diff --git a/frontend/src/pages/Resource/Server/List/components/ServerCard.tsx b/frontend/src/pages/Resource/Server/List/components/ServerCard.tsx
index cea72c3b..dc627d9d 100644
--- a/frontend/src/pages/Resource/Server/List/components/ServerCard.tsx
+++ b/frontend/src/pages/Resource/Server/List/components/ServerCard.tsx
@@ -61,8 +61,10 @@ export const ServerCard: React.FC<ServerCardProps> = ({ server, onTest, onEdit,
     };
 
     return (
-        <Card className="group relative flex h-full flex-col justify-between overflow-visible border transition-all duration-200 hover:border-primary/40 hover:shadow-lg">
-            <CardContent className="relative flex flex-1 flex-col gap-3 p-3">
+        <Card className={`group relative flex h-full flex-col justify-between overflow-visible border transition-all duration-200 hover:border-primary/40 hover:shadow-lg ${
+            expanded ? 'rounded-b-none border-b-0' : ''
+        }`}>
+            <CardContent className="flex flex-1 flex-col gap-3 p-3">
                 {/* 基础信息 */}
                 <div className="flex items-start gap-3">
                     <div className="flex h-9 w-9 flex-shrink-0 items-center justify-center rounded-lg bg-muted/50">
@@ -202,94 +204,94 @@ export const ServerCard: React.FC<ServerCardProps> = ({ server, onTest, onEdit,
                         </Tooltip>
                     </div>
                 </div>
-
-                {/* 展开内容 */}
-                {expanded && (
-                    <div className="absolute left-0 right-0 top-full z-20 -mt-px space-y-3 rounded-b-xl border border-border border-t bg-card p-3 text-xs shadow-lg">
-                        <div className="flex flex-wrap items-center gap-2">
-                            {renderValue(
-                                <span className="text-muted-foreground">
-                                    SSH：
-                                    <span className="ml-1 font-medium text-foreground">
-                                        {(server.sshUser || 'root') + ':' + (server.sshPort || 22)}
-                                    </span>
-                                </span>,
-                                'w-32'
-                            )}
-                            {server.authType && (
-                                <Badge variant="secondary" className="text-[11px]">
-                                    {server.authType === 'PASSWORD' ? '密码认证' : '密钥认证'}
-                                </Badge>
-                            )}
-                        </div>
-                        <div className="grid grid-cols-3 gap-2 text-center">
-                            <div className="flex flex-col items-center gap-1">
-                                <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
-                                    <Cpu className="h-4 w-4" />
-                                </div>
-                                {renderValue(
-                                    server.cpuCores ? (
-                                        <span className="text-xs font-medium text-foreground">{server.cpuCores}核</span>
-                                    ) : null,
-                                    'w-10',
-                                    { skeleton: true, skeletonHeight: 'h-4' }
-                                )}
-                            </div>
-                            <div className="flex flex-col items-center gap-1">
-                                <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
-                                    <MemoryStick className="h-4 w-4" />
-                                </div>
-                                {renderValue(
-                                    server.memorySize ? (
-                                        <span className="text-xs font-medium text-foreground">{server.memorySize}GB</span>
-                                    ) : null,
-                                    'w-10',
-                                    { skeleton: true, skeletonHeight: 'h-4' }
-                                )}
-                            </div>
-                            <div className="flex flex-col items-center gap-1">
-                                <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
-                                    <HardDrive className="h-4 w-4" />
-                                </div>
-                                {renderValue(
-                                    server.diskSize ? (
-                                        <span className="text-xs font-medium text-foreground">{server.diskSize}GB</span>
-                                    ) : null,
-                                    'w-10',
-                                    { skeleton: true, skeletonHeight: 'h-4' }
-                                )}
-                            </div>
-                        </div>
-
-                        {server.tags && (() => {
-                            try {
-                                const tags = JSON.parse(server.tags);
-                                if (Array.isArray(tags) && tags.length > 0) {
-                                    return (
-                                        <div className="flex flex-wrap gap-1">
-                                            {tags.slice(0, 3).map((tag: string, index: number) => (
-                                                <Badge key={index} variant="outline" className="text-[11px]">
-                                                    {tag}
-                                                </Badge>
-                                            ))}
-                                            {tags.length > 3 && (
-                                                <Badge variant="outline" className="text-[11px]">+{tags.length - 3}</Badge>
-                                            )}
-                                        </div>
-                                    );
-                                }
-                            } catch {
-                                return null;
-                            }
-                            return null;
-                        })()}
-
-                        {server.description ? (
-                            <p className="text-xs text-muted-foreground line-clamp-3">{server.description}</p>
-                        ) : null}
-                    </div>
-                )}
             </CardContent>
+
+            {/* 展开内容 */}
+            {expanded && (
+                <div className="absolute left-[-1px] right-[-1px] top-full z-20 space-y-3 rounded-b-xl border-x border-b border-border bg-card p-3 text-xs shadow-lg group-hover:border-primary/40">
+                    <div className="flex flex-wrap items-center gap-2">
+                        {renderValue(
+                            <span className="text-muted-foreground">
+                                SSH：
+                                <span className="ml-1 font-medium text-foreground">
+                                    {(server.sshUser || 'root') + ':' + (server.sshPort || 22)}
+                                </span>
+                            </span>,
+                            'w-32'
+                        )}
+                        {server.authType && (
+                            <Badge variant="secondary" className="text-[11px]">
+                                {server.authType === 'PASSWORD' ? '密码认证' : '密钥认证'}
+                            </Badge>
+                        )}
+                    </div>
+                    <div className="grid grid-cols-3 gap-2 text-center">
+                        <div className="flex flex-col items-center gap-1">
+                            <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
+                                <Cpu className="h-4 w-4" />
+                            </div>
+                            {renderValue(
+                                server.cpuCores ? (
+                                    <span className="text-xs font-medium text-foreground">{server.cpuCores}核</span>
+                                ) : null,
+                                'w-10',
+                                { skeleton: true, skeletonHeight: 'h-4' }
+                            )}
+                        </div>
+                        <div className="flex flex-col items-center gap-1">
+                            <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
+                                <MemoryStick className="h-4 w-4" />
+                            </div>
+                            {renderValue(
+                                server.memorySize ? (
+                                    <span className="text-xs font-medium text-foreground">{server.memorySize}GB</span>
+                                ) : null,
+                                'w-10',
+                                { skeleton: true, skeletonHeight: 'h-4' }
+                            )}
+                        </div>
+                        <div className="flex flex-col items-center gap-1">
+                            <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary/10 text-primary">
+                                <HardDrive className="h-4 w-4" />
+                            </div>
+                            {renderValue(
+                                server.diskSize ? (
+                                    <span className="text-xs font-medium text-foreground">{server.diskSize}GB</span>
+                                ) : null,
+                                'w-10',
+                                { skeleton: true, skeletonHeight: 'h-4' }
+                            )}
+                        </div>
+                    </div>
+
+                    {server.tags && (() => {
+                        try {
+                            const tags = JSON.parse(server.tags);
+                            if (Array.isArray(tags) && tags.length > 0) {
+                                return (
+                                    <div className="flex flex-wrap gap-1">
+                                        {tags.slice(0, 3).map((tag: string, index: number) => (
+                                            <Badge key={index} variant="outline" className="text-[11px]">
+                                                {tag}
+                                            </Badge>
+                                        ))}
+                                        {tags.length > 3 && (
+                                            <Badge variant="outline" className="text-[11px]">+{tags.length - 3}</Badge>
+                                        )}
+                                    </div>
+                                );
+                            }
+                        } catch {
+                            return null;
+                        }
+                        return null;
+                    })()}
+
+                    {server.description ? (
+                        <p className="text-xs text-muted-foreground line-clamp-3">{server.description}</p>
+                    ) : null}
+                </div>
+            )}
         </Card>
     );
 };