diff --git a/frontend/src/i18n/locales/en/logs.ts b/frontend/src/i18n/locales/en/logs.ts
index 76dd98f..06aed87 100644
--- a/frontend/src/i18n/locales/en/logs.ts
+++ b/frontend/src/i18n/locales/en/logs.ts
@@ -146,6 +146,7 @@ export default {
     loadingQuery: 'Querying Loki',
     loadingWait: 'Waiting for {{seconds}}s. Wide-range queries may take a while.',
     pagingHint: 'Logs are paged newest to oldest; charts show the current page, and the top timeline covers the whole query range.',
+    domainAll: 'All domains',
     domainFilter: 'Domain filter',
     domainPlaceholder: 'Type or pick a domain',
     domainQuery: 'Query in Loki',
@@ -256,6 +257,7 @@ export default {
     loadFailed: 'Failed to load context',
   },
   access: {
+    labelsUnlimited: 'Unlimited · all namespaces',
     loadFailed: 'Failed to load query policies',
     validate: 'Fill in the policy group name, choose a data source, and select "Anyone" or at least one user',
     saveFailed: 'Failed to save policy group',
diff --git a/frontend/src/i18n/locales/zh/logs.ts b/frontend/src/i18n/locales/zh/logs.ts
index 0fbd7c1..62978bc 100644
--- a/frontend/src/i18n/locales/zh/logs.ts
+++ b/frontend/src/i18n/locales/zh/logs.ts
@@ -141,6 +141,7 @@ export default {
     loadingQuery: '正在查询 Loki',
     loadingWait: '已等待 {{seconds}} 秒。大范围查询可能需要较长时间。',
     pagingHint: '日志按时间从新到旧翻页；图表展示当前页，顶部时间线展示整个查询范围。',
+    domainAll: '全部域名',
     domainFilter: '域名筛选',
     domainPlaceholder: '输入或选择域名',
     domainQuery: '在 Loki 中查询',
@@ -249,6 +250,7 @@ export default {
     loadFailed: '读取上下文失败',
   },
   access: {
+    labelsUnlimited: '不限 · 可查询全部命名空间',
     loadFailed: '加载查询策略失败',
     validate: '请填写策略组名称，选择数据源，并选择「所有人」或至少一位用户',
     saveFailed: '保存策略组失败',
diff --git a/frontend/src/pages/logs/components/LogResultsPanel.tsx b/frontend/src/pages/logs/components/LogResultsPanel.tsx
index 615790c..8306f81 100644
--- a/frontend/src/pages/logs/components/LogResultsPanel.tsx
+++ b/frontend/src/pages/logs/components/LogResultsPanel.tsx
@@ -2,7 +2,7 @@ import { useEffect, useMemo, useState } from 'react'
 import { Loader2 } from 'lucide-react'
 import { useTranslation } from 'react-i18next'
 import { Button } from '@/components/ui/button'
-import { Input } from '@/components/ui/input'
+import { SearchableValueSelect } from '@/components/SearchableValueSelect'
 import type { LogEntry } from '@/api/logs'
 import { parseIngressAccessLog } from '@/lib/ingress-access-log'
 import { applyLabelFilter } from '../query-utils'
@@ -50,9 +50,19 @@ export function LogResultsPanel({ entries, searched, hasSource, pageIndex, hasNe
     </div>}
     {pageIndex > 0 && <p className="mb-2 text-xs text-muted-foreground">{t('results.pagingHint')}</p>}
     {domains.length > 0 && <div className="mb-3 flex flex-wrap items-center gap-2 text-xs">
-      <label htmlFor="log-domain-filter" className="shrink-0 text-muted-foreground">{t('results.domainFilter')}</label>
-      <Input id="log-domain-filter" list="log-domain-options" type="search" className="h-8 w-60" value={domainFilter} onChange={event => setDomainFilter(event.target.value)} placeholder={t('results.domainPlaceholder')} />
-      <datalist id="log-domain-options">{domains.map(domain => <option key={domain} value={domain} />)}</datalist>
+      <span className="shrink-0 text-muted-foreground">{t('results.domainFilter')}</span>
+      <SearchableValueSelect
+        hideLabel
+        ariaLabel={t('results.domainFilter')}
+        values={domains}
+        value={domainFilter}
+        onChange={setDomainFilter}
+        allowEmpty
+        emptyLabel={t('results.domainAll')}
+        placeholder={t('results.domainPlaceholder')}
+        className="min-w-60"
+        triggerClassName="h-8"
+      />
       <Button type="button" size="sm" variant="outline" disabled={!domainFilter.trim() || loading} onClick={() => onApplyDomain(domainFilter.trim())}>{t('results.domainQuery')}</Button>
       <span className="text-muted-foreground">{t('results.domainHint', { shown: visibleEntries.length, total: entries.length })}</span>
     </div>}
diff --git a/frontend/src/pages/logs/components/PolicyGroupsPage.tsx b/frontend/src/pages/logs/components/PolicyGroupsPage.tsx
index a851f3f..7933153 100644
--- a/frontend/src/pages/logs/components/PolicyGroupsPage.tsx
+++ b/frontend/src/pages/logs/components/PolicyGroupsPage.tsx
@@ -1,7 +1,10 @@
 import { useEffect, useState } from 'react'
+import { Plus, UsersRound } from 'lucide-react'
 import { toast } from 'sonner'
 import { useTranslation } from 'react-i18next'
 import { Button } from '@/components/ui/button'
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
+import { Checkbox } from '@/components/ui/checkbox'
 import { Input } from '@/components/ui/input'
 import { ConfirmDialog } from '@/components/ConfirmDialog'
 import { ErrorState } from '@/components/ErrorState'
@@ -84,20 +87,49 @@ export function PolicyGroupsPage({ sources }: { sources: LogSource[] }) {
 
   return <div className="grid gap-6 xl:grid-cols-[minmax(240px,0.85fr)_minmax(0,2fr)]">
     <aside className="rounded-xl border bg-card p-5 space-y-4">
-      <div className="flex items-center justify-between gap-2"><h2 className="font-semibold">{t('access.listTitle')}</h2><Button size="sm" onClick={() => setForm(emptyForm(sources[0]?.id ?? 0))}>{t('access.create')}</Button></div>
+      <div className="flex items-center justify-between gap-2">
+        <h2 className="font-semibold">{t('access.listTitle')} <span className="text-sm font-normal text-muted-foreground">({groups.length})</span></h2>
+        <Button size="sm" onClick={() => setForm(emptyForm(sources[0]?.id ?? 0))}><Plus className="mr-1 size-4" />{t('access.create')}</Button>
+      </div>
       <p className="text-sm text-muted-foreground">{t('access.listHint')}</p>
       {loading && <p className="text-sm text-muted-foreground">{t('access.loading')}</p>}
       {error && <ErrorState message={error} onRetry={() => void reload()} />}
       {!loading && !error && groups.length === 0 && <p className="text-sm text-muted-foreground">{t('access.empty')}</p>}
       <div className="space-y-2">{groups.map(group => <button key={group.id} type="button" onClick={() => setForm({ ...group, labels: { ...group.labels }, userIds: [...group.userIds] })} className={`w-full rounded-lg border p-3 text-left transition-colors ${form.id === group.id ? 'border-primary bg-primary/5' : 'hover:bg-muted'}`}>
-        <strong className="block text-sm">{group.name}</strong><span className="block mt-1 text-xs text-muted-foreground">{sourceName(group.sourceId)} · {group.userIds.includes(ANYONE) ? t('access.anyone') : t('access.userCount', { count: group.userIds.length })}</span><span className="block mt-1 truncate font-mono text-xs text-muted-foreground">{JSON.stringify(group.labels)}</span>
+        <strong className="block text-sm">{group.name}</strong><span className="block mt-1 text-xs text-muted-foreground">{sourceName(group.sourceId)} · {group.userIds.includes(ANYONE) ? t('access.anyone') : t('access.userCount', { count: group.userIds.length })}</span>{Object.keys(group.labels).length > 0 ? (
+          <span className="mt-1 flex flex-wrap gap-1">
+            {Object.entries(group.labels).map(([key, value]) => <span key={key} className="rounded bg-muted px-1.5 py-0.5 font-mono text-[11px] text-muted-foreground">{key}={value}</span>)}
+          </span>
+        ) : (
+          <span className="mt-1 block text-xs text-muted-foreground">{t('access.labelsUnlimited')}</span>
+        )}
       </button>)}</div>
     </aside>
     <section className="rounded-xl border bg-card p-5 space-y-6">
       <div className="flex items-start justify-between gap-3"><div><h2 className="font-semibold">{form.id ? t('access.editTitle') : t('access.createTitle')}</h2><p className="mt-1 text-sm text-muted-foreground">{t('access.formHint')}</p></div>{form.id && <Button variant="outline" size="sm" className="text-destructive" onClick={() => setDeleteTarget(groups.find(group => group.id === form.id) ?? null)}>{t('access.remove')}</Button>}</div>
-      <div className="grid gap-4 sm:grid-cols-2"><label className="text-sm font-medium">{t('access.nameLabel')}<Input className="mt-1" value={form.name} onChange={event => setForm(current => ({ ...current, name: event.target.value }))} placeholder={t('access.namePlaceholder')} /></label><label className="text-sm font-medium">{t('access.sourceLabel')}<select className="mt-1 block h-9 w-full rounded-md border bg-background px-3" value={form.sourceId} onChange={event => setForm(current => ({ ...current, sourceId: Number(event.target.value), labels: {}, userIds: [] }))}>{sources.length === 0 && <option value={0}>{t('access.sourceEmpty')}</option>}{sources.map(source => <option key={source.id} value={source.id}>{source.name}</option>)}</select></label></div>
+      <div className="grid gap-4 sm:grid-cols-2"><label className="text-sm font-medium">{t('access.nameLabel')}<Input className="mt-1" value={form.name} onChange={event => setForm(current => ({ ...current, name: event.target.value }))} placeholder={t('access.namePlaceholder')} /></label><label className="text-sm font-medium">{t('access.sourceLabel')}
+        <Select
+          value={form.sourceId ? String(form.sourceId) : undefined}
+          onValueChange={value => setForm(current => ({ ...current, sourceId: Number(value), labels: {}, userIds: [] }))}
+          disabled={sources.length === 0}
+        >
+          <SelectTrigger className="mt-1 h-9 w-full">
+            <SelectValue placeholder={t('access.sourceEmpty')} />
+          </SelectTrigger>
+          <SelectContent>
+            {sources.map(source => <SelectItem key={source.id} value={String(source.id)}>{source.name}</SelectItem>)}
+          </SelectContent>
+        </Select>
+      </label></div>
       <div><h3 className="mb-2 text-sm font-medium">{t('access.scopeTitle')}</h3><AccessRuleEditor sourceId={form.sourceId} username={form.name || t('access.ownerFallback')} labels={form.labels} onChange={labels => setForm(current => ({ ...current, labels }))} /><p className="mt-2 text-xs text-muted-foreground">{t('access.scopeHint')}</p></div>
-      <div className="space-y-3"><div className="flex items-center justify-between gap-2"><h3 className="text-sm font-medium">{t('access.usersTitle')} <span className="text-muted-foreground">{form.userIds.includes(ANYONE) ? t('access.selectedAnyone') : t('access.selectedCount', { count: form.userIds.length })}</span></h3><div className="flex gap-2"><Button size="sm" variant={form.userIds.includes(ANYONE) ? 'default' : 'outline'} onClick={() => setForm(current => current.userIds.includes(ANYONE) ? { ...current, userIds: [] } : { ...current, userIds: [ANYONE] })}>{form.userIds.includes(ANYONE) ? t('access.anyoneActive') : t('access.anyoneToggle')}</Button><Button size="sm" variant="outline" disabled={form.userIds.includes(ANYONE)} onClick={() => setForm(current => ({ ...current, userIds: Array.from(new Set([...current.userIds, ...visibleUsers.filter(user => !assignedElsewhere.has(user.id)).map(user => user.id)])) }))}>{t('access.selectFiltered')}</Button><Button size="sm" variant="ghost" onClick={() => setForm(current => ({ ...current, userIds: [] }))}>{t('access.clear')}</Button></div></div><p className="text-xs text-muted-foreground">{t('access.usersHint')}</p><Input aria-label={t('access.searchAria')} value={filter} onChange={event => setFilter(event.target.value)} placeholder={t('access.searchPlaceholder')} /><div className="max-h-60 overflow-auto rounded-md border p-2 grid gap-1 sm:grid-cols-2 lg:grid-cols-3">{visibleUsers.map(user => <label key={user.id} className={`flex items-center gap-2 rounded px-2 py-1.5 text-sm ${assignedElsewhere.has(user.id) ? 'text-muted-foreground' : 'hover:bg-muted'}`}><input type="checkbox" disabled={assignedElsewhere.has(user.id) || form.userIds.includes(ANYONE)} checked={form.userIds.includes(user.id)} onChange={event => setForm(current => ({ ...current, userIds: event.target.checked ? [...current.userIds, user.id] : current.userIds.filter(id => id !== user.id) }))} /><span className="truncate">{user.username}</span>{assignedElsewhere.has(user.id) && <span className="text-xs">{t('access.grouped')}</span>}</label>)}{visibleUsers.length === 0 && <p className="p-2 text-sm text-muted-foreground">{t('access.noMatch')}</p>}</div></div>
+      <div className="space-y-3"><div className="flex items-center justify-between gap-2"><h3 className="text-sm font-medium">{t('access.usersTitle')} <span className="text-muted-foreground">{form.userIds.includes(ANYONE) ? t('access.selectedAnyone') : t('access.selectedCount', { count: form.userIds.length })}</span></h3><div className="flex gap-2"><Button size="sm" variant={form.userIds.includes(ANYONE) ? 'default' : 'outline'} onClick={() => setForm(current => current.userIds.includes(ANYONE) ? { ...current, userIds: [] } : { ...current, userIds: [ANYONE] })}><UsersRound className="mr-1 size-3.5" />{form.userIds.includes(ANYONE) ? t('access.anyoneActive') : t('access.anyoneToggle')}</Button><Button size="sm" variant="outline" disabled={form.userIds.includes(ANYONE)} onClick={() => setForm(current => ({ ...current, userIds: Array.from(new Set([...current.userIds, ...visibleUsers.filter(user => !assignedElsewhere.has(user.id)).map(user => user.id)])) }))}>{t('access.selectFiltered')}</Button><Button size="sm" variant="ghost" onClick={() => setForm(current => ({ ...current, userIds: [] }))}>{t('access.clear')}</Button></div></div><p className="text-xs text-muted-foreground">{t('access.usersHint')}</p><Input aria-label={t('access.searchAria')} value={filter} onChange={event => setFilter(event.target.value)} placeholder={t('access.searchPlaceholder')} /><div className={`grid max-h-60 grid-cols-1 gap-1 overflow-auto rounded-md border p-2 sm:grid-cols-2 lg:grid-cols-3 ${form.userIds.includes(ANYONE) ? 'pointer-events-none opacity-50' : ''}`}>{visibleUsers.map(user => (
+          <label key={user.id} htmlFor={`policy-user-${user.id}`} className={`flex items-center gap-2 rounded px-2 py-1.5 text-sm ${assignedElsewhere.has(user.id) ? 'text-muted-foreground' : 'hover:bg-muted'}`}>
+            <Checkbox id={`policy-user-${user.id}`} disabled={assignedElsewhere.has(user.id)} checked={form.userIds.includes(user.id)} onCheckedChange={checked => setForm(current => ({ ...current, userIds: checked ? [...current.userIds, user.id] : current.userIds.filter(id => id !== user.id) }))} />
+            <span className="truncate">{user.username}</span>
+            {user.nickname && <span className="truncate text-xs text-muted-foreground">{user.nickname}</span>}
+            {assignedElsewhere.has(user.id) && <span className="ml-auto shrink-0 text-xs">{t('access.grouped')}</span>}
+          </label>
+        ))}{visibleUsers.length === 0 && <p className="p-2 text-sm text-muted-foreground">{t('access.noMatch')}</p>}</div></div>
       <div className="flex justify-end"><Button disabled={saving || !sources.length} onClick={() => void save()}>{saving ? t('access.saving') : t('access.save')}</Button></div>
     </section>
     <ConfirmDialog open={deleteTarget !== null} onOpenChange={open => { if (!open) setDeleteTarget(null) }} name={deleteTarget?.name} title={t('access.deleteTitle')} description={t('access.deleteDesc', { name: deleteTarget?.name ?? '' })} loading={saving} onConfirm={() => void remove()} />
diff --git a/frontend/src/pages/logs/components/SourcesManager.tsx b/frontend/src/pages/logs/components/SourcesManager.tsx
index b8b9bbc..669ef28 100644
--- a/frontend/src/pages/logs/components/SourcesManager.tsx
+++ b/frontend/src/pages/logs/components/SourcesManager.tsx
@@ -4,6 +4,7 @@ import { toast } from 'sonner'
 import { Database, Globe, Loader2, Lock, Pencil, Plus, Server, Trash2, Zap } from 'lucide-react'
 import { Badge } from '@/components/ui/badge'
 import { Button } from '@/components/ui/button'
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Checkbox } from '@/components/ui/checkbox'
 import { Dialog, DialogContent, DialogFooter, DialogHeader, DialogTitle } from '@/components/ui/dialog'
@@ -180,10 +181,17 @@ export const SourcesManager = memo(function SourcesManager({ sources, onSaved }:
               <>
                 <label className={labelClass}>
                   {t('source.clusterLabel')}
-                  <select className="mt-1 block h-9 w-full rounded-md border bg-background px-3 text-sm" value={form.clusterID ?? ''} onChange={event => setForm({ ...form, clusterID: Number(event.target.value) })}>
-                    <option value="">{t('source.clusterPlaceholder')}</option>
-                    {clusters.map(cluster => <option key={cluster.id} value={cluster.id}>{cluster.name}</option>)}
-                  </select>
+                  <Select
+                    value={form.clusterID ? String(form.clusterID) : undefined}
+                    onValueChange={value => setForm({ ...form, clusterID: Number(value) })}
+                  >
+                    <SelectTrigger className="mt-1 h-9 w-full">
+                      <SelectValue placeholder={t('source.clusterPlaceholder')} />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {clusters.map(cluster => <SelectItem key={cluster.id} value={String(cluster.id)}>{cluster.name}</SelectItem>)}
+                    </SelectContent>
+                  </Select>
                 </label>
                 <label className={labelClass}>
                   {t('source.namespaceLabel')}
@@ -201,12 +209,17 @@ export const SourcesManager = memo(function SourcesManager({ sources, onSaved }:
             )}
             <label className={labelClass}>
               {t('source.authLabel')}
-              <select className="mt-1 block h-9 w-full rounded-md border bg-background px-3 text-sm" value={form.authType ?? 'none'} onChange={event => setForm({ ...form, authType: event.target.value })}>
-                <option value="none">{t('source.authNone')}</option>
-                <option value="basic">{t('source.authBasic')}</option>
-                <option value="bearer">{t('source.authBearer')}</option>
-                <option value="headers">{t('source.authHeaders')}</option>
-              </select>
+              <Select value={form.authType ?? 'none'} onValueChange={value => setForm({ ...form, authType: value })}>
+                <SelectTrigger className="mt-1 h-9 w-full">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="none">{t('source.authNone')}</SelectItem>
+                  <SelectItem value="basic">{t('source.authBasic')}</SelectItem>
+                  <SelectItem value="bearer">{t('source.authBearer')}</SelectItem>
+                  <SelectItem value="headers">{t('source.authHeaders')}</SelectItem>
+                </SelectContent>
+              </Select>
             </label>
             {form.authType === 'basic' && (
               <>