diff --git a/frontend/src/views/accounts/components/AccountQuotaPanel/index.vue b/frontend/src/views/accounts/components/AccountQuotaPanel/index.vue
index cfc831639..cb21a1f7a 100644
--- a/frontend/src/views/accounts/components/AccountQuotaPanel/index.vue
+++ b/frontend/src/views/accounts/components/AccountQuotaPanel/index.vue
@@ -77,7 +77,7 @@ const profileOpen = shallowRef(false)
       </div>
     </div>
 
-    <div class="grid max-h-44 min-h-0 gap-3 overflow-y-auto pr-1">
+    <div class="grid min-h-0 gap-3">
       <AccountQuotaPanelEntry
         v-for="entry in quotaEntries"
         :key="entry.key"
diff --git a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/Entry.vue b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/Entry.vue
index 5b23c39d7..628ce1a4f 100644
--- a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/Entry.vue
+++ b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/Entry.vue
@@ -10,15 +10,19 @@ import AccountUsageWindow from '../AccountUsageWindow/index.vue'
 import { resolveAccountUsageWindowPresentation } from '../AccountUsageWindow/presenter'
 import AccountQuotaWindowGroup from './WindowGroup.vue'
 
-const props = defineProps<{
+const props = withDefaults(defineProps<{
   label: string | null
   windows: AccountQuotaWindow[]
-}>()
+  showPercentage?: boolean
+}>(), {
+  showPercentage: true,
+})
 
 const now = useUiClock()
-const grouped = computed(() => props.windows.length > 1 && Boolean(props.label))
 const detailHeading = computed(() => props.label)
 const detailTitle = computed(() => detailHeading.value ?? props.windows[0]?.labelDisplay ?? '额度详情')
+const summaryLabel = computed(() => props.label ?? props.windows[0]?.labelDisplay ?? '额度')
+const hasQuotaWindow = computed(() => props.windows.some(window => typeof window.usedPercent === 'number'))
 const detailItems = computed(() =>
   props.windows.map((window) => {
     const view = resolveAccountUsageWindowPresentation({
@@ -82,7 +86,12 @@ function quotaWindowCode(windowSeconds: number | null, role: AccountQuotaWindow[
         :aria-expanded="open"
         aria-haspopup="dialog"
       >
-        <AccountQuotaWindowGroup v-if="grouped && label" :label="label" :windows="windows" />
+        <AccountQuotaWindowGroup
+          v-if="hasQuotaWindow"
+          :label="summaryLabel"
+          :windows="windows"
+          :show-percentage="showPercentage"
+        />
         <AccountUsageWindow
           v-else
           :window="windows[0]"
diff --git a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/WindowGroup.vue b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/WindowGroup.vue
index 9a7b5c41f..7558d2d3e 100644
--- a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/WindowGroup.vue
+++ b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/WindowGroup.vue
@@ -4,10 +4,13 @@ import type { AccountQuotaWindow } from '../../constants'
 import { computed } from 'vue'
 import { quotaWindowPresentation } from '../AccountUsageWindow/presenter'
 
-const props = defineProps<{
+const props = withDefaults(defineProps<{
   label: string
   windows: AccountQuotaWindow[]
-}>()
+  showPercentage?: boolean
+}>(), {
+  showPercentage: true,
+})
 
 const windowItems = computed(() => props.windows.map(window => ({
   key: window.key,
@@ -16,6 +19,17 @@ const windowItems = computed(() => props.windows.map(window => ({
   usedPercentDisplay: window.usedPercentDisplay,
   presentation: quotaWindowPresentation(window, '2px'),
 })))
+const highestUsageWindow = computed(() => props.windows.reduce((highest, window) => {
+  if (typeof window.usedPercent !== 'number')
+    return highest
+  if (!highest || typeof highest.usedPercent !== 'number' || window.usedPercent > highest.usedPercent)
+    return window
+  return highest
+}, undefined as AccountQuotaWindow | undefined))
+const highestUsageDisplay = computed(() => highestUsageWindow.value?.usedPercentDisplay ?? '—')
+const highestUsageTextClass = computed(() => highestUsageWindow.value
+  ? quotaWindowPresentation(highestUsageWindow.value, '2px').percentTextClass
+  : 'text-cp-text-quaternary')
 
 const trackGridStyle = computed(() => ({
   gridTemplateColumns: `repeat(${Math.max(windowItems.value.length, 1)}, minmax(0, 1fr))`,
@@ -23,16 +37,25 @@ const trackGridStyle = computed(() => ({
 </script>
 
 <template>
-  <div class="flex min-w-0 flex-col">
-    <div class="mb-1 min-w-0 truncate text-cp-xs leading-3.5 font-bold text-cp-text-quaternary">
-      {{ label }}
+  <div class="grid min-w-0 gap-1.5">
+    <div class="flex min-w-0 items-baseline justify-between gap-1 text-[10px] leading-3 font-bold">
+      <span class="min-w-0 truncate text-cp-text-quaternary" :title="label">
+        {{ label }}
+      </span>
+      <strong
+        v-if="showPercentage"
+        class="shrink-0 font-mono font-heavy tabular-nums"
+        :class="highestUsageTextClass"
+      >
+        {{ highestUsageDisplay }}
+      </strong>
     </div>
 
     <div class="grid min-w-0 gap-1" :style="trackGridStyle">
       <div
         v-for="item in windowItems"
         :key="item.key"
-        class="h-0.75 w-full overflow-hidden rounded-full bg-cp-border-secondary"
+        class="h-1 w-full overflow-hidden rounded-full bg-cp-border-secondary"
         role="progressbar"
         :aria-label="item.labelTooltip"
         aria-valuemin="0"
@@ -41,7 +64,7 @@ const trackGridStyle = computed(() => ({
         :aria-valuetext="item.usedPercentDisplay"
       >
         <div
-          class="h-full rounded-full transition-[width,background-color] duration-200"
+          class="h-full rounded-full transition-[width,background-color] duration-200 motion-reduce:transition-none"
           :class="item.presentation.barClass"
           :style="item.presentation.barStyle"
         />
diff --git a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/index.vue b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/index.vue
index 6898faf05..beb67419d 100644
--- a/frontend/src/views/accounts/components/AccountQuotaSummaryCell/index.vue
+++ b/frontend/src/views/accounts/components/AccountQuotaSummaryCell/index.vue
@@ -4,6 +4,7 @@ import type { AccountRow } from '../../constants'
 import { computed } from 'vue'
 import { groupedAccountQuotaWindows, visibleSummaryQuotaWindows } from '../../constants'
 import AccountUsageWindow from '../AccountUsageWindow/index.vue'
+import { quotaWindowPresentation } from '../AccountUsageWindow/presenter'
 import AccountQuotaSummaryEntry from './Entry.vue'
 
 const props = defineProps<{
@@ -13,24 +14,76 @@ const props = defineProps<{
 const quotaWindows = computed(() => props.account.quota.windows)
 const visibleQuotaWindows = computed(() => visibleSummaryQuotaWindows(quotaWindows.value))
 const summaryEntries = computed(() => groupedAccountQuotaWindows(visibleQuotaWindows.value))
-const summaryClass = computed(
-  () =>
-    `box-border grid w-full min-w-0 gap-1 py-1.5 ${
-      summaryEntries.value.length <= 1
-        ? 'min-h-13 content-center'
-        : 'min-h-16.5 content-center'
-    }`,
-)
+const hasUsage = computed(() => (props.account.usage.requestCount ?? 0) > 0)
+const highestUsageWindow = computed(() => visibleQuotaWindows.value.reduce((highest, window) => {
+  if (typeof window.usedPercent !== 'number')
+    return highest
+  if (!highest || typeof highest.usedPercent !== 'number' || window.usedPercent > highest.usedPercent)
+    return window
+  return highest
+}, undefined as (typeof visibleQuotaWindows.value)[number] | undefined))
+const highestUsageDisplay = computed(() => highestUsageWindow.value?.usedPercentDisplay ?? '—')
+const highestUsageTextClass = computed(() => highestUsageWindow.value
+  ? quotaWindowPresentation(highestUsageWindow.value, '2px').percentTextClass
+  : 'text-cp-text-quaternary')
+const highestUsageEntry = computed(() => {
+  const highestWindow = highestUsageWindow.value
+  if (!highestWindow)
+    return summaryEntries.value[0]
+
+  return summaryEntries.value.find(entry =>
+    entry.windows.some(window => window.key === highestWindow.key),
+  ) ?? summaryEntries.value[0]
+})
+const additionalEntryCount = computed(() => Math.max(summaryEntries.value.length - 1, 0))
 </script>
 
 <template>
-  <div :class="summaryClass">
-    <AccountQuotaSummaryEntry
-      v-for="entry in summaryEntries"
-      :key="entry.key"
-      :label="entry.label"
-      :windows="entry.windows"
-    />
-    <AccountUsageWindow v-if="summaryEntries.length === 0" variant="compact" />
+  <div class="box-border grid min-h-16.5 w-full min-w-0 content-center gap-1.5 py-1.5">
+    <template v-if="summaryEntries.length > 0">
+      <div
+        v-if="hasUsage"
+        class="flex min-w-0 items-baseline justify-between gap-2 leading-none"
+      >
+        <span
+          class="flex min-w-0 items-baseline gap-1 font-mono tabular-nums"
+          title="当前额度窗口总 Token"
+        >
+          <strong class="truncate text-cp-xs font-heavy text-cp-text">
+            {{ account.usage.totalTokensDisplay }}
+          </strong>
+          <span class="shrink-0 text-[9px] font-emphasis tracking-[0.02em] text-cp-text-quaternary">
+            Tokens
+          </span>
+        </span>
+        <span
+          class="flex shrink-0 items-baseline gap-1 text-[9px] font-emphasis text-cp-text-quaternary"
+          title="所有额度窗口中的最高已用比例"
+        >
+          <span>最高占用</span>
+          <strong class="font-mono font-heavy tabular-nums" :class="highestUsageTextClass">
+            {{ highestUsageDisplay }}
+          </strong>
+        </span>
+      </div>
+
+      <div v-if="highestUsageEntry" class="flex min-w-0 items-end gap-2">
+        <div class="min-w-0 flex-1">
+          <AccountQuotaSummaryEntry
+            :label="highestUsageEntry.label"
+            :windows="highestUsageEntry.windows"
+            :show-percentage="false"
+          />
+        </div>
+        <span
+          v-if="additionalEntryCount > 0"
+          class="grid h-5 min-w-5 shrink-0 place-items-center rounded-cp bg-cp-fill-quaternary px-1.5 font-mono text-[9px] font-heavy tabular-nums text-cp-text-tertiary"
+          :title="`另有 ${additionalEntryCount} 个额度组，可展开账号查看`"
+        >
+          +{{ additionalEntryCount }}
+        </span>
+      </div>
+    </template>
+    <AccountUsageWindow v-else variant="compact" />
   </div>
 </template>
diff --git a/frontend/src/views/accounts/components/AccountUsagePanel.vue b/frontend/src/views/accounts/components/AccountUsagePanel.vue
index bf4c9546b..7a3f40327 100644
--- a/frontend/src/views/accounts/components/AccountUsagePanel.vue
+++ b/frontend/src/views/accounts/components/AccountUsagePanel.vue
@@ -31,15 +31,15 @@ const modelUsageColumns = defineTableColumns<AccountModelUsage>([
 </script>
 
 <template>
-  <section class="grid gap-4 rounded-lg bg-cp-bg-container p-4 shadow-cp-tertiary xl:grid-cols-[0.52fr_1.48fr]">
-    <div>
-      <div class="mb-3 flex items-baseline justify-between gap-3">
+  <section class="grid gap-4 rounded-lg bg-cp-bg-container p-4 shadow-cp-tertiary xl:min-h-0 xl:grid-cols-[0.52fr_1.48fr]">
+    <div class="xl:flex xl:min-h-0 xl:flex-col">
+      <div class="mb-3 flex shrink-0 items-baseline justify-between gap-3">
         <h3 class="m-0 text-cp-lg font-heavy text-cp-text">
           Token 结构
         </h3>
         <span class="text-cp-xs font-emphasis text-cp-text-quaternary">当前额度窗口</span>
       </div>
-      <div class="grid gap-2">
+      <div class="grid gap-2 xl:min-h-0 xl:flex-1 xl:grid-rows-5">
         <div class="flex items-center justify-between rounded-lg bg-cp-green-bg px-3 py-2">
           <span class="text-cp-sm font-bold text-cp-green-text-on-bg">输入 Tokens</span>
           <strong class="font-mono text-cp text-cp-text">
@@ -73,8 +73,8 @@ const modelUsageColumns = defineTableColumns<AccountModelUsage>([
       </div>
     </div>
 
-    <div class="min-w-0 pt-4 xl:pt-0 xl:pl-4">
-      <div class="mb-3 flex flex-wrap items-center gap-x-4 gap-y-2">
+    <div class="min-w-0 pt-4 xl:flex xl:min-h-0 xl:flex-col xl:pt-0 xl:pl-4">
+      <div class="mb-3 flex shrink-0 flex-wrap items-center gap-x-4 gap-y-2">
         <h3 class="m-0 shrink-0 text-cp-lg font-heavy text-cp-text">
           模型使用排行
         </h3>
@@ -100,7 +100,7 @@ const modelUsageColumns = defineTableColumns<AccountModelUsage>([
         </div>
       </div>
 
-      <div class="h-52 min-w-0">
+      <div class="h-56 min-w-0 xl:h-auto xl:min-h-0 xl:flex-1 xl:basis-0">
         <BaseTable
           :columns="modelUsageColumns"
           :rows="account.usage.models"
diff --git a/frontend/src/views/accounts/index.vue b/frontend/src/views/accounts/index.vue
index 1d0b3f510..91fbfc338 100644
--- a/frontend/src/views/accounts/index.vue
+++ b/frontend/src/views/accounts/index.vue
@@ -287,7 +287,7 @@ const {
             </template>
 
             <template #expanded="{ row }">
-              <div class="grid gap-3 p-4 lg:grid-cols-[1.05fr_2.45fr]">
+              <div class="grid items-stretch gap-3 p-4 lg:grid-cols-[1.05fr_2.45fr] xl:min-h-[19.25rem]">
                 <AccountQuotaPanel
                   :account="row"
                   :refreshing="refreshingQuotaAccountIds.has(row.id)"