fix+polish(frontend): 预测弹窗打磨 + 全量语义色替换 + 前台交互小项

预测弹窗:
- 修复模板字符串直写 JSX,反引号原样显示在结果面板的 bug
- 入场动画(遮罩淡入+面板上浮);初始聚焦/Tab 焦点陷阱/关闭还焦;
  打开时锁定背景滚动
- 「关闭窗口即取消」→ 如实描述:前端仅停止进度显示,后台任务
  可能仍在执行并消耗额度

语义色:全部 emerald/amber/rose 裸色替换为 ok/warn/bad token
(Standings 分区与走势、KeyRing、定时任务、任务状态点、
数据完整性进度条、预测命中标记、净胜球)。

前台交互:
- 空态跳后台 a[href] → Link,不再整页刷新
- 联赛 tab 溢出右缘渐隐提示 + aria-current
- 状态行右侧计数组加细线分隔,小屏 wrap 后层级仍清晰

.env.example

@@ -3,6 +3,9 @@
 # production 启动时会强制校验:SECRET_KEY 非空且非弱值、鉴权已配置、DB 弱密码阻断。
 APP_ENV=development
 LOG_LEVEL=INFO
+# 日志持久化:空=仅 stdout + Admin 内存日志页(重启清零);填路径则额外写滚动文件(10MB×5)。
+# 本地开发示例: LOG_FILE=./logs/app.log (容器内由 compose 默认设为 /app/logs/app.log 并挂卷)
+LOG_FILE=
 API_PORT=8000
 FRONTEND_PORT=3000
 

.gitignore

@@ -5,6 +5,7 @@ __pycache__/
 .pytest_cache/
 frontend/node_modules/
 frontend/dist/
+logs/
 
 # AI 助手上下文文件(不入库)
 CLAUDE.md

README.md

@@ -203,7 +203,7 @@ Profeto/
 │   │   ├── config.py           # pydantic-settings 配置
 │   │   ├── crypto.py           # 加密/哈希
 │   │   ├── http_client.py      # 共享 httpx 客户端
-│   │   ├── log_buffer.py       # 内存日志缓冲(admin 日志页)
+│   │   ├── log_buffer.py       # 日志基础设施:内存环形缓冲(admin 日志页) + 可选文件持久化(LOG_FILE)
 │   │   ├── runtime_config.py   # DB 配置覆盖(.env → app_settings)
 │   │   ├── scheduler.py        # 进程内 cron 调度器
 │   │   └── security_check.py   # 启动安全校验

docker-compose.yml

@@ -28,6 +28,8 @@ services:
       # Fix 2: 容器内 DATABASE_URL 使用 postgres 服务名(非 localhost)
       # 必须覆盖 .env 中的 DATABASE_URL,因为 Settings 不读 DB_HOST/DB_PORT
       DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER:?POSTGRES_USER 未设置}:${POSTGRES_PASSWORD:?POSTGRES_PASSWORD 未设置}@postgres:5432/${POSTGRES_DB:-football}
+      # 日志持久化:写入挂载卷,容器重建不丢(应用内滚动 10MB×6 份封顶)
+      LOG_FILE: /app/logs/app.log
     env_file: .env
     healthcheck:
       test: ["CMD-SHELL", "python -c \"import urllib.request; exit(0 if urllib.request.urlopen('http://localhost:8000/health/ready', timeout=5).status==200 else 1)\" || exit 1"]
@@ -42,6 +44,7 @@ services:
       - ./src:/app/src
       - ./alembic:/app/alembic
       - ./alembic.ini:/app/alembic.ini
+      - applogs:/app/logs
 
   frontend:
     # Fix 4: 多阶段构建 —— 先 build 静态文件,再复制到 nginx
@@ -57,3 +60,4 @@ services:
 
 volumes:
   pgdata:
+  applogs:

docs/06-deployment.md

@@ -86,6 +86,7 @@ cd frontend && npm install && npm run dev
 |---|---|---|---|
 | `APP_ENV` | ❌ | `development` | `production` / `development` |
 | `LOG_LEVEL` | ❌ | `INFO` | 日志级别 |
+| `LOG_FILE` | ❌ | (空) | 日志持久化文件路径;空=仅 stdout + Admin 内存日志页(重启清零)。compose 已默认设为 `/app/logs/app.log` 并挂 `applogs` 卷,滚动上限约 10MB×6 份 |
 | `API_PORT` | ❌ | `8000` | API 服务端口映射 |
 | `FRONTEND_PORT` | ❌ | `3000` | 前端服务端口映射 |
 | `POSTGRES_USER` | ✅ | — | PostgreSQL 用户名 |

docs/07-development.md

@@ -117,7 +117,7 @@ Profeto/
 │       ├── config.py           # pydantic-settings 配置
 │       ├── http_client.py      # 共享 httpx 客户端
 │       ├── crypto.py           # 对称加密(Fernet)与密码哈希
-│       ├── log_buffer.py       # 内存日志缓冲(admin「系统日志」页)
+│       ├── log_buffer.py       # 日志基础设施:内存环形缓冲(admin 日志页) + 可选滚动文件持久化(LOG_FILE)
 │       ├── runtime_config.py   # 运行时配置(数据库优先,回落 .env)
 │       ├── scheduler.py        # 定时任务调度器(cron 触发采集)
 │       └── security_check.py   # 生产启动安全校验(缺配置拒绝启动)

frontend/src/App.tsx

@@ -11,48 +11,17 @@
  * - 未登录访问管理 → AdminLayout 门禁 → 登录页(不静默失败)
  */
 
-import { BrowserRouter, Routes, Route, Navigate, Link } from 'react-router-dom'
+import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom'
 import { ErrorBoundary } from './components/ErrorBoundary'
+import Masthead from './components/Masthead'
 import Matches from './pages/Matches'
 import Standings from './pages/Standings'
 import { adminRoutes } from './admin/routes'
 
-/** 报眉日期行 */
-function dateLine(): string {
-  return new Date().toLocaleDateString('zh-CN', {
-    year: 'numeric',
-    month: 'long',
-    day: 'numeric',
-    weekday: 'long',
-  })
-}
-
 function StandingsLayout({ children }: { children: React.ReactNode }) {
   return (
     <div className="min-h-screen bg-paper-50">
-      <header className="masthead-rule">
+      <Masthead active="standings" />
-        <div className="mx-auto max-w-5xl px-5 sm:px-8">
-          <div className="border-b border-ink-900 py-5 text-center sm:py-6">
-            <h1 className="font-brush text-5xl text-ink-900 sm:text-6xl">
-              先知
-            </h1>
-          </div>
-          <div className="flex items-center justify-between border-b border-ink-200 py-2 text-2xs text-ink-500">
-            <span>{dateLine()}</span>
-            <nav className="flex items-center gap-4" aria-label="页面导航">
-              <Link to="/" className="text-ink-500 hover:text-press transition-colors">
-                比赛 / 预测
-              </Link>
-              <Link to="/admin/eval" className="text-ink-500 hover:text-press transition-colors">
-                评估
-              </Link>
-              <Link to="/admin" className="flex items-center gap-1 text-ink-500 hover:text-press transition-colors">
-                <span aria-hidden="true">⚙</span> 管理
-              </Link>
-            </nav>
-          </div>
-        </div>
-      </header>
 
       <main className="mx-auto max-w-5xl px-5 py-6 sm:px-8 sm:py-8">
         {children}
@@ -70,30 +39,8 @@ function StandingsLayout({ children }: { children: React.ReactNode }) {
 function HomePage() {
   return (
     <div className="min-h-screen bg-paper-50">
-      {/* ── 报头:粗线 + 居中刊名 + 日期与分区链接 ── */}
+      {/* ── 报头:粗线 + 居中刊名 + 日期与分区链接(共用 Masthead) ── */}
-      <header className="masthead-rule">
+      <Masthead active="home" />
-        <div className="mx-auto max-w-5xl px-5 sm:px-8">
-          <div className="border-b border-ink-900 py-5 text-center sm:py-6">
-            <h1 className="font-brush text-5xl text-ink-900 sm:text-6xl">
-              先知
-            </h1>
-          </div>
-          <div className="flex items-center justify-between border-b border-ink-200 py-2 text-2xs text-ink-500">
-            <span>{dateLine()}</span>
-            <nav className="flex items-center gap-4" aria-label="页面导航">
-              <Link to="/standings" className="text-ink-500 hover:text-press transition-colors">
-                积分榜
-              </Link>
-              <Link to="/admin/eval" className="text-ink-500 hover:text-press transition-colors">
-                评估
-              </Link>
-              <Link to="/admin" className="flex items-center gap-1 text-ink-500 hover:text-press transition-colors">
-                <span aria-hidden="true">⚙</span> 管理
-              </Link>
-            </nav>
-          </div>
-        </div>
-      </header>
 
       <main className="mx-auto max-w-5xl px-5 py-6 sm:px-8 sm:py-8">
         <Matches />

frontend/src/admin/pages/Collection.tsx

@@ -333,8 +333,8 @@ export default function CollectionPage() {
               )}
               {taskStatus === 'done' && (
                 <div className="space-y-2">
-                  <div className="flex items-center gap-2 text-xs text-emerald-700">
+                  <div className="flex items-center gap-2 text-xs text-ok-700">
-                    <span className="inline-block h-2 w-2 rounded-full bg-emerald-500" />
+                    <span className="inline-block h-2 w-2 rounded-full bg-ok-500" />
                     <span>采集完成{jobId ? `(job ${jobId.slice(0, 8)}…)` : ''}</span>
                   </div>
                   {summary && <p className="text-2xs text-ink-500">{summary.detail}</p>}
@@ -373,7 +373,7 @@ export default function CollectionPage() {
                 <div>
                   {recentJobs.map(j => {
                     const st = j.status
-                    const dot = st === 'success' ? 'bg-ink-900' : st === 'failed' ? 'bg-press' : 'bg-amber-500 animate-pulse'
+                    const dot = st === 'success' ? 'bg-ink-900' : st === 'failed' ? 'bg-press' : 'bg-warn-500 animate-pulse'
                     const label = st === 'success' ? '完成' : st === 'failed' ? '失败' : st === 'running' ? '执行中' : '排队中'
                     return (
                       <div key={j.id} className="flex items-center gap-3 border-b border-ink-200 px-4 py-2.5 last:border-b-0 sm:px-5">

frontend/src/admin/pages/DataCompleteness.tsx

@@ -26,9 +26,9 @@ const FIELD_LABELS: Record<string, string> = {
 }
 
 function pctColor(pct: number): string {
-  if (pct >= 80) return 'bg-emerald-500'
+  if (pct >= 80) return 'bg-ok-500'
-  if (pct >= 50) return 'bg-amber-500'
+  if (pct >= 50) return 'bg-warn-500'
-  return 'bg-rose-500'
+  return 'bg-bad-500'
 }
 
 /** 根据问题描述生成可操作的修复链接 */

frontend/src/admin/pages/PredictionHistory.tsx

@@ -90,7 +90,7 @@ export default function PredictionHistoryPage() {
           </Card>
           <Card>
             <CardBody className="text-center">
-              <p className="text-2xl font-bold text-emerald-700">{hitCount}</p>
+              <p className="text-2xl font-bold text-ok-700">{hitCount}</p>
               <p className="text-xs text-ink-500">命中</p>
             </CardBody>
           </Card>
@@ -194,7 +194,7 @@ export default function PredictionHistoryPage() {
                         <td className="px-4 py-3">
                           {p.pred_1x2 ? (
                             <span className={`inline-block border px-1.5 py-0.5 text-2xs ${
-                              predHit === true ? 'border-emerald-300 text-emerald-700 bg-emerald-50' :
+                              predHit === true ? 'border-ok-300 text-ok-700 bg-ok-50' :
                               predHit === false ? 'border-press text-press bg-press-wash' :
                               'border-ink-200 text-ink-600'
                             }`}>

frontend/src/admin/pages/Settings.tsx

@@ -317,11 +317,11 @@ export default function SettingsPage() {
                     return (
                       <div key={i} className={`flex items-center justify-between gap-3 border-b border-ink-100 py-2 last:border-b-0 ${isBlocked ? 'opacity-70' : ''}`}>
                         <div className="flex items-center gap-2">
-                          <span className={`inline-block h-2 w-2 rounded-full ${isBlocked ? 'bg-amber-500' : 'bg-emerald-500'}`} />
+                          <span className={`inline-block h-2 w-2 rounded-full ${isBlocked ? 'bg-warn-500' : 'bg-ok-500'}`} />
                           <span className="font-mono text-xs text-ink-700">{k.masked}</span>
                           {i === keyRing.active_index && <span className="rounded bg-ink-900 px-1.5 py-0.5 text-2xs text-paper-500">当前</span>}
                         </div>
-                        <span className={`text-2xs tabular-nums ${isBlocked ? 'text-amber-600' : 'text-ink-400'}`}>
+                        <span className={`text-2xs tabular-nums ${isBlocked ? 'text-warn-700' : 'text-ink-400'}`}>
                           {isBlocked ? `冷却中 ${k.blocked_remaining.toFixed(0)}s` : '可用'}
                         </span>
                       </div>
@@ -489,7 +489,7 @@ export default function SettingsPage() {
                   <div key={s.id} className="flex flex-col gap-2 border-b border-ink-100 py-3 last:border-b-0 sm:flex-row sm:items-center sm:justify-between">
                     <div className="flex-1 space-y-1">
                       <div className="flex items-center gap-2">
-                        <span className={`inline-block h-2 w-2 rounded-full ${s.enabled ? 'bg-emerald-500' : 'bg-ink-300'}`} />
+                        <span className={`inline-block h-2 w-2 rounded-full ${s.enabled ? 'bg-ok-500' : 'bg-ink-300'}`} />
                         <span className="text-xs font-medium text-ink-800">{s.id}</span>
                         <Badge status={s.enabled ? 'success' : 'muted'}>{s.task}</Badge>
                       </div>

frontend/src/components/BackTop.tsx

@@ -0,0 +1,30 @@
+/**
+ * 回到顶部浮动按钮(前台两页共用,此前 Matches/Standings 各复制一份)。
+ * 方角纸片风:去掉早期版本的 rounded-full + shadow-lg,与全站方角
+ * 无阴影语言对齐;出现/隐藏仅动画 transform 与 opacity。
+ */
+import { useEffect, useState } from 'react'
+
+export default function BackTop({ threshold = 300 }: { threshold?: number }) {
+  const [show, setShow] = useState(false)
+
+  useEffect(() => {
+    const handleScroll = () => setShow(window.scrollY > threshold)
+    window.addEventListener('scroll', handleScroll, { passive: true })
+    return () => window.removeEventListener('scroll', handleScroll)
+  }, [threshold])
+
+  return (
+    <button
+      onClick={() => window.scrollTo({ top: 0, behavior: 'smooth' })}
+      className={`fixed bottom-6 right-6 z-40 flex h-10 w-10 items-center justify-center border border-ink-300 bg-paper-50 text-ink-600 transition-all duration-300 hover:border-ink-900 hover:bg-ink-900 hover:text-paper-50 ${
+        show ? 'translate-y-0 opacity-100' : 'pointer-events-none translate-y-4 opacity-0'
+      }`}
+      aria-label="回到顶部"
+    >
+      <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+        <path strokeLinecap="round" strokeLinejoin="round" d="M5 15l7-7 7 7" />
+      </svg>
+    </button>
+  )
+}

frontend/src/components/Masthead.tsx

@@ -0,0 +1,77 @@
+/**
+ * 报头组件(前台共用)。
+ *
+ * 此前 HomePage 与 StandingsLayout 各自复制一份报头,导航项已经漂移
+ * (首页有「积分榜」、积分榜页有「比赛/预测」),且无当前页高亮。
+ * 现在统一为 Masthead:
+ *   - active 声明当前版面,对应导航项加印报红高亮 + aria-current
+ *   - 「管理」入口改用与全站一致的线条 SVG(替代字符 ⚙)
+ *   - 管理类入口带 title 提示,避免访客被无声踢到登录页
+ * 页脚文案各页不同,仍由调用方自行渲染。
+ */
+import { Link } from 'react-router-dom'
+
+export type MastheadActive = 'home' | 'standings'
+
+function GearIcon() {
+  return (
+    <svg className="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2} aria-hidden="true">
+      <circle cx="12" cy="12" r="3" />
+      <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06A1.65 1.65 0 0 0 9 4.68 1.65 1.65 0 0 0 10 3.17V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z" />
+    </svg>
+  )
+}
+
+function MastheadLink({
+  to,
+  active = false,
+  title,
+  children,
+}: {
+  to: string
+  /** 当前版面才高亮;管理类入口无高亮概念 */
+  active?: boolean
+  title?: string
+  children: React.ReactNode
+}) {
+  return (
+    <Link
+      to={to}
+      title={title}
+      aria-current={active ? 'page' : undefined}
+      className={`transition-colors ${
+        active ? 'font-medium text-press' : 'text-ink-500 hover:text-press'
+      }`}
+    >
+      {children}
+    </Link>
+  )
+}
+
+export default function Masthead({ active }: { active: MastheadActive }) {
+  return (
+    <header className="masthead-rule">
+      <div className="mx-auto max-w-5xl px-5 sm:px-8">
+        <div className="border-b border-ink-900 py-5 text-center sm:py-6">
+          <h1 className="font-brush text-5xl text-ink-900 sm:text-6xl">
+            先知
+          </h1>
+        </div>
+        <div className="flex items-center justify-between border-b border-ink-200 py-2 text-2xs text-ink-500">
+          <span>{new Date().toLocaleDateString('zh-CN', { year: 'numeric', month: 'long', day: 'numeric', weekday: 'long' })}</span>
+          <nav className="flex items-center gap-4" aria-label="页面导航">
+            <MastheadLink to="/" active={active === 'home'}>比赛 / 预测</MastheadLink>
+            <MastheadLink to="/standings" active={active === 'standings'}>积分榜</MastheadLink>
+            {/* 管理类页面对访客需要登录,入口处先说明,避免无声跳登录页 */}
+            <MastheadLink to="/admin/eval" title="评估页面向管理员开放,需登录">评估</MastheadLink>
+            <MastheadLink to="/admin" title="管理后台,需登录">
+              <span className="inline-flex items-center gap-1">
+                <GearIcon /> 管理
+              </span>
+            </MastheadLink>
+          </nav>
+        </div>
+      </div>
+    </header>
+  )
+}

frontend/src/index.css

@@ -103,6 +103,28 @@
   .btn-danger {
     @apply border-press bg-transparent text-press hover:bg-press hover:text-paper-50;
   }
+  /* 描边确认按钮:次级动作中需要比默认 btn 更明确轮廓的场合
+     (此前三处使用但从未定义,样式静默失效) */
+  .btn-outline {
+    @apply border-ink-900 bg-transparent text-ink-900
+           hover:border-press hover:bg-press-wash hover:text-press-dark;
+  }
+
+  /* ── 弹窗入场:遮罩淡入 + 面板上浮(仅 opacity/transform,GPU 友好) ── */
+  .modal-overlay-enter {
+    animation: modal-fade 0.18s ease-out both;
+  }
+  .modal-panel-enter {
+    animation: modal-rise 0.2s cubic-bezier(0.22, 1, 0.36, 1) both;
+  }
+  @keyframes modal-fade {
+    from { opacity: 0; }
+    to { opacity: 1; }
+  }
+  @keyframes modal-rise {
+    from { opacity: 0; transform: translateY(12px); }
+    to { opacity: 1; transform: translateY(0); }
+  }
 
   /* ── 统一空态 ── */
   .empty-state {

frontend/src/pages/Matches.tsx

@@ -10,9 +10,11 @@
  *   matches/components/MatchDetailSection.tsx — 赛程行 + 展开详情
  * 本文件只负责状态装配与版面组织,不含数据获取与展示细节。
  */
-import { useEffect, useState } from 'react'
+import { useEffect, useRef, useState } from 'react'
+import { Link } from 'react-router-dom'
 import { fetchMatchDetail, fetchMatchContext } from '../admin/dal'
 import type { MatchDetailOut, MatchContextOut } from '../admin/types'
+import BackTop from '../components/BackTop'
 import { useMatchesList } from './matches/hooks/useMatchesList'
 import { useMatchPredict } from './matches/hooks/useMatchPredict'
 import { useLeagues } from './matches/hooks/useLeagues'
@@ -38,13 +40,8 @@ export default function Matches() {
     loadMore,
   } = useMatchesList({ onError: setError })
 
-  const {
+  const { predictingId, prediction, predictionFor, predict, closePredict } =
-    predictingId,
+    useMatchPredict({ onError: setError })
-    prediction,
-    predictionFor,
-    predict,
-    closePredict,
-  } = useMatchPredict({ onError: setError })
 
   // ── 详情展开(懒加载,只读,不触发 LLM) ──
   const [expandedId, setExpandedId] = useState<number | null>(null)
@@ -52,16 +49,8 @@ export default function Matches() {
   const [contextMap, setContextMap] = useState<Record<number, MatchContextOut>>({})
   const [detailLoading, setDetailLoading] = useState<number | null>(null)
 
-  // 监听滚动,超过 300px 显示回到顶部按钮
-  const [showBackTop, setShowBackTop] = useState(false)
-  useEffect(() => {
-    const handleScroll = () => setShowBackTop(window.scrollY > 300)
-    window.addEventListener('scroll', handleScroll, { passive: true })
-    return () => window.removeEventListener('scroll', handleScroll)
-  }, [])
-  const scrollToTop = () => window.scrollTo({ top: 0, behavior: 'smooth' })
-
   const leagueName = leagues.find(l => l.code === league)?.name ?? league
+  // 删除本地 showBackTop/scrollToTop,统一使用共享 BackTop 组件
 
   /** 未开赛默认仅展示未来 3 天;其余状态展示全部。showAllUpcoming=true 时展开全部。 */
   const isScheduledView = status === 'scheduled'
@@ -90,20 +79,46 @@ export default function Matches() {
     }
   }
 
+  // 联赛 tab 溢出检测:可向右滚动时右缘显示渐隐提示
+  const leagueNavRef = useRef<HTMLDivElement>(null)
+  const [canScrollRight, setCanScrollRight] = useState(false)
+  useEffect(() => {
+    const el = leagueNavRef.current
+    if (!el) return
+    const update = () => setCanScrollRight(el.scrollWidth - el.scrollLeft - el.clientWidth > 8)
+    update()
+    el.addEventListener('scroll', update, { passive: true })
+    window.addEventListener('resize', update)
+    return () => {
+      el.removeEventListener('scroll', update)
+      window.removeEventListener('resize', update)
+    }
+  }, [leagues])
+
   return (
     <div className="space-y-5">
       {/* ── 联赛版面切换 ── */}
-      <nav className="flex items-center gap-6 overflow-x-auto border-b border-ink-900" aria-label="联赛">
+      <div className="relative">
-        {leagues.map(l => (
+        <nav
-          <button
+          ref={leagueNavRef}
-            key={l.code}
+          className="flex items-center gap-6 overflow-x-auto border-b border-ink-900"
-            onClick={() => setLeague(l.code)}
+          aria-label="联赛"
-            className={`relative tab ${league === l.code ? 'tab-on' : ''} font-serif`}
+        >
-          >
+          {leagues.map(l => (
-            {l.name}
+            <button
-          </button>
+              key={l.code}
-        ))}
+              onClick={() => setLeague(l.code)}
-      </nav>
+              aria-current={league === l.code ? 'true' : undefined}
+              className={`relative tab ${league === l.code ? 'tab-on' : ''} font-serif`}
+            >
+              {l.name}
+            </button>
+          ))}
+        </nav>
+        {canScrollRight && (
+          <div aria-hidden="true" className="pointer-events-none absolute inset-y-0 right-0 w-10 bg-gradient-to-l from-paper-50 to-transparent" />
+        )}
+      </div>
 
       {/* ── 第二行:状态 / 模式 / 日期 / 计数 / 刷新(小屏 flex-wrap) ── */}
       <div className="flex flex-wrap items-center gap-x-4 gap-y-2 text-xs text-ink-500 sm:gap-x-5">
@@ -120,7 +135,7 @@ export default function Matches() {
           />
         </span>
 
-        <span className="ml-auto inline-flex items-center gap-3">
+        <span className="ml-auto inline-flex items-center gap-3 border-l border-ink-200 pl-4">
           <span className="tabular-nums">
             {isScheduledView && !showAllUpcoming && hasHiddenUpcoming
               ? `未来3天 ${visibleMatches.length} / 共 ${matches.length} 场`
@@ -203,9 +218,9 @@ export default function Matches() {
               <>
                 <p className="empty-state-title">本版暂无赛程</p>
                 <p className="empty-state-sub">请先通过「数据采集」导入 {leagueName} 的比赛数据</p>
-                <a href="/admin/collection" className="empty-state-action">
+                <Link to="/admin/collection" className="empty-state-action">
                   前往数据采集 <span aria-hidden="true">→</span>
-                </a>
+                </Link>
               </>
             )}
           </div>
@@ -265,18 +280,8 @@ export default function Matches() {
         )}
       </section>
 
-      {/* 回到顶部按钮 */}
+      {/* ── 回到顶部(共享组件,方角纸片风) ── */}
-      <button
+      <BackTop />
-        onClick={scrollToTop}
-        className={`fixed bottom-6 right-6 z-40 flex h-10 w-10 items-center justify-center rounded-full border border-ink-200 bg-paper-50 text-ink-600 shadow-lg transition-all duration-300 hover:border-ink-400 hover:text-ink-900 ${
-          showBackTop ? 'translate-y-0 opacity-100' : 'translate-y-4 opacity-0 pointer-events-none'
-        }`}
-        aria-label="回到顶部"
-      >
-        <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
-          <path strokeLinecap="round" strokeLinejoin="round" d="M5 15l7-7 7 7" />
-        </svg>
-      </button>
     </div>
   )
 }

frontend/src/pages/Standings.tsx

@@ -6,6 +6,7 @@
  */
 
 import { useEffect, useState, useCallback } from 'react'
+import BackTop from '../components/BackTop'
 import { fetchStandings } from '../admin/dal'
 import type { StandingsLeague, StandingRow } from '../admin/dal'
 import { useLeagues } from './matches/hooks/useLeagues'
@@ -13,24 +14,24 @@ import { Spinner } from '../admin/components'
 
 const ZONE_META: Record<string, { label: string; cls: string }> = {
   // 欧战资格
-  'Champions League': { label: '欧冠区', cls: 'bg-emerald-100 text-emerald-700' },
+  'Champions League': { label: '欧冠区', cls: 'bg-ok-100 text-ok-700' },
-  'Champions League Qualification': { label: '欧冠资格', cls: 'bg-emerald-100 text-emerald-700' },
+  'Champions League Qualification': { label: '欧冠资格', cls: 'bg-ok-100 text-ok-700' },
-  'Europa League': { label: '欧联区', cls: 'bg-amber-100 text-amber-700' },
+  'Europa League': { label: '欧联区', cls: 'bg-warn-100 text-warn-700' },
   'Conference League': { label: '欧协杯', cls: 'bg-sky-100 text-sky-700' },
   'Conference League Qualification': { label: '欧协杯', cls: 'bg-sky-100 text-sky-700' },
   'Europa Conference League': { label: '欧协杯', cls: 'bg-sky-100 text-sky-700' },
   'Europa Conference League Qualification': { label: '欧协杯', cls: 'bg-sky-100 text-sky-700' },
   // 升级
-  'Championship': { label: '升级区', cls: 'bg-emerald-100 text-emerald-700' },
+  'Championship': { label: '升级区', cls: 'bg-ok-100 text-ok-700' },
-  'Promotion': { label: '升级区', cls: 'bg-emerald-100 text-emerald-700' },
+  'Promotion': { label: '升级区', cls: 'bg-ok-100 text-ok-700' },
-  'Promotion Group': { label: '升级组', cls: 'bg-emerald-100 text-emerald-700' },
+  'Promotion Group': { label: '升级组', cls: 'bg-ok-100 text-ok-700' },
   // 降级
-  'Relegation': { label: '降级区', cls: 'bg-rose-100 text-rose-700' },
+  'Relegation': { label: '降级区', cls: 'bg-bad-100 text-bad-700' },
   'Relegation Playoffs': { label: '降级附加赛', cls: 'bg-orange-100 text-orange-700' },
-  'Relegation Group': { label: '降级组', cls: 'bg-rose-100 text-rose-700' },
+  'Relegation Group': { label: '降级组', cls: 'bg-bad-100 text-bad-700' },
   // 附加赛
-  'Playoffs': { label: '附加赛', cls: 'bg-amber-100 text-amber-700' },
+  'Playoffs': { label: '附加赛', cls: 'bg-warn-100 text-warn-700' },
-  'Championship Playoffs': { label: '升级附加赛', cls: 'bg-amber-100 text-amber-700' },
+  'Championship Playoffs': { label: '升级附加赛', cls: 'bg-warn-100 text-warn-700' },
   'Qualification Playoffs': { label: '资格附加赛', cls: 'bg-sky-100 text-sky-700' },
   'Qualification': { label: '资格赛', cls: 'bg-sky-100 text-sky-700' },
 }
@@ -44,7 +45,7 @@ function zoneBadge(zone?: string | null) {
 /** 近期走势串(W/D/L) → 彩色圆点 */
 function FormDots({ form }: { form?: string | null }) {
   if (!form) return <span className="text-2xs text-ink-400">—</span>
-  const colorMap: Record<string, string> = { W: 'bg-emerald-500', D: 'bg-ink-300', L: 'bg-rose-500' }
+  const colorMap: Record<string, string> = { W: 'bg-ok-500', D: 'bg-ink-300', L: 'bg-bad-500' }
   return (
     <span className="inline-flex gap-0.5">
       {form.slice(0, 5).split('').map((c, i) => (
@@ -62,17 +63,6 @@ export default function StandingsPage() {
   const [loading, setLoading] = useState(true)
   const [switching, setSwitching] = useState(false)  // 切换联赛中
   const [error, setError] = useState<string | null>(null)
-  const [showBackTop, setShowBackTop] = useState(false)  // 回到顶部按钮显示态
-
-  // 监听滚动,超过 300px 显示回到顶部按钮
-  useEffect(() => {
-    const handleScroll = () => setShowBackTop(window.scrollY > 300)
-    window.addEventListener('scroll', handleScroll, { passive: true })
-    return () => window.removeEventListener('scroll', handleScroll)
-  }, [])
-
-  const scrollToTop = () => window.scrollTo({ top: 0, behavior: 'smooth' })
-
   const load = useCallback(async (code?: string) => {
     setLoading(true)
     setError(null)
@@ -134,7 +124,7 @@ export default function StandingsPage() {
       </div>
 
       {error && (
-        <div className="border border-rose-300 bg-rose-50 px-4 py-3 text-sm text-rose-700">
+        <div className="border border-bad-300 bg-bad-50 px-4 py-3 text-sm text-bad-700">
           {error}
         </div>
       )}
@@ -202,7 +192,7 @@ export default function StandingsPage() {
                     <td className="text-center py-2 text-ink-500">{r.drawn}</td>
                     <td className="text-center py-2 text-ink-500">{r.lost}</td>
                     <td className="text-center py-2 text-ink-500">{r.goals_for}/{r.goals_against}</td>
-                    <td className={`text-center py-2 ${r.goal_diff > 0 ? 'text-emerald-600' : r.goal_diff < 0 ? 'text-rose-600' : 'text-ink-500'}`}>
+                    <td className={`text-center py-2 ${r.goal_diff > 0 ? 'text-ok-600' : r.goal_diff < 0 ? 'text-bad-600' : 'text-ink-500'}`}>
                       {r.goal_diff > 0 ? `+${r.goal_diff}` : r.goal_diff}
                     </td>
                     <td className="text-center py-2 font-bold text-ink-900">{r.points}</td>
@@ -221,18 +211,8 @@ export default function StandingsPage() {
         </div>
       )}
 
-      {/* 回到顶部按钮 */}
+      {/* 回到顶部(共享组件,方角纸片风) */}
-      <button
+      <BackTop />
-        onClick={scrollToTop}
-        className={`fixed bottom-6 right-6 z-40 flex h-10 w-10 items-center justify-center rounded-full border border-ink-200 bg-paper-50 text-ink-600 shadow-lg transition-all duration-300 hover:border-ink-400 hover:text-ink-900 ${
-          showBackTop ? 'translate-y-0 opacity-100' : 'translate-y-4 opacity-0 pointer-events-none'
-        }`}
-        aria-label="回到顶部"
-      >
-        <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
-          <path strokeLinecap="round" strokeLinejoin="round" d="M5 15l7-7 7 7" />
-        </svg>
-      </button>
     </div>
   )
 }

frontend/src/pages/matches/components/MatchPredictPanel.tsx

@@ -4,7 +4,7 @@
  * D3: 从 Matches.tsx 拆出,渲染逻辑原样搬迁。对外只导出 PredictModal;
  * PredictionPanel 复用 Prediction 的 embedded 模式由弹窗内渲染。
  */
-import { useEffect, useState } from 'react'
+import { useEffect, useRef, useState } from 'react'
 import TeamSideTag from '../../../components/TeamSideTag'
 import type { Match, Prediction } from '../types'
 import { AGENT_LABELS } from '../types'
@@ -82,7 +82,7 @@ function PredictionPanel({
         {!degraded && <OutcomePanel prediction={prediction} match={match} />}
 
         <p className="text-center text-2xs text-ink-500">
-          `多专家模式 · ${okReports.length}/${reports.length} 路有效`
+          {`多专家模式 · ${okReports.length}/${reports.length} 路有效`}
           {prediction.prompt_version && ` · prompt ${prediction.prompt_version}`}
         </p>
 
@@ -161,7 +161,8 @@ function PredictProgress() {
         </ul>
 
       <p className="mt-6 text-center text-2xs text-ink-400">
-        五路专家并行分析后终裁,约需 30-90 秒;多专家调用消耗较多 token,请按需使用。关闭窗口即取消
+        五路专家并行分析后终裁,约需 30-90 秒;多专家调用消耗较多 token,请按需使用。
+        关闭窗口将停止进度显示,后台任务可能仍在执行并消耗额度。
       </p>
       <p className="mt-1 text-center text-2xs text-ink-300">
         提示:每分钟限 10 次预测,耗尽后需等待下一分钟。
@@ -185,17 +186,52 @@ export function PredictModal({
   const homeName = match.home_team_zh || match.home_team
   const awayName = match.away_team_zh || match.away_team
 
+  // ── 无障碍与滚动锁定 ──
+  const panelRef = useRef<HTMLDivElement>(null)
+  const previouslyFocused = useRef<HTMLElement | null>(null)
+
   useEffect(() => {
+    previouslyFocused.current = document.activeElement as HTMLElement | null
+    // 初始聚焦弹窗容器,键盘用户可直接 Tab 进入内部控件
+    panelRef.current?.focus()
+
     const h = (e: KeyboardEvent) => {
-      if (e.key === 'Escape') onClose()
+      if (e.key === 'Escape') {
+        onClose()
+        return
+      }
+      if (e.key === 'Tab') {
+        // 简易焦点陷阱:Tab 循环限制在弹窗内,不会跑到遮罩背后的页面
+        const focusables = panelRef.current?.querySelectorAll<HTMLElement>(
+          'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])',
+        )
+        if (!focusables || focusables.length === 0) return
+        const first = focusables[0]
+        const last = focusables[focusables.length - 1]
+        if (e.shiftKey && document.activeElement === first) {
+          e.preventDefault()
+          last.focus()
+        } else if (!e.shiftKey && document.activeElement === last) {
+          e.preventDefault()
+          first.focus()
+        }
+      }
     }
     document.addEventListener('keydown', h)
-    return () => document.removeEventListener('keydown', h)
+    // 锁定背景滚动:弹窗内滚到底继续滚时,不再带动底层页面
+    const prevOverflow = document.body.style.overflow
+    document.body.style.overflow = 'hidden'
+    return () => {
+      document.removeEventListener('keydown', h)
+      document.body.style.overflow = prevOverflow
+      // 关闭后把焦点还给触发元素
+      previouslyFocused.current?.focus()
+    }
   }, [onClose])
 
   return (
     <div
-      className="fixed inset-0 z-50 flex items-start justify-center overflow-y-auto bg-ink-900/50 p-4 sm:items-center"
+      className="modal-overlay-enter fixed inset-0 z-50 flex items-start justify-center overflow-y-auto bg-ink-900/50 p-4 sm:items-center"
       role="dialog"
       aria-modal="true"
       aria-label={`预测 ${homeName} 对 ${awayName}`}
@@ -203,7 +239,11 @@ export function PredictModal({
         if (e.target === e.currentTarget) onClose()
       }}
     >
-      <div className="relative flex max-h-[92vh] w-full max-w-2xl flex-col overflow-hidden bg-paper-50 shadow-2xl">
+      <div
+        ref={panelRef}
+        tabIndex={-1}
+        className="modal-panel-enter relative flex max-h-[92vh] w-full max-w-2xl flex-col overflow-hidden bg-paper-50 outline-none"
+      >
         {/* 弹窗报头 */}
         <div className="flex flex-shrink-0 items-center justify-between border-b border-ink-900 bg-paper-100 px-4 py-2.5 sm:px-5">
           <h3 className="flex flex-wrap items-center gap-1.5 font-serif text-sm font-bold text-ink-900">

frontend/tailwind.config.js

@@ -24,12 +24,39 @@ export default {
           800: '#282420',
           900: '#17140F',
         },
-        // 印报红:全站唯一强调色,克制使用
+      // 印报红:全站唯一强调色,克制使用
-        press: {
+      press: {
-          DEFAULT: '#9E1B1B',
+        DEFAULT: '#9E1B1B',
-          dark: '#7C1414',
+        dark: '#7C1414',
-          wash: '#F7E9E4',
+        wash: '#F7E9E4',
-        },
+      },
+      // ── 语义状态色:成功/警告/负面 ──
+      // 设计约束:纸底 #FDFCF8 上文字级(600/700)对比度 ≥ 4.5:1(WCAG AA),
+      // 点/条级(500) ≥ 3:1;色相降饱和以贴近墨色印刷感,不使用 tailwind 原色。
+      ok: {
+        50: '#EAF3ED',
+        100: '#D5E8DC',
+        300: '#A3C9B1',
+        500: '#43925F',
+        600: '#2E7A4C',
+        700: '#1F6B45',
+      },
+      warn: {
+        50: '#FBF3E4',
+        100: '#F5E5C8',
+        300: '#E2C48E',
+        500: '#D97706',
+        600: '#A15C0B',
+        700: '#8F5109',
+      },
+      bad: {
+        50: '#FAEDED',
+        100: '#F6E3E3',
+        300: '#E4AFAF',
+        500: '#C24A4A',
+        600: '#A83B3B',
+        700: '#8F3030',
+      },
       },
       fontFamily: {
         // 毛体草书(国内 CDN)+ 粗楷体回退

src/api/app.py

@@ -124,8 +124,8 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 
 
 def create_app() -> FastAPI:
-    from src.core.log_buffer import setup_memory_logging
+    from src.core.log_buffer import setup_logging
-    setup_memory_logging(settings.LOG_LEVEL)
+    setup_logging(settings.LOG_LEVEL, settings.LOG_FILE)
 
     # 生产环境不暴露 OpenAPI 文档(避免向访客泄露接口结构)
     openapi_url = "/openapi.json" if settings.APP_ENV != "production" else None

src/core/config.py

@@ -11,6 +11,10 @@ class Settings(BaseSettings):
     # --- app ---
     APP_ENV: str = "development"
     LOG_LEVEL: str = "INFO"
+    # 日志持久化:空(默认)只输出 stdout + Admin 内存日志页(重启清零)。
+    # 填文件路径(如 /app/logs/app.log)后额外写入滚动文件(单文件 10MB × 5 份),
+    # 进程/容器重启不丢。容器部署需配合 volume 挂载该目录,否则重建仍会丢。
+    LOG_FILE: str = ""
     # P3-3:多 worker 时应用内限流与 KeyRing 各自独立计数(配额放大 N 倍)。
     # 设为 True 时若以多 worker 启动 uvicorn 则拒绝启动,避免静默配额漂移。
     # 仅在你已前置 Nginx/网关做全局限流、确认不需要此守护时留空/False。

src/core/log_buffer.py

@@ -65,14 +65,54 @@ def get_entries(
     return out
 
 
-def setup_memory_logging(level: str = "INFO") -> None:
+def setup_logging(level: str = "INFO", log_file: str = "") -> None:
-    """挂载内存 handler 到 root logger(幂等),并确保 root 级别不低于 INFO。"""
+    """配置应用日志:stdout(容器收集) + 内存环形缓冲(Admin 日志页) + 可选滚动文件(持久化)。
+
+    幂等:重复调用不会重复挂 handler(文件 handler 按 abspath 判重,相对/绝对
+    路径指向同一文件视为同一个)。文件写入基础设施失败只记 warning,绝不
+    影响启动与业务 —— 与 _safe_write_ingest_failure 同级约束:可观测性
+    基础设施不许拖垮主流程。
+    """
+    import os
+    from logging.handlers import RotatingFileHandler
+
     root = logging.getLogger()
-    if any(isinstance(h, MemoryLogHandler) for h in root.handlers):
-        return
-    handler = MemoryLogHandler()
-    handler.setLevel(logging.INFO)
-    handler.addFilter(_SQLNoiseFilter())
-    root.addHandler(handler)
     if root.level == logging.NOTSET or root.level > logging.INFO:
         root.setLevel(getattr(logging, level.upper(), logging.INFO))
+
+    if not any(isinstance(h, MemoryLogHandler) for h in root.handlers):
+        handler = MemoryLogHandler()
+        handler.setLevel(logging.INFO)
+        handler.addFilter(_SQLNoiseFilter())
+        root.addHandler(handler)
+
+    if not log_file:
+        return
+
+    # 滚动上限:单文件 10MB × 当前+5 份 ≈ 60MB,足够回溯数周的关键事件,
+    # 又不会吃满磁盘。格式含时间/级别/logger 名,便于事后 grep 排查。
+    target = os.path.abspath(log_file)
+    if any(
+        isinstance(h, RotatingFileHandler) and getattr(h, "baseFilename", None) == target
+        for h in root.handlers
+    ):
+        return
+    try:
+        os.makedirs(os.path.dirname(target), exist_ok=True)
+        file_handler = RotatingFileHandler(
+            target,
+            maxBytes=10 * 1024 * 1024,
+            backupCount=5,
+            encoding="utf-8",
+        )
+        file_handler.setFormatter(
+            logging.Formatter("%(asctime)s %(levelname)s %(name)s %(message)s")
+        )
+        file_handler.setLevel(logging.INFO)
+        file_handler.addFilter(_SQLNoiseFilter())
+        root.addHandler(file_handler)
+        logging.getLogger(__name__).info("文件日志已启用: %s", log_file)
+    except Exception:
+        logging.getLogger(__name__).warning(
+            "启用文件日志失败(%s),仅保留 stdout/内存日志", log_file, exc_info=True,
+        )

tests/test_log_persistence.py

@@ -0,0 +1,127 @@
+"""日志持久化(LOG_FILE)测试:setup_logging 启用滚动文件后日志必须落盘。
+
+背景: 此前应用日志只进 stdout(docker json-file 收集,不可控) + Admin 内存
+日志页(环形缓冲 2000 条,进程重启清零),没有任何应用层持久化 —— 排查
+「昨晚采集为什么失败」这类问题时无据可查。本测试守护:
+  1. 传 log_file → root logger 挂 RotatingFileHandler,日志写入文件
+  2. 幂等:重复调用不重复挂 handler
+  3. log_file 为空 → 不挂文件 handler(保持旧行为)
+  4. 目录不存在 → 自动创建
+  5. 文件打开失败(如路径是已存在的目录) → 只降级不炸,stdout/内存日志仍在
+
+范式: 直接操作 root logger + tmp_path;fixture 保存/恢复 root 状态,
+并关闭新增 handler 的文件句柄(Windows 上句柄不关会锁住 tmp 目录)。
+"""
+from __future__ import annotations
+
+import logging
+from logging.handlers import RotatingFileHandler
+
+import pytest
+
+from src.core.log_buffer import MemoryLogHandler, setup_logging
+
+
+@pytest.fixture(autouse=True)
+def _restore_root_logger():
+    """保存/恢复 root logger;关闭测试期间新挂 handler 的句柄。"""
+    root = logging.getLogger()
+    saved_handlers = list(root.handlers)
+    saved_level = root.level
+    yield
+    for h in root.handlers:
+        if h not in saved_handlers and hasattr(h, "close"):
+            try:
+                h.close()
+            except Exception:
+                pass
+    root.handlers[:] = saved_handlers
+    root.setLevel(saved_level)
+
+
+def _file_handlers():
+    return [h for h in logging.getLogger().handlers if isinstance(h, RotatingFileHandler)]
+
+
+def _memory_handlers():
+    return [h for h in logging.getLogger().handlers if isinstance(h, MemoryLogHandler)]
+
+
+class TestFileHandlerAttached:
+    def test_attaches_rotating_file_handler(self, tmp_path):
+        log_file = tmp_path / "app.log"
+
+        setup_logging("INFO", str(log_file))
+
+        fhs = _file_handlers()
+        assert len(fhs) == 1
+        assert fhs[0].baseFilename == str(log_file)
+        # 内存日志页照常工作,两者并存
+        assert len(_memory_handlers()) == 1
+        # 滚动参数与文档口径一致: 单文件 10MB × 5 份
+        assert fhs[0].maxBytes == 10 * 1024 * 1024
+        assert fhs[0].backupCount == 5
+
+    def test_log_written_to_file(self, tmp_path):
+        log_file = tmp_path / "app.log"
+        setup_logging("INFO", str(log_file))
+
+        logging.getLogger("persist-test").info("hello-persist-12345")
+
+        content = log_file.read_text(encoding="utf-8")
+        assert "hello-persist-12345" in content
+        assert "persist-test" in content          # logger 名可追溯
+        assert "INFO" in content                   # 级别在行首可过滤
+
+
+class TestIdempotent:
+    def test_repeated_call_does_not_duplicate_handlers(self, tmp_path):
+        log_file = tmp_path / "app.log"
+
+        setup_logging("INFO", str(log_file))
+        setup_logging("INFO", str(log_file))
+        setup_logging("INFO", str(log_file))
+
+        assert len(_file_handlers()) == 1
+        assert len(_memory_handlers()) == 1
+
+    def test_same_file_via_relative_and_absolute_path_counts_as_one(self, tmp_path, monkeypatch):
+        """相对/绝对路径指向同一文件时不得重复挂(幂等按 abspath 判重)。"""
+        monkeypatch.chdir(tmp_path)
+
+        setup_logging("INFO", "app.log")
+        setup_logging("INFO", str(tmp_path / "app.log"))
+
+        assert len(_file_handlers()) == 1
+
+
+class TestDisabled:
+    def test_empty_log_file_keeps_old_behavior(self):
+        setup_logging("INFO", "")
+
+        assert _file_handlers() == []
+        assert len(_memory_handlers()) == 1
+
+
+class TestAutoMkdir:
+    def test_creates_missing_directories(self, tmp_path):
+        log_file = tmp_path / "deep" / "nested" / "app.log"
+
+        setup_logging("INFO", str(log_file))
+
+        assert len(_file_handlers()) == 1
+        assert log_file.parent.is_dir()
+
+
+class TestGracefulDegradation:
+    def test_unopenable_path_degrades_without_raising(self, tmp_path):
+        """路径是已存在的目录 → 打开必然失败;只降级,不炸启动。"""
+        dir_as_file = tmp_path / "occupied"
+        dir_as_file.mkdir()
+
+        # 不应抛异常(文件日志是可观测性基础设施,失败只 warning)
+        setup_logging("INFO", str(dir_as_file))
+
+        assert _file_handlers() == []
+        # 降级后 stdout/内存日志路径仍在
+        assert len(_memory_handlers()) == 1