diff --git a/frontend/components/BizMessages.vue b/frontend/components/BizMessages.vue
index 3ca64af..51f2557 100644
--- a/frontend/components/BizMessages.vue
+++ b/frontend/components/BizMessages.vue
@@ -1,8 +1,8 @@
 <template>
   <div class="biz-page h-screen flex overflow-hidden" style="background-color: var(--app-shell-bg)">
 
-    <div class="w-[300px] lg:w-[320px] bg-white border-r border-gray-200 flex flex-col flex-shrink-0 z-10">
-      <div class="p-3 border-b border-gray-200" style="background-color: var(--app-surface-muted)">
+    <div :class="['w-[300px] lg:w-[320px] border-r flex flex-col flex-shrink-0 z-10', isDark ? 'bg-[#1e1e1e] border-[#333]' : 'bg-white border-gray-200']">
+      <div class="p-3 border-b" :class="isDark ? 'border-[#333]' : 'border-gray-200'" style="background-color: var(--app-surface-muted)">
         <div class="contact-search-wrapper flex-1">
           <input
               v-model="searchQuery"
@@ -15,43 +15,44 @@
 
       <div class="flex-1 overflow-y-auto min-h-0">
         <div v-if="loadingAccounts" class="flex justify-center py-4">
-          <span class="text-sm text-gray-400">加载中...</span>
+          <span class="text-sm" :class="isDark ? 'text-gray-500' : 'text-gray-400'">加载中...</span>
         </div>
         <div v-else>
           <div
               v-for="item in filteredAccounts"
               :key="item.username"
               @click="selectAccount(item)"
-              class="flex items-center gap-3 px-4 py-3 cursor-pointer transition-colors border-b border-gray-50"
+              class="flex items-center gap-3 px-4 py-3 cursor-pointer transition-colors border-b"
               :class="[
+                isDark ? 'border-[#333]' : 'border-gray-50',
                 selectedAccount?.username === item.username
-                  ? 'bg-[#E5E5E5]' // 选中状态最深
+                  ? (isDark ? 'bg-[#333]' : 'bg-[#E5E5E5]') // 选中状态
                   : item.username === 'gh_3dfda90e39d6'
-                    ? 'bg-[#F2F2F2] hover:bg-[#EAEAEA]' // 微信支付专门的底色，以示区分
-                    : 'hover:bg-gray-50' // 普通项的悬浮色
+                    ? (isDark ? 'bg-[#2a2a2a] hover:bg-[#333]' : 'bg-[#F2F2F2] hover:bg-[#EAEAEA]') // 微信支付专门的底色
+                    : (isDark ? 'hover:bg-[#252525]' : 'hover:bg-gray-50') // 普通悬浮色
               ]"
           >
-            <img v-if="item.avatar" :src="api.getBizProxyImageUrl(item.avatar)" class="w-10 h-10 rounded-md object-cover bg-gray-200 flex-shrink-0" alt=""/>
+            <img v-if="item.avatar" :src="api.getBizProxyImageUrl(item.avatar)" :class="['w-10 h-10 rounded-md object-cover flex-shrink-0', isDark ? 'bg-[#333]' : 'bg-gray-200']" alt=""/>
             <div v-else class="w-10 h-10 rounded-md bg-[#03C160] text-white flex items-center justify-center text-lg font-medium flex-shrink-0 shadow-sm">
               {{ (item.name || item.username).charAt(0).toUpperCase() }}
             </div>
 
             <div class="flex-1 min-w-0 flex flex-col justify-center gap-0.5">
               <div class="flex justify-between items-center">
-                <h3 class="text-sm text-gray-900 truncate">{{ item.name || item.username }}</h3>
-                <span v-if="item.formatted_last_time" class="text-[11px] text-gray-400 flex-shrink-0 ml-2">
+                <h3 class="text-sm truncate" :class="isDark ? 'text-gray-100' : 'text-gray-900'">{{ item.name || item.username }}</h3>
+                <span v-if="item.formatted_last_time" class="text-[11px] flex-shrink-0 ml-2" :class="isDark ? 'text-gray-500' : 'text-gray-400'">
                   {{ item.formatted_last_time }}
                 </span>
               </div>
 
               <div
                   class="text-[10px] px-1.5 py-0.5 rounded w-max mt-0.5"
-                  :class="{
-                      'text-[#03C160] bg-[#03C160]/10': item.type === 1, // 服务号 - 绿色
-                      'text-blue-500 bg-blue-50': item.type === 0,       // 公众号 - 蓝色
-                      'text-orange-500 bg-orange-50': item.type === 2,   // 企业号 - 橙色
-                      'text-gray-400 bg-gray-100': item.type === 3       // 未知 - 灰色
-                  }"
+                  :class="[
+                      item.type === 1 ? (isDark ? 'text-[#03C160] bg-[#03C160]/20' : 'text-[#03C160] bg-[#03C160]/10') : // 服务号
+                      item.type === 0 ? (isDark ? 'text-blue-400 bg-blue-900/40' : 'text-blue-500 bg-blue-50') :         // 公众号
+                      item.type === 2 ? (isDark ? 'text-orange-400 bg-orange-900/40' : 'text-orange-500 bg-orange-50') : // 企业号
+                                        (isDark ? 'text-gray-400 bg-gray-700/50' : 'text-gray-400 bg-gray-100')          // 未知
+                  ]"
               >
                 {{ {1: '服务号', 0: '公众号', 2: '企业号', 3: '未知'}[item.type] || '未知' }}
               </div>
@@ -61,39 +62,39 @@
       </div>
     </div>
 
-    <div class="flex-1 flex flex-col min-h-0 min-w-0 bg-[#F5F5F5]">
+    <div class="flex-1 flex flex-col min-h-0 min-w-0" :class="isDark ? 'bg-[#121212]' : 'bg-[#F5F5F5]'">
       <div v-if="selectedAccount" class="flex-1 flex flex-col min-h-0 relative">
-        <div class="h-14 border-b border-gray-200 bg-[#F5F5F5] flex items-center px-5 shrink-0 z-10">
-          <h2 class="text-base text-gray-900">{{ selectedAccount.name }}</h2>
+        <div class="h-14 border-b flex items-center px-5 shrink-0 z-10" :class="isDark ? 'bg-[#121212] border-[#333]' : 'bg-[#F5F5F5] border-gray-200'">
+          <h2 class="text-base" :class="isDark ? 'text-gray-100' : 'text-gray-900'">{{ selectedAccount.name }}</h2>
         </div>
 
         <div class="flex-1 overflow-y-auto px-4 py-6 flex flex-col-reverse" @scroll="handleScroll" ref="messageListRef">
-          <div v-if="!hasMore" class="text-center text-xs text-gray-400 py-4 w-full">没有更多消息了</div>
-          <div v-if="loadingMessages" class="text-center text-xs text-gray-400 py-4 w-full">正在加载...</div>
+          <div v-if="!hasMore" class="text-center text-xs py-4 w-full" :class="isDark ? 'text-gray-500' : 'text-gray-400'">没有更多消息了</div>
+          <div v-if="loadingMessages" class="text-center text-xs py-4 w-full" :class="isDark ? 'text-gray-500' : 'text-gray-400'">正在加载...</div>
 
           <div class="w-full max-w-[400px] mx-auto flex flex-col-reverse gap-6">
             <div v-for="msg in messages" :key="msg.local_id" class="w-full">
 
-              <div v-if="selectedAccount.username === 'gh_3dfda90e39d6'" class="bg-white rounded-xl shadow-sm p-5 border border-gray-100">
-                <div class="flex items-center text-gray-500 text-sm mb-5">
+              <div v-if="selectedAccount.username === 'gh_3dfda90e39d6'" class="rounded-xl shadow-sm p-5 border" :class="isDark ? 'bg-[#1e1e1e] border-[#333]' : 'bg-white border-gray-100'">
+                <div class="flex items-center text-sm mb-5" :class="isDark ? 'text-gray-400' : 'text-gray-500'">
                   <img v-if="msg.merchant_icon" :src="api.getBizProxyImageUrl(msg.merchant_icon)" class="w-6 h-6 rounded-full mr-2 object-cover"  alt=""/>
-                  <div v-else class="w-6 h-6 rounded-full mr-2 bg-green-100 flex items-center justify-center text-green-600">¥</div>
+                  <div v-else class="w-6 h-6 rounded-full mr-2 flex items-center justify-center" :class="isDark ? 'bg-green-900/40 text-green-400' : 'bg-green-100 text-green-600'">¥</div>
                   <span>{{ msg.merchant_name || '微信支付' }}</span>
                 </div>
                 <div class="text-center mb-6">
-                  <h3 class="text-[22px] font-medium text-gray-900 mb-1">{{ msg.title }}</h3>
+                  <h3 class="text-[22px] font-medium mb-1" :class="isDark ? 'text-gray-100' : 'text-gray-900'">{{ msg.title }}</h3>
                 </div>
-                <div class="text-[13px] text-gray-500 whitespace-pre-wrap leading-relaxed">
+                <div class="text-[13px] whitespace-pre-wrap leading-relaxed" :class="isDark ? 'text-gray-400' : 'text-gray-500'">
                   {{ msg.description }}
                 </div>
-                <div class="mt-4 pt-3 border-t border-gray-100 text-[12px] text-gray-400 text-right">
+                <div class="mt-4 pt-3 border-t text-[12px] text-right" :class="isDark ? 'border-[#333] text-gray-500' : 'border-gray-100 text-gray-400'">
                   {{ msg.formatted_time }}
                 </div>
               </div>
 
-              <div v-else class="bg-white rounded-xl shadow-sm overflow-hidden border border-gray-100">
+              <div v-else class="rounded-xl shadow-sm overflow-hidden border" :class="isDark ? 'bg-[#1e1e1e] border-[#333]' : 'bg-white border-gray-100'">
                 <a :href="msg.url" target="_blank" class="block relative group cursor-pointer">
-                  <img :src="msg.cover ? api.getBizProxyImageUrl(msg.cover) : defaultImage" class="w-full h-[180px] object-cover bg-gray-100"  alt=""/>
+                  <img :src="msg.cover ? api.getBizProxyImageUrl(msg.cover) : defaultImage" :class="['w-full h-[180px] object-cover', isDark ? 'bg-[#333]' : 'bg-gray-100']"  alt=""/>
                   <div class="absolute bottom-0 left-0 right-0 bg-gradient-to-t from-black/80 to-transparent p-3 pt-8">
                     <h3 class="text-white text-[15px] font-medium leading-snug line-clamp-2 group-hover:underline">
                       {{ msg.title }}
@@ -101,7 +102,7 @@
                   </div>
                 </a>
 
-                <div v-if="msg.des" class="px-4 py-3 text-[13px] text-gray-500 border-b border-gray-50">
+                <div v-if="msg.des" class="px-4 py-3 text-[13px] border-b" :class="isDark ? 'text-gray-400 border-[#333]' : 'text-gray-500 border-gray-50'">
                   {{ msg.des }}
                 </div>
 
@@ -111,12 +112,13 @@
                       :key="idx"
                       :href="item.url"
                       target="_blank"
-                      class="flex items-center justify-between p-3 border-t border-gray-100 hover:bg-gray-50 cursor-pointer group"
+                      class="flex items-center justify-between p-3 border-t hover:bg-opacity-50 cursor-pointer group"
+                      :class="isDark ? 'border-[#333] hover:bg-[#252525]' : 'border-gray-100 hover:bg-gray-50'"
                   >
-                    <span class="text-[14px] text-gray-800 leading-snug line-clamp-2 pr-3 group-hover:underline">
+                    <span class="text-[14px] leading-snug line-clamp-2 pr-3 group-hover:underline" :class="isDark ? 'text-gray-200' : 'text-gray-800'">
                       {{ item.title }}
                     </span>
-                    <img :src="item.cover ? api.getBizProxyImageUrl(item.cover) : defaultImage" class="w-12 h-12 rounded object-cover flex-shrink-0 bg-gray-100 border border-gray-100"  alt=""/>
+                    <img :src="item.cover ? api.getBizProxyImageUrl(item.cover) : defaultImage" :class="['w-12 h-12 rounded object-cover flex-shrink-0 border', isDark ? 'bg-[#333] border-[#444]' : 'bg-gray-100 border-gray-100']"  alt=""/>
                   </a>
                 </div>
               </div>
@@ -124,7 +126,17 @@
             </div>
           </div>
         </div>
+      </div>
 
+      <div v-else class="flex-1 flex items-center justify-center">
+        <div class="text-center">
+          <div class="w-20 h-20 mx-auto mb-5 rounded-2xl flex items-center justify-center" :class="isDark ? 'bg-[#2a2a2a]' : 'bg-gray-200/50'">
+            <svg class="w-10 h-10" :class="isDark ? 'text-gray-600' : 'text-gray-400'" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19 20H5a2 2 0 01-2-2V6a2 2 0 012-2h10a2 2 0 012 2v1m2 13a2 2 0 01-2-2V7m2 13a2 2 0 002-2V9.5L18.5 7H20" />
+            </svg>
+          </div>
+          <p class="text-sm" :class="isDark ? 'text-gray-500' : 'text-gray-400'">请选择一个服务号查看消息</p>
+        </div>
       </div>
     </div>
   </div>
@@ -136,12 +148,16 @@ import { ref, computed, onMounted } from 'vue'
 import { useApi } from '~/composables/useApi'
 const api = useApi()
 
-// 状态
+import { storeToRefs } from 'pinia'
+import { useThemeStore } from '~/stores/theme'
+
 const accounts = ref([])
 const loadingAccounts = ref(false)
 const searchQuery = ref('')
 const selectedAccount = ref(null)
 
+const themeStore = useThemeStore()
+const { isDark } = storeToRefs(themeStore)
 const messages = ref([])
 const loadingMessages = ref(false)
 const offset = ref(0)