diff --git a/public/abpm-report-template.html b/public/abpm-report-template.html
index d1d1900..f88189d 100644
--- a/public/abpm-report-template.html
+++ b/public/abpm-report-template.html
@@ -2139,25 +2139,28 @@
                 const sumY = data.reduce((sum, point) => sum + point[1], 0);
                 const sumXY = data.reduce((sum, point) => sum + point[0] * point[1], 0);
                 const sumXX = data.reduce((sum, point) => sum + point[0] * point[0], 0);
-                
                 const slope = (n * sumXY - sumX * sumY) / (n * sumXX - sumX * sumX);
                 const intercept = (sumY - slope * sumX) / n;
-                
                 return { slope, intercept };
             };
-            
+            // 计算X轴最大值（向上取整到10的倍数）
+            function getAxisMax(arr) {
+                if (!arr || arr.length === 0) return 120;
+                const max = Math.max(...arr);
+                return Math.ceil(max / 10) * 10;
+            }
             // 收缩压与舒张压关系
             const bpChart = echarts.init(document.getElementById('scatter-bp-relation'));
             const bpData = chartDataTable.map(item => [item.diastolic, item.systolic]);
             const bpRegression = calculateLinearRegression(bpData);
-            
+            const bpXArr = chartDataTable.map(item => item.diastolic).filter(v => v != null && !isNaN(v));
+            const bpXAxisMax = getAxisMax(bpXArr);
             // 生成拟合线数据
             const bpFitLineData = [];
-            for (let x = 50; x <= 120; x += 10) {
+            for (let x = 40; x <= bpXAxisMax; x += 10) {
                 const y = bpRegression.slope * x + bpRegression.intercept;
                 bpFitLineData.push([x, y]);
             }
-            
             const bpOption = {
                 tooltip: { 
                     trigger: 'item',
@@ -2177,8 +2180,11 @@
                 xAxis: { 
                     type: 'value', 
                     name: '舒张压(mmHg)', 
-                    min: 50, 
-                    max: 120,
+                    min: 40, 
+                    max: bpXAxisMax,
+                    interval: 10,
+                    minorTick: { show: true, splitNumber: 5 },
+                    minorSplitLine: { show: false },
                     nameLocation: 'middle',
                     nameGap: 30,
                     axisLine: { show: true },
@@ -2219,19 +2225,18 @@
                 ]
             };
             bpChart.setOption(bpOption);
-            
             // 心率与收缩压关系
             const hrChart = echarts.init(document.getElementById('scatter-hr-relation'));
             const hrData = chartDataTable.map(item => [item.heartRate, item.systolic]);
             const hrRegression = calculateLinearRegression(hrData);
-            
+            const hrXArr = chartDataTable.map(item => item.heartRate).filter(v => v != null && !isNaN(v));
+            const hrXAxisMax = getAxisMax(hrXArr);
             // 生成拟合线数据
             const hrFitLineData = [];
-            for (let x = 50; x <= 120; x += 10) {
+            for (let x = 40; x <= hrXAxisMax; x += 10) {
                 const y = hrRegression.slope * x + hrRegression.intercept;
                 hrFitLineData.push([x, y]);
             }
-            
             const hrOption = {
                 tooltip: { 
                     trigger: 'item',
@@ -2251,8 +2256,11 @@
                 xAxis: { 
                     type: 'value', 
                     name: '心率(次/分)', 
-                    min: 50, 
-                    max: 120,
+                    min: 40, 
+                    max: hrXAxisMax,
+                    interval: 10,
+                    minorTick: { show: true, splitNumber: 5 },
+                    minorSplitLine: { show: false },
                     nameLocation: 'middle',
                     nameGap: 30,
                     axisLine: { show: true },