diff --git a/web/src/App.tsx b/web/src/App.tsx
index 262899d1..6dff7349 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -49,6 +49,15 @@ import {
 import { mapApiMembersToProjectMembers } from './lib/projectMemberAdapter';
 import { mergeWorkflowDocumentsFromServer } from './lib/deliverableSync';
 import { resolveCurrentDocRole } from './lib/currentDocRole';
+import { holdsDocDuty } from './lib/docGovActionVisibility';
+import {
+  claimDocument,
+  submitForReview,
+  reviewDecision,
+  approverDecision,
+  mapLeaseToAstEditLease,
+  type DocGovRecord,
+} from './api/docgov';
 import { canAddBlockComment } from './lib/commentPolicy';
 import {
   pollUntilPostTaskServerDoc,
@@ -2934,8 +2943,18 @@ export default function App() {
       currentDocRole === 'author';
     const isReviewPassShortcut =
       (text.includes('通过') || text.includes('同意')) &&
-      ((docAST.lifecycleState === 'reviewing' && currentDocRole === 'reviewer') ||
-        (docAST.lifecycleState === 'approving' && currentDocRole === 'approver'));
+      ((docAST.lifecycleState === 'reviewing' &&
+        holdsDocDuty(currentUser.id, 'reviewer', {
+          authorId: docAST.authorId,
+          reviewerId: docAST.reviewerId,
+          approverId: docAST.approverId,
+        })) ||
+        (docAST.lifecycleState === 'approving' &&
+          holdsDocDuty(currentUser.id, 'approver', {
+            authorId: docAST.authorId,
+            reviewerId: docAST.reviewerId,
+            approverId: docAST.approverId,
+          })));
     const sendActiveDoc =
       deliverables.find((d) => d.docId === activeDocId) ||
       visibleDeliverables.find((d) => d.docId === activeDocId);
@@ -3192,8 +3211,13 @@ export default function App() {
       }
 
       if (text.includes('通过') || text.includes('同意')) {
-        if (docAST.lifecycleState === 'reviewing' && currentDocRole === 'reviewer') {
-          handlePassReview();
+        const duties = {
+          authorId: docAST.authorId,
+          reviewerId: docAST.reviewerId,
+          approverId: docAST.approverId,
+        };
+        if (docAST.lifecycleState === 'reviewing' && holdsDocDuty(currentUser.id, 'reviewer', duties)) {
+          void handlePassReview();
           setMessages((prev) => [
             ...prev,
             {
@@ -3208,8 +3232,8 @@ export default function App() {
           ]);
           return;
         }
-        if (docAST.lifecycleState === 'approving' && currentDocRole === 'approver') {
-          handleApprove();
+        if (docAST.lifecycleState === 'approving' && holdsDocDuty(currentUser.id, 'approver', duties)) {
+          void handleApprove();
           return;
         }
       }
@@ -3328,80 +3352,189 @@ export default function App() {
     setDocAST({ ...docAST });
   };
 
-  // 法定生命周期流转
-  const handleClaim = () => {
-    docAST.isClaimed = true;
-    setDocAST({ ...docAST });
+  // 法定生命周期流转（真实 docgov HTTP）
+  const applyDocGovRecord = (doc: DocGovRecord) => {
+    const nextState = (doc.current_state || docAST.lifecycleState) as DocLifecycleState;
+    const nextClaimed = doc.author_claimed ?? docAST.isClaimed;
+    const lease = mapLeaseToAstEditLease(doc);
+    const nextAst: DocumentAST = {
+      ...docAST,
+      lifecycleState: nextState,
+      isClaimed: nextClaimed,
+      authorId: doc.author_id ?? docAST.authorId,
+      author: doc.author_name || docAST.author,
+      reviewerId: doc.reviewer_id ?? docAST.reviewerId,
+      reviewer: doc.reviewer_name || docAST.reviewer,
+      approverId: doc.approver_id ?? docAST.approverId,
+      approver: doc.approver_name || docAST.approver,
+      dutyPolicy: doc.duty_policy || docAST.dutyPolicy,
+      contentSha256: doc.content_sha256 || docAST.contentSha256,
+      editLease: lease ?? docAST.editLease,
+    };
+    setDocAST(nextAst);
     setDeliverables((prev) =>
-      prev.map((d) => (d.docId === activeDocId ? { ...d, isClaimed: true } : d))
+      prev.map((d) =>
+        d.docId === activeDocId || d.docId === doc.doc_id
+          ? {
+              ...d,
+              lifecycleState: nextState,
+              isClaimed: nextClaimed,
+              authorId: doc.author_id ?? d.authorId,
+              author: doc.author_name || d.author,
+              reviewerId: doc.reviewer_id ?? d.reviewerId,
+              reviewer: doc.reviewer_name || d.reviewer,
+              approverId: doc.approver_id ?? d.approverId,
+              approver: doc.approver_name || d.approver,
+              dutyPolicy: doc.duty_policy || d.dutyPolicy,
+              editLease: lease ?? d.editLease,
+            }
+          : d,
+      ),
     );
   };
 
-  const handleSubmitReview = () => {
-    docAST.lifecycleState = 'reviewing';
-    setDocAST({ ...docAST });
-    setDeliverables((prev) =>
-      prev.map((d) => (d.docId === activeDocId ? { ...d, lifecycleState: 'reviewing' } : d))
-    );
-  };
-
-  const handlePassReview = () => {
-    docAST.lifecycleState = 'approving';
-    setDocAST({ ...docAST });
-    setDeliverables((prev) =>
-      prev.map((d) => (d.docId === activeDocId ? { ...d, lifecycleState: 'approving' } : d))
-    );
-  };
-
-  const handleRejectReview = (reason: string) => {
-    docAST.lifecycleState = 'drafting';
-    setDocAST({ ...docAST });
-    setDeliverables((prev) =>
-      prev.map((d) => (d.docId === activeDocId ? { ...d, lifecycleState: 'drafting' } : d))
-    );
-
+  const pushDocGovError = (actionLabel: string, err: unknown) => {
+    const message = err instanceof Error ? err.message : String(err);
     setMessages((prev) => [
       ...prev,
       {
-        id: 'rej-' + Date.now(),
+        id: 'docgov-err-' + Date.now(),
         sessionId: activeSessionId,
         role: 'system',
-        content: `⚠️ 李主管（审核负责人）驳回了《${docAST.title}》，已退回编制阶段。驳回原因：${reason}`,
+        content: `⚠️ ${actionLabel}失败：${message}`,
         timestamp: new Date().toTimeString().substring(0, 5),
       },
     ]);
   };
 
-  const handleApprove = () => {
-    docAST.lifecycleState = 'approved';
-    setDocAST({ ...docAST });
-    setDeliverables((prev) =>
-      prev.map((d) => (d.docId === activeDocId ? { ...d, lifecycleState: 'approved' } : d))
-    );
+  const handleClaim = async () => {
+    try {
+      const doc = await claimDocument({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+        user_role: 'author',
+      });
+      applyDocGovRecord(doc);
+    } catch (err) {
+      pushDocGovError('认领文档', err);
+    }
+  };
 
-    setMessages((prev) => [
-      ...prev,
-      {
-        id: 'appr-' + Date.now(),
-        sessionId: activeSessionId,
-        role: 'assistant',
-        authorName: '水木东方协同参谋',
-        intentTag: '🏆 终审批准生效',
-        content: `🎉 祝贺！王总监（批准人）已终审批准《${docAST.title}》！系统已自动对该受控交付物进行微粒度章节切片与向量化，成功注入全局标杆案例经验库！`,
-        timestamp: new Date().toTimeString().substring(0, 5),
-        recommendedCases: [
-          {
-            docId: docAST.docId,
-            taskKey: docAST.taskKey,
-            artifactTitle: docAST.title,
-            sectionTitle: '终审已生效标杆案例',
-            similarityScore: 1.0,
-            keyRegulations: ['GB 9706.1-2020', 'YY 0569-2011', 'IEC 60601-1-2'],
-            summarySnippet: '本交付物已通过编制、审核、批准法定三级签署闭环，作为往期标杆经验向全平台开放自推荐。',
-          },
-        ],
-      },
-    ]);
+  const handleSubmitReview = async () => {
+    try {
+      const doc = await submitForReview({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+      });
+      applyDocGovRecord(doc);
+    } catch (err) {
+      pushDocGovError('提交送审', err);
+    }
+  };
+
+  const handlePassReview = async () => {
+    try {
+      const doc = await reviewDecision({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+        action: 'approve',
+      });
+      applyDocGovRecord(doc);
+    } catch (err) {
+      pushDocGovError('审核通过', err);
+    }
+  };
+
+  const handleRejectReview = async (reason: string) => {
+    try {
+      const doc = await reviewDecision({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+        action: 'reject',
+        reason,
+      });
+      applyDocGovRecord(doc);
+      setMessages((prev) => [
+        ...prev,
+        {
+          id: 'rej-' + Date.now(),
+          sessionId: activeSessionId,
+          role: 'system',
+          content: `⚠️ ${currentUser.name}（审核）驳回了《${docAST.title}》，已退回编制阶段。驳回原因：${reason}`,
+          timestamp: new Date().toTimeString().substring(0, 5),
+        },
+      ]);
+    } catch (err) {
+      pushDocGovError('审核驳回', err);
+    }
+  };
+
+  const handleApprove = async () => {
+    try {
+      const doc = await approverDecision({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+        action: 'approve',
+      });
+      applyDocGovRecord(doc);
+      setMessages((prev) => [
+        ...prev,
+        {
+          id: 'appr-' + Date.now(),
+          sessionId: activeSessionId,
+          role: 'assistant',
+          authorName: '水木东方协同参谋',
+          intentTag: '🏆 终审批准生效',
+          content: `🎉 祝贺！${currentUser.name}（批准人）已终审批准《${docAST.title}》！系统已自动对该受控交付物进行微粒度章节切片与向量化，成功注入全局标杆案例经验库！`,
+          timestamp: new Date().toTimeString().substring(0, 5),
+          recommendedCases: [
+            {
+              docId: docAST.docId,
+              taskKey: docAST.taskKey,
+              artifactTitle: docAST.title,
+              sectionTitle: '终审已生效标杆案例',
+              similarityScore: 1.0,
+              keyRegulations: ['GB 9706.1-2020', 'YY 0569-2011', 'IEC 60601-1-2'],
+              summarySnippet:
+                '本交付物已通过编制、审核、批准法定三级签署闭环，作为往期标杆经验向全平台开放自推荐。',
+            },
+          ],
+        },
+      ]);
+    } catch (err) {
+      pushDocGovError('终审批准', err);
+    }
+  };
+
+  const handleRejectApprove = async (reason: string) => {
+    try {
+      const doc = await approverDecision({
+        doc_id: docAST.docId,
+        user_id: currentUser.id,
+        user_name: currentUser.name,
+        action: 'reject',
+        reason,
+        rollback_to: 'drafting',
+      });
+      applyDocGovRecord(doc);
+      setMessages((prev) => [
+        ...prev,
+        {
+          id: 'rej-appr-' + Date.now(),
+          sessionId: activeSessionId,
+          role: 'system',
+          content: `⚠️ ${currentUser.name}（批准人）驳回了《${docAST.title}》，已退回编制阶段。驳回原因：${reason}`,
+          timestamp: new Date().toTimeString().substring(0, 5),
+        },
+      ]);
+    } catch (err) {
+      pushDocGovError('批准驳回', err);
+    }
   };
 
   // 导出 DOCX (Word 渲染器)
@@ -4206,7 +4339,7 @@ export default function App() {
                 onPassReview={handlePassReview}
                 onRejectReview={handleRejectReview}
                 onApprove={handleApprove}
-                onRejectApprove={handleRejectReview}
+                onRejectApprove={handleRejectApprove}
                 onShareToProject={handleShareToProject}
                 onRevokeShare={handleRevokeShare}
               />