diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a30b29..50b45d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,12 +8,15 @@
 
 - AI 网关端点列表恢复展示 OpenAI Chat Completions 接口（`POST /ai/v1/chat/completions`），标明支持流式与非流式调用
 - 租户列表分页支持 10 / 20 / 50 / 100 条每页切换
+- 设置 · 关于新增「运行状态」面板：运行时长（随查看自增）与 CPU 均值 / 内存（堆）/ 存储占用 / Goroutines 四格指标，明暗主题与窄屏两列自适应；旧版后端缺运行时字段时面板自动隐藏
+- 代理列表新增「关联租户」管理：弹窗回显当前关联名单（支持点 ✕ 移除），多选增删保存即设置全集，选中已关联其他代理的租户时提示保存后改挂
 
 ### Changed
 
 - 回传日志告警统一改由「通知管理 → 云端事件」分类推送，租户删除提示同步移除已废弃的告警规则清理项
 - 总览页租户测活列表改为限高滚动，「查看全部租户」入口固定展示
 - 系统日志、OCI 审计日志与配额表格取消固定高度，分页内容随页面完整展开
+- 代理列表「认证」列由用户名明文拼接改为「是 / 否」徽标，悬停「是」显示用户名（无用户名提示仅密码认证）
 
 ### Removed
 
@@ -22,6 +25,7 @@
 ### Fixed
 
 - 修复租户列表分页状态在页面重绘时丢失，以及筛选后停留在越界页码的问题
+- 修复「引导卷（GB）」等可清空数字输入框的步进箭头挤出输入框右缘的错位；清空图标改为悬浮在步进竖栏左侧，输入文本自动避让
 
 ## [0.2.0] - 2026-07-12
 
diff --git a/src/api/mock.ts b/src/api/mock.ts
index b56bfc6..305d0e4 100644
--- a/src/api/mock.ts
+++ b/src/api/mock.ts
@@ -113,8 +113,9 @@ export const mockConfigs: OciConfig[] = [
     promotionStatus: 'EXPIRED',
     multiRegion: true,
     multiCompartment: true,
-    proxyId: null,
-    proxyName: '',
+    // 与 mockProxies[0].usedBy = 1 呼应:主号经东京 socks5 出站
+    proxyId: 1,
+    proxyName: '东京 socks5',
   }),
   cfg({
     id: 2,
diff --git a/src/api/proxies.ts b/src/api/proxies.ts
index 29e57c1..e339015 100644
--- a/src/api/proxies.ts
+++ b/src/api/proxies.ts
@@ -1,4 +1,4 @@
-import { mockProxies } from './mock'
+import { mockConfigs, mockProxies } from './mock'
 import { mockOn, mocked, request } from './request'
 import type { ProxyImportResult, ProxyInfo, ProxyInput } from '@/types/api'
 
@@ -78,6 +78,22 @@ export function importProxies(text: string): Promise<ProxyImportResult> {
   return request('/proxies/import', { method: 'POST', body: { text } })
 }
 
+/** 代理侧设置关联租户全集:选中即关联(含从其他代理改挂),未选中即解除 */
+export function setProxyTenants(id: number, ociConfigIds: number[]): Promise<{ usedBy: number }> {
+  if (mockOn) {
+    const found = mockProxies.find((p) => p.id === id)
+    if (!found) return Promise.reject(new Error('代理不存在'))
+    for (const c of mockConfigs) {
+      if (ociConfigIds.includes(c.id)) Object.assign(c, { proxyId: id, proxyName: found.name })
+      else if (c.proxyId === id) Object.assign(c, { proxyId: null, proxyName: '' })
+    }
+    // 改挂会影响其他代理的引用数,全量重算保持一致
+    for (const p of mockProxies) p.usedBy = mockConfigs.filter((c) => c.proxyId === p.id).length
+    return mocked({ usedBy: found.usedBy })
+  }
+  return request(`/proxies/${id}/tenants`, { method: 'PUT', body: { ociConfigIds } })
+}
+
 /** 手动重测出口地区,同步返回最新视图 */
 export function probeProxy(id: number): Promise<ProxyInfo> {
   if (mockOn) {
diff --git a/src/api/settings.ts b/src/api/settings.ts
index c574d7a..b8088ca 100644
--- a/src/api/settings.ts
+++ b/src/api/settings.ts
@@ -181,6 +181,17 @@ export function getAbout(): Promise<AboutInfo> {
       buildTime: '2026-07-09T12:00Z',
       goVersion: 'go1.26.4',
       platform: 'linux/amd64',
+      startedAt: '2026-07-01T08:23:00+08:00',
+      uptimeSeconds: 1053360, // 12 天 4 小时 36 分
+      resources: {
+        cpuAvgPercent: 1.4,
+        numCpu: 4,
+        goroutines: 36,
+        memHeapBytes: 50537000,
+        memSysBytes: 101187000,
+        dbEngine: 'sqlite',
+        dbBytes: 13212000,
+      },
     })
   return request('/about')
 }
diff --git a/src/assets/main.css b/src/assets/main.css
index 0168434..0a30c7c 100644
--- a/src/assets/main.css
+++ b/src/assets/main.css
@@ -168,6 +168,19 @@ body {
   background: var(--color-wash);
   color: var(--color-ink);
 }
+/* clearable 时 naive-ui 在 suffix 首位多渲染 .n-base-clear,会被上面的
+   2 行网格自动排进隐式第 2 列、把 26px 竖栏撑爆(箭头溢出框外)——
+   绝对定位使其脱离网格流,悬浮在竖栏左侧;文本区同步加宽避让清空图标 */
+.app-input-number .n-input__suffix .n-base-clear {
+  position: absolute;
+  right: 100%;
+  top: 50%;
+  transform: translateY(-50%);
+  margin-right: 5px;
+}
+.app-input-number .n-input:has(.n-base-clear) .n-input-wrapper {
+  padding-right: 52px;
+}
 
 /* useToast 可展开详情:toast 内嵌代码块(标签 + 复制 + 内滚 pre)。
    message 经 teleport 渲染于 body,组件 scoped 样式不可达,故置于全局。 */
diff --git a/src/components/proxy/ProxyPanel.vue b/src/components/proxy/ProxyPanel.vue
index 27e9a0a..0f07bc3 100644
--- a/src/components/proxy/ProxyPanel.vue
+++ b/src/components/proxy/ProxyPanel.vue
@@ -22,6 +22,8 @@ import {
 import AppInputNumber from '@/components/AppInputNumber.vue'
 import FootNote from '@/components/FootNote.vue'
 import FormField from '@/components/FormField.vue'
+import ProxyTenantsModal from '@/components/proxy/ProxyTenantsModal.vue'
+import StatusBadge from '@/components/StatusBadge.vue'
 import { useAsync } from '@/composables/useAsync'
 import type { ProxyImportResult, ProxyInfo } from '@/types/api'
 import { useToast } from '@/composables/useToast'
@@ -120,6 +122,15 @@ async function remove(row: ProxyInfo) {
   }
 }
 
+// ---- 关联租户管理 ----
+const showTenants = ref(false)
+const tenantsFor = ref<ProxyInfo | null>(null)
+
+function openTenants(row: ProxyInfo) {
+  tenantsFor.value = row
+  showTenants.value = true
+}
+
 // ---- 手动重测出口地区 ----
 const probingIds = ref(new Set<number>())
 
@@ -207,13 +218,15 @@ const columns: DataTableColumns<ProxyInfo> = [
   {
     title: '认证',
     key: 'username',
-    width: 110,
-    render: (row) =>
-      h(
-        'span',
-        { class: 'text-[12.5px] text-ink-2' },
-        row.username ? `${row.username}${row.passwordSet ? ' / ●●●' : ''}` : row.passwordSet ? '●●●' : '无',
-      ),
+    width: 76,
+    render: (row) => {
+      const has = !!row.username || row.passwordSet
+      // 悬停「是」可见用户名(无用户名则提示仅密码)
+      const title = has ? (row.username ? `用户名 ${row.username}` : '仅密码认证') : undefined
+      return h('span', { title }, [
+        h(StatusBadge, { kind: has ? 'run' : 'check', label: has ? '是' : '否', dot: false }),
+      ])
+    },
   },
   {
     title: '关联租户',
@@ -225,7 +238,7 @@ const columns: DataTableColumns<ProxyInfo> = [
   {
     title: '操作',
     key: 'actions',
-    width: 168,
+    width: 236,
     render: (row) =>
       h('div', { class: 'flex items-center gap-1' }, [
         h(
@@ -233,6 +246,7 @@ const columns: DataTableColumns<ProxyInfo> = [
           { size: 'tiny', quaternary: true, loading: probingIds.value.has(row.id), onClick: () => probe(row) },
           () => '重测',
         ),
+        h(NButton, { size: 'tiny', quaternary: true, onClick: () => openTenants(row) }, () => '关联租户'),
         h(NButton, { size: 'tiny', quaternary: true, onClick: () => openEdit(row) }, () => '编辑'),
         h(
           NPopconfirm,
@@ -261,6 +275,12 @@ const columns: DataTableColumns<ProxyInfo> = [
       支持 SOCKS5 / HTTP / HTTPS;密码 AES 加密存储、不回显明文;地区为经代理实测的出口位置(ip-api.com),创建后自动检测;被租户关联的代理不可删除,请先解除关联
     </FootNote>
 
+    <ProxyTenantsModal
+      v-model:show="showTenants"
+      :proxy="tenantsFor"
+      @saved="void proxies.run({ silent: true })"
+    />
+
     <NModal
       v-model:show="showForm"
       preset="card"
diff --git a/src/components/proxy/ProxyTenantsModal.vue b/src/components/proxy/ProxyTenantsModal.vue
new file mode 100644
index 0000000..f976344
--- /dev/null
+++ b/src/components/proxy/ProxyTenantsModal.vue
@@ -0,0 +1,130 @@
+<script setup lang="ts">
+import { NButton, NModal } from 'naive-ui'
+import { computed, ref, watch } from 'vue'
+
+import { listConfigs } from '@/api/configs'
+import { setProxyTenants } from '@/api/proxies'
+import FormField from '@/components/FormField.vue'
+import TenantPicker from '@/components/TenantPicker.vue'
+import { useAsync } from '@/composables/useAsync'
+import type { ProxyInfo } from '@/types/api'
+import { useToast } from '@/composables/useToast'
+
+/** 代理侧关联租户管理:打开时回显当前关联名单,多选增删,保存即设置全集
+ *  (选中即关联,含从其他代理改挂;取消选中即解除)。 */
+const props = defineProps<{ show: boolean; proxy: ProxyInfo | null }>()
+const emit = defineEmits<{ 'update:show': [boolean]; saved: [] }>()
+
+const message = useToast()
+const configs = useAsync(listConfigs, false)
+const selected = ref<number[]>([])
+const saving = ref(false)
+
+watch(
+  () => props.show,
+  async (v) => {
+    if (!v || !props.proxy) return
+    selected.value = []
+    await configs.run()
+    const pid = props.proxy.id
+    selected.value = (configs.data.value ?? []).filter((c) => c.proxyId === pid).map((c) => c.id)
+  },
+)
+
+const all = computed(() => configs.data.value ?? [])
+
+/** 当前选中名单(打开时即已关联名单),chips 展示并支持点 × 移除 */
+const picked = computed(() => all.value.filter((c) => selected.value.includes(c.id)))
+
+/** 选中但已挂其他代理的租户:保存即改挂,给出警示 */
+const rebinding = computed(() =>
+  picked.value.filter((c) => c.proxyId !== null && c.proxyId !== props.proxy?.id),
+)
+
+function removeOne(id: number) {
+  selected.value = selected.value.filter((v) => v !== id)
+}
+
+async function save() {
+  if (!props.proxy) return
+  saving.value = true
+  try {
+    const res = await setProxyTenants(props.proxy.id, selected.value)
+    message.success(`已更新关联,当前 ${res.usedBy} 个租户经此代理出站`)
+    emit('update:show', false)
+    emit('saved')
+  } catch (e) {
+    message.error(e instanceof Error ? e.message : '保存失败')
+  } finally {
+    saving.value = false
+  }
+}
+</script>
+
+<template>
+  <NModal
+    :show="show"
+    preset="card"
+    :title="`关联租户 · ${proxy?.name ?? ''}`"
+    :style="{ width: '480px', maxWidth: 'calc(100vw - 24px)' }"
+    @update:show="emit('update:show', $event)"
+  >
+    <FormField label="关联租户" hint="选中即关联,取消选中即解除;关联后租户全部 SDK 请求经此代理出站">
+      <TenantPicker
+        v-model:values="selected"
+        multiple
+        :configs="all"
+        :loading="configs.loading.value"
+        placeholder="选择要关联的租户"
+      />
+    </FormField>
+
+    <div v-if="picked.length" class="mb-3 flex flex-wrap gap-1.5">
+      <span
+        v-for="c in picked"
+        :key="c.id"
+        class="inline-flex items-center gap-1 rounded-full border border-line bg-wash px-2.5 py-0.5 text-[11.5px] font-medium text-ink-2"
+      >
+        {{ c.alias }}
+        <button
+          type="button"
+          class="cursor-pointer text-ink-3 hover:text-err"
+          :aria-label="`移除 ${c.alias}`"
+          @click="removeOne(c.id)"
+        >
+          ✕
+        </button>
+      </span>
+    </div>
+    <div v-else class="mb-3 text-xs text-ink-3">暂无租户关联此代理</div>
+
+    <div
+      v-if="rebinding.length"
+      class="mb-3 flex items-start gap-2 rounded-lg border border-warn/30 bg-warn/10 px-3 py-2.5 text-xs leading-relaxed"
+    >
+      <svg
+        class="mt-0.5 h-[14px] w-[14px] flex-none text-warn"
+        viewBox="0 0 24 24"
+        fill="none"
+        stroke="currentColor"
+        stroke-width="2"
+      >
+        <path d="M10.3 3.9 1.8 18a2 2 0 0 0 1.7 3h17a2 2 0 0 0 1.7-3L13.7 3.9a2 2 0 0 0-3.4 0z" />
+        <path d="M12 9v4M12 17h.01" />
+      </svg>
+      <span>
+        <template v-for="(c, i) in rebinding" :key="c.id">
+          <template v-if="i > 0">、</template>
+          <b>{{ c.alias }}</b>
+          <span v-if="c.proxyName" class="text-ink-3">（现挂 {{ c.proxyName }}）</span>
+        </template>
+        已关联其他代理,保存后将改挂到本代理
+      </span>
+    </div>
+
+    <div class="mt-1 flex items-center gap-2">
+      <NButton size="small" type="primary" :loading="saving" @click="save">保存</NButton>
+      <NButton size="small" quaternary @click="emit('update:show', false)">取消</NButton>
+    </div>
+  </NModal>
+</template>
diff --git a/src/components/settings/AboutTab.vue b/src/components/settings/AboutTab.vue
index a4794ef..dc31ebc 100644
--- a/src/components/settings/AboutTab.vue
+++ b/src/components/settings/AboutTab.vue
@@ -1,9 +1,10 @@
 <script setup lang="ts">
 import { NButton, NSpin } from 'naive-ui'
-import { onMounted, ref } from 'vue'
+import { computed, onMounted, onUnmounted, ref } from 'vue'
 
 import { getAbout } from '@/api/settings'
 import AppLogo from '@/components/AppLogo.vue'
+import { fmtBytes, fmtTime } from '@/composables/useFormat'
 import { useParticles } from '@/composables/useParticles'
 import { useAppStore } from '@/stores/app'
 import type { AboutInfo } from '@/types/api'
@@ -20,15 +21,56 @@ const loading = ref(true)
 const pcanvas = ref<HTMLCanvasElement | null>(null)
 useParticles(pcanvas, { count: 26 })
 
+// 运行时长随查看自增:记录拉取时刻,30s 粒度刷新本地流逝时间
+const loadedAt = ref(0)
+const nowTick = ref(0)
+let upTimer: ReturnType<typeof setInterval> | null = null
+
 onMounted(async () => {
   try {
     info.value = await getAbout()
+    loadedAt.value = nowTick.value = Date.now()
+    upTimer = setInterval(() => (nowTick.value = Date.now()), 30_000)
   } catch {
     /* 构建信息加载失败不阻塞页面,chips 显示占位 */
   } finally {
     loading.value = false
   }
 })
+onUnmounted(() => {
+  if (upTimer) clearInterval(upTimer)
+})
+
+/** 运行时长分段:天(为 0 时省略)/ 小时 / 分 */
+const uptimeParts = computed(() => {
+  const base = info.value?.uptimeSeconds
+  if (base === undefined) return []
+  const sec = base + Math.max(0, (nowTick.value - loadedAt.value) / 1000)
+  const d = Math.floor(sec / 86400)
+  const h = Math.floor((sec % 86400) / 3600)
+  const parts: { v: number; u: string }[] = []
+  if (d > 0) parts.push({ v: d, u: '天' })
+  if (d > 0 || h > 0) parts.push({ v: h, u: '小时' })
+  parts.push({ v: Math.floor((sec % 3600) / 60), u: '分' })
+  return parts
+})
+
+const DB_LABEL: Record<string, string> = { sqlite: 'SQLite', mysql: 'MySQL', postgres: 'PostgreSQL' }
+
+/** 四格资源指标:值与单位拆开渲染,sub 为口径说明 */
+const statCells = computed(() => {
+  const r = info.value?.resources
+  if (!r) return []
+  const heap = fmtBytes(r.memHeapBytes).split(' ')
+  const store = r.dbBytes >= 0 ? fmtBytes(r.dbBytes).split(' ') : ['—', '']
+  const db = DB_LABEL[r.dbEngine] ?? r.dbEngine
+  return [
+    { label: 'CPU 均值', value: String(r.cpuAvgPercent), unit: '%', sub: `${r.numCpu} 核 · 占单核百分比` },
+    { label: '内存（堆）', value: heap[0], unit: heap[1], sub: `向系统申请 ${fmtBytes(r.memSysBytes)}` },
+    { label: '存储占用', value: store[0], unit: store[1], sub: r.dbBytes >= 0 ? `${db} 含 WAL 日志` : `${db} 外部数据库,不可度量` },
+    { label: 'Goroutines', value: String(r.goroutines), unit: '', sub: '运行时并发任务数' },
+  ]
+})
 
 function fmtBuild(t: string) {
   return t ? t.replace('T', ' ').replace('Z', ' UTC') : '—'
@@ -69,6 +111,40 @@ function openRepo() {
       </div>
     </div>
 
+    <!-- 运行状态:运行时长随查看自增,资源指标为进程自启动累计口径 -->
+    <div v-if="info?.resources" class="panel">
+      <div
+        class="flex items-center justify-between gap-3 border-b border-line-soft px-5 py-3.5 max-md:flex-col max-md:items-start max-md:gap-1"
+      >
+        <div class="flex items-center gap-2">
+          <span class="live-dot"></span>
+          <span class="text-[13px] font-semibold">运行状态</span>
+        </div>
+        <span class="text-xs text-ink-3">
+          自 {{ fmtTime(info.startedAt) }} 启动 · 指标为进程自启动累计口径
+        </span>
+      </div>
+      <div class="px-5 pt-[22px] pb-5">
+        <div class="text-xs font-medium text-ink-2">运行时间</div>
+        <div class="mt-1.5 text-[38px] leading-[1.1] font-semibold tracking-[-0.6px]">
+          <template v-for="p in uptimeParts" :key="p.u"
+            >{{ p.v }}<span class="uptime-unit">{{ p.u }}</span></template
+          >
+        </div>
+      </div>
+      <div class="mx-5 h-px bg-line-soft"></div>
+      <div class="grid grid-cols-4 max-md:grid-cols-2">
+        <div v-for="c in statCells" :key="c.label" class="statcell flex flex-col gap-[5px] px-5 pt-4 pb-[18px]">
+          <div class="text-xs font-medium text-ink-2">{{ c.label }}</div>
+          <div class="text-[26px] leading-[1.15] font-semibold tracking-[-0.3px]">
+            <span>{{ c.value }}</span
+            ><span v-if="c.unit" class="ml-0.5 text-sm font-medium text-ink-2">{{ c.unit }}</span>
+          </div>
+          <div class="text-[11.5px] text-ink-3">{{ c.sub }}</div>
+        </div>
+      </div>
+    </div>
+
     <!-- GitHub 仓库 -->
     <div class="panel flex items-center gap-3.5 px-5 py-4">
       <span class="flex h-10 w-10 flex-none items-center justify-center rounded-[9px] bg-wash">
@@ -88,6 +164,35 @@ function openRepo() {
 </template>
 
 <style scoped>
+.live-dot {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: var(--color-ok);
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-ok) 18%, transparent);
+}
+.uptime-unit {
+  margin: 0 8px 0 3px;
+  font-size: 16px;
+  font-weight: 500;
+  letter-spacing: 0;
+  color: var(--color-ink-2);
+}
+.uptime-unit:last-of-type {
+  margin-right: 0;
+}
+/* 四格分栏:桌面竖线分隔;窄屏 2 列换行时第二行改上边框接续 */
+.statcell + .statcell {
+  border-left: 1px solid var(--color-line-soft);
+}
+@media (width < 768px) {
+  .statcell:nth-child(3) {
+    border-left: none;
+  }
+  .statcell:nth-child(n + 3) {
+    border-top: 1px solid var(--color-line-soft);
+  }
+}
 .chip {
   display: inline-flex;
   align-items: center;
diff --git a/src/types/api.ts b/src/types/api.ts
index e074667..2101a2e 100644
--- a/src/types/api.ts
+++ b/src/types/api.ts
@@ -1015,10 +1015,28 @@ export interface AiContentLog {
 }
 
 // ---- 关于 ----
-/** GET /about:构建与运行环境信息 */
+/** 进程资源占用快照,指标为自启动累计口径 */
+export interface AboutResources {
+  /** CPU 自启动均值,占单核百分比(多核并行可超 100) */
+  cpuAvgPercent: number
+  numCpu: number
+  goroutines: number
+  /** Go 堆在用字节数 */
+  memHeapBytes: number
+  /** 向系统申请的总字节数 */
+  memSysBytes: number
+  dbEngine: string
+  /** 数据库磁盘占用;-1 表示外部数据库不可度量 */
+  dbBytes: number
+}
+
+/** GET /about:构建与运行环境信息;运行时字段旧版后端可能缺失 */
 export interface AboutInfo {
   version: string
   buildTime: string
   goVersion: string
   platform: string
+  startedAt?: string
+  uptimeSeconds?: number
+  resources?: AboutResources
 }