('.desktop-action-controls'),
+                realtime: rect('.desktop-action-controls__realtime'),
+                refresh: rect('.desktop-action-controls__refresh'),
+                lobby: rect('.desktop-action-controls__lobby'),
+                title: rect('.game-shell__title'),
+                display: actionStyle.display,
+                columns: actionStyle.gridTemplateColumns,
+            };
+        });
+
+    await expect(actions).toHaveCSS('display', 'flex');
+    let layout = await measure();
+    expect(layout.lobby.left - layout.refresh.right).toBeGreaterThanOrEqual(20);
+    expect(layout.refresh.top).toBeCloseTo(layout.lobby.top, 2);
+    expect(layout.refresh.width).toBeLessThanOrEqual(62);
+    expect(layout.lobby.width).toBeLessThanOrEqual(62);
+
+    await page.setViewportSize({ width: 500, height: 900 });
+    await expect(actions).toHaveCSS('display', 'grid');
+    await expect(realtime).toBeVisible();
+    await expect(refresh).toBeVisible();
+    await expect(lobby).toBeVisible();
+    layout = await measure();
+    expect(layout.columns.split(' ')).toHaveLength(3);
+    expect(layout.actions.left).toBeCloseTo(0, 2);
+    expect(layout.actions.right).toBeCloseTo(500, 2);
+    expect(layout.refresh.left).toBeCloseTo(layout.actions.left, 2);
+    expect(layout.lobby.right).toBeCloseTo(layout.actions.right, 2);
+    expect(layout.refresh.right).toBeLessThan(layout.realtime.left);
+    expect(layout.realtime.right).toBeLessThan(layout.lobby.left);
+    expect(layout.refresh.top).toBeCloseTo(layout.lobby.top, 2);
+    expect(layout.actions.top).toBeGreaterThanOrEqual(layout.title.bottom);
+    expect(layout.refresh.width).toBeLessThanOrEqual(62);
+    expect(layout.lobby.width).toBeLessThanOrEqual(62);
+    expect(
+        await page.evaluate(() => ({
+            document: document.documentElement.scrollWidth - document.documentElement.clientWidth,
+            body: document.body.scrollWidth - document.body.clientWidth,
+        }))
+    ).toEqual({ document: 0, body: 0 });
+
+    await persistArtifact(page, `${basePath.slice(1)}-main-lobby-action-layout`);
+});
+
 test('mobile main Lumen button families keep the same state geometry without overflow', async ({ page }) => {
     const state: NavigationFixture = {
         officerLevel: 5,
diff --git a/app/game-frontend/src/views/MainView.vue b/app/game-frontend/src/views/MainView.vue
index ea2b0bda..0116365b 100644
--- a/app/game-frontend/src/views/MainView.vue
+++ b/app/game-frontend/src/views/MainView.vue
@@ -225,7 +225,7 @@ watch(
             </h1>
             <div class="game-shell__actions desktop-action-controls">
                 <button
-                    class="game-shell__action toggle legacy-button legacy-button--navigation"
+                    class="game-shell__action desktop-action-controls__realtime toggle legacy-button legacy-button--navigation"
                     :class="{ active: realtimeEnabled }"
                     type="button"
                     @click="dashboard.setRealtimeEnabled(!realtimeEnabled)"
@@ -233,7 +233,7 @@ watch(
                     실시간 동기화: {{ realtimeLabel }}
                 </button>
                 <button
-                    class="game-shell__action legacy-button legacy-button--navigation"
+                    class="game-shell__action desktop-action-controls__refresh legacy-button legacy-button--navigation"
                     type="button"
                     :aria-busy="refreshing"
                     @click="requestManualRefresh"
@@ -241,7 +241,7 @@ watch(
                     갱 신
                 </button>
                 <button
-                    class="game-shell__action legacy-button legacy-button--navigation"
+                    class="game-shell__action desktop-action-controls__lobby legacy-button legacy-button--navigation"
                     type="button"
                     @click="moveLobby"
                 >
@@ -916,6 +916,10 @@ button {
     font-weight: 400;
 }
 
+.desktop-action-controls__lobby {
+    margin-left: 12px;
+}
+
 .placeholder {
     font-size: 0.85rem;
     color: rgba(232, 221, 196, 0.7);
@@ -930,7 +934,12 @@ button {
     }
 
     .desktop-action-controls {
-        gap: 4px;
+        display: grid;
+        width: 100%;
+        grid-template-areas: 'refresh realtime lobby';
+        grid-template-columns: max-content 1fr max-content;
+        align-items: start;
+        gap: 0;
     }
 
     .desktop-action-controls .game-shell__action {
@@ -938,6 +947,22 @@ button {
         padding-left: 4px;
     }
 
+    .desktop-action-controls__refresh {
+        grid-area: refresh;
+        justify-self: start;
+    }
+
+    .desktop-action-controls__realtime {
+        grid-area: realtime;
+        justify-self: center;
+    }
+
+    .desktop-action-controls__lobby {
+        grid-area: lobby;
+        justify-self: end;
+        margin-left: 0;
+    }
+
     .main-page {
         width: 500px;
         min-height: 3688px;