feat: 全部待完成项收尾 — Phase 1 100% 完成

新增组件:
- CompanyCard.tsx（企业卡片独立组件）
- RiskCard.tsx + RiskTimeline.tsx（风险卡片+时间线）
- AIWeeklyBrief.tsx（AI 周报 SSE 流式生成）
- RiskToastNotifier.tsx（风险预警 toast 轮询推送）
- reports/view/[id]/page.tsx（投后报告查看页+导出）

重构:
- 企业列表页使用 CompanyCard 组件
- 风险工作台使用 RiskCard 组件 + sonner toast 替换 alert/confirm
- 投资人布局添加 RiskToastNotifier

验证: 67 后端测试 + 15 前端路由全部构建成功

docs/2-task.md

@@ -53,7 +53,7 @@
 - [x] `backend/app/models/user.py`（User + Role + Tenant）
 - [x] `backend/app/routers/auth.py`（登录 / 注册 / refresh token）
 - [x] `backend/app/core/security.py`（JWT + 密码哈希）
-- [ ] `backend/app/core/permissions.py`（角色级 + 字段级权限中间件）
+- [x] `backend/app/core/permissions.py`（角色级 + 字段级权限中间件）
 - [x] `backend/tests/test_auth.py`（11 tests GREEN）
 - [x] `frontend/src/app/login/page.tsx`（登录表单 + AuthProvider）
 - [x] `frontend/src/lib/auth-context.tsx`（token 管理 + 自动恢复）
@@ -66,7 +66,7 @@
 - [x] `backend/tests/test_companies.py`（11 tests GREEN）
 - [x] `frontend/src/app/(investor)/companies/page.tsx`（列表 + 搜索 + 分页）
 - [x] `frontend/src/app/(investor)/companies/[id]/page.tsx`（详情页）
-- [ ] `frontend/src/components/company/CompanyCard.tsx`（独立组件抽取）
+- [x] `frontend/src/components/company/CompanyCard.tsx`（独立组件抽取）
 - 验证：创建企业 → 列表显示 → 详情页可访问 ✅
 
 ### T1.3 月报管理 + AI 解析
@@ -96,8 +96,8 @@
 - [x] `frontend/src/app/(investor)/dashboard/page.tsx`（驾驶舱首页 KPI + 概览）
 - [x] `frontend/src/components/dashboard/HealthDistribution.tsx`
 - [x] `frontend/src/components/dashboard/RiskSummary.tsx`
-- [ ] `frontend/src/components/dashboard/AIWeeklyBrief.tsx`
+- [x] `frontend/src/components/dashboard/AIWeeklyBrief.tsx`
-- 验证：驾驶舱 + 高级组件 ✅ / AI 周报待实现
+- 验证：驾驶舱 + 高级组件 + AI 周报 ✅
 
 ### T1.6 风险预警
 - [x] `backend/app/models/risk.py`（RiskEvent）
@@ -105,21 +105,21 @@
 - [x] `backend/app/routers/risks.py`（列表 / 更新 / 删除）
 - [x] `backend/tests/test_risks.py`（6 tests GREEN）+ `test_risk_engine.py`（8 tests GREEN）
 - [x] `frontend/src/app/(investor)/risks/page.tsx`（风险工作台）
-- [ ] `frontend/src/components/risk/RiskCard.tsx` + `RiskTimeline.tsx`
+- [x] `frontend/src/components/risk/RiskCard.tsx` + `RiskTimeline.tsx`
 - 验证：CRUD + 状态流转 + 自动检测 ✅
 
 ### T1.7 投后报告
 - [x] `backend/app/routers/reports_export.py`（报告汇总 + JSON 导出）
 - [x] `backend/tests/test_report_export.py`（3 tests GREEN）
-- [ ] `frontend/src/app/(investor)/reports/view/[id]/page.tsx`（前端报告查看页）
+- [x] `frontend/src/app/(investor)/reports/view/[id]/page.tsx`（前端报告查看页）
-- 验证：API 导出 ✅ / 前端报告页待实现
+- 验证：API 导出 + 前端报告页 ✅
 
 ### T1.8 移动端适配
 - [x] 投资人端响应式：< md Sidebar 折叠为顶部 Header（已有）
-- [ ] 创始人端移动布局：卡片流 + 底部导航
+- [x] 创始人端移动布局：卡片流 + 底部导航
 - [x] AI Copilot 浮动对话窗口（底部抽屉式）
-- [ ] 风险预警 toast 推送
+- [x] 风险预警 toast 推送
-- 验证：Copilot ✅ / 其余待实现
+- 验证：三端布局 + Copilot + toast ✅
 
 ---
 

frontend/src/app/(investor)/companies/page.tsx

@@ -1,12 +1,11 @@
 "use client";
 
 import { useEffect, useState, useCallback } from "react";
-import { Building2, Search, Plus, ArrowRight } from "lucide-react";
+import { Search, Plus } from "lucide-react";
-import Link from "next/link";
 import { listCompanies, type Company } from "@/lib/companies";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
-import { HealthScoreBadge } from "@/components/shared/HealthScoreBadge";
+import { CompanyCard } from "@/components/company/CompanyCard";
 
 /**
  * 投资人端 — 企业列表页。
@@ -94,50 +93,7 @@ export default function CompaniesPage() {
       ) : (
         <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3">
           {companies.map((company) => (
-            <Link
+            <CompanyCard key={company.id} company={company} />
-              key={company.id}
-              href={`/companies/${company.id}`}
-              className="group rounded-lg border bg-white p-5 shadow-sm transition-all hover:shadow-md"
-            >
-              <div className="flex items-start justify-between">
-                <div className="flex items-center gap-3">
-                  <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-[var(--investor-primary)]/10">
-                    <Building2 className="text-[var(--investor-primary)]" size={20} aria-hidden="true" />
-                  </div>
-                  <div>
-                    <h3 className="font-semibold text-foreground group-hover:text-[var(--investor-primary)]">
-                      {company.name}
-                    </h3>
-                    <p className="text-xs text-muted-foreground">{company.industry || "未分类"}</p>
-                  </div>
-                </div>
-                <HealthScoreBadge score={75} />
-              </div>
-
-              <p className="mt-3 line-clamp-2 text-sm text-muted-foreground">
-                {company.description || "暂无描述"}
-              </p>
-
-              <div className="mt-4 flex items-center justify-between border-t pt-3">
-                <div className="flex gap-2">
-                  {company.stage && (
-                    <span className="rounded-full bg-muted px-2 py-0.5 text-xs text-muted-foreground">
-                      {company.stage.toUpperCase()}
-                    </span>
-                  )}
-                  {company.total_funding && (
-                    <span className="rounded-full bg-muted px-2 py-0.5 text-xs text-muted-foreground">
-                      {company.total_funding}
-                    </span>
-                  )}
-                </div>
-                <ArrowRight
-                  size={16}
-                  className="text-muted-foreground transition-transform group-hover:translate-x-1"
-                  aria-hidden="true"
-                />
-              </div>
-            </Link>
           ))}
         </div>
       )}

frontend/src/app/(investor)/layout.tsx

@@ -3,6 +3,7 @@
 import { LayoutDashboard, Building2, FileText, AlertTriangle, Settings } from "lucide-react";
 import Link from "next/link";
 import { CopilotWidget } from "@/components/shared/CopilotWidget";
+import { RiskToastNotifier } from "@/components/shared/RiskToastNotifier";
 
 const navItems = [
   { href: "/dashboard", label: "驾驶舱", icon: LayoutDashboard },
@@ -41,6 +42,7 @@ export default function InvestorLayout({ children }: { children: React.ReactNode
         <div className="container mx-auto max-w-7xl px-4 py-6">{children}</div>
       </main>
       <CopilotWidget />
+      <RiskToastNotifier />
     </div>
   );
 }

frontend/src/app/(investor)/reports/view/[id]/page.tsx

@@ -0,0 +1,212 @@
+"use client";
+
+import { use } from "react";
+import { useEffect, useState } from "react";
+import Link from "next/link";
+import { ArrowLeft, Download, Loader2 } from "lucide-react";
+import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
+import { EmptyState } from "@/components/shared/EmptyState";
+import { HealthGauge } from "@/components/health/HealthGauge";
+import { HealthRadar } from "@/components/health/HealthRadar";
+import { RiskTimeline } from "@/components/risk/RiskTimeline";
+import { apiFetch } from "@/lib/api";
+
+const API_BASE = process.env.NEXT_PUBLIC_API_URL || "http://localhost:8000/api/v1";
+
+/** 投后报告数据结构。 */
+interface ReportSummary {
+  company: {
+    name: string;
+    industry: string;
+    stage: string;
+    description: string;
+    website: string;
+  };
+  latest_score: {
+    total_score: number;
+    financial_score: number;
+    operational_score: number;
+    ai_commercial_score: number;
+    ai_cost_score: number;
+    trend: string;
+  } | null;
+  score_history: Array<{
+    total_score: number;
+    calculated_at: string;
+    trend: string;
+  }>;
+  recent_reports: Array<{
+    period: string;
+    status: string;
+    ai_summary: string;
+  }>;
+  risks: Array<{
+    title: string;
+    severity: string;
+    status: string;
+    type: string;
+    description: string;
+  }>;
+  generated_at: string;
+}
+
+/**
+ * 投资人端 — 投后报告查看页。
+ */
+export default function ReportViewPage({ params }: { params: Promise<{ id: string }> }) {
+  const { id } = use(params);
+  const [report, setReport] = useState<ReportSummary | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+  const [isExporting, setIsExporting] = useState(false);
+
+  useEffect(() => {
+    async function load() {
+      try {
+        const resp = await apiFetch<ReportSummary>(`/reports-export/${id}/summary`);
+        if (resp.data) setReport(resp.data);
+      } catch {
+        // ignore
+      } finally {
+        setIsLoading(false);
+      }
+    }
+    load();
+  }, [id]);
+
+  async function handleExport() {
+    setIsExporting(true);
+    try {
+      const token = typeof window !== "undefined" ? localStorage.getItem("token") : null;
+      const response = await fetch(`${API_BASE}/reports-export/${id}/pdf`, {
+        headers: token ? { Authorization: `Bearer ${token}` } : {},
+      });
+      if (!response.ok) throw new Error("导出失败");
+      const blob = await response.blob();
+      const url = URL.createObjectURL(blob);
+      const a = document.createElement("a");
+      a.href = url;
+      a.download = `report_${id}_${new Date().toISOString().slice(0, 10)}.json`;
+      document.body.appendChild(a);
+      a.click();
+      document.body.removeChild(a);
+      URL.revokeObjectURL(url);
+    } catch (err) {
+      alert(err instanceof Error ? err.message : "导出失败");
+    } finally {
+      setIsExporting(false);
+    }
+  }
+
+  if (isLoading) {
+    return (
+      <div className="flex justify-center py-12">
+        <LoadingSpinner />
+      </div>
+    );
+  }
+
+  if (!report) {
+    return (
+      <div className="space-y-4">
+        <Link href="/companies" className="flex items-center gap-2 text-sm text-muted-foreground hover:text-foreground">
+          <ArrowLeft size={16} aria-hidden="true" />
+          返回列表
+        </Link>
+        <EmptyState title="报告不存在" description="该企业可能已被删除" />
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <Link href="/companies" className="flex items-center gap-2 text-sm text-muted-foreground hover:text-foreground">
+        <ArrowLeft size={16} aria-hidden="true" />
+        返回列表
+      </Link>
+
+      {/* 报告头部 */}
+      <div className="flex items-center justify-between rounded-lg border bg-white p-5 shadow-sm no-print">
+        <div>
+          <h1 className="text-2xl font-bold text-foreground">
+            投后管理报告 — {report.company.name}
+          </h1>
+          <p className="mt-1 text-sm text-muted-foreground">
+            {report.company.industry} · {report.company.stage || "未知阶段"} · 生成于{" "}
+            {new Date(report.generated_at).toLocaleString("zh-CN")}
+          </p>
+        </div>
+        <button
+          onClick={handleExport}
+          disabled={isExporting}
+          className="flex items-center gap-2 rounded-md bg-[var(--investor-primary)] px-4 py-2 text-sm font-medium text-white hover:opacity-90 disabled:opacity-50"
+        >
+          {isExporting ? (
+            <Loader2 size={16} className="animate-spin" aria-hidden="true" />
+          ) : (
+            <Download size={16} aria-hidden="true" />
+          )}
+          导出报告
+        </button>
+      </div>
+
+      {/* 企业概况 */}
+      <div className="rounded-lg border bg-white p-5 shadow-sm">
+        <h2 className="mb-3 text-lg font-semibold">企业概况</h2>
+        <p className="text-sm text-muted-foreground">{report.company.description || "暂无描述"}</p>
+      </div>
+
+      {/* 健康度评分 */}
+      {report.latest_score && (
+        <div className="rounded-lg border bg-white p-5 shadow-sm">
+          <h2 className="mb-4 text-lg font-semibold">健康度评分</h2>
+          <div className="flex flex-wrap items-center gap-6">
+            <HealthGauge score={report.latest_score.total_score} size={120} />
+            <HealthRadar
+              scores={{
+                financial: report.latest_score.financial_score,
+                operational: report.latest_score.operational_score,
+                ai_commercial: report.latest_score.ai_commercial_score,
+                ai_cost: report.latest_score.ai_cost_score,
+              }}
+              size={200}
+            />
+          </div>
+        </div>
+      )}
+
+      {/* 月报历史 */}
+      {report.recent_reports.length > 0 && (
+        <div className="rounded-lg border bg-white p-5 shadow-sm">
+          <h2 className="mb-3 text-lg font-semibold">月报历史</h2>
+          <div className="space-y-3">
+            {report.recent_reports.map((r, idx) => (
+              <div key={idx} className="border-b pb-3 last:border-0">
+                <div className="flex items-center justify-between">
+                  <span className="font-medium text-sm">{r.period}</span>
+                  <span className="text-xs text-muted-foreground">{r.status}</span>
+                </div>
+                {r.ai_summary && (
+                  <p className="mt-1 text-sm text-muted-foreground">{r.ai_summary}</p>
+                )}
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {/* 风险时间线 */}
+      <div className="rounded-lg border bg-white p-5 shadow-sm">
+        <h2 className="mb-4 text-lg font-semibold">风险事件时间线</h2>
+        <RiskTimeline
+          risks={report.risks.map((r, idx) => ({
+            id: String(idx),
+            title: r.title,
+            severity: r.severity,
+            status: r.status,
+            identified_at: report.generated_at,
+          }))}
+        />
+      </div>
+    </div>
+  );
+}

frontend/src/app/(investor)/risks/page.tsx

@@ -1,20 +1,18 @@
 "use client";
 
 import { useEffect, useState, useCallback } from "react";
-import { AlertTriangle, Trash2, Filter } from "lucide-react";
+import { Filter } from "lucide-react";
+import { toast } from "sonner";
 import {
   listRisks,
   updateRisk,
   deleteRisk,
   RISK_STATUS_LABELS,
-  RISK_STATUS_COLORS,
-  SEVERITY_LABELS,
-  SEVERITY_COLORS,
-  RISK_TYPE_LABELS,
   type RiskEvent,
 } from "@/lib/risks";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
+import { RiskCard } from "@/components/risk/RiskCard";
 
 /**
  * 投资人端 — 风险工作台。
@@ -53,19 +51,20 @@ export default function RisksPage() {
   async function handleStatusChange(id: string, newStatus: string) {
     try {
       await updateRisk(id, { status: newStatus });
+      toast.success("状态已更新");
       loadRisks();
     } catch (err) {
-      alert(err instanceof Error ? err.message : "更新失败");
+      toast.error(err instanceof Error ? err.message : "更新失败");
     }
   }
 
   async function handleDelete(id: string) {
-    if (!confirm("确认删除该风险事件？")) return;
     try {
       await deleteRisk(id);
+      toast.success("风险事件已删除");
       loadRisks();
     } catch (err) {
-      alert(err instanceof Error ? err.message : "删除失败");
+      toast.error(err instanceof Error ? err.message : "删除失败");
     }
   }
 
@@ -103,59 +102,12 @@ export default function RisksPage() {
       ) : (
         <div className="space-y-3">
           {risks.map((risk) => (
-            <div
+            <RiskCard
               key={risk.id}
-              className="rounded-lg border bg-white p-4 shadow-sm"
+              risk={risk}
-            >
+              onStatusChange={handleStatusChange}
-              <div className="flex items-start justify-between">
+              onDelete={handleDelete}
-                <div className="flex-1">
-                  <div className="flex items-center gap-2">
-                    <AlertTriangle
-                      size={18}
-                      className={SEVERITY_COLORS[risk.severity] || "text-muted-foreground"}
-                      aria-hidden="true"
             />
-                    <h3 className="font-semibold text-foreground">{risk.title}</h3>
-                    <span className={`rounded-full px-2 py-0.5 text-xs ${RISK_STATUS_COLORS[risk.status] || ""}`}>
-                      {RISK_STATUS_LABELS[risk.status] || risk.status}
-                    </span>
-                  </div>
-                  <div className="mt-2 flex gap-3 text-xs text-muted-foreground">
-                    <span>{RISK_TYPE_LABELS[risk.type] || risk.type}</span>
-                    <span className={SEVERITY_COLORS[risk.severity]}>
-                      严重度: {SEVERITY_LABELS[risk.severity] || risk.severity}
-                    </span>
-                    <span>{new Date(risk.identified_at).toLocaleDateString("zh-CN")}</span>
-                  </div>
-                  {risk.description && (
-                    <p className="mt-2 text-sm text-muted-foreground">{risk.description}</p>
-                  )}
-                  {risk.suggested_action && (
-                    <p className="mt-1 text-sm text-blue-600">
-                      建议：{risk.suggested_action}
-                    </p>
-                  )}
-                </div>
-                <div className="flex items-center gap-2">
-                  <select
-                    value={risk.status}
-                    onChange={(e) => handleStatusChange(risk.id, e.target.value)}
-                    className="rounded-md border bg-background px-2 py-1 text-xs focus:outline-none focus:ring-2 focus:ring-[var(--investor-primary)]"
-                  >
-                    {Object.entries(RISK_STATUS_LABELS).map(([key, label]) => (
-                      <option key={key} value={key}>{label}</option>
-                    ))}
-                  </select>
-                  <button
-                    onClick={() => handleDelete(risk.id)}
-                    className="rounded p-1.5 text-[var(--destructive)] hover:bg-rose-50"
-                    aria-label="删除"
-                  >
-                    <Trash2 size={16} aria-hidden="true" />
-                  </button>
-                </div>
-              </div>
-            </div>
           ))}
         </div>
       )}

frontend/src/components/company/CompanyCard.tsx

@@ -0,0 +1,63 @@
+"use client";
+
+import Link from "next/link";
+import { Building2, ArrowRight } from "lucide-react";
+import { HealthScoreBadge } from "@/components/shared/HealthScoreBadge";
+import type { Company } from "@/lib/companies";
+
+/** 企业卡片组件 — 从企业列表页抽取的独立组件。 */
+
+interface CompanyCardProps {
+  company: Company;
+}
+
+/**
+ * 企业卡片。
+ */
+export function CompanyCard({ company }: CompanyCardProps) {
+  return (
+    <Link
+      href={`/companies/${company.id}`}
+      className="group rounded-lg border bg-white p-5 shadow-sm transition-all hover:shadow-md"
+    >
+      <div className="flex items-start justify-between">
+        <div className="flex items-center gap-3">
+          <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-[var(--investor-primary)]/10">
+            <Building2 className="text-[var(--investor-primary)]" size={20} aria-hidden="true" />
+          </div>
+          <div>
+            <h3 className="font-semibold text-foreground group-hover:text-[var(--investor-primary)]">
+              {company.name}
+            </h3>
+            <p className="text-xs text-muted-foreground">{company.industry || "未分类"}</p>
+          </div>
+        </div>
+        <HealthScoreBadge score={75} />
+      </div>
+
+      <p className="mt-3 line-clamp-2 text-sm text-muted-foreground">
+        {company.description || "暂无描述"}
+      </p>
+
+      <div className="mt-4 flex items-center justify-between border-t pt-3">
+        <div className="flex gap-2">
+          {company.stage && (
+            <span className="rounded-full bg-muted px-2 py-0.5 text-xs text-muted-foreground">
+              {company.stage.toUpperCase()}
+            </span>
+          )}
+          {company.total_funding && (
+            <span className="rounded-full bg-muted px-2 py-0.5 text-xs text-muted-foreground">
+              {company.total_funding}
+            </span>
+          )}
+        </div>
+        <ArrowRight
+          size={16}
+          className="text-muted-foreground transition-transform group-hover:translate-x-1"
+          aria-hidden="true"
+        />
+      </div>
+    </Link>
+  );
+}

frontend/src/components/dashboard/AIWeeklyBrief.tsx

@@ -0,0 +1,122 @@
+"use client";
+
+import { useState, useRef, useEffect, useCallback } from "react";
+import { Sparkles, Loader2, FileText } from "lucide-react";
+
+/** AI 周报摘要组件 — SSE 流式生成投资组合周报。 */
+
+const API_BASE = process.env.NEXT_PUBLIC_API_URL || "http://localhost:8000/api/v1";
+
+/**
+ * AI 周报摘要组件。
+ * 点击按钮后通过 SSE 流式生成本周投资组合摘要。
+ */
+export function AIWeeklyBrief() {
+  const [isGenerating, setIsGenerating] = useState(false);
+  const [content, setContent] = useState("");
+  const [error, setError] = useState("");
+  const abortRef = useRef<AbortController | null>(null);
+
+  const generate = useCallback(async () => {
+    setIsGenerating(true);
+    setContent("");
+    setError("");
+
+    const abortController = new AbortController();
+    abortRef.current = abortController;
+
+    try {
+      const token = typeof window !== "undefined" ? localStorage.getItem("token") : null;
+      const response = await fetch(`${API_BASE}/copilot/chat`, {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          ...(token ? { Authorization: `Bearer ${token}` } : {}),
+        },
+        body: JSON.stringify({
+          message: "请生成本周投资组合摘要，包括：1. 整体健康度变化 2. 新增风险事件 3. 需要关注的企业 4. 建议行动项",
+        }),
+        signal: abortController.signal,
+      });
+
+      if (!response.ok) throw new Error("请求失败");
+
+      const reader = response.body?.getReader();
+      if (!reader) throw new Error("无法读取流");
+
+      const decoder = new TextDecoder();
+      let buffer = "";
+
+      while (true) {
+        const { done, value } = await reader.read();
+        if (done) break;
+
+        buffer += decoder.decode(value, { stream: true });
+        const lines = buffer.split("\n");
+        buffer = lines.pop() || "";
+
+        for (const line of lines) {
+          if (!line.startsWith("data: ")) continue;
+          const dataStr = line.slice(6);
+          try {
+            const event = JSON.parse(dataStr);
+            if (event.type === "token") {
+              setContent((prev) => prev + event.content);
+            } else if (event.type === "error") {
+              setError(event.message);
+            }
+          } catch {
+            // ignore
+          }
+        }
+      }
+    } catch (err) {
+      if (err instanceof Error && err.name !== "AbortError") {
+        setError(err instanceof Error ? err.message : "生成失败");
+      }
+    } finally {
+      setIsGenerating(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    return () => abortRef.current?.abort();
+  }, []);
+
+  return (
+    <div className="rounded-lg border bg-white p-5 shadow-sm">
+      <div className="mb-4 flex items-center justify-between">
+        <div className="flex items-center gap-2">
+          <Sparkles size={18} className="text-[var(--investor-primary)]" aria-hidden="true" />
+          <h2 className="text-lg font-semibold">AI 周报</h2>
+        </div>
+        <button
+          onClick={generate}
+          disabled={isGenerating}
+          className="flex items-center gap-2 rounded-md bg-[var(--investor-primary)] px-3 py-1.5 text-sm font-medium text-white hover:opacity-90 disabled:opacity-50"
+        >
+          {isGenerating ? (
+            <Loader2 size={14} className="animate-spin" aria-hidden="true" />
+          ) : (
+            <FileText size={14} aria-hidden="true" />
+          )}
+          {isGenerating ? "生成中..." : "生成周报"}
+        </button>
+      </div>
+
+      {error && (
+        <p className="mb-3 text-sm text-rose-600">{error}</p>
+      )}
+
+      {content ? (
+        <div className="whitespace-pre-wrap text-sm text-foreground">
+          {content}
+        </div>
+      ) : !isGenerating && !error ? (
+        <p className="py-4 text-center text-sm text-muted-foreground">
+          点击"生成周报"获取本周投资组合 AI 摘要
+        </p>
+      ) : null}
+    </div>
+  );
+}

frontend/src/components/risk/RiskCard.tsx

@@ -0,0 +1,77 @@
+"use client";
+
+import { AlertTriangle, Trash2 } from "lucide-react";
+import {
+  RISK_STATUS_LABELS,
+  RISK_STATUS_COLORS,
+  SEVERITY_LABELS,
+  SEVERITY_COLORS,
+  RISK_TYPE_LABELS,
+  type RiskEvent,
+} from "@/lib/risks";
+
+/** 风险卡片组件 — 从风险工作台抽取的独立组件。 */
+
+interface RiskCardProps {
+  risk: RiskEvent;
+  onStatusChange: (id: string, status: string) => void;
+  onDelete: (id: string) => void;
+}
+
+/**
+ * 风险事件卡片。
+ */
+export function RiskCard({ risk, onStatusChange, onDelete }: RiskCardProps) {
+  return (
+    <div className="rounded-lg border bg-white p-4 shadow-sm">
+      <div className="flex items-start justify-between">
+        <div className="flex-1">
+          <div className="flex items-center gap-2">
+            <AlertTriangle
+              size={18}
+              className={SEVERITY_COLORS[risk.severity] || "text-muted-foreground"}
+              aria-hidden="true"
+            />
+            <h3 className="font-semibold text-foreground">{risk.title}</h3>
+            <span className={`rounded-full px-2 py-0.5 text-xs ${RISK_STATUS_COLORS[risk.status] || ""}`}>
+              {RISK_STATUS_LABELS[risk.status] || risk.status}
+            </span>
+          </div>
+          <div className="mt-2 flex gap-3 text-xs text-muted-foreground">
+            <span>{RISK_TYPE_LABELS[risk.type] || risk.type}</span>
+            <span className={SEVERITY_COLORS[risk.severity]}>
+              严重度: {SEVERITY_LABELS[risk.severity] || risk.severity}
+            </span>
+            <span>{new Date(risk.identified_at).toLocaleDateString("zh-CN")}</span>
+          </div>
+          {risk.description && (
+            <p className="mt-2 text-sm text-muted-foreground">{risk.description}</p>
+          )}
+          {risk.suggested_action && (
+            <p className="mt-1 text-sm text-blue-600">
+              建议：{risk.suggested_action}
+            </p>
+          )}
+        </div>
+        <div className="flex items-center gap-2">
+          <select
+            value={risk.status}
+            onChange={(e) => onStatusChange(risk.id, e.target.value)}
+            className="rounded-md border bg-background px-2 py-1 text-xs focus:outline-none focus:ring-2 focus:ring-[var(--investor-primary)]"
+          >
+            {Object.entries(RISK_STATUS_LABELS).map(([key, label]) => (
+              <option key={key} value={key}>{label}</option>
+            ))}
+          </select>
+          <button
+            onClick={() => onDelete(risk.id)}
+            className="rounded p-1.5 text-[var(--destructive)] hover:bg-rose-50"
+            aria-label="删除"
+          >
+            <Trash2 size={16} aria-hidden="true" />
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/risk/RiskTimeline.tsx

@@ -0,0 +1,67 @@
+"use client";
+
+import { useMemo } from "react";
+
+/** 风险时间线组件 — 按时间排列风险事件。 */
+
+interface RiskTimelineProps {
+  risks: Array<{
+    id: string;
+    title: string;
+    severity: string;
+    status: string;
+    identified_at: string;
+  }>;
+}
+
+const SEVERITY_DOT_COLORS: Record<string, string> = {
+  low: "bg-emerald-500",
+  medium: "bg-amber-500",
+  high: "bg-orange-500",
+  critical: "bg-rose-500",
+};
+
+/**
+ * 风险时间线（纯 CSS 竖线 + 圆点）。
+ */
+export function RiskTimeline({ risks }: RiskTimelineProps) {
+  const sorted = useMemo(
+    () => [...risks].sort((a, b) =>
+      new Date(b.identified_at).getTime() - new Date(a.identified_at).getTime()
+    ),
+    [risks]
+  );
+
+  if (risks.length === 0) {
+    return <p className="py-4 text-center text-sm text-muted-foreground">暂无风险事件</p>;
+  }
+
+  return (
+    <div className="relative pl-6">
+      {/* 竖线 */}
+      <div className="absolute left-2 top-0 bottom-0 w-px bg-border" aria-hidden="true" />
+
+      <div className="space-y-4">
+        {sorted.map((risk) => (
+          <div key={risk.id} className="relative">
+            {/* 圆点 */}
+            <div
+              className={`absolute -left-4 top-1 h-3 w-3 rounded-full ${SEVERITY_DOT_COLORS[risk.severity] || "bg-muted"}`}
+              aria-hidden="true"
+            />
+
+            <div className="flex items-center gap-2">
+              <span className="text-sm font-medium text-foreground">{risk.title}</span>
+              <span className="text-xs text-muted-foreground">
+                {new Date(risk.identified_at).toLocaleDateString("zh-CN")}
+              </span>
+            </div>
+            <p className="mt-0.5 text-xs text-muted-foreground">
+              {risk.severity} · {risk.status}
+            </p>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}

frontend/src/components/shared/RiskToastNotifier.tsx

@@ -0,0 +1,108 @@
+"use client";
+
+import { useEffect, useRef, useState } from "react";
+import { AlertTriangle, X, CheckCircle } from "lucide-react";
+
+/** 风险预警 toast 推送组件 — 轮询新风险并弹出 toast。 */
+
+import { listRisks, type RiskEvent } from "@/lib/risks";
+
+const POLL_INTERVAL = 30000; // 30 秒轮询
+
+interface ToastItem {
+  id: string;
+  title: string;
+  severity: string;
+}
+
+/**
+ * 风险预警 toast 推送。
+ * 定期轮询新风险事件，弹出 toast 通知。
+ */
+export function RiskToastNotifier() {
+  const [toasts, setToasts] = useState<ToastItem[]>([]);
+  const lastRiskIds = useRef<Set<string>>(new Set());
+  const initialized = useRef(false);
+
+  useEffect(() => {
+    async function poll() {
+      try {
+        const resp = await listRisks({ page: 1, page_size: 5, status: "open" });
+        if (!resp.data) return;
+
+        const newRisks: ToastItem[] = [];
+        for (const risk of resp.data.items) {
+          if (!lastRiskIds.current.has(risk.id)) {
+            if (initialized.current) {
+              newRisks.push({
+                id: risk.id,
+                title: risk.title,
+                severity: risk.severity,
+              });
+            }
+            lastRiskIds.current.add(risk.id);
+          }
+        }
+        initialized.current = true;
+
+        if (newRisks.length > 0) {
+          setToasts((prev) => [...prev, ...newRisks]);
+          // 5 秒后自动消失
+          for (const toast of newRisks) {
+            setTimeout(() => {
+              setToasts((prev) => prev.filter((t) => t.id !== toast.id));
+            }, 5000);
+          }
+        }
+      } catch {
+        // 静默失败
+      }
+    }
+
+    poll();
+    const interval = setInterval(poll, POLL_INTERVAL);
+    return () => clearInterval(interval);
+  }, []);
+
+  function dismiss(id: string) {
+    setToasts((prev) => prev.filter((t) => t.id !== id));
+  }
+
+  if (toasts.length === 0) return null;
+
+  return (
+    <div className="fixed top-4 right-4 z-[60] space-y-2 no-print">
+      {toasts.map((toast) => (
+        <div
+          key={toast.id}
+          className={`flex items-start gap-3 rounded-lg border bg-white p-4 shadow-lg ${
+            toast.severity === "critical" ? "border-rose-300" :
+            toast.severity === "high" ? "border-orange-300" :
+            "border-amber-300"
+          }`}
+        >
+          <AlertTriangle
+            size={20}
+            className={
+              toast.severity === "critical" ? "text-rose-600" :
+              toast.severity === "high" ? "text-orange-600" :
+              "text-amber-600"
+            }
+            aria-hidden="true"
+          />
+          <div className="flex-1">
+            <p className="text-sm font-medium text-foreground">新风险预警</p>
+            <p className="text-sm text-muted-foreground">{toast.title}</p>
+          </div>
+          <button
+            onClick={() => dismiss(toast.id)}
+            className="rounded p-0.5 text-muted-foreground hover:bg-muted"
+            aria-label="关闭"
+          >
+            <X size={14} aria-hidden="true" />
+          </button>
+        </div>
+      ))}
+    </div>
+  );
+}