diff --git a/klp-ui/src/views/micro/pages/acid/components/ActualPerformance.vue b/klp-ui/src/views/micro/pages/acid/components/ActualPerformance.vue
index 0dd276861..f421d9969 100644
--- a/klp-ui/src/views/micro/pages/acid/components/ActualPerformance.vue
+++ b/klp-ui/src/views/micro/pages/acid/components/ActualPerformance.vue
@@ -323,19 +323,20 @@ const GAUGE_DEV_RANGE = { min: -5, max: 5 }
  * yAxisSuffix: 纵轴标签后缀，如 '%'
  * yRange: 可选 { min, max }，不传则按全量数据自适应
  */
-function makeLine(title, xData, yData, extras = [], yAxisSuffix = '', yRange = null) {
+function makeLine(title, xData, yData, extras = [], yAxisSuffix = '', yRange = null, xAxisOpts = null) {
   const allVals = [yData, ...extras.map(e => e.data)].flat()
   const range = yRange || calcYRange(allVals)
   const hasExtras = extras.length > 0
+  const toSeriesData = arr => xAxisOpts ? xData.map((x, i) => [x, arr[i]]) : arr
   const mainSeries = {
     name: title, type: 'line', smooth: false, symbol: 'none',
-    lineStyle: { width: 1.5, color: '#409EFF' }, data: yData, z: 3
+    lineStyle: { width: 1.5, color: '#409EFF' }, data: toSeriesData(yData), z: 3
   }
   const extraSeries = extras.map(e => ({
     name: e.name,
     type: 'line', smooth: false, symbol: 'none',
     lineStyle: { width: 1, color: e.color || '#E6A23C', type: e.dash !== false ? 'dashed' : 'solid' },
-    data: e.data, z: 2
+    data: toSeriesData(e.data), z: 2
   }))
   return {
     title: { text: title, textStyle: { fontSize: 12, fontWeight: 'normal' }, top: 4, left: 8 },
@@ -350,10 +351,15 @@ function makeLine(title, xData, yData, extras = [], yAxisSuffix = '', yRange = n
         : undefined
     },
     grid: { top: hasExtras ? 44 : 36, bottom: 28, left: 8, right: 16, containLabel: true },
-    xAxis: {
-      type: 'category', data: xData,
-      name: 'pos(m)', nameTextStyle: { fontSize: 10 }, axisLabel: { fontSize: 10 }
-    },
+    xAxis: xAxisOpts
+      ? {
+          type: 'value', min: xAxisOpts.min, interval: xAxisOpts.interval,
+          name: 'pos(m)', nameTextStyle: { fontSize: 10 }, axisLabel: { fontSize: 10 }
+        }
+      : {
+          type: 'category', data: xData,
+          name: 'pos(m)', nameTextStyle: { fontSize: 10 }, axisLabel: { fontSize: 10 }
+        },
     yAxis: {
       type: 'value', min: range.min, max: range.max,
       nameTextStyle: { fontSize: 10 },
@@ -382,6 +388,16 @@ function xLocData(rows) {
   })
 }
 
+function xLocNumData(rows) {
+  return rows.map(r => {
+    const v = r.XLOCATION !== undefined ? r.XLOCATION : r.xlocation
+    return v == null ? null : Number(v)
+  })
+}
+
+// 厚度曲线横坐标：从 0 开始，步长 500
+const GAUGE_X_AXIS_OPTS = { min: 0, interval: 500 }
+
 export default {
   name: 'ActualPerformance',
   components: { QualityReportDialog },
@@ -631,7 +647,7 @@ export default {
     renderGaugeCharts() {
       const rows = this.gaugeRows
       if (!rows || !rows.length) return
-      const xData = xLocData(rows)
+      const xData = xLocNumData(rows)
       // THICK0~THICK4 对应的参考列
       const refColMap = { THICK0: 'THICK0REF', THICK1: 'THICK1REF', THICK4: 'THICK4REF', THICK5: 'THICK5REF' }
       const chartRefs = ['chartGauge1', 'chartGauge2', 'chartGauge3', 'chartGauge4']
@@ -641,25 +657,14 @@ export default {
 
         if (refCol) {
           // ── 厚度偏差图：THICKx 即相对设定值的偏差%，纵轴直接画偏差、0 为基准 ──
-          // 实测数据验证（卷 26061045000）：THICK0 在 -3% 上下、THICK0REF=3.0mm，
-          // 与 L2 原生 HMI 一致——蓝色 0 线为设定值，曲线为实测偏差
           const yData = rows.map(r => {
             const v  = getRowVal(r, col)
             const rv = getRowVal(r, refCol)
             if (v == null || rv == null || rv === 0) return null
             return parseFloat(v.toFixed(3))
           })
-          // 设定值（绝对厚度 mm）：取首个非空 REF，写入标题
-          let refVal = null
-          for (const r of rows) {
-            const rv = getRowVal(r, refCol)
-            if (rv != null && rv !== 0) { refVal = rv; break }
-          }
-          const chartTitle = refVal != null ? `${title} - 设定值: ${refVal.toFixed(2)}[mm]` : title
-
+          const chartTitle = title
           const extras = []
-          // 设定基准线恒为 0
-          extras.push({ name: '设定值(0)', data: yData.map(v => v == null ? null : 0), color: '#909399', dash: false })
 
           // TOPLIMIT/BOTLIMIT 是冷轧机出口厚度的 AGC 公差带（逐行变化，
           // 头尾加减速段约 ±2.5%、稳态段收紧到约 ±1%），只约束出口厚度。
@@ -677,14 +682,14 @@ export default {
             if (upData.some(v => v != null)) extras.push({ name: '上限', data: upData, color: '#F56C6C', dash: true })
             if (loData.some(v => v != null)) extras.push({ name: '下限', data: loData, color: '#67C23A', dash: true })
           }
-          return this.makeChart(ref, makeLine(chartTitle, xData, yData, extras, '%', GAUGE_DEV_RANGE))
+          return this.makeChart(ref, makeLine(chartTitle, xData, yData, extras, '%', GAUGE_DEV_RANGE, GAUGE_X_AXIS_OPTS))
         } else {
           // ── 速度等无参考值的图：保持原始单位 ──
           const yData = rows.map(r => {
             const v = getRowVal(r, col)
             return v == null ? null : parseFloat(v.toFixed(4))
           })
-          return this.makeChart(ref, makeLine(title, xData, yData))
+          return this.makeChart(ref, makeLine(title, xData, yData, [], '', null, GAUGE_X_AXIS_OPTS))
         }
       })
       this.chartInstances = charts.filter(Boolean)