diff --git a/scripts/llm.js b/scripts/llm.js
index a4cc9d0..bb2e33b 100644
--- a/scripts/llm.js
+++ b/scripts/llm.js
@@ -60,21 +60,25 @@ async function renderSources(sourceList, sources, jumpMap) {
     ul.style.listStyle = "disc";
     ul.style.fontSize = "14px";
 
+    // ====== 新增去重处理 ======
+    const seen = new Set();
     for (const src of sources) {
         const url = jumpMap[src.title];
+        const title = src.title || "未命名文档";
+        const scoreText = (typeof src.score === "number") ? `（相似度：${(src.score * 100).toFixed(2)}%）` : "";
+
+        const key = title + "|" + (url || "");
+        if (seen.has(key)) continue;  // 跳过重复
+        seen.add(key);
+
         const li = document.createElement("li");
         li.style.marginBottom = "3px";
         li.style.lineHeight = "1.7";
 
-        let scoreText = "";
-        if (typeof src.score === "number") {
-            scoreText = `（相似度：${(src.score * 100).toFixed(2)}%）`;
-        }
-
         if (url) {
             const link = document.createElement("a");
             link.href = url;
-            link.textContent = src.title || "未命名文档";
+            link.textContent = title;
             link.target = "_blank";
             link.style.color = "#2560de";
             link.style.textDecoration = "none";
@@ -91,15 +95,18 @@ async function renderSources(sourceList, sources, jumpMap) {
                 li.appendChild(scoreSpan);
             }
         } else {
-            li.textContent = (src.title || "未命名文档") + (scoreText ? " " + scoreText : "");
+            li.textContent = title + (scoreText ? " " + scoreText : "");
             li.style.color = "#666";
         }
 
         ul.appendChild(li);
     }
+    // ====== 去重处理结束 ======
+
     sourceList.appendChild(ul);
 }
 
+
 // === 复制代码块功能 ===
 function wrapHtmlWithCopyBtn(html) {
     const wrapper = document.createElement('div');
@@ -184,6 +191,7 @@ function insertCopyFullAnswerBtn(msgBox, answerStr) {
         let refArr = [];
         const ul = msgBox.querySelector('.llm-sources ul');
         if (ul) {
+            const seen = new Set();
             ul.querySelectorAll('li').forEach(li => {
                 let link = li.querySelector('a');
                 let title = link ? link.textContent : li.textContent;
@@ -191,7 +199,12 @@ function insertCopyFullAnswerBtn(msgBox, answerStr) {
                 // 分值（span）
                 let scoreSpan = li.querySelector('span');
                 let scoreText = scoreSpan ? scoreSpan.textContent : "";
-                refArr.push(`- [${title}](${url})${scoreText}`);
+                // 标识唯一性用 title+url
+                let key = title + '|' + url;
+                if (!seen.has(key)) {
+                    refArr.push(`- [${title}](${url})${scoreText}`);
+                    seen.add(key);
+                }
             });
         }
         let refText = "";