diff --git a/apps/ops-web/src/App.vue b/apps/ops-web/src/App.vue
index 97bc225..f7f8d8e 100644
--- a/apps/ops-web/src/App.vue
+++ b/apps/ops-web/src/App.vue
@@ -1,5 +1,5 @@
 <template>
-  <a-config-provider>
+  <a-config-provider :theme="themeConfig">
     <a-app>
       <router-view />
     </a-app>
@@ -13,6 +13,15 @@ import { useAuthStore } from "@/stores/auth";
 
 const auth = useAuthStore();
 
+const themeConfig = {
+  token: {
+    colorPrimary: "#4f46e5",
+    colorLink: "#4f46e5",
+    colorInfo: "#4f46e5",
+    borderRadius: 6,
+  },
+};
+
 onMounted(() => {
   if (!auth.initialized) auth.hydrate();
 });
diff --git a/apps/ops-web/src/layouts/AppShell.vue b/apps/ops-web/src/layouts/AppShell.vue
index 8f1d5f6..d546101 100644
--- a/apps/ops-web/src/layouts/AppShell.vue
+++ b/apps/ops-web/src/layouts/AppShell.vue
@@ -138,14 +138,14 @@ onMounted(() => {
 
 .ops-brand {
   height: 40px;
-  background: #f0f8ff;
-  border: 1px solid #bae0ff;
+  background: #eef2ff;
+  border: 1px solid #c7d2fe;
   margin: 16px;
   border-radius: 6px;
   display: flex;
   align-items: center;
   justify-content: center;
-  color: #1677ff;
+  color: #4f46e5;
   font-weight: 800;
   font-size: 16px;
   letter-spacing: 0.05em;
@@ -195,7 +195,7 @@ onMounted(() => {
 }
 
 .user-avatar {
-  background-color: #1677ff;
+  background-color: #4f46e5;
   color: #fff;
   width: 28px;
   height: 28px;
diff --git a/apps/ops-web/src/lib/http.ts b/apps/ops-web/src/lib/http.ts
index 4f5a96d..1419e9e 100644
--- a/apps/ops-web/src/lib/http.ts
+++ b/apps/ops-web/src/lib/http.ts
@@ -44,7 +44,7 @@ const client: AxiosInstance = axios.create({
 });
 
 client.interceptors.request.use((config) => {
-  const session = readStoredSession();
+  const { session } = readStoredSession();
   if (session.accessToken) {
     config.headers = config.headers ?? {};
     config.headers["Authorization"] = `Bearer ${session.accessToken}`;
diff --git a/apps/ops-web/src/lib/storage.ts b/apps/ops-web/src/lib/storage.ts
index 6b6f4b8..66c0baf 100644
--- a/apps/ops-web/src/lib/storage.ts
+++ b/apps/ops-web/src/lib/storage.ts
@@ -1,4 +1,5 @@
-const STORAGE_KEY = "geo.ops-web.session";
+const SESSION_KEY = "geo.ops-web.session";
+const PREFERENCE_KEY = "geo.ops-web.login-preference";
 
 export interface OperatorView {
   id: number;
@@ -15,22 +16,36 @@ export interface OpsSession {
   operator: OperatorView | null;
 }
 
+export interface LoginPreference {
+  remember: boolean;
+  lastUsername: string;
+}
+
+export interface StoredSession {
+  session: OpsSession;
+  persistent: boolean;
+}
+
 function emptySession(): OpsSession {
   return { accessToken: null, expiresAt: null, operator: null };
 }
 
-function hasStorage(): boolean {
-  return typeof window !== "undefined" && "localStorage" in window;
+function emptyPreference(): LoginPreference {
+  return { remember: false, lastUsername: "" };
 }
 
-export function readStoredSession(): OpsSession {
-  if (!hasStorage()) return emptySession();
+function hasWindow(): boolean {
+  return typeof window !== "undefined";
+}
+
+function readFrom(storage: Storage): OpsSession | null {
   try {
-    const raw = window.localStorage.getItem(STORAGE_KEY);
-    if (!raw) return emptySession();
+    const raw = storage.getItem(SESSION_KEY);
+    if (!raw) return null;
     const parsed = JSON.parse(raw) as Partial<OpsSession>;
+    if (typeof parsed.accessToken !== "string" || !parsed.accessToken) return null;
     return {
-      accessToken: typeof parsed.accessToken === "string" ? parsed.accessToken : null,
+      accessToken: parsed.accessToken,
       expiresAt: typeof parsed.expiresAt === "number" ? parsed.expiresAt : null,
       operator:
         parsed.operator && typeof parsed.operator === "object"
@@ -38,23 +53,68 @@ export function readStoredSession(): OpsSession {
           : null,
     };
   } catch {
-    return emptySession();
+    return null;
   }
 }
 
-export function writeStoredSession(session: OpsSession): void {
-  if (!hasStorage()) return;
+export function readStoredSession(): StoredSession {
+  if (!hasWindow()) return { session: emptySession(), persistent: false };
+  const persistent = readFrom(window.localStorage);
+  if (persistent) return { session: persistent, persistent: true };
+  const ephemeral = readFrom(window.sessionStorage);
+  if (ephemeral) return { session: ephemeral, persistent: false };
+  return { session: emptySession(), persistent: false };
+}
+
+export function writeStoredSession(session: OpsSession, persistent: boolean): void {
+  if (!hasWindow()) return;
+  const target = persistent ? window.localStorage : window.sessionStorage;
+  const other = persistent ? window.sessionStorage : window.localStorage;
   try {
-    window.localStorage.setItem(STORAGE_KEY, JSON.stringify(session));
+    target.setItem(SESSION_KEY, JSON.stringify(session));
   } catch {
     // ignore quota / serialization errors
   }
-}
-
-export function clearStoredSession(): void {
-  if (!hasStorage()) return;
   try {
-    window.localStorage.removeItem(STORAGE_KEY);
+    other.removeItem(SESSION_KEY);
+  } catch {
+    // noop
+  }
+}
+
+export function clearStoredSession(): void {
+  if (!hasWindow()) return;
+  try {
+    window.localStorage.removeItem(SESSION_KEY);
+  } catch {
+    // noop
+  }
+  try {
+    window.sessionStorage.removeItem(SESSION_KEY);
+  } catch {
+    // noop
+  }
+}
+
+export function readLoginPreference(): LoginPreference {
+  if (!hasWindow()) return emptyPreference();
+  try {
+    const raw = window.localStorage.getItem(PREFERENCE_KEY);
+    if (!raw) return emptyPreference();
+    const parsed = JSON.parse(raw) as Partial<LoginPreference>;
+    return {
+      remember: parsed.remember === true,
+      lastUsername: typeof parsed.lastUsername === "string" ? parsed.lastUsername : "",
+    };
+  } catch {
+    return emptyPreference();
+  }
+}
+
+export function writeLoginPreference(pref: LoginPreference): void {
+  if (!hasWindow()) return;
+  try {
+    window.localStorage.setItem(PREFERENCE_KEY, JSON.stringify(pref));
   } catch {
     // noop
   }
diff --git a/apps/ops-web/src/stores/auth.ts b/apps/ops-web/src/stores/auth.ts
index a2d8752..9a929af 100644
--- a/apps/ops-web/src/stores/auth.ts
+++ b/apps/ops-web/src/stores/auth.ts
@@ -5,7 +5,9 @@ import { http } from "@/lib/http";
 import {
   type OperatorView,
   clearStoredSession,
+  readLoginPreference,
   readStoredSession,
+  writeLoginPreference,
   writeStoredSession,
 } from "@/lib/storage";
 
@@ -20,25 +22,32 @@ export const useAuthStore = defineStore("ops-auth", () => {
   const expiresAt = ref<number | null>(null);
   const operator = ref<OperatorView | null>(null);
   const initialized = ref(false);
+  const persistent = ref(false);
 
   function hydrate(): void {
     const stored = readStoredSession();
-    accessToken.value = stored.accessToken;
-    expiresAt.value = stored.expiresAt;
-    operator.value = stored.operator;
+    accessToken.value = stored.session.accessToken;
+    expiresAt.value = stored.session.expiresAt;
+    operator.value = stored.session.operator;
+    persistent.value = stored.persistent;
     initialized.value = true;
   }
 
-  async function login(username: string, password: string): Promise<void> {
+  async function login(username: string, password: string, remember: boolean): Promise<void> {
     const result = await http.post<LoginResponse>("/auth/login", { username, password });
     accessToken.value = result.access_token;
     expiresAt.value = result.expires_at;
     operator.value = result.operator;
-    writeStoredSession({
-      accessToken: result.access_token,
-      expiresAt: result.expires_at,
-      operator: result.operator,
-    });
+    persistent.value = remember;
+    writeStoredSession(
+      {
+        accessToken: result.access_token,
+        expiresAt: result.expires_at,
+        operator: result.operator,
+      },
+      remember,
+    );
+    writeLoginPreference({ remember, lastUsername: username });
   }
 
   async function refreshSelf(): Promise<void> {
@@ -53,11 +62,14 @@ export const useAuthStore = defineStore("ops-auth", () => {
         role: me.role,
         status: me.status,
       };
-      writeStoredSession({
-        accessToken: accessToken.value,
-        expiresAt: expiresAt.value,
-        operator: operator.value,
-      });
+      writeStoredSession(
+        {
+          accessToken: accessToken.value,
+          expiresAt: expiresAt.value,
+          operator: operator.value,
+        },
+        persistent.value,
+      );
     } catch {
       logout();
     }
@@ -67,6 +79,7 @@ export const useAuthStore = defineStore("ops-auth", () => {
     accessToken.value = null;
     expiresAt.value = null;
     operator.value = null;
+    persistent.value = false;
     clearStoredSession();
   }
 
@@ -78,9 +91,11 @@ export const useAuthStore = defineStore("ops-auth", () => {
     operator,
     initialized,
     isAuthenticated,
+    persistent,
     hydrate,
     login,
     refreshSelf,
     logout,
+    readLoginPreference,
   };
 });
diff --git a/apps/ops-web/src/views/LoginView.vue b/apps/ops-web/src/views/LoginView.vue
index 5d0f491..53c79c9 100644
--- a/apps/ops-web/src/views/LoginView.vue
+++ b/apps/ops-web/src/views/LoginView.vue
@@ -72,11 +72,12 @@
 </template>
 
 <script setup lang="ts">
-import { reactive, ref } from "vue";
+import { onMounted, reactive, ref } from "vue";
 import { useRoute, useRouter } from "vue-router";
 import { StarOutlined, EyeOutlined, EyeInvisibleOutlined } from "@ant-design/icons-vue";
 
 import { OpsApiError } from "@/lib/http";
+import { readLoginPreference } from "@/lib/storage";
 import { useAuthStore } from "@/stores/auth";
 import AnimatedCharacters from "@/components/login-animation/AnimatedCharacters.vue";
 
@@ -89,7 +90,7 @@ const primaryColor = ref('#4f46e5');
 const submitting = ref(false);
 const showPassword = ref(false);
 const isTyping = ref(false);
-const remember = ref(false);
+const remember = ref(true);
 const errorMessage = ref<string | null>(null);
 
 const formState = reactive({
@@ -97,6 +98,14 @@ const formState = reactive({
   password: "",
 });
 
+onMounted(() => {
+  const pref = readLoginPreference();
+  remember.value = pref.remember;
+  if (pref.lastUsername) {
+    formState.username = pref.lastUsername;
+  }
+});
+
 async function handleSubmit(): Promise<void> {
   if (submitting.value) {
     return;
@@ -111,7 +120,7 @@ async function handleSubmit(): Promise<void> {
   submitting.value = true;
 
   try {
-    await authStore.login(formState.username.trim(), formState.password);
+    await authStore.login(formState.username.trim(), formState.password, remember.value);
     const redirect = typeof route.query.redirect === "string" ? route.query.redirect : "/admin-users";
     await router.replace(redirect);
   } catch (error) {