diff --git a/spx-gui/src/apps/xbuilder/pages/editor/index.vue b/spx-gui/src/apps/xbuilder/pages/editor/index.vue
index e683866cb..f0a9973c3 100644
--- a/spx-gui/src/apps/xbuilder/pages/editor/index.vue
+++ b/spx-gui/src/apps/xbuilder/pages/editor/index.vue
@@ -59,6 +59,7 @@ import ProjectEditor from '@/components/editor/ProjectEditor.vue'
 import { CodeEditorProvider, loadMonaco } from '@/components/editor/spx-code-editor'
 import { usePublishProject } from '@/components/project'
 import { EditingMode, type ILocalCache } from '@/components/editor/editing'
+import { editorLeaveConfirm } from '@/components/editor/leave-confirm'
 import { EditorState } from '@/components/editor/editor-state'
 import { cloudHelpers } from '@/models/common/cloud'
 import { localHelpers, type LocalHelpers } from '@/models/common/local'
@@ -213,6 +214,7 @@ onBeforeRouteLeave(async () => {
  * If it is OK to leave, return true, otherwise return false.
  */
 async function checkChangesNotToBeSaved(es: EditorState) {
+  if (editorLeaveConfirm.consumeSkipOnce()) return true
   const hasEdits = es.editing.mode === EditingMode.EffectFree && es.editing.dirty
   if (!hasEdits) return true
   return confirm({
@@ -220,10 +222,12 @@ async function checkChangesNotToBeSaved(es: EditorState) {
       en: 'Leave editor',
       zh: '离开编辑器'
     }),
-    content: t({
-      en: `Project edits will not be saved if you leave now. Are you sure to leave?`,
-      zh: `若现在离开，对项目的修改将不会被保存。确定要离开吗？`
-    }),
+    content: t(
+      editorLeaveConfirm.messageOverride ?? {
+        en: `Project edits will not be saved if you leave now. Are you sure to leave?`,
+        zh: `若现在离开，对项目的修改将不会被保存。确定要离开吗？`
+      }
+    ),
     cancelText: t({
       en: 'Keep editing',
       zh: '继续编辑'
diff --git a/spx-gui/src/components/editor/leave-confirm.ts b/spx-gui/src/components/editor/leave-confirm.ts
new file mode 100644
index 000000000..c33ecf917
--- /dev/null
+++ b/spx-gui/src/components/editor/leave-confirm.ts
@@ -0,0 +1,47 @@
+import { shallowRef } from 'vue'
+
+import type { LocaleMessage } from '@/utils/i18n'
+
+// Max age (ms) for a skip request to still suppress the leave confirmation. Time-bound so a
+// request that is never consumed cannot get "stuck": some navigations (e.g. editor -> editor
+// route updates, or starting a course from a non-editor page) never reach the editor's
+// `onBeforeRouteLeave`, and an un-expiring request would otherwise suppress a later, genuine
+// leave confirmation.
+const skipConfirmTimeout = 1000
+
+/**
+ * Controls the editor's "leave editor" confirmation.
+ *
+ * This is an editor-owned extension point: other features (e.g. tutorials) can drive the
+ * editor's leave behavior without the editor depending on them. The editor only exposes
+ * generic capabilities here and stays ignorant of who is driving it.
+ *
+ * - `messageOverride`: replace the confirmation message (e.g. tutorial-specific copy).
+ * - `requestSkipOnce` / `consumeSkipOnce`: skip the confirmation for a single, expected
+ *   navigation (e.g. starting a course, or returning to the course series).
+ */
+class EditorLeaveConfirm {
+  private messageOverrideRef = shallowRef<LocaleMessage | null>(null)
+
+  get messageOverride(): LocaleMessage | null {
+    return this.messageOverrideRef.value
+  }
+  setMessageOverride(message: LocaleMessage | null) {
+    this.messageOverrideRef.value = message
+  }
+
+  private skipRequestedAt = 0
+  requestSkipOnce() {
+    this.skipRequestedAt = Date.now()
+  }
+  consumeSkipOnce() {
+    const skip = Date.now() - this.skipRequestedAt < skipConfirmTimeout
+    this.skipRequestedAt = 0
+    return skip
+  }
+}
+
+// App-level single instance: there is only ever one editor leave confirmation in play, and
+// the drivers (tutorial, success modal) live outside the editor component tree, so they reach
+// it by import rather than provide/inject.
+export const editorLeaveConfirm = new EditorLeaveConfirm()
diff --git a/spx-gui/src/components/tutorials/TutorialCourseSuccessModal.vue b/spx-gui/src/components/tutorials/TutorialCourseSuccessModal.vue
index 4894b1177..58accbe80 100644
--- a/spx-gui/src/components/tutorials/TutorialCourseSuccessModal.vue
+++ b/spx-gui/src/components/tutorials/TutorialCourseSuccessModal.vue
@@ -8,6 +8,7 @@ import type { CourseSeries } from '@/apis/course-series'
 import { useI18n } from '@/utils/i18n'
 
 import { UIButton, UIImg, UIModal, UIModalClose } from '@/components/ui'
+import { editorLeaveConfirm } from '@/components/editor/leave-confirm'
 import { DefaultException, useMessageHandle } from '@/utils/exception'
 import successImg from './success.png'
 
@@ -37,10 +38,19 @@ function handleCancel() {
   emit('cancelled')
 }
 
-function handleBrowseTutorials() {
-  emit('cancelled')
-  router.push('/tutorials')
-}
+const { fn: handleBackToCourseSeries } = useMessageHandle(
+  async () => {
+    // Request the skip before anything else so the time-bound window isn't shortened
+    // by work in the `cancelled` handler.
+    editorLeaveConfirm.requestSkipOnce()
+    emit('cancelled')
+    await router.push(`/course-series/${props.series.id}`)
+  },
+  {
+    en: 'Failed to go back to course series',
+    zh: '返回系列课程失败'
+  }
+)
 
 const hasNextCourse = computed(() => {
   const currentCourse = props.course
@@ -96,8 +106,8 @@ const { fn: handleStartNextCourse } = useMessageHandle(
         <div class="mt-2 text-base">{{ courseCompleteMessage }}</div>
 
         <div class="mt-10 w-full flex flex-col gap-5">
-          <UIButton type="neutral" size="large" @click="handleBrowseTutorials">
-            {{ $t({ zh: '浏览所有课程', en: 'Browse all courses' }) }}
+          <UIButton type="neutral" size="large" @click="handleBackToCourseSeries">
+            {{ $t({ zh: '返回系列课程', en: 'Back to series courses' }) }}
           </UIButton>
           <UIButton v-if="hasNextCourse" size="large" @click="handleStartNextCourse">
             {{ $t({ zh: '学习下一个课程', en: 'Learn next course' }) }}
diff --git a/spx-gui/src/components/tutorials/TutorialRoot.vue b/spx-gui/src/components/tutorials/TutorialRoot.vue
index 1f3938730..892fb3e55 100644
--- a/spx-gui/src/components/tutorials/TutorialRoot.vue
+++ b/spx-gui/src/components/tutorials/TutorialRoot.vue
@@ -7,6 +7,7 @@ import { useIsRouteLoaded } from '@/utils/route-loading'
 import { isTutorialTopic, provideTutorial, Tutorial } from './tutorial'
 
 import { useCopilot } from '@/components/copilot/context'
+import { editorLeaveConfirm } from '@/components/editor/leave-confirm'
 import * as tutorialCourseSuccess from './TutorialCourseSuccess.vue'
 import * as tutorialCourseExitLink from './TutorialCourseExitLink'
 import * as tutorialStateIndicator from './TutorialStateIndicator.vue'
@@ -27,7 +28,15 @@ watch(
   (currentCourse, _, onCleanup) => {
     if (currentCourse == null) return
 
+    // Drive the editor's leave confirmation with tutorial-specific copy while a course is
+    // active; the editor exposes the override and stays unaware of tutorials.
+    editorLeaveConfirm.setMessageOverride({
+      en: 'Tutorial edits will not be saved if you leave now. Are you sure to leave?',
+      zh: '教程中的修改不会被保存，确认要离开吗？'
+    })
+
     const disposers = [
+      () => editorLeaveConfirm.setMessageOverride(null),
       copilot.registerCustomElement({
         tagName: tutorialCourseSuccess.tagName,
         description: tutorialCourseSuccess.detailedDescription,
diff --git a/spx-gui/src/components/tutorials/tutorial.ts b/spx-gui/src/components/tutorials/tutorial.ts
index 6b7cc129f..86a3f8dad 100644
--- a/spx-gui/src/components/tutorials/tutorial.ts
+++ b/spx-gui/src/components/tutorials/tutorial.ts
@@ -6,6 +6,7 @@ import { timeout, until } from '@/utils/utils'
 import { userSessionStorageRef } from '@/utils/user-storage'
 import type { Copilot, Topic } from '@/components/copilot/copilot'
 import { tagName as highlightLinkTagName } from '@/components/copilot/markdown-elements/HighlightLink.vue'
+import { editorLeaveConfirm } from '@/components/editor/leave-confirm'
 import type { Course } from '@/apis/course'
 import type { CourseSeries } from '@/apis/course-series'
 
@@ -71,6 +72,10 @@ export class Tutorial {
       const { entrypoint } = course
 
       if (entrypoint) {
+        // A course entrypoint may point to a non-editor route. Navigating away from the
+        // editor would otherwise trigger its leave confirmation, but starting a course is
+        // an explicit, expected action, so skip the confirmation for this navigation.
+        editorLeaveConfirm.requestSkipOnce()
         await this.router.push(entrypoint)
         await until(this.isRouteLoaded)
         await timeout(100) // Wait for detailed UI rendering