diff --git a/src/layout/components/setting/index.vue b/src/layout/components/setting/index.vue
index 4d18137fe..0676f0584 100644
--- a/src/layout/components/setting/index.vue
+++ b/src/layout/components/setting/index.vue
@@ -387,7 +387,7 @@ onUnmounted(() => removeMatchMedia);
         </li>
       </ul>
 
-      <span v-if="device !== 'mobile'">
+      <span v-if="useAppStoreHook().getViewportWidth > 1280">
         <p :class="['mt-5', pClass]">页宽</p>
         <Segmented
           class="mb-2 select-none"
diff --git a/src/layout/index.vue b/src/layout/index.vue
index 88aa60b95..895b6ab95 100644
--- a/src/layout/index.vue
+++ b/src/layout/index.vue
@@ -89,7 +89,8 @@ let isAutoCloseSidebar = true;
 useResizeObserver(appWrapperRef, entries => {
   if (isMobile) return;
   const entry = entries[0];
-  const [{ inlineSize: width }] = entry.borderBoxSize;
+  const [{ inlineSize: width, blockSize: height }] = entry.borderBoxSize;
+  useAppStoreHook().setViewportSize({ width, height });
   width <= 760 ? setTheme("vertical") : setTheme(useAppStoreHook().layout);
   /** width app-wrapper类容器宽度
    * 0 < width <= 760 隐藏侧边栏
diff --git a/src/store/modules/app.ts b/src/store/modules/app.ts
index fa626f73d..4fe0b8226 100644
--- a/src/store/modules/app.ts
+++ b/src/store/modules/app.ts
@@ -21,6 +21,11 @@ export const useAppStore = defineStore({
         `${responsiveStorageNameSpace()}layout`
       )?.layout ?? getConfig().Layout,
     device: deviceDetection() ? "mobile" : "desktop",
+    // 浏览器窗口的可视区域大小
+    viewportSize: {
+      width: document.documentElement.clientWidth,
+      height: document.documentElement.clientHeight
+    },
     // 作用于 src/views/components/draggable/index.vue 页面，当离开页面并不会销毁 new Swap()，sortablejs 官网也没有提供任何销毁的 api
     sortSwap: false
   }),
@@ -30,6 +35,12 @@ export const useAppStore = defineStore({
     },
     getDevice(state) {
       return state.device;
+    },
+    getViewportWidth(state) {
+      return state.viewportSize.width;
+    },
+    getViewportHeight(state) {
+      return state.viewportSize.height;
     }
   },
   actions: {
@@ -62,6 +73,9 @@ export const useAppStore = defineStore({
     setLayout(layout) {
       this.layout = layout;
     },
+    setViewportSize(size) {
+      this.viewportSize = size;
+    },
     setSortSwap(val) {
       this.sortSwap = val;
     }
diff --git a/src/store/modules/types.ts b/src/store/modules/types.ts
index 5192f5679..b8cb592e6 100644
--- a/src/store/modules/types.ts
+++ b/src/store/modules/types.ts
@@ -19,6 +19,7 @@ export type appType = {
   };
   layout: string;
   device: string;
+  viewportSize: { width: number; height: number };
   sortSwap: boolean;
 };