diff --git a/backend/app/services/regime_builder.py b/backend/app/services/regime_builder.py
index faed363..3143779 100644
--- a/backend/app/services/regime_builder.py
+++ b/backend/app/services/regime_builder.py
@@ -60,14 +60,11 @@ def _score(value: float, low: float, high: float) -> float:
     return float(max(0, min(100, round((value - low) / (high - low) * 100))))
 
 
-def classify_state(metrics: dict) -> tuple[str, int]:
-    """规则引擎: 4 维指标 → 离散状态 + 综合分(0-100)。
+def _compute_subscores(metrics: dict) -> dict:
+    """计算 4 个子维度分 + 综合分(未取整)。供 classify_state 和持久化复用。
 
-    对齐看板情绪分的轻量维度(去掉量能/主线以控制内存):
-    - 赚钱 profit: 涨家数占比 + 均涨幅 + 中位涨幅 + 强弱差
-    - 投机 speculation: 涨停数 + 封板率 + 连板高度
-    - 抗跌 resilience: 跌家数占比 + 大跌股占比(大跌日此项暴跌 → 总分进 weak)
-    - 趋势 trend: 指数涨幅 + MA20 上方占比
+    返回 {profit, speculation, resilience, trend, score(float, 0-100)}。
+    子维度分也是 0-100, 供趋势图展示"综合分由什么驱动"。
 
     metrics 期望字段(由 _aggregate_daily 聚合):
       up_pct, down_pct, avg_pct, median_pct, strong_up_pct, strong_down_pct,
@@ -109,7 +106,29 @@ def classify_state(metrics: dict) -> tuple[str, int]:
         + resilience * WEIGHTS["resilience"]
         + trend * WEIGHTS["trend"]
     )
-    score = max(0, min(100, round(score)))
+    return {
+        "profit": profit, "speculation": speculation,
+        "resilience": resilience, "trend": trend,
+        "score": max(0, min(100, score)),
+    }
+
+
+def classify_state(metrics: dict) -> tuple[str, int]:
+    """规则引擎: 4 维指标 → 离散状态 + 综合分(0-100)。
+
+    对齐看板情绪分的轻量维度(去掉量能/主线以控制内存):
+    - 赚钱 profit: 涨家数占比 + 均涨幅 + 中位涨幅 + 强弱差
+    - 投机 speculation: 涨停数 + 封板率 + 连板高度
+    - 抗跌 resilience: 跌家数占比 + 大跌股占比(大跌日此项暴跌 → 总分进 weak)
+    - 趋势 trend: 指数涨幅 + MA20 上方占比
+
+    metrics 期望字段(由 _aggregate_daily 聚合):
+      up_pct, down_pct, avg_pct, median_pct, strong_up_pct, strong_down_pct,
+      strong_diff_pct, limit_up, seal_rate(0-1), max_consecutive,
+      index_pct(小数), above_ma20_pct(0-1)
+    """
+    sub = _compute_subscores(metrics)
+    score = max(0, min(100, round(sub["score"])))
 
     if score >= STATE_STRONG:
         state = "strong"
@@ -242,6 +261,8 @@ def _aggregate_daily(df: pl.DataFrame, index_pct_map: dict | None = None) -> pl.
             "strong_diff_pct": strong_up_pct - strong_down_pct,
         }
         state, score = classify_state(metrics)
+        # 4 个子维度分(供趋势图展示"综合分由什么驱动" + 未来策略按子维度过滤)
+        sub = _compute_subscores(metrics)
         rows.append({
             "date": r["date"],
             "state": state,
@@ -263,6 +284,11 @@ def _aggregate_daily(df: pl.DataFrame, index_pct_map: dict | None = None) -> pl.
             "median_pct": round(median_pct, 4),
             "strong_up_pct": round(strong_up_pct, 4),
             "strong_down_pct": round(strong_down_pct, 4),
+            # 4 个子维度分(0-100, 综合分加权来源): 赚钱/投机/抗跌/趋势
+            "profit_score": round(sub["profit"]),
+            "speculation_score": round(sub["speculation"]),
+            "resilience_score": round(sub["resilience"]),
+            "trend_score": round(sub["trend"]),
         })
     return pl.DataFrame(rows) if rows else pl.DataFrame()
 
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index 729e569..72a8919 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -437,6 +437,15 @@ export interface RegimeRow {
   above_ma20_pct: number
   total_amount: number
   avg_turnover: number
+  // 4 个子维度分(0-100, 重算后才有; 旧数据可能缺) — 综合分的加权来源
+  avg_pct?: number
+  median_pct?: number
+  strong_up_pct?: number
+  strong_down_pct?: number
+  profit_score?: number
+  speculation_score?: number
+  resilience_score?: number
+  trend_score?: number
 }
 
 export interface RegimeHistory {
diff --git a/frontend/src/pages/Regime.tsx b/frontend/src/pages/Regime.tsx
index 8cf174e..a370ba2 100644
--- a/frontend/src/pages/Regime.tsx
+++ b/frontend/src/pages/Regime.tsx
@@ -134,19 +134,49 @@ export function Regime() {
   const rows: RegimeRow[] = history.data?.rows ?? []
   const latest = rows.length > 0 ? rows[rows.length - 1] : null
 
-  // 趋势图: 综合分曲线 + 涨停数柱状
+  // 趋势图: 综合分主线 + 4 子维度曲线(可切换) + 状态背景色带 + 涨停数柱状
   const trendOption = useMemo<echarts.EChartsOption | null>(() => {
     if (rows.length === 0) return null
     const dates = rows.map(r => r.date)
     const scores = rows.map(r => r.score)
     const limitUps = rows.map(r => r.limit_up)
+    const profit = rows.map(r => r.profit_score ?? null)
+    const speculation = rows.map(r => r.speculation_score ?? null)
+    const resilience = rows.map(r => r.resilience_score ?? null)
+    const trend = rows.map(r => r.trend_score ?? null)
+
+    // 状态背景色带: 合并连续同状态日期段, 每段用状态色低透明度着色
+    const stateBands: any[] = []
+    let bandStart = rows[0]?.date
+    let prevState = rows[0]?.state
+    rows.forEach((r, i) => {
+      if (r.state !== prevState || i === rows.length - 1) {
+        const bandEnd = i === rows.length - 1 ? r.date : rows[i - 1].date
+        if (prevState && REGIME_STATE_COLORS[prevState as RegimeState]) {
+          stateBands.push([
+            { xAxis: bandStart, itemStyle: { color: REGIME_STATE_COLORS[prevState as RegimeState], opacity: 0.08 } },
+            { xAxis: bandEnd },
+          ])
+        }
+        bandStart = r.date
+        prevState = r.state
+      }
+    })
+
+    const subLineStyle = { width: 1.2, type: 'dotted' as const, opacity: 0.8 }
+
     return {
       backgroundColor: 'transparent',
       tooltip: { trigger: 'axis', backgroundColor: ct.tooltipBg, borderColor: ct.tooltipBorder, textStyle: { color: ct.tooltipText } },
-      legend: { data: ['综合分', '涨停数'], textStyle: { color: ct.text }, top: 0 },
-      grid: { left: 48, right: 48, top: 32, bottom: 56 },
+      legend: {
+        data: ['综合分', '涨停数', '赚钱', '投机', '抗跌', '趋势'],
+        textStyle: { color: ct.text, fontSize: 10 }, top: 0,
+        // 默认只显示综合分 + 涨停数(简洁); 4 个子维度默认隐藏, 点图例展开看驱动因素
+        selected: { '综合分': true, '涨停数': true, '赚钱': false, '投机': false, '抗跌': false, '趋势': false },
+      },
+      grid: { left: 48, right: 48, top: 36, bottom: 56 },
       xAxis: {
-        type: 'category', data: dates,
+        type: 'category', data: dates, boundaryGap: false,
         axisLabel: { color: ct.text, fontSize: 10, formatter: (v: string) => v.slice(5) },
         axisLine: { lineStyle: { color: ct.grid } },
       },
@@ -159,13 +189,27 @@ export function Regime() {
         { type: 'slider', bottom: 8, height: 16, borderColor: ct.border, fillerColor: ct.zoomFill, textStyle: { color: ct.text } },
       ],
       series: [
+        // 涨停数柱状(半透明背景)
+        { name: '涨停数', type: 'bar', data: limitUps, yAxisIndex: 1, barMaxWidth: 6,
+          itemStyle: { color: REGIME_STATE_COLORS.strong, opacity: 0.35 }, z: 1 },
+        // 4 子维度曲线: 帮助理解综合分由什么驱动(点图例可切换)
+        { name: '赚钱', type: 'line', data: profit, smooth: true, symbol: 'none',
+          lineStyle: { ...subLineStyle, color: '#f59e0b' }, z: 2 },
+        { name: '投机', type: 'line', data: speculation, smooth: true, symbol: 'none',
+          lineStyle: { ...subLineStyle, color: '#a855f7' }, z: 2 },
+        { name: '抗跌', type: 'line', data: resilience, smooth: true, symbol: 'none',
+          lineStyle: { ...subLineStyle, color: '#10b981' }, z: 2 },
+        { name: '趋势', type: 'line', data: trend, smooth: true, symbol: 'none',
+          lineStyle: { ...subLineStyle, color: '#3b82f6' }, z: 2 },
+        // 综合分主线(加粗置顶) + 状态背景色带 + 阈值横虚线
         { name: '综合分', type: 'line', data: scores, smooth: true, symbol: 'none',
-          lineStyle: { width: 2, color: ct.textStrong }, areaStyle: { opacity: 0.08 },
+          lineStyle: { width: 2.5, color: ct.textStrong }, areaStyle: { opacity: 0.06 }, z: 3,
+          markArea: { silent: true, data: stateBands },
           markLine: { silent: true, lineStyle: { type: 'dashed', color: ct.grid }, data: [
-            { yAxis: 75, label: { formatter: '强势', color: ct.text, fontSize: 9 } },
-            { yAxis: 40, label: { formatter: '震荡', color: ct.text, fontSize: 9 } },
+            { yAxis: 70, label: { formatter: '强势', color: ct.text, fontSize: 9 } },
+            { yAxis: 45, label: { formatter: '震荡', color: ct.text, fontSize: 9 } },
+            { yAxis: 30, label: { formatter: '偏弱', color: ct.text, fontSize: 9 } },
           ] } },
-        { name: '涨停数', type: 'bar', data: limitUps, yAxisIndex: 1, barMaxWidth: 6, itemStyle: { color: REGIME_STATE_COLORS.strong } },
       ],
     }
   }, [rows, days, ct])
@@ -373,7 +417,8 @@ export function Regime() {
       {/* ── 趋势图 + 分布图 ── */}
       <div className="grid grid-cols-1 gap-4 lg:grid-cols-3">
         <div className={cn(cardCls, 'p-3 lg:col-span-2')}>
-          <SectionTitle icon={Activity} title="环境综合分 · 涨停数趋势" />
+          <SectionTitle icon={Activity} title="环境综合分趋势"
+            hint="综合分(粗) · 赚钱/投机/抗跌/趋势(细, 可点图例切换) · 背景色=状态" />
           <div ref={trendRef} className="mt-2 h-[320px]" />
         </div>
         <div className={cn(cardCls, 'p-3')}>