diff --git a/apps/renderer/src/modules/editor/css-editor.tsx b/apps/renderer/src/modules/editor/css-editor.tsx
index a12f9e484..f84432f8b 100644
--- a/apps/renderer/src/modules/editor/css-editor.tsx
+++ b/apps/renderer/src/modules/editor/css-editor.tsx
@@ -6,6 +6,7 @@ import { useLayoutEffect, useRef } from "react"
 import css from "shiki/langs/css.mjs"
 import githubDark from "shiki/themes/github-dark.mjs"
 import githubLight from "shiki/themes/github-light.mjs"
+import { useEventCallback } from "usehooks-ts"
 
 import { shiki } from "~/components/ui/code-highlighter/shiki/shared"
 
@@ -19,6 +20,7 @@ export const CSSEditor: Component<{
   const ref = useRef<HTMLDivElement>(null)
 
   const isDark = useIsDark()
+  const updateFnRef = useRef<() => void>()
   useLayoutEffect(() => {
     let dispose: () => void
     if (ref.current) {
@@ -32,7 +34,7 @@ export const CSSEditor: Component<{
       selection?.addRange(range)
 
       ref.current.textContent = defaultValue ?? ""
-      const { dispose: disposeShiki } = createPlainShiki(shiki).mount(ref.current, {
+      const { dispose: disposeShiki, update } = createPlainShiki(shiki).mount(ref.current, {
         lang: "css",
         themes: {
           light: "github-light",
@@ -40,6 +42,7 @@ export const CSSEditor: Component<{
         },
         defaultTheme: isDark ? "dark" : "light",
       })
+      updateFnRef.current = update
       dispose = disposeShiki
     }
     return () => dispose?.()
@@ -67,6 +70,50 @@ export const CSSEditor: Component<{
       })
     },
   })
+  const handleCopy = useEventCallback((e: React.ClipboardEvent<HTMLDivElement>) => {
+    e.preventDefault()
+    e.clipboardData.setData("text/plain", ref.current?.textContent ?? "")
+  })
+  const handlePaste = useEventCallback((e: React.ClipboardEvent<HTMLDivElement>) => {
+    e.preventDefault()
+    const text = e.clipboardData.getData("text/plain")
+
+    const selection = window.getSelection()
+    if (selection && selection.rangeCount > 0) {
+      const range = selection.getRangeAt(0)
+      // Delete the current selection
+      range.deleteContents()
+      // Insert the text at the current cursor position
+      range.insertNode(document.createTextNode(text))
+
+      range.setStartAfter(range.endContainer)
+      range.setEndAfter(range.endContainer)
+      selection.removeAllRanges()
+      selection.addRange(range)
+    }
+    updateFnRef.current?.()
+    onChange(ref.current?.textContent ?? "")
+    // Focus the editor and set cursor to the end
+    if (ref.current) {
+      ref.current.focus()
+      const selection = window.getSelection()
+      const range = document.createRange()
+      range.selectNodeContents(ref.current)
+      range.collapse(false) // collapse to end
+      selection?.removeAllRanges()
+      selection?.addRange(range)
+
+      // Get selection position
+      const rect = range.getBoundingClientRect()
+      const containerRect = ref.current.getBoundingClientRect()
+      const relativeBottom = rect.bottom - containerRect.top
+
+      // If out of view, scroll to the position
+      if (relativeBottom > ref.current.clientHeight) {
+        ref.current.scrollTop += relativeBottom - ref.current.clientHeight
+      }
+    }
+  })
   return (
     <div
       className={cn(
@@ -76,10 +123,12 @@ export const CSSEditor: Component<{
         "focus:!bg-accent/5",
         "border border-border",
         "placeholder:text-theme-placeholder-text dark:bg-zinc-700/[0.15] dark:text-zinc-200",
-        "hover:border-accent/60",
+        "overflow-auto whitespace-pre hover:border-accent/60",
         className,
       )}
       ref={ref}
+      onCopy={handleCopy}
+      onPaste={handlePaste}
       contentEditable
       tabIndex={0}
       {...props}
diff --git a/apps/renderer/src/modules/settings/tabs/apperance.tsx b/apps/renderer/src/modules/settings/tabs/apperance.tsx
index f145746d1..633936363 100644
--- a/apps/renderer/src/modules/settings/tabs/apperance.tsx
+++ b/apps/renderer/src/modules/settings/tabs/apperance.tsx
@@ -383,7 +383,9 @@ const CustomCSSModal = () => {
           variant="outline"
           onClick={(e) => {
             e.preventDefault()
+
             setUISetting("customCSS", initialCSS.current)
+
             forceUpdate()
           }}
         >
diff --git a/locales/settings/zh-CN.json b/locales/settings/zh-CN.json
index 4a9e5a239..862dd5d0c 100644
--- a/locales/settings/zh-CN.json
+++ b/locales/settings/zh-CN.json
@@ -84,7 +84,7 @@
   "appearance.theme.light": "亮色",
   "appearance.theme.system": "跟随系统",
   "appearance.thumbnail_ratio.description": "文章列表缩略图比例",
-  "appearance.thumbnail_ratio.original": "原始图像",
+  "appearance.thumbnail_ratio.original": "原始比例",
   "appearance.thumbnail_ratio.square": "正方形",
   "appearance.thumbnail_ratio.title": "缩略比例",
   "appearance.title": "外观",
@@ -155,7 +155,7 @@
   "integration.instapaper.password.label": "密码",
   "integration.instapaper.title": "Instapaper",
   "integration.instapaper.username.label": "Instapaper 用户名",
-  "integration.obsidian.enable.description": "显示保存到Obsidian按钮（如果可用）",
+  "integration.obsidian.enable.description": "显示保存到 Obsidian 按钮（如果可用）",
   "integration.obsidian.enable.label": "启用",
   "integration.obsidian.title": "Obsidian",
   "integration.obsidian.vaultPath.description": "你的 Obsidian 仓库的路径",
@@ -284,8 +284,8 @@
   "wallet.ranking.rank": "排名",
   "wallet.ranking.title": "Power 排名",
   "wallet.rewardDescription.description1": "每日奖励基于「用户等级」和「活跃度」两部分计算",
-  "wallet.rewardDescription.description2": "用户等级: 由 Power 排行榜的排名决定",
-  "wallet.rewardDescription.description3": "用户活跃度: 使用 Follow 功能可以提升活跃度，活跃度的奖励倍数范围是 1x ~ 10x",
+  "wallet.rewardDescription.description2": "用户等级：由 Power 排行榜的排名决定",
+  "wallet.rewardDescription.description3": "用户活跃度：使用 Follow 功能可以提升活跃度，活跃度的奖励倍数范围是 1x ~ 10x",
   "wallet.rewardDescription.level": "用户等级",
   "wallet.rewardDescription.percentage": "排名比例",
   "wallet.rewardDescription.reward": "奖励倍数",