feat: AI事前预警 — 现金流预测+预警扩展+准确率+情景建议

backend/app/api/alert_rules.py

@@ -25,6 +25,7 @@ class AlertRule(Base):
     id = Column(Integer, primary_key=True, index=True)
     kpi_id = Column(Integer, nullable=False, comment="关联KPI ID")
     rule_type = Column(String(30), nullable=False, comment="static/dynamic/trend_up/trend_down")
+    trigger_on = Column(String(20), default="actual", comment="actual/forecast/both — 实际值/预测值/两者触发")
     enabled = Column(Integer, default=1, comment="1启用 0禁用")
     params = Column(JSON, nullable=True, comment="规则参数")
     # static: {"green": ">=90", "yellow": ">=80", "red": "<80"}
@@ -98,6 +99,7 @@ def create_alert_rule(data: dict, db: Session = Depends(get_db), user=Depends(re
     """创建预警规则"""
     kpi_id = data.get("kpi_id")
     rule_type = data.get("rule_type", "static")
+    trigger_on = data.get("trigger_on", "actual")
     
     kpi = db.query(KPIDefinition).filter(KPIDefinition.id == kpi_id).first()
     if not kpi:
@@ -108,6 +110,7 @@ def create_alert_rule(data: dict, db: Session = Depends(get_db), user=Depends(re
     rule = AlertRule(
         kpi_id=kpi_id,
         rule_type=rule_type,
+        trigger_on=trigger_on,
         enabled=data.get("enabled", 1),
         params=data.get("params"),
     )
@@ -132,7 +135,7 @@ def update_alert_rule(rule_id: int, data: dict, db: Session = Depends(get_db)):
     if not rule:
         raise HTTPException(404, "预警规则不存在")
     
-    for field in ("rule_type", "enabled", "params"):
+    for field in ("rule_type", "trigger_on", "enabled", "params"):
         if field in data:
             setattr(rule, field, data[field])
     db.commit()
@@ -477,3 +480,139 @@ def _eval_threshold(value: float, threshold_str: str, invert: bool = False) -> b
             return False
     except (ValueError, TypeError):
         return False
+
+
+# ============================================================
+# 预测值检查 + 情景建议
+# ============================================================
+
+def _check_forecast_alerts(db: Session) -> int:
+    """检查未来7天预测值是否超限 — 针对trigger_on='forecast'和'both'的规则"""
+    from app.utils.cash_forecast_engine import forecast_cash_flow, generate_scenario_suggestion
+    from app.models import CashForecast
+
+    rules = db.query(AlertRule).filter(
+        AlertRule.enabled == 1,
+        AlertRule.trigger_on.in_(["forecast", "both"]),
+    ).all()
+
+    if not rules:
+        return 0
+
+    alerts_generated = 0
+    rule_kpi_cache = {}
+
+    for rule in rules:
+        try:
+            kpi = rule_kpi_cache.get(rule.kpi_id)
+            if kpi is None:
+                kpi = db.query(KPIDefinition).filter(KPIDefinition.id == rule.kpi_id).first()
+                if kpi:
+                    rule_kpi_cache[rule.kpi_id] = kpi
+            if not kpi:
+                continue
+
+            entity_id = kpi.entity_id or 1
+            # 获取最新的预测
+            latest_forecasts = db.query(CashForecast).filter(
+                CashForecast.entity_id == entity_id,
+            ).order_by(CashForecast.forecast_date.asc()).limit(7).all()
+
+            if not latest_forecasts:
+                # 没有已有预测，执行一次实时预测
+                from app.utils.cash_forecast_engine import save_forecast_to_db
+                result = forecast_cash_flow(entity_id, db)
+                try:
+                    save_forecast_to_db(entity_id, result, db)
+                except:
+                    pass
+                latest_forecasts = db.query(CashForecast).filter(
+                    CashForecast.entity_id == entity_id,
+                ).order_by(CashForecast.forecast_date.asc()).limit(7).all()
+
+            if not latest_forecasts:
+                continue
+
+            # 检查预测值是否超限
+            params = rule.params or {}
+            params["kpi"] = kpi
+            for forecast in latest_forecasts:
+                value = forecast.predicted_cash
+                if value is None:
+                    continue
+                alert_level, alert_message = _check_static(value, params, kpi)
+                if alert_level and alert_level != "green":
+                    # 生成情景建议
+                    sug_type = "cash_critical" if alert_level == "red" else "cash_low"
+                    sug = generate_scenario_suggestion(
+                        sug_type, kpi.kpi_name,
+                        {"expected_receivables": 20, "forecast_date": forecast.forecast_date.isoformat()}
+                    )
+                    suggestion_text = f"{sug['title']}：{sug['description']}\\n建议行动：{'；'.join(sug['actions'])}"
+
+                    existing = db.query(KPIAlert).filter(
+                        KPIAlert.kpi_id == rule.kpi_id,
+                        KPIAlert.alert_type == "forecast",
+                        KPIAlert.alert_level == alert_level,
+                        KPIAlert.alert_message == alert_message,
+                        KPIAlert.status == "pending",
+                    ).first()
+                    if not existing:
+                        alert = KPIAlert(
+                            kpi_id=rule.kpi_id,
+                            alert_level=alert_level,
+                            alert_message=alert_message,
+                            alert_type="forecast",
+                            suggestion=suggestion_text,
+                            status="pending",
+                        )
+                        db.add(alert)
+                        alerts_generated += 1
+        except Exception as e:
+            logger.error(f"预测值预警检查失败: rule_id={rule.id}, error={e}")
+            continue
+
+    db.commit()
+    return alerts_generated
+
+
+@router.post("/check-forecast")
+def run_forecast_alert_check(db: Session = Depends(get_db)):
+    """执行预测值预警检查 — 检查未来7天预测值是否超限"""
+    generated = _check_forecast_alerts(db)
+    return {"message": f"预测值预警检查完成: 生成{generated}条", "generated": generated}
+
+
+@router.post("/generate-suggestions")
+def generate_alert_suggestions(db: Session = Depends(get_db)):
+    """为所有未处理的预警生成情景建议"""
+    from app.utils.cash_forecast_engine import generate_scenario_suggestion
+
+    pending = db.query(KPIAlert).filter(
+        KPIAlert.status == "pending",
+        KPIAlert.suggestion.is_(None),
+    ).all()
+
+    updated = 0
+    for alert in pending:
+        try:
+            sug_type = "cash_critical" if alert.alert_level == "red" else "cash_low"
+            if alert.alert_type == "forecast":
+                sug_type = "cash_critical" if alert.alert_level == "red" else "cash_low"
+            else:
+                sug_type = "cash_low"
+
+            kpi = db.query(KPIDefinition).filter(KPIDefinition.id == alert.kpi_id).first()
+            kpi_name = kpi.kpi_name if kpi else "未知KPI"
+
+            sug = generate_scenario_suggestion(sug_type, kpi_name, {
+                "alert_level": alert.alert_level,
+                "alert_message": alert.alert_message,
+            })
+            alert.suggestion = f"{sug['title']}：{sug['description']}\\n建议行动：{'；'.join(sug['actions'])}"
+            updated += 1
+        except Exception as e:
+            logger.error(f"生成建议失败: alert_id={alert.id}, error={e}")
+
+    db.commit()
+    return {"message": f"已为{updated}条预警生成情景建议", "updated": updated}

backend/app/api/predict.py

@@ -1,10 +1,16 @@
 """预测模拟API — 管理会计OS"""
 import logging
-from fastapi import APIRouter, HTTPException
+from fastapi import APIRouter, HTTPException, Depends
 from app.utils.predict_engine import (
     cvp_analysis, npv, irr,
     sensitivity_analysis, scenario_analysis,
 )
+from app.utils.cash_forecast_engine import (
+    forecast_cash_flow, save_forecast_to_db,
+    calculate_accuracy, generate_scenario_suggestion,
+)
+from app.database import get_db
+from sqlalchemy.orm import Session
 
 logger = logging.getLogger("cma.predict")
 router = APIRouter(prefix="/api/cma/predict", tags=["预测模拟"])
@@ -154,6 +160,105 @@ def api_cvp_detailed(data: dict):
         raise HTTPException(400, f"CVP详细分析失败: {str(e)}")
 
 
+# ── 现金流预测（AI事前预警） ────────────────────────────────────
+
+
+@router.post("/cash-forecast")
+def api_cash_forecast(data: dict, db: Session = Depends(get_db)):
+    """现金流预测 — 根据历史KPI推算未来30天现金流"""
+    try:
+        entity_id = int(data.get("entity_id", 1))
+        days = int(data.get("days", 30))
+        current_cash = float(data["current_cash"]) if data.get("current_cash") else None
+        result = forecast_cash_flow(entity_id, db, days, current_cash)
+        # 保存到数据库
+        try:
+            save_forecast_to_db(entity_id, result, db)
+        except Exception as e:
+            logger.warning(f"保存预测结果失败: {e}")
+        return result
+    except Exception as e:
+        raise HTTPException(400, f"现金流预测失败: {str(e)}")
+
+
+@router.get("/cash-forecast/history")
+def api_cash_forecast_history(
+    entity_id: int = 1,
+    days: int = 30,
+    db: Session = Depends(get_db),
+):
+    """获取已保存的现金流预测历史"""
+    from app.models import CashForecast
+    forecasts = db.query(CashForecast).filter(
+        CashForecast.entity_id == entity_id,
+    ).order_by(CashForecast.forecast_date.desc()).limit(days).all()
+    return {
+        "data": [{
+            "id": f.id,
+            "forecast_date": f.forecast_date.isoformat(),
+            "predicted_cash": f.predicted_cash,
+            "lower_bound": f.lower_bound,
+            "upper_bound": f.upper_bound,
+            "alert_status": f.alert_status,
+        } for f in forecasts]
+    }
+
+
+@router.get("/accuracy")
+def api_forecast_accuracy(
+    entity_id: int = 1,
+    db: Session = Depends(get_db),
+):
+    """预测准确率报表 — 上期预测 vs 本期实际"""
+    try:
+        results = calculate_accuracy(entity_id, db)
+
+        # 计算整体MAE/MAPE
+        if results:
+            total_mae = sum(r["mae"] for r in results) / len(results)
+            total_mape = sum(r["mape"] for r in results) / len(results)
+        else:
+            total_mae = 0
+            total_mape = 0
+
+        return {
+            "data": results,
+            "summary": {
+                "total_periods": len(results),
+                "avg_mae": round(total_mae, 2),
+                "avg_mape": round(total_mape, 2),
+            },
+        }
+    except Exception as e:
+        raise HTTPException(400, f"获取准确率失败: {str(e)}")
+
+
+@router.get("/scenario-suggestions")
+def api_scenario_suggestions(alert_type: str = None):
+    """获取情景建议模板"""
+    types = ["cash_low", "cash_critical", "cost_high", "revenue_drop"]
+    results = []
+    for at in types:
+        if alert_type and at != alert_type:
+            continue
+        sug = generate_scenario_suggestion(at, "")
+        results.append({"alert_type": at, **sug})
+    return {"data": results}
+
+
+@router.post("/scenario-suggestion/generate")
+def api_generate_suggestion(data: dict):
+    """根据预警信息动态生成情景建议"""
+    try:
+        alert_type = data.get("alert_type", "cash_low")
+        kpi_name = data.get("kpi_name", "未知KPI")
+        extra = data.get("extra", {})
+        sug = generate_scenario_suggestion(alert_type, kpi_name, extra)
+        return sug
+    except Exception as e:
+        raise HTTPException(400, f"生成建议失败: {str(e)}")
+
+
 # ── 实物期权计算器 ─────────────────────────────────────────────
 import math
 

backend/app/models/__init__.py

@@ -112,6 +112,9 @@ class KPIAlert(Base):
     kpi_value_id = Column(Integer, ForeignKey("kpi_values.id"), nullable=True)
     alert_level = Column(String(20), default="yellow", comment="green/yellow/red")
     alert_message = Column(String(500), nullable=False)
+    alert_type = Column(String(30), default="actual", comment="actual/forecast — 实际值超限/预测值超限")
+    suggestion = Column(Text, nullable=True, comment="情景建议")
+    action_plan_linked_id = Column(Integer, nullable=True, comment="关联的改善计划ID")
     status = Column(String(20), default="pending", comment="pending/processing/resolved")
     assignee = Column(String(100), nullable=True, comment="处理人")
     resolution = Column(Text, nullable=True, comment="处理结果")
@@ -362,3 +365,42 @@ class OKRTemplate(Base):
     is_active = Column(Integer, default=1)
     created_at = Column(DateTime, server_default=func.now())
     updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class CashForecast(Base):
+    """现金流预测 — 每日未来30天预测"""
+    __tablename__ = "cash_forecasts"
+    id = Column(Integer, primary_key=True, index=True)
+    entity_id = Column(Integer, ForeignKey("entities.id"), nullable=False, comment="企业ID")
+    forecast_date = Column(DateTime, nullable=False, comment="预测日期（每天一条）")
+    predicted_cash = Column(Float, nullable=True, comment="预测现金余额")
+    lower_bound = Column(Float, nullable=True, comment="置信区间下界")
+    upper_bound = Column(Float, nullable=True, comment="置信区间上界")
+    alert_status = Column(String(20), default="green", comment="green/yellow/red")
+    created_at = Column(DateTime, server_default=func.now())
+
+
+class ForecastAccuracy(Base):
+    """预测准确率 — 上期预测 vs 本期实际"""
+    __tablename__ = "forecast_accuracy"
+    id = Column(Integer, primary_key=True, index=True)
+    entity_id = Column(Integer, ForeignKey("entities.id"), nullable=False, comment="企业ID")
+    period = Column(String(20), nullable=False, comment="期间 2026-07")
+    forecast_value = Column(Float, nullable=True, comment="预测值")
+    actual_value = Column(Float, nullable=True, comment="实际值")
+    mae = Column(Float, nullable=True, comment="绝对误差")
+    mape = Column(Float, nullable=True, comment="百分比误差")
+    created_at = Column(DateTime, server_default=func.now())
+
+
+class ScenarioSuggestion(Base):
+    """情景建议模板 — 根据不同预警类型自动生成建议"""
+    __tablename__ = "scenario_suggestions"
+    id = Column(Integer, primary_key=True, index=True)
+    alert_type = Column(String(30), nullable=False, comment="预警类型: cash_low/cash_critical/cost_high/revenue_drop")
+    title = Column(String(200), nullable=False, comment="建议标题")
+    description = Column(Text, nullable=True, comment="详细建议")
+    action_template = Column(Text, nullable=True, comment="改善行动模板")
+    priority = Column(String(20), default="medium", comment="high/medium/low")
+    sort_order = Column(Integer, default=0, comment="排序")
+    created_at = Column(DateTime, server_default=func.now())

backend/app/utils/cash_forecast_engine.py

@@ -0,0 +1,322 @@
+"""现金流预测引擎 — 根据历史KPI数据推算未来30天现金流"""
+import logging
+from datetime import datetime, timedelta
+from typing import Optional
+from sqlalchemy.orm import Session
+import math
+import random
+
+logger = logging.getLogger("cma.cash_forecast")
+
+# 默认现金阈值（万元）
+DEFAULT_CASH_WARNING = 20.0   # 黄灯 — 低于20万
+DEFAULT_CASH_CRITICAL = 10.0  # 红灯 — 低于10万
+
+# 历史KPI编码映射
+KPI_CODES = {
+    "operating_cash_flow": "CASH_FLOW_001",   # 经营现金流
+    "receivables": "AR_001",                    # 应收账款
+    "payables": "AP_001",                      # 应付账款
+    "cash_balance": "CASH_001",                # 现金余额
+}
+
+
+def get_entity_kpi_history(entity_id: int, kpi_code: str, db: Session, limit_months: int = 6) -> list:
+    """获取实体某个KPI的历史值"""
+    from app.models import KPIDefinition, KPIValue
+    kpi = db.query(KPIDefinition).filter(
+        KPIDefinition.kpi_code == kpi_code,
+        KPIDefinition.entity_id == entity_id,
+    ).first()
+    if not kpi:
+        return []
+    values = db.query(KPIValue).filter(
+        KPIValue.kpi_id == kpi.id,
+        KPIValue.actual_value.isnot(None),
+    ).order_by(KPIValue.period.desc()).limit(limit_months).all()
+    return values
+
+
+def calc_trend(values: list) -> float:
+    """计算趋势系数 — 线性回归斜率 / 均值"""
+    if len(values) < 2:
+        return 0.0
+    vals = [v.actual_value for v in values]
+    n = len(vals)
+    avg_x = (n - 1) / 2.0
+    avg_y = sum(vals) / n
+    num = sum((i - avg_x) * (vals[i] - avg_y) for i in range(n))
+    den = sum((i - avg_x) ** 2 for i in range(n))
+    slope = num / den if den != 0 else 0
+    return slope / max(abs(avg_y), 1.0) * 100  # 趋势百分比
+
+
+def forecast_cash_flow(
+    entity_id: int,
+    db: Session,
+    days: int = 30,
+    current_cash: Optional[float] = None,
+) -> dict:
+    """
+    预测未来30天现金流
+    
+    算法：
+    1. 获取历史经营现金流、应收、应付趋势
+    2. 推算每日现金流入/流出
+    3. 生成每日预测值+置信区间
+    """
+    from app.models import KPIDefinition, KPIValue
+
+    # 获取当前现金余额
+    if current_cash is None:
+        cash_kpi = db.query(KPIDefinition).filter(
+            KPIDefinition.kpi_code == KPI_CODES["cash_balance"],
+            KPIDefinition.entity_id == entity_id,
+        ).first()
+        if cash_kpi:
+            latest_cash = db.query(KPIValue).filter(
+                KPIValue.kpi_id == cash_kpi.id,
+                KPIValue.actual_value.isnot(None),
+            ).order_by(KPIValue.period.desc()).first()
+            base_cash = latest_cash.actual_value if latest_cash else 30.0
+        else:
+            base_cash = 30.0  # 默认假设30万
+    else:
+        base_cash = current_cash
+
+    # 获取经营现金流历史
+    ocf_history = get_entity_kpi_history(entity_id, KPI_CODES["operating_cash_flow"], db)
+    ocf_trend = calc_trend(ocf_history)
+
+    # 获取应收历史
+    ar_history = get_entity_kpi_history(entity_id, KPI_CODES["receivables"], db)
+    ar_trend = calc_trend(ar_history)
+
+    # 获取应付历史
+    ap_history = get_entity_kpi_history(entity_id, KPI_CODES["payables"], db)
+    ap_trend = calc_trend(ap_history)
+
+    # 计算日均现金变化
+    ocf_avg = sum(v.actual_value for v in ocf_history) / max(len(ocf_history), 1) / 30.0 if ocf_history else 0.5
+
+    # 预测逻辑：趋势影响 + 季节性（月底回款高峰）
+    forecast = []
+    cash = base_cash
+    today = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
+
+    for day_offset in range(1, days + 1):
+        d = today + timedelta(days=day_offset)
+        day_of_month = d.day
+        is_month_end = day_of_month >= 25
+
+        # 每日现金变化 = 经营现金流日均值 × (1 + 趋势调整) + 季节因子
+        trend_factor = 1.0 + ocf_trend / 100.0
+        daily_change = ocf_avg * trend_factor
+
+        # 月底回款高峰
+        if is_month_end:
+            daily_change += ocf_avg * 0.3  # 月底多30%回款
+
+        # 周末效应
+        if d.weekday() >= 5:
+            daily_change *= 0.5  # 周末收支减半
+
+        cash += daily_change
+
+        # 置信区间：随时间增加而扩大
+        confidence_band = 1.0 + day_offset * 0.08  # 每过1天，区间扩大8%
+        std = max(abs(daily_change) * confidence_band, 0.5)
+        lower = cash - std * 0.5
+        upper = cash + std * 0.5
+
+        # 预警状态
+        if cash < DEFAULT_CASH_CRITICAL:
+            status = "red"
+        elif cash < DEFAULT_CASH_WARNING:
+            status = "yellow"
+        else:
+            status = "green"
+
+        forecast.append({
+            "date": d.strftime("%Y-%m-%d"),
+            "day_offset": day_offset,
+            "predicted_cash": round(cash, 2),
+            "lower_bound": round(max(lower, 0), 2),
+            "upper_bound": round(upper, 2),
+            "alert_status": status,
+        })
+
+    # 整体预警
+    min_cash = min(f["predicted_cash"] for f in forecast)
+    min_date = next(f["date"] for f in forecast if f["predicted_cash"] == min_cash)
+
+    suggestions = []
+    if min_cash < DEFAULT_CASH_CRITICAL:
+        suggestions.append({
+            "type": "critical",
+            "message": f"预计{min_date}现金余额降至{min_cash:.1f}万，低于警戒线{DEFAULT_CASH_CRITICAL}万",
+            "actions": [
+                "立即催收大额应收账款",
+                "暂停非必要支出",
+                "准备短期融资安排",
+            ]
+        })
+    elif min_cash < DEFAULT_CASH_WARNING:
+        suggestions.append({
+            "type": "warning",
+            "message": f"预计{min_date}现金余额降至{min_cash:.1f}万，低于关注线{DEFAULT_CASH_WARNING}万",
+            "actions": [
+                "加快应收账款回款",
+                "控制采购付款节奏",
+                "评估短期现金流压力",
+            ]
+        })
+
+    return {
+        "entity_id": entity_id,
+        "base_cash": round(base_cash, 2),
+        "days": days,
+        "forecast": forecast,
+        "min_cash": round(min_cash, 2),
+        "min_cash_date": min_date,
+        "trends": {
+            "operating_cash_flow_trend_pct": round(ocf_trend, 2),
+            "receivables_trend_pct": round(ar_trend, 2),
+            "payables_trend_pct": round(ap_trend, 2),
+        },
+        "suggestions": suggestions,
+    }
+
+
+def save_forecast_to_db(entity_id: int, forecast_data: dict, db: Session):
+    """将预测结果保存到数据库"""
+    from app.models import CashForecast
+    for f in forecast_data["forecast"]:
+        forecast_date = datetime.strptime(f["date"], "%Y-%m-%d")
+        cf = CashForecast(
+            entity_id=entity_id,
+            forecast_date=forecast_date,
+            predicted_cash=f["predicted_cash"],
+            lower_bound=f["lower_bound"],
+            upper_bound=f["upper_bound"],
+            alert_status=f["alert_status"],
+        )
+        db.add(cf)
+    db.commit()
+
+
+def calculate_accuracy(entity_id: int, db: Session) -> list:
+    """计算预测准确率 — 对比上期预测 vs 本期实际"""
+    from app.models import CashForecast, KPIDefinition, KPIValue
+
+    # 获取实体最近的预测
+    forecasts = db.query(CashForecast).filter(
+        CashForecast.entity_id == entity_id,
+    ).order_by(CashForecast.forecast_date.desc()).limit(90).all()
+
+    # 获取实际的现金余额KPI值
+    cash_kpi = db.query(KPIDefinition).filter(
+        KPIDefinition.kpi_code == KPI_CODES["cash_balance"],
+        KPIDefinition.entity_id == entity_id,
+    ).first()
+
+    if not cash_kpi or not forecasts:
+        return []
+
+    actuals = db.query(KPIValue).filter(
+        KPIValue.kpi_id == cash_kpi.id,
+        KPIValue.actual_value.isnot(None),
+    ).order_by(KPIValue.period.desc()).limit(12).all()
+
+    actual_map = {}
+    for a in actuals:
+        try:
+            # period like "2026-07" -> month approx
+            actual_map[a.period] = a.actual_value
+        except:
+            pass
+
+    # 按月汇总预测值和实际值，计算准确率
+    from collections import defaultdict
+    monthly_forecast = defaultdict(list)
+    for f in forecasts:
+        month_key = f.forecast_date.strftime("%Y-%m")
+        monthly_forecast[month_key].append(f.predicted_cash)
+
+    results = []
+    for month, f_vals in sorted(monthly_forecast.items()):
+        if month in actual_map:
+            f_avg = sum(f_vals) / len(f_vals)
+            a_val = actual_map[month]
+            mae = abs(f_avg - a_val)
+            mape = abs((f_avg - a_val) / max(abs(a_val), 1)) * 100
+            results.append({
+                "period": month,
+                "forecast_value": round(f_avg, 2),
+                "actual_value": round(a_val, 2),
+                "mae": round(mae, 2),
+                "mape": round(mape, 2),
+            })
+
+    return results
+
+
+def generate_scenario_suggestion(alert_type: str, kpi_name: str, extra: dict = None) -> dict:
+    """根据预警类型生成情景建议"""
+    suggestions = {
+        "cash_low": {
+            "title": "现金流紧张缓解方案",
+            "description": f"现金余额低于阈值，建议加快应收账款催收、控制支出、评估短期融资。",
+            "actions": [
+                f"催收大额应收账款（预计回款{extra.get('expected_receivables', '待定')}万元）",
+                "暂停非紧急采购和资本性支出",
+                "与供应商协商延长账期",
+                "评估银行短期授信额度",
+            ],
+            "priority": "high",
+        },
+        "cash_critical": {
+            "title": "现金流危机应对方案",
+            "description": f"现金余额接近断流，需立即采取紧急措施。",
+            "actions": [
+                "立即催收所有到期应收账款",
+                "暂停所有非必要支出",
+                "紧急联系银行安排短期贷款",
+                "评估资产变现可能性",
+            ],
+            "priority": "high",
+        },
+        "cost_high": {
+            "title": "成本管控优化方案",
+            "description": f"成本率异常偏高，建议进行成本结构分析和优化。",
+            "actions": [
+                "逐项分析成本构成，识别异常项",
+                "与供应商重新谈判采购价格",
+                "评估流程优化降本空间",
+                "建立费用审批红线上限",
+            ],
+            "priority": "medium",
+        },
+        "revenue_drop": {
+            "title": "收入下滑应对方案",
+            "description": f"收入出现下滑趋势，建议分析原因并制定恢复计划。",
+            "actions": [
+                "分析收入下滑原因（客户流失/价格战/需求变化）",
+                "制定客户留存和挽回计划",
+                "评估新产品/新市场机会",
+                "优化销售激励政策",
+            ],
+            "priority": "high",
+        },
+    }
+
+    sug = suggestions.get(alert_type, {
+        "title": "改善建议",
+        "description": "根据预警情况制定改善措施。",
+        "actions": ["分析预警原因", "制定改善计划", "跟踪执行效果"],
+        "priority": "medium",
+    })
+
+    if extra:
+        sug["extra"] = extra
+    return sug

frontend/src/api/index.ts

@@ -113,6 +113,9 @@ export const alertRulesApi = {
   checkAll: () => api.post('/alert-rules/check-all'),
   calculateDynamic: () => api.post('/alert-rules/calculate-dynamic'),
   dynamicThresholds: (params?: any) => api.get('/alert-rules/dynamic-thresholds', { params }),
+  // AI事前预警
+  checkForecast: () => api.post('/alert-rules/check-forecast'),
+  generateSuggestions: () => api.post('/alert-rules/generate-suggestions'),
 }
 
 export const userApi = {
@@ -174,6 +177,12 @@ export const predictApi = {
   sensitivity: (data: any) => api.post('/predict/sensitivity', data),
   scenario: (data: any) => api.post('/predict/scenario', data),
   growthQuality: (data: any) => api.post('/predict/growth-quality', data),
+  // AI事前预警
+  cashForecast: (data: any) => api.post('/predict/cash-forecast', data),
+  cashForecastHistory: (params?: any) => api.get('/predict/cash-forecast/history', { params }),
+  forecastAccuracy: (params?: any) => api.get('/predict/accuracy', { params }),
+  scenarioSuggestions: (params?: any) => api.get('/predict/scenario-suggestions', { params }),
+  generateSuggestion: (data: any) => api.post('/predict/scenario-suggestion/generate', data),
 }
 
 export const deviationPushApi = {

frontend/src/router/index.ts

@@ -27,6 +27,7 @@ const routes = [
       { path: 'deviations', name: 'DeviationDashboard', component: () => import('@/views/DeviationDashboard.vue'), meta: { title: '差异分析', roles: ['ceo', 'finance', 'business', 'it'] } },
       { path: 'cost', name: 'CostDashboard', component: () => import('@/views/CostDashboard.vue'), meta: { title: '成本分析', roles: ['ceo', 'finance', 'it'] } },
       { path: 'predict', name: 'PredictDashboard', component: () => import('@/views/PredictDashboard.vue'), meta: { title: '预测模拟', roles: ['ceo', 'finance', 'it'] } },
+      { path: 'predict/accuracy', name: 'PredictAccuracy', component: () => import('@/views/PredictAccuracy.vue'), meta: { title: '预测准确率', roles: ['ceo', 'finance', 'it'] } },
       { path: 'real-options', name: 'RealOptions', component: () => import('@/views/RealOptions.vue'), meta: { title: '实物期权计算器', roles: ['ceo', 'finance'] } },
       { path: 'action-plans', name: 'ActionPlans', component: () => import('@/views/ActionPlanLibrary.vue'), meta: { title: '改善行动', roles: ['ceo', 'finance', 'business', 'it'] } },
       { path: 'reports', name: 'ReportCenter', component: () => import('@/views/ReportCenter.vue'), meta: { title: '管理报表', roles: ['ceo', 'finance', 'business'] } },

frontend/src/views/AlertList.vue

@@ -39,11 +39,11 @@
       </div>
 
       <el-table :data="alerts" v-loading="loading" style="width:100%" border stripe size="small">
-        <el-table-column prop="alert_message" label="预警信息" min-width="320">
+        <el-table-column prop="alert_message" label="预警信息" min-width="300">
           <template #default="{ row }">
             <div style="display:flex;align-items:center;gap:4px;">
-              <el-tag v-if="isTrendAlert(row.alert_message)" size="small" type="info" effect="plain">趋势</el-tag>
+              <el-tag v-if="row.alert_type === 'forecast'" size="small" type="warning" effect="plain">🔮预测</el-tag>
-              <el-tag v-else size="small" type="primary" effect="plain">静态</el-tag>
+              <el-tag v-else size="small" type="primary" effect="plain">实际</el-tag>
               <span>{{ row.alert_message }}</span>
             </div>
           </template>
@@ -147,6 +147,8 @@
           <el-option label="已禁用" :value="0" />
         </el-select>
         <el-button type="primary" size="small" @click="loadRules">查询</el-button>
+        <el-button size="small" @click="checkForecastAlerts" :loading="fcLoading">🔮 检查预测值</el-button>
+        <el-button size="small" @click="generateAlertSuggestions" :loading="sgLoading">💡 生成情景建议</el-button>
       </div>
 
       <el-table :data="rules" v-loading="rulesLoading" style="width:100%" border stripe size="small">
@@ -254,7 +256,7 @@
     </el-dialog>
 
     <!-- 编辑预警规则弹窗 -->
-    <el-dialog v-model="showRuleForm" title="编辑预警规则" width="500px">
+    <el-dialog v-model="showRuleForm" title="编辑预警规则" width="520px">
       <el-form :model="ruleForm" label-width="110px" size="small">
         <el-form-item label="规则类型">
           <el-select v-model="ruleForm.rule_type" style="width:100%">
@@ -264,6 +266,14 @@
             <el-option label="下降趋势预警" value="trend_down" />
           </el-select>
         </el-form-item>
+        <el-form-item label="触发条件">
+          <el-select v-model="ruleForm.trigger_on" style="width:100%">
+            <el-option label="实际值超限" value="actual" />
+            <el-option label="预测值超限" value="forecast" />
+            <el-option label="两者都触发" value="both" />
+          </el-select>
+          <span style="color:#909399;font-size:12px;margin-top:2px;display:block;">预测值超限时，系统会检查未来7天现金流预测是否触及阈值</span>
+        </el-form-item>
         <el-form-item label="是否启用">
           <el-switch v-model="ruleForm.enabled" :active-value="1" :inactive-value="0" />
         </el-form-item>
@@ -366,6 +376,7 @@ const calcLoading = ref(false)
 const ruleForm = ref({
   kpi_id: null as number | null,
   rule_type: 'static',
+  trigger_on: 'actual',
   enabled: 1,
   params: { green: '', yellow: '', red: '', sensitivity: 1.0, threshold_pct: 10 },
 })
@@ -467,6 +478,7 @@ function editRule(row: any) {
   ruleForm.value = {
     kpi_id: row.kpi_id,
     rule_type: row.rule_type,
+    trigger_on: row.trigger_on || 'actual',
     enabled: row.enabled,
     params: { green: '', yellow: '', red: '', sensitivity: 1.0, threshold_pct: 10, ...(params || {}) },
   }
@@ -478,6 +490,7 @@ async function saveRule() {
   try {
     const data = {
       rule_type: ruleForm.value.rule_type,
+      trigger_on: ruleForm.value.trigger_on,
       enabled: ruleForm.value.enabled,
       params: ruleForm.value.params,
     }
@@ -514,6 +527,29 @@ async function generateRules() {
   generating.value = false
 }
 
+async function checkForecastAlerts() {
+  fcLoading.value = true
+  try {
+    const r: any = await alertRulesApi.checkForecast()
+    ElMessage.success(r.message || '预测值检查完成')
+    loadAlerts()
+  } catch (e) { ElMessage.error('检查失败') }
+  fcLoading.value = false
+}
+
+async function generateAlertSuggestions() {
+  sgLoading.value = true
+  try {
+    const r: any = await alertRulesApi.generateSuggestions()
+    ElMessage.success(r.message || '情景建议已生成')
+    loadAlerts()
+  } catch (e) { ElMessage.error('生成失败') }
+  sgLoading.value = false
+}
+
+const fcLoading = ref(false)
+const sgLoading = ref(false)
+
 async function calcDynamic() {
   calcLoading.value = true
   try {

frontend/src/views/PredictAccuracy.vue

@@ -0,0 +1,195 @@
+<template>
+  <div>
+    <div class="page-header">
+      <h3>预测准确率报表</h3>
+      <div class="header-actions">
+        <el-select v-model="entityId" size="small" style="width:200px;" @change="loadAccuracy">
+          <el-option label="陕西酣客（白酒经销）" :value="1" />
+          <el-option label="陕西博海科技（IT服务）" :value="2" />
+        </el-select>
+        <el-button size="small" @click="loadAccuracy" :loading="loading" type="primary">刷新</el-button>
+      </div>
+    </div>
+
+    <!-- 汇总卡片 -->
+    <el-row :gutter="16" style="margin-bottom:16px;">
+      <el-col :span="8">
+        <el-card shadow="never">
+          <div class="summary-card">
+            <div class="s-label">平均绝对误差 (MAE)</div>
+            <div class="s-value" :class="summary.avg_mae < 5 ? 'green' : summary.avg_mae < 10 ? 'orange' : 'red'">
+              {{ summary.avg_mae?.toFixed(2) || '--' }}
+              <span style="font-size:12px;color:#909399;">万元</span>
+            </div>
+          </div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="never">
+          <div class="summary-card">
+            <div class="s-label">平均百分比误差 (MAPE)</div>
+            <div class="s-value" :class="summary.avg_mape < 15 ? 'green' : summary.avg_mape < 30 ? 'orange' : 'red'">
+              {{ summary.avg_mape?.toFixed(2) || '--' }}
+              <span style="font-size:12px;color:#909399;">%</span>
+            </div>
+          </div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="never">
+          <div class="summary-card">
+            <div class="s-label">统计周期数</div>
+            <div class="s-value" style="color:#409eff;">
+              {{ summary.total_periods || 0 }}
+              <span style="font-size:12px;color:#909399;">个月</span>
+            </div>
+          </div>
+        </el-card>
+      </el-col>
+    </el-row>
+
+    <!-- 准确率趋势图 -->
+    <el-card style="margin-bottom:16px;">
+      <template #header>
+        <span>📈 预测准确率趋势（MAE/MAPE）</span>
+      </template>
+      <div ref="accuracyChartRef" style="height:360px;width:100%;"></div>
+    </el-card>
+
+    <!-- 每月明细 -->
+    <el-card>
+      <template #header>
+        <span>📋 每月预测 vs 实际对比</span>
+        <span style="margin-left:12px;font-size:12px;color:#999;" v-if="accuracyData.length">共 {{ accuracyData.length }} 期</span>
+      </template>
+      <el-table :data="accuracyData" v-loading="loading" border stripe size="small" style="width:100%;">
+        <el-table-column prop="period" label="期间" width="100" />
+        <el-table-column prop="forecast_value" label="预测值(万)" width="130" align="right">
+          <template #default="{ row }">{{ row.forecast_value?.toFixed(2) }}</template>
+        </el-table-column>
+        <el-table-column prop="actual_value" label="实际值(万)" width="130" align="right">
+          <template #default="{ row }">{{ row.actual_value?.toFixed(2) }}</template>
+        </el-table-column>
+        <el-table-column label="差异(万)" width="120" align="right">
+          <template #default="{ row }">
+            <span :style="{ color: Math.abs(row.forecast_value - row.actual_value) < 5 ? '#67c23a' : '#f56c6c', fontWeight:600 }">
+              {{ (row.forecast_value - row.actual_value) > 0 ? '+' : '' }}{{ (row.forecast_value - row.actual_value)?.toFixed(2) }}
+            </span>
+          </template>
+        </el-table-column>
+        <el-table-column prop="mae" label="MAE(万)" width="100" align="right">
+          <template #default="{ row }">
+            <span :style="{ color: row.mae < 5 ? '#67c23a' : row.mae < 10 ? '#e6a23c' : '#f56c6c' }">{{ row.mae?.toFixed(2) }}</span>
+          </template>
+        </el-table-column>
+        <el-table-column prop="mape" label="MAPE(%)" width="100" align="right">
+          <template #default="{ row }">
+            <span :style="{ color: row.mape < 15 ? '#67c23a' : row.mape < 30 ? '#e6a23c' : '#f56c6c' }">{{ row.mape?.toFixed(2) }}%</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="评级" width="80" align="center">
+          <template #default="{ row }">
+            <el-tag :type="row.mape < 15 ? 'success' : row.mape < 30 ? 'warning' : 'danger'" size="small">
+              {{ row.mape < 15 ? '准确' : row.mape < 30 ? '一般' : '偏差大' }}
+            </el-tag>
+          </template>
+        </el-table-column>
+      </el-table>
+    </el-card>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, nextTick, onMounted } from 'vue'
+import { ElMessage } from 'element-plus'
+import { predictApi } from '../api/index'
+
+const loading = ref(false)
+const entityId = ref(1)
+const accuracyData = ref<any[]>([])
+const summary = ref<any>({})
+const accuracyChartRef = ref<HTMLElement | null>(null)
+let accuracyChart: any = null
+
+async function loadAccuracy() {
+  loading.value = true
+  try {
+    const r: any = await predictApi.forecastAccuracy({ entity_id: entityId.value })
+    accuracyData.value = r.data || []
+    summary.value = r.summary || {}
+    nextTick(() => renderAccuracyChart())
+  } catch (e) {
+    ElMessage.error('加载预测准确率失败')
+  }
+  loading.value = false
+}
+
+function renderAccuracyChart() {
+  if (!accuracyChartRef.value || !accuracyData.value.length) return
+  import('echarts').then(echarts => {
+    if (accuracyChart) accuracyChart.dispose()
+    accuracyChart = echarts.init(accuracyChartRef.value!)
+
+    const periods = accuracyData.value.map((d: any) => d.period)
+    const maeData = accuracyData.value.map((d: any) => d.mae)
+    const mapeData = accuracyData.value.map((d: any) => d.mape)
+    const forecastVals = accuracyData.value.map((d: any) => d.forecast_value)
+    const actualVals = accuracyData.value.map((d: any) => d.actual_value)
+
+    accuracyChart.setOption({
+      grid: [{ left: 60, right: 30, top: 20, bottom: 50 }, { left: 60, right: 30, top: 320, bottom: 50 }],
+      xAxis: [
+        { type: 'category', data: periods, axisLabel: { rotate: 45, fontSize: 10 }, gridIndex: 0 },
+        { type: 'category', data: periods, axisLabel: { rotate: 45, fontSize: 10 }, gridIndex: 1 },
+      ],
+      yAxis: [
+        { type: 'value', name: '误差', gridIndex: 0 },
+        { type: 'value', name: '现金(万)', gridIndex: 1 },
+      ],
+      series: [
+        {
+          name: 'MAE', type: 'bar', data: maeData, xAxisIndex: 0, yAxisIndex: 0,
+          itemStyle: { color: '#409eff', borderRadius: [4, 4, 0, 0] },
+          barWidth: '30%',
+        },
+        {
+          name: 'MAPE(%)', type: 'line', data: mapeData, xAxisIndex: 0, yAxisIndex: 0,
+          lineStyle: { color: '#e6a23c', width: 2 },
+          symbol: 'circle', symbolSize: 6,
+          itemStyle: { color: '#e6a23c' },
+        },
+        {
+          name: '预测值', type: 'line', data: forecastVals, xAxisIndex: 1, yAxisIndex: 1,
+          lineStyle: { color: '#409eff', width: 2 },
+          symbol: 'diamond', symbolSize: 8,
+          itemStyle: { color: '#409eff' },
+        },
+        {
+          name: '实际值', type: 'line', data: actualVals, xAxisIndex: 1, yAxisIndex: 1,
+          lineStyle: { color: '#67c23a', width: 2 },
+          symbol: 'circle', symbolSize: 6,
+          itemStyle: { color: '#67c23a' },
+        },
+      ],
+      tooltip: { trigger: 'axis' },
+      legend: { bottom: 0, icon: 'circle', itemWidth: 8, itemHeight: 8 },
+    })
+  })
+}
+
+onMounted(() => {
+  loadAccuracy()
+})
+</script>
+
+<style scoped>
+.page-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; }
+.page-header h3 { margin:0; }
+.header-actions { display:flex; gap:8px; }
+.summary-card { text-align:center; padding:8px 0; }
+.s-label { font-size:13px; color:#909399; margin-bottom:8px; }
+.s-value { font-size:28px; font-weight:bold; }
+.s-value.green { color:#67c23a; }
+.s-value.orange { color:#e6a23c; }
+.s-value.red { color:#f56c6c; }
+</style>

frontend/src/views/PredictDashboard.vue

@@ -216,6 +216,111 @@
           </el-col>
         </el-row>
       </el-tab-pane>
+
+      <!-- Tab 5: 现金流预测（AI事前预警） -->
+      <el-tab-pane label="现金流预测" name="cashFlow">
+        <el-row :gutter="16">
+          <el-col :span="6">
+            <el-card>
+              <template #header>预测参数</template>
+              <el-form label-position="top">
+                <el-form-item label="企业实体">
+                  <el-select v-model="cfEntityId" style="width:100%;">
+                    <el-option label="陕西酣客（白酒经销）" :value="1" />
+                    <el-option label="陕西博海科技（IT服务）" :value="2" />
+                  </el-select>
+                </el-form-item>
+                <el-form-item label="当前现金余额（万元）">
+                  <el-input-number v-model="cfCurrentCash" :min="0" :precision="1" style="width:100%;" />
+                </el-form-item>
+                <el-form-item label="预测天数">
+                  <el-select v-model="cfDays" style="width:100%;">
+                    <el-option label="未来7天" :value="7" />
+                    <el-option label="未来15天" :value="15" />
+                    <el-option label="未来30天" :value="30" />
+                    <el-option label="未来60天" :value="60" />
+                  </el-select>
+                </el-form-item>
+                <el-form-item>
+                  <el-button type="primary" @click="doCashForecast" :loading="cfLoading" style="width:100%;">🔮 开始预测</el-button>
+                </el-form-item>
+              </el-form>
+            </el-card>
+            <!-- 趋势指标 -->
+            <el-card style="margin-top:12px;" v-if="cfResult.trends">
+              <template #header>📊 趋势指标</template>
+              <div class="trend-item"><span class="t-label">经营现金流趋势</span><span class="t-value" :class="cfResult.trends.operating_cash_flow_trend_pct >= 0 ? 'green' : 'red'">{{ cfResult.trends.operating_cash_flow_trend_pct }}%</span></div>
+              <div class="trend-item"><span class="t-label">应收账款趋势</span><span class="t-value" :class="cfResult.trends.receivables_trend_pct >= 0 ? 'red' : 'green'">{{ cfResult.trends.receivables_trend_pct }}%</span></div>
+              <div class="trend-item"><span class="t-label">应付账款趋势</span><span class="t-value" :class="cfResult.trends.payables_trend_pct >= 0 ? 'green' : 'red'">{{ cfResult.trends.payables_trend_pct }}%</span></div>
+            </el-card>
+          </el-col>
+          <el-col :span="18">
+            <!-- 预测折线图 -->
+            <el-card v-if="cfResult.forecast?.length">
+              <template #header>
+                <div style="display:flex;justify-content:space-between;align-items:center;">
+                  <span>📈 现金流预测 — 未来{{ cfDays }}天</span>
+                  <span>
+                    <span style="font-size:12px;color:#909399;">基准现金：</span>
+                    <strong>{{ cfResult.base_cash }}万</strong>
+                    <span style="margin-left:12px;font-size:12px;color:#909399;">最低点：</span>
+                    <strong :style="{color: cfResult.min_cash < 10 ? '#f56c6c' : cfResult.min_cash < 20 ? '#e6a23c' : '#67c23a'}">{{ cfResult.min_cash }}万</strong>
+                    <span style="margin-left:4px;font-size:12px;color:#909399;">（{{ cfResult.min_cash_date }}）</span>
+                  </span>
+                </div>
+              </template>
+              <div ref="cfChartRef" style="height:380px;width:100%;"></div>
+            </el-card>
+            <el-empty v-else-if="!cfLoading" description="设置参数后点击「开始预测」" style="padding:60px 0;" />
+
+            <!-- 预警建议 -->
+            <el-card style="margin-top:16px;" v-if="cfResult.suggestions?.length">
+              <template #header>💡 预警建议</template>
+              <div v-for="(sug, idx) in cfResult.suggestions" :key="idx" style="margin-bottom:12px;">
+                <el-alert
+                  :title="sug.message"
+                  :type="sug.type === 'critical' ? 'error' : 'warning'"
+                  :closable="false"
+                  show-icon
+                  style="margin-bottom:8px;"
+                />
+                <el-tag v-for="(act, aidx) in sug.actions" :key="aidx" style="margin:2px 4px 2px 0;" size="small" effect="plain">
+                  ✅ {{ act }}
+                </el-tag>
+              </div>
+            </el-card>
+
+            <!-- 每日预测明细表 -->
+            <el-card style="margin-top:16px;" v-if="cfResult.forecast?.length">
+              <template #header>
+                <span>📋 每日预测明细</span>
+                <span style="margin-left:12px;font-size:12px;color:#999;">（共{{ cfResult.forecast.length }}天）</span>
+              </template>
+              <el-table :data="cfResult.forecast" border stripe size="small" max-height="300" style="width:100%;">
+                <el-table-column prop="date" label="日期" width="110" />
+                <el-table-column prop="predicted_cash" label="预测现金(万)" width="130" align="right">
+                  <template #default="{ row }">
+                    <span :style="{ color: row.predicted_cash < 10 ? '#f56c6c' : row.predicted_cash < 20 ? '#e6a23c' : '#67c23a', fontWeight:600 }">{{ row.predicted_cash?.toFixed(2) }}</span>
+                  </template>
+                </el-table-column>
+                <el-table-column prop="lower_bound" label="下界(万)" width="110" align="right">
+                  <template #default="{ row }">{{ row.lower_bound?.toFixed(2) }}</template>
+                </el-table-column>
+                <el-table-column prop="upper_bound" label="上界(万)" width="110" align="right">
+                  <template #default="{ row }">{{ row.upper_bound?.toFixed(2) }}</template>
+                </el-table-column>
+                <el-table-column prop="alert_status" label="状态" width="80" align="center">
+                  <template #default="{ row }">
+                    <el-tag :type="row.alert_status === 'red' ? 'danger' : row.alert_status === 'yellow' ? 'warning' : 'success'" size="small">
+                      {{ row.alert_status === 'red' ? '🔴预警' : row.alert_status === 'yellow' ? '🟡关注' : '🟢安全' }}
+                    </el-tag>
+                  </template>
+                </el-table-column>
+              </el-table>
+            </el-card>
+          </el-col>
+        </el-row>
+      </el-tab-pane>
     </el-tabs>
   </div>
 </template>
@@ -359,6 +464,141 @@ async function doScenario() {
   } catch { ElMessage.error('情景模拟失败') }
   scenarioLoading.value = false
 }
+
+// ── 现金流预测（AI事前预警） ──
+const cfLoading = ref(false)
+const cfEntityId = ref(1)
+const cfCurrentCash = ref(30)
+const cfDays = ref(30)
+const cfResult = ref<any>({})
+const cfChartRef = ref<HTMLElement | null>(null)
+let cfChart: any = null
+
+async function doCashForecast() {
+  cfLoading.value = true
+  try {
+    const payload = {
+      entity_id: cfEntityId.value,
+      days: cfDays.value,
+      current_cash: cfCurrentCash.value,
+    }
+    cfResult.value = await predictApi.cashForecast(payload) as any
+    nextTick(() => renderCfChart())
+  } catch (e: any) {
+    ElMessage.error('现金流预测失败: ' + (e?.message || ''))
+  }
+  cfLoading.value = false
+}
+
+function renderCfChart() {
+  if (!cfChartRef.value || !cfResult.value.forecast?.length) return
+  import('echarts').then(echarts => {
+    if (cfChart) cfChart.dispose()
+    cfChart = echarts.init(cfChartRef.value!)
+
+    const forecast = cfResult.value.forecast
+    const dates = forecast.map((d: any) => d.date.slice(5))
+    const predicted = forecast.map((d: any) => d.predicted_cash)
+    const lower = forecast.map((d: any) => d.lower_bound)
+    const upper = forecast.map((d: any) => d.upper_bound)
+
+    // 标记预警点
+    const alertData: any[] = []
+    const markAreas: any[] = []
+    let lastStatus: string | null = null
+    const alertRanges: { startIdx: number, endIdx: number, color: string }[] = []
+    let currentRange: { startIdx: number, color: string } | null = null
+
+    forecast.forEach((d: any, idx: number) => {
+      if (d.alert_status !== 'green') {
+        if (!currentRange) {
+          currentRange = { startIdx: idx, color: d.alert_status === 'red' ? '#f56c6c' : '#e6a23c' }
+        }
+        if (d.alert_status === 'red') {
+          alertData.push({
+            name: d.date,
+            coord: [idx, d.predicted_cash],
+            itemStyle: { color: '#f56c6c' },
+            symbol: 'pin',
+            symbolSize: 30,
+            label: { show: true, formatter: '🔴', fontSize: 16 }
+          })
+        }
+      } else if (currentRange) {
+        alertRanges.push({ startIdx: currentRange.startIdx, endIdx: idx - 1, color: currentRange.color })
+        currentRange = null
+      }
+    })
+    if (currentRange) {
+      alertRanges.push({ startIdx: currentRange.startIdx, endIdx: forecast.length - 1, color: currentRange.color })
+    }
+
+    cfChart.setOption({
+      grid: { left: 60, right: 30, top: 20, bottom: 40 },
+      xAxis: { type: 'category', data: dates, axisLabel: { rotate: 45, fontSize: 10 } },
+      yAxis: { type: 'value', name: '现金余额（万元）', min: 0 },
+      series: [
+        {
+          name: '现金余额',
+          type: 'line',
+          data: predicted,
+          smooth: true,
+          lineStyle: { width: 2, color: '#409eff' },
+          itemStyle: { color: '#409eff' },
+          symbol: 'circle',
+          symbolSize: 4,
+          areaStyle: {
+            color: {
+              type: 'linear', x: 0, y: 0, x2: 0, y2: 1,
+              colorStops: [
+                { offset: 0, color: 'rgba(64,158,255,0.25)' },
+                { offset: 1, color: 'rgba(64,158,255,0.02)' },
+              ]
+            }
+          },
+          markArea: {
+            silent: true,
+            data: alertRanges.map(r => [{
+              xAxis: r.startIdx,
+              itemStyle: { color: r.color, opacity: 0.1 }
+            }, {
+              xAxis: r.endIdx
+            }])
+          },
+          markPoint: { data: alertData },
+        },
+        {
+          name: '置信区间上界',
+          type: 'line',
+          data: upper,
+          smooth: true,
+          lineStyle: { width: 1, color: '#909399', type: 'dashed' },
+          symbol: 'none',
+        },
+        {
+          name: '置信区间下界',
+          type: 'line',
+          data: lower,
+          smooth: true,
+          lineStyle: { width: 1, color: '#909399', type: 'dashed' },
+          symbol: 'none',
+          areaStyle: { color: 'rgba(144,147,153,0.05)' },
+        },
+      ],
+      tooltip: {
+        trigger: 'axis',
+        formatter: function(params: any) {
+          const idx = params[0]?.dataIndex
+          const d = forecast[idx]
+          if (!d) return ''
+          const statusLabel = d.alert_status === 'red' ? '🔴预警' : d.alert_status === 'yellow' ? '🟡关注' : '🟢安全'
+          return `<strong>${d.date}</strong><br/>现金余额: <strong>${d.predicted_cash.toFixed(2)}万</strong><br/>置信区间: ${d.lower_bound.toFixed(2)} ~ ${d.upper_bound.toFixed(2)}万<br/>状态: ${statusLabel}`
+        }
+      },
+      legend: { bottom: 0, icon: 'circle', itemWidth: 8, itemHeight: 8 },
+    })
+  })
+}
 </script>
 
 <style scoped>
@@ -370,4 +610,10 @@ async function doScenario() {
 .r-value.orange { color: #e6a23c; }
 .r-value.red { color: #f56c6c; }
 .r-value.purple { color: #8b5cf6; }
+.trend-item { display:flex; justify-content:space-between; align-items:center; padding:6px 0; border-bottom:1px solid #f0f0f0; }
+.trend-item:last-child { border-bottom:none; }
+.t-label { font-size:13px; color:#606266; }
+.t-value { font-weight:600; font-size:14px; }
+.t-value.green { color:#67c23a; }
+.t-value.red { color:#f56c6c; }
 </style>