diff --git a/write-server/Dockerfile b/write-server/Dockerfile
index f59f1db8..2083f908 100644
--- a/write-server/Dockerfile
+++ b/write-server/Dockerfile
@@ -36,7 +36,7 @@ FROM node:20-alpine AS runner
 WORKDIR /app
 
 # Install system dependencies (gcompat for glibc Hugo binary)
-RUN apk add --no-cache git openssh-client su-exec gcompat
+RUN apk add --no-cache git openssh-client su-exec gcompat ffmpeg
 
 # Install Hugo 0.128.2 extended
 ARG HUGO_VERSION=0.128.2
diff --git a/write-server/src/lib/bot/poll.ts b/write-server/src/lib/bot/poll.ts
index 540c979c..69cb85b4 100644
--- a/write-server/src/lib/bot/poll.ts
+++ b/write-server/src/lib/bot/poll.ts
@@ -233,6 +233,7 @@ async function handleDocument(chatId: number, fileId: string, fileName?: string,
   try {
     const fs = await import("fs");
     const path = await import("path");
+    const { execSync } = await import("child_process");
     const { getSession } = await import("./sessions");
 
     const s = getSession(chatId);
@@ -254,32 +255,47 @@ async function handleDocument(chatId: number, fileId: string, fileName?: string,
     const articleDir = s.dirPath;
     if (!fs.existsSync(articleDir)) fs.mkdirSync(articleDir, { recursive: true });
 
-    const ext = fileName?.split(".").pop() || filePath.split(".").pop() || "gif";
-    const filename = Date.now() + "-" + fileId.slice(0, 8) + "." + ext;
-    fs.writeFileSync(path.join(articleDir, filename), Buffer.from(fileBuffer));
+    const ext = fileName?.split(".").pop() || filePath.split(".").pop() || "bin";
+    const baseFilename = Date.now() + "-" + fileId.slice(0, 8);
+    const filename = baseFilename + "." + ext;
+    const fullPath = path.join(articleDir, filename);
+    fs.writeFileSync(fullPath, Buffer.from(fileBuffer));
 
-    // 根据 Telegram 消息类型判断，而不是猜文件名
-    const extLower = ext.toLowerCase();
-    const isImage = ["gif", "webp", "png", "jpg", "jpeg"].includes(extLower);
-    const isVideo = ["mp4", "webm", "mov", "avi", "mkv", "flv"].includes(extLower);
     const fileCaption = caption || fileName || "file";
 
-    if (isImage) {
-      appendContent(chatId, `\n![${fileCaption}](${filename})\n`);
-    } else if (fileType === "animation") {
-      // Telegram GIF 动画 → 自动播放、循环、静音
-      appendContent(chatId, `\n{{< video src="${filename}" loop="true" muted="true" >}}\n`);
-      await sendMessage(chatId, `🎞️ GIF 已保存：${filename}`);
+    if (fileType === "animation") {
+      // Telegram GIF → ffmpeg 转成真正的 GIF
+      const gifFilename = baseFilename + ".gif";
+      const gifPath = path.join(articleDir, gifFilename);
+      try {
+        await sendMessage(chatId, "🎞️ 正在转换 GIF...");
+        execSync(`ffmpeg -y -i "${fullPath}" -vf "fps=15,scale=480:-1:flags=lanczos" -loop 0 "${gifPath}"`, { timeout: 60000 });
+        fs.unlinkSync(fullPath);
+        appendContent(chatId, `\n![${fileCaption}](${gifFilename})\n`);
+        await sendMessage(chatId, `🎞️ GIF 已转换：${gifFilename}`);
+      } catch (e) {
+        console.error("[bot:gif-convert]", e instanceof Error ? e.message : String(e));
+        appendContent(chatId, `\n{{< video src="${filename}" loop="true" muted="true" >}}\n`);
+        await sendMessage(chatId, `🎞️ GIF 转换失败，已保存为视频：${filename}`);
+      }
       return;
-    } else if (fileType === "video" || isVideo) {
-      // 普通视频 → 带控制栏
+    } else if (fileType === "video") {
       appendContent(chatId, `\n{{< video src="${filename}" caption="${fileCaption}" >}}\n`);
       await sendMessage(chatId, `🎬 视频已保存：${filename}`);
       return;
     } else {
-      appendContent(chatId, `\n[${fileCaption}](${filename})\n`);
+      const extLower = ext.toLowerCase();
+      const isImage = ["gif", "webp", "png", "jpg", "jpeg"].includes(extLower);
+      const isVideo = ["mp4", "webm", "mov", "avi", "mkv", "flv"].includes(extLower);
+      if (isImage) {
+        appendContent(chatId, `\n![${fileCaption}](${filename})\n`);
+      } else if (isVideo) {
+        appendContent(chatId, `\n{{< video src="${filename}" caption="${fileCaption}" >}}\n`);
+      } else {
+        appendContent(chatId, `\n[${fileCaption}](${filename})\n`);
+      }
+      await sendMessage(chatId, `📎 文件已保存：${filename}`);
     }
-    await sendMessage(chatId, `📎 文件已保存：${filename}`);
   } catch (e) {
     console.error("[bot:document]", e instanceof Error ? e.message : String(e));
     await sendMessage(chatId, "❌ 文件保存失败");