diff --git a/web/app/components/datasets/documents/detail/completed/child-segment-detail.tsx b/web/app/components/datasets/documents/detail/completed/child-segment-detail.tsx
index ad4ba64264..34728170d7 100644
--- a/web/app/components/datasets/documents/detail/completed/child-segment-detail.tsx
+++ b/web/app/components/datasets/documents/detail/completed/child-segment-detail.tsx
@@ -9,7 +9,7 @@ import ChunkContent from './common/chunk-content'
 import Dot from './common/dot'
 import { SegmentIndexTag } from './common/segment-index-tag'
 import { useSegmentListContext } from './index'
-import type { ChildChunkDetail } from '@/models/datasets'
+import type { ChildChunkDetail, ChuckingMode } from '@/models/datasets'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import { formatNumber } from '@/utils/format'
 import classNames from '@/utils/classnames'
@@ -21,7 +21,7 @@ type IChildSegmentDetailProps = {
   childChunkInfo?: Partial<ChildChunkDetail> & { id: string }
   onUpdate: (segmentId: string, childChunkId: string, content: string) => void
   onCancel: () => void
-  docForm: string
+  docForm: ChuckingMode
 }
 
 /**
diff --git a/web/app/components/datasets/documents/detail/completed/common/chunk-content.tsx b/web/app/components/datasets/documents/detail/completed/common/chunk-content.tsx
index ba4979f9dd..f250cb3ded 100644
--- a/web/app/components/datasets/documents/detail/completed/common/chunk-content.tsx
+++ b/web/app/components/datasets/documents/detail/completed/common/chunk-content.tsx
@@ -1,5 +1,6 @@
 import React, { type FC } from 'react'
 import { useTranslation } from 'react-i18next'
+import { ChuckingMode } from '@/models/datasets'
 import AutoHeightTextarea from '@/app/components/base/auto-height-textarea/common'
 
 type IChunkContentProps = {
@@ -8,7 +9,7 @@ type IChunkContentProps = {
   onQuestionChange: (question: string) => void
   onAnswerChange?: (answer: string) => void
   isEditMode?: boolean
-  docForm: string
+  docForm: ChuckingMode
 }
 
 const ChunkContent: FC<IChunkContentProps> = ({
@@ -21,22 +22,22 @@ const ChunkContent: FC<IChunkContentProps> = ({
 }) => {
   const { t } = useTranslation()
 
-  if (docForm === 'qa_model') {
+  if (docForm === ChuckingMode.qa) {
     return (
       <>
-        <div className='mb-1 text-xs font-medium text-gray-500'>QUESTION</div>
+        <div className='text-text-tertiary text-xs font-medium'>QUESTION</div>
         <AutoHeightTextarea
-          outerClassName='mb-4'
-          className='leading-6 text-md text-gray-800'
+          outerClassName='mb-6 mt-1'
+          className='text-text-secondary text-sm tracking-[-0.07px] caret-[#295EFF]'
           value={question}
           placeholder={t('datasetDocuments.segment.questionPlaceholder') || ''}
           onChange={e => onQuestionChange(e.target.value)}
           disabled={!isEditMode}
         />
-        <div className='mb-1 text-xs font-medium text-gray-500'>ANSWER</div>
+        <div className='text-text-tertiary text-xs font-medium'>ANSWER</div>
         <AutoHeightTextarea
-          outerClassName='mb-4'
-          className='leading-6 text-md text-gray-800'
+          outerClassName='mb-6 mt-1'
+          className='text-text-secondary text-sm tracking-[-0.07px] caret-[#295EFF]'
           value={answer}
           placeholder={t('datasetDocuments.segment.answerPlaceholder') || ''}
           onChange={e => onAnswerChange?.(e.target.value)}
diff --git a/web/app/components/datasets/documents/detail/completed/index.tsx b/web/app/components/datasets/documents/detail/completed/index.tsx
index ee92bc7247..f263366256 100644
--- a/web/app/components/datasets/documents/detail/completed/index.tsx
+++ b/web/app/components/datasets/documents/detail/completed/index.tsx
@@ -25,7 +25,7 @@ import { ToastContext } from '@/app/components/base/toast'
 import type { Item } from '@/app/components/base/select'
 import { SimpleSelect } from '@/app/components/base/select'
 import { updateSegment } from '@/service/datasets'
-import type { ChildChunkDetail, SegmentDetailModel, SegmentUpdater } from '@/models/datasets'
+import { type ChildChunkDetail, ChuckingMode, type SegmentDetailModel, type SegmentUpdater } from '@/models/datasets'
 import NewSegment from '@/app/components/datasets/documents/detail/new-segment'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import Checkbox from '@/app/components/base/checkbox'
@@ -252,7 +252,7 @@ const Completed: FC<ICompletedProps> = ({
     needRegenerate = false,
   ) => {
     const params: SegmentUpdater = { content: '' }
-    if (docForm === 'qa_model') {
+    if (docForm === ChuckingMode.qa) {
       if (!question.trim())
         return notify({ type: 'error', message: t('datasetDocuments.segment.questionEmpty') })
       if (!answer.trim())
diff --git a/web/app/components/datasets/documents/detail/completed/new-child-segment.tsx b/web/app/components/datasets/documents/detail/completed/new-child-segment.tsx
index 0028315898..d9d23b421a 100644
--- a/web/app/components/datasets/documents/detail/completed/new-child-segment.tsx
+++ b/web/app/components/datasets/documents/detail/completed/new-child-segment.tsx
@@ -14,7 +14,7 @@ import Dot from './common/dot'
 import { useSegmentListContext } from './index'
 import { useStore as useAppStore } from '@/app/components/app/store'
 import { ToastContext } from '@/app/components/base/toast'
-import type { ChildChunkDetail, SegmentUpdater } from '@/models/datasets'
+import { type ChildChunkDetail, ChuckingMode, type SegmentUpdater } from '@/models/datasets'
 import classNames from '@/utils/classnames'
 import { formatNumber } from '@/utils/format'
 import Divider from '@/app/components/base/divider'
@@ -144,7 +144,7 @@ const NewChildSegmentModal: FC<NewChildSegmentModalProps> = ({
       <div className={classNames('flex grow overflow-hidden', fullScreen ? 'w-full flex-row justify-center px-6 pt-6 gap-x-8' : 'flex-col gap-y-1 py-3 px-4')}>
         <div className={classNames('break-all overflow-y-auto whitespace-pre-line', fullScreen ? 'w-1/2' : 'grow')}>
           <ChunkContent
-            docForm=''
+            docForm={ChuckingMode.parentChild}
             question={content}
             onQuestionChange={content => setContent(content)}
             isEditMode={true}
diff --git a/web/app/components/datasets/documents/detail/completed/segment-card.tsx b/web/app/components/datasets/documents/detail/completed/segment-card.tsx
index eff9b327ec..deea30c21e 100644
--- a/web/app/components/datasets/documents/detail/completed/segment-card.tsx
+++ b/web/app/components/datasets/documents/detail/completed/segment-card.tsx
@@ -98,13 +98,22 @@ const SegmentCard: FC<ISegmentCardProps> = ({
     if (answer) {
       return (
         <>
-          <div className='flex'>
+          <div className='flex gap-x-1'>
             <div className='w-4 mr-2 text-[13px] font-medium leading-[20px] text-text-tertiary'>Q</div>
-            <div className='text-text-secondary body-md-regular'>{content}</div>
+            <div
+              className={cn('text-text-secondary body-md-regular',
+                isCollapsed ? 'line-clamp-2' : 'line-clamp-20',
+              )}>
+              {content}
+            </div>
           </div>
-          <div className='flex'>
+          <div className='flex gap-x-1'>
             <div className='w-4 mr-2 text-[13px] font-medium leading-[20px] text-text-tertiary'>A</div>
-            <div className='text-text-secondary body-md-regular'>{answer}</div>
+            <div className={cn('text-text-secondary body-md-regular',
+              isCollapsed ? 'line-clamp-2' : 'line-clamp-20',
+            )}>
+              {answer}
+            </div>
           </div>
         </>
       )
diff --git a/web/app/components/datasets/documents/detail/completed/segment-detail.tsx b/web/app/components/datasets/documents/detail/completed/segment-detail.tsx
index 30991492b4..bc679222de 100644
--- a/web/app/components/datasets/documents/detail/completed/segment-detail.tsx
+++ b/web/app/components/datasets/documents/detail/completed/segment-detail.tsx
@@ -12,7 +12,7 @@ import RegenerationModal from './common/regeneration-modal'
 import { SegmentIndexTag } from './common/segment-index-tag'
 import Dot from './common/dot'
 import { useSegmentListContext } from './index'
-import type { SegmentDetailModel } from '@/models/datasets'
+import { ChuckingMode, type SegmentDetailModel } from '@/models/datasets'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import { formatNumber } from '@/utils/format'
 import classNames from '@/utils/classnames'
@@ -23,7 +23,7 @@ type ISegmentDetailProps = {
   onUpdate: (segmentId: string, q: string, a: string, k: string[], needRegenerate?: boolean) => void
   onCancel: () => void
   isEditMode?: boolean
-  docForm: string
+  docForm: ChuckingMode
 }
 
 /**
@@ -85,12 +85,17 @@ const SegmentDetail: FC<ISegmentDetailProps> = ({
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [isEditMode])
 
+  const isQAModel = useMemo(() => {
+    return docForm === ChuckingMode.qa
+  }, [docForm])
+
   const wordCountText = useMemo(() => {
-    const total = formatNumber(isEditMode ? question.length : segInfo!.word_count as number)
-    const count = isEditMode ? question.length : segInfo!.word_count as number
+    const contentLength = isQAModel ? (question.length + answer.length) : question.length
+    const total = formatNumber(isEditMode ? contentLength : segInfo!.word_count as number)
+    const count = isEditMode ? contentLength : segInfo!.word_count as number
     return `${total} ${t('datasetDocuments.segment.characters', { count })}`
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [isEditMode, question.length, segInfo?.word_count])
+  }, [isEditMode, question.length, answer.length, segInfo?.word_count, isQAModel])
 
   const labelPrefix = useMemo(() => {
     return isParentChildMode ? t('datasetDocuments.segment.parentChunk') : t('datasetDocuments.segment.chunk')
diff --git a/web/app/components/datasets/documents/detail/new-segment.tsx b/web/app/components/datasets/documents/detail/new-segment.tsx
index 0ceaafc93f..b2ffcf5f2b 100644
--- a/web/app/components/datasets/documents/detail/new-segment.tsx
+++ b/web/app/components/datasets/documents/detail/new-segment.tsx
@@ -15,7 +15,7 @@ import Dot from './completed/common/dot'
 import { useDocumentContext } from './index'
 import { useStore as useAppStore } from '@/app/components/app/store'
 import { ToastContext } from '@/app/components/base/toast'
-import type { SegmentUpdater } from '@/models/datasets'
+import { ChuckingMode, type SegmentUpdater } from '@/models/datasets'
 import { addSegment } from '@/service/datasets'
 import classNames from '@/utils/classnames'
 import { formatNumber } from '@/utils/format'
@@ -23,7 +23,7 @@ import Divider from '@/app/components/base/divider'
 
 type NewSegmentModalProps = {
   onCancel: () => void
-  docForm: string
+  docForm: ChuckingMode
   onSave: () => void
   viewNewlyAddedChunk: () => void
 }
@@ -59,6 +59,10 @@ const NewSegmentModal: FC<NewSegmentModalProps> = ({
     </button>
   </>
 
+  const isQAModel = useMemo(() => {
+    return docForm === ChuckingMode.qa
+  }, [docForm])
+
   const handleCancel = (actionType: 'esc' | 'add' = 'esc') => {
     if (actionType === 'esc' || !addAnother)
       onCancel()
@@ -69,18 +73,30 @@ const NewSegmentModal: FC<NewSegmentModalProps> = ({
 
   const handleSave = async () => {
     const params: SegmentUpdater = { content: '' }
-    if (docForm === 'qa_model') {
-      if (!question.trim())
-        return notify({ type: 'error', message: t('datasetDocuments.segment.questionEmpty') })
-      if (!answer.trim())
-        return notify({ type: 'error', message: t('datasetDocuments.segment.answerEmpty') })
+    if (isQAModel) {
+      if (!question.trim()) {
+        return notify({
+          type: 'error',
+          message: t('datasetDocuments.segment.questionEmpty'),
+        })
+      }
+      if (!answer.trim()) {
+        return notify({
+          type: 'error',
+          message: t('datasetDocuments.segment.answerEmpty'),
+        })
+      }
 
       params.content = question
       params.answer = answer
     }
     else {
-      if (!question.trim())
-        return notify({ type: 'error', message: t('datasetDocuments.segment.contentEmpty') })
+      if (!question.trim()) {
+        return notify({
+          type: 'error',
+          message: t('datasetDocuments.segment.contentEmpty'),
+        })
+      }
 
       params.content = question
     }
@@ -109,19 +125,17 @@ const NewSegmentModal: FC<NewSegmentModalProps> = ({
   }
 
   const wordCountText = useMemo(() => {
-    const count = question.length
+    const count = isQAModel ? (question.length + answer.length) : question.length
     return `${formatNumber(count)} ${t('datasetDocuments.segment.characters', { count })}`
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [question.length])
+  }, [question.length, answer.length, isQAModel])
 
   return (
     <div className={'flex flex-col h-full'}>
       <div className={classNames('flex items-center justify-between', fullScreen ? 'py-3 pr-4 pl-6 border border-divider-subtle' : 'pt-3 pr-3 pl-4')}>
         <div className='flex flex-col'>
           <div className='text-text-primary system-xl-semibold'>{
-            docForm === 'qa_model'
-              ? t('datasetDocuments.segment.newQaSegment')
-              : t('datasetDocuments.segment.addChunk')
+            t('datasetDocuments.segment.addChunk')
           }</div>
           <div className='flex items-center gap-x-2'>
             <SegmentIndexTag label={'New Chunk'} />