diff --git a/src/App.vue b/src/App.vue
index 8a37246..9552aff 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { onMounted, onUnmounted, computed, ref } from 'vue'
+import { onMounted, onUnmounted, computed, ref, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { NConfigProvider, NMessageProvider, NDialogProvider, NNotificationProvider } from 'naive-ui'
 import { themeOverrides } from '@/styles/theme'
@@ -14,6 +14,11 @@ const ready = ref(false)
 
 const isLoginPage = computed(() => route.name === 'login')
 
+// Close mobile sidebar on route change
+watch(() => route.path, () => {
+  appStore.closeSidebar()
+})
+
 // Wait for router to resolve before rendering layout
 router.isReady().then(() => {
   ready.value = true
@@ -39,6 +44,10 @@ useKeyboard()
       <NDialogProvider>
         <NNotificationProvider>
           <div v-if="ready" class="app-layout" :class="{ 'no-sidebar': isLoginPage }">
+            <button v-if="!isLoginPage" class="hamburger-btn" @click="appStore.toggleSidebar">
+              <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><line x1="3" y1="6" x2="21" y2="6"/><line x1="3" y1="12" x2="21" y2="12"/><line x1="3" y1="18" x2="21" y2="18"/></svg>
+            </button>
+            <div v-if="!isLoginPage && appStore.sidebarOpen" class="mobile-backdrop" @click="appStore.closeSidebar" />
             <AppSidebar v-if="!isLoginPage" />
             <main class="app-main">
               <router-view />
diff --git a/src/components/chat/ChatPanel.vue b/src/components/chat/ChatPanel.vue
index 04a12e0..6149f58 100644
--- a/src/components/chat/ChatPanel.vue
+++ b/src/components/chat/ChatPanel.vue
@@ -2,7 +2,7 @@
 import { renameSession } from '@/api/sessions'
 import { useChatStore, type Session } from '@/stores/chat'
 import { NButton, NDropdown, NInput, NModal, NPopconfirm, NTooltip, useMessage } from 'naive-ui'
-import { computed, nextTick, ref, watch } from 'vue'
+import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import ChatInput from './ChatInput.vue'
 import MessageList from './MessageList.vue'
@@ -12,6 +12,23 @@ const message = useMessage()
 const { t } = useI18n()
 
 const showSessions = ref(true)
+let mobileQuery: MediaQueryList | null = null
+
+function handleMobileChange(e: MediaQueryListEvent | MediaQueryList) {
+  if (e.matches && showSessions.value) {
+    showSessions.value = false
+  }
+}
+
+onMounted(() => {
+  mobileQuery = window.matchMedia('(max-width: 768px)')
+  handleMobileChange(mobileQuery)
+  mobileQuery.addEventListener('change', handleMobileChange)
+})
+
+onUnmounted(() => {
+  mobileQuery?.removeEventListener('change', handleMobileChange)
+})
 const showRenameModal = ref(false)
 const renameValue = ref('')
 const renameSessionId = ref<string | null>(null)
@@ -603,4 +620,14 @@ async function handleRenameConfirm() {
   color: $text-muted;
   flex-shrink: 0;
 }
+
+@media (max-width: $breakpoint-mobile) {
+  .chat-header {
+    padding: 16px 12px 16px 52px;
+  }
+
+  .context-info {
+    padding: 0 12px 4px;
+  }
+}
 </style>
diff --git a/src/components/chat/MarkdownRenderer.vue b/src/components/chat/MarkdownRenderer.vue
index 1038859..734158a 100644
--- a/src/components/chat/MarkdownRenderer.vue
+++ b/src/components/chat/MarkdownRenderer.vue
@@ -36,6 +36,7 @@ const renderedHtml = computed(() => md.render(props.content))
 .markdown-body {
   font-size: 14px;
   line-height: 1.65;
+  overflow-x: auto;
 
   p {
     margin: 0 0 8px;
@@ -93,6 +94,8 @@ const renderedHtml = computed(() => md.render(props.content))
     width: 100%;
     border-collapse: collapse;
     margin: 8px 0;
+    display: block;
+    overflow-x: auto;
 
     th, td {
       padding: 6px 12px;
diff --git a/src/components/chat/MessageItem.vue b/src/components/chat/MessageItem.vue
index 9e9d6a1..df6d189 100644
--- a/src/components/chat/MessageItem.vue
+++ b/src/components/chat/MessageItem.vue
@@ -467,4 +467,18 @@ const formattedToolResult = computed(() => {
     transform: scale(1);
   }
 }
+
+@media (max-width: $breakpoint-mobile) {
+  .msg-user .msg-body {
+    max-width: 90%;
+  }
+
+  .msg-assistant .msg-body {
+    max-width: 92%;
+  }
+
+  .msg-system .msg-body {
+    max-width: 92%;
+  }
+}
 </style>
diff --git a/src/components/jobs/JobFormModal.vue b/src/components/jobs/JobFormModal.vue
index a11052a..e212fab 100644
--- a/src/components/jobs/JobFormModal.vue
+++ b/src/components/jobs/JobFormModal.vue
@@ -112,7 +112,7 @@ function handleClose() {
     v-model:show="showModal"
     preset="card"
     :title="isEdit ? t('jobs.editJob') : t('jobs.createJob')"
-    :style="{ width: '520px' }"
+    :style="{ width: 'min(520px, calc(100vw - 32px))' }"
     :mask-closable="!loading"
     @after-leave="emit('close')"
   >
diff --git a/src/components/jobs/JobsPanel.vue b/src/components/jobs/JobsPanel.vue
index 2d1ff61..00a52e8 100644
--- a/src/components/jobs/JobsPanel.vue
+++ b/src/components/jobs/JobsPanel.vue
@@ -55,7 +55,7 @@ const jobsStore = useJobsStore()
 
 .jobs-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
+  grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
   gap: 14px;
 }
 </style>
diff --git a/src/components/layout/AppSidebar.vue b/src/components/layout/AppSidebar.vue
index 53b7a6d..51cedf3 100644
--- a/src/components/layout/AppSidebar.vue
+++ b/src/components/layout/AppSidebar.vue
@@ -66,7 +66,7 @@ function handleNav(key: string) {
 </script>
 
 <template>
-  <aside class="sidebar">
+  <aside class="sidebar" :class="{ open: appStore.sidebarOpen }">
     <div class="sidebar-logo" @click="router.push('/chat')">
       <img src="/logo.png" alt="Hermes" class="logo-img" />
       <span class="logo-text">Hermes</span>
@@ -376,7 +376,7 @@ function handleNav(key: string) {
   display: flex;
   align-items: center;
   gap: 10px;
-  padding: 10px 12px;
+  padding: 12px;
   border: none;
   background: none;
   color: $text-secondary;
@@ -442,4 +442,23 @@ function handleNav(key: string) {
   font-size: 11px;
   color: $text-muted;
 }
+
+@media (max-width: $breakpoint-mobile) {
+  .logo-dance {
+    display: none;
+  }
+
+  .sidebar {
+    position: fixed;
+    left: 0;
+    top: 0;
+    z-index: 1000;
+    transform: translateX(-100%);
+    transition: transform $transition-normal;
+
+    &.open {
+      transform: translateX(0);
+    }
+  }
+}
 </style>
diff --git a/src/components/layout/LanguageSwitch.vue b/src/components/layout/LanguageSwitch.vue
index 9d34e47..d3f9afd 100644
--- a/src/components/layout/LanguageSwitch.vue
+++ b/src/components/layout/LanguageSwitch.vue
@@ -24,7 +24,7 @@ function handleChange(val: string) {
     :options="options"
     size="tiny"
     :consistent-menu-width="false"
-    style="width: 90px"
+    class="input-sm"
     @update:value="handleChange"
   />
 </template>
diff --git a/src/components/models/ProviderFormModal.vue b/src/components/models/ProviderFormModal.vue
index 11f081a..5477c5b 100644
--- a/src/components/models/ProviderFormModal.vue
+++ b/src/components/models/ProviderFormModal.vue
@@ -150,7 +150,7 @@ function handleClose() {
     v-model:show="showModal"
     preset="card"
     :title="t('models.addProvider')"
-    :style="{ width: '520px' }"
+    :style="{ width: 'min(520px, calc(100vw - 32px))' }"
     :mask-closable="!loading"
     @after-leave="emit('close')"
   >
diff --git a/src/components/models/ProvidersPanel.vue b/src/components/models/ProvidersPanel.vue
index 720a8c6..4e46fcb 100644
--- a/src/components/models/ProvidersPanel.vue
+++ b/src/components/models/ProvidersPanel.vue
@@ -48,7 +48,7 @@ const modelsStore = useModelsStore()
 
 .providers-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
+  grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr));
   gap: 14px;
 }
 </style>
diff --git a/src/components/settings/AgentSettings.vue b/src/components/settings/AgentSettings.vue
index 3b424b9..9679473 100644
--- a/src/components/settings/AgentSettings.vue
+++ b/src/components/settings/AgentSettings.vue
@@ -24,7 +24,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.agent.max_turns"
         :min="1" :max="200" :step="5"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ max_turns: v })"
       />
     </SettingRow>
@@ -32,7 +32,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.agent.gateway_timeout"
         :min="60" :max="7200" :step="60"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ gateway_timeout: v })"
       />
     </SettingRow>
@@ -40,7 +40,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.agent.restart_drain_timeout"
         :min="10" :max="300" :step="10"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ restart_drain_timeout: v })"
       />
     </SettingRow>
@@ -52,7 +52,7 @@ async function save(values: Record<string, any>) {
           { label: t('settings.agent.always'), value: 'always' },
           { label: t('settings.agent.never'), value: 'never' },
         ]"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => save({ tool_use_enforcement: v })"
       />
     </SettingRow>
diff --git a/src/components/settings/MemorySettings.vue b/src/components/settings/MemorySettings.vue
index b7bed25..121b7bf 100644
--- a/src/components/settings/MemorySettings.vue
+++ b/src/components/settings/MemorySettings.vue
@@ -30,7 +30,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.memory.memory_char_limit"
         :min="100" :max="10000" :step="100"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ memory_char_limit: v })"
       />
     </SettingRow>
@@ -38,7 +38,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.memory.user_char_limit"
         :min="100" :max="10000" :step="100"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ user_char_limit: v })"
       />
     </SettingRow>
diff --git a/src/components/settings/PlatformSettings.vue b/src/components/settings/PlatformSettings.vue
index 25ef38e..874c476 100644
--- a/src/components/settings/PlatformSettings.vue
+++ b/src/components/settings/PlatformSettings.vue
@@ -164,7 +164,7 @@ const platforms = [
       <!-- Telegram -->
       <template v-if="p.key === 'telegram'">
         <SettingRow :label="t('platform.botToken')" :hint="t('platform.botTokenHint')">
-          <NInput :value="getCreds('telegram').token || ''" clearable size="small" style="width: 300px" placeholder="123456:ABC-DEF..." @update:value="v => saveCredentials('telegram', { token: v })" />
+          <NInput :value="getCreds('telegram').token || ''" clearable size="small" class="input-lg" placeholder="123456:ABC-DEF..." @update:value="v => saveCredentials('telegram', { token: v })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionGroup')">
           <NSwitch :value="settingsStore.telegram.require_mention" @update:value="v => saveChannel('telegram', { require_mention: v })" />
@@ -183,7 +183,7 @@ const platforms = [
       <!-- Discord -->
       <template v-if="p.key === 'discord'">
         <SettingRow :label="t('platform.botToken')" :hint="t('platform.botTokenHint')">
-          <NInput :value="getCreds('discord').token || ''" clearable size="small" style="width: 300px" placeholder="Bot token..." @update:value="v => saveCredentials('discord', { token: v })" />
+          <NInput :value="getCreds('discord').token || ''" clearable size="small" class="input-lg" placeholder="Bot token..." @update:value="v => saveCredentials('discord', { token: v })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionChannel')">
           <NSwitch :value="settingsStore.discord.require_mention" @update:value="v => saveChannel('discord', { require_mention: v })" />
@@ -211,7 +211,7 @@ const platforms = [
       <!-- Slack -->
       <template v-if="p.key === 'slack'">
         <SettingRow :label="t('platform.botToken')" :hint="t('platform.botTokenHint')">
-          <NInput :value="getCreds('slack').token || ''" clearable size="small" style="width: 300px" placeholder="xoxb-..." @update:value="v => saveCredentials('slack', { token: v })" />
+          <NInput :value="getCreds('slack').token || ''" clearable size="small" class="input-lg" placeholder="xoxb-..." @update:value="v => saveCredentials('slack', { token: v })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionChannel')">
           <NSwitch :value="settingsStore.slack.require_mention" @update:value="v => saveChannel('slack', { require_mention: v })" />
@@ -243,10 +243,10 @@ const platforms = [
       <!-- Matrix -->
       <template v-if="p.key === 'matrix'">
         <SettingRow :label="t('platform.accessToken')" :hint="t('platform.accessTokenHint')">
-          <NInput :value="getCreds('matrix').token || ''" clearable size="small" style="width: 300px" placeholder="syt_..." @update:value="v => saveCredentials('matrix', { token: v })" />
+          <NInput :value="getCreds('matrix').token || ''" clearable size="small" class="input-lg" placeholder="syt_..." @update:value="v => saveCredentials('matrix', { token: v })" />
         </SettingRow>
         <SettingRow :label="t('platform.homeserver')" :hint="t('platform.homeserverHint')">
-          <NInput :value="getCreds('matrix').extra?.homeserver || ''" clearable size="small" style="width: 300px" placeholder="https://matrix.org" @update:value="v => saveCredentials('matrix', { extra: { ...getCreds('matrix').extra, homeserver: v } })" />
+          <NInput :value="getCreds('matrix').extra?.homeserver || ''" clearable size="small" class="input-lg" placeholder="https://matrix.org" @update:value="v => saveCredentials('matrix', { extra: { ...getCreds('matrix').extra, homeserver: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionRoom')">
           <NSwitch :value="settingsStore.matrix.require_mention" @update:value="v => saveChannel('matrix', { require_mention: v })" />
@@ -265,10 +265,10 @@ const platforms = [
       <!-- Feishu -->
       <template v-if="p.key === 'feishu'">
         <SettingRow :label="t('platform.appId')" :hint="t('platform.appIdHint')">
-          <NInput :value="getCreds('feishu').extra?.app_id || ''" clearable size="small" style="width: 300px" placeholder="cli_..." @update:value="v => saveCredentials('feishu', { extra: { ...getCreds('feishu').extra, app_id: v } })" />
+          <NInput :value="getCreds('feishu').extra?.app_id || ''" clearable size="small" class="input-lg" placeholder="cli_..." @update:value="v => saveCredentials('feishu', { extra: { ...getCreds('feishu').extra, app_id: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.appSecret')" :hint="t('platform.appSecretHint')">
-          <NInput :value="getCreds('feishu').extra?.app_secret || ''" clearable size="small" style="width: 300px" placeholder="App Secret" @update:value="v => saveCredentials('feishu', { extra: { ...getCreds('feishu').extra, app_secret: v } })" />
+          <NInput :value="getCreds('feishu').extra?.app_secret || ''" clearable size="small" class="input-lg" placeholder="App Secret" @update:value="v => saveCredentials('feishu', { extra: { ...getCreds('feishu').extra, app_secret: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionGroup')">
           <NSwitch :value="settingsStore.feishu.require_mention" @update:value="v => saveChannel('feishu', { require_mention: v })" />
@@ -281,10 +281,10 @@ const platforms = [
       <!-- DingTalk -->
       <template v-if="p.key === 'dingtalk'">
         <SettingRow :label="t('platform.clientId')" :hint="t('platform.clientIdHint')">
-          <NInput :value="getCreds('dingtalk').extra?.client_id || ''" clearable size="small" style="width: 300px" placeholder="Client ID" @update:value="v => saveCredentials('dingtalk', { extra: { ...getCreds('dingtalk').extra, client_id: v } })" />
+          <NInput :value="getCreds('dingtalk').extra?.client_id || ''" clearable size="small" class="input-lg" placeholder="Client ID" @update:value="v => saveCredentials('dingtalk', { extra: { ...getCreds('dingtalk').extra, client_id: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.clientSecret')" :hint="t('platform.clientSecretHint')">
-          <NInput :value="getCreds('dingtalk').extra?.client_secret || ''" clearable size="small" style="width: 300px" placeholder="Client Secret" @update:value="v => saveCredentials('dingtalk', { extra: { ...getCreds('dingtalk').extra, client_secret: v } })" />
+          <NInput :value="getCreds('dingtalk').extra?.client_secret || ''" clearable size="small" class="input-lg" placeholder="Client Secret" @update:value="v => saveCredentials('dingtalk', { extra: { ...getCreds('dingtalk').extra, client_secret: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.requireMention')" :hint="t('platform.requireMentionGroup')">
           <NSwitch :value="settingsStore.dingtalk.require_mention" @update:value="v => saveChannel('dingtalk', { require_mention: v })" />
@@ -314,20 +314,20 @@ const platforms = [
           </div>
         </div>
         <SettingRow :label="t('platform.weixinToken')" :hint="t('platform.weixinTokenHint')">
-          <NInput :value="getCreds('weixin').token || ''" clearable size="small" style="width: 300px" placeholder="Token" @update:value="v => saveCredentials('weixin', { token: v })" />
+          <NInput :value="getCreds('weixin').token || ''" clearable size="small" class="input-lg" placeholder="Token" @update:value="v => saveCredentials('weixin', { token: v })" />
         </SettingRow>
         <SettingRow :label="t('platform.accountId')" :hint="t('platform.accountIdHint')">
-          <NInput :value="getCreds('weixin').extra?.account_id || ''" clearable size="small" style="width: 300px" placeholder="Account ID" @update:value="v => saveCredentials('weixin', { extra: { ...getCreds('weixin').extra, account_id: v } })" />
+          <NInput :value="getCreds('weixin').extra?.account_id || ''" clearable size="small" class="input-lg" placeholder="Account ID" @update:value="v => saveCredentials('weixin', { extra: { ...getCreds('weixin').extra, account_id: v } })" />
         </SettingRow>
       </template>
 
       <!-- WeCom -->
       <template v-if="p.key === 'wecom'">
         <SettingRow :label="t('platform.botId')" :hint="t('platform.botIdHint')">
-          <NInput :value="getCreds('wecom').extra?.bot_id || ''" clearable size="small" style="width: 300px" placeholder="Bot ID" @update:value="v => saveCredentials('wecom', { extra: { ...getCreds('wecom').extra, bot_id: v } })" />
+          <NInput :value="getCreds('wecom').extra?.bot_id || ''" clearable size="small" class="input-lg" placeholder="Bot ID" @update:value="v => saveCredentials('wecom', { extra: { ...getCreds('wecom').extra, bot_id: v } })" />
         </SettingRow>
         <SettingRow :label="t('platform.appSecret')" :hint="t('platform.wecomSecretHint')">
-          <NInput :value="getCreds('wecom').extra?.secret || ''" clearable size="small" style="width: 300px" placeholder="Secret" @update:value="v => saveCredentials('wecom', { extra: { ...getCreds('wecom').extra, secret: v } })" />
+          <NInput :value="getCreds('wecom').extra?.secret || ''" clearable size="small" class="input-lg" placeholder="Secret" @update:value="v => saveCredentials('wecom', { extra: { ...getCreds('wecom').extra, secret: v } })" />
         </SettingRow>
       </template>
     </PlatformCard>
diff --git a/src/components/settings/SessionSettings.vue b/src/components/settings/SessionSettings.vue
index 21c110c..e2be711 100644
--- a/src/components/settings/SessionSettings.vue
+++ b/src/components/settings/SessionSettings.vue
@@ -28,7 +28,7 @@ async function save(values: Record<string, any>) {
           { label: t('settings.session.modeIdle'), value: 'idle' },
           { label: t('settings.session.modeHourly'), value: 'hourly' },
         ]"
-        size="small" style="width: 140px"
+        size="small" class="input-md"
         @update:value="v => save({ mode: v })"
       />
     </SettingRow>
@@ -36,7 +36,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.sessionReset.idle_minutes"
         :min="10" :max="10080" :step="30"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ idle_minutes: v })"
       />
     </SettingRow>
@@ -44,7 +44,7 @@ async function save(values: Record<string, any>) {
       <NInputNumber
         :value="settingsStore.sessionReset.at_hour"
         :min="0" :max="23" :step="1"
-        size="small" style="width: 120px"
+        size="small" class="input-sm"
         @update:value="v => v != null && save({ at_hour: v })"
       />
     </SettingRow>
diff --git a/src/components/settings/SettingRow.vue b/src/components/settings/SettingRow.vue
index 7df0338..c0dfe4d 100644
--- a/src/components/settings/SettingRow.vue
+++ b/src/components/settings/SettingRow.vue
@@ -52,4 +52,20 @@ defineProps<{
 .setting-control {
   flex-shrink: 0;
 }
+
+@media (max-width: $breakpoint-mobile) {
+  .setting-row {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 8px;
+  }
+
+  .setting-info {
+    margin-right: 0;
+  }
+
+  .setting-control {
+    width: 100%;
+  }
+}
 </style>
diff --git a/src/components/usage/StatCards.vue b/src/components/usage/StatCards.vue
index f178448..006d7b0 100644
--- a/src/components/usage/StatCards.vue
+++ b/src/components/usage/StatCards.vue
@@ -88,4 +88,10 @@ function formatCost(n: number): string {
     grid-template-columns: repeat(2, 1fr);
   }
 }
+
+@media (max-width: 480px) {
+  .stat-cards {
+    grid-template-columns: 1fr;
+  }
+}
 </style>
diff --git a/src/stores/app.ts b/src/stores/app.ts
index 6545de9..1bdb8e3 100644
--- a/src/stores/app.ts
+++ b/src/stores/app.ts
@@ -3,6 +3,8 @@ import { ref } from 'vue'
 import { checkHealth, fetchAvailableModels, updateDefaultModel, type AvailableModelGroup } from '@/api/system'
 
 export const useAppStore = defineStore('app', () => {
+  const sidebarOpen = ref(false)
+
   const connected = ref(false)
   const serverVersion = ref('')
   const modelGroups = ref<AvailableModelGroup[]>([])
@@ -59,7 +61,18 @@ export const useAppStore = defineStore('app', () => {
     }
   }
 
+  function toggleSidebar() {
+    sidebarOpen.value = !sidebarOpen.value
+  }
+
+  function closeSidebar() {
+    sidebarOpen.value = false
+  }
+
   return {
+    sidebarOpen,
+    toggleSidebar,
+    closeSidebar,
     connected,
     serverVersion,
     modelGroups,
diff --git a/src/styles/global.scss b/src/styles/global.scss
index 1ac23d5..0f35f15 100644
--- a/src/styles/global.scss
+++ b/src/styles/global.scss
@@ -74,3 +74,56 @@ a {
   font-weight: 600;
   color: $text-primary;
 }
+
+// Responsive utility classes for inline width replacement
+.input-sm { width: 90px; }
+.input-md { width: 200px; }
+.input-lg { width: 300px; }
+
+// Mobile drawer backdrop
+.mobile-backdrop {
+  display: none;
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.4);
+  z-index: 999;
+}
+
+// Hamburger button (mobile only)
+.hamburger-btn {
+  display: none;
+  position: fixed;
+  top: 16px;
+  left: 12px;
+  z-index: 1001;
+  width: 36px;
+  height: 36px;
+  border: none;
+  background: $bg-card;
+  border-radius: $radius-sm;
+  cursor: pointer;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
+}
+
+// Mobile responsive
+@media (max-width: $breakpoint-mobile) {
+  .mobile-backdrop {
+    display: block;
+  }
+
+  .hamburger-btn {
+    display: flex;
+  }
+
+  .page-header {
+    padding: 16px 12px 16px 52px;
+  }
+
+  .input-sm,
+  .input-md,
+  .input-lg {
+    width: 100%;
+  }
+}
diff --git a/src/styles/variables.scss b/src/styles/variables.scss
index 36865ee..eada616 100644
--- a/src/styles/variables.scss
+++ b/src/styles/variables.scss
@@ -45,6 +45,7 @@ $font-code: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
 $sidebar-width: 240px;
 $sidebar-collapsed-width: 64px;
 $header-height: 60px;
+$breakpoint-mobile: 768px;
 
 // Radius
 $radius-sm: 6px;
diff --git a/src/views/LoginView.vue b/src/views/LoginView.vue
index 03527b4..7e21418 100644
--- a/src/views/LoginView.vue
+++ b/src/views/LoginView.vue
@@ -89,11 +89,16 @@ async function handleLogin() {
 
 .login-card {
   width: 480px;
-  padding: 56px 56px;
+  max-width: calc(100vw - 32px);
+  padding: 56px;
   border: 1px solid $border-color;
   border-radius: $radius-lg;
   background: $bg-card;
   text-align: center;
+
+  @media (max-width: $breakpoint-mobile) {
+    padding: 32px 24px;
+  }
 }
 
 .login-logo {
diff --git a/src/views/LogsView.vue b/src/views/LogsView.vue
index ff19fcd..7eec108 100644
--- a/src/views/LogsView.vue
+++ b/src/views/LogsView.vue
@@ -93,21 +93,21 @@ onMounted(async () => {
           v-model:value="selectedLog"
           :options="logOptions"
           size="small"
-          style="width: 200px"
+          class="input-md"
           @update:value="loadLogs"
         />
         <NSelect
           :value="levelFilter"
           :options="levelOptions"
           size="small"
-          style="width: 110px"
+          class="input-sm"
           @update:value="(v: string) => { levelFilter = v; loadLogs() }"
         />
         <NSelect
           :value="lineCount"
           :options="lineOptions"
           size="small"
-          style="width: 80px"
+          class="input-sm"
           @update:value="(v: number) => { lineCount = v; loadLogs() }"
         />
         <input
diff --git a/src/views/MemoryView.vue b/src/views/MemoryView.vue
index 6b339c0..e7acd7e 100644
--- a/src/views/MemoryView.vue
+++ b/src/views/MemoryView.vue
@@ -215,6 +215,10 @@ const displayUser = computed(() => (data.value?.user || '').replace(/§/g, '\n\n
   gap: 16px;
   flex: 1;
   min-height: 0;
+
+  @media (max-width: $breakpoint-mobile) {
+    flex-direction: column;
+  }
 }
 
 .memory-section {
diff --git a/src/views/SettingsView.vue b/src/views/SettingsView.vue
index cfeac46..555b913 100644
--- a/src/views/SettingsView.vue
+++ b/src/views/SettingsView.vue
@@ -63,7 +63,7 @@ async function saveApiServer(values: Record<string, any>) {
               <SettingRow :label="t('settings.apiServer.host')" :hint="t('settings.apiServer.hostHint')">
                 <NInput
                   :value="settingsStore.platforms?.api_server?.host || ''"
-                  size="small" style="width: 200px"
+                  size="small" class="input-md"
                   @update:value="v => saveApiServer({ host: v })"
                 />
               </SettingRow>
@@ -71,7 +71,7 @@ async function saveApiServer(values: Record<string, any>) {
                 <NInputNumber
                   :value="settingsStore.platforms?.api_server?.port"
                   :min="1024" :max="65535"
-                  size="small" style="width: 120px"
+                  size="small" class="input-sm"
                   @update:value="v => v != null && saveApiServer({ port: v })"
                 />
               </SettingRow>
@@ -79,14 +79,14 @@ async function saveApiServer(values: Record<string, any>) {
                 <NInput
                   :value="settingsStore.platforms?.api_server?.key || ''"
                   type="password" show-password-on="click"
-                  size="small" style="width: 200px"
+                  size="small" class="input-md"
                   @update:value="v => saveApiServer({ key: v })"
                 />
               </SettingRow>
               <SettingRow :label="t('settings.apiServer.cors')" :hint="t('settings.apiServer.corsHint')">
                 <NInput
                   :value="settingsStore.platforms?.api_server?.cors_origins || ''"
-                  size="small" style="width: 200px"
+                  size="small" class="input-md"
                   @update:value="v => saveApiServer({ cors_origins: v })"
                 />
               </SettingRow>
diff --git a/src/views/SkillsView.vue b/src/views/SkillsView.vue
index db5352f..84a3445 100644
--- a/src/views/SkillsView.vue
+++ b/src/views/SkillsView.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, onMounted } from 'vue'
+import { ref, onMounted, onUnmounted } from 'vue'
 import { NInput } from 'naive-ui'
 import { useI18n } from 'vue-i18n'
 import SkillList from '@/components/skills/SkillList.vue'
@@ -12,8 +12,23 @@ const loading = ref(false)
 const selectedCategory = ref('')
 const selectedSkill = ref('')
 const searchQuery = ref('')
+const showSidebar = ref(true)
+let mobileQuery: MediaQueryList | null = null
 
-onMounted(loadSkills)
+function handleMobileChange(e: MediaQueryListEvent | MediaQueryList) {
+  showSidebar.value = !e.matches
+}
+
+onMounted(() => {
+  mobileQuery = window.matchMedia('(max-width: 768px)')
+  handleMobileChange(mobileQuery)
+  mobileQuery.addEventListener('change', handleMobileChange)
+  loadSkills()
+})
+
+onUnmounted(() => {
+  mobileQuery?.removeEventListener('change', handleMobileChange)
+})
 
 async function loadSkills() {
   loading.value = true
@@ -35,7 +50,12 @@ function handleSelect(category: string, skill: string) {
 <template>
   <div class="skills-view">
     <header class="page-header">
-      <h2 class="header-title">{{ t('skills.title') }}</h2>
+      <div style="display: flex; align-items: center; gap: 8px;">
+        <h2 class="header-title">{{ t('skills.title') }}</h2>
+        <button v-if="!showSidebar" class="sidebar-toggle" @click="showSidebar = true">
+          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="3" y1="12" x2="21" y2="12"/><line x1="3" y1="6" x2="21" y2="6"/><line x1="3" y1="18" x2="21" y2="18"/></svg>
+        </button>
+      </div>
       <NInput
         v-model:value="searchQuery"
         :placeholder="t('skills.searchPlaceholder')"
@@ -48,7 +68,7 @@ function handleSelect(category: string, skill: string) {
     <div class="skills-content">
       <div v-if="loading && categories.length === 0" class="skills-loading">Loading...</div>
       <div v-else class="skills-layout">
-          <div class="skills-sidebar">
+          <div v-if="showSidebar" class="skills-sidebar">
             <SkillList
               :categories="categories"
               :selected-skill="selectedCategory && selectedSkill ? `${selectedCategory}/${selectedSkill}` : null"
@@ -87,6 +107,10 @@ function handleSelect(category: string, skill: string) {
 
 .search-input {
   width: 220px;
+
+  @media (max-width: $breakpoint-mobile) {
+    width: 100%;
+  }
 }
 
 .skills-content {
@@ -123,6 +147,42 @@ function handleSelect(category: string, skill: string) {
   overflow-y: auto;
   padding: 16px 20px;
   min-width: 0;
+}
+
+.sidebar-toggle {
+  display: none;
+  border: none;
+  background: none;
+  cursor: pointer;
+  color: $text-secondary;
+  padding: 4px;
+  border-radius: $radius-sm;
+
+  &:hover {
+    background: rgba($accent-primary, 0.06);
+  }
+}
+
+@media (max-width: $breakpoint-mobile) {
+  .sidebar-toggle {
+    display: flex;
+  }
+
+  .skills-sidebar {
+    position: absolute;
+    left: 0;
+    top: 0;
+    height: 100%;
+    z-index: 10;
+    background: $bg-card;
+    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
+  }
+
+  .skills-layout {
+    position: relative;
+  }
+}
+  min-width: 0;
   min-height: 0;
 }