diff --git a/src/admin/problem/components/AstRulesEditor.vue b/src/admin/problem/components/AstRulesEditor.vue
index 01816e8..0277304 100644
--- a/src/admin/problem/components/AstRulesEditor.vue
+++ b/src/admin/problem/components/AstRulesEditor.vue
@@ -164,12 +164,12 @@ watch(() => props.languages, (langs) => {
         <n-tab-pane v-for="lang in languages" :key="lang" :name="lang" :tab="lang">
           <n-flex vertical>
             <div v-for="(rule, index) in getRulesForLang(lang)" :key="index" style="margin-bottom: 8px">
-              <n-flex align="center" :wrap="true">
+              <n-flex align="center" :wrap="false">
                 <n-select
                   :options="ENGINE_OPTIONS"
                   :value="rule.engine"
                   @update:value="(v: string) => updateRule(lang, index, 'engine', v)"
-                  style="width: 160px"
+                  style="width: 150px"
                   size="small"
                 />
                 <n-select
@@ -177,7 +177,7 @@ watch(() => props.languages, (langs) => {
                   :options="NODE_TARGET_OPTIONS"
                   :value="rule.target"
                   @update:value="(v: string) => updateRule(lang, index, 'target', v)"
-                  style="width: 140px"
+                  style="width: 150px"
                   size="small"
                   filterable
                 />
@@ -186,7 +186,7 @@ watch(() => props.languages, (langs) => {
                   :value="rule.target"
                   @update:value="(v: string) => updateRule(lang, index, 'target', v)"
                   placeholder="函数/方法名"
-                  style="width: 120px"
+                  style="width: 150px"
                   size="small"
                 />
                 <n-select
@@ -194,7 +194,7 @@ watch(() => props.languages, (langs) => {
                   :options="OPERATOR_TARGET_OPTIONS"
                   :value="rule.target"
                   @update:value="(v: string) => updateRule(lang, index, 'target', v)"
-                  style="width: 100px"
+                  style="width: 150px"
                   size="small"
                 />
                 <n-input-number
@@ -202,7 +202,7 @@ watch(() => props.languages, (langs) => {
                   :value="rule.min ?? null"
                   @update:value="(v: number | null) => updateRule(lang, index, 'min', v)"
                   placeholder="最少"
-                  style="width: 90px"
+                  style="width: 150px"
                   size="small"
                   :min="0"
                   clearable
@@ -212,7 +212,7 @@ watch(() => props.languages, (langs) => {
                   :value="rule.max ?? null"
                   @update:value="(v: number | null) => updateRule(lang, index, 'max', v)"
                   placeholder="最多"
-                  style="width: 90px"
+                  style="width: 150px"
                   size="small"
                   :min="0"
                   clearable
@@ -221,7 +221,7 @@ watch(() => props.languages, (langs) => {
                   :value="rule.message"
                   @update:value="(v: string) => updateRule(lang, index, 'message', v)"
                   placeholder="错误提示（选填）"
-                  style="width: 200px"
+                  style="flex: 1"
                   size="small"
                 />
                 <n-button size="small" tertiary type="error" @click="removeRule(lang, index)">
diff --git a/src/admin/problem/detail.vue b/src/admin/problem/detail.vue
index 670da84..282dc56 100644
--- a/src/admin/problem/detail.vue
+++ b/src/admin/problem/detail.vue
@@ -646,10 +646,14 @@ watch(
     </n-gi>
   </n-grid>
 
-  <AstRulesEditor
-    v-model="problem.ast_rules"
-    :languages="problem.languages"
-  />
+  <n-grid :cols="2">
+    <n-gi :span="1">
+      <AstRulesEditor
+        v-model="problem.ast_rules!"
+        :languages="problem.languages"
+      />
+    </n-gi>
+  </n-grid>
 
   <n-divider />
 
diff --git a/src/oj/problem/components/ProblemContent.vue b/src/oj/problem/components/ProblemContent.vue
index 728dcae..0302fce 100644
--- a/src/oj/problem/components/ProblemContent.vue
+++ b/src/oj/problem/components/ProblemContent.vue
@@ -6,7 +6,7 @@ import { useCodeStore } from "oj/store/code"
 import { useProblemStore } from "oj/store/problem"
 import { createTestSubmission } from "utils/judge"
 import { DIFFICULTY } from "utils/constants"
-import { Problem, ProblemStatus } from "utils/types"
+import type { Problem, ProblemStatus } from "utils/types"
 import Copy from "shared/components/Copy.vue"
 import { useDark } from "@vueuse/core"
 import { MdPreview } from "md-editor-v3"
@@ -85,6 +85,60 @@ const samples = ref<Sample[]>(
   })),
 )
 
+const NODE_TARGET_LABELS: Record<string, string> = {
+  for_loop: "for 循环",
+  while_loop: "while 循环",
+  if_statement: "if 条件",
+  else_clause: "else 子句",
+  function_definition: "函数定义",
+  return: "return 语句",
+  break: "break 语句",
+  continue: "continue 语句",
+  list_comprehension: "列表推导式",
+  list_literal: "列表",
+  dict_literal: "字典",
+  set_literal: "集合",
+  f_string: "f-string",
+  try_except: "try-except",
+  class_definition: "类定义",
+}
+
+type AstRule = { engine: string; target?: string; min?: number; max?: number; message: string }
+
+function ruleDescription(rule: AstRule): string {
+  const target = rule.target || ""
+  const targetLabel = NODE_TARGET_LABELS[target] || target
+  const range = (min?: number, max?: number) => {
+    if (min !== undefined && max !== undefined) return `${min}～${max} 次`
+    if (min !== undefined) return `至少 ${min} 次`
+    if (max !== undefined) return `至多 ${max} 次`
+    return ""
+  }
+  switch (rule.engine) {
+    case "must_exist_node": return `必须使用 ${targetLabel}`
+    case "must_not_exist_node": return `不能使用 ${targetLabel}`
+    case "count_node": return `${targetLabel} 出现次数 ${range(rule.min, rule.max)}`
+    case "must_call_function": return `必须调用函数 ${target}`
+    case "must_not_call_function": return `不能调用函数 ${target}`
+    case "count_function_call": return `函数 ${target} 调用次数 ${range(rule.min, rule.max)}`
+    case "must_call_method": return `必须调用方法 ${target}`
+    case "must_not_call_method": return `不能调用方法 ${target}`
+    case "must_use_operator": return `必须使用运算符 ${target}`
+    default: return rule.message || rule.engine
+  }
+}
+
+function ruleTagType(engine: string): "error" | "success" | "info" {
+  if (engine.startsWith("must_not")) return "error"
+  if (engine.startsWith("must")) return "success"
+  return "info"
+}
+
+const astRulesForDisplay = computed(() => {
+  if (!problem.value?.ast_rules) return []
+  return Object.entries(problem.value.ast_rules).filter(([, rules]) => rules.length > 0)
+})
+
 async function test(sample: Sample, index: number) {
   samples.value = samples.value.map((sample) => {
     if (sample.id === index) {
@@ -222,6 +276,29 @@ function type(status: ProblemStatus) {
       />
     </div>
 
+    <!-- 代码要求（AST 规则） -->
+    <div v-if="astRulesForDisplay.length > 0">
+      <p class="title" :style="style">
+        <n-flex align="center">
+          <Icon icon="streamline-emojis:open-book"></Icon>
+          要求
+        </n-flex>
+      </p>
+      <div v-for="[lang, rules] in astRulesForDisplay" :key="lang">
+        <p v-if="astRulesForDisplay.length > 1" class="lang-label">{{ lang }}</p>
+        <n-list bordered style="margin-bottom: 8px">
+          <n-list-item v-for="(rule, i) in rules" :key="i">
+            <n-flex align="center">
+              <n-tag size="small" :type="ruleTagType(rule.engine)">
+                {{ ruleDescription(rule) }}
+              </n-tag>
+              <span v-if="rule.message" class="rule-message">{{ rule.message }}</span>
+            </n-flex>
+          </n-list-item>
+        </n-list>
+      </div>
+    </div>
+
     <div v-for="(sample, index) of samples" :key="index">
       <n-flex align="center">
         <p class="title" :style="style">例子 {{ index + 1 }}</p>
@@ -338,4 +415,14 @@ function type(status: ProblemStatus) {
 .status-alert {
   margin-bottom: 16px;
 }
+
+.lang-label {
+  font-weight: 600;
+  margin: 8px 0 4px;
+}
+
+.rule-message {
+  font-size: 13px;
+  opacity: 0.65;
+}
 </style>