diff --git a/frontend-web/src/open-canvas/components/ai-writing/CompletedInterventionCard.tsx b/frontend-web/src/open-canvas/components/ai-writing/CompletedInterventionCard.tsx
index 70619177..5cbc9d99 100644
--- a/frontend-web/src/open-canvas/components/ai-writing/CompletedInterventionCard.tsx
+++ b/frontend-web/src/open-canvas/components/ai-writing/CompletedInterventionCard.tsx
@@ -5,7 +5,7 @@ import {
 } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { buildIntranetSourceUrl } from '@/core/config';
-import type { CompletedIntervention } from '../../types/ai-writing';
+import type { AIMaterial, CompletedIntervention } from '../../types/ai-writing';
 import { OutlineCard } from './OutlineCard';
 import { ReviewCard } from './ReviewCard';
 import { ScoreBar } from './ScoreBar';
@@ -65,35 +65,79 @@ function MaterialCompleted({ record, expanded, onToggle }: { record: CompletedIn
 
       {expanded && record.materials && record.materials.length > 0 && (
         <div className="px-2.5 pb-2.5 pt-1 space-y-1.5 border-t border-green-200/40 dark:border-green-900/20">
-          {record.materials.map((m) => {
-            const pct = Math.round(m.relevanceScore * 100);
-            const barColor =
-              m.relevanceScore >= 0.8 ? 'bg-green-500'
-              : m.relevanceScore >= 0.5 ? 'bg-orange-400'
-              : 'bg-red-400';
-            return (
-              <div key={m.id} className="rounded border border-border/50 bg-background px-2.5 py-1.5 space-y-1">
-                <p className="font-medium leading-snug line-clamp-2">{m.title}</p>
-                <div className="flex items-center gap-2 text-muted-foreground">
-                  <span className="truncate max-w-[100px]">{m.source}</span>
-                  {m.publishedAt && <><span className="text-muted-foreground/40">·</span><span>{m.publishedAt}</span></>}
-                  <div className="flex flex-1 items-center gap-1 min-w-0">
-                    <div className="flex-1 h-1 rounded-full bg-muted overflow-hidden min-w-[40px]">
-                      <div className={cn('h-full rounded-full', barColor)} style={{ width: `${pct}%` }} />
-                    </div>
-                    <span className={cn('shrink-0 text-[10px]', barColor.replace('bg-', 'text-'))}>{pct}%</span>
-                  </div>
-                  {m.recUuid && (
-                    <button type="button"
-                       onClick={() => window.open(buildIntranetSourceUrl(m.recUuid), '_blank', 'noopener,noreferrer')}
-                       className="shrink-0 text-primary hover:underline inline-flex items-center gap-0.5">
-                      原文 <ExternalLink className="size-2.5" />
-                    </button>
-                  )}
-                </div>
-              </div>
-            );
-          })}
+          {record.materials.map((m) => (
+            <CompletedMaterialItem key={m.id} material={m} />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function relevanceLabel(score: number): string {
+  if (score >= 0.8) return '高相关';
+  if (score >= 0.5) return '中相关';
+  return '低相关';
+}
+
+function CompletedMaterialItem({ material }: { material: AIMaterial }) {
+  const [open, setOpen] = useState(false);
+  const pct = Math.round(material.relevanceScore * 100);
+  const barColor =
+    material.relevanceScore >= 0.8 ? 'bg-green-500'
+    : material.relevanceScore >= 0.5 ? 'bg-orange-400'
+    : 'bg-red-400';
+  const hasDetail = !!material.content || !!material.recUuid;
+
+  return (
+    <div className="rounded border border-border/50 bg-background overflow-hidden">
+      <button
+        type="button"
+        onClick={hasDetail ? () => setOpen(v => !v) : undefined}
+        className={cn(
+          'w-full px-2.5 py-1.5 space-y-1 text-left',
+          hasDetail && 'hover:bg-muted/30 transition-colors',
+        )}
+      >
+        <div className="flex items-start gap-1.5">
+          <span className="flex-1 font-medium leading-snug line-clamp-2">{material.title}</span>
+          {hasDetail && (
+            open
+              ? <ChevronDown className="mt-0.5 size-3 shrink-0 text-muted-foreground" />
+              : <ChevronRight className="mt-0.5 size-3 shrink-0 text-muted-foreground" />
+          )}
+        </div>
+        <div className="flex items-center gap-2 text-muted-foreground">
+          <span className="truncate max-w-[100px]">{material.source}</span>
+          {material.publishedAt && <><span className="text-muted-foreground/40">·</span><span>{material.publishedAt}</span></>}
+          <div className="flex flex-1 items-center gap-1 min-w-0">
+            <div className="flex-1 h-1 rounded-full bg-muted overflow-hidden min-w-[40px]">
+              <div className={cn('h-full rounded-full', barColor)} style={{ width: `${pct}%` }} />
+            </div>
+            <span className={cn('shrink-0 text-[10px]', barColor.replace('bg-', 'text-'))}>{pct}%</span>
+            <span className="text-muted-foreground/60 shrink-0 text-[10px]">({relevanceLabel(material.relevanceScore)})</span>
+          </div>
+        </div>
+      </button>
+
+      {open && hasDetail && (
+        <div className="px-2.5 pb-2 pt-1.5 space-y-1.5 border-t border-border/40">
+          {material.content && (
+            <p className="text-muted-foreground leading-relaxed line-clamp-6">
+              {material.content.slice(0, 300)}
+              {material.content.length > 300 && '…'}
+            </p>
+          )}
+          {material.recUuid && (
+            <button
+              type="button"
+              onClick={() => window.open(buildIntranetSourceUrl(material.recUuid), '_blank', 'noopener,noreferrer')}
+              className="inline-flex items-center gap-1 text-primary hover:underline"
+            >
+              查看原文
+              <ExternalLink className="size-2.5" />
+            </button>
+          )}
         </div>
       )}
     </div>