diff --git a/apps/web/src/oj/problem/components/EditorToolbar.vue b/apps/web/src/oj/problem/components/EditorToolbar.vue
index 1616e3e..9d44567 100644
--- a/apps/web/src/oj/problem/components/EditorToolbar.vue
+++ b/apps/web/src/oj/problem/components/EditorToolbar.vue
@@ -206,13 +206,13 @@ const changeLanguage = (v: LANGUAGE) => {
       运行例子
     </n-button>
 
-    <SubmitFlowchart v-if="codeStore.code.language === 'Flowchart'" />
+    <SubmitFlowchart v-if="codeStore.code.language === 'Flowchart' && isDesktop" />
 
     <SubmitCode v-else-if="isDesktop" />
 
     <div class="spacer" />
 
-    <FlowchartControls v-if="drawing && isDesktop" />
+    <FlowchartControls v-if="drawing" />
 
     <n-button
       v-if="showHelpButton"
diff --git a/apps/web/src/oj/problem/components/FlowchartControls.vue b/apps/web/src/oj/problem/components/FlowchartControls.vue
index ceca13f..dfb3107 100644
--- a/apps/web/src/oj/problem/components/FlowchartControls.vue
+++ b/apps/web/src/oj/problem/components/FlowchartControls.vue
@@ -2,6 +2,7 @@
 import { useThemeVars } from "naive-ui"
 import { storeToRefs } from "pinia"
 import { useFlowchartStore } from "oj/store/flowchart"
+import { useBreakpoints } from "shared/composables/breakpoints"
 import { parseTime } from "utils/functions"
 
 /**
@@ -11,6 +12,8 @@ import { parseTime } from "utils/functions"
  */
 const { editor, unchanged } = storeToRefs(useFlowchartStore())
 const theme = useThemeVars()
+// 手机上工具栏挤，「已保存」那几个字不放
+const { isDesktop } = useBreakpoints()
 
 const saved = computed(() => {
   // 「交给 AI 点评」灰着的时候说一句为什么（设计稿 FlowResPass）
@@ -22,7 +25,7 @@ const saved = computed(() => {
 
 <template>
   <div v-if="editor" class="flowchart-controls">
-    <span v-if="saved" class="saved">{{ saved }}</span>
+    <span v-if="saved && isDesktop" class="saved">{{ saved }}</span>
     <n-button
       :disabled="!editor.canUndo"
       aria-label="撤销"
diff --git a/apps/web/src/oj/problem/components/FlowchartResult.vue b/apps/web/src/oj/problem/components/FlowchartResult.vue
index 54e1ed0..41f164c 100644
--- a/apps/web/src/oj/problem/components/FlowchartResult.vue
+++ b/apps/web/src/oj/problem/components/FlowchartResult.vue
@@ -17,9 +17,7 @@ import { caseHeadline, caseReport } from "utils/flowchart"
  * 原来评分详情是提交按钮旁一个 1000px 的弹框：盖住画布，学生没法一边看改进建议一边改图；
  * 翻历次评分要一页一页点分页器。现在摆在左栏，画布整列都在右边（设计文档第 6 节）。
  *
- * viewOnly：手机上只能看、不能画（设计文档 5.6），不给「照着它写代码」「载回画布」。
  */
-const { viewOnly = false } = defineProps<{ viewOnly?: boolean }>()
 
 const MyFlowchart = defineAsyncComponent(() => import("./MyFlowchart.vue"))
 
@@ -154,7 +152,7 @@ watch(
 watch(
   () => [selectedCase.value, report.value, canvasSame.value, editor.value] as const,
   ([index, next, same, instance]) => {
-    if (!instance || viewOnly) return
+    if (!instance) return
     const row = index === null ? undefined : next?.cases[index]
     if (!row || !same || !versionDoc.value) {
       instance.setHighlight(null)
@@ -189,11 +187,7 @@ function goCode() {
     <n-empty
       v-else-if="!scores.length && phase !== 'evaluating'"
       class="empty"
-      :description="
-        viewOnly
-          ? '还没交过流程图。流程图要在电脑上画（手机上拖不动），交给 AI 点评之后，评分和建议在这里也看得到'
-          : '还没交过流程图。画好之后点「交给 AI 点评」，评分和建议会出现在这里'
-      "
+      description="还没交过流程图。画好之后点「交给 AI 点评」，评分和建议会出现在这里"
     />
 
     <!-- 历次分数连成一条：一眼看出是不是越改越好；正在评的那次是虚线框 -->
@@ -273,7 +267,7 @@ function goCode() {
       </template>
 
       <template v-if="detail">
-        <div v-if="detail.mermaidCode && (!report || canvasDiffers || viewOnly)" class="version">
+        <div v-if="detail.mermaidCode && (!report || canvasDiffers)" class="version">
           <div class="version-head">
             <span class="version-title">{{ versionTitle }}</span>
             <n-button text type="primary" size="small" @click="versionZoom = true">
@@ -327,7 +321,7 @@ function goCode() {
           </div>
         </div>
 
-        <div v-if="!viewOnly" class="actions">
+        <div class="actions">
           <n-button
             v-if="isFlowchartPass(current.grade) && canCode"
             type="primary"
diff --git a/apps/web/src/oj/problem/components/MobileActionBar.vue b/apps/web/src/oj/problem/components/MobileActionBar.vue
index f242504..66c08ce 100644
--- a/apps/web/src/oj/problem/components/MobileActionBar.vue
+++ b/apps/web/src/oj/problem/components/MobileActionBar.vue
@@ -6,6 +6,8 @@ import { useProblemStore } from "oj/store/problem"
 import { useSubmissionStore } from "oj/store/submission"
 import SubmitCode from "./SubmitCode.vue"
 
+const SubmitFlowchart = defineAsyncComponent(() => import("./SubmitFlowchart.vue"))
+
 /**
  * 手机上屏幕底部固定的「运行例子 / 提交」（设计文档 5.6）。原来这两个按钮在「代码」页签
  * 顶上，和语言、更多挤成两行；看着题面想交一次，还得先切回代码页签。
@@ -41,7 +43,8 @@ const canRunSamples = computed(
       运行例子
     </n-button>
     <div class="action">
-      <SubmitCode size="large" block />
+      <SubmitFlowchart v-if="codeStore.code.language === 'Flowchart'" size="large" block />
+      <SubmitCode v-else size="large" block />
     </div>
   </div>
 </template>
diff --git a/apps/web/src/oj/problem/components/ProblemEditor.vue b/apps/web/src/oj/problem/components/ProblemEditor.vue
index 29c2ea8..1616096 100644
--- a/apps/web/src/oj/problem/components/ProblemEditor.vue
+++ b/apps/web/src/oj/problem/components/ProblemEditor.vue
@@ -191,13 +191,12 @@ watch(
 )
 
 // 流程图编辑器交给 store：结果页签（在左栏，不在编辑器底下）要拿当前画布比一比、
-// 把旧版本载回去。子组件 SubmitFlowchart 还是从 inject 拿
+// 把旧版本载回去；「交给 AI 点评」在手机上挂在屏幕底部那条，也从 store 拿
 const flowchartStore = useFlowchartStore()
 watch(flowchartEditorRef, (editor) => flowchartStore.attachEditor(editor ?? null), {
   immediate: true,
 })
 onBeforeUnmount(() => flowchartStore.attachEditor(null))
-provide("flowchartEditorRef", flowchartEditorRef)
 </script>
 
 <template>
diff --git a/apps/web/src/oj/problem/components/ResultPane.vue b/apps/web/src/oj/problem/components/ResultPane.vue
index 6a060f7..5510d8f 100644
--- a/apps/web/src/oj/problem/components/ResultPane.vue
+++ b/apps/web/src/oj/problem/components/ResultPane.vue
@@ -5,8 +5,6 @@ import { useProblemStore } from "oj/store/problem"
 import { useSubmissionStore } from "oj/store/submission"
 import { useCodeStore } from "oj/store/code"
 import { useTeacherCollab } from "../composables/teacherCollab"
-import { useProblemPageContext } from "../composables/problemPageContext"
-import { useBreakpoints } from "shared/composables/breakpoints"
 import { useThemeVars } from "naive-ui"
 import { parseTime } from "utils/functions"
 import ResultHeader from "./ResultHeader.vue"
@@ -33,8 +31,6 @@ const { submission, syntaxErrorInfo, resultSegment, formattedBeforeSubmit } =
   storeToRefs(submissionStore)
 const { problem } = storeToRefs(useProblemStore())
 const codeStore = useCodeStore()
-const ctx = useProblemPageContext()
-const { isDesktop } = useBreakpoints()
 
 /** 协作中的老师自己还没交过：先摆学生最近一次交的 */
 const teacherCollab = useTeacherCollab()
@@ -42,24 +38,7 @@ const teacherCollab = useTeacherCollab()
 const theme = useThemeVars()
 const { samplesRunAt } = submissionStore.trial
 
-/**
- * 手机上流程图题只能看点评、不能画（设计文档 5.6）。画不了，语言也就落不到 Flowchart 上，
- * 下面的 drawing 永远是假 —— 原来学生在电脑上画过、AI 评过的，手机上一条都看不到。
- * 这时多给一段「流程图点评」，只读。
- */
-const flowchartReadable = computed(
-  () => !isDesktop.value && !!problem.value?.allowFlowchart && ctx.value.entry !== "contest",
-)
-/** 在看「流程图点评」那一段。只在这一页记着：点运行例子、提交时照常切回对应的分段 */
-const viewingFlowchart = ref(false)
-watch(
-  () => [submissionStore.resultSeq, problem.value?.id, flowchartReadable.value],
-  () => {
-    viewingFlowchart.value = false
-  },
-)
-
-type Segment = "submit" | "samples" | "custom" | "flowchart"
+type Segment = "submit" | "samples" | "custom"
 const codeSegments = computed<{ value: Segment; label: string; time: string }[]>(() => [
   {
     value: "submit",
@@ -84,25 +63,16 @@ const drawing = computed(() => codeStore.code.language === "Flowchart")
 // 试跑走判题机，SQL 题不走那里；流程图也没得跑。这两种只留「提交结果」
 const canTrial = computed(() => !problem.value || !isSqlProblem(problem.value))
 
-const segments = computed(() => {
-  const list = canTrial.value ? codeSegments.value : codeSegments.value.slice(0, 1)
-  return flowchartReadable.value
-    ? [...list, { value: "flowchart" as const, label: "流程图点评", time: "" }]
-    : list
-})
-/** 只有一段（SQL 题、又不是手机上的流程图题）就不摆分段了 */
+const segments = computed(() =>
+  canTrial.value ? codeSegments.value : codeSegments.value.slice(0, 1),
+)
+/** 只有一段（SQL 题）就不摆分段了 */
 const showSegments = computed(() => segments.value.length > 1)
 
 function isActive(segment: Segment) {
-  if (viewingFlowchart.value) return segment === "flowchart"
   return resultSegment.value === segment
 }
 function pick(segment: Segment) {
-  if (segment === "flowchart") {
-    viewingFlowchart.value = true
-    return
-  }
-  viewingFlowchart.value = false
   resultSegment.value = segment
 }
 </script>
@@ -124,14 +94,13 @@ function pick(segment: Segment) {
       >
         {{ segment.label }}<template v-if="segment.time"> · {{ segment.time }}</template>
       </button>
-      <span v-if="!viewingFlowchart && resultSegment === 'custom'" class="segment-note"
+      <span v-if="resultSegment === 'custom'" class="segment-note"
         >自己编数据试试，这里不判对错</span
       >
     </div>
 
-    <FlowchartResult v-if="viewingFlowchart && flowchartReadable" view-only />
     <!-- 提交结果用 v-show：切去看运行例子时不卸载，挂着的错误说明在编辑器里标着红 -->
-    <div v-show="!viewingFlowchart && (resultSegment === 'submit' || !canTrial)">
+    <div v-show="resultSegment === 'submit' || !canTrial">
       <template v-if="syntaxErrorInfo">
         <ResultHeader kind="warning" title="代码有语法错误，还没有交上去" />
         <CompileErrorExplain :err-info="syntaxErrorInfo" />
@@ -149,7 +118,7 @@ function pick(segment: Segment) {
         description="还没有提交过。写完代码按「提交」，结果会出现在这里"
       />
     </div>
-    <template v-if="canTrial && !viewingFlowchart">
+    <template v-if="canTrial">
       <SampleRunResult v-if="resultSegment === 'samples'" />
       <CustomRun v-else-if="resultSegment === 'custom'" />
     </template>
diff --git a/apps/web/src/oj/problem/components/SubmitFlowchart.vue b/apps/web/src/oj/problem/components/SubmitFlowchart.vue
index 6200d93..f588aa6 100644
--- a/apps/web/src/oj/problem/components/SubmitFlowchart.vue
+++ b/apps/web/src/oj/problem/components/SubmitFlowchart.vue
@@ -3,7 +3,7 @@ import { storeToRefs } from "pinia"
 import { useBreakpoints } from "shared/composables/breakpoints"
 import { countBlank } from "shared/components/FlowchartEditor/model"
 import { useProblemStore } from "oj/store/problem"
-import { useFlowchartStore, type FlowchartEditorInstance } from "oj/store/flowchart"
+import { useFlowchartStore } from "oj/store/flowchart"
 
 /**
  * 「交给 AI 点评」按钮。
@@ -13,16 +13,20 @@ import { useFlowchartStore, type FlowchartEditorInstance } from "oj/store/flowch
  * 弹框盖住画布，学生没法一边看改进建议一边改图。
  */
 
-const flowchartEditorRef = inject<Ref<FlowchartEditorInstance | null>>("flowchartEditorRef")
+/** 手机上它在屏幕底部那条（MobileActionBar），不在编辑器里面，所以画布从 store 拿 */
+const { size, block = false } = defineProps<{
+  size?: "small" | "medium" | "large"
+  block?: boolean
+}>()
 
 const message = useMessage()
 const { problem } = storeToRefs(useProblemStore())
 const flowchartStore = useFlowchartStore()
-const { loading, unchanged } = storeToRefs(flowchartStore)
+const { loading, unchanged, editor: canvas } = storeToRefs(flowchartStore)
 const { isDesktop } = useBreakpoints()
 
 function submit() {
-  const editor = flowchartEditorRef?.value
+  const editor = canvas.value
   if (!editor) return
   const doc = editor.getDoc()
   if (!doc.steps.length) {
@@ -44,7 +48,8 @@ watch(() => problem.value?.id, flowchartStore.ensureLoaded, { immediate: true })
 
 <template>
   <n-button
-    :size="isDesktop ? 'medium' : 'small'"
+    :size="size ?? (isDesktop ? 'medium' : 'small')"
+    :block="block"
     type="primary"
     :loading="loading"
     :disabled="loading || unchanged"
diff --git a/apps/web/src/oj/store/problem.ts b/apps/web/src/oj/store/problem.ts
index 2a6c831..d2640b4 100644
--- a/apps/web/src/oj/store/problem.ts
+++ b/apps/web/src/oj/store/problem.ts
@@ -1,5 +1,4 @@
 import { defineStore } from "pinia"
-import { useBreakpoints } from "shared/composables/breakpoints"
 import type { LANGUAGE, ProblemDetail } from "utils/types"
 import { problemEntryOf } from "oj/problem/composables/problemPageContext"
 import { useCodeStore } from "oj/store/code"
@@ -28,14 +27,13 @@ export const useProblemStore = defineStore("problem", () => {
    */
   const failCount = computed(() => (problem.value?.myFailedCount ?? 0) + sessionFailCount.value)
 
-  const { isDesktop } = useBreakpoints()
-
   /**
    * 这道题能不能画流程图。比赛里不给（入口差异表）；题单里原来也不给，现在给了，画到 A/S
-   * 算完成（设计文档第 3 节决定 4）。手机上不给：节点库是 HTML5 拖放，手机上拖不动。
+   * 算完成（设计文档第 3 节决定 4）。手机上原来不给（节点库是 HTML5 拖放，拖不动），
+   * 2026-10 换成插入式编辑器之后只用点，手机上也能画
    */
   const canDraw = computed(
-    () => !!problem.value?.allowFlowchart && problemEntryOf(route) !== "contest" && isDesktop.value,
+    () => !!problem.value?.allowFlowchart && problemEntryOf(route) !== "contest",
   )
 
   /**