结构大修改，改成朴实无华的结构，不过度架构。能跑就行

Assets/Scripts/NBC/Language/Runtime/LanguageConfig.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using Newtonsoft.Json.Linq;
+
+namespace NBC
+{
+    public struct LanguageFontConfig
+    {
+        public string Type;
+        public string Name;
+        public string RelativePath;
+    }
+
+    public class LanguageConfig
+    {
+        public string Key;
+        private readonly Dictionary<string, string> _languages = new Dictionary<string, string>();
+
+        public string this[string key] => _languages.GetValueOrDefault(key, key);
+
+        public Dictionary<string, string>.KeyCollection Keys => _languages.Keys;
+
+        public void Parse(JToken row)
+        {
+            Key = row["key"].ToString();
+            var children = row.Children();
+            foreach (var child in children)
+            {
+                if (child is not JProperty property) continue;
+                if (property.Name == "key") continue;
+                _languages[property.Name] = property.Value.ToString();
+            }
+        }
+    }
+}