fix(huoshan): 收紧辉光管绘制区域避免轻微溢出

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

Assets/Scripts/MiniGame/HuoShan/SalesSystem/GlowTubeEffect.cs

@@ -15,6 +15,10 @@ namespace AibisDream.MiniGame.HuoShan
         [Tooltip("效果区域参考（取其 SpriteRenderer bounds），不填则用自身")]
         [SerializeField] private SpriteRenderer areaReference;
 
+        [Tooltip("相对参考区域向内收缩比例，避免辉光贴满边框轻微溢出")]
+        [Range(0f, 0.2f)]
+        [SerializeField] private float areaInset = 0.04f;
+
         [Header("像素网格")]
         [Tooltip("横向像素格数（纵向按区域纵横比自动推算）")]
         [SerializeField] private int pixelColumns = 72;
@@ -201,7 +205,10 @@ namespace AibisDream.MiniGame.HuoShan
             if (reference != null)
             {
                 var b = reference.bounds;
-                _areaHalfSize = new Vector2(Mathf.Max(0.01f, b.extents.x), Mathf.Max(0.01f, b.extents.y));
+                float inset = 1f - Mathf.Clamp01(areaInset);
+                _areaHalfSize = new Vector2(
+                    Mathf.Max(0.01f, b.extents.x * inset),
+                    Mathf.Max(0.01f, b.extents.y * inset));
             }
         }
 
@@ -340,7 +347,8 @@ namespace AibisDream.MiniGame.HuoShan
             float x = Random.value < sparkEdgeBias
                 ? Mathf.Max(0f, _fill - Random.value * edgeHotWidth * 0.8f) // 前沿迸溅
                 : Random.value * _fill;
-            float y = 0.5f + (Random.value - 0.5f) * 0.75f;
+            // 略收纵向散布，避免火花贴边后冲出管体外框
+            float y = 0.5f + (Random.value - 0.5f) * 0.62f;
 
             float outward = y >= 0.5f ? 1f : -1f;
             float life = Mathf.Max(0.05f, sparkLife * (0.55f + Random.value * 0.9f));
@@ -351,7 +359,7 @@ namespace AibisDream.MiniGame.HuoShan
                 Y = y,
                 // 略偏左：被抑制的方向
                 VX = (Random.value - 0.5f) * 0.55f - 0.12f,
-                VY = outward * (0.3f + Random.value * 1.1f),
+                VY = outward * (0.22f + Random.value * 0.85f),
                 Life = life,
                 MaxLife = life
             };
@@ -432,7 +440,7 @@ namespace AibisDream.MiniGame.HuoShan
 
                 // 每行前沿单独抖动：右端像火焰一样翻腾，而不是一条硬边
                 float boilN = Mathf.PerlinNoise(py * 0.35f + _seedY, _time * 6f) - 0.5f;
-                float fillEdge = _fill + boilN * edgeBoil * 2f;
+                float fillEdge = Mathf.Min(1f, _fill + boilN * edgeBoil * 2f);
 
                 for (int px = 0; px < w; px++)
                 {