diff --git a/backend/__pycache__/main.cpython-310.pyc b/backend/__pycache__/main.cpython-310.pyc
deleted file mode 100644
index dc1700c..0000000
Binary files a/backend/__pycache__/main.cpython-310.pyc and /dev/null differ
diff --git a/backend/main.py b/backend/main.py
index 0881daa..2517927 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -426,13 +426,29 @@ async def get_signal_latest(user: dict = Depends(get_current_user)):
     result = {}
     for sym in ["BTCUSDT", "ETHUSDT"]:
         row = await async_fetchrow(
-            "SELECT ts, cvd_fast, cvd_mid, cvd_day, cvd_fast_slope, atr_5m, atr_percentile, "
-            "vwap_30m, price, p95_qty, p99_qty, score, signal "
-            "FROM signal_indicators WHERE symbol = $1 ORDER BY ts DESC LIMIT 1",
+            "SELECT to_jsonb(si) AS data FROM signal_indicators si WHERE symbol = $1 ORDER BY ts DESC LIMIT 1",
             sym
         )
         if row:
-            result[sym.replace("USDT", "")] = row
+            result[sym.replace("USDT", "")] = row["data"]
+    return result
+
+
+@app.get("/api/signals/market-indicators")
+async def get_market_indicators(user: dict = Depends(get_current_user)):
+    """返回最新的market_indicators数据（V5.1新增4个数据源）"""
+    result = {}
+    for sym in ["BTCUSDT", "ETHUSDT"]:
+        indicators = {}
+        for ind_type in ["long_short_ratio", "top_trader_position", "open_interest_hist", "coinbase_premium"]:
+            row = await async_fetchrow(
+                "SELECT value, timestamp_ms FROM market_indicators WHERE symbol = $1 AND indicator_type = $2 ORDER BY timestamp_ms DESC LIMIT 1",
+                sym,
+                ind_type,
+            )
+            if row:
+                indicators[ind_type] = {"value": row["value"], "ts": row["timestamp_ms"]}
+        result[sym.replace("USDT", "")] = indicators
     return result
 
 
diff --git a/frontend/app/signals/page.tsx b/frontend/app/signals/page.tsx
index 978c0d2..b7efa9a 100644
--- a/frontend/app/signals/page.tsx
+++ b/frontend/app/signals/page.tsx
@@ -37,6 +37,26 @@ interface LatestIndicator {
   p99_qty: number;
   score: number;
   signal: string | null;
+  tier?: "light" | "standard" | "heavy" | null;
+  factors?: {
+    direction?: { score?: number };
+    crowding?: { score?: number };
+    environment?: { score?: number };
+    confirmation?: { score?: number };
+    auxiliary?: { score?: number };
+  } | null;
+}
+
+interface MarketIndicatorValue {
+  value: number;
+  ts: number;
+}
+
+interface MarketIndicatorSet {
+  long_short_ratio?: MarketIndicatorValue;
+  top_trader_position?: MarketIndicatorValue;
+  open_interest_hist?: MarketIndicatorValue;
+  coinbase_premium?: MarketIndicatorValue;
 }
 
 const WINDOWS = [
@@ -57,6 +77,75 @@ function fmt(v: number, decimals = 1): string {
   return v.toFixed(decimals);
 }
 
+function pct(v: number, digits = 1): string {
+  return `${(v * 100).toFixed(digits)}%`;
+}
+
+function LayerScore({ label, score, max, colorClass }: { label: string; score: number; max: number; colorClass: string }) {
+  const ratio = Math.max(0, Math.min((score / max) * 100, 100));
+  return (
+    <div className="space-y-1">
+      <div className="flex items-center justify-between text-xs text-slate-600">
+        <span>{label}</span>
+        <span className="font-mono">{score}/{max}</span>
+      </div>
+      <div className="h-1.5 rounded-full bg-slate-100 overflow-hidden">
+        <div className={`h-full ${colorClass}`} style={{ width: `${ratio}%` }} />
+      </div>
+    </div>
+  );
+}
+
+function MarketIndicatorsCards({ symbol }: { symbol: Symbol }) {
+  const [data, setData] = useState<MarketIndicatorSet | null>(null);
+
+  useEffect(() => {
+    const fetch = async () => {
+      try {
+        const res = await authFetch("/api/signals/market-indicators");
+        if (!res.ok) return;
+        const json = await res.json();
+        setData(json[symbol] || null);
+      } catch {}
+    };
+    fetch();
+    const iv = setInterval(fetch, 5000);
+    return () => clearInterval(iv);
+  }, [symbol]);
+
+  if (!data) return <div className="text-center text-slate-400 text-sm py-3">等待市场指标数据...</div>;
+
+  const ls = Number(data.long_short_ratio?.value ?? 1);
+  const top = Number(data.top_trader_position?.value ?? 0.5);
+  const oi = Number(data.open_interest_hist?.value ?? 0);
+  const premium = Number(data.coinbase_premium?.value ?? 0);
+
+  return (
+    <div className="grid grid-cols-2 lg:grid-cols-4 gap-2">
+      <div className="bg-white rounded-xl border border-slate-200 p-3">
+        <p className="text-xs text-slate-400">多空比 (L/S)</p>
+        <p className="text-sm text-slate-800 mt-1">Long: {(ls / (1 + ls) * 100).toFixed(1)}%</p>
+        <p className="text-sm text-slate-600">Short: {(100 - (ls / (1 + ls) * 100)).toFixed(1)}%</p>
+      </div>
+      <div className="bg-white rounded-xl border border-slate-200 p-3">
+        <p className="text-xs text-slate-400">大户持仓</p>
+        <p className="text-sm text-slate-800 mt-1">大户做多: {(top * 100).toFixed(1)}%</p>
+        <p className="text-sm text-slate-600">方向: {top >= 0.55 ? "多头占优" : top <= 0.45 ? "空头占优" : "中性"}</p>
+      </div>
+      <div className="bg-white rounded-xl border border-slate-200 p-3">
+        <p className="text-xs text-slate-400">OI变化</p>
+        <p className="text-sm text-slate-800 mt-1">{pct(oi, 2)}</p>
+        <p className="text-sm text-slate-600">活跃度: {oi >= 0.03 ? "高" : oi > 0 ? "中" : "低"}</p>
+      </div>
+      <div className="bg-white rounded-xl border border-slate-200 p-3">
+        <p className="text-xs text-slate-400">Coinbase Premium</p>
+        <p className={`text-sm mt-1 ${premium >= 0 ? "text-emerald-600" : "text-red-500"}`}>{premium >= 0 ? "+" : ""}{pct(premium, 2)}</p>
+        <p className="text-sm text-slate-600">机构: {premium > 0.0005 ? "偏多" : premium < -0.0005 ? "偏空" : "中性"}</p>
+      </div>
+    </div>
+  );
+}
+
 // ─── 实时指标卡片 ────────────────────────────────────────────────
 
 function IndicatorCards({ symbol }: { symbol: Symbol }) {
@@ -149,8 +238,8 @@ function IndicatorCards({ symbol }: { symbol: Symbol }) {
         </div>
       </div>
 
-      {/* 信号状态 */}
-      <div className={`rounded-lg border p-3 ${
+      {/* 信号状态（V5.1） */}
+      <div className={`rounded-xl border p-3 ${
         data.signal === "LONG" ? "border-emerald-300 bg-emerald-50" :
         data.signal === "SHORT" ? "border-red-300 bg-red-50" :
         "border-slate-200 bg-slate-50"
@@ -167,12 +256,20 @@ function IndicatorCards({ symbol }: { symbol: Symbol }) {
             </p>
           </div>
           <div className="text-right">
-            <p className="text-xs text-slate-500">加分</p>
-            <p className="font-mono font-bold text-slate-800">{data.score}/60</p>
+            <p className="text-xs text-slate-500">总分</p>
+            <p className="font-mono font-bold text-slate-800">{data.score}/100</p>
+            <p className="text-xs text-slate-500 mt-0.5">档位: {data.tier === "heavy" ? "加仓" : data.tier === "standard" ? "标准" : data.tier === "light" ? "轻仓" : "不开仓"}</p>
           </div>
         </div>
+        <div className="mt-3 space-y-2">
+          <LayerScore label="方向层" score={Number(data.factors?.direction?.score ?? 0)} max={45} colorClass="bg-blue-600" />
+          <LayerScore label="拥挤层" score={Number(data.factors?.crowding?.score ?? 0)} max={20} colorClass="bg-violet-600" />
+          <LayerScore label="环境层" score={Number(data.factors?.environment?.score ?? 0)} max={15} colorClass="bg-emerald-600" />
+          <LayerScore label="确认层" score={Number(data.factors?.confirmation?.score ?? 0)} max={15} colorClass="bg-amber-500" />
+          <LayerScore label="辅助层" score={Number(data.factors?.auxiliary?.score ?? 0)} max={5} colorClass="bg-slate-500" />
+        </div>
         {data.signal && (
-          <div className="mt-2 grid grid-cols-3 gap-2 text-xs">
+          <div className="mt-2 grid grid-cols-3 gap-2 text-xs text-slate-600">
             <span>{core1} CVD_fast方向</span>
             <span>{core2} CVD_mid方向</span>
             <span>{core3} VWAP位置</span>
@@ -275,8 +372,8 @@ export default function SignalsPage() {
       {/* 标题 */}
       <div className="flex items-center justify-between flex-wrap gap-2">
         <div>
-          <h1 className="text-xl font-bold text-slate-900">V5 信号引擎</h1>
-          <p className="text-slate-500 text-xs mt-0.5">CVD三轨 + ATR + VWAP + 大单阈值 → 做多/做空信号</p>
+          <h1 className="text-xl font-bold text-slate-900">V5.1 信号引擎</h1>
+          <p className="text-slate-500 text-xs mt-0.5">五层100分评分 + 市场拥挤度 + 环境确认</p>
         </div>
         <div className="flex gap-1.5">
           {(["BTC", "ETH"] as Symbol[]).map(s => (
@@ -291,6 +388,12 @@ export default function SignalsPage() {
       {/* 实时指标卡片 */}
       <IndicatorCards symbol={symbol} />
 
+      {/* Market Indicators */}
+      <div className="rounded-xl border border-slate-200 bg-white p-3">
+        <h3 className="font-semibold text-slate-800 text-sm mb-2">Market Indicators</h3>
+        <MarketIndicatorsCards symbol={symbol} />
+      </div>
+
       {/* CVD三轨图 */}
       <div className="rounded-xl border border-slate-200 bg-white shadow-sm overflow-hidden">
         <div className="px-4 py-3 border-b border-slate-100 flex items-center justify-between flex-wrap gap-2">
@@ -313,9 +416,9 @@ export default function SignalsPage() {
       </div>
 
       {/* 说明 */}
-      <div className="rounded-lg border border-blue-100 bg-blue-50 px-4 py-3 text-xs text-slate-600 space-y-1">
-        <p><span className="text-blue-600 font-medium">信号逻辑：</span>CVD_fast方向 + CVD_mid方向 + VWAP位置 = 核心3条件。加分：ATR扩张(+25) + 无反向大单(+20) + 资金费率(+15)。</p>
-        <p><span className="text-blue-600 font-medium">仓位：</span>0-15分→2%仓 / 20-40分→5%仓 / 45-60分→8%仓。冷却10分钟，时间止损30分钟。</p>
+      <div className="rounded-xl border border-blue-100 bg-blue-50 px-4 py-3 text-xs text-slate-700 space-y-1">
+        <p><span className="text-blue-600 font-medium">V5.1评分逻辑：</span>方向层45分 + 拥挤层20分 + 环境层15分 + 确认层15分 + 辅助层5分（方向加速可额外+5）。</p>
+        <p><span className="text-blue-600 font-medium">开仓档位：</span>&lt;60不开仓，60-74轻仓，75-84标准仓位，≥85允许加仓；信号冷却10分钟。</p>
       </div>
     </div>
   );