diff --git a/frontend/src/pages/HomeObjectDetail.tsx b/frontend/src/pages/HomeObjectDetail.tsx
index 0535423..f306c34 100644
--- a/frontend/src/pages/HomeObjectDetail.tsx
+++ b/frontend/src/pages/HomeObjectDetail.tsx
@@ -1,6 +1,6 @@
 import { ArrowLeftOutlined } from '@ant-design/icons'
 import { useQueryClient } from '@tanstack/react-query'
-import { Alert, Button, Card, Col, Empty, Row, Select, Space, Table, Tag, Typography } from 'antd'
+import { Alert, Button, Card, Col, Collapse, Empty, Row, Select, Space, Table, Tag, Typography } from 'antd'
 import type { ColumnsType } from 'antd/es/table'
 import dayjs from 'dayjs'
 import { useMemo, useState } from 'react'
@@ -56,13 +56,6 @@ function healthColor(score: number | null | undefined): string {
   return 'red'
 }
 
-function formatAge(seconds: number | null | undefined): string {
-  if (seconds == null) return '-'
-  if (seconds < 60) return `${seconds}с`
-  if (seconds < 3600) return `${Math.floor(seconds / 60)}м`
-  return `${Math.floor(seconds / 3600)}ч ${Math.floor((seconds % 3600) / 60)}м`
-}
-
 function uptimeColor(point: DashboardAvailabilityPoint): string {
   if (point.samples === 0) return '#d9d9d9'
   if (point.offline > 0) return '#ff4d4f'
@@ -92,21 +85,6 @@ function UptimeBars({ points, compact = false }: { points: DashboardAvailability
           />
         ))}
       </div>
-      <Row justify="space-between" style={{ marginTop: compact ? 4 : 6 }}>
-        <Typography.Text type="secondary" style={{ fontSize: 12 }}>
-          {dayjs(points[0].bucket_start).format('DD.MM HH:mm')}
-        </Typography.Text>
-        <Typography.Text type="secondary" style={{ fontSize: 12 }}>
-          {dayjs(points[points.length - 1].bucket_end).format('DD.MM HH:mm')}
-        </Typography.Text>
-      </Row>
-      {!compact ? (
-        <Space size={12} style={{ marginTop: 6 }} wrap>
-          <Space size={4}><span style={{ width: 10, height: 10, borderRadius: 2, background: '#52c41a', display: 'inline-block' }} /><Typography.Text type="secondary" style={{ fontSize: 12 }}>online</Typography.Text></Space>
-          <Space size={4}><span style={{ width: 10, height: 10, borderRadius: 2, background: '#ff4d4f', display: 'inline-block' }} /><Typography.Text type="secondary" style={{ fontSize: 12 }}>offline</Typography.Text></Space>
-          <Space size={4}><span style={{ width: 10, height: 10, borderRadius: 2, background: '#d9d9d9', display: 'inline-block' }} /><Typography.Text type="secondary" style={{ fontSize: 12 }}>нет данных</Typography.Text></Space>
-        </Space>
-      ) : null}
     </div>
   )
 }
@@ -148,15 +126,14 @@ export function HomeObjectDetailPage() {
   const grouped = useMemo(() => {
     const rows = devices?.devices ?? []
     let online = 0
-    let warn = 0
+    let offline = 0
+    let unknown = 0
     const byRack = new Map<string, DashboardDeviceNOCItem[]>()
 
     for (const row of rows) {
       if (row.ping_status === 'online') online += 1
-
-      if (row.disk_status === 'warn' || row.disk_status === 'failed') {
-        warn += 1
-      }
+      if (row.ping_status === 'offline') offline += 1
+      if (row.ping_status === 'unknown') unknown += 1
 
       const rackName = row.rack_name && row.rack_name.trim() ? row.rack_name : 'Без стойки'
       if (!byRack.has(rackName)) byRack.set(rackName, [])
@@ -165,35 +142,35 @@ export function HomeObjectDetailPage() {
 
     const rackGroups = Array.from(byRack.entries())
       .sort((a, b) => {
-        if (a[0] === 'Без стойки') return 1
-        if (b[0] === 'Без стойки') return -1
+        if (a[0] === 'Без стойки') return -1
+        if (b[0] === 'Без стойки') return 1
         return a[0].localeCompare(b[0])
       })
       .map(([rack, rowsInRack]) => ({
         rack,
         rows: [...rowsInRack].sort((a, b) => {
-          const aProblem = a.has_problem ? 0 : 1
-          const bProblem = b.has_problem ? 0 : 1
-          if (aProblem !== bProblem) return aProblem - bProblem
           if (a.ping_status !== b.ping_status) {
             if (a.ping_status === 'offline') return -1
             if (b.ping_status === 'offline') return 1
+            if (a.ping_status === 'unknown') return -1
+            if (b.ping_status === 'unknown') return 1
           }
           return a.ip.localeCompare(b.ip)
         }),
       }))
 
-    return { online, warn, rackGroups }
+    return { online, offline, unknown, rackGroups }
   }, [devices])
 
   const columns: ColumnsType<DashboardDeviceNOCItem> = [
     {
       title: 'IP / Hostname',
       key: 'identity',
+      width: 190,
       render: (_, row) => (
-        <Space direction="vertical" size={0}>
+        <Space direction="vertical" size={0} style={{ maxWidth: 170 }}>
           <code>{row.ip}</code>
-          <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+          <Typography.Text type="secondary" ellipsis={{ tooltip: row.hostname ?? '—' }} style={{ fontSize: 12, maxWidth: 170 }}>
             {row.hostname ?? '—'}
           </Typography.Text>
         </Space>
@@ -203,18 +180,24 @@ export function HomeObjectDetailPage() {
       title: 'Категория',
       dataIndex: 'category',
       key: 'category',
-      width: 130,
+      width: 100,
+      ellipsis: true,
+    },
+    {
+      title: 'Роль',
+      key: 'role',
+      width: 90,
+      render: (_, row) => row.role ?? '—',
     },
     {
       title: 'Ping',
       key: 'ping',
-      width: 190,
+      width: 140,
       render: (_, row) => (
         <Space direction="vertical" size={0}>
           <Tag color={statusColor(row.ping_status)}>{row.ping_status}</Tag>
           <Typography.Text type="secondary" style={{ fontSize: 12 }}>
-            {row.ping_checked_at ? dayjs(row.ping_checked_at).format('DD.MM HH:mm:ss') : '—'}
-            {row.last_ping_ms != null ? ` • ${row.last_ping_ms}ms` : ''}
+            {row.last_ping_ms != null ? `${row.last_ping_ms}ms` : '—'}
           </Typography.Text>
         </Space>
       ),
@@ -222,7 +205,7 @@ export function HomeObjectDetailPage() {
     {
       title: 'Uptime',
       key: 'uptime',
-      width: 280,
+      width: 220,
       render: (_, row) => {
         const availability = availabilityByDevice.get(Number(row.device_id))
 
@@ -243,32 +226,6 @@ export function HomeObjectDetailPage() {
         )
       },
     },
-    {
-      title: 'Свежесть',
-      key: 'freshness',
-      width: 110,
-      render: (_, row) => <Tag color={row.ping_fresh ? 'green' : 'orange'}>{formatAge(row.ping_age_sec)}</Tag>,
-    },
-    {
-      title: 'Disk',
-      key: 'disk',
-      width: 140,
-      render: (_, row) =>
-        row.disk_status ? (
-          <Tag color={statusColor(row.disk_status)}>
-            {row.disk_status}
-            {row.disk_max_pct != null ? ` (${row.disk_max_pct}%)` : ''}
-          </Tag>
-        ) : (
-          '—'
-        ),
-    },
-    {
-      title: 'Проблема',
-      key: 'problem',
-      width: 100,
-      render: (_, row) => (row.has_problem ? <Tag color="red">Да</Tag> : <Tag color="green">Нет</Tag>),
-    },
   ]
 
   return (
@@ -319,9 +276,17 @@ export function HomeObjectDetailPage() {
         </Col>
         <Col xs={12} md={6}>
           <Card size="small" loading={summaryLoading} style={{ borderRadius: 12 }}>
-            <Typography.Text type="secondary">Проблемных</Typography.Text>
+            <Typography.Text type="secondary">Unknown</Typography.Text>
             <Typography.Title level={3} style={{ margin: 0 }}>
-              {summary?.totals.problem_devices ?? 0}
+              {grouped.unknown}
+            </Typography.Title>
+          </Card>
+        </Col>
+        <Col xs={12} md={6}>
+          <Card size="small" loading={devicesLoading} style={{ borderRadius: 12 }}>
+            <Typography.Text type="secondary">Offline</Typography.Text>
+            <Typography.Title level={3} style={{ margin: 0, color: '#cf1322' }}>
+              {grouped.offline}
             </Typography.Title>
           </Card>
         </Col>
@@ -333,14 +298,6 @@ export function HomeObjectDetailPage() {
             </Typography.Title>
           </Card>
         </Col>
-        <Col xs={12} md={6}>
-          <Card size="small" loading={devicesLoading} style={{ borderRadius: 12 }}>
-            <Typography.Text type="secondary">Disk warn/failed</Typography.Text>
-            <Typography.Title level={3} style={{ margin: 0, color: '#d46b08' }}>
-              {grouped.warn}
-            </Typography.Title>
-          </Card>
-        </Col>
       </Row>
 
       <Card
@@ -363,29 +320,25 @@ export function HomeObjectDetailPage() {
         {!grouped.rackGroups.length ? (
           <Empty image={Empty.PRESENTED_IMAGE_SIMPLE} description="Устройства не найдены" />
         ) : (
-          <Space direction="vertical" size={12} style={{ width: '100%' }}>
-            {grouped.rackGroups.map((rackGroup) => (
-              <Card
-                key={rackGroup.rack}
-                size="small"
-                title={`${rackGroup.rack} (${rackGroup.rows.length})`}
-                style={{ borderRadius: 10 }}
-              >
+          <Collapse
+            defaultActiveKey={['Без стойки']}
+            items={grouped.rackGroups.map((rackGroup) => ({
+              key: rackGroup.rack,
+              label: `${rackGroup.rack} (${rackGroup.rows.length})`,
+              children: (
                 <Table<DashboardDeviceNOCItem>
                   loading={devicesLoading}
                   dataSource={rackGroup.rows}
                   rowKey="device_id"
                   size="small"
                   pagination={false}
-                  scroll={{ x: 1300 }}
                   columns={columns}
                 />
-              </Card>
-            ))}
-          </Space>
+              ),
+            }))}
+          />
         )}
       </Card>
     </div>
   )
 }
-