diff --git a/cwd-admin/src/views/AnalyticsVisitView.vue b/cwd-admin/src/views/AnalyticsVisitView.vue
index 79b8fff..20e8d86 100644
--- a/cwd-admin/src/views/AnalyticsVisitView.vue
+++ b/cwd-admin/src/views/AnalyticsVisitView.vue
@@ -135,6 +135,7 @@ const overview = ref<VisitOverviewResponse>({
 });
 const items = ref<VisitPageItem[]>([]);
 const visitTab = ref<"pv" | "latest">("pv");
+const visitTabStorageKey = "cwd-analytics-visit-tab";
 
 const injectedDomainFilter = inject<Ref<string> | null>("domainFilter", null);
 const domainFilter = injectedDomainFilter ?? ref("");
@@ -212,6 +213,29 @@ function getVisitOrderParam(): "pv" | "latest" | undefined {
   return undefined;
 }
 
+function loadVisitTabFromStorage() {
+  if (typeof window === "undefined") {
+    return;
+  }
+  try {
+    const value = window.localStorage.getItem(visitTabStorageKey);
+    if (value === "pv" || value === "latest") {
+      visitTab.value = value;
+    }
+  } catch {
+  }
+}
+
+function saveVisitTabToStorage(value: "pv" | "latest") {
+  if (typeof window === "undefined") {
+    return;
+  }
+  try {
+    window.localStorage.setItem(visitTabStorageKey, value);
+  } catch {
+  }
+}
+
 async function loadData() {
   loading.value = true;
   listLoading.value = true;
@@ -273,6 +297,7 @@ function changeVisitTab(tab: "pv" | "latest") {
     return;
   }
   visitTab.value = tab;
+  saveVisitTabToStorage(tab);
   loadVisitPagesOnly();
 }
 
@@ -338,6 +363,7 @@ function handleResize() {
 }
 
 onMounted(() => {
+  loadVisitTabFromStorage();
   loadData();
   window.addEventListener("resize", handleResize);
 });
diff --git a/docs/api/public.md b/docs/api/public.md
index fa50c4a..3868451 100644
--- a/docs/api/public.md
+++ b/docs/api/public.md
@@ -381,6 +381,7 @@ POST /api/verify-admin
 
 **风控说明**
 
+- 本地密钥存活时间 72 小时
 - 同一 IP 连续验证失败 3 次后，该 IP 将被锁定 30 分钟
 - 失败次数记录有效期为 1 小时
 
diff --git a/docs/widget/src/utils/auth.js b/docs/widget/src/utils/auth.js
index 2d440de..fc38a05 100644
--- a/docs/widget/src/utils/auth.js
+++ b/docs/widget/src/utils/auth.js
@@ -1,5 +1,5 @@
 const STORAGE_KEY = 'cwd_admin_auth';
-const EXPIRY_MS = 12 * 60 * 60 * 1000; // 12 hours
+const EXPIRY_MS = 72 * 60 * 60 * 1000; // 72 hours
 
 // Simple obfuscation (not real encryption, but sufficient for local storage requirement if no sensitive data other than the key itself which is already shared)
 // Requirement says "Local storage key credential needs to be encrypted".