diff --git a/app/components/TooltipCom.vue b/app/components/TooltipCom.vue
new file mode 100644
index 0000000..daea2eb
--- /dev/null
+++ b/app/components/TooltipCom.vue
@@ -0,0 +1,61 @@
+<script setup lang="ts">
+import { useMediaQuery } from "@vueuse/core";
+import type { HTMLAttributes } from "vue";
+
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger
+} from "@/components/ui/popover";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger
+} from "@/components/ui/tooltip";
+
+const props = defineProps<{
+  side?: "top" | "right" | "bottom" | "left";
+  align?: "start" | "center" | "end";
+  open?: boolean;
+  class?: HTMLAttributes["class"];
+}>();
+
+const isMobile = useMediaQuery("(max-width: 640px)");
+</script>
+
+<template>
+  <div>
+    <!-- 移动端 Popover -->
+    <Popover v-if="isMobile">
+      <PopoverTrigger as-child>
+        <slot name="trigger" />
+      </PopoverTrigger>
+      <PopoverContent
+        :side="side"
+        :align="align"
+        class="w-fit px-0 py-2 relative top-2! rounded-lg! border-none!"
+        :class="props.class"
+      >
+        <slot />
+      </PopoverContent>
+    </Popover>
+
+    <!-- PC Tooltip -->
+    <TooltipProvider v-else :delay-duration="150">
+      <Tooltip>
+        <TooltipTrigger as-child>
+          <slot name="trigger" />
+        </TooltipTrigger>
+        <TooltipContent
+          :side="side"
+          :align="align"
+          class="w-fit px-0 py-2 relative top-2! bg-popover text-popover-foreground border rounded-lg! [&>svg]:hidden [&>span>svg]:opacity-0!"
+          :class="props.class"
+        >
+          <slot />
+        </TooltipContent>
+      </Tooltip>
+    </TooltipProvider>
+  </div>
+</template>
diff --git a/app/components/dashboard/QaRecordDetail.vue b/app/components/dashboard/QaRecordDetail.vue
index a5a1c03..a497bbd 100644
--- a/app/components/dashboard/QaRecordDetail.vue
+++ b/app/components/dashboard/QaRecordDetail.vue
@@ -10,6 +10,7 @@ import {
   DialogTitle
 } from "@/components/ui/dialog";
 import { useAnswerStore } from "@/stores/answer";
+import { getOptionLines } from "@/utils";
 
 const answerStore = useAnswerStore();
 const { selectedRecord } = storeToRefs(answerStore);
@@ -26,6 +27,15 @@ const dialogOpen = computed({
     if (!open) close();
   }
 });
+
+/** 格式化后按行拆分选项，标记每行是否为正确答案 */
+const formattedOptionLines = computed(() => {
+  if (!selectedRecord.value?.options) return null;
+  return getOptionLines(
+    selectedRecord.value.options,
+    selectedRecord.value.answer ?? ""
+  );
+});
 </script>
 
 <template>
@@ -36,26 +46,46 @@ const dialogOpen = computed({
         <DialogDescription>{{ selectedRecord?.time }}</DialogDescription>
       </DialogHeader>
 
-      <div v-if="selectedRecord" class="grid max-h-[70vh] gap-4 overflow-auto pr-1">
+      <div
+        v-if="selectedRecord"
+        class="grid max-h-[70vh] gap-4 overflow-auto pr-1"
+      >
         <div class="grid gap-2">
           <span class="text-xs font-medium text-muted-foreground">题目</span>
           <pre
             class="whitespace-pre-wrap rounded-2xl bg-muted p-3 text-sm leading-6 text-foreground"
-          >{{ selectedRecord.question }}</pre>
+            >{{ selectedRecord.question }}</pre
+          >
         </div>
 
         <div class="grid gap-2">
           <span class="text-xs font-medium text-muted-foreground">选项</span>
-          <pre
-            class="whitespace-pre-wrap rounded-2xl bg-muted p-3 text-sm leading-6 text-foreground"
-          >{{ selectedRecord.options || "-" }}</pre>
+          <div
+            class="whitespace-pre-wrap rounded-2xl bg-muted p-3 text-sm leading-6"
+          >
+            <template v-if="formattedOptionLines">
+              <div
+                v-for="(line, i) in formattedOptionLines"
+                :key="i"
+                :class="
+                  line.isCorrect
+                    ? 'text-(--color-primary) font-medium'
+                    : 'text-foreground'
+                "
+              >
+                {{ line.text }}
+              </div>
+            </template>
+            <span v-else class="text-foreground">-</span>
+          </div>
         </div>
 
         <div class="grid gap-2">
           <span class="text-xs font-medium text-muted-foreground">答案</span>
           <pre
             class="whitespace-pre-wrap rounded-2xl bg-muted p-3 text-base font-semibold leading-7 text-foreground"
-          >{{ selectedRecord.answer }}</pre>
+            >{{ selectedRecord.answer }}</pre
+          >
         </div>
       </div>
     </DialogContent>
diff --git a/app/components/dashboard/QaRecordsTable.vue b/app/components/dashboard/QaRecordsTable.vue
index ccde928..7db500a 100644
--- a/app/components/dashboard/QaRecordsTable.vue
+++ b/app/components/dashboard/QaRecordsTable.vue
@@ -5,6 +5,7 @@ import { storeToRefs } from "pinia";
 
 import TableCom from "@/components/Table/TableCom.vue";
 import type { TableColumn } from "@/components/Table/type";
+import TooltipCom from "@/components/TooltipCom.vue";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import {
@@ -21,12 +22,12 @@ import {
   SelectTrigger,
   SelectValue
 } from "@/components/ui/select";
-import type { IQaRecord } from "@/interfaces";
 import {
   DASHBOARD_PAGE_SIZE_OPTIONS,
   QUESTION_TYPE_LABELS,
   useAnswerStore
 } from "@/stores/answer";
+import { getOptionLines } from "@/utils";
 
 const answerStore = useAnswerStore();
 const {
@@ -79,11 +80,6 @@ const columns = computed<TableColumn[]>(() => [
 const getQuestionTypeLabel = (type: string) => {
   return QUESTION_TYPE_LABELS[type] || type || "自动判断";
 };
-
-/** 空选项统一展示占位，不在表格中撑开大段空白 */
-const displayOptions = (record: IQaRecord) => {
-  return record.options || "-";
-};
 </script>
 
 <template>
@@ -148,12 +144,49 @@ const displayOptions = (record: IQaRecord) => {
         </template>
 
         <template #options="{ row }">
-          <div
-            class="max-w-md truncate text-muted-foreground"
-            :title="displayOptions(row)"
-          >
-            {{ displayOptions(row) }}
-          </div>
+          <TooltipCom side="top" align="start">
+            <template #trigger>
+              <div class="max-w-md cursor-default truncate">
+                <template v-if="row.options">
+                  <template
+                    v-for="(line, i) in getOptionLines(
+                      row.options,
+                      row.answer ?? ''
+                    )"
+                    :key="i"
+                  >
+                    <span v-if="i > 0" class="text-muted-foreground"
+                      >&nbsp;</span
+                    >
+                    <span
+                      :class="
+                        line.isCorrect
+                          ? 'text-green-500 font-medium'
+                          : 'text-muted-foreground'
+                      "
+                      >{{ line.text }}</span
+                    >
+                  </template>
+                </template>
+                <span v-else class="text-muted-foreground">-</span>
+              </div>
+            </template>
+            <div
+              v-if="row.options"
+              class="max-w-sm whitespace-pre-wrap px-3 py-1 text-xs leading-5"
+            >
+              <div
+                v-for="(line, i) in getOptionLines(
+                  row.options,
+                  row.answer ?? ''
+                )"
+                :key="i"
+                :class="line.isCorrect ? 'text-green-500 font-medium' : ''"
+              >
+                {{ line.text }}
+              </div>
+            </div>
+          </TooltipCom>
         </template>
 
         <template #answer="{ value }">
diff --git a/app/components/ui/popover/Popover.vue b/app/components/ui/popover/Popover.vue
new file mode 100644
index 0000000..a3fe9ac
--- /dev/null
+++ b/app/components/ui/popover/Popover.vue
@@ -0,0 +1,19 @@
+<script setup lang="ts">
+import type { PopoverRootEmits, PopoverRootProps } from 'reka-ui'
+import { PopoverRoot, useForwardPropsEmits } from 'reka-ui'
+
+const props = defineProps<PopoverRootProps>()
+const emits = defineEmits<PopoverRootEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <PopoverRoot
+    v-slot="slotProps"
+    data-slot="popover"
+    v-bind="forwarded"
+  >
+    <slot v-bind="slotProps" />
+  </PopoverRoot>
+</template>
diff --git a/app/components/ui/popover/PopoverAnchor.vue b/app/components/ui/popover/PopoverAnchor.vue
new file mode 100644
index 0000000..e96a121
--- /dev/null
+++ b/app/components/ui/popover/PopoverAnchor.vue
@@ -0,0 +1,15 @@
+<script setup lang="ts">
+import type { PopoverAnchorProps } from 'reka-ui'
+import { PopoverAnchor } from 'reka-ui'
+
+const props = defineProps<PopoverAnchorProps>()
+</script>
+
+<template>
+  <PopoverAnchor
+    data-slot="popover-anchor"
+    v-bind="props"
+  >
+    <slot />
+  </PopoverAnchor>
+</template>
diff --git a/app/components/ui/popover/PopoverContent.vue b/app/components/ui/popover/PopoverContent.vue
new file mode 100644
index 0000000..a60d609
--- /dev/null
+++ b/app/components/ui/popover/PopoverContent.vue
@@ -0,0 +1,45 @@
+<script setup lang="ts">
+import type { PopoverContentEmits, PopoverContentProps } from 'reka-ui'
+import type { HTMLAttributes } from 'vue'
+import { reactiveOmit } from '@vueuse/core'
+import {
+  PopoverContent,
+  PopoverPortal,
+  useForwardPropsEmits,
+} from 'reka-ui'
+import { cn } from '@/lib/utils'
+
+defineOptions({
+  inheritAttrs: false,
+})
+
+const props = withDefaults(
+  defineProps<PopoverContentProps & { class?: HTMLAttributes['class'] }>(),
+  {
+    align: 'center',
+    sideOffset: 4,
+  },
+)
+const emits = defineEmits<PopoverContentEmits>()
+
+const delegatedProps = reactiveOmit(props, 'class')
+
+const forwarded = useForwardPropsEmits(delegatedProps, emits)
+</script>
+
+<template>
+  <PopoverPortal>
+    <PopoverContent
+      data-slot="popover-content"
+      v-bind="{ ...$attrs, ...forwarded }"
+      :class="
+        cn(
+          'bg-popover text-popover-foreground data-open:animate-in data-closed:animate-out data-closed:fade-out-0 data-open:fade-in-0 data-closed:zoom-out-95 data-open:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 ring-foreground/5 dark:ring-foreground/10 flex flex-col gap-4 rounded-3xl p-4 text-sm shadow-lg ring-1 duration-100 z-50 w-72 origin-(--reka-popover-content-transform-origin) outline-hidden',
+          props.class,
+        )
+      "
+    >
+      <slot />
+    </PopoverContent>
+  </PopoverPortal>
+</template>
diff --git a/app/components/ui/popover/PopoverDescription.vue b/app/components/ui/popover/PopoverDescription.vue
new file mode 100644
index 0000000..4c7968a
--- /dev/null
+++ b/app/components/ui/popover/PopoverDescription.vue
@@ -0,0 +1,17 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <p
+    data-slot="popover-description"
+    :class="cn('text-muted-foreground', props.class)"
+  >
+    <slot />
+  </p>
+</template>
diff --git a/app/components/ui/popover/PopoverHeader.vue b/app/components/ui/popover/PopoverHeader.vue
new file mode 100644
index 0000000..fe1338d
--- /dev/null
+++ b/app/components/ui/popover/PopoverHeader.vue
@@ -0,0 +1,17 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <div
+    data-slot="popover-header"
+    :class="cn('flex flex-col gap-1 text-sm', props.class)"
+  >
+    <slot />
+  </div>
+</template>
diff --git a/app/components/ui/popover/PopoverTitle.vue b/app/components/ui/popover/PopoverTitle.vue
new file mode 100644
index 0000000..e1d5235
--- /dev/null
+++ b/app/components/ui/popover/PopoverTitle.vue
@@ -0,0 +1,17 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <div
+    data-slot="popover-title"
+    :class="cn('text-base font-medium cn-font-heading', props.class)"
+  >
+    <slot />
+  </div>
+</template>
diff --git a/app/components/ui/popover/PopoverTrigger.vue b/app/components/ui/popover/PopoverTrigger.vue
new file mode 100644
index 0000000..0d41065
--- /dev/null
+++ b/app/components/ui/popover/PopoverTrigger.vue
@@ -0,0 +1,15 @@
+<script setup lang="ts">
+import type { PopoverTriggerProps } from 'reka-ui'
+import { PopoverTrigger } from 'reka-ui'
+
+const props = defineProps<PopoverTriggerProps>()
+</script>
+
+<template>
+  <PopoverTrigger
+    data-slot="popover-trigger"
+    v-bind="props"
+  >
+    <slot />
+  </PopoverTrigger>
+</template>
diff --git a/app/components/ui/popover/index.ts b/app/components/ui/popover/index.ts
new file mode 100644
index 0000000..1633776
--- /dev/null
+++ b/app/components/ui/popover/index.ts
@@ -0,0 +1,7 @@
+export { default as Popover } from './Popover.vue'
+export { default as PopoverAnchor } from './PopoverAnchor.vue'
+export { default as PopoverContent } from './PopoverContent.vue'
+export { default as PopoverDescription } from './PopoverDescription.vue'
+export { default as PopoverHeader } from './PopoverHeader.vue'
+export { default as PopoverTitle } from './PopoverTitle.vue'
+export { default as PopoverTrigger } from './PopoverTrigger.vue'
diff --git a/app/components/ui/tooltip/Tooltip.vue b/app/components/ui/tooltip/Tooltip.vue
new file mode 100644
index 0000000..a531d43
--- /dev/null
+++ b/app/components/ui/tooltip/Tooltip.vue
@@ -0,0 +1,19 @@
+<script setup lang="ts">
+import type { TooltipRootEmits, TooltipRootProps } from 'reka-ui'
+import { TooltipRoot, useForwardPropsEmits } from 'reka-ui'
+
+const props = defineProps<TooltipRootProps>()
+const emits = defineEmits<TooltipRootEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <TooltipRoot
+    v-slot="slotProps"
+    data-slot="tooltip"
+    v-bind="forwarded"
+  >
+    <slot v-bind="slotProps" />
+  </TooltipRoot>
+</template>
diff --git a/app/components/ui/tooltip/TooltipContent.vue b/app/components/ui/tooltip/TooltipContent.vue
new file mode 100644
index 0000000..f9c70a6
--- /dev/null
+++ b/app/components/ui/tooltip/TooltipContent.vue
@@ -0,0 +1,34 @@
+<script setup lang="ts">
+import type { TooltipContentEmits, TooltipContentProps } from 'reka-ui'
+import type { HTMLAttributes } from 'vue'
+import { reactiveOmit } from '@vueuse/core'
+import { TooltipArrow, TooltipContent, TooltipPortal, useForwardPropsEmits } from 'reka-ui'
+import { cn } from '@/lib/utils'
+
+defineOptions({
+  inheritAttrs: false,
+})
+
+const props = withDefaults(defineProps<TooltipContentProps & { class?: HTMLAttributes['class'] }>(), {
+  sideOffset: 0,
+})
+
+const emits = defineEmits<TooltipContentEmits>()
+
+const delegatedProps = reactiveOmit(props, 'class')
+const forwarded = useForwardPropsEmits(delegatedProps, emits)
+</script>
+
+<template>
+  <TooltipPortal>
+    <TooltipContent
+      data-slot="tooltip-content"
+      v-bind="{ ...forwarded, ...$attrs }"
+      :class="cn('data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-[state=delayed-open]:animate-in data-[state=delayed-open]:fade-in-0 data-[state=delayed-open]:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 inline-flex items-center gap-1.5 rounded-xl px-3 py-1.5 text-xs has-data-[slot=kbd]:pr-1.5 **:data-[slot=kbd]:relative **:data-[slot=kbd]:isolate **:data-[slot=kbd]:z-50 **:data-[slot=kbd]:rounded-lg bg-foreground text-background z-50 w-fit max-w-xs origin-(--reka-tooltip-content-transform-origin)', props.class)"
+    >
+      <slot />
+
+      <TooltipArrow class="size-2.5 rotate-45 rounded-[2px] data-[side=left]:translate-x-[-1.5px] data-[side=right]:translate-x-[1.5px] bg-foreground fill-foreground z-50 translate-y-[calc(-50%_-_2px)]" />
+    </TooltipContent>
+  </TooltipPortal>
+</template>
diff --git a/app/components/ui/tooltip/TooltipProvider.vue b/app/components/ui/tooltip/TooltipProvider.vue
new file mode 100644
index 0000000..8cc971f
--- /dev/null
+++ b/app/components/ui/tooltip/TooltipProvider.vue
@@ -0,0 +1,14 @@
+<script setup lang="ts">
+import type { TooltipProviderProps } from 'reka-ui'
+import { TooltipProvider } from 'reka-ui'
+
+const props = withDefaults(defineProps<TooltipProviderProps>(), {
+  delayDuration: 0,
+})
+</script>
+
+<template>
+  <TooltipProvider v-bind="props">
+    <slot />
+  </TooltipProvider>
+</template>
diff --git a/app/components/ui/tooltip/TooltipTrigger.vue b/app/components/ui/tooltip/TooltipTrigger.vue
new file mode 100644
index 0000000..59f16b6
--- /dev/null
+++ b/app/components/ui/tooltip/TooltipTrigger.vue
@@ -0,0 +1,15 @@
+<script setup lang="ts">
+import type { TooltipTriggerProps } from 'reka-ui'
+import { TooltipTrigger } from 'reka-ui'
+
+const props = defineProps<TooltipTriggerProps>()
+</script>
+
+<template>
+  <TooltipTrigger
+    data-slot="tooltip-trigger"
+    v-bind="props"
+  >
+    <slot />
+  </TooltipTrigger>
+</template>
diff --git a/app/components/ui/tooltip/index.ts b/app/components/ui/tooltip/index.ts
new file mode 100644
index 0000000..5ab9653
--- /dev/null
+++ b/app/components/ui/tooltip/index.ts
@@ -0,0 +1,4 @@
+export { default as Tooltip } from './Tooltip.vue'
+export { default as TooltipContent } from './TooltipContent.vue'
+export { default as TooltipProvider } from './TooltipProvider.vue'
+export { default as TooltipTrigger } from './TooltipTrigger.vue'
diff --git a/app/utils/format.ts b/app/utils/format.ts
new file mode 100644
index 0000000..39ae075
--- /dev/null
+++ b/app/utils/format.ts
@@ -0,0 +1,36 @@
+// app/utils/format.ts - 文本格式化工具
+
+/**
+ * 将选项字符串从"字母在上、内容在下"的换行格式合并为"字母. 内容"的单行格式。
+ * 例如：
+ *   输入：`A.\n错\nB.\n对`
+ *   输出：`A. 错\nB. 对`
+ */
+export function formatOptions(options: string): string {
+  // 匹配类似 "A." 开头的选项标记，将其后紧跟的换行内容合并到同一行
+  return options.replace(/^([A-Za-z]\.)\s*\n\s*/gm, "$1 ");
+}
+
+/**
+ * 将选项字符串拆分为逐行结构，标记哪些行是正确答案。
+ * answer 按 # 分隔（多选），与选项正文做等值匹配（大小写不敏感）。
+ */
+export function getOptionLines(
+  options: string,
+  answer: string
+): { text: string; isCorrect: boolean }[] {
+  const segments = answer
+    .split("#")
+    .map((s) => s.trim().toUpperCase())
+    .filter(Boolean);
+
+  return formatOptions(options)
+    .split("\n")
+    .filter((line) => line.trim())
+    .map((line) => {
+      const match = line.match(/^[A-Za-z]\.\s*(.*)/);
+      const content = match?.[1]?.trim().toUpperCase() ?? "";
+      const isCorrect = content !== "" && segments.includes(content);
+      return { text: line, isCorrect };
+    });
+}
diff --git a/app/utils/index.ts b/app/utils/index.ts
index 5a8d90b..edd6f06 100644
--- a/app/utils/index.ts
+++ b/app/utils/index.ts
@@ -1,2 +1,3 @@
 export * from "./clipboard";
+export * from "./format";
 export * from "./sortableTable";