diff --git a/components/common/dropdown/Dropdown.vue b/components/common/dropdown/Dropdown.vue
index afd8eb2f..21b88f01 100644
--- a/components/common/dropdown/Dropdown.vue
+++ b/components/common/dropdown/Dropdown.vue
@@ -1,5 +1,8 @@
 <script setup lang="ts">
 import { dropdownContextKey } from './ctx'
+defineProps<{
+  placement?: string
+}>()
 
 const dropdown = $ref<any>()
 
@@ -9,7 +12,7 @@ provide(dropdownContextKey, {
 </script>
 
 <template>
-  <VDropdown v-bind="$attrs" ref="dropdown" :class="{ dark: isDark }">
+  <VDropdown v-bind="$attrs" ref="dropdown" :class="{ dark: isDark }" :placement="placement || 'auto'">
     <slot />
     <template #popper="scope">
       <slot name="popper" v-bind="scope" />
diff --git a/components/nav/NavBottom.vue b/components/nav/NavBottom.vue
index 3fedd35b..5122254f 100644
--- a/components/nav/NavBottom.vue
+++ b/components/nav/NavBottom.vue
@@ -1,30 +1,58 @@
 <script setup lang="ts">
-
+// only one icon can be lit up at the same time
+const moreMenuVisible = ref(false)
 </script>
 
 <template>
-  <nav h-14 border="t base" flex flex-row>
+  <nav
+    h-14 border="t base" flex flex-row text-xl
+    of-y-scroll overscroll-none
+    class="scrollbar-hide after-content-empty after:(h-[calc(100%+0.5px)] w-0.1px pointer-events-none)"
+  >
+    <!-- These weird styles above are used for scroll locking, don't change it unless you know exactly what you're doing. -->
     <template v-if="currentUser">
-      <NuxtLink to="/home" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+      <NuxtLink to="/home" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
         <div i-ri:home-5-line />
       </NuxtLink>
-      <NuxtLink to="/notifications" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+      <NuxtLink to="/notifications" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
         <div i-ri:notification-4-line />
       </NuxtLink>
     </template>
-    <NuxtLink to="/explore" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+    <NuxtLink to="/explore" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
       <div i-ri:hashtag />
     </NuxtLink>
-    <NuxtLink group to="/public/local" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+    <NuxtLink group to="/public/local" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
       <div i-ri:group-2-line />
     </NuxtLink>
-    <NuxtLink to="/public" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
-      <div i-ri:earth-line />
-    </NuxtLink>
+    <template v-if="!currentUser">
+      <NuxtLink to="/public" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+        <div i-ri:earth-line />
+      </NuxtLink>
+    </template>
     <template v-if="currentUser">
-      <NuxtLink to="/conversations" active-class="text-primary" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
+      <NuxtLink to="/conversations" :active-class="moreMenuVisible ? '' : 'text-primary'" flex flex-row items-center place-content-center h-full flex-1 @click="$scrollToTop">
         <div i-ri:at-line />
       </NuxtLink>
     </template>
+    <NavBottomMoreMenu v-slot="{ changeShow, show }" v-model="moreMenuVisible" flex flex-row items-center place-content-center h-full flex-1 cursor-pointer>
+      <label
+        flex items-center place-content-center h-full flex-1 class="selete-none"
+        :class="show ? '!text-primary' : ''"
+      >
+        <input type="checkbox" z="-1" absolute inset-0 opacity-0 @click="changeShow">
+        <span v-show="show" i-ri:close-fill />
+        <span v-show="!show" i-ri:more-fill />
+      </label>
+    </NavBottomMoreMenu>
   </nav>
 </template>
+
+<style scoped>
+.scrollbar-hide {
+  scrollbar-width: none;
+}
+
+.scrollbar-hide::-webkit-scrollbar {
+  display: none;
+}
+</style>
diff --git a/components/nav/NavBottomMoreMenu.vue b/components/nav/NavBottomMoreMenu.vue
new file mode 100644
index 00000000..ed07491d
--- /dev/null
+++ b/components/nav/NavBottomMoreMenu.vue
@@ -0,0 +1,143 @@
+<script lang="ts" setup>
+import type { ComputedRef } from 'vue'
+import type { LocaleObject } from '#i18n'
+
+const props = defineProps<{
+  modelValue?: boolean
+}>()
+const emits = defineEmits<{
+  (event: 'update:modelValue', value: boolean): void
+}>()
+const visible = useVModel(props, 'modelValue', emits, { passive: true })
+
+const { t, locale, setLocale } = useI18n()
+const { locales } = useI18n() as { locales: ComputedRef<LocaleObject[]> }
+
+const toggleLocales = () => {
+  const codes = locales.value.map(item => item.code)
+  setLocale(codes[(codes.indexOf(locale.value) + 1) % codes.length])
+}
+
+function changeShow() {
+  visible.value = !visible.value
+}
+
+const buttonEl = ref<HTMLDivElement>()
+/** Close the drop-down menu if the mouse click is not on the drop-down menu button when the drop-down menu is opened */
+function clickEvent(mouse: MouseEvent) {
+  if (mouse.target && !buttonEl.value?.children[0].contains(mouse.target as any)) {
+    if (visible.value) {
+      document.removeEventListener('click', clickEvent)
+      visible.value = false
+    }
+  }
+}
+
+watch(visible, (val, oldVal) => {
+  if (val && val !== oldVal) {
+    if (!import.meta.env.SSR && typeof document !== 'undefined')
+      document.addEventListener('click', clickEvent)
+  }
+}, { flush: 'post' })
+
+onBeforeUnmount(() => {
+  if (!import.meta.env.SSR)
+    document.removeEventListener('click', clickEvent)
+})
+</script>
+
+<template>
+  <div ref="buttonEl" flex items-center static>
+    <slot :change-show="changeShow" :show="visible" />
+
+    <!-- Drawer -->
+    <Transition
+      enter-active-class="transition duration-250 ease-out children:(transition duration-250 ease-out)"
+      enter-from-class="opacity-0 children:(transform translate-y-full)"
+      enter-to-class="opacity-100 children:(transform translate-y-0)"
+      leave-active-class="transition duration-250 ease-in  children:(transition duration-250 ease-in)"
+      leave-from-class="opacity-100 children:(transform translate-y-0)"
+      leave-to-class="opacity-0 children:(transform translate-y-full)"
+      persisted
+    >
+      <div
+        v-show="visible"
+        class="scrollbar-hide"
+        absolute inset-x-0 top-auto bottom-full z-20 h-100vh
+        flex items-end of-y-scroll of-x-hidden overscroll-none
+        bg="black/50"
+      >
+        <!-- The style `scrollbar-hide overscroll-none overflow-y-scroll mb="-1px"` and `h="[calc(100%+0.5px)]"` is used to implement scroll locking, -->
+        <!-- corresponding to issue: #106, so please don't remove it. -->
+        <div absolute inset-0 opacity-0 h="[calc(100vh+0.5px)]" />
+        <div
+          class="scrollbar-hide"
+          flex-1 min-w-48 py-6 mb="-1px"
+          overflow-y-auto overscroll-none max-h="[calc(100vh-200px)]"
+          rounded-t-lg bg="white/85 dark:neutral-900/85" backdrop-filter backdrop-blur-md
+          border-t-1 border-base
+        >
+          <!-- Nav -->
+          <NavSide />
+
+          <!-- Divider line -->
+          <div border="neutral-300 dark:neutral-700 t-1" m="x-3 y-2" />
+
+          <!-- Function menu -->
+          <div flex="~ col gap2">
+            <!-- Toggle Theme -->
+            <button
+              flex flex-row items-center
+              block px-5 py-2 focus-blue w-full
+              text-sm text-base capitalize text-left whitespace-nowrap
+              transition-colors duration-200 transform
+              hover="bg-gray-100 dark:(bg-gray-700 text-white)"
+              @click="toggleDark()"
+            >
+              <span class="i-ri:sun-line dark:i-ri:moon-line flex-shrink-0 text-xl mr-4 !align-middle" />
+              {{ !isDark ? t('menu.toggle_theme.dark') : t('menu.toggle_theme.light') }}
+            </button>
+            <!-- Switch languages -->
+            <NavSelectLanguage>
+              <button
+                flex flex-row items-center
+                block px-5 py-2 focus-blue w-full
+                text-sm text-base capitalize text-left whitespace-nowrap
+                transition-colors duration-200 transform
+                hover="bg-gray-100 dark:(bg-gray-700 text-white)"
+                @click.stop
+              >
+                <span class="i-ri:earth-line flex-shrink-0 text-xl mr-4 !align-middle" />
+                {{ $t('nav_footer.select_language') }}
+              </button>
+            </NavSelectLanguage>
+            <!-- Toggle Feature Flags -->
+            <NavSelectFeatureFlags v-if="currentUser">
+              <button
+                flex flex-row items-center
+                block px-5 py-2 focus-blue w-full
+                text-sm text-base capitalize text-left whitespace-nowrap
+                transition-colors duration-200 transform
+                hover="bg-gray-100 dark:(bg-gray-700 text-white)"
+                @click.stop
+              >
+                <span class="i-ri:flag-line flex-shrink-0 text-xl mr-4 !align-middle" />
+                {{ $t('nav_footer.select_feature_flags') }}
+              </button>
+            </NavSelectFeatureFlags>
+          </div>
+        </div>
+      </div>
+    </Transition>
+  </div>
+</template>
+
+<style scoped>
+.scrollbar-hide {
+  scrollbar-width: none;
+}
+
+.scrollbar-hide::-webkit-scrollbar {
+  display: none;
+}
+</style>
diff --git a/components/nav/NavFooter.vue b/components/nav/NavFooter.vue
index ed0a89e2..c75da440 100644
--- a/components/nav/NavFooter.vue
+++ b/components/nav/NavFooter.vue
@@ -22,8 +22,20 @@ const buildTimeAgo = useTimeAgo(buildTime, timeAgoOptions)
           @click="toggleZenMode()"
         />
       </CommonTooltip>
-      <NavSelectLanguage />
-      <NavSelectFeatureFlags v-if="currentUser" />
+      <NavSelectLanguage>
+        <CommonTooltip :content="$t('nav_footer.select_language')">
+          <button flex :aria-label="$t('nav_footer.select_language')">
+            <div i-ri:earth-line text-lg />
+          </button>
+        </CommonTooltip>
+      </NavSelectLanguage>
+      <NavSelectFeatureFlags v-if="currentUser">
+        <CommonTooltip :content="$t('nav_footer.select_feature_flags')">
+          <button flex :aria-label="$t('nav_footer.select_feature_flags')">
+            <div i-ri:flag-line text-lg />
+          </button>
+        </CommonTooltip>
+      </NavSelectFeatureFlags>
     </div>
     <div>
       <button cursor-pointer hover:underline @click="openPreviewHelp">
diff --git a/components/nav/NavSide.vue b/components/nav/NavSide.vue
index 72c753ed..783d06bd 100644
--- a/components/nav/NavSide.vue
+++ b/components/nav/NavSide.vue
@@ -3,13 +3,13 @@ const { notifications } = useNotifications()
 </script>
 
 <template>
-  <nav px3 py4 flex="~ col gap2" text-lg>
+  <nav md:px3 md:py4 flex="~ col gap2" text-size-base leading-normal md:text-lg>
     <template v-if="currentUser">
       <NavSideItem :text="$t('nav_side.home')" to="/home" icon="i-ri:home-5-line" />
       <NavSideItem :text="$t('nav_side.notifications')" to="/notifications" icon="i-ri:notification-4-line">
         <template #icon>
           <div flex relative>
-            <div class="i-ri:notification-4-line" />
+            <div class="i-ri:notification-4-line" md:text-size-inherit text-xl />
             <div v-if="notifications" class="top-[-0.3rem] right-[-0.3rem]" absolute font-bold rounded-full h-4 w-4 text-xs bg-primary text-inverted flex items-center justify-center>
               {{ notifications < 10 ? notifications : '•' }}
             </div>
@@ -31,7 +31,7 @@ const { notifications } = useNotifications()
         icon="i-ri:account-circle-line"
       >
         <template #icon>
-          <AccountAvatar :account="currentUser.account" h="1.2em" />
+          <AccountAvatar :account="currentUser.account" h="1.2em" md:text-size-inherit text-xl />
         </template>
         <ContentRich
           :content="getDisplayName(currentUser.account, { rich: true }) || $t('nav_side.profile')"
diff --git a/components/nav/NavSideItem.vue b/components/nav/NavSideItem.vue
index c33b07ba..2cee46ad 100644
--- a/components/nav/NavSideItem.vue
+++ b/components/nav/NavSideItem.vue
@@ -26,9 +26,9 @@ useCommand({
 
 <template>
   <NuxtLink :to="to" active-class="text-primary" group focus:outline-none @click="$scrollToTop">
-    <div flex w-fit px5 py2 gap2 items-center transition-100 rounded-full group-hover:bg-active group-focus-visible:ring="2 current">
+    <div flex w-fit px5 py2 md:gap2 gap4 items-center transition-100 rounded-full group-hover:bg-active group-focus-visible:ring="2 current">
       <slot name="icon">
-        <div :class="icon" />
+        <div :class="icon" md:text-size-inherit text-xl />
       </slot>
       <slot>
         <span>{{ text }}</span>
diff --git a/components/nav/SelectFeatureFlags.vue b/components/nav/SelectFeatureFlags.vue
index f8d33054..53d8de5e 100644
--- a/components/nav/SelectFeatureFlags.vue
+++ b/components/nav/SelectFeatureFlags.vue
@@ -1,24 +1,17 @@
 <script setup lang="ts">
-const { t } = useI18n()
-
 const featureFlags = useFeatureFlags()
 </script>
 
 <template>
-  <CommonTooltip :content="t('nav_footer.select_feature_flags')">
-    <CommonDropdown>
-      <button flex :aria-label="t('nav_footer.select_feature_flags')">
-        <div i-ri:flag-line text-lg />
-      </button>
-
-      <template #popper>
-        <CommonDropdownItem
-          :checked="featureFlags.experimentalVirtualScroll"
-          @click="toggleFeatureFlag('experimentalVirtualScroll')"
-        >
-          {{ t('feature_flag.virtual_scroll') }}
-        </CommonDropdownItem>
-      </template>
-    </CommonDropdown>
-  </CommonTooltip>
+  <CommonDropdown placement="top">
+    <slot />
+    <template #popper>
+      <CommonDropdownItem
+        :checked="featureFlags.experimentalVirtualScroll"
+        @click="toggleFeatureFlag('experimentalVirtualScroll')"
+      >
+        {{ $t('feature_flag.virtual_scroll') }}
+      </CommonDropdownItem>
+    </template>
+  </CommonDropdown>
 </template>
diff --git a/components/nav/SelectLanguage.vue b/components/nav/SelectLanguage.vue
index 6f014cae..b0ffa836 100644
--- a/components/nav/SelectLanguage.vue
+++ b/components/nav/SelectLanguage.vue
@@ -7,22 +7,18 @@ const { locales } = useI18n() as { locales: ComputedRef<LocaleObject[]> }
 </script>
 
 <template>
-  <CommonTooltip :content="t('nav_footer.select_language')">
-    <CommonDropdown>
-      <button flex :aria-label="t('nav_footer.select_language')">
-        <div i-ri:earth-line text-lg />
-      </button>
+  <CommonDropdown>
+    <slot />
 
-      <template #popper>
-        <CommonDropdownItem
-          v-for="item in locales"
-          :key="item.code"
-          :checked="item.code === locale"
-          @click="setLocale(item.code)"
-        >
-          {{ item.name }}
-        </CommonDropdownItem>
-      </template>
-    </CommonDropdown>
-  </CommonTooltip>
+    <template #popper>
+      <CommonDropdownItem
+        v-for="item in locales"
+        :key="item.code"
+        :checked="item.code === locale"
+        @click="setLocale(item.code)"
+      >
+        {{ item.name }}
+      </CommonDropdownItem>
+    </template>
+  </CommonDropdown>
 </template>
diff --git a/layouts/default.vue b/layouts/default.vue
index c3406029..71f20f04 100644
--- a/layouts/default.vue
+++ b/layouts/default.vue
@@ -13,7 +13,7 @@
           </slot>
         </div>
       </aside>
-      <div class="w-full mb14 md:(w-3/4 mb0) lg:(w-2/4 mb0) min-h-screen" border="l r base">
+      <div class="w-full mb14 md:(w-3/4 mb0) lg:(w-2/4 mb0) min-h-screen" border="none md:l md:r base">
         <div min-h-screen>
           <slot />
         </div>
diff --git a/locales/en-US.json b/locales/en-US.json
index 0dfc0c75..c1a8c4bf 100644
--- a/locales/en-US.json
+++ b/locales/en-US.json
@@ -81,6 +81,10 @@
     "open_in_original_site": "Open in original site",
     "pin_on_profile": "Pin on profile",
     "show_untranslated": "Show untranslated",
+    "toggle_theme": {
+      "dark": "Toggle dark mode",
+      "light": "Toggle light mode"
+    },
     "translate_post": "Translate post",
     "unblock_account": "Unblock {0}",
     "unblock_domain": "Unblock domain {0}",
diff --git a/locales/zh-CN.json b/locales/zh-CN.json
index de12c715..cca82a39 100644
--- a/locales/zh-CN.json
+++ b/locales/zh-CN.json
@@ -81,6 +81,10 @@
     "open_in_original_site": "从源站打开",
     "pin_on_profile": "钉选在个人资料上",
     "show_untranslated": "显示原文",
+    "toggle_theme": {
+      "dark": "切换深色模式",
+      "light": "切换亮色模式"
+    },
     "translate_post": "翻译帖子",
     "unblock_account": "解除拉黑 {0}",
     "unblock_domain": "解除拉黑域名 {0}",