diff --git a/web/src/api/keys.ts b/web/src/api/keys.ts
index 85c5e79..03ac60d 100644
--- a/web/src/api/keys.ts
+++ b/web/src/api/keys.ts
@@ -2,7 +2,7 @@ import type {
   APIKey,
   Group,
   GroupConfigOption,
-  GroupStats,
+  GroupStatsResponse,
   KeyStatus,
   TaskInfo,
 } from "@/types/models";
@@ -33,16 +33,9 @@ export const keysApi = {
   },
 
   // 获取分组统计信息
-  async getGroupStats(): Promise<GroupStats> {
-    await new Promise(resolve => setTimeout(resolve, 200));
-    return {
-      total_keys: 0,
-      active_keys: 0,
-      requests_1h: 0,
-      requests_24h: 0,
-      requests_7d: 0,
-      failure_rate_24h: 0,
-    } as GroupStats;
+  async getGroupStats(groupId: number): Promise<GroupStatsResponse> {
+    const res = await http.get(`/groups/${groupId}/stats`);
+    return res.data;
   },
 
   // 获取分组可配置参数
diff --git a/web/src/components/keys/GroupInfoCard.vue b/web/src/components/keys/GroupInfoCard.vue
index 13eb1d1..a820b6a 100644
--- a/web/src/components/keys/GroupInfoCard.vue
+++ b/web/src/components/keys/GroupInfoCard.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { keysApi } from "@/api/keys";
-import type { Group, GroupStats } from "@/types/models";
+import type { Group, GroupStatsResponse } from "@/types/models";
 import { getGroupDisplayName } from "@/utils/display";
 import { Pencil, Trash } from "@vicons/ionicons5";
 import {
@@ -32,7 +32,7 @@ const props = defineProps<Props>();
 
 const emit = defineEmits<Emits>();
 
-const stats = ref<GroupStats | null>(null);
+const stats = ref<GroupStatsResponse | null>(null);
 const loading = ref(false);
 const dialog = useDialog();
 const showEditModal = ref(false);
@@ -60,7 +60,7 @@ async function loadStats() {
   try {
     loading.value = true;
     if (props.group?.id) {
-      stats.value = await keysApi.getGroupStats();
+      stats.value = await keysApi.getGroupStats(props.group.id);
     }
   } finally {
     loading.value = false;
@@ -118,7 +118,7 @@ function formatNumber(num: number): string {
 }
 
 function formatPercentage(num: number): string {
-  return `${num.toFixed(1)}%`;
+  return `${(num * 100).toFixed(1)}%`;
 }
 
 function copyUrl(url: string) {
@@ -177,38 +177,96 @@ function resetPage() {
       <!-- 统计摘要区 -->
       <div class="stats-summary">
         <n-spin :show="loading" size="small">
-          <n-grid :cols="5" :x-gap="12" :y-gap="12" responsive="screen">
+          <n-grid :cols="4" :x-gap="12" :y-gap="12" responsive="screen">
             <n-grid-item span="1">
-              <n-card
-                :title="`${stats?.active_keys || 0} / ${stats?.total_keys || 0}`"
-                size="large"
+              <n-statistic :label="`密钥数量：${stats?.key_stats?.total_keys ?? 0}`">
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="success" size="20">
+                      {{ stats?.key_stats?.active_keys ?? 0 }}
+                    </n-gradient-text>
+                  </template>
+                  有效密钥数
+                </n-tooltip>
+                <n-divider vertical />
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="error" size="20">
+                      {{ stats?.key_stats?.invalid_keys ?? 0 }}
+                    </n-gradient-text>
+                  </template>
+                  无效密钥数
+                </n-tooltip>
+              </n-statistic>
+            </n-grid-item>
+            <n-grid-item span="1">
+              <n-statistic
+                :label="`近1小时：${formatNumber(stats?.hourly_stats?.total_requests ?? 0)}`"
               >
-                <template #header-extra><span class="status-title">密钥数量</span></template>
-              </n-card>
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="success" size="20">
+                      {{ formatNumber(stats?.hourly_stats?.failed_requests ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近1小时失败请求
+                </n-tooltip>
+                <n-divider vertical />
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="error" size="20">
+                      {{ formatPercentage(stats?.hourly_stats?.failure_rate ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近1小时失败率
+                </n-tooltip>
+              </n-statistic>
             </n-grid-item>
             <n-grid-item span="1">
-              <n-card
-                class="status-card-failure"
-                :title="formatPercentage(stats?.failure_rate_24h || 0)"
-                size="large"
+              <n-statistic
+                :label="`近24小时：${formatNumber(stats?.daily_stats?.total_requests ?? 0)}`"
               >
-                <template #header-extra><span class="status-title">失败率</span></template>
-              </n-card>
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="success" size="20">
+                      {{ formatNumber(stats?.daily_stats?.failed_requests ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近24小时失败请求
+                </n-tooltip>
+                <n-divider vertical />
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="error" size="20">
+                      {{ formatPercentage(stats?.daily_stats?.failure_rate ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近24小时失败率
+                </n-tooltip>
+              </n-statistic>
             </n-grid-item>
             <n-grid-item span="1">
-              <n-card :title="formatNumber(stats?.requests_1h || 0)" size="large">
-                <template #header-extra><span class="status-title">近1小时</span></template>
-              </n-card>
-            </n-grid-item>
-            <n-grid-item span="1">
-              <n-card :title="formatNumber(stats?.requests_24h || 0)" size="large">
-                <template #header-extra><span class="status-title">近24小时</span></template>
-              </n-card>
-            </n-grid-item>
-            <n-grid-item span="1">
-              <n-card :title="formatNumber(stats?.requests_7d || 0)" size="large">
-                <template #header-extra><span class="status-title">近7天</span></template>
-              </n-card>
+              <n-statistic
+                :label="`近7天：${formatNumber(stats?.weekly_stats?.total_requests ?? 0)}`"
+              >
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="success" size="20">
+                      {{ formatNumber(stats?.weekly_stats?.failed_requests ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近7天失败请求
+                </n-tooltip>
+                <n-divider vertical />
+                <n-tooltip trigger="hover">
+                  <template #trigger>
+                    <n-gradient-text type="error" size="20">
+                      {{ formatPercentage(stats?.weekly_stats?.failure_rate ?? 0) }}
+                    </n-gradient-text>
+                  </template>
+                  近7天失败率
+                </n-tooltip>
+              </n-statistic>
             </n-grid-item>
           </n-grid>
         </n-spin>
diff --git a/web/src/types/models.ts b/web/src/types/models.ts
index 10f257e..59b59cd 100644
--- a/web/src/types/models.ts
+++ b/web/src/types/models.ts
@@ -53,13 +53,26 @@ export interface GroupConfigOption {
   default_value: number;
 }
 
-export interface GroupStats {
+// GroupStatsResponse defines the complete statistics for a group.
+export interface GroupStatsResponse {
+  key_stats: KeyStats;
+  hourly_stats: RequestStats;
+  daily_stats: RequestStats;
+  weekly_stats: RequestStats;
+}
+
+// KeyStats defines the statistics for API keys in a group.
+export interface KeyStats {
   total_keys: number;
   active_keys: number;
-  requests_1h: number;
-  requests_24h: number;
-  requests_7d: number;
-  failure_rate_24h: number;
+  invalid_keys: number;
+}
+
+// RequestStats defines the statistics for requests over a period.
+export interface RequestStats {
+  total_requests: number;
+  failed_requests: number;
+  failure_rate: number;
 }
 
 export interface TaskInfo {