diff --git a/docs/应用开发与版本迭代规范.md b/docs/应用开发与版本迭代规范.md
index 11136a0..9e71e84 100644
--- a/docs/应用开发与版本迭代规范.md
+++ b/docs/应用开发与版本迭代规范.md
@@ -54,8 +54,8 @@ z = 补丁版本号（Patch）
 ## 3. 版本演进示意
 
 ```
-0.1.0   ← 初始版本（当前）
-0.1.1   ← 修复 Bug
+0.1.0   ← 初始版本（已发布）
+0.1.1   ← 体验打磨补丁（当前）：拖拽编码识别 · 行级右键菜单 · 尾部换行显示修正
 0.2.0   ← 新增功能
 0.2.1   ← 修复该版本 Bug
 0.3.0   ← 新增功能
diff --git a/package-lock.json b/package-lock.json
index 9c3a336..16cc372 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "DiffLens",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "DiffLens",
-      "version": "0.1.0",
+      "version": "0.1.1",
       "license": "MIT",
       "dependencies": {
         "@electron-toolkit/preload": "^3.0.1",
@@ -4762,7 +4762,7 @@
       "license": "MIT"
     },
     "node_modules/is-unicode-supported": {
-      "version": "0.1.0",
+      "version": "0.1.1",
       "resolved": "https://registry.npmmirror.com/is-unicode-supported/-/is-unicode-supported-0.1.0.tgz",
       "integrity": "sha512-knxG2q4UC3u8stRGyAVJCOdxFmv5DZiRcdlIaAQXAbSfJya+OhopNotLQrstBhququ4ZpuKbDc/8S6mgXgPFPw==",
       "dev": true,
@@ -7009,7 +7009,7 @@
       }
     },
     "node_modules/yocto-queue": {
-      "version": "0.1.0",
+      "version": "0.1.1",
       "resolved": "https://registry.npmmirror.com/yocto-queue/-/yocto-queue-0.1.0.tgz",
       "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
       "dev": true,
diff --git a/package.json b/package.json
index 2ce69ef..c8f642a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "DiffLens",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "DiffLens — 精美酷炫的文本对比桌面应用",
   "author": "thzxx",
   "license": "MIT",
diff --git a/src/main/index.ts b/src/main/index.ts
index 927d626..451f290 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -83,6 +83,11 @@ ipcMain.handle('file:open', async (_event, side: 'left' | 'right' | null) => {
   return { path: filePath, name, text, encoding }
 })
 
+/** IPC: 解码拖拽传入的原始字节（复用编码探测逻辑） */
+ipcMain.handle('file:decode-buffer', (_event, buffer: ArrayBuffer) => {
+  return decodeText(Buffer.from(buffer))
+})
+
 /** IPC: 打开系统文件管理器定位文件 */
 ipcMain.handle('file:show-in-folder', (_event, filePath: string) => {
   shell.showItemInFolder(filePath)
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 1732f76..1eda44d 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -12,6 +12,8 @@ export interface FileData {
 const api = {
   openFile: (side?: 'left' | 'right'): Promise<FileData | null> =>
     ipcRenderer.invoke('file:open', side ?? null),
+  decodeBuffer: (buffer: ArrayBuffer): Promise<{ text: string; encoding: string }> =>
+    ipcRenderer.invoke('file:decode-buffer', buffer),
   showInFolder: (filePath: string): Promise<boolean> =>
     ipcRenderer.invoke('file:show-in-folder', filePath),
   setClipboard: (text: string): Promise<boolean> =>
diff --git a/src/renderer/src/App.tsx b/src/renderer/src/App.tsx
index 85db972..5a538b8 100644
--- a/src/renderer/src/App.tsx
+++ b/src/renderer/src/App.tsx
@@ -1,9 +1,18 @@
-import { useEffect, useMemo, useState, useCallback, type ReactElement } from 'react'
+import {
+  useEffect,
+  useMemo,
+  useState,
+  useCallback,
+  type ReactElement,
+  type MouseEvent as ReactMouseEvent
+} from 'react'
 import { computeDiff } from './diff/diffEngine'
 import type { DiffResult, DiffSummary } from './diff/diffEngine'
 import DiffView from './components/DiffView'
 import Toolbar from './components/Toolbar'
+import ContextMenu, { type ContextMenuItem } from './components/ContextMenu'
 import type { PaneMeta } from './components/DiffView'
+import type { SideCell } from './diff/diffEngine'
 
 interface PaneState {
   meta: PaneMeta
@@ -70,6 +79,7 @@ export default function App(): ReactElement {
   const [options, setOptions] = useState<DiffOpts>({ trimWhitespace: false, ignoreCase: false })
   const [activeRowId, setActiveRowId] = useState<string | null>(null)
   const [navIndex, setNavIndex] = useState(0)
+  const [menu, setMenu] = useState<{ x: number; y: number; items: ContextMenuItem[] } | null>(null)
 
   const openPane = useCallback(async (side: 'left' | 'right') => {
     const data = await window.api.openFile(side)
@@ -80,8 +90,17 @@ export default function App(): ReactElement {
   }, [])
 
   const dropPane = useCallback(async (side: 'left' | 'right', file: File) => {
-    const text = await file.text().catch(() => '')
-    const pane: PaneState = { meta: { name: file.name, encoding: 'UTF-8' }, path: '', text }
+    let text = ''
+    let encoding = 'UTF-8'
+    try {
+      const buf = await file.arrayBuffer()
+      const decoded = await window.api.decodeBuffer(buf)
+      text = decoded.text
+      encoding = decoded.encoding
+    } catch {
+      text = await file.text().catch(() => '')
+    }
+    const pane: PaneState = { meta: { name: file.name, encoding }, path: '', text }
     if (side === 'left') setPaneL(pane)
     else setPaneR(pane)
   }, [])
@@ -112,6 +131,34 @@ export default function App(): ReactElement {
     [changedRows, navIndex]
   )
 
+  // 行级右键菜单
+  const onRowContext = useCallback(
+    (e: ReactMouseEvent, side: 'left' | 'right', cell: SideCell) => {
+      e.preventDefault()
+      const pane = side === 'left' ? paneL : paneR
+      const sideName = side === 'left' ? '左侧' : '右侧'
+      const items: ContextMenuItem[] = [
+        {
+          label: `复制${sideName}此行内容`,
+          action: () => void navigator.clipboard.writeText(cell.text ?? '')
+        },
+        {
+          label: '复制文件名',
+          action: () => void navigator.clipboard.writeText(pane?.meta.name ?? '')
+        },
+        {
+          label: '在文件夹中显示',
+          disabled: !pane?.path,
+          action: () => {
+            if (pane?.path) void window.api.showInFolder(pane.path)
+          }
+        }
+      ]
+      setMenu({ x: e.clientX, y: e.clientY, items })
+    },
+    [paneL, paneR]
+  )
+
   const anyPane = paneL !== null || paneR !== null
 
   const leftMeta = paneL?.meta ?? null
@@ -155,6 +202,7 @@ export default function App(): ReactElement {
             rightMeta={rightMeta}
             activeRowId={activeRowId}
             onOpen={(s) => void openPane(s)}
+            onRowContext={onRowContext}
           />
           <Toolbar
             options={options}
@@ -193,6 +241,8 @@ export default function App(): ReactElement {
           )}
         </div>
       </footer>
+
+      {menu && <ContextMenu x={menu.x} y={menu.y} items={menu.items} onClose={() => setMenu(null)} />}
     </div>
   )
 }
\ No newline at end of file
diff --git a/src/renderer/src/components/ContextMenu.tsx b/src/renderer/src/components/ContextMenu.tsx
new file mode 100644
index 0000000..5f6575a
--- /dev/null
+++ b/src/renderer/src/components/ContextMenu.tsx
@@ -0,0 +1,54 @@
+import { type ReactElement } from 'react'
+
+export interface ContextMenuItem {
+  label: string
+  disabled?: boolean
+  action: () => void
+}
+
+interface ContextMenuProps {
+  x: number
+  y: number
+  items: ContextMenuItem[]
+  onClose: () => void
+}
+
+export default function ContextMenu({
+  x,
+  y,
+  items,
+  onClose
+}: ContextMenuProps): ReactElement {
+  return (
+    <div
+      className="ctx-backdrop"
+      onMouseDown={onClose}
+      onContextMenu={(e) => {
+        e.preventDefault()
+        onClose()
+      }}
+    >
+      <div
+        className="ctx-menu"
+        style={{ left: x, top: y }}
+        onMouseDown={(e) => e.stopPropagation()}
+      >
+        {items.map((it, i) => (
+          <button
+            key={i}
+            className={'ctx-item' + (it.disabled ? ' disabled' : '')}
+            disabled={it.disabled}
+            onClick={() => {
+              if (!it.disabled) {
+                it.action()
+                onClose()
+              }
+            }}
+          >
+            {it.label}
+          </button>
+        ))}
+      </div>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/src/renderer/src/components/DiffView.tsx b/src/renderer/src/components/DiffView.tsx
index 22f7f2d..e0811a7 100644
--- a/src/renderer/src/components/DiffView.tsx
+++ b/src/renderer/src/components/DiffView.tsx
@@ -1,4 +1,11 @@
-import { useEffect, useRef, type ReactNode, type ReactElement, type RefObject } from 'react'
+import {
+  useEffect,
+  useRef,
+  type ReactNode,
+  type ReactElement,
+  type RefObject,
+  type MouseEvent as ReactMouseEvent
+} from 'react'
 import { DiffResult, DiffRow, SideCell } from '../diff/diffEngine'
 
 export interface PaneMeta {
@@ -12,6 +19,7 @@ interface DiffViewProps {
   rightMeta: PaneMeta | null
   activeRowId: string | null
   onOpen: (side: 'left' | 'right') => void
+  onRowContext: (e: ReactMouseEvent, side: 'left' | 'right', cell: SideCell) => void
 }
 
 function renderCellText(cell: SideCell): ReactNode {
@@ -33,6 +41,7 @@ function SidePanel({
   side,
   meta,
   onOpen,
+  onRowContext,
   scrollRef,
   onScroll,
   activeRowId
@@ -41,6 +50,7 @@ function SidePanel({
   side: 'left' | 'right'
   meta: PaneMeta | null
   onOpen: (side: 'left' | 'right') => void
+  onRowContext: (e: ReactMouseEvent, side: 'left' | 'right', cell: SideCell) => void
   scrollRef: RefObject<HTMLDivElement>
   onScroll: () => void
   activeRowId: string | null
@@ -69,7 +79,9 @@ function SidePanel({
             return (
               <div className={cls} data-row={row.id} key={row.id + '-' + side}>
                 <span className={'ln ' + side}>{cell.lineNo ?? ''}</span>
-                <span className="tx">{renderCellText(cell)}</span>
+                <span className="tx" onContextMenu={(e) => onRowContext(e, side, cell)}>
+                  {renderCellText(cell)}
+                </span>
               </div>
             )
           })}
@@ -84,7 +96,8 @@ export default function DiffView({
   leftMeta,
   rightMeta,
   activeRowId,
-  onOpen
+  onOpen,
+  onRowContext
 }: DiffViewProps): ReactElement {
   const leftRef = useRef<HTMLDivElement>(null)
   const rightRef = useRef<HTMLDivElement>(null)
@@ -118,6 +131,7 @@ export default function DiffView({
           side="left"
           meta={leftMeta}
           onOpen={onOpen}
+          onRowContext={onRowContext}
           scrollRef={leftRef}
           onScroll={makeScrollSync('left')}
           activeRowId={activeRowId}
@@ -127,6 +141,7 @@ export default function DiffView({
           side="right"
           meta={rightMeta}
           onOpen={onOpen}
+          onRowContext={onRowContext}
           scrollRef={rightRef}
           onScroll={makeScrollSync('right')}
           activeRowId={activeRowId}
diff --git a/src/renderer/src/diff/diffEngine.ts b/src/renderer/src/diff/diffEngine.ts
index e09964e..c35bb75 100644
--- a/src/renderer/src/diff/diffEngine.ts
+++ b/src/renderer/src/diff/diffEngine.ts
@@ -70,10 +70,12 @@ function wordSegments(leftText: string, rightText: string): { left: Seg[]; right
   return { left, right }
 }
 
-/** 按行切分；空字符串返回空数组 */
+/** 按行切分；空字符串返回空数组。结尾换行符不产生一个额外空行 */
 function splitLines(text: string): string[] {
   if (text === '') return []
-  return text.split(/\r?\n/)
+  const lines = text.split(/\r?\n/)
+  if (lines[lines.length - 1] === '') lines.pop()
+  return lines
 }
 
 /**
diff --git a/src/renderer/src/styles/global.css b/src/renderer/src/styles/global.css
index 7042bda..b126e18 100644
--- a/src/renderer/src/styles/global.css
+++ b/src/renderer/src/styles/global.css
@@ -510,6 +510,42 @@ button:disabled {
   box-shadow: 0 0 8px var(--mod-fg);
 }
 
+/* ============ 右键菜单 ============ */
+.ctx-backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 1000;
+}
+.ctx-menu {
+  position: fixed;
+  min-width: 168px;
+  padding: 5px;
+  border-radius: 10px;
+  background: rgba(16, 22, 34, 0.96);
+  border: 1px solid var(--border-strong);
+  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(124, 108, 255, 0.18);
+  backdrop-filter: blur(8px);
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  z-index: 1001;
+}
+.ctx-item {
+  text-align: left;
+  padding: 7px 10px;
+  border-radius: 6px;
+  font-size: 12.5px;
+  color: var(--text);
+  background: transparent;
+  transition: background 0.13s ease;
+}
+.ctx-item:hover:not(.disabled) {
+  background: var(--surface-hover);
+}
+.ctx-item.disabled {
+  opacity: 0.4;
+}
+
 /* ============ 状态栏 ============ */
 .status-bar {
   flex: 0 0 auto;