diff --git a/assets/admin/src/constants/sections/tools.js b/assets/admin/src/constants/sections/tools.js
index 253abd94..7b45ce81 100644
--- a/assets/admin/src/constants/sections/tools.js
+++ b/assets/admin/src/constants/sections/tools.js
@@ -25,6 +25,16 @@ export const toolsSection = {
       canonicalDomain: 'tools',
       section: 'backup',
     }),
+    schemaPage({
+      key: 'tools-modal-rollout',
+      name: 'ToolsModalRollout',
+      label: '前台弹窗灰度',
+      route: '/tools/modal-rollout',
+      title: '前台弹窗灰度',
+      desc: '按领域控制前台弹窗新流程的分阶段发布。',
+      canonicalDomain: 'tools',
+      section: 'modal-rollout',
+    }),
     customPage({
       key: 'tools-health',
       name: 'ToolsHealth',
diff --git a/assets/admin/src/schema/sections/tools/index.js b/assets/admin/src/schema/sections/tools/index.js
index 603b9d52..1a12528c 100644
--- a/assets/admin/src/schema/sections/tools/index.js
+++ b/assets/admin/src/schema/sections/tools/index.js
@@ -7,10 +7,12 @@ import { importExportSchema } from './import-export.js'
 import { healthSchema } from './health.js'
 import { emailRollbackSchema } from './email-rollback.js'
 import { backupSchema } from './backup.js'
+import { modalRolloutSchema } from './modal-rollout.js'
 
 export const toolsSchemas = {
   'import-export': importExportSchema,
   health: healthSchema,
   'email-rollback': emailRollbackSchema,
   backup: backupSchema,
+  'modal-rollout': modalRolloutSchema,
 }
diff --git a/assets/admin/src/schema/sections/tools/modal-rollout.js b/assets/admin/src/schema/sections/tools/modal-rollout.js
new file mode 100644
index 00000000..591705ea
--- /dev/null
+++ b/assets/admin/src/schema/sections/tools/modal-rollout.js
@@ -0,0 +1,45 @@
+export const modalRolloutSchema = {
+  key: 'tools.modal-rollout',
+  title: '前台弹窗灰度',
+  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_badges: false,
+    frontend_modal_rollout_orders: false,
+    frontend_modal_rollout_vip: false,
+  },
+  groups: [
+    {
+      key: 'modal-rollout',
+      title: '弹窗新流程开关',
+      icon: 'fas fa-toggle-on',
+      fields: [
+        {
+          key: 'frontend_modal_rollout_identity',
+          label: '官方认证新流程',
+          type: 'switch',
+          help: '启用统一弹窗运行时与认证快照流程。',
+        },
+        {
+          key: 'frontend_modal_rollout_badges',
+          label: '徽章新流程',
+          type: 'switch',
+          help: '启用统一 JSON 徽章流程和短缓存。',
+        },
+        {
+          key: 'frontend_modal_rollout_orders',
+          label: '订单新流程',
+          type: 'switch',
+          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',
+          help: '启用统一会员购买、支付和结果同步流程。',
+        },
+      ],
+    },
+  ],
+}
diff --git a/assets/js/core/modal-telemetry.js b/assets/js/core/modal-telemetry.js
new file mode 100644
index 00000000..43a713a9
--- /dev/null
+++ b/assets/js/core/modal-telemetry.js
@@ -0,0 +1,112 @@
+/**
+ * Frontend modal performance marks.
+ *
+ * Records only bounded domain/event names and timing data. Never include
+ * payment credentials, order contents, identity evidence, or user payloads.
+ *
+ * @package AKSRT
+ */
+(function (window) {
+  'use strict';
+
+  var allowedKinds = {
+    identity: true,
+    badges: true,
+    orders: true,
+    vip: true,
+  };
+  var allowedEvents = {
+    click: true,
+    shell: true,
+    'first-content': true,
+    ready: true,
+    'action-start': true,
+    'action-end': true,
+    unauthorized: true,
+    error: true,
+  };
+  var sessions = Object.create(null);
+  var sequence = 0;
+  var maxSessions = 100;
+
+  function normalize(value, fallback) {
+    var normalized = String(value || fallback || '').toLowerCase().replace(/[^a-z0-9-]/g, '');
+    return normalized || fallback;
+  }
+
+  function now() {
+    return window.performance && typeof window.performance.now === 'function'
+      ? window.performance.now()
+      : 0;
+  }
+
+  function markName(session, event) {
+    return 'aksrt-modal-' + session.kind + '-' + session.id + '-' + event;
+  }
+
+  function emit(session, event) {
+    if (!window.performance || typeof window.performance.mark !== 'function') return;
+
+    var name = markName(session, event);
+    window.performance.mark(name);
+    session.marks[event] = name;
+
+    if (typeof window.performance.measure === 'function' && session.marks.click && event !== 'click') {
+      try {
+        window.performance.measure(
+          'aksrt-modal-' + session.kind + '-' + session.id + '-click-to-' + event,
+          session.marks.click,
+          name
+        );
+      } catch (error) {
+        // A missing mark must never affect the modal interaction.
+      }
+    }
+  }
+
+  function start(kind) {
+    var safeKind = normalize(kind, 'unknown');
+    if (!allowedKinds[safeKind]) safeKind = 'unknown';
+
+    sequence += 1;
+    var id = String(sequence);
+    var session = {
+      id: id,
+      kind: safeKind,
+      startedAt: now(),
+      marks: Object.create(null),
+    };
+
+    sessions[id] = session;
+    emit(session, 'click');
+
+    var ids = Object.keys(sessions);
+    while (ids.length > maxSessions) {
+      delete sessions[ids.shift()];
+    }
+
+    return id;
+  }
+
+  function mark(id, event) {
+    var session = sessions[String(id || '')];
+    var safeEvent = normalize(event, 'error');
+    if (!session || !allowedEvents[safeEvent]) return;
+    emit(session, safeEvent);
+  }
+
+  function finish(id) {
+    mark(id, 'ready');
+  }
+
+  function fail(id) {
+    mark(id, 'error');
+  }
+
+  window.AksrtModalTelemetry = {
+    start: start,
+    mark: mark,
+    finish: finish,
+    error: fail,
+  };
+})(window);
diff --git a/assets/js/order-center.js b/assets/js/order-center.js
index 0cede03f..2549413f 100644
--- a/assets/js/order-center.js
+++ b/assets/js/order-center.js
@@ -98,18 +98,28 @@
     function openDetail(orderNumber) {
         if (!detailModal || !detailBody) return;
         detailOrderNumber = orderNumber;
+        var telemetry = window.AksrtModalTelemetry;
+        var telemetryId = telemetry && typeof telemetry.start === "function" ? telemetry.start("orders") : "";
+        function telemetryMark(event) {
+            if (telemetry && telemetryId && typeof telemetry.mark === "function") telemetry.mark(telemetryId, event);
+        }
         detailBody.innerHTML = '<p class="muted-2-color">加载中…</p>';
         detailFooter.innerHTML = "";
         detailModal.hidden = false;
         document.documentElement.classList.add("aksrt-modal-open");
+        telemetryMark("shell");
         request(orderPath(orderNumber), undefined, "GET").then(function (result) {
             if (orderNumber !== detailOrderNumber) return;
             if (!result.success || !result.data) {
+                telemetryMark("error");
                 detailBody.innerHTML = '<p class="c-red">' + escapeHtml(result.message || "订单不存在") + "</p>";
                 return;
             }
+            telemetryMark("first-content");
             renderDetail(result.data);
+            telemetryMark("ready");
         }).catch(function () {
+            telemetryMark("error");
             detailBody.innerHTML = '<p class="c-red">网络错误，请稍后重试</p>';
         });
     }
diff --git a/assets/js/pay-vip.js b/assets/js/pay-vip.js
index 78f64be3..9a32b42c 100644
--- a/assets/js/pay-vip.js
+++ b/assets/js/pay-vip.js
@@ -252,21 +252,29 @@
     }
     if (loading) return;
     loading = true;
+    var telemetry = window.AksrtModalTelemetry;
+    var telemetryId = telemetry && typeof telemetry.start === "function" ? telemetry.start("vip") : "";
+    function telemetryMark(event) {
+      if (telemetry && telemetryId && typeof telemetry.mark === "function") telemetry.mark(telemetryId, event);
+    }
     var shell = ensureModalShell();
     var body = shell.querySelector("[data-aksrt-vip-modal-body]");
     if (body) body.innerHTML = '<div class="text-center padding-20 muted-2-color">加载中…</div>';
     openModal();
+    telemetryMark("shell");
 
     api("/pay/vip/modal", { query: { vip_level: level } })
       .then(function (r) {
         loading = false;
         if (r.status === 401) {
+          telemetryMark("unauthorized");
           closeModal();
           var login = document.querySelector(".signin-loader");
           if (login) login.click();
           return;
         }
         if (!r.ok || !r.json || !r.json.html) {
+          telemetryMark("error");
           if (body) {
             body.innerHTML =
               '<div class="text-center padding-20 c-red">' +
@@ -277,11 +285,14 @@
         }
         if (body) {
           body.innerHTML = r.json.html;
+          telemetryMark("first-content");
           bindModalUi(body);
+          telemetryMark("ready");
         }
       })
       .catch(function () {
         loading = false;
+        telemetryMark("error");
         if (body) {
           body.innerHTML = '<div class="text-center padding-20 c-red">网络错误</div>';
         }
diff --git a/assets/js/routes/user-center-auth.js b/assets/js/routes/user-center-auth.js
index 2901b1ea..2aa655ed 100644
--- a/assets/js/routes/user-center-auth.js
+++ b/assets/js/routes/user-center-auth.js
@@ -63,8 +63,20 @@
     var currentUuid = config.currentUuid || '';
     var pollTimer = null;
     var shouldPoll = false;
+    var telemetry = window.AksrtModalTelemetry;
+    var telemetryId = '';
 
-    function open() { modal.classList.add('is-open'); modal.setAttribute('aria-hidden', 'false'); document.body.style.overflow = 'hidden'; }
+    function telemetryMark(event) {
+      if (telemetry && telemetryId && typeof telemetry.mark === 'function') telemetry.mark(telemetryId, event);
+    }
+
+    function open() {
+      telemetryId = telemetry && typeof telemetry.start === 'function' ? telemetry.start('identity') : '';
+      modal.classList.add('is-open');
+      modal.setAttribute('aria-hidden', 'false');
+      document.body.style.overflow = 'hidden';
+      telemetryMark('shell');
+    }
     function close() { modal.classList.remove('is-open'); modal.setAttribute('aria-hidden', 'true'); document.body.style.overflow = ''; }
     root.querySelectorAll('[data-auth-modal-open]').forEach(function (button) { button.addEventListener('click', open); });
     modal.querySelectorAll('[data-auth-modal-close]').forEach(function (button) { button.addEventListener('click', close); });
@@ -80,6 +92,7 @@
 
     function render(data) {
       if (!data) return;
+      telemetryMark('first-content');
       currentUuid = data.uuid || currentUuid;
       if (statusBox) statusBox.hidden = false;
       if (createForm) createForm.hidden = true;
@@ -102,6 +115,7 @@
       } else {
         stopPolling();
       }
+      telemetryMark('ready');
     }
 
     function refresh() {
diff --git a/assets/js/user-badges.js b/assets/js/user-badges.js
index 193b9e8d..7feac6fd 100644
--- a/assets/js/user-badges.js
+++ b/assets/js/user-badges.js
@@ -93,6 +93,12 @@
     var wearSlot = modal.querySelector('[data-aksrt-badges-wear-slot]');
 
     var state = { data: null, detailSlug: '' };
+    var telemetry = window.AksrtModalTelemetry;
+    var telemetryId = '';
+
+    function telemetryMark(event) {
+      if (telemetry && telemetryId && typeof telemetry.mark === 'function') telemetry.mark(telemetryId, event);
+    }
 
     function findItem(slug) {
       var cats = (state.data && state.data.categories) || [];
@@ -230,6 +236,7 @@
       }
       return api('/users/' + userId + '/badges').then(function (r) {
         if (!r.ok || !r.json || !r.json.data) {
+          telemetryMark('error');
           if (body) {
             body.innerHTML = '<div class="uc-badges-error">' +
               '<span class="c-red em09">' + escapeHtml('加载失败') + '</span>' +
@@ -239,8 +246,10 @@
           return;
         }
         state.data = r.json.data;
+        telemetryMark('first-content');
         renderHead();
         renderGrid();
+        telemetryMark('ready');
       });
     }
 
@@ -271,7 +280,9 @@
     openers.forEach(function (btn) {
       btn.addEventListener('click', function (e) {
         e.preventDefault();
+        telemetryId = telemetry && typeof telemetry.start === 'function' ? telemetry.start('badges') : '';
         openModal();
+        telemetryMark('shell');
         showView('grid');
         load();
       });
diff --git a/src/Admin/Schema/SchemaTools.php b/src/Admin/Schema/SchemaTools.php
index 0384e554..3828e2c9 100644
--- a/src/Admin/Schema/SchemaTools.php
+++ b/src/Admin/Schema/SchemaTools.php
@@ -18,6 +18,7 @@ class SchemaTools {
                 'health'         => SchemaToolsHealth::build(),
                 'backup'         => SchemaToolsBackup::build(),
                 'email-rollback' => SchemaToolsEmailRollback::build(),
+                'modal-rollout'  => SchemaToolsModalRollout::build(),
             ],
         ];
     }
diff --git a/src/Admin/Schema/SchemaToolsModalRollout.php b/src/Admin/Schema/SchemaToolsModalRollout.php
new file mode 100644
index 00000000..4f6574fa
--- /dev/null
+++ b/src/Admin/Schema/SchemaToolsModalRollout.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * @package AKSRT
+ */
+
+namespace AKSRT\Admin\Schema;
+
+defined('ABSPATH') || exit;
+
+class SchemaToolsModalRollout {
+
+    public static function build(): array {
+        return [
+            'key'        => 'modal-rollout',
+            'title'      => '前台弹窗灰度',
+            'version'    => '1.0.0',
+            'option_key' => 'aksrt_settings',
+            'groups'     => [
+                [
+                    'key'    => 'modal-rollout',
+                    'title'  => '弹窗新流程开关',
+                    'fields' => [
+                        [
+                            'key'     => 'frontend_modal_rollout_identity',
+                            'label'   => '官方认证新流程',
+                            'type'    => 'switch',
+                            'default' => false,
+                            'help'    => '启用统一弹窗运行时与认证快照流程。',
+                        ],
+                        [
+                            'key'     => 'frontend_modal_rollout_badges',
+                            'label'   => '徽章新流程',
+                            'type'    => 'switch',
+                            'default' => false,
+                            'help'    => '启用统一 JSON 徽章流程和短缓存。',
+                        ],
+                        [
+                            'key'     => 'frontend_modal_rollout_orders',
+                            'label'   => '订单新流程',
+                            'type'    => 'switch',
+                            'default' => false,
+                            '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,
+                            'help'    => '启用统一会员购买、支付和结果同步流程。',
+                        ],
+                    ],
+                ],
+            ],
+        ];
+    }
+}
diff --git a/src/Admin/ToolsController.php b/src/Admin/ToolsController.php
index 829e8e72..17c6456c 100644
--- a/src/Admin/ToolsController.php
+++ b/src/Admin/ToolsController.php
@@ -17,6 +17,8 @@ class ToolsController extends ControllerBase {
     }
 
     public function register_routes(): void {
+        $this->register_section_routes('tools', 'tools');
+
         // Health: email verification status
         register_rest_route(self::API_NAMESPACE, '/health/email-verification', [
             'methods'             => 'GET',
diff --git a/src/Core/ScriptsPart1c.php b/src/Core/ScriptsPart1c.php
index cef91583..b7378b3f 100644
--- a/src/Core/ScriptsPart1c.php
+++ b/src/Core/ScriptsPart1c.php
@@ -127,6 +127,7 @@ trait ScriptsPart1c {
             'aksrt-core-comment-move'  => 'comment-move-form.js',
             // Shared zibll-parity list/modal engines (before pagination consumers).
             'aksrt-core-ajax-list'     => 'ajax-list.js',
+            'aksrt-core-modal-telemetry' => 'modal-telemetry.js',
             'aksrt-core-remote-modal'  => 'remote-modal.js',
             'aksrt-core-pagination'    => 'pagination.js',
             'aksrt-core-archive'       => 'archive.js',
@@ -560,6 +561,12 @@ trait ScriptsPart1c {
             'restUrl'               => esc_url_raw(rest_url('aksrt/v1')),
             // Alias used by modal-auth / follow / report (same value as restUrl).
             'apiUrl'                => esc_url_raw(rest_url('aksrt/v1')),
+            'modalRollout'          => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_frontend_modal_rollout_settings() : [
+                'identity' => false,
+                'badges'   => false,
+                'orders'   => false,
+                'vip'      => false,
+            ],
             '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'],
             'badgeShow'             => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_post_list_style_settings()['badge_show'] : true,
diff --git a/src/Settings/DomainGroups.php b/src/Settings/DomainGroups.php
index 7f8a2a16..c93b47f2 100644
--- a/src/Settings/DomainGroups.php
+++ b/src/Settings/DomainGroups.php
@@ -178,4 +178,13 @@ trait DomainGroups {
     public static function get_system_tools_settings(): array {
         return Capabilities::get_system_tools_settings();
     }
+
+    /**
+     * 获取前台弹窗按领域灰度开关。
+     *
+     * @return array{identity:bool,badges:bool,orders:bool,vip:bool}
+     */
+    public static function get_frontend_modal_rollout_settings(): array {
+        return ModalRuntime::get_frontend_modal_rollout_settings();
+    }
 }
diff --git a/src/Settings/ModalRuntime.php b/src/Settings/ModalRuntime.php
new file mode 100644
index 00000000..f7ff9e6b
--- /dev/null
+++ b/src/Settings/ModalRuntime.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * Frontend modal runtime settings.
+ *
+ * @package AKSRT
+ */
+
+namespace AKSRT\Settings;
+
+defined('ABSPATH') || exit;
+
+class ModalRuntime {
+
+    /**
+     * Read the per-domain frontend modal rollout switches.
+     *
+     * @return array{identity:bool,badges:bool,orders:bool,vip:bool}
+     */
+    public static function get_frontend_modal_rollout_settings(): array {
+        $settings = Settings::get_all();
+
+        return [
+            'identity' => !empty($settings['frontend_modal_rollout_identity']),
+            'badges'   => !empty($settings['frontend_modal_rollout_badges']),
+            'orders'   => !empty($settings['frontend_modal_rollout_orders']),
+            'vip'      => !empty($settings['frontend_modal_rollout_vip']),
+        ];
+    }
+}