ViewModels/D7896ViewModel.cs

@@ -706,11 +706,20 @@ public partial class D7896ViewModel : ObservableObject
             TemperatureCurveModel.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Title = "温升 (℃)" });
         }
 
-        // 加热段曲线（红色）
+        // 根据当前测量索引计算色相 (0 ~ 1)
+        double hue = ((CurrentMeasurementIndex - 1) % 10) / 10.0;   // 0, 0.1, 0.2 ... 0.9
+                                                                    // 加热曲线颜色：饱和度0.9，亮度0.8
+        var heatColor = OxyColor.FromHsv(hue, 0.9, 0.8);
+        // 冷却曲线颜色：色相偏移0.5（互补色），饱和度0.6，亮度0.8（较淡）
+        double coolHue = hue + 0.5;
+        if (coolHue >= 1.0) coolHue -= 1.0;
+        var coolColor = OxyColor.FromHsv(coolHue, 0.6, 0.8);
+
+        // 加热段曲线（红色系实线）
         var heatingSeries = new LineSeries
         {
-            Title = $"第{CurrentMeasurementIndex}次测量 - 加热段",
-            Color = OxyColors.Red,
+            Title = $"第{CurrentMeasurementIndex}次 - 加热",
+            Color = heatColor,
             StrokeThickness = 1.5
         };
         for (int i = 0; i < time.Length && time[i] <= 1.0; i++)
@@ -719,13 +728,13 @@ public partial class D7896ViewModel : ObservableObject
         }
         TemperatureCurveModel.Series.Add(heatingSeries);
 
-        // 冷却曲线（蓝色虚线）
+        // 冷却曲线（互补色，虚线）
         if (coolingPoints != null && coolingPoints.Count > 0)
         {
             var coolingSeries = new LineSeries
             {
-                Title = $"第{CurrentMeasurementIndex}次测量 - 冷却段",
-                Color = OxyColors.Blue,
+                Title = $"第{CurrentMeasurementIndex}次 - 冷却",
+                Color = coolColor,
                 StrokeThickness = 1.5,
                 LineStyle = LineStyle.Dash
             };