diff --git a/frontend/app.vue b/frontend/app.vue
index 75ca905..cb55b98 100644
--- a/frontend/app.vue
+++ b/frontend/app.vue
@@ -14,12 +14,23 @@
 // So we detect desktop onMounted and update reactively.
 const isDesktop = ref(false)
 
+const updateDprVar = () => {
+  const dpr = window.devicePixelRatio || 1
+  document.documentElement.style.setProperty('--dpr', String(dpr))
+}
+
 onMounted(() => {
   isDesktop.value = !!window?.wechatDesktop
+  updateDprVar()
+  window.addEventListener('resize', updateDprVar)
+})
+
+onBeforeUnmount(() => {
+  window.removeEventListener('resize', updateDprVar)
 })
 
 const route = useRoute()
-const isChatRoute = computed(() => route.path?.startsWith('/chat'))
+const isChatRoute = computed(() => route.path?.startsWith('/chat') || route.path?.startsWith('/sns'))
 
 const rootClass = computed(() => {
   const base = 'bg-gradient-to-br from-green-50 via-emerald-50 to-green-100'
@@ -34,6 +45,14 @@ const contentClass = computed(() =>
 </script>
 
 <style>
+:root {
+  --dpr: 1;
+  /* Left sidebar rail (chat/sns): icon size + spacing */
+  --sidebar-rail-step: 48px;
+  --sidebar-rail-btn: 32px;
+  --sidebar-rail-icon: 24px;
+}
+
 /* Electron 桌面端使用自绘标题栏（frame: false）。
  * 页面里如果继续用 Tailwind 的 h-screen/min-h-screen（100vh），会把标题栏高度叠加进去，从而出现外层滚动条。
  * 这里把 “screen” 在桌面端视为内容区高度（100%），让标题栏高度自然内嵌在布局里。 */
diff --git a/frontend/composables/useApi.js b/frontend/composables/useApi.js
index 9c4aa57..d2bf197 100644
--- a/frontend/composables/useApi.js
+++ b/frontend/composables/useApi.js
@@ -179,6 +179,46 @@ export const useApi = () => {
     return await request(url)
   }
 
+  // 朋友圈时间线
+  const listSnsTimeline = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.account) query.set('account', params.account)
+    if (params && params.limit != null) query.set('limit', String(params.limit))
+    if (params && params.offset != null) query.set('offset', String(params.offset))
+    if (params && params.usernames && Array.isArray(params.usernames) && params.usernames.length > 0) {
+      query.set('usernames', params.usernames.join(','))
+    } else if (params && params.usernames && typeof params.usernames === 'string') {
+      query.set('usernames', params.usernames)
+    }
+    if (params && params.keyword) query.set('keyword', params.keyword)
+    const url = '/sns/timeline' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+
+  // 朋友圈图片本地缓存候选（用于错图时手动选择）
+  const listSnsMediaCandidates = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.account) query.set('account', params.account)
+    if (params && params.create_time != null) query.set('create_time', String(params.create_time))
+    if (params && params.width != null) query.set('width', String(params.width))
+    if (params && params.height != null) query.set('height', String(params.height))
+    if (params && params.limit != null) query.set('limit', String(params.limit))
+    if (params && params.offset != null) query.set('offset', String(params.offset))
+    const url = '/sns/media_candidates' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+
+  // 保存朋友圈图片手动匹配结果（本机）
+  const saveSnsMediaPicks = async (data = {}) => {
+    return await request('/sns/media_picks', {
+      method: 'POST',
+      body: {
+        account: data.account || null,
+        picks: (data && data.picks && typeof data.picks === 'object' && !Array.isArray(data.picks)) ? data.picks : {}
+      }
+    })
+  }
+
   const openChatMediaFolder = async (params = {}) => {
     const query = new URLSearchParams()
     if (params && params.account) query.set('account', params.account)
@@ -288,6 +328,9 @@ export const useApi = () => {
     buildChatSearchIndex,
     listChatSearchSenders,
     getChatMessagesAround,
+    listSnsTimeline,
+    listSnsMediaCandidates,
+    saveSnsMediaPicks,
     openChatMediaFolder,
     downloadChatEmoji,
     saveMediaKeys,
diff --git a/frontend/pages/chat/[[username]].vue b/frontend/pages/chat/[[username]].vue
index b2348ab..f62b337 100644
--- a/frontend/pages/chat/[[username]].vue
+++ b/frontend/pages/chat/[[username]].vue
@@ -1,46 +1,99 @@
 <template>
   <div class="h-screen flex overflow-hidden" style="background-color: #EDEDED">
     <!-- 左侧边栏 -->
-    <div class="w-16 border-r border-gray-200 flex flex-col" style="background-color: #e8e7e7">
-      <div class="flex-1 flex flex-col justify-start pt-0">
+    <div class="border-r border-gray-200 flex flex-col" style="background-color: #e8e7e7; width: 60px; min-width: 60px; max-width: 60px">
+      <div class="flex-1 flex flex-col justify-start pt-0 gap-0">
+        <!-- 头像（类似微信侧边栏） -->
+        <div class="w-full h-[60px] flex items-center justify-center">
+          <div class="w-[40px] h-[40px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0">
+            <img v-if="selfAvatarUrl" :src="selfAvatarUrl" alt="avatar" class="w-full h-full object-cover" />
+            <div
+              v-else
+              class="w-full h-full flex items-center justify-center text-white text-xs font-bold"
+              style="background-color: #4B5563"
+            >
+              我
+            </div>
+          </div>
+        </div>
+
         <!-- 聊天图标 (与 oh-my-wechat 一致) -->
-        <div class="w-16 h-16 flex items-center justify-center chat-tab selected text-[#07b75b]">
-          <div class="w-7 h-7">
-            <svg class="w-full h-full" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
-              <path d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z"/>
-            </svg>
+        <div class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center group">
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md bg-transparent group-hover:bg-[#E1E1E1] flex items-center justify-center transition-colors">
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)] text-[#07b75b]">
+              <svg class="w-full h-full" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
+                <path d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z" />
+              </svg>
+            </div>
+          </div>
+        </div>
+
+        <!-- 朋友圈图标（Aperture 风格） -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          title="朋友圈"
+          @click="goSns"
+        >
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="isSnsRoute ? 'text-[#07b75b]' : 'text-[#5d5d5d]'">
+              <svg
+                class="w-full h-full"
+                viewBox="0 0 24 24"
+                fill="none"
+                stroke="currentColor"
+                stroke-width="1.5"
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                aria-hidden="true"
+              >
+                <circle cx="12" cy="12" r="10" />
+                <line x1="14.31" y1="8" x2="20.05" y2="17.94" />
+                <line x1="9.69" y1="8" x2="21.17" y2="8" />
+                <line x1="7.38" y1="12" x2="13.12" y2="2.06" />
+                <line x1="9.69" y1="16" x2="3.95" y2="6.06" />
+                <line x1="14.31" y1="16" x2="2.83" y2="16" />
+                <line x1="16.62" y1="12" x2="10.88" y2="21.94" />
+              </svg>
+            </div>
           </div>
         </div>
         
         <!-- 隐私模式按钮 -->
         <div
-          class="w-16 h-12 flex items-center justify-center cursor-pointer transition-colors"
-          :class="privacyMode ? 'text-[#03C160]' : 'text-gray-500 hover:text-gray-700'"
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
           @click="privacyMode = !privacyMode"
           :title="privacyMode ? '关闭隐私模式' : '开启隐私模式'"
         >
-          <svg class="w-6 h-6" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
-            <path v-if="privacyMode" stroke-linecap="round" stroke-linejoin="round" d="M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 10-4.243-4.243m4.242 4.242L9.88 9.88" />
-            <path v-else stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 010-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178z" />
-            <circle v-if="!privacyMode" cx="12" cy="12" r="3" />
-          </svg>
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="privacyMode ? 'text-[#07b75b]' : 'text-[#5d5d5d]'" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path v-if="privacyMode" stroke-linecap="round" stroke-linejoin="round" d="M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 10-4.243-4.243m4.242 4.242L9.88 9.88" />
+              <path v-else stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 010-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178z" />
+              <circle v-if="!privacyMode" cx="12" cy="12" r="3" />
+            </svg>
+          </div>
         </div>
 
         <!-- 设置按钮（仅桌面端） -->
         <div
           v-if="isDesktopEnv"
-          class="w-16 h-12 flex items-center justify-center cursor-pointer transition-colors text-gray-500 hover:text-gray-700"
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
           @click="openDesktopSettings"
           title="设置"
         >
-          <svg class="w-6 h-6" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
-            <path
-              stroke-linecap="round"
-              stroke-linejoin="round"
-              d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
-            />
-            <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
-          </svg>
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]">
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)] text-[#5d5d5d]" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
+              />
+              <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+            </svg>
+          </div>
         </div>
       </div>
     </div>
@@ -1714,6 +1767,7 @@ useHead({
 })
 
 const route = useRoute()
+const isSnsRoute = computed(() => route.path?.startsWith('/sns'))
 
 const routeUsername = computed(() => {
   const raw = route.params.username
@@ -1729,6 +1783,24 @@ const selectedContact = ref(null)
 
 // 隐私模式
 const privacyMode = ref(false)
+const PRIVACY_MODE_KEY = 'ui.privacy_mode'
+
+onMounted(() => {
+  if (!process.client) return
+  try {
+    privacyMode.value = localStorage.getItem(PRIVACY_MODE_KEY) === '1'
+  } catch {}
+})
+
+watch(
+  () => privacyMode.value,
+  (v) => {
+    if (!process.client) return
+    try {
+      localStorage.setItem(PRIVACY_MODE_KEY, v ? '1' : '0')
+    } catch {}
+  }
+)
 
 // 桌面端设置（仅 Electron 环境可见）
 const isDesktopEnv = ref(false)
@@ -1880,6 +1952,18 @@ const selectedAccount = ref(null)
 
 const availableAccounts = ref([])
 
+const sidebarMediaBase = process.client ? 'http://localhost:8000' : ''
+
+const selfAvatarUrl = computed(() => {
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return ''
+  return `${sidebarMediaBase}/api/chat/avatar?account=${encodeURIComponent(acc)}&username=${encodeURIComponent(acc)}`
+})
+
+const goSns = async () => {
+  await navigateTo('/sns')
+}
+
 // 实时更新（WCDB DLL + db_storage watcher）
 const realtimeEnabled = ref(false)
 const realtimeAvailable = ref(false)
diff --git a/frontend/pages/sns.vue b/frontend/pages/sns.vue
new file mode 100644
index 0000000..a753e3e
--- /dev/null
+++ b/frontend/pages/sns.vue
@@ -0,0 +1,1092 @@
+<template>
+  <div class="h-screen flex overflow-hidden" style="background-color: #EDEDED">
+    <!-- 左侧边栏 -->
+    <div class="border-r border-gray-200 flex flex-col" style="background-color: #e8e7e7; width: 60px; min-width: 60px; max-width: 60px">
+      <div class="flex-1 flex flex-col justify-start pt-0 gap-0">
+        <!-- 头像（类似微信侧边栏） -->
+        <div class="w-full h-[60px] flex items-center justify-center">
+          <div class="w-[40px] h-[40px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0">
+            <img v-if="selfAvatarUrl" :src="selfAvatarUrl" alt="avatar" class="w-full h-full object-cover" />
+            <div
+              v-else
+              class="w-full h-full flex items-center justify-center text-white text-xs font-bold"
+              style="background-color: #4B5563"
+            >
+              我
+            </div>
+          </div>
+        </div>
+
+        <!-- 聊天图标 -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          title="聊天"
+          @click="goChat"
+        >
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="isChatRoute ? 'text-[#07b75b]' : 'text-[#5d5d5d]'">
+              <svg class="w-full h-full" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
+                <path
+                  d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z"
+                />
+              </svg>
+            </div>
+          </div>
+        </div>
+
+        <!-- 朋友圈图标（Aperture 风格） -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          title="朋友圈"
+          @click="goSns"
+        >
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="isSnsRoute ? 'text-[#07b75b]' : 'text-[#5d5d5d]'">
+              <svg
+                class="w-full h-full"
+                viewBox="0 0 24 24"
+                fill="none"
+                stroke="currentColor"
+                stroke-width="1.5"
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                aria-hidden="true"
+              >
+                <circle cx="12" cy="12" r="10" />
+                <line x1="14.31" y1="8" x2="20.05" y2="17.94" />
+                <line x1="9.69" y1="8" x2="21.17" y2="8" />
+                <line x1="7.38" y1="12" x2="13.12" y2="2.06" />
+                <line x1="9.69" y1="16" x2="3.95" y2="6.06" />
+                <line x1="14.31" y1="16" x2="2.83" y2="16" />
+                <line x1="16.62" y1="12" x2="10.88" y2="21.94" />
+              </svg>
+            </div>
+          </div>
+        </div>
+
+        <!-- 隐私模式按钮 -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          @click="privacyMode = !privacyMode"
+          :title="privacyMode ? '关闭隐私模式' : '开启隐私模式'"
+        >
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="privacyMode ? 'text-[#07b75b]' : 'text-[#5d5d5d]'" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path v-if="privacyMode" stroke-linecap="round" stroke-linejoin="round" d="M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 10-4.243-4.243m4.242 4.242L9.88 9.88" />
+              <path v-else stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 010-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178z" />
+              <circle v-if="!privacyMode" cx="12" cy="12" r="3" />
+            </svg>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- 右侧朋友圈区域 -->
+    <div class="flex-1 flex flex-col min-h-0" style="background-color: #EDEDED">
+      <!-- 桌面端标题栏放在内容区（与聊天页一致） -->
+      <DesktopTitleBar />
+
+	      <div class="flex-1 overflow-auto min-h-0">
+	        <div class="max-w-2xl mx-auto px-4 py-4">
+	          <div v-if="error" class="text-sm text-red-500 whitespace-pre-wrap py-2">{{ error }}</div>
+	          <div v-else-if="isLoading && posts.length === 0" class="text-sm text-gray-500 py-2">加载中…</div>
+	          <div v-else-if="posts.length === 0" class="text-sm text-gray-500 py-2">暂无朋友圈数据</div>
+
+	          <!-- 图片匹配说明（实验中，不代表最终效果） -->
+	          <div v-if="!error" class="mb-3 rounded border border-amber-200 bg-amber-50 px-3 py-2 text-xs text-amber-900">
+	            <div class="font-medium">图片匹配说明（实验中）</div>
+	            <div class="mt-1 leading-5">
+	              当前优先尝试从本地缓存（`cache/YYYY-MM/Sns/Img`）中解密读取图片，并结合动态元信息做匹配：
+	              若能拿到 totalSize（文件大小）会优先在候选中按“尺寸一致 + 文件大小最接近（时间作为次要参考）”挑选；若缺失，则回退到“时间接近度 + 图片尺寸 + 同尺寸顺序(N)”的启发式规则。
+	              该算法可能误判，不代表最终效果；若出现错图/无法查看，请点击图片进入预览，在“候选匹配”里手动选择。
+	              你的选择会保存在本机，下次会自动使用；即使已选择，仍会持续显示候选供再次切换。
+	            </div>
+	            <label class="mt-2 flex items-start gap-2 select-none">
+	              <input v-model="snsAvoidOtherPicked" type="checkbox" class="mt-[2px]" />
+	              <span class="leading-5">
+	                自动匹配时，避开已被你手动指定到其他动态的图片（降低重复率；仅对“手动选择过”的图片生效）
+	              </span>
+	            </label>
+	          </div>
+
+	          <div v-for="post in posts" :key="post.id" class="bg-white rounded-sm px-4 py-4 mb-3">
+	            <div class="flex items-start gap-3" @contextmenu.prevent="openPostContextMenu($event, post)">
+              <div class="w-9 h-9 rounded-md overflow-hidden bg-gray-300 flex-shrink-0" :class="{ 'privacy-blur': privacyMode }">
+                <img
+                  v-if="postAvatarUrl(post.username)"
+                  :src="postAvatarUrl(post.username)"
+                  :alt="post.displayName || post.username"
+                  class="w-full h-full object-cover"
+                  referrerpolicy="no-referrer"
+                />
+                <div
+                  v-else
+                  class="w-full h-full flex items-center justify-center text-white text-xs font-bold"
+                  style="background-color: #4B5563"
+                >
+                  {{ (post.displayName || post.username || '友').charAt(0) }}
+                </div>
+              </div>
+
+              <div class="flex-1 min-w-0">
+                <div class="text-sm font-medium leading-5 text-[#576b95]" :class="{ 'privacy-blur': privacyMode }">
+                  {{ post.displayName || post.username }}
+                </div>
+
+                <div
+                  v-if="post.contentDesc"
+                  class="mt-1 text-sm text-gray-900 leading-6 whitespace-pre-wrap break-words"
+                  :class="{ 'privacy-blur': privacyMode }"
+                >
+                  {{ post.contentDesc }}
+                </div>
+
+                <div v-if="post.media && post.media.length > 0" class="mt-2" :class="{ 'privacy-blur': privacyMode }">
+                  <div v-if="post.media.length === 1" class="max-w-[360px]">
+                    <div
+                      v-if="!hasMediaError(post.id, 0) && getMediaThumbSrc(post, post.media[0], 0)"
+                      class="inline-block cursor-pointer relative"
+                      @click.stop="onMediaClick(post, post.media[0], 0)"
+                    >
+                      <img
+                        :src="getMediaThumbSrc(post, post.media[0], 0)"
+                        class="rounded-sm max-h-[360px] object-cover"
+                        alt=""
+                        loading="lazy"
+                        referrerpolicy="no-referrer"
+                        @error="onMediaError(post.id, 0)"
+                      />
+                      <div
+                        v-if="Number(post.media[0]?.type || 0) === 6"
+                        class="absolute inset-0 flex items-center justify-center pointer-events-none"
+                      >
+                        <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
+                          <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+                        </div>
+                      </div>
+                    </div>
+                    <div
+                      v-else
+                      class="w-[240px] h-[180px] rounded-sm bg-gray-100 border border-gray-200 flex items-center justify-center text-xs text-gray-400"
+                      title="图片加载失败"
+                      @click.stop="onMediaClick(post, post.media[0], 0)"
+                      style="cursor: pointer;"
+                    >
+                      图片加载失败
+                    </div>
+                  </div>
+
+                  <div v-else class="grid grid-cols-3 gap-1 max-w-[360px]">
+                    <div
+                      v-for="(m, idx) in post.media.slice(0, 9)"
+                      :key="idx"
+                      class="w-[116px] h-[116px] rounded-[2px] overflow-hidden bg-gray-100 border border-gray-200 flex items-center justify-center cursor-pointer relative"
+                      @click.stop="onMediaClick(post, m, idx)"
+                    >
+                      <img
+                        v-if="!hasMediaError(post.id, idx) && getMediaThumbSrc(post, m, idx)"
+                        :src="getMediaThumbSrc(post, m, idx)"
+                        class="w-full h-full object-cover"
+                        alt=""
+                        loading="lazy"
+                        referrerpolicy="no-referrer"
+                        @error="onMediaError(post.id, idx)"
+                      />
+                      <span v-else class="text-[10px] text-gray-400">图片失败</span>
+
+                      <!-- 视频缩略图的播放提示 -->
+                      <div v-if="Number(m?.type || 0) === 6" class="absolute inset-0 flex items-center justify-center pointer-events-none">
+                        <div class="w-10 h-10 rounded-full bg-black/45 flex items-center justify-center">
+                          <svg class="w-5 h-5 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+                        </div>
+                      </div>
+                    </div>
+                  </div>
+                </div>
+
+                <div v-if="post.location" class="mt-2 text-xs text-[#576b95] truncate" :class="{ 'privacy-blur': privacyMode }">
+                  {{ post.location }}
+                </div>
+
+                <div class="mt-2 flex items-center justify-between">
+                  <span class="text-xs text-gray-400" :class="{ 'privacy-blur': privacyMode }">{{ formatRelativeTime(post.createTime) }}</span>
+                </div>
+
+	                <!-- 点赞/评论（参考 WeFlow 展示） -->
+	                <div
+	                  v-if="(post.likes && post.likes.length > 0) || (post.comments && post.comments.length > 0)"
+	                  class="mt-2 bg-gray-100 rounded-sm px-2 py-1"
+	                >
+	                  <div v-if="post.likes && post.likes.length > 0" class="flex items-start gap-1 text-xs text-[#576b95] leading-5">
+	                    <svg
+	                      xmlns="http://www.w3.org/2000/svg"
+	                      width="14"
+	                      height="14"
+	                      class="mt-[3px] mr-[10px] flex-shrink-0 opacity-80"
+	                      viewBox="0 0 24 24"
+	                      fill="none"
+	                      stroke="currentColor"
+	                      stroke-width="2"
+	                      stroke-linecap="round"
+	                      stroke-linejoin="round"
+	                    >
+	                      <path d="M19 14c1.49-1.46 3-3.21 3-5.5A5.5 5.5 0 0 0 16.5 3c-1.76 0-3 1-4.5 2.5C10.5 4 9.26 3 7.5 3A5.5 5.5 0 0 0 2 8.5c0 2.3 1.5 4.05 3 5.5l7 7Z" />
+	                    </svg>
+	                    <div class="break-words" :class="{ 'privacy-blur': privacyMode }">
+	                      {{ formatLikes(post.likes) }}
+	                    </div>
+	                  </div>
+
+	                  <div v-if="post.likes && post.likes.length > 0 && post.comments && post.comments.length > 0" class="my-1 border-t border-gray-200"></div>
+
+	                  <div v-if="post.comments && post.comments.length > 0" class="space-y-1">
+	                    <div v-for="(c, idx) in post.comments" :key="c?.id || idx" class="text-xs leading-5 break-words">
+	                      <span class="font-medium text-[#576b95]" :class="{ 'privacy-blur': privacyMode }">
+	                        {{ cleanLikeName(c?.nickname || c?.displayName || c?.username || '') || '未知' }}
+	                      </span>
+	                      <template v-if="cleanLikeName(c?.refNickname || c?.refUsername || c?.refUserName || '')">
+	                        <span class="mx-1 text-gray-500">回复</span>
+	                        <span class="font-medium text-[#576b95]" :class="{ 'privacy-blur': privacyMode }">
+	                          {{ cleanLikeName(c?.refNickname || c?.refUsername || c?.refUserName || '') }}
+	                        </span>
+	                      </template>
+	                      <span class="text-gray-900" :class="{ 'privacy-blur': privacyMode }">: {{ String(c?.content || '').trim() }}</span>
+	                    </div>
+	                  </div>
+	                </div>
+              </div>
+            </div>
+          </div>
+
+          <div v-if="hasMore" class="py-2">
+            <button
+              type="button"
+              class="w-full text-sm text-gray-600 py-2 rounded bg-white hover:bg-gray-50 border border-gray-200"
+              :disabled="isLoading"
+              @click="loadPosts({ reset: false })"
+            >
+              {{ isLoading ? '加载中…' : '加载更多' }}
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- 右键菜单（复制 JSON 方便定位问题） -->
+    <div
+      v-if="contextMenu.visible"
+      class="fixed z-50 bg-white border border-gray-200 rounded-md shadow-lg text-sm"
+      :style="{ left: contextMenu.x + 'px', top: contextMenu.y + 'px' }"
+      @click.stop
+    >
+      <button class="block w-full text-left px-3 py-2 hover:bg-gray-100" type="button" @click="onCopyPostTextClick">
+        复制文案
+      </button>
+      <button class="block w-full text-left px-3 py-2 hover:bg-gray-100" type="button" @click="onCopyPostJsonClick">
+        复制朋友圈 JSON
+      </button>
+    </div>
+
+	    <!-- 图片预览弹窗 + 候选匹配选择 -->
+	    <div
+	      v-if="previewCtx"
+	      class="fixed inset-0 z-[60] bg-black/90 flex items-center justify-center"
+	      @click="closeImagePreview"
+	    >
+	      <div class="relative max-w-[92vw] max-h-[92vh] flex flex-col items-center" @click.stop>
+	        <img :src="previewSrc" alt="预览" class="max-w-[90vw] max-h-[70vh] object-contain" />
+
+	        <!-- 候选匹配面板（仅在本地缓存匹配时有意义） -->
+	        <div class="mt-3 w-full max-w-[90vw] rounded bg-black/35 text-white text-xs px-3 py-2">
+	          <div class="flex items-center justify-between gap-2">
+	            <div class="truncate">
+	              候选匹配：
+	              <span v-if="previewCandidates.loading">加载中…</span>
+	              <span v-else-if="previewCandidates.count > 0">共 {{ previewCandidates.count }} 个</span>
+	              <span v-else>未找到本地候选（可能仅能显示占位图）</span>
+	              <span v-if="previewEffectiveIdx != null" class="ml-2 text-white/80">当前：#{{ Number(previewEffectiveIdx) + 1 }}</span>
+	              <span v-if="previewHasUserOverride" class="ml-2 text-emerald-200">(已保存)</span>
+	            </div>
+	            <div class="flex items-center gap-2 flex-shrink-0">
+	              <button
+	                type="button"
+	                class="px-2 py-1 rounded bg-white/10 hover:bg-white/20 transition-colors"
+	                @click="toggleCandidatePanel"
+	              >
+	                {{ previewCandidatesOpen ? '收起' : '展开' }}
+	              </button>
+	              <button
+	                v-if="previewHasUserOverride"
+	                type="button"
+	                class="px-2 py-1 rounded bg-white/10 hover:bg-white/20 transition-colors"
+	                @click="clearUserOverrideForPreview"
+	              >
+	                恢复自动
+	              </button>
+	            </div>
+	          </div>
+
+	          <div v-if="previewCandidates.error" class="mt-2 text-red-200 whitespace-pre-wrap">
+	            {{ previewCandidates.error }}
+	          </div>
+
+	          <div v-if="previewCandidatesOpen && previewCandidates.count > 0" class="mt-2">
+	            <div class="flex gap-2 overflow-x-auto pb-1">
+	              <button
+	                v-for="cand in previewCandidates.items"
+	                :key="cand.idx"
+	                type="button"
+	                class="flex-shrink-0 w-24"
+	                @click="selectCandidateForPreview(cand.idx)"
+	              >
+	                <div class="w-24 h-24 rounded bg-black/20 overflow-hidden border border-white/10">
+	                  <img :src="getPreviewCandidateSrc(cand.idx)" class="w-full h-full object-cover" alt="" />
+	                </div>
+	                <div class="mt-1 text-[11px] text-white/80">#{{ Number(cand.idx) + 1 }}</div>
+	              </button>
+	            </div>
+
+	            <div v-if="previewCandidates.hasMore" class="mt-2">
+	              <button
+	                type="button"
+	                class="px-2 py-1 rounded bg-white/10 hover:bg-white/20 transition-colors"
+	                :disabled="previewCandidates.loadingMore"
+	                @click="loadMorePreviewCandidates"
+	              >
+	                {{ previewCandidates.loadingMore ? '加载中…' : '加载更多候选' }}
+	              </button>
+	            </div>
+	          </div>
+	        </div>
+	      </div>
+
+	      <button
+	        class="absolute top-4 right-4 text-white/80 hover:text-white p-2 rounded-full bg-black/30 hover:bg-black/50 transition-colors"
+	        @click.stop="closeImagePreview"
+	      >
+	        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+	          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+	        </svg>
+	      </button>
+	    </div>
+	  </div>
+	</template>
+
+<script setup>
+useHead({ title: '朋友圈 - 微信数据分析助手' })
+
+const route = useRoute()
+
+const isChatRoute = computed(() => route.path?.startsWith('/chat'))
+const isSnsRoute = computed(() => route.path?.startsWith('/sns'))
+
+// 隐私模式（聊天/朋友圈共用本地开关）
+const PRIVACY_MODE_KEY = 'ui.privacy_mode'
+const privacyMode = ref(false)
+
+onMounted(() => {
+  if (!process.client) return
+  try {
+    privacyMode.value = localStorage.getItem(PRIVACY_MODE_KEY) === '1'
+  } catch {}
+})
+
+watch(
+  () => privacyMode.value,
+  (v) => {
+    if (!process.client) return
+    try {
+      localStorage.setItem(PRIVACY_MODE_KEY, v ? '1' : '0')
+    } catch {}
+  }
+)
+
+const api = useApi()
+const selectedAccount = ref(null)
+const availableAccounts = ref([])
+
+const posts = ref([])
+const hasMore = ref(true)
+const isLoading = ref(false)
+const error = ref('')
+
+const pageSize = 20
+
+const mediaBase = process.client ? 'http://localhost:8000' : ''
+
+// User overrides for SNS image matching (account-local, stored in localStorage).
+const SNS_MEDIA_OVERRIDE_PREFIX = 'sns_media_override:v1:'
+const SNS_MEDIA_OVERRIDE_REV_PREFIX = 'sns_media_override_rev:v1:'
+const snsMediaOverrides = ref({})
+const snsMediaOverrideRev = ref('0')
+
+const snsOverrideStorageKey = (account) => `${SNS_MEDIA_OVERRIDE_PREFIX}${String(account || '').trim()}`
+const snsOverrideRevStorageKey = (account) => `${SNS_MEDIA_OVERRIDE_REV_PREFIX}${String(account || '').trim()}`
+const snsOverrideMediaKey = (postId, idx) => `${String(postId || '')}:${String(Number(idx) || 0)}`
+
+const loadSnsMediaOverrides = () => {
+  if (!process.client) return
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) {
+    snsMediaOverrides.value = {}
+    snsMediaOverrideRev.value = '0'
+    return
+  }
+  try {
+    const raw = localStorage.getItem(snsOverrideStorageKey(acc))
+    const parsed = raw ? JSON.parse(raw) : {}
+    snsMediaOverrides.value = parsed && typeof parsed === 'object' ? parsed : {}
+  } catch {
+    snsMediaOverrides.value = {}
+  }
+  try {
+    const rev = localStorage.getItem(snsOverrideRevStorageKey(acc))
+    snsMediaOverrideRev.value = String(rev || '0')
+  } catch {
+    snsMediaOverrideRev.value = '0'
+  }
+}
+
+const saveSnsMediaOverrides = () => {
+  if (!process.client) return
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return
+  try {
+    localStorage.setItem(snsOverrideStorageKey(acc), JSON.stringify(snsMediaOverrides.value || {}))
+  } catch {}
+  try {
+    localStorage.setItem(snsOverrideRevStorageKey(acc), String(snsMediaOverrideRev.value || '0'))
+  } catch {}
+}
+
+// Settings: avoid auto-using an image that was manually pinned to another SNS post.
+const SNS_SNS_SETTINGS_PREFIX = 'sns_settings:v1:'
+const snsAvoidOtherPicked = ref(true)
+const snsAvoidOtherPickedStorageKey = (account) => `${SNS_SNS_SETTINGS_PREFIX}${String(account || '').trim()}:avoid_other_picked`
+
+const loadSnsSettings = () => {
+  if (!process.client) return
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return
+  try {
+    const raw = localStorage.getItem(snsAvoidOtherPickedStorageKey(acc))
+    if (raw == null || raw === '') return
+    snsAvoidOtherPicked.value = raw === '1' || raw === 'true'
+  } catch {}
+}
+
+const saveSnsSettings = () => {
+  if (!process.client) return
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return
+  try {
+    localStorage.setItem(snsAvoidOtherPickedStorageKey(acc), snsAvoidOtherPicked.value ? '1' : '0')
+  } catch {}
+}
+
+const syncSnsMediaPicksToBackend = async () => {
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return
+  try {
+    await api.saveSnsMediaPicks({ account: acc, picks: snsMediaOverrides.value || {} })
+  } catch {}
+}
+
+const getSnsMediaOverridePick = (postId, idx) => {
+  const key = snsOverrideMediaKey(postId, idx)
+  const v = snsMediaOverrides.value?.[key]
+  return String(v || '').trim()
+}
+
+const setSnsMediaOverridePick = (postId, idx, pick) => {
+  if (!process.client) return
+  const key = snsOverrideMediaKey(postId, idx)
+  const v = String(pick || '').trim()
+  if (!v) {
+    if (snsMediaOverrides.value && Object.prototype.hasOwnProperty.call(snsMediaOverrides.value, key)) {
+      delete snsMediaOverrides.value[key]
+    }
+  } else {
+    snsMediaOverrides.value[key] = v
+  }
+  saveSnsMediaOverrides()
+  // Keep backend in sync so it can apply duplicate-avoidance logic.
+  // Then bump `pv` so other auto-matched images reload using the updated picks.
+  void syncSnsMediaPicksToBackend().finally(() => {
+    snsMediaOverrideRev.value = String(Date.now())
+    saveSnsMediaOverrides()
+  })
+}
+
+// Track failed images per-post, per-index to render placeholders instead of broken <img>.
+const mediaErrors = ref({})
+
+const mediaErrorKey = (postId, idx) => `${String(postId || '')}:${String(idx || 0)}`
+const hasMediaError = (postId, idx) => !!mediaErrors.value[mediaErrorKey(postId, idx)]
+const onMediaError = (postId, idx) => {
+  mediaErrors.value[mediaErrorKey(postId, idx)] = true
+}
+
+// Right-click context menu (copy text / JSON) to help debug SNS parsing issues.
+const contextMenu = ref({ visible: false, x: 0, y: 0, post: null })
+
+const closeContextMenu = () => {
+  contextMenu.value = { visible: false, x: 0, y: 0, post: null }
+}
+
+const openPostContextMenu = (e, post) => {
+  if (!process.client) return
+  e?.preventDefault?.()
+  e?.stopPropagation?.()
+  contextMenu.value = {
+    visible: true,
+    x: e?.clientX ?? 0,
+    y: e?.clientY ?? 0,
+    post
+  }
+}
+
+const copyTextToClipboard = async (text) => {
+  if (!process.client) return false
+  if (typeof text !== 'string') return false
+
+  try {
+    await navigator.clipboard.writeText(text)
+    return true
+  } catch {}
+
+  try {
+    const el = document.createElement('textarea')
+    el.value = text
+    el.setAttribute('readonly', 'true')
+    el.style.position = 'fixed'
+    el.style.left = '-9999px'
+    el.style.top = '-9999px'
+    document.body.appendChild(el)
+    el.select()
+    const ok = document.execCommand('copy')
+    document.body.removeChild(el)
+    return ok
+  } catch {
+    return false
+  }
+}
+
+const onCopyPostTextClick = async () => {
+  if (!process.client) return
+  const post = contextMenu.value.post
+  if (!post) return
+
+  try {
+    const text = String(post?.contentDesc || '').trim()
+    if (!text) {
+      window.alert('该朋友圈没有可复制的文本')
+      return
+    }
+    const ok = await copyTextToClipboard(text)
+    if (!ok) window.alert('复制失败：无法写入剪贴板')
+  } catch (e) {
+    console.error('复制失败:', e)
+    window.alert('复制失败')
+  } finally {
+    closeContextMenu()
+  }
+}
+
+const onCopyPostJsonClick = async () => {
+  if (!process.client) return
+  const post = contextMenu.value.post
+  if (!post) return
+
+  try {
+    const raw = toRaw(post) || post
+    const json = JSON.stringify(raw, (_k, v) => (typeof v === 'bigint' ? v.toString() : v), 2)
+    const ok = await copyTextToClipboard(json)
+    if (!ok) window.alert('复制失败：无法写入剪贴板')
+  } catch (e) {
+    console.error('复制失败:', e)
+    window.alert('复制失败')
+  } finally {
+    closeContextMenu()
+  }
+}
+
+const selfAvatarUrl = computed(() => {
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return ''
+  return `${mediaBase}/api/chat/avatar?account=${encodeURIComponent(acc)}&username=${encodeURIComponent(acc)}`
+})
+
+const postAvatarUrl = (username) => {
+  const acc = String(selectedAccount.value || '').trim()
+  const u = String(username || '').trim()
+  if (!acc || !u) return ''
+  return `${mediaBase}/api/chat/avatar?account=${encodeURIComponent(acc)}&username=${encodeURIComponent(u)}`
+}
+
+const cleanLikeName = (v) => String(v ?? '').replace(/\u00A0/g, ' ').trim()
+const formatLikes = (likes) => {
+  const arr = Array.isArray(likes) ? likes : []
+  const names = arr.map(cleanLikeName).filter(Boolean)
+  return names.join('、')
+}
+
+const normalizeMediaUrl = (u) => {
+  const raw = String(u || '').trim()
+  if (!raw) return ''
+  if (!/^https?:\/\//i.test(raw)) return raw
+  try {
+    const host = new URL(raw).hostname.toLowerCase()
+    if (host.endsWith('.qpic.cn') || host.endsWith('.qlogo.cn')) {
+      return `${mediaBase}/api/chat/media/proxy_image?url=${encodeURIComponent(raw)}`
+    }
+  } catch {}
+  return raw
+}
+
+// WeFlow replaces http->https for SNS CDN URLs; do the same before proxying/fetching.
+const upgradeTencentHttps = (u) => {
+  const raw = String(u || '').trim()
+  if (!raw) return ''
+  if (!/^http:\/\//i.test(raw)) return raw
+  try {
+    const host = new URL(raw).hostname.toLowerCase()
+    if (host.endsWith('.qpic.cn') || host.endsWith('.qlogo.cn') || host.endsWith('.tc.qq.com')) {
+      return raw.replace(/^http:\/\//i, 'https://')
+    }
+  } catch {}
+  return raw
+}
+
+const normalizeHex32 = (value) => {
+  const raw = String(value ?? '').trim()
+  if (!raw) return ''
+  const hex = raw.replace(/[^0-9a-fA-F]/g, '').toLowerCase()
+  return hex.length >= 32 ? hex.slice(0, 32) : ''
+}
+
+const mediaSizeKey = (m) => {
+  const t = String(m?.type ?? '')
+  const w = String(m?.size?.width || m?.size?.w || '').trim()
+  const h = String(m?.size?.height || m?.size?.h || '').trim()
+  if (!w || !h) return ''
+  return `${t}:${w}x${h}`
+}
+
+// Our backend matches SNS cache images by width/height and then uses `idx` to
+// pick the N-th match. `idx` must be the index within the same size-group,
+// not the global media index in the post, otherwise images can shift.
+const mediaSizeGroupIndex = (post, m, idx) => {
+  const list = Array.isArray(post?.media) ? post.media : []
+  const key = mediaSizeKey(m)
+  const i0 = Number(idx) || 0
+  if (!key || i0 <= 0) return i0
+  let count = 0
+  for (let i = 0; i < i0; i++) {
+    if (mediaSizeKey(list[i]) === key) count++
+  }
+  return count
+}
+
+const getSnsMediaUrl = (post, m, idx, rawUrl) => {
+  const raw = upgradeTencentHttps(String(rawUrl || '').trim())
+  if (!raw) return ''
+  const rawLower = raw.toLowerCase()
+
+  // If backend already provides a local media endpoint, keep it as-is.
+  if (rawLower.startsWith('/api/') || rawLower.startsWith('blob:') || rawLower.startsWith('data:')) return raw
+
+  // For Moments images/thumbnails, prefer a backend endpoint that can decrypt local cache.
+  if (/^https?:\/\//i.test(raw)) {
+    try {
+      const host = new URL(raw).hostname.toLowerCase()
+      if (host.endsWith('.qpic.cn') || host.endsWith('.qlogo.cn') || host.endsWith('.tc.qq.com')) {
+        const acc = String(selectedAccount.value || '').trim()
+        const ct = String(post?.createTime || '').trim()
+        const w = String(m?.size?.width || m?.size?.w || '').trim()
+        const h = String(m?.size?.height || m?.size?.h || '').trim()
+        const ts = String(m?.size?.totalSize || m?.size?.total_size || m?.size?.total || '').trim()
+        const sizeIdx = mediaSizeGroupIndex(post, m, idx)
+        const pick = getSnsMediaOverridePick(post?.id, idx)
+        let md5 = normalizeHex32(m?.urlAttrs?.md5 || m?.thumbAttrs?.md5 || m?.urlAttrs?.MD5 || m?.thumbAttrs?.MD5)
+        if (!md5) {
+          const match = /[?&]md5=([0-9a-fA-F]{16,32})/.exec(raw)
+          if (match?.[1]) md5 = normalizeHex32(match[1])
+        }
+        const parts = new URLSearchParams()
+        if (acc) parts.set('account', acc)
+        if (ct) parts.set('create_time', ct)
+        if (w) parts.set('width', w)
+        if (h) parts.set('height', h)
+        if (/^\d+$/.test(ts)) parts.set('total_size', ts)
+        parts.set('idx', String(Number(sizeIdx) || 0))
+        if (pick) parts.set('pick', pick)
+        if (!pick && snsAvoidOtherPicked.value) {
+          const pid = String(post?.id || '').trim()
+          if (pid) parts.set('post_id', pid)
+          parts.set('avoid_picked', '1')
+          parts.set('pv', String(snsMediaOverrideRev.value || '0'))
+        }
+        if (md5) parts.set('md5', md5)
+        // Bump this when changing backend matching logic to avoid stale cached wrong images.
+        parts.set('v', '7')
+        parts.set('url', raw)
+        return `${mediaBase}/api/sns/media?${parts.toString()}`
+      }
+    } catch {}
+  }
+
+  return normalizeMediaUrl(raw)
+}
+
+const getMediaThumbSrc = (post, m, idx = 0) => {
+  return getSnsMediaUrl(post, m, idx, m?.thumb || m?.url)
+}
+
+const getMediaPreviewSrc = (post, m, idx = 0) => {
+  return getSnsMediaUrl(post, m, idx, m?.url || m?.thumb)
+}
+
+// 图片预览 + 候选匹配选择
+const previewCtx = ref(null) // { post, media, idx }
+const previewCandidatesOpen = ref(false)
+const previewCandidates = reactive({
+  loading: false,
+  loadingMore: false,
+  error: '',
+  items: [],
+  count: 0,
+  hasMore: false
+})
+
+const resetPreviewCandidates = () => {
+  previewCandidates.loading = false
+  previewCandidates.loadingMore = false
+  previewCandidates.error = ''
+  previewCandidates.items = []
+  previewCandidates.count = 0
+  previewCandidates.hasMore = false
+}
+
+const previewSrc = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return ''
+  return getMediaPreviewSrc(ctx.post, ctx.media, ctx.idx)
+})
+
+const previewHasUserOverride = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return false
+  return !!getSnsMediaOverridePick(ctx.post?.id, ctx.idx)
+})
+
+const previewEffectiveIdx = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return null
+  const pick = getSnsMediaOverridePick(ctx.post?.id, ctx.idx)
+  if (pick) {
+    const found = (previewCandidates.items || []).find((c) => String(c?.key || '') === pick)
+    if (found) return Number(found.idx)
+    return null
+  }
+  const baseIdx = mediaSizeGroupIndex(ctx.post, ctx.media, ctx.idx)
+  if (!snsAvoidOtherPicked.value) return baseIdx
+  const curPid = String(ctx.post?.id || '').trim()
+  if (!curPid) return baseIdx
+
+  // Mirror backend logic: skip candidates that were manually pinned to other posts.
+  const reserved = new Set()
+  try {
+    for (const [k, v] of Object.entries(snsMediaOverrides.value || {})) {
+      const pid = String(k || '').split(':', 1)[0].trim()
+      if (!pid || pid === curPid) continue
+      const key = String(v || '').trim()
+      if (key) reserved.add(key)
+    }
+  } catch {}
+
+  const items = Array.isArray(previewCandidates.items) ? [...previewCandidates.items] : []
+  items.sort((a, b) => Number(a?.idx || 0) - Number(b?.idx || 0))
+  for (const c of items) {
+    const i = Number(c?.idx)
+    const key = String(c?.key || '').trim()
+    if (!Number.isFinite(i) || i < baseIdx) continue
+    if (!key) continue
+    if (!reserved.has(key)) return i
+  }
+  return baseIdx
+})
+
+const toggleCandidatePanel = () => {
+  previewCandidatesOpen.value = !previewCandidatesOpen.value
+}
+
+const loadPreviewCandidates = async ({ reset }) => {
+  const ctx = previewCtx.value
+  if (!ctx) return
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return
+
+  const toInt = (v) => Number.parseInt(String(v || '').trim(), 10) || 0
+  const w = toInt(ctx.media?.size?.width || ctx.media?.size?.w)
+  const h = toInt(ctx.media?.size?.height || ctx.media?.size?.h)
+
+  // Without dimensions, local matching is too noisy; keep it empty.
+  if (w <= 0 || h <= 0) {
+    resetPreviewCandidates()
+    return
+  }
+
+  const limit = 24
+  const offset = reset ? 0 : (previewCandidates.items?.length || 0)
+
+  if (reset) {
+    resetPreviewCandidates()
+    previewCandidates.loading = true
+  } else {
+    previewCandidates.loadingMore = true
+  }
+  previewCandidates.error = ''
+
+  try {
+    const resp = await api.listSnsMediaCandidates({
+      account: acc,
+      create_time: Number(ctx.post?.createTime || 0),
+      width: w,
+      height: h,
+      limit,
+      offset
+    })
+    const items = Array.isArray(resp?.items) ? resp.items : []
+    previewCandidates.count = Number(resp?.count || 0)
+    previewCandidates.hasMore = !!resp?.hasMore
+    if (reset) {
+      previewCandidates.items = items
+    } else {
+      previewCandidates.items = [...(previewCandidates.items || []), ...items]
+    }
+  } catch (e) {
+    previewCandidates.error = e?.message || '加载候选失败'
+  } finally {
+    previewCandidates.loading = false
+    previewCandidates.loadingMore = false
+  }
+}
+
+const openImagePreview = async (post, m, idx = 0) => {
+  if (!process.client) return
+  previewCtx.value = { post, media: m, idx: Number(idx) || 0 }
+  previewCandidatesOpen.value = false
+  resetPreviewCandidates()
+  document.body.style.overflow = 'hidden'
+  // Load the first page so we can show the candidate count in the header.
+  await loadPreviewCandidates({ reset: true })
+}
+
+const closeImagePreview = () => {
+  if (!process.client) return
+  previewCtx.value = null
+  previewCandidatesOpen.value = false
+  resetPreviewCandidates()
+  document.body.style.overflow = ''
+}
+
+const getPreviewCandidateSrc = (candIdx) => {
+  const ctx = previewCtx.value
+  const acc = String(selectedAccount.value || '').trim()
+  if (!ctx || !acc) return ''
+
+  const idxNum = Number(candIdx)
+  const cand = (previewCandidates.items || []).find((c) => Number(c?.idx) === idxNum)
+  const key = String(cand?.key || '').trim()
+  if (!key) return ''
+
+  const parts = new URLSearchParams()
+  parts.set('account', acc)
+  parts.set('pick', key)
+  const ct = String(ctx.post?.createTime || '').trim()
+  if (ct) parts.set('create_time', ct)
+  parts.set('v', '7')
+  return `${mediaBase}/api/sns/media?${parts.toString()}`
+}
+
+const selectCandidateForPreview = (candIdx) => {
+  const ctx = previewCtx.value
+  if (!ctx) return
+  const idxNum = Number(candIdx)
+  const cand = (previewCandidates.items || []).find((c) => Number(c?.idx) === idxNum)
+  const key = String(cand?.key || '').trim()
+  if (!key) return
+  setSnsMediaOverridePick(ctx.post?.id, ctx.idx, key)
+  // Allow <img> to retry after user switches candidates.
+  try {
+    delete mediaErrors.value[mediaErrorKey(ctx.post?.id, ctx.idx)]
+  } catch {}
+}
+
+const clearUserOverrideForPreview = () => {
+  const ctx = previewCtx.value
+  if (!ctx) return
+  setSnsMediaOverridePick(ctx.post?.id, ctx.idx, '')
+  try {
+    delete mediaErrors.value[mediaErrorKey(ctx.post?.id, ctx.idx)]
+  } catch {}
+}
+
+const loadMorePreviewCandidates = async () => {
+  if (previewCandidates.loading || previewCandidates.loadingMore) return
+  if (!previewCandidates.hasMore) return
+  await loadPreviewCandidates({ reset: false })
+}
+
+const onMediaClick = (post, m, idx = 0) => {
+  if (!process.client) return
+  const mt = Number(m?.type || 0)
+  // 视频：打开视频链接（新窗口），图片：打开预览
+  if (mt === 6) {
+    const u = String(m?.url || '').trim()
+     if (u) window.open(u, '_blank', 'noopener,noreferrer')
+     return
+   }
+  // Open preview overlay; it also loads local candidates for manual selection.
+  void openImagePreview(post, m, idx)
+}
+
+const formatRelativeTime = (tsSeconds) => {
+  const t = Number(tsSeconds || 0)
+  if (!t) return ''
+  const now = Date.now()
+  const diff = Math.max(0, Math.floor((now - t * 1000) / 1000))
+  if (diff < 60) return '刚刚'
+  const mins = Math.floor(diff / 60)
+  if (mins < 60) return `${mins}分钟前`
+  const hours = Math.floor(mins / 60)
+  if (hours < 24) return `${hours}小时前`
+  const days = Math.floor(hours / 24)
+  if (days < 30) return `${days}天前`
+  const months = Math.floor(days / 30)
+  if (months < 12) return `${months}个月前`
+  const years = Math.floor(months / 12)
+  return `${years}年前`
+}
+
+const loadAccounts = async () => {
+  error.value = ''
+  try {
+    const resp = await api.listChatAccounts()
+    const accounts = resp?.accounts || []
+    availableAccounts.value = accounts
+    selectedAccount.value = selectedAccount.value || resp?.default_account || accounts[0] || null
+  } catch (e) {
+    error.value = e?.message || '加载账号失败'
+    availableAccounts.value = []
+    selectedAccount.value = null
+  }
+}
+
+const loadPosts = async ({ reset }) => {
+  if (!selectedAccount.value) return
+  if (isLoading.value) return
+  error.value = ''
+  isLoading.value = true
+  try {
+    const offset = reset ? 0 : posts.value.length
+    const resp = await api.listSnsTimeline({
+      account: selectedAccount.value,
+      limit: pageSize,
+      offset
+    })
+    const items = resp?.timeline || []
+    if (reset) {
+      posts.value = items
+    } else {
+      posts.value = [...posts.value, ...items]
+    }
+    hasMore.value = !!resp?.hasMore
+  } catch (e) {
+    error.value = e?.message || '加载朋友圈失败'
+  } finally {
+    isLoading.value = false
+  }
+}
+
+const goChat = async () => {
+  await navigateTo('/chat')
+}
+
+const goSns = async () => {
+  await navigateTo('/sns')
+}
+
+watch(
+  () => selectedAccount.value,
+  async (v, oldV) => {
+    if (v && v !== oldV) {
+      // Account switch: reload overrides and reset preview state.
+      loadSnsMediaOverrides()
+      loadSnsSettings()
+      void syncSnsMediaPicksToBackend()
+      if (previewCtx.value) closeImagePreview()
+      await loadPosts({ reset: true })
+    } else if (!v) {
+      snsMediaOverrides.value = {}
+    }
+  }
+)
+
+watch(
+  () => snsAvoidOtherPicked.value,
+  () => {
+    saveSnsSettings()
+  }
+)
+
+onMounted(async () => {
+  await loadAccounts()
+  loadSnsMediaOverrides()
+  loadSnsSettings()
+  void syncSnsMediaPicksToBackend()
+})
+
+const onGlobalClick = () => {
+  if (contextMenu.value.visible) closeContextMenu()
+}
+
+const onGlobalKeyDown = (e) => {
+  if (!process.client) return
+  if (String(e?.key || '') === 'Escape') {
+    if (previewCtx.value) closeImagePreview()
+    if (contextMenu.value.visible) closeContextMenu()
+  }
+}
+
+onMounted(() => {
+  if (!process.client) return
+  document.addEventListener('click', onGlobalClick)
+  document.addEventListener('keydown', onGlobalKeyDown)
+})
+
+onUnmounted(() => {
+  if (!process.client) return
+  document.removeEventListener('click', onGlobalClick)
+  document.removeEventListener('keydown', onGlobalKeyDown)
+})
+</script>
+
+<style scoped>
+/* 隐私模式模糊效果 */
+.privacy-blur {
+  filter: blur(9px);
+  transition: filter 0.2s ease;
+}
+
+.privacy-blur:hover {
+  filter: none;
+}
+</style>