diff --git a/manual_trading_hub/static/chart.js b/manual_trading_hub/static/chart.js
index 18e1e73..bb4d7cc 100644
--- a/manual_trading_hub/static/chart.js
+++ b/manual_trading_hub/static/chart.js
@@ -196,12 +196,38 @@
     if (elBarCountdown) elBarCountdown.textContent = "距收盘 " + cd;
   }
 
+  function getBarSpacing(ts) {
+    if (!ts) return 6;
+    try {
+      if (typeof ts.barSpacing === "function") {
+        const v = ts.barSpacing();
+        if (Number.isFinite(v) && v > 0) return v;
+      }
+    } catch (e) {}
+    try {
+      if (typeof ts.options === "function") {
+        const opts = ts.options();
+        const v = opts && opts.barSpacing;
+        if (Number.isFinite(v) && v > 0) return v;
+      }
+    } catch (e) {}
+    try {
+      const x0 = ts.logicalToCoordinate(0);
+      const x1 = ts.logicalToCoordinate(1);
+      if (x0 != null && x1 != null) {
+        const d = Math.abs(x1 - x0);
+        if (Number.isFinite(d) && d > 0) return d;
+      }
+    } catch (e) {}
+    return 6;
+  }
+
   function priceTagX() {
     if (!chart || !lastCandles.length) return null;
     const bar = latestCandle();
     if (!bar) return null;
     const ts = chart.timeScale();
-    const spacing = ts.barSpacing();
+    const spacing = getBarSpacing(ts);
     const hostW = chartHost.clientWidth || 0;
     let x = null;
     try {
@@ -227,34 +253,39 @@
 
   function updatePriceTag() {
     if (!elPriceTag || !candleSeries || !chart) return;
-    tickLiveClock();
-    const bar = latestCandle();
-    if (!bar || bar.close == null) {
-      elPriceTag.classList.add("hidden");
-      elPriceTag.setAttribute("aria-hidden", "true");
-      return;
-    }
-    let y = null;
     try {
-      y = candleSeries.priceToCoordinate(Number(bar.close));
+      tickLiveClock();
+      const bar = latestCandle();
+      if (!bar || bar.close == null) {
+        elPriceTag.classList.add("hidden");
+        elPriceTag.setAttribute("aria-hidden", "true");
+        return;
+      }
+      let y = null;
+      try {
+        y = candleSeries.priceToCoordinate(Number(bar.close));
+      } catch (e) {
+        y = null;
+      }
+      const x = priceTagX();
+      const hostH = chartHost.clientHeight || 0;
+      const hostW = chartHost.clientWidth || 0;
+      if (y == null || x == null || y < 8 || y > hostH - 8 || x < 8 || x > hostW - 8) {
+        elPriceTag.classList.add("hidden");
+        elPriceTag.setAttribute("aria-hidden", "true");
+        return;
+      }
+      const up = Number(bar.close) >= Number(bar.open);
+      elPriceTag.classList.remove("hidden", "is-up", "is-down");
+      elPriceTag.classList.add(up ? "is-up" : "is-down");
+      elPriceTag.setAttribute("aria-hidden", "false");
+      elPriceTag.style.left = x + "px";
+      elPriceTag.style.top = y + "px";
+      if (elPriceTagValue) elPriceTagValue.textContent = fmtPrice(bar.close);
     } catch (e) {
-      y = null;
-    }
-    const x = priceTagX();
-    const hostH = chartHost.clientHeight || 0;
-    const hostW = chartHost.clientWidth || 0;
-    if (y == null || x == null || y < 8 || y > hostH - 8 || x < 8 || x > hostW - 8) {
       elPriceTag.classList.add("hidden");
       elPriceTag.setAttribute("aria-hidden", "true");
-      return;
     }
-    const up = Number(bar.close) >= Number(bar.open);
-    elPriceTag.classList.remove("hidden", "is-up", "is-down");
-    elPriceTag.classList.add(up ? "is-up" : "is-down");
-    elPriceTag.setAttribute("aria-hidden", "false");
-    elPriceTag.style.left = x + "px";
-    elPriceTag.style.top = y + "px";
-    if (elPriceTagValue) elPriceTagValue.textContent = fmtPrice(bar.close);
   }
 
   function startPriceTagTimer() {
diff --git a/manual_trading_hub/static/index.html b/manual_trading_hub/static/index.html
index fed78ca..c8ccda8 100644
--- a/manual_trading_hub/static/index.html
+++ b/manual_trading_hub/static/index.html
@@ -190,7 +190,7 @@
 
   <div id="toast"></div>
   <script src="https://unpkg.com/lightweight-charts@4.2.0/dist/lightweight-charts.standalone.production.js"></script>
-  <script src="/assets/chart.js?v=20260528-hub-market9"></script>
-  <script src="/assets/app.js?v=20260528-hub-market9"></script>
+  <script src="/assets/chart.js?v=20260528-hub-market10"></script>
+  <script src="/assets/app.js?v=20260528-hub-market10"></script>
 </body>
 </html>