更新

Assets/Scripts/MainGame/Card/CardView/CardViewFunctions.cs

@@ -43,6 +43,46 @@ namespace Continentis.MainGame.Card
             }
         }
 
+        /// <summary>
+        /// 根据颜色智能更新提示阴影：null 关闭，非 null 启用对应颜色。
+        /// 避免相同颜色重复 tween 导致闪烁。
+        /// </summary>
+        public void UpdateHintShadow(Color? color)
+        {
+            if (color == null)
+            {
+                if (hintShadow.gameObject.activeSelf)
+                {
+                    DisableHintShadow();
+                }
+                return;
+            }
+
+            Color targetColor = color.Value;
+
+            if (hintShadow.gameObject.activeSelf)
+            {
+                // 已启用：仅在颜色差异足够大时 tween，避免每帧闪烁
+                if (!ApproximatelyEqualColor(hintShadow.color, targetColor))
+                {
+                    hintShadowTweener?.Kill();
+                    hintShadowTweener = hintShadow.DOColor(targetColor, 0.2f).Play();
+                }
+            }
+            else
+            {
+                EnableHintShadow(targetColor);
+            }
+        }
+
+        private static bool ApproximatelyEqualColor(Color a, Color b, float tolerance = 0.01f)
+        {
+            return Mathf.Abs(a.r - b.r) < tolerance
+                && Mathf.Abs(a.g - b.g) < tolerance
+                && Mathf.Abs(a.b - b.b) < tolerance
+                && Mathf.Abs(a.a - b.a) < tolerance;
+        }
+
         public void EnableSelectShadow()
         {
             selectShadow.gameObject.SetActive(true);