diff --git a/frontend/src/components/DesktopLayout.vue b/frontend/src/components/DesktopLayout.vue
index 153b097..071e965 100644
--- a/frontend/src/components/DesktopLayout.vue
+++ b/frontend/src/components/DesktopLayout.vue
@@ -62,8 +62,7 @@ const roleLabel = computed(() => {
 })
 
 function cycleTheme() {
-  const next = themeStore.currentTheme === 'editorial' ? 'light' : 'editorial'
-  themeStore.setTheme(next)
+  themeStore.toggleMode()
 }
 </script>
 
@@ -108,11 +107,11 @@ function cycleTheme() {
           </svg>
         </button>
         <div class="topbar-actions">
-          <button class="topbar-btn" @click="cycleTheme" :title="'切换至' + themeLabels[themeStore.currentTheme === 'editorial' ? 'light' : 'editorial']">
+          <button class="topbar-btn" @click="cycleTheme" :title="'切换至' + (themeStore.mode === 'light' ? '深色模式' : '亮色模式')">
             <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-              <circle v-if="themeStore.currentTheme === 'editorial'" cx="12" cy="12" r="5"></circle>
-              <path v-if="themeStore.currentTheme === 'editorial'" d="M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42"></path>
-              <path v-if="themeStore.currentTheme === 'light'" d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
+              <path v-if="themeStore.mode === 'light'" d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
+              <circle v-if="themeStore.mode === 'dark'" cx="12" cy="12" r="5"></circle>
+              <path v-if="themeStore.mode === 'dark'" d="M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42"></path>
             </svg>
           </button>
           <button class="topbar-btn" @click="router.push('/m')" title="移动端">
diff --git a/frontend/src/stores/theme.ts b/frontend/src/stores/theme.ts
index 430914c..cfd60f1 100644
--- a/frontend/src/stores/theme.ts
+++ b/frontend/src/stores/theme.ts
@@ -1,30 +1,61 @@
 import { defineStore } from 'pinia'
-import { ref } from 'vue'
+import { ref, computed } from 'vue'
 
-export type Theme = 'editorial' | 'light'
+export type Theme = 'editorial' | 'light' | 'minimal-dark' | 'tech-dark'
+type Mode = 'light' | 'dark'
 
 export const themeLabels: Record<Theme, string> = {
   editorial: '编辑风',
   light: '极简亮色',
+  'minimal-dark': '极简深色',
+  'tech-dark': '科技深色',
 }
 
-export const useThemeStore = defineStore('theme', () => {
-  const currentTheme = ref<Theme>(
-    (localStorage.getItem('theme') as Theme) || 'editorial'
-  )
+export const lightThemes: Theme[] = ['editorial', 'light']
+export const darkThemes: Theme[] = ['minimal-dark', 'tech-dark']
 
-  function applyTheme(theme: Theme) {
+export const useThemeStore = defineStore('theme', () => {
+  const mode = ref<Mode>((localStorage.getItem('theme-mode') as Mode) || 'light')
+  const lightTheme = ref<Theme>((localStorage.getItem('theme-light') as Theme) || 'editorial')
+  const darkTheme = ref<Theme>((localStorage.getItem('theme-dark') as Theme) || 'tech-dark')
+
+  const effectiveTheme = computed<Theme>(() => {
+    return mode.value === 'light' ? lightTheme.value : darkTheme.value
+  })
+
+  function applyTheme(theme: Theme, isDark: boolean) {
     document.documentElement.setAttribute('data-theme', theme)
+    if (isDark) {
+      document.documentElement.classList.add('dark')
+    } else {
+      document.documentElement.classList.remove('dark')
+    }
   }
 
-  function setTheme(theme: Theme) {
-    currentTheme.value = theme
-    localStorage.setItem('theme', theme)
-    applyTheme(theme)
+  function apply() {
+    applyTheme(effectiveTheme.value, mode.value === 'dark')
+  }
+
+  function setLightTheme(theme: Theme) {
+    lightTheme.value = theme
+    localStorage.setItem('theme-light', theme)
+    if (mode.value === 'light') apply()
+  }
+
+  function setDarkTheme(theme: Theme) {
+    darkTheme.value = theme
+    localStorage.setItem('theme-dark', theme)
+    if (mode.value === 'dark') apply()
+  }
+
+  function toggleMode() {
+    mode.value = mode.value === 'light' ? 'dark' : 'light'
+    localStorage.setItem('theme-mode', mode.value)
+    apply()
   }
 
   // Apply on init
-  applyTheme(currentTheme.value)
+  apply()
 
-  return { currentTheme, setTheme }
+  return { mode, lightTheme, darkTheme, effectiveTheme, setLightTheme, setDarkTheme, toggleMode }
 })
diff --git a/frontend/src/views/desktop/CustomerManage.vue b/frontend/src/views/desktop/CustomerManage.vue
index 2cf9da7..9421f4f 100644
--- a/frontend/src/views/desktop/CustomerManage.vue
+++ b/frontend/src/views/desktop/CustomerManage.vue
@@ -11,7 +11,7 @@ import axios from 'axios'
 
 const auth = useAuthStore()
 const themeStore = useThemeStore()
-const isLight = computed(() => themeStore.currentTheme === 'light')
+const isLight = computed(() => themeStore.mode === 'light')
 const loading = ref(false)
 const search = ref('')
 const filterIndustry = ref('')
diff --git a/frontend/src/views/desktop/KeyVisits.vue b/frontend/src/views/desktop/KeyVisits.vue
index 33e4773..f737330 100644
--- a/frontend/src/views/desktop/KeyVisits.vue
+++ b/frontend/src/views/desktop/KeyVisits.vue
@@ -12,7 +12,7 @@ import EditLogPanel from '@/components/EditLogPanel.vue'
 const auth = useAuthStore()
 const themeStore = useThemeStore()
 const loading = ref(false)
-const isLight = computed(() => themeStore.currentTheme === 'light')
+const isLight = computed(() => themeStore.mode === 'light')
 const keyVisits = ref<any[]>([])
 const customers = ref<any[]>([])
 const allManagers = ref<any[]>([])
diff --git a/frontend/src/views/desktop/Leaves.vue b/frontend/src/views/desktop/Leaves.vue
index b844bff..27cd479 100644
--- a/frontend/src/views/desktop/Leaves.vue
+++ b/frontend/src/views/desktop/Leaves.vue
@@ -27,7 +27,7 @@ const leaveTypeColors: Record<string, string> = {
 
 const filterManager = ref('')
 const filterStatus = ref('')
-const isLight = computed(() => themeStore.currentTheme === 'light')
+const isLight = computed(() => themeStore.mode === 'light')
 
 const today = new Date().toISOString().slice(0, 10)
 
diff --git a/frontend/src/views/desktop/MiniBusiness.vue b/frontend/src/views/desktop/MiniBusiness.vue
index 07120d4..ff1968b 100644
--- a/frontend/src/views/desktop/MiniBusiness.vue
+++ b/frontend/src/views/desktop/MiniBusiness.vue
@@ -13,7 +13,7 @@ import EditLogPanel from '@/components/EditLogPanel.vue'
 const auth = useAuthStore()
 const themeStore = useThemeStore()
 const loading = ref(false)
-const isLight = computed(() => themeStore.currentTheme === 'light')
+const isLight = computed(() => themeStore.mode === 'light')
 const miniBusiness = ref<any[]>([])
 const customers = ref<any[]>([])
 const allManagers = ref<any[]>([])
diff --git a/frontend/src/views/desktop/Settings.vue b/frontend/src/views/desktop/Settings.vue
index 7913b2b..2a20956 100644
--- a/frontend/src/views/desktop/Settings.vue
+++ b/frontend/src/views/desktop/Settings.vue
@@ -2,7 +2,7 @@
 import { ref, onMounted } from 'vue'
 import { ElMessage } from 'element-plus'
 import api from '@/api/index'
-import { useThemeStore, themeLabels, type Theme } from '@/stores/theme'
+import { useThemeStore, themeLabels, type Theme, lightThemes, darkThemes } from '@/stores/theme'
 
 const themeStore = useThemeStore()
 
@@ -165,10 +165,24 @@ async function handleImportPreview() {
         </div>
       </template>
       <div class="theme-options">
-        <label v-for="t in (['editorial', 'light'] as Theme[])" :key="t" class="theme-opt" :class="{ 'theme-opt--active': themeStore.currentTheme === t }" @click="themeStore.setTheme(t)">
-          <span class="theme-opt-radio">{{ themeStore.currentTheme === t ? '●' : '○' }}</span>
-          <span class="theme-opt-label">{{ themeLabels[t] }}</span>
-        </label>
+        <div class="theme-mode-row">
+          <span class="theme-mode-label">模式</span>
+          <button class="theme-mode-btn" @click="themeStore.toggleMode()">
+            {{ themeStore.mode === 'light' ? '☀️ 亮色模式' : '🌙 深色模式' }}
+          </button>
+        </div>
+        <div class="theme-sub-options">
+          <label
+            v-for="t in (themeStore.mode === 'light' ? lightThemes : darkThemes)"
+            :key="t"
+            class="theme-opt"
+            :class="{ 'theme-opt--active': (themeStore.mode === 'light' ? themeStore.lightTheme : themeStore.darkTheme) === t }"
+            @click="themeStore.mode === 'light' ? themeStore.setLightTheme(t) : themeStore.setDarkTheme(t)"
+          >
+            <span class="theme-opt-radio">{{ (themeStore.mode === 'light' ? themeStore.lightTheme : themeStore.darkTheme) === t ? '●' : '○' }}</span>
+            <span class="theme-opt-label">{{ themeLabels[t] }}</span>
+          </label>
+        </div>
       </div>
     </el-card>
 
@@ -395,7 +409,12 @@ async function handleImportPreview() {
 .setting-label { font-family: var(--font-body); font-size: 13px; color: var(--ink); }
 
 /* ── Theme Selector ── */
-.theme-options { display: flex; gap: 16px; }
+.theme-options { display: flex; flex-direction: column; gap: 12px; }
+.theme-mode-row { display: flex; align-items: center; gap: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--warm-border); margin-bottom: 4px; }
+.theme-mode-label { font-family: var(--font-heading); font-size: 13px; color: var(--warm-gray); }
+.theme-mode-btn { font-family: var(--font-body); font-size: 14px; cursor: pointer; padding: 6px 16px; border: 1px solid var(--warm-border); border-radius: 6px; background: var(--c-primary-bg); color: var(--c-text); transition: all var(--transition); }
+.theme-mode-btn:hover { border-color: var(--gold); }
+.theme-sub-options { display: flex; gap: 12px; padding-left: 4px; }
 .theme-opt { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 8px 16px; border: 1px solid var(--warm-border); transition: all var(--transition); }
 .theme-opt:hover { border-color: var(--ink); }
 .theme-opt--active { border-color: var(--ink); background: var(--c-primary-bg); }
diff --git a/frontend/src/views/desktop/WorkPlans.vue b/frontend/src/views/desktop/WorkPlans.vue
index d3c929e..c9a72a9 100644
--- a/frontend/src/views/desktop/WorkPlans.vue
+++ b/frontend/src/views/desktop/WorkPlans.vue
@@ -31,7 +31,7 @@ const searchText = ref('')
 
 function onSearch() { loadPlans() }
 
-const isLight = computed(() => themeStore.currentTheme === 'light')
+const isLight = computed(() => themeStore.mode === 'light')
 
 const managerOptions = computed(() => {
   const seen = new Set<string>()