diff --git a/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.jsx b/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.jsx
index 3361c7a..27f770c 100644
--- a/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.jsx
+++ b/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.jsx
@@ -79,6 +79,7 @@ export default function AiPlagiarismCheck() {
   const processedRef = useRef(new Set());
   const warnedRef = useRef(new Set());
   const nameMapRef = useRef({}); 
+  const scrollSyncRef = useRef(false);
 
   /* ---- 派生 ---- */
   const visibleIndices = useMemo(
@@ -308,6 +309,82 @@ export default function AiPlagiarismCheck() {
     setEditContent(block.htmlContent || block.plainText);
   }, [taskFiles, fileBlocksCache, taskId]);
 
+  // 点击一侧匹配段落时，跳转到另一侧对应段落并高亮
+  const jumpToCounterpart = useCallback((docIdx, idx) => {
+    const related = matches.filter(
+      (m) =>
+        (m.leftIdx === docIdx && m.leftPara === idx) ||
+        (m.rightIdx === docIdx && m.rightPara === idx),
+    );
+    if (!related.length) return;
+    const match = related[0];
+    setCurrentFocusId(match.id);
+    const targetDocIdx = match.leftIdx === docIdx ? match.rightIdx : match.leftIdx;
+    const targetPara = match.leftIdx === docIdx ? match.rightPara : match.leftPara;
+    const targetId = "doc-container-" + targetDocIdx + "-" + targetPara;
+
+    // 被隐藏的文件没有 DOM，先恢复面板，再在目标 pane 内滚动，避免 scrollIntoView 滚动外层横向容器。
+    if (hiddenFiles.has(targetDocIdx)) {
+      setHiddenFiles((prev) => {
+        const next = new Set(prev);
+        next.delete(targetDocIdx);
+        return next;
+      });
+    }
+
+    requestAnimationFrame(() => {
+      const targetEl = document.getElementById(targetId);
+      const targetPane = targetEl?.closest("." + styles.pane);
+      if (!targetEl || !targetPane) return;
+
+      const paneRect = targetPane.getBoundingClientRect();
+      const targetRect = targetEl.getBoundingClientRect();
+      const targetTop = targetPane.scrollTop + targetRect.top - paneRect.top;
+      const centeredTop = targetTop - (targetPane.clientHeight - targetEl.offsetHeight) / 2;
+      targetPane.scrollTo({ top: Math.max(0, centeredTop), behavior: "smooth" });
+    });
+  }, [matches, hiddenFiles, styles.pane]);
+
+  // 按中缝匹配关系同步双屏滚动，不按两个文档总高度做比例同步。
+  const syncCounterpartScroll = useCallback((docIdx, sourcePane) => {
+    if (scrollSyncRef.current || !sourcePane || !matches.length) return;
+
+    const sourcePaneRect = sourcePane.getBoundingClientRect();
+    const candidates = matches
+      .filter((match) => match.leftIdx === docIdx || match.rightIdx === docIdx)
+      .map((match) => {
+        const sourcePara = match.leftIdx === docIdx ? match.leftPara : match.rightPara;
+        const targetDocIdx = match.leftIdx === docIdx ? match.rightIdx : match.leftIdx;
+        const targetPara = match.leftIdx === docIdx ? match.rightPara : match.leftPara;
+        const sourceEl = document.getElementById("doc-container-" + docIdx + "-" + sourcePara);
+        const targetEl = document.getElementById("doc-container-" + targetDocIdx + "-" + targetPara);
+        if (!sourceEl || !targetEl) return null;
+        return {
+          sourceEl,
+          targetEl,
+          distance: Math.abs(sourceEl.getBoundingClientRect().top - sourcePaneRect.top),
+        };
+      })
+      .filter(Boolean)
+      .sort((a, b) => a.distance - b.distance);
+
+    const current = candidates[0];
+    const targetPane = current?.targetEl.closest("." + styles.pane);
+    if (!current || !targetPane) return;
+
+    const sourceTop = current.sourceEl.getBoundingClientRect().top - sourcePaneRect.top;
+    const targetPaneRect = targetPane.getBoundingClientRect();
+    const targetTop = targetPane.scrollTop + current.targetEl.getBoundingClientRect().top - targetPaneRect.top;
+    const nextTop = Math.max(0, targetTop - sourceTop);
+    if (Math.abs(targetPane.scrollTop - nextTop) < 2) return;
+
+    scrollSyncRef.current = true;
+    targetPane.scrollTop = nextTop;
+    requestAnimationFrame(() => {
+      scrollSyncRef.current = false;
+    });
+  }, [matches, styles.pane]);
+
   const applyAiRewrite = useCallback(async () => {
     if (!editingBlock || !editingBlock.taskId || !editingBlock.fileId || !editingBlock.blockId) {
       message.warning("无法降重：缺少必要信息"); return;
@@ -590,7 +667,12 @@ export default function AiPlagiarismCheck() {
       const activeClass = isFocused ? " " + styles.active : "";
       // CSS覆盖高亮，保留样式；纯文本用 <mark> 精确标记
       if (/<[^>]+>/.test(html)) {
-        return (<div key={idx} id={blockId}><p className={styles.docP + " " + clr + activeClass} onClick={() => openEditor(docIdx, idx)} dangerouslySetInnerHTML={{ __html: html }} /></div>);
+        return (
+          <div key={idx} id={blockId} className={styles.matchParaWrap}>
+            <p className={styles.docP + " " + clr + activeClass} onClick={() => jumpToCounterpart(docIdx, idx)} dangerouslySetInnerHTML={{ __html: html }} />
+            <Button size="small" type="text" icon={<EditOutlined />} className={styles.matchEditBtn} title="编辑该段" onClick={() => openEditor(docIdx, idx)} />
+          </div>
+        );
       }
       // 纯文本精确高亮
       const spans = [];
@@ -614,7 +696,12 @@ export default function AiPlagiarismCheck() {
           cursor = s.end;
         });
         if (cursor < plain.length) parts.push(plain.slice(cursor));
-        return (<div key={idx} id={blockId}><p className={styles.docP} onClick={() => openEditor(docIdx, idx)}>{parts}</p></div>);
+        return (
+          <div key={idx} id={blockId} className={styles.matchParaWrap}>
+            <p className={styles.docP} onClick={() => jumpToCounterpart(docIdx, idx)}>{parts}</p>
+            <Button size="small" type="text" icon={<EditOutlined />} className={styles.matchEditBtn} title="编辑该段" onClick={() => openEditor(docIdx, idx)} />
+          </div>
+        );
       }
     }
 
@@ -669,7 +756,10 @@ export default function AiPlagiarismCheck() {
           const blocks = fileBlocksCache[file?.id] || [];
           return (
             <div key={docIdx} className={styles.panelGroup}>
-              <div className={styles.pane} onScroll={redrawAll}>
+              <div className={styles.pane} onScroll={(event) => {
+                syncCounterpartScroll(docIdx, event.currentTarget);
+                redrawAll();
+              }}>
                 <div className={styles.paneHeader}>
                   <Typography.Text strong>{(nameMapRef.current[file?.originalName] || fixGarbledName(file?.originalName) || "文档" + (docIdx + 1))}</Typography.Text>
                   <Button size="small" danger icon={<CloseOutlined />} onClick={() => hidePanel(docIdx)}>隐藏</Button>
diff --git a/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.module.less b/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.module.less
index 2b1a4b4..2627363 100644
--- a/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.module.less
+++ b/web/client/src/sections/aiTenderDocument/container/aiPlagiarismCheck.module.less
@@ -480,6 +480,26 @@
   }
 }
 
+/* 匹配段落外层：承载点击跳转 + 悬浮编辑按钮 */
+.matchParaWrap {
+  position: relative;
+}
+
+.matchEditBtn {
+  position: absolute;
+  top: 4px;
+  right: 6px;
+  opacity: 0.4;
+  background: #fff;
+  border-radius: 4px;
+  z-index: 2;
+  transition: opacity 0.15s ease;
+}
+
+.matchParaWrap:hover .matchEditBtn {
+  opacity: 1;
+}
+
 /* 中缝（面板间连线区域） */
 .gutter {
   width: 48px;
diff --git a/web/client/src/sections/superAgent/components/AgentSquare.jsx b/web/client/src/sections/superAgent/components/AgentSquare.jsx
index 95e8b22..6d00028 100644
--- a/web/client/src/sections/superAgent/components/AgentSquare.jsx
+++ b/web/client/src/sections/superAgent/components/AgentSquare.jsx
@@ -158,9 +158,10 @@ const AGENT_CATEGORY_FILTERS = [
    { key: "我的收藏", label: "我的收藏" },
 ];
 
-// superAgent 发现智能体仅保留当前已接入的两个业务入口。
+// superAgent 发现智能体仅保留当前已接入的业务入口
 const SUPER_AGENT_VISIBLE_CARD_KEYS = new Set([
    "stable-finance-invoice",
+   "stable-plagiarism-check",
    "beta-message",
 ]);
 
@@ -280,6 +281,26 @@ const buildSections = (token, userIdParam) => [
             icon: duibiIcon,
             component: "financeInvoice",
          },
+         {
+            key: "stable-plagiarism-check",
+            title: "AI查重",
+            description:
+               "上传文稿自动检测重复内容，按连续相同字数阈值定位重复段落，支持差异比对与在线修改。",
+            updatedAt: "2026-08-17",
+            badgeA: "正式",
+            badgeB: "分析类",
+            category: "专业应用",
+            cornerBadge: "new",
+            icon: duibiIcon,
+            component: "aiTenderDocument",
+            initialActiveMenu: "check",
+            url: buildAppPath("/aiTenderDocument", {
+               activeMenu: "check",
+               hideMenu: "1",
+               token,
+               userid: userIdParam,
+            }),
+         },
       ],
    },
    {