diff --git a/frontend/src/pages/index/BackupModal.vue b/frontend/src/pages/index/BackupModal.vue
new file mode 100644
index 00000000..45892035
--- /dev/null
+++ b/frontend/src/pages/index/BackupModal.vue
@@ -0,0 +1,87 @@
+<script setup>
+import { DownloadOutlined, UploadOutlined } from '@ant-design/icons-vue';
+import { HttpUtil, PromiseUtil } from '@/utils';
+
+defineProps({
+  open: { type: Boolean, default: false },
+  basePath: { type: String, default: '' },
+});
+
+const emit = defineEmits(['update:open', 'busy']);
+
+function close() {
+  emit('update:open', false);
+}
+
+function exportDb() {
+  // The Go endpoint streams x-ui.db as a download. Setting
+  // window.location triggers a browser download without leaving
+  // the page (the Go side responds with Content-Disposition: attachment).
+  window.location = '/panel/api/server/getDb';
+}
+
+function importDb() {
+  const fileInput = document.createElement('input');
+  fileInput.type = 'file';
+  fileInput.accept = '.db';
+  fileInput.addEventListener('change', async (e) => {
+    const dbFile = e.target.files?.[0];
+    if (!dbFile) return;
+
+    const formData = new FormData();
+    formData.append('db', dbFile);
+
+    close();
+    emit('busy', { busy: true, tip: 'Importing database…' });
+
+    const upload = await HttpUtil.post('/panel/api/server/importDB', formData, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+    });
+    if (!upload?.success) {
+      emit('busy', { busy: false });
+      return;
+    }
+
+    emit('busy', { busy: true, tip: 'Restarting panel…' });
+    const restart = await HttpUtil.post('/panel/setting/restartPanel');
+    if (restart?.success) {
+      await PromiseUtil.sleep(5000);
+      window.location.reload();
+    } else {
+      emit('busy', { busy: false });
+    }
+  });
+  fileInput.click();
+}
+</script>
+
+<template>
+  <a-modal :open="open" title="Database backup & restore" :closable="true" :footer="null" @cancel="close">
+    <a-list bordered class="backup-list">
+      <a-list-item class="backup-item">
+        <a-list-item-meta>
+          <template #title>Back up</template>
+          <template #description>Click to download a .db file containing a backup of your current database to your device.</template>
+        </a-list-item-meta>
+        <a-button type="primary" @click="exportDb">
+          <template #icon><DownloadOutlined /></template>
+        </a-button>
+      </a-list-item>
+
+      <a-list-item class="backup-item">
+        <a-list-item-meta>
+          <template #title>Restore</template>
+          <template #description>Click to upload a .db file. The panel restarts after restore — your session will reconnect automatically.</template>
+        </a-list-item-meta>
+        <a-button type="primary" @click="importDb">
+          <template #icon><UploadOutlined /></template>
+        </a-button>
+      </a-list-item>
+    </a-list>
+  </a-modal>
+</template>
+
+<style scoped>
+.backup-list { width: 100%; }
+.backup-item { display: flex; align-items: center; gap: 16px; }
+</style>
diff --git a/frontend/src/pages/index/IndexPage.vue b/frontend/src/pages/index/IndexPage.vue
index 10385e46..8eca5521 100644
--- a/frontend/src/pages/index/IndexPage.vue
+++ b/frontend/src/pages/index/IndexPage.vue
@@ -1,6 +1,7 @@
 <script setup>
-import { computed, ref } from 'vue';
+import { computed, onMounted, ref } from 'vue';
 import { theme as antdTheme } from 'ant-design-vue';
+import { BarsOutlined, CloudServerOutlined, CloudDownloadOutlined } from '@ant-design/icons-vue';
 
 import { HttpUtil } from '@/utils';
 import { theme as themeState } from '@/composables/useTheme.js';
@@ -9,6 +10,9 @@ import { useMediaQuery } from '@/composables/useMediaQuery.js';
 import AppSidebar from '@/components/AppSidebar.vue';
 import StatusCard from './StatusCard.vue';
 import XrayStatusCard from './XrayStatusCard.vue';
+import PanelUpdateModal from './PanelUpdateModal.vue';
+import LogModal from './LogModal.vue';
+import BackupModal from './BackupModal.vue';
 
 // Drive AD-Vue 4's built-in dark algorithm from our reactive theme.
 const antdThemeConfig = computed(() => ({
@@ -25,49 +29,46 @@ HttpUtil.post('/panel/setting/defaultSettings').then((msg) => {
   if (msg?.success && msg.obj) ipLimitEnable.value = !!msg.obj.ipLimitEnable;
 });
 
-// In production the Go panel injects basePath + requestUri into the
-// served HTML; during `npm run dev` we infer them from window.location.
+// Panel-update info — fetched once on mount, drives both the badge
+// in QuickActions and the contents of PanelUpdateModal.
+const panelUpdateInfo = ref({ currentVersion: '', latestVersion: '', updateAvailable: false });
+onMounted(() => {
+  HttpUtil.get('/panel/api/server/getPanelUpdateInfo').then((msg) => {
+    if (msg?.success && msg.obj) panelUpdateInfo.value = msg.obj;
+  });
+});
+
 const basePath = window.__X_UI_BASE_PATH__ || '';
 const requestUri = window.location.pathname;
 
-const busy = ref(false);
+// Modal open state.
+const logsOpen = ref(false);
+const backupOpen = ref(false);
+const panelUpdateOpen = ref(false);
 
+// Page-level loading overlay; modals can request it via @busy.
+const loading = ref(false);
+const loadingTip = ref('Loading…');
+function setBusy({ busy, tip }) {
+  loading.value = busy;
+  if (tip) loadingTip.value = tip;
+}
+
+// Xray controls
 async function stopXray() {
-  busy.value = true;
-  try {
-    await HttpUtil.post('/panel/api/server/stopXrayService');
-    await refresh();
-  } finally {
-    busy.value = false;
-  }
+  await HttpUtil.post('/panel/api/server/stopXrayService');
+  await refresh();
 }
-
 async function restartXray() {
-  busy.value = true;
-  try {
-    await HttpUtil.post('/panel/api/server/restartXrayService');
-    await refresh();
-  } finally {
-    busy.value = false;
-  }
+  await HttpUtil.post('/panel/api/server/restartXrayService');
+  await refresh();
 }
 
-function onOpenCpuHistory() {
-  // CPU-history modal is part of Phase 5c-iv. Wired emit so the
-  // button isn't dead-clickable; no-op until that phase ships.
-}
-
-function onOpenLogs() {
-  // Panel-logs modal — Phase 5c-iv.
-}
-
-function onOpenXrayLogs() {
-  // Xray-logs modal — Phase 5c-iv.
-}
-
-function onOpenVersionSwitch() {
-  // Xray version-picker modal — Phase 5c-iv.
-}
+// Modal-button stubs that aren't ported yet — keep wired so buttons
+// don't appear broken; full implementations come in 5c-iv-b / -v.
+function openCpuHistory() { /* CPU history sparkline — 5c-iv-b */ }
+function openXrayLogs() { /* xray-logs viewer — 5c-iv-b */ }
+function openVersionSwitch() { /* xray version picker — 5c-iv-b */ }
 </script>
 
 <template>
@@ -77,13 +78,14 @@ function onOpenVersionSwitch() {
 
       <a-layout class="content-shell">
         <a-layout-content class="content-area">
-          <a-spin :spinning="!fetched" :delay="200" size="large">
+          <a-spin :spinning="loading || !fetched" :delay="200" :tip="loading ? loadingTip : 'Loading…'" size="large">
             <div v-if="!fetched" class="loading-spacer" />
 
             <a-row v-else :gutter="[isMobile ? 8 : 16, isMobile ? 0 : 12]">
               <a-col :span="24">
-                <StatusCard :status="status" :is-mobile="isMobile" @open-cpu-history="onOpenCpuHistory" />
+                <StatusCard :status="status" :is-mobile="isMobile" @open-cpu-history="openCpuHistory" />
               </a-col>
+
               <a-col :sm="24" :lg="12">
                 <XrayStatusCard
                   :status="status"
@@ -91,27 +93,57 @@ function onOpenVersionSwitch() {
                   :ip-limit-enable="ipLimitEnable"
                   @stop-xray="stopXray"
                   @restart-xray="restartXray"
-                  @open-xray-logs="onOpenXrayLogs"
-                  @open-logs="onOpenLogs"
-                  @open-version-switch="onOpenVersionSwitch"
+                  @open-xray-logs="openXrayLogs"
+                  @open-logs="logsOpen = true"
+                  @open-version-switch="openVersionSwitch"
                 />
               </a-col>
+
               <a-col :sm="24" :lg="12">
-                <a-card hoverable>
-                  <a-space direction="vertical" :size="8" style="width: 100%">
-                    <h3 style="margin: 0">Dashboard scaffold</h3>
-                    <p style="margin: 0; opacity: 0.7">
-                      Phase 5c-iii wires the xray status card on the left.
-                      Panel update modal, logs / xray-logs / backup, and the
-                      custom-geo section arrive in 5c-iv and 5c-v.
-                    </p>
-                  </a-space>
+                <a-card title="Quick actions" hoverable>
+                  <template v-if="panelUpdateInfo.updateAvailable" #extra>
+                    <a-tooltip :title="`Update panel: ${panelUpdateInfo.latestVersion}`">
+                      <a-tag color="orange" class="update-tag" @click="panelUpdateOpen = true">
+                        <CloudDownloadOutlined />
+                        {{ panelUpdateInfo.latestVersion }}
+                        <span v-if="!isMobile">Update</span>
+                      </a-tag>
+                    </a-tooltip>
+                  </template>
+                  <template #actions>
+                    <a-space class="action" @click="logsOpen = true">
+                      <BarsOutlined />
+                      <span v-if="!isMobile">Logs</span>
+                    </a-space>
+                    <a-space class="action" @click="backupOpen = true">
+                      <CloudServerOutlined />
+                      <span v-if="!isMobile">Backup</span>
+                    </a-space>
+                    <a-space class="action" @click="panelUpdateOpen = true">
+                      <CloudDownloadOutlined />
+                      <span v-if="!isMobile">
+                        {{ panelUpdateInfo.updateAvailable ? `Update → ${panelUpdateInfo.latestVersion}` : 'Up to date' }}
+                      </span>
+                    </a-space>
+                  </template>
                 </a-card>
               </a-col>
             </a-row>
           </a-spin>
         </a-layout-content>
       </a-layout>
+
+      <PanelUpdateModal
+        v-model:open="panelUpdateOpen"
+        :info="panelUpdateInfo"
+        @busy="setBusy"
+      />
+      <LogModal v-model:open="logsOpen" />
+      <BackupModal
+        v-model:open="backupOpen"
+        :base-path="basePath"
+        @busy="setBusy"
+      />
     </a-layout>
   </a-config-provider>
 </template>
@@ -140,15 +172,23 @@ function onOpenVersionSwitch() {
   background: transparent;
 }
 
-.content-shell {
-  background: transparent;
-}
-
-.content-area {
-  padding: 24px;
-}
+.content-shell { background: transparent; }
+.content-area { padding: 24px; }
 
 .loading-spacer {
   min-height: calc(100vh - 120px);
 }
+
+.action {
+  cursor: pointer;
+  justify-content: center;
+}
+
+.update-tag {
+  cursor: pointer;
+  margin: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+}
 </style>
diff --git a/frontend/src/pages/index/LogModal.vue b/frontend/src/pages/index/LogModal.vue
new file mode 100644
index 00000000..f0f086ec
--- /dev/null
+++ b/frontend/src/pages/index/LogModal.vue
@@ -0,0 +1,160 @@
+<script setup>
+import { computed, ref, watch } from 'vue';
+import { DownloadOutlined, SyncOutlined } from '@ant-design/icons-vue';
+
+import { HttpUtil, FileManager, PromiseUtil } from '@/utils';
+
+const props = defineProps({
+  open: { type: Boolean, default: false },
+});
+
+const emit = defineEmits(['update:open']);
+
+const rows = ref('20');
+const level = ref('info');
+const syslog = ref(false);
+const loading = ref(false);
+const logs = ref([]);
+
+const LEVELS = ['DEBUG', 'INFO', 'NOTICE', 'WARNING', 'ERROR'];
+const LEVEL_COLORS = ['#3c89e8', '#008771', '#008771', '#f37b24', '#e04141', '#bcbcbc'];
+
+function escapeHtml(value) {
+  if (value == null) return '';
+  return String(value)
+    .replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;').replace(/'/g, '&#39;');
+}
+
+function formatLogs(lines) {
+  // Each line: "YYYY-MM-DD HH:MM:SS LEVEL - message"
+  // Color the timestamp + level prefix and bold the originating service.
+  let out = '';
+  lines.forEach((log, idx) => {
+    const [data, message] = log.split(' - ', 2);
+    const parts = data.split(' ');
+    if (idx > 0) out += '<br>';
+
+    if (parts.length === 3) {
+      const d = escapeHtml(parts[0]);
+      const t = escapeHtml(parts[1]);
+      const levelRaw = parts[2];
+      const li = LEVELS.indexOf(levelRaw);
+      const levelIndex = li >= 0 ? li : 5;
+      out += `<span style="color: ${LEVEL_COLORS[0]};">${d} ${t}</span> `;
+      out += `<span style="color: ${LEVEL_COLORS[levelIndex]}">${escapeHtml(levelRaw)}</span>`;
+    } else {
+      const li = LEVELS.indexOf(data);
+      const levelIndex = li >= 0 ? li : 5;
+      out += `<span style="color: ${LEVEL_COLORS[levelIndex]}">${escapeHtml(data)}</span>`;
+    }
+
+    if (message) {
+      const prefix = message.startsWith('XRAY:') ? '<b>XRAY: </b>' : '<b>X-UI: </b>';
+      const tail = message.startsWith('XRAY:') ? message.substring(5) : message;
+      out += ' - ' + prefix + escapeHtml(tail);
+    }
+  });
+  return out;
+}
+
+const formattedLogs = computed(() => (logs.value.length > 0 ? formatLogs(logs.value) : 'No Record...'));
+
+async function refresh() {
+  loading.value = true;
+  try {
+    const msg = await HttpUtil.post(`/panel/api/server/logs/${rows.value}`, {
+      level: level.value,
+      syslog: syslog.value,
+    });
+    if (msg?.success) {
+      logs.value = msg.obj || [];
+    }
+    // Keep the spinner visible long enough that rapid filter changes
+    // feel intentional rather than flickery.
+    await PromiseUtil.sleep(300);
+  } finally {
+    loading.value = false;
+  }
+}
+
+function close() {
+  emit('update:open', false);
+}
+
+function download() {
+  FileManager.downloadTextFile(logs.value.join('\n'), 'x-ui.log');
+}
+
+// Re-fetch whenever the modal opens or any filter changes.
+watch(() => props.open, (next) => { if (next) refresh(); });
+watch([rows, level, syslog], () => { if (props.open) refresh(); });
+</script>
+
+<template>
+  <a-modal :open="open" :closable="true" :footer="null" width="800px" @cancel="close">
+    <template #title>
+      Logs
+      <SyncOutlined :spin="loading" class="reload-icon" @click="refresh" />
+    </template>
+
+    <a-form layout="inline">
+      <a-form-item>
+        <a-input-group compact>
+          <a-select v-model:value="rows" size="small" :style="{ width: '70px' }">
+            <a-select-option value="10">10</a-select-option>
+            <a-select-option value="20">20</a-select-option>
+            <a-select-option value="50">50</a-select-option>
+            <a-select-option value="100">100</a-select-option>
+            <a-select-option value="500">500</a-select-option>
+          </a-select>
+          <a-select v-model:value="level" size="small" :style="{ width: '95px' }">
+            <a-select-option value="debug">Debug</a-select-option>
+            <a-select-option value="info">Info</a-select-option>
+            <a-select-option value="notice">Notice</a-select-option>
+            <a-select-option value="warning">Warning</a-select-option>
+            <a-select-option value="err">Error</a-select-option>
+          </a-select>
+        </a-input-group>
+      </a-form-item>
+      <a-form-item>
+        <a-checkbox v-model:checked="syslog">SysLog</a-checkbox>
+      </a-form-item>
+      <a-form-item style="margin-left: auto">
+        <a-button type="primary" @click="download">
+          <template #icon><DownloadOutlined /></template>
+        </a-button>
+      </a-form-item>
+    </a-form>
+
+    <div class="log-container" v-html="formattedLogs" />
+  </a-modal>
+</template>
+
+<style scoped>
+.reload-icon {
+  cursor: pointer;
+  vertical-align: middle;
+  margin-left: 10px;
+}
+
+.log-container {
+  margin-top: 12px;
+  padding: 10px 12px;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+  font-size: 12px;
+  line-height: 1.5;
+  white-space: pre-wrap;
+  word-break: break-word;
+  max-height: 60vh;
+  overflow-y: auto;
+  border: 1px solid rgba(128, 128, 128, 0.25);
+  border-radius: 6px;
+  background: rgba(0, 0, 0, 0.04);
+}
+
+:global(body.dark) .log-container {
+  background: rgba(255, 255, 255, 0.03);
+  border-color: rgba(255, 255, 255, 0.1);
+}
+</style>
diff --git a/frontend/src/pages/index/PanelUpdateModal.vue b/frontend/src/pages/index/PanelUpdateModal.vue
new file mode 100644
index 00000000..cb5a2b60
--- /dev/null
+++ b/frontend/src/pages/index/PanelUpdateModal.vue
@@ -0,0 +1,99 @@
+<script setup>
+import { Modal, message } from 'ant-design-vue';
+import { CloudDownloadOutlined } from '@ant-design/icons-vue';
+import { HttpUtil, PromiseUtil } from '@/utils';
+import axios from 'axios';
+
+const props = defineProps({
+  open: { type: Boolean, default: false },
+  info: {
+    type: Object,
+    default: () => ({ currentVersion: '', latestVersion: '', updateAvailable: false }),
+  },
+});
+
+const emit = defineEmits(['update:open', 'busy']);
+
+function close() {
+  emit('update:open', false);
+}
+
+function updatePanel() {
+  Modal.confirm({
+    title: 'Update panel',
+    content: `The panel will be updated to ${props.info.latestVersion || ''} and restarted. Continue?`,
+    okText: 'Confirm',
+    cancelText: 'Cancel',
+    onOk: async () => {
+      const tip = props.info.latestVersion
+        ? `Installation in progress, please do not refresh (${props.info.latestVersion})`
+        : 'Installation in progress, please do not refresh';
+      close();
+      emit('busy', { busy: true, tip });
+      const msg = await HttpUtil.post('/panel/api/server/updatePanel');
+      if (!msg?.success) {
+        emit('busy', { busy: false });
+        return;
+      }
+      // Wait for the running process to exit, then poll the new panel
+      // until it answers (up to ~90s). Reload as soon as it's back.
+      await PromiseUtil.sleep(5000);
+      const deadline = Date.now() + 90_000;
+      let back = false;
+      while (Date.now() < deadline) {
+        try {
+          const r = await axios.get('/panel/api/server/status', { timeout: 2000 });
+          if (r?.data?.success) { back = true; break; }
+        } catch (_) { /* still restarting */ }
+        await PromiseUtil.sleep(2000);
+      }
+      if (back) {
+        message.success('Panel update started');
+        await PromiseUtil.sleep(800);
+      }
+      window.location.reload();
+    },
+  });
+}
+</script>
+
+<template>
+  <a-modal :open="open" title="Update panel" :closable="true" :footer="null" @cancel="close">
+    <a-alert
+      v-if="info.updateAvailable"
+      type="warning"
+      class="mb-12"
+      message="A new panel version is available. Update will restart the service."
+      show-icon
+    />
+
+    <a-list bordered class="version-list">
+      <a-list-item class="version-list-item">
+        <span>Current version</span>
+        <a-tag color="green">v{{ info.currentVersion || 'unknown' }}</a-tag>
+      </a-list-item>
+      <a-list-item v-if="info.updateAvailable" class="version-list-item">
+        <span>Latest version</span>
+        <a-tag color="purple">{{ info.latestVersion || '-' }}</a-tag>
+      </a-list-item>
+      <a-list-item v-else class="version-list-item">
+        <span>Panel is up to date</span>
+        <a-tag color="green">Up to date</a-tag>
+      </a-list-item>
+    </a-list>
+
+    <div class="actions-row">
+      <a-button type="primary" :disabled="!info.updateAvailable" @click="updatePanel">
+        <template #icon><CloudDownloadOutlined /></template>
+        Update panel
+      </a-button>
+    </div>
+  </a-modal>
+</template>
+
+<style scoped>
+.mb-12 { margin-bottom: 12px; }
+.version-list { width: 100%; }
+.version-list-item { display: flex; justify-content: space-between; }
+.actions-row { display: flex; justify-content: flex-end; margin-top: 12px; }
+</style>