diff --git a/src/App.vue b/src/App.vue
index b6d6dc7..02ba0ae 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -797,7 +797,7 @@
     v-model="showExportDrawer"
     title="导出文档"
     direction="rtl"
-    size="480px"
+    :size="exportDrawerSize"
     class="export-drawer"
   >
     <div class="export-module">
@@ -970,6 +970,7 @@ const currentApi = ref(null);
 const apiDetail = ref(null);
 const searchQuery = ref("");
 const isMobile = ref(false);
+const windowWidth = ref(typeof window !== "undefined" ? window.innerWidth : 800);
 const showMenu = ref(false);
 const currentPath = ref([]); // 当前路径，用于记录层级
 const currentPathKeys = ref([]); // 当前路径的key数组
@@ -990,6 +991,10 @@ const exportTreeProps = {
 
 const hostUrl = ref(import.meta.env.VITE_API_URL || "/api");
 const showExportDrawer = ref(false);
+const exportDrawerSize = computed(() => {
+  if (isMobile.value) return "100%";
+  return `${Math.min(800, windowWidth.value)}px`;
+});
 
 // 监听搜索，如果有搜索则自动返回根级别显示所有匹配结果
 watch(searchQuery, (newVal) => {
@@ -1228,7 +1233,8 @@ const goToApi = (api) => {
 };
 
 const checkDeviceType = () => {
-  isMobile.value = window.innerWidth <= 768;
+  windowWidth.value = window.innerWidth;
+  isMobile.value = windowWidth.value <= 768;
   showMenu.value = !isMobile.value;
 };