UI相关优化补充

Assets/_Game/Scripts/UI/Theme/UIThemeSO.cs

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+using UnityEngine;
+using TMPro;
+
+namespace BaseGames.UI.Theme
+{
+    /// <summary>
+    /// 全局 UI 主题资产（架构 10_UIModule §1 视觉风格统一）。
+    ///
+    /// 设计动机：避免每个 Prefab 各自硬编码颜色 / 字体，统一替换或本地化主题成本极低。
+    /// 通过 <see cref="UIThemeApplier"/> 在运行时拉取并应用到子节点。
+    ///
+    /// 资产路径建议：Assets/Data/UI/Themes/UI_Theme_Default.asset
+    /// </summary>
+    [CreateAssetMenu(menuName = "BaseGames/UI/Theme")]
+    public class UIThemeSO : ScriptableObject
+    {
+        [Header("Palette")]
+        public Color Primary    = new Color(0.10f, 0.55f, 0.95f);
+        public Color Secondary  = new Color(0.20f, 0.20f, 0.25f);
+        public Color Accent     = new Color(1.00f, 0.78f, 0.20f);
+        public Color Background = new Color(0.06f, 0.07f, 0.10f);
+        public Color TextPrimary   = Color.white;
+        public Color TextSecondary = new Color(0.75f, 0.78f, 0.82f);
+        public Color TextDisabled  = new Color(0.40f, 0.42f, 0.45f);
+        public Color Success = new Color(0.30f, 0.85f, 0.45f);
+        public Color Warning = new Color(0.95f, 0.70f, 0.10f);
+        public Color Danger  = new Color(0.95f, 0.30f, 0.30f);
+
+        [Header("Typography")]
+        public TMP_FontAsset HeaderFont;
+        public TMP_FontAsset BodyFont;
+        [Min(8)] public float HeaderFontSize = 36f;
+        [Min(8)] public float BodyFontSize   = 20f;
+        [Min(8)] public float SmallFontSize  = 14f;
+
+        [Header("Button States")]
+        public Color ButtonNormal      = new Color(0.10f, 0.55f, 0.95f);
+        public Color ButtonHighlighted = new Color(0.20f, 0.65f, 1.00f);
+        public Color ButtonPressed     = new Color(0.05f, 0.40f, 0.80f);
+        public Color ButtonDisabled    = new Color(0.30f, 0.30f, 0.32f);
+
+        [Header("Audio (可选)")]
+        public AudioClip ClickSound;
+        public AudioClip HoverSound;
+    }
+}