diff --git a/src/components/UI/DatePicker.vue b/src/components/UI/DatePicker.vue
new file mode 100644
index 0000000..3177a69
--- /dev/null
+++ b/src/components/UI/DatePicker.vue
@@ -0,0 +1,105 @@
+<script setup lang="ts">
+/**
+ * 日期选择器组件
+ * 基于 UPopover + UCalendar 封装
+ */
+import { ref, computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import dayjs from 'dayjs'
+import { CalendarDate } from '@internationalized/date'
+
+const { t, locale } = useI18n()
+
+const props = withDefaults(
+  defineProps<{
+    /** 日期值 (YYYY-MM-DD 格式字符串) */
+    modelValue: string
+    /** 占位符文本 */
+    placeholder?: string
+    /** 是否显示清空按钮 */
+    clearable?: boolean
+    /** 按钮宽度类 */
+    widthClass?: string
+  }>(),
+  {
+    placeholder: '',
+    clearable: true,
+    widthClass: 'w-32',
+  }
+)
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: string): void
+}>()
+
+// Popover 开关状态
+const popoverOpen = ref(false)
+
+// 日历组件的 locale
+const calendarLocale = computed(() => (locale.value === 'zh-CN' ? 'zh-CN' : 'en-US'))
+
+// 辅助函数：将字符串日期转换为 CalendarDate
+function stringToCalendarDate(dateStr: string): CalendarDate | undefined {
+  if (!dateStr) return undefined
+  const d = dayjs(dateStr)
+  return new CalendarDate(d.year(), d.month() + 1, d.date())
+}
+
+// 辅助函数：将 CalendarDate 转换为字符串
+function calendarDateToString(date: CalendarDate | undefined): string {
+  if (!date) return ''
+  return `${date.year}-${String(date.month).padStart(2, '0')}-${String(date.day).padStart(2, '0')}`
+}
+
+// CalendarDate 对象（用于 UCalendar 双向绑定）
+const dateObj = computed<CalendarDate | undefined>({
+  get: () => stringToCalendarDate(props.modelValue),
+  set: (val) => {
+    emit('update:modelValue', calendarDateToString(val))
+    if (val) popoverOpen.value = false
+  },
+})
+
+// 格式化显示的日期
+const dateDisplay = computed(() => (props.modelValue ? dayjs(props.modelValue).format('YYYY/MM/DD') : ''))
+
+// 清空日期
+function clearDate() {
+  emit('update:modelValue', '')
+  popoverOpen.value = false
+}
+</script>
+
+<template>
+  <UPopover v-model:open="popoverOpen" :ui="{ content: 'z-[100]' }">
+    <UButton
+      :label="dateDisplay || placeholder || t('selectDate')"
+      icon="i-heroicons-calendar-days"
+      variant="outline"
+      color="neutral"
+      size="sm"
+      :class="[widthClass, 'justify-start', { 'text-gray-400': !dateDisplay }]"
+    />
+    <template #content>
+      <UCalendar v-model="dateObj" :number-of-months="1" :fixed-weeks="false" :locale="calendarLocale" />
+      <div v-if="clearable" class="px-2 pb-2">
+        <UButton variant="ghost" size="xs" color="neutral" class="w-full" @click="clearDate">
+          {{ t('clearDate') }}
+        </UButton>
+      </div>
+    </template>
+  </UPopover>
+</template>
+
+<i18n>
+{
+  "zh-CN": {
+    "selectDate": "选择日期",
+    "clearDate": "清空日期"
+  },
+  "en-US": {
+    "selectDate": "Select Date",
+    "clearDate": "Clear"
+  }
+}
+</i18n>
diff --git a/src/components/UI/index.ts b/src/components/UI/index.ts
index 305445a..608a3e4 100644
--- a/src/components/UI/index.ts
+++ b/src/components/UI/index.ts
@@ -10,3 +10,4 @@ export { default as UITabs } from './Tabs.vue'
 export { default as SubTabs } from './SubTabs.vue'
 export { default as PageAnchorsNav } from './PageAnchorsNav.vue'
 export { default as FileDropZone } from './FileDropZone.vue'
+export { default as DatePicker } from './DatePicker.vue'
diff --git a/src/components/common/ChatRecord/ChatRecordDrawer.vue b/src/components/common/ChatRecord/ChatRecordDrawer.vue
index e84eb5f..378fb09 100644
--- a/src/components/common/ChatRecord/ChatRecordDrawer.vue
+++ b/src/components/common/ChatRecord/ChatRecordDrawer.vue
@@ -149,7 +149,7 @@ watch(
     v-model:open="layoutStore.showChatRecordDrawer"
     direction="right"
     :handle="false"
-    :ui="{ content: 'z-[10000]' }"
+    :ui="{ content: 'z-50' }"
   >
     <template #content>
       <div class="flex h-full w-[680px] flex-col bg-white dark:bg-gray-900" style="-webkit-app-region: no-drag">
diff --git a/src/components/common/ChatRecord/FilterPanel.vue b/src/components/common/ChatRecord/FilterPanel.vue
index 0a4c2c2..1d81185 100644
--- a/src/components/common/ChatRecord/FilterPanel.vue
+++ b/src/components/common/ChatRecord/FilterPanel.vue
@@ -6,6 +6,7 @@
 import { ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import dayjs from 'dayjs'
+import { DatePicker } from '@/components/UI'
 import type { ChatRecordQuery, FilterFormData } from './types'
 
 const { t } = useI18n()
@@ -122,9 +123,9 @@ function resetFilter() {
       <UInput v-model="formData.messageId" type="number" :placeholder="t('messageId')" size="sm" class="w-24" />
       <UInput v-model="formData.memberName" :placeholder="t('memberNotSupported')" size="sm" class="w-28" disabled />
       <div class="flex items-center gap-2">
-        <UInput v-model="formData.startDate" type="date" size="sm" class="w-32" />
+        <DatePicker v-model="formData.startDate" :placeholder="t('startDate')" />
         <span class="text-xs text-gray-400">~</span>
-        <UInput v-model="formData.endDate" type="date" size="sm" class="w-32" />
+        <DatePicker v-model="formData.endDate" :placeholder="t('endDate')" />
       </div>
     </div>
 
@@ -155,6 +156,8 @@ function resetFilter() {
     "messageId": "消息 ID",
     "memberNotSupported": "成员（暂不支持）",
     "keywordsPlaceholder": "关键词，多个用逗号分隔，回车搜索",
+    "startDate": "起始日期",
+    "endDate": "结束日期",
     "reset": "重置",
     "filter": "筛选"
   },
@@ -162,6 +165,8 @@ function resetFilter() {
     "messageId": "Message ID",
     "memberNotSupported": "Member (not supported)",
     "keywordsPlaceholder": "Keywords, comma separated, Enter to search",
+    "startDate": "Start Date",
+    "endDate": "End Date",
     "reset": "Reset",
     "filter": "Filter"
   }