diff --git a/Assets/Scripts/SaveSystem/ISnapshotProvider.cs b/Assets/Scripts/SaveSystem/ISnapshotProvider.cs
index 459f708f5..1a2fad042 100644
--- a/Assets/Scripts/SaveSystem/ISnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/ISnapshotProvider.cs
@@ -1,13 +1,12 @@
-using System.Collections;
+using System;
+using System.Collections;
+using UnityEngine;
 
 namespace AibisDream.SaveSystem
 {
     /// <summary>
-    /// 快照提供者契约：将某一子系统的运行时状态与纯数据 DTO 互相转换。
-    /// <para>
-    /// 设计约定：DTO 不含事件、协程或 Unity 引用；<see cref="Capture"/> 只读，
-    /// <see cref="Restore"/> 负责逐项写回。实现类通常很薄，实际逻辑在各 Manager 中。
-    /// </para>
+    /// 快照提供者契约：将某一子系统的运行时状态转换为纯数据 DTO。
+    /// 还原侧由同步 / 异步子接口显式声明，避免 Provider 内部 fire-and-forget。
     /// </summary>
     public interface ISnapshotProvider
     {
@@ -18,14 +17,62 @@ namespace AibisDream.SaveSystem
         string SaveId { get; }
 
         /// <summary>
-        /// 读档还原顺序。数值越小越先执行（如 scene=10 先于 actor=40）。
+        /// 同阶段内的读档还原顺序。数值越小越先执行。
         /// </summary>
         int RestoreOrder { get; }
 
         /// <summary>从当前运行时捕获该子系统的快照 DTO；无可存内容时可返回 null。</summary>
         object Capture();
+    }
 
-        /// <summary>将 DTO 逐项还原到运行时；可为协程以等待异步加载。</summary>
-        IEnumerator Restore(object dto);
+    /// <summary>
+    /// 同步快照还原 Provider。实现中不得启动 fire-and-forget 协程。
+    /// </summary>
+    public interface ISyncSnapshotProvider : ISnapshotProvider
+    {
+        void Restore(object dto, SnapshotRestoreContext context);
+    }
+
+    /// <summary>
+    /// 异步快照还原 Provider。所有必须等待的加载 / 状态切换须通过此协程暴露给编排层。
+    /// </summary>
+    public interface IAsyncSnapshotProvider : ISnapshotProvider
+    {
+        IEnumerator RestoreAsync(object dto, SnapshotRestoreContext context);
+    }
+
+    /// <summary>
+    /// 单次读档还原流程上下文。
+    /// </summary>
+    public sealed class SnapshotRestoreContext
+    {
+        public SnapshotRestoreContext(SaveSnapshot snapshot, bool strictMode = false, Action<string> logStep = null)
+        {
+            Snapshot = snapshot;
+            StrictMode = strictMode;
+            LogStep = logStep;
+        }
+
+        public SaveSnapshot Snapshot { get; }
+        public bool StrictMode { get; }
+        public Action<string> LogStep { get; }
+
+        public void Log(string message)
+        {
+            LogStep?.Invoke(message);
+            Debug.Log($"[SnapshotRestore] {message}");
+        }
+
+        public void Warn(string message)
+        {
+            LogStep?.Invoke($"WARN: {message}");
+            Debug.LogWarning($"[SnapshotRestore] {message}");
+        }
+
+        public void Error(string message)
+        {
+            LogStep?.Invoke($"ERROR: {message}");
+            Debug.LogError($"[SnapshotRestore] {message}");
+        }
     }
 }
diff --git a/Assets/Scripts/SaveSystem/Providers/ActorSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/ActorSnapshotProvider.cs
index cfd8b0f49..40ab832ce 100644
--- a/Assets/Scripts/SaveSystem/Providers/ActorSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/ActorSnapshotProvider.cs
@@ -1,4 +1,3 @@
-using System.Collections;
 using UnityEngine;
 
 namespace AibisDream.SaveSystem
@@ -7,7 +6,7 @@ namespace AibisDream.SaveSystem
     /// sections["actor"]：场景中各角色显隐、槽位、动画状态、透明度等（ActorManager）。
     /// RestoreOrder=40，依赖 scene 与 env 已就绪。
     /// </summary>
-    public class ActorSnapshotProvider : ISnapshotProvider
+    public class ActorSnapshotProvider : ISyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Actor;
         public int RestoreOrder => 40;
@@ -23,14 +22,21 @@ namespace AibisDream.SaveSystem
             return ActorManager.Instance.CaptureSnapshot();
         }
 
-        public IEnumerator Restore(object dto)
+        public void Restore(object dto, SnapshotRestoreContext context)
         {
             if (dto is not ActorSnapshotDto actors)
             {
-                yield break;
+                context.Warn("[ActorSnapshotProvider] DTO 类型不匹配，跳过还原。");
+                return;
             }
 
-            yield return ActorManager.Instance.RestoreSnapshot(actors);
+            if (ActorManager.Instance == null)
+            {
+                context.Warn("[ActorSnapshotProvider] ActorManager 未初始化，跳过还原。");
+                return;
+            }
+
+            ActorManager.Instance.RestoreSnapshot(actors);
         }
     }
 }
diff --git a/Assets/Scripts/SaveSystem/Providers/AudioSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/AudioSnapshotProvider.cs
index 984967e47..abf44e1b1 100644
--- a/Assets/Scripts/SaveSystem/Providers/AudioSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/AudioSnapshotProvider.cs
@@ -1,4 +1,3 @@
-using System.Collections;
 using AibisDream.Kit;
 using UnityEngine;
 
@@ -8,7 +7,7 @@ namespace AibisDream.SaveSystem
     /// sections["audio"]：FMOD 音乐/SFX 实例路径与 AMB 状态终态（AudioManager）。
     /// 不记录播放进度，读档后按路径重新 CreateInstance 并 start。
     /// </summary>
-    public class AudioSnapshotProvider : ISnapshotProvider
+    public class AudioSnapshotProvider : ISyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Audio;
         public int RestoreOrder => 50;
@@ -24,14 +23,21 @@ namespace AibisDream.SaveSystem
             return AudioManager.Instance.CaptureSnapshot();
         }
 
-        public IEnumerator Restore(object dto)
+        public void Restore(object dto, SnapshotRestoreContext context)
         {
             if (dto is not AudioSnapshotDto audio)
             {
-                yield break;
+                context.Warn("[AudioSnapshotProvider] DTO 类型不匹配，跳过还原。");
+                return;
             }
 
-            yield return AudioManager.Instance.RestoreSnapshot(audio);
+            if (AudioManager.Instance == null)
+            {
+                context.Warn("[AudioSnapshotProvider] AudioManager 未初始化，跳过还原。");
+                return;
+            }
+
+            AudioManager.Instance.RestoreSnapshot(audio);
         }
     }
 }
diff --git a/Assets/Scripts/SaveSystem/Providers/EnvironmentSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/EnvironmentSnapshotProvider.cs
index 54ae7175f..49582ced3 100644
--- a/Assets/Scripts/SaveSystem/Providers/EnvironmentSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/EnvironmentSnapshotProvider.cs
@@ -1,4 +1,3 @@
-using System.Collections;
 using UnityEngine;
 
 namespace AibisDream.SaveSystem
@@ -7,7 +6,7 @@ namespace AibisDream.SaveSystem
     /// sections["env"]：场景内时间/天气（EnvironmentManager）。
     /// RestoreOrder=20，在 scene 加载完成后、macro 之前还原环境。
     /// </summary>
-    public class EnvironmentSnapshotProvider : ISnapshotProvider
+    public class EnvironmentSnapshotProvider : ISyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Environment;
         public int RestoreOrder => 20;
@@ -23,14 +22,21 @@ namespace AibisDream.SaveSystem
             return EnvironmentManager.Instance.CaptureSnapshot();
         }
 
-        public IEnumerator Restore(object dto)
+        public void Restore(object dto, SnapshotRestoreContext context)
         {
             if (dto is not EnvironmentSnapshotDto env)
             {
-                yield break;
+                context.Warn("[EnvironmentSnapshotProvider] DTO 类型不匹配，跳过还原。");
+                return;
             }
 
-            yield return EnvironmentManager.Instance.RestoreSnapshot(env);
+            if (EnvironmentManager.Instance == null)
+            {
+                context.Warn("[EnvironmentSnapshotProvider] EnvironmentManager 未初始化，跳过还原。");
+                return;
+            }
+
+            EnvironmentManager.Instance.RestoreSnapshot(env);
         }
     }
 }
diff --git a/Assets/Scripts/SaveSystem/Providers/FixSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/FixSnapshotProvider.cs
index 163a655e5..d28467114 100644
--- a/Assets/Scripts/SaveSystem/Providers/FixSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/FixSnapshotProvider.cs
@@ -7,7 +7,7 @@ namespace AibisDream.SaveSystem
     /// sections["fix"]：Fix 场景宏观状态（FixStateMachine）。
     /// RestoreOrder=65，在 timeline(60) 之后、screen(70) 之前。
     /// </summary>
-    public class FixSnapshotProvider : ISnapshotProvider
+    public class FixSnapshotProvider : IAsyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Fix;
         public int RestoreOrder => 65;
@@ -23,16 +23,17 @@ namespace AibisDream.SaveSystem
             return FixSystem.FixSystemCenter.Instance.CaptureSnapshot();
         }
 
-        public IEnumerator Restore(object dto)
+        public IEnumerator RestoreAsync(object dto, SnapshotRestoreContext context)
         {
             if (dto is not FixSnapshotDto fix)
             {
+                context.Warn("[FixSnapshotProvider] DTO 类型不匹配，跳过还原。");
                 yield break;
             }
 
             if (FixSystem.FixSystemCenter.Instance == null)
             {
-                Debug.LogWarning("[FixSnapshotProvider] FixSystemCenter 未初始化，跳过还原。");
+                context.Warn("[FixSnapshotProvider] FixSystemCenter 未初始化，跳过还原。");
                 yield break;
             }
 
diff --git a/Assets/Scripts/SaveSystem/Providers/ScreenSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/ScreenSnapshotProvider.cs
index 6fba58af8..a3860323e 100644
--- a/Assets/Scripts/SaveSystem/Providers/ScreenSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/ScreenSnapshotProvider.cs
@@ -1,12 +1,10 @@
-using System.Collections;
-
 namespace AibisDream.SaveSystem
 {
     /// <summary>
     /// sections["screen"]：屏幕饱和度与演出淡入淡出遮罩。
     /// 委托 <see cref="ScreenSnapshotHelper"/>；RestoreOrder=70，通常在表现类最后还原。
     /// </summary>
-    public class ScreenSnapshotProvider : ISnapshotProvider
+    public class ScreenSnapshotProvider : ISyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Screen;
         public int RestoreOrder => 70;
@@ -16,15 +14,15 @@ namespace AibisDream.SaveSystem
             return ScreenSnapshotHelper.Capture();
         }
 
-        public IEnumerator Restore(object dto)
+        public void Restore(object dto, SnapshotRestoreContext context)
         {
             if (dto is not ScreenSnapshotDto screen)
             {
-                yield break;
+                context.Warn("[ScreenSnapshotProvider] DTO 类型不匹配，跳过还原。");
+                return;
             }
 
             ScreenSnapshotHelper.Restore(screen);
-            yield break;
         }
     }
 }
diff --git a/Assets/Scripts/SaveSystem/Providers/TimelineSnapshotProvider.cs b/Assets/Scripts/SaveSystem/Providers/TimelineSnapshotProvider.cs
index c24e038ce..20d81e2ab 100644
--- a/Assets/Scripts/SaveSystem/Providers/TimelineSnapshotProvider.cs
+++ b/Assets/Scripts/SaveSystem/Providers/TimelineSnapshotProvider.cs
@@ -7,7 +7,7 @@ namespace AibisDream.SaveSystem
     /// sections["timeline"]：各 PlayableDirector 的终/初态（TimelineCenter）。
     /// 按 D1.1 只存 AtStart/AtEnd/Stopped，不存时间轴中间帧。
     /// </summary>
-    public class TimelineSnapshotProvider : ISnapshotProvider
+    public class TimelineSnapshotProvider : IAsyncSnapshotProvider
     {
         public string SaveId => SnapshotProviderIds.Timeline;
         public int RestoreOrder => 60;
@@ -23,15 +23,21 @@ namespace AibisDream.SaveSystem
             return TimelineCenter.Instance.CaptureSnapshot();
         }
 
-        public IEnumerator Restore(object dto)
+        public IEnumerator RestoreAsync(object dto, SnapshotRestoreContext context)
         {
             if (dto is not TimelineSnapshotDto timeline)
             {
+                context.Warn("[TimelineSnapshotProvider] DTO 类型不匹配，跳过还原。");
                 yield break;
             }
 
-            TimelineCenter.Instance.RestoreSnapshot(timeline);
-            yield break;
+            if (TimelineCenter.Instance == null)
+            {
+                context.Warn("[TimelineSnapshotProvider] TimelineCenter 未初始化，跳过还原。");
+                yield break;
+            }
+
+            yield return TimelineCenter.Instance.RestoreSnapshotAsync(timeline);
         }
     }
 }