diff --git a/assets/admin/src/schema/sections/tools/frontend-modal-rollout.js b/assets/admin/src/schema/sections/tools/frontend-modal-rollout.js
index a3f9ca43..5bd22200 100644
--- a/assets/admin/src/schema/sections/tools/frontend-modal-rollout.js
+++ b/assets/admin/src/schema/sections/tools/frontend-modal-rollout.js
@@ -4,10 +4,10 @@ export const frontendModalRolloutSchema = {
   icon: 'fas fa-bolt',
   description: '按领域控制前台弹窗新流程的分阶段发布。',
   defaults: {
-    frontend_modal_rollout_identity: false,
-    frontend_modal_rollout_badge: false,
-    frontend_modal_rollout_order: false,
-    frontend_modal_rollout_vip: false,
+    frontend_modal_rollout_identity: true,
+    frontend_modal_rollout_badge: true,
+    frontend_modal_rollout_order: true,
+    frontend_modal_rollout_vip: true,
   },
   groups: [
     {
diff --git a/assets/js/core/modal-cache.js b/assets/js/core/modal-cache.js
index c7fe8eaf..e5003d41 100644
--- a/assets/js/core/modal-cache.js
+++ b/assets/js/core/modal-cache.js
@@ -10,11 +10,15 @@
   var DEFAULT_TTL = 15000;
   var entries = Object.create(null);
   var flights = Object.create(null);
+  var lastScope = "";
 
   function scope() {
     var config = window.aksrtData || window.aksrt || {};
     var userId = parseInt(config.userId || 0, 10) || 0;
-    return (config.isLoggedIn && userId > 0 ? "user:" + userId : "guest") + ":v1";
+    var current = (config.isLoggedIn && userId > 0 ? "user:" + userId : "guest") + ":v1";
+    if (lastScope && lastScope !== current) clear();
+    lastScope = current;
+    return current;
   }
 
   function token(key) {
diff --git a/assets/js/core/modal-runtime.js b/assets/js/core/modal-runtime.js
index 331ca376..8258e1fa 100644
--- a/assets/js/core/modal-runtime.js
+++ b/assets/js/core/modal-runtime.js
@@ -342,11 +342,12 @@
       },
     };
 
-    session.flight = cacheable
+    var flight = cacheable
       ? cache.acquire(cacheKey, request, acquireOptions)
       : { promise: request(), release: function () {} };
+    session.flight = flight;
 
-    return session.flight.promise.then(function (result) {
+    return flight.promise.then(function (result) {
       if (!session.closed && active === session) renderResult(session, result);
       return session.shell;
     }).catch(function (error) {
@@ -354,8 +355,12 @@
       if (!aborted && !session.closed && active === session) renderError(session, error);
       return session.shell;
     }).then(function (shell) {
-      if (session.flight && typeof session.flight.release === "function") session.flight.release();
-      session.flight = null;
+      // A refresh/replacement may have installed a newer flight on this session.
+      // Only the owner of this promise may release and clear the slot.
+      if (session.flight === flight) {
+        if (flight && typeof flight.release === "function") flight.release();
+        session.flight = null;
+      }
       return shell;
     });
   }
diff --git a/assets/js/order-center.js b/assets/js/order-center.js
index 18bfc00c..ae5169e7 100644
--- a/assets/js/order-center.js
+++ b/assets/js/order-center.js
@@ -13,6 +13,9 @@
 
     var detailOrderNumber = "";
     var detailAutoRefreshStarted = false;
+    var detailSession = null;
+    var detailReplacement = false;
+    var detailReplacementSession = null;
 
     function toast(message, type) {
         window.AksrtToast(message, type || "info");
@@ -48,7 +51,12 @@
     }
 
     function activeDetail(number) {
-        return detailOrderNumber === number && !!window.AksrtModalRuntime.getActive();
+        return detailOrderNumber === number
+            && !!detailSession
+            && !detailSession.closed
+            && detailSession.options
+            && detailSession.options.kind === "orders"
+            && window.AksrtModalRuntime.getActive() === detailSession.shell;
     }
 
     function orderTag(orderNumber) {
@@ -115,8 +123,12 @@
             cacheKey: "orders:detail:" + orderNumber,
             cacheTags: ["orders", orderTag(orderNumber)],
             skeleton: detailSkeleton(),
+            onState: function (_, session) {
+                if (orderNumber === detailOrderNumber) detailSession = session;
+            },
             renderData: function (data, session) {
                 if (orderNumber !== detailOrderNumber) return false;
+                detailSession = session;
                 if (!data || typeof data !== "object") {
                     session.content.innerHTML = '<p class="c-red">订单不存在</p>';
                     return;
@@ -137,6 +149,9 @@
 
     function openDetail(orderNumber) {
         if (!orderNumber) return;
+        detailSession = null;
+        detailReplacement = false;
+        detailReplacementSession = null;
         detailOrderNumber = orderNumber;
         detailAutoRefreshStarted = false;
         window.AksrtModalRuntime.openRemote(detailOptions(orderNumber, false));
@@ -144,7 +159,16 @@
 
     function refreshDetail(orderNumber) {
         if (!orderNumber || !activeDetail(orderNumber)) return;
-        window.AksrtModalRuntime.openRemote(detailOptions(orderNumber, true));
+        detailReplacement = true;
+        detailReplacementSession = detailSession;
+        var refreshPromise = window.AksrtModalRuntime.openRemote(detailOptions(orderNumber, true));
+        refreshPromise.then(function () {
+            detailReplacement = false;
+            detailReplacementSession = null;
+        }, function () {
+            detailReplacement = false;
+            detailReplacementSession = null;
+        });
     }
 
     function currentViewPath() {
@@ -301,6 +325,17 @@
         if (cancel) { event.preventDefault(); closeOrder(cancel); }
     });
 
+    document.addEventListener("aksrt:modal:close", function (event) {
+        var detail = event && event.detail ? event.detail : {};
+        if (!detailSession || detail.session !== detailSession) return;
+        if (detail.reason === "replace" && detailReplacement && detail.session === detailReplacementSession) return;
+        detailSession = null;
+        detailOrderNumber = "";
+        detailAutoRefreshStarted = false;
+        detailReplacement = false;
+        detailReplacementSession = null;
+    });
+
     document.addEventListener("click", function (event) {
         var refresh = event.target.closest("[data-aksrt-order-refresh]");
         if (refresh) {
diff --git a/assets/js/vip-purchase-coordinator.js b/assets/js/vip-purchase-coordinator.js
index ebf59992..90810066 100644
--- a/assets/js/vip-purchase-coordinator.js
+++ b/assets/js/vip-purchase-coordinator.js
@@ -16,6 +16,8 @@
   var MAX_DELAY = 15000;
   var createFlights = Object.create(null);
   var polls = Object.create(null);
+  var lastScope = "";
+  var scopeGeneration = 0;
   var SUCCESS_STATUSES = {
     paid: true,
     delivered: true,
@@ -32,14 +34,21 @@
   function userScope() {
     var config = window.aksrtData || window.aksrt || {};
     var userId = parseInt(config.userId || config.user_id || 0, 10) || 0;
-    if (userId > 0) return "user:" + userId;
-    return config.isLoggedIn ? "auth" : "guest";
+    var current = userId > 0 ? "user:" + userId : (config.isLoggedIn ? "auth" : "guest");
+    if (lastScope && lastScope !== current) clearFlights();
+    lastScope = current;
+    return current;
   }
 
   function clearFlights() {
+    scopeGeneration += 1;
+    Object.keys(createFlights).forEach(function (key) {
+      var flight = createFlights[key];
+      if (flight && typeof flight.cancel === "function") flight.cancel();
+    });
     createFlights = Object.create(null);
-    Object.keys(polls).forEach(function (orderNumber) {
-      var active = polls[orderNumber];
+    Object.keys(polls).forEach(function (pollKey) {
+      var active = polls[pollKey];
       if (active && active.handle && typeof active.handle.abort === "function") active.handle.abort();
     });
     polls = Object.create(null);
@@ -84,6 +93,9 @@
   function callback(options, name) {
     var args = Array.prototype.slice.call(arguments, 2);
     if (!options || typeof options[name] !== "function") return;
+    if (options.scope && userScope() !== options.scope) return;
+    if (options.generation !== undefined && scopeGeneration !== options.generation) return;
+    if (typeof options.isActive === "function" && !options.isActive()) return;
     try {
       options[name].apply(null, args);
     } catch (error) {
@@ -102,25 +114,41 @@
     }
 
     var key = userScope() + ":" + String(packageId) + ":" + method;
-    if (createFlights[key]) return createFlights[key];
+    if (createFlights[key]) return createFlights[key].promise;
 
-    var promise = request("/pay/vip", {
-      method: "POST",
-      body: JSON.stringify({
-        package_id: packageId,
-        payment_method: method,
+    var requestController = !options.signal && window.AbortController
+      ? new window.AbortController()
+      : null;
+    var flight = {
+      promise: request("/pay/vip", {
+        method: "POST",
+        body: JSON.stringify({
+          package_id: packageId,
+          payment_method: method,
+        }),
+        signal: options.signal || (requestController ? requestController.signal : undefined),
       }),
-      signal: options.signal,
+      cancel: function () {
+        if (typeof options.cancel === "function") {
+          try { options.cancel(); } catch (error) {}
+        }
+        if (requestController) {
+          try { requestController.abort(); } catch (error) {}
+        }
+      },
+    };
+    createFlights[key] = flight;
+    flight.promise.then(function () {
+      if (createFlights[key] === flight) delete createFlights[key];
+    }, function () {
+      if (createFlights[key] === flight) delete createFlights[key];
     });
-    createFlights[key] = promise;
-    promise.then(function () {
-      if (createFlights[key] === promise) delete createFlights[key];
-    });
-    return promise;
+    return flight.promise;
   }
 
   function exchange(options) {
     options = options || {};
+    userScope();
     var packageId = parseInt(options.packageId || options.package_id || 0, 10);
     if (!packageId) {
       return Promise.resolve({ ok: false, status: 400, json: { message: "兑换套餐无效" } });
@@ -145,7 +173,7 @@
   }
 
   function poll(orderNumber, options) {
-    options = options || {};
+    options = Object.assign({}, options || {});
     orderNumber = String(orderNumber || "");
     if (!orderNumber) {
       return {
@@ -153,7 +181,12 @@
         abort: function () {},
       };
     }
-    if (polls[orderNumber]) return polls[orderNumber].handle;
+    var pollScope = userScope();
+    var pollGeneration = scopeGeneration;
+    if (!options.scope) options.scope = pollScope;
+    if (options.generation === undefined) options.generation = pollGeneration;
+    var pollKey = pollScope + ":" + orderNumber;
+    if (polls[pollKey]) return polls[pollKey].handle;
 
     var maxAttempts = Math.max(1, Number(options.maxAttempts || DEFAULT_MAX_ATTEMPTS));
     var maxElapsed = Math.max(1000, Number(options.maxElapsed || DEFAULT_MAX_ELAPSED));
@@ -190,11 +223,16 @@
         state.controller = null;
       }
       if (state.onVisibility) document.removeEventListener("visibilitychange", state.onVisibility);
-      if (polls[orderNumber] && polls[orderNumber].handle === state.handle) delete polls[orderNumber];
+      if (polls[pollKey] && polls[pollKey].handle === state.handle) delete polls[pollKey];
       state.resolve(result);
     }
 
     function terminal(data, response, status) {
+      if ((options.scope && userScope() !== options.scope)
+        || (options.generation !== undefined && scopeGeneration !== options.generation)) {
+        finish({ terminal: false, aborted: true, status: "scope_changed" });
+        return;
+      }
       var success = !!(data && data.paid) || !!SUCCESS_STATUSES[status];
       invalidate(options.tags || ["vip", "orders"]);
       callback(options, "onTerminal", {
@@ -226,6 +264,8 @@
     function run() {
       state.timer = null;
       if (state.done || state.aborted) return;
+      // Detect account transitions and explicit auth resets even when no event reached this page.
+      if (userScope() !== pollScope || scopeGeneration !== pollGeneration || state.done || state.aborted) return;
       if (document.hidden) {
         state.waitingForVisible = true;
         return;
@@ -289,7 +329,7 @@
         finish({ terminal: false, aborted: true, status: "aborted" });
       },
     };
-    polls[orderNumber] = state;
+    polls[pollKey] = state;
     schedule(0);
     return state.handle;
   }
@@ -299,9 +339,23 @@
     var activePoll = null;
     var stopped = false;
     var controller = window.AbortController ? new window.AbortController() : null;
+    var startScope = userScope();
+    var startGeneration = scopeGeneration;
     if (controller) options.signal = controller.signal;
+    options.scope = startScope;
+    options.generation = startGeneration;
+    options.isActive = function () {
+      return !stopped && scopeGeneration === startGeneration && userScope() === startScope;
+    };
+    options.cancel = function () {
+      if (controller) {
+        try { controller.abort(); } catch (error) {}
+      }
+    };
     var promise = purchase(options).then(function (response) {
-      if (stopped) return { ok: false, aborted: true, status: "aborted" };
+      if (!options.isActive()) {
+        return { ok: false, aborted: true, status: stopped ? "aborted" : "scope_changed" };
+      }
       var data = response.data || response.json || {};
       if (!response.ok) {
         callback(options, "onError", response);
@@ -314,6 +368,9 @@
           callback(options, "onError", missing);
           return missing;
         }
+        if (!options.isActive()) {
+          return { ok: false, aborted: true, status: "scope_changed" };
+        }
         activePoll = poll(data.order_number, options);
         activePoll.promise.then(function (result) {
           if (result.success) callback(options, "onSuccess", result);
@@ -326,6 +383,9 @@
           poll: activePoll,
         };
       }
+      if (!options.isActive()) {
+        return { ok: false, aborted: true, status: "scope_changed" };
+      }
       invalidate(options.tags || ["vip", "orders"]);
       callback(options, "onSuccess", { terminal: true, success: true, data: data, response: response });
       return { ok: true, pending: false, data: data, response: response };
@@ -335,9 +395,7 @@
       promise: promise,
       abort: function () {
         stopped = true;
-        if (controller) {
-          try { controller.abort(); } catch (error) {}
-        }
+        options.cancel();
         if (activePoll && typeof activePoll.abort === "function") activePoll.abort();
       },
     };
@@ -349,7 +407,8 @@
     poll: poll,
     start: start,
     abort: function (orderNumber) {
-      var active = polls[String(orderNumber || "")];
+      var key = userScope() + ":" + String(orderNumber || "");
+      var active = polls[key];
       if (active && active.handle) active.handle.abort();
     },
   };
diff --git a/src/Admin/Schema/SchemaToolsFrontendModalRollout.php b/src/Admin/Schema/SchemaToolsFrontendModalRollout.php
index acaa428a..6f7a4871 100644
--- a/src/Admin/Schema/SchemaToolsFrontendModalRollout.php
+++ b/src/Admin/Schema/SchemaToolsFrontendModalRollout.php
@@ -24,28 +24,28 @@ class SchemaToolsFrontendModalRollout {
                             'key'     => 'frontend_modal_rollout_identity',
                             'label'   => '官方认证新流程',
                             'type'    => 'switch',
-                            'default' => false,
+                            'default' => true,
                             'help'    => '启用统一弹窗运行时与认证快照流程。',
                         ],
                         [
                             'key'     => 'frontend_modal_rollout_badge',
                             'label'   => '徽章新流程',
                             'type'    => 'switch',
-                            'default' => false,
+                            'default' => true,
                             'help'    => '启用统一 JSON 徽章流程和短缓存。',
                         ],
                         [
                             'key'     => 'frontend_modal_rollout_order',
                             'label'   => '订单新流程',
                             'type'    => 'switch',
-                            'default' => false,
+                            'default' => true,
                             'help'    => '启用订单详情快速开壳与状态同步流程。',
                         ],
                         [
                             'key'     => 'frontend_modal_rollout_vip',
                             'label'   => '会员支付新流程',
                             'type'    => 'switch',
-                            'default' => false,
+                            'default' => true,
                             'help'    => '启用统一会员购买、支付和结果同步流程。',
                         ],
                     ],
diff --git a/src/Core/ScriptsPart1c.php b/src/Core/ScriptsPart1c.php
index bd5dbff9..51efb439 100644
--- a/src/Core/ScriptsPart1c.php
+++ b/src/Core/ScriptsPart1c.php
@@ -575,10 +575,10 @@ trait ScriptsPart1c {
             // Alias used by modal-auth / follow / report (same value as restUrl).
             'apiUrl'                => esc_url_raw(rest_url('aksrt/v1')),
             'frontendModalRollout'  => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_frontend_modal_rollout() : [
-                'vip'      => false,
-                'order'    => false,
-                'identity' => false,
-                'badge'    => false,
+                'vip'      => true,
+                'order'    => true,
+                'identity' => true,
+                'badge'    => true,
             ],
             'stickyEnabled'         => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_post_list_style_settings()['sticky_enabled'] : true,
             'stickyPages'           => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_post_list_style_settings()['sticky_pages'] : ['home', 'cat'],
diff --git a/src/Settings/FrontendModalRuntime.php b/src/Settings/FrontendModalRuntime.php
index 05a45cf2..79ddbeb4 100644
--- a/src/Settings/FrontendModalRuntime.php
+++ b/src/Settings/FrontendModalRuntime.php
@@ -20,10 +20,12 @@ class FrontendModalRuntime {
         $settings = Settings::get_all();
 
         return [
-            'vip'      => !empty($settings['frontend_modal_rollout_vip']),
-            'order'    => !empty($settings['frontend_modal_rollout_order']),
-            'identity' => !empty($settings['frontend_modal_rollout_identity']),
-            'badge'    => !empty($settings['frontend_modal_rollout_badge']),
+            // Canonical-only flows must be live when the option has never been configured.
+            // An explicit false remains an intentional per-domain kill switch.
+            'vip'      => !array_key_exists('frontend_modal_rollout_vip', $settings) || !empty($settings['frontend_modal_rollout_vip']),
+            'order'    => !array_key_exists('frontend_modal_rollout_order', $settings) || !empty($settings['frontend_modal_rollout_order']),
+            'identity' => !array_key_exists('frontend_modal_rollout_identity', $settings) || !empty($settings['frontend_modal_rollout_identity']),
+            'badge'    => !array_key_exists('frontend_modal_rollout_badge', $settings) || !empty($settings['frontend_modal_rollout_badge']),
         ];
     }
 }