diff --git a/src/App.vue b/src/App.vue
index 08713ec..baf7621 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -6,7 +6,6 @@ import { useConfigStore } from "shared/store/config"
 import { useConfigUpdate } from "shared/composables/configUpdate"
 import { useMaxKB } from "shared/composables/maxkb"
 import { useUserStore } from "shared/store/user"
-import LoginSummaryModal from "shared/components/LoginSummaryModal.vue"
 
 const isDark = useDark()
 const configStore = useConfigStore()
@@ -61,7 +60,6 @@ provide("hljs", hljsInstance)
   >
     <n-message-provider>
       <router-view></router-view>
-      <LoginSummaryModal />
     </n-message-provider>
   </n-config-provider>
 </template>
diff --git a/src/shared/components/LoginSummaryModal.vue b/src/shared/components/LoginSummaryModal.vue
index 8c1a608..7c07947 100644
--- a/src/shared/components/LoginSummaryModal.vue
+++ b/src/shared/components/LoginSummaryModal.vue
@@ -8,14 +8,12 @@ import { parseTime } from "utils/functions"
 const loginSummaryStore = useLoginSummaryStore()
 const { isDesktop } = useBreakpoints()
 
-const rangeText = computed(() => {
+const lastLoginTime = computed(() => {
   const summary = loginSummaryStore.summary
-  if (!summary?.start || !summary?.end) {
+  if (!summary?.start) {
     return ""
   }
-  const start = parseTime(summary.start, "YYYY-MM-DD HH:mm")
-  const end = parseTime(summary.end, "YYYY-MM-DD HH:mm")
-  return `${start} - ${end}`
+  return parseTime(summary.start, "YYYY-MM-DD HH:mm")
 })
 
 const hasAnalysis = computed(() => !!loginSummaryStore.analysis)
@@ -31,7 +29,7 @@ const hasAnalysis = computed(() => !!loginSummaryStore.analysis)
   >
     <n-spin :show="loginSummaryStore.loading" size="small">
       <n-flex vertical size="large">
-        <n-text v-if="rangeText">统计区间：{{ rangeText }}</n-text>
+        <n-text v-if="lastLoginTime">上次登录时间：{{ lastLoginTime }}</n-text>
         <n-grid :cols="isDesktop ? 3 : 1" :x-gap="16" :y-gap="16">
           <n-gi>
             <n-statistic
@@ -79,7 +77,7 @@ const hasAnalysis = computed(() => !!loginSummaryStore.analysis)
         />
         <n-empty
           v-else
-          description="提交数少于 3 次，暂不生成 AI 分析"
+          description="期间提交数少于 3 次，暂不生成 AI 分析"
         />
       </n-flex>
     </n-spin>
diff --git a/src/shared/layout/default.vue b/src/shared/layout/default.vue
index 6319311..c314529 100644
--- a/src/shared/layout/default.vue
+++ b/src/shared/layout/default.vue
@@ -3,6 +3,7 @@ import Beian from "../components/Beian.vue"
 import Header from "../components/Header.vue"
 import Login from "../components/Login.vue"
 import Signup from "../components/Signup.vue"
+import LoginSummaryModal from "../components/LoginSummaryModal.vue"
 </script>
 
 <template>
@@ -17,6 +18,7 @@ import Signup from "../components/Signup.vue"
     </n-layout-content>
     <Login />
     <Signup />
+    <LoginSummaryModal />
     <Beian />
   </n-layout>
 </template>
diff --git a/src/shared/store/loginSummary.ts b/src/shared/store/loginSummary.ts
index e57d924..810168b 100644
--- a/src/shared/store/loginSummary.ts
+++ b/src/shared/store/loginSummary.ts
@@ -1,4 +1,6 @@
 import { getAILoginSummary } from "oj/api"
+import { STORAGE_KEY } from "utils/constants"
+import storage from "utils/storage"
 
 interface LoginSummary {
   start: string
@@ -17,6 +19,14 @@ export const useLoginSummaryStore = defineStore("loginSummary", () => {
   const analysis = ref("")
   const analysisError = ref("")
 
+  function getTodayKey() {
+    const now = new Date()
+    const year = now.getFullYear()
+    const month = String(now.getMonth() + 1).padStart(2, "0")
+    const day = String(now.getDate()).padStart(2, "0")
+    return `${year}-${month}-${day}`
+  }
+
   async function fetchSummary() {
     loading.value = true
     analysis.value = ""
@@ -34,6 +44,12 @@ export const useLoginSummaryStore = defineStore("loginSummary", () => {
   }
 
   async function open() {
+    const today = getTodayKey()
+    const lastShown = storage.get(STORAGE_KEY.LOGIN_SUMMARY_LAST_SHOWN)
+    if (lastShown === today) {
+      return
+    }
+    storage.set(STORAGE_KEY.LOGIN_SUMMARY_LAST_SHOWN, today)
     show.value = true
     await fetchSummary()
   }
diff --git a/src/utils/constants.ts b/src/utils/constants.ts
index eed74c1..cdeb2dc 100644
--- a/src/utils/constants.ts
+++ b/src/utils/constants.ts
@@ -130,6 +130,7 @@ export const STORAGE_KEY = {
   LEARN_CURRENT_STEP: "learnStep",
   ADMIN_PROBLEM: "adminProblem",
   ADMIN_PROBLEM_TAGS: "adminProblemTags",
+  LOGIN_SUMMARY_LAST_SHOWN: "login-summary-last-shown",
 }
 
 export const DIFFICULTY = {
@@ -205,8 +206,8 @@ const cTemplate = `//TEMPLATE BEGIN
 #include <stdio.h>
 
 int main() {
-  printf("黄岩一职");
-  return 0;
+    printf("黄岩一职");
+    return 0;
 }
 //TEMPLATE END`
 
@@ -214,7 +215,7 @@ const cppTemplate = `//TEMPLATE BEGIN
 #include <iostream>
 
 int main() {
-  return 0;
+    return 0;
 }
 //TEMPLATE END`