art(fixsystem): 调整物理线缆色阶与高光参数

Co-authored-by: Cursor <cursoragent@cursor.com>

Assets/Scripts/FixSystemNew/Cable/PhysicCable.cs

@@ -68,17 +68,17 @@ public class PhysicCable : MonoBehaviour
     [SerializeField] private string sortingLayerName = "Tools";
     [SerializeField] private int sortingOrder = 47;
     // 7/7 PixelCableLine step 色阶: Edge → Band Dark → Band Light
-    // 体色 #00335f;暗部微偏红、亮部微偏黄(贴近 PS 暖调体积),高光约 75% 强度
-    [SerializeField] private Color darkColor = new(0.032f, 0.085f, 0.155f, 1f);   // 暗面偏暖红
-    [SerializeField] private float darkWidth = 0.32f;
-    [SerializeField] private Color bodyColor = new(0f, 0.2f, 0.373f, 1f);         // #00335f
-    [SerializeField] private float bodyWidth = 0.26f;
-    [SerializeField] private Color midColor = new(0.038f, 0.238f, 0.345f, 1f);   // 中间调微偏黄
-    [SerializeField] private float midWidth = 0.082f;
-    [SerializeField] private float midLift = 0.015f;
-    [SerializeField] private Color highlightColor = new(0.056f, 0.248f, 0.298f, 1f); // ≈75% 叠在 mid 上的暖高光
-    [SerializeField] private float highlightWidth = 0.02f;
-    [SerializeField] private float highlightLift = 0.015f;
+    // 暗面轻微偏红、亮面轻微偏黄；反光保持克制，避免线缆体积感过强。
+    [SerializeField] private Color darkColor = new(0.02f, 0.05f, 0.09f, 1f);    // Edge Outline，微偏红
+    [SerializeField] private float darkWidth = 0.33f;       // 原型:w+4
+    [SerializeField] private Color bodyColor = new(0.035f, 0.135f, 0.19f, 1f);  // Band Dark
+    [SerializeField] private float bodyWidth = 0.26f;       // 原型:w=15px ≈ 0.26wu
+    [SerializeField] private Color midColor = new(0.095f, 0.255f, 0.275f, 1f);  // Band Light，微偏黄
+    [SerializeField] private float midWidth = 0.10f;         // 收窄中亮面，减弱体积感
+    [SerializeField] private float midLift = 0.028f;
+    [SerializeField] private Color highlightColor = new(0.18f, 0.32f, 0.30f, 0.75f); // 高光透明度降低 25%
+    [SerializeField] private float highlightWidth = 0.04f;
+    [SerializeField] private float highlightLift = 0.05f;
 
     [Header("端部收窄(默认关闭:整根线宽与插头/孔匹配)")]
     [SerializeField, Range(0f, 0.3f)] private float tipTaperFraction = 0f;  // 末端收窄段占全长比例,0 关闭