diff --git a/src/components/media/MediaCard.tsx b/src/components/media/MediaCard.tsx
deleted file mode 100644
index 68acc44..0000000
--- a/src/components/media/MediaCard.tsx
+++ /dev/null
@@ -1,141 +0,0 @@
-import { useEffect, useRef, useState } from 'react'
-import { useTranslation } from 'react-i18next'
-import { X, Scissors, RotateCcw } from 'lucide-react'
-import { Button } from '@/components/ui/button'
-import { Card } from '@/components/ui/card'
-import { fmtTime } from '@/lib/ffmpeg'
-
-export type MediaItem = {
-  id: string
-  file: File
-  url: string
-  isAudio: boolean
-  duration: number | null
-  inSec: number
-  outSec: number | null
-}
-
-export function MediaCard({
-  item,
-  onUpdate,
-  onRemove,
-}: {
-  item: MediaItem
-  onUpdate: (patch: Partial<MediaItem>) => void
-  onRemove: () => void
-}) {
-  const { t } = useTranslation()
-  const ref = useRef<HTMLVideoElement | HTMLAudioElement>(null)
-  const [currentTime, setCurrentTime] = useState(0)
-
-  useEffect(() => {
-    const el = ref.current
-    if (!el) return
-    const onLoaded = () => onUpdate({ duration: el.duration || null })
-    const onTime = () => setCurrentTime(el.currentTime)
-    el.addEventListener('loadedmetadata', onLoaded)
-    el.addEventListener('timeupdate', onTime)
-    return () => {
-      el.removeEventListener('loadedmetadata', onLoaded)
-      el.removeEventListener('timeupdate', onTime)
-    }
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [item.url])
-
-  const setIn = () => {
-    const t = ref.current?.currentTime ?? 0
-    if (item.outSec != null && t >= item.outSec) return
-    onUpdate({ inSec: t })
-  }
-  const setOut = () => {
-    const t = ref.current?.currentTime ?? 0
-    if (t <= item.inSec) return
-    onUpdate({ outSec: t })
-  }
-  const reset = () =>
-    onUpdate({ inSec: 0, outSec: item.duration })
-
-  const effectiveOut = item.outSec ?? item.duration ?? 0
-  const trimmedDuration = Math.max(0, effectiveOut - item.inSec)
-
-  return (
-    <Card className="overflow-hidden p-3">
-      <div className="flex items-start justify-between gap-3">
-        <div className="min-w-0 flex-1">
-          <p className="truncate text-sm font-medium" title={item.file.name}>
-            {item.file.name}
-          </p>
-          <p className="text-xs text-muted-foreground">
-            {(item.file.size / 1024 / 1024).toFixed(2)} MB ·{' '}
-            {item.file.type || '?'}
-          </p>
-        </div>
-        <Button
-          size="icon"
-          variant="ghost"
-          className="h-7 w-7 shrink-0"
-          onClick={onRemove}
-        >
-          <X className="h-4 w-4" />
-        </Button>
-      </div>
-
-      <div className="mt-3 overflow-hidden rounded-md bg-black">
-        {item.isAudio ? (
-          <audio
-            ref={ref as React.RefObject<HTMLAudioElement>}
-            src={item.url}
-            controls
-            className="w-full"
-          />
-        ) : (
-          <video
-            ref={ref as React.RefObject<HTMLVideoElement>}
-            src={item.url}
-            controls
-            className="aspect-video w-full bg-black"
-          />
-        )}
-      </div>
-
-      <div className="mt-3 grid grid-cols-3 gap-2 text-xs">
-        <Stat label="In" value={fmtTime(item.inSec)} />
-        <Stat
-          label="Out"
-          value={
-            item.outSec != null
-              ? fmtTime(item.outSec)
-              : item.duration
-                ? fmtTime(item.duration)
-                : '—'
-          }
-        />
-        <Stat label="Length" value={fmtTime(trimmedDuration)} />
-      </div>
-
-      <div className="mt-3 flex items-center gap-2">
-        <Button size="sm" variant="secondary" onClick={setIn}>
-          <Scissors className="h-3 w-3" />
-          Set in @ {fmtTime(currentTime)}
-        </Button>
-        <Button size="sm" variant="secondary" onClick={setOut}>
-          <Scissors className="h-3 w-3" />
-          Set out @ {fmtTime(currentTime)}
-        </Button>
-        <Button size="sm" variant="ghost" onClick={reset} className="ml-auto">
-          <RotateCcw className="h-3 w-3" />
-          {t('media.cardReset')}
-        </Button>
-      </div>
-    </Card>
-  )
-}
-
-function Stat({ label, value }: { label: string; value: string }) {
-  return (
-    <div className="flex items-center justify-between rounded border border-border bg-card/50 px-2 py-1">
-      <span className="text-muted-foreground">{label}</span>
-      <span className="font-mono">{value}</span>
-    </div>
-  )
-}
diff --git a/src/i18n/zh-CN.json b/src/i18n/zh-CN.json
index 51cfd57..03303e3 100644
--- a/src/i18n/zh-CN.json
+++ b/src/i18n/zh-CN.json
@@ -918,10 +918,10 @@
     "dns": {
       "description": "基于 DoH 的 DNS 查询。默认解析器为 Cloudflare；勾选「对比解析器」会同时查 Google + Quad9。点击查询才会发起请求。",
       "typeLabel": "类型",
-      "status": "Status",
-      "answers": "{{n}} answers",
-      "noAnswers": "no answers",
-      "noDirect": "No direct answer; authority: {{authority}}",
+      "status": "状态",
+      "answers": "{{n}} 条记录",
+      "noAnswers": "无记录",
+      "noDirect": "无直接答案；授权服务器：{{authority}}",
       "empty": "填入域名 + 选择记录类型，点击 <1>查询</1>",
       "compareResolvers": "对比解析器",
       "txt": {