diff --git a/src/components/PnlCurveCard.vue b/src/components/PnlCurveCard.vue
index 588ea50..2777afd 100644
--- a/src/components/PnlCurveCard.vue
+++ b/src/components/PnlCurveCard.vue
@@ -50,6 +50,7 @@ import {
   LineType,
   type IChartApi,
   type ISeriesApi,
+  type UTCTimestamp,
 } from 'lightweight-charts'
 import {
   PNL_CURVE_RANGES,
@@ -77,6 +78,20 @@ let chartSeries: ISeriesApi<'Area'> | null = null
 const LINE_UP = '#2E5CFF'
 const LINE_DOWN = '#dc2626'
 
+/** 与 toLwcData 一致：把毫秒时间戳转为图表本地显示用的 UTCTimestamp */
+function toChartTime(tsMs: number): UTCTimestamp {
+  const d = new Date(tsMs)
+  return (Date.UTC(
+    d.getFullYear(),
+    d.getMonth(),
+    d.getDate(),
+    d.getHours(),
+    d.getMinutes(),
+    d.getSeconds(),
+    d.getMilliseconds(),
+  ) / 1000) as UTCTimestamp
+}
+
 function seriesColors(pnl: number) {
   const color = pnl >= 0 ? LINE_UP : LINE_DOWN
   return {
@@ -105,7 +120,21 @@ async function loadCurve() {
     if (chartSeries) {
       chartSeries.applyOptions(seriesColors(currentPnl.value))
       chartSeries.setData(toLwcData(points))
-      chartInstance?.timeScale().fitContent()
+      const startTs = data.startTs
+      const endTs = data.endTs
+      if (
+        chartInstance &&
+        Number.isFinite(startTs) &&
+        Number.isFinite(endTs) &&
+        endTs > startTs
+      ) {
+        chartInstance.timeScale().setVisibleRange({
+          from: toChartTime(startTs),
+          to: toChartTime(endTs),
+        })
+      } else {
+        chartInstance?.timeScale().fitContent()
+      }
     }
   } catch (e) {
     const msg = e instanceof Error ? e.message : t('wallet.pnlCurve.loadFailed')
@@ -125,7 +154,7 @@ function initChart() {
   const el = chartRef.value
   chartInstance = createChart(el, {
     width: el.clientWidth,
-    height: 140,
+    height: 160,
     layout: {
       background: { color: '#ffffff' },
       textColor: '#9ca3af',
@@ -136,7 +165,12 @@ function initChart() {
     grid: { vertLines: { visible: false }, horzLines: { visible: false } },
     leftPriceScale: { visible: false },
     rightPriceScale: { visible: false, borderVisible: false },
-    timeScale: { visible: false, borderVisible: false },
+    timeScale: {
+      visible: true,
+      borderVisible: false,
+      timeVisible: true,
+      secondsVisible: false,
+    },
     handleScroll: false,
     handleScale: false,
     crosshair: {
@@ -157,7 +191,7 @@ function initChart() {
 
 function handleResize() {
   if (chartInstance && chartRef.value) {
-    chartInstance.resize(chartRef.value.clientWidth, 140)
+    chartInstance.resize(chartRef.value.clientWidth, 160)
   }
 }
 
@@ -283,7 +317,7 @@ onUnmounted(() => {
 .pnl-chart {
   position: relative;
   width: 100%;
-  height: 140px;
+  height: 160px;
   margin-top: auto;
 }