diff --git a/package.json b/package.json
index 5464028..fd3eaf7 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
   "dependencies": {
     "@ant-design/icons": "^6.1.1",
     "@tauri-apps/api": "^2",
+    "@tauri-apps/plugin-fs": "^2.5.0",
     "@tauri-apps/plugin-opener": "^2",
     "antd": "^6.3.5",
     "react": "^18.3.1",
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index e96ffd9..34d7059 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -1815,6 +1815,7 @@ dependencies = [
  "serde_json",
  "tauri",
  "tauri-build",
+ "tauri-plugin-fs",
  "tauri-plugin-opener",
 ]
 
@@ -3457,6 +3458,7 @@ checksum = "e3e0adef53c21f888deb4fa59fc59f7eb17404926ee8a6f59f5df0fd7f9f3272"
 dependencies = [
  "bitflags 2.11.0",
  "block2",
+ "libc",
  "objc2",
  "objc2-core-foundation",
 ]
@@ -5190,6 +5192,30 @@ dependencies = [
  "walkdir",
 ]
 
+[[package]]
+name = "tauri-plugin-fs"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36e1ec28b79f3d0683f4507e1615c36292c0ea6716668770d4396b9b39871ed8"
+dependencies = [
+ "anyhow",
+ "dunce",
+ "glob",
+ "log",
+ "objc2-foundation",
+ "percent-encoding",
+ "schemars 0.8.22",
+ "serde",
+ "serde_json",
+ "serde_repr",
+ "tauri",
+ "tauri-plugin",
+ "tauri-utils",
+ "thiserror 2.0.18",
+ "toml 0.9.12+spec-1.1.0",
+ "url",
+]
+
 [[package]]
 name = "tauri-plugin-opener"
 version = "2.5.3"
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index bd8404d..a2372f1 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -27,4 +27,5 @@ tauri = { version = "2", features = [] }
 tauri-plugin-opener = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
+tauri-plugin-fs = "2.5.0"
 
diff --git a/src-tauri/capabilities/default.json b/src-tauri/capabilities/default.json
index 4cdbf49..5d8648c 100644
--- a/src-tauri/capabilities/default.json
+++ b/src-tauri/capabilities/default.json
@@ -5,6 +5,20 @@
   "windows": ["main"],
   "permissions": [
     "core:default",
-    "opener:default"
+    "opener:default",
+    "fs:default",
+    {
+      "identifier": "fs:allow-read",
+      "allow": [{ "path": "**" }] 
+    },
+    {
+      "identifier": "fs:allow-write",
+      "allow": [{ "path": "**" }]
+    },
+    {
+      "identifier": "fs:allow-mkdir",
+      "allow": [{ "path": "**" }]
+    },
+    "fs:allow-exists"
   ]
 }
diff --git a/src-tauri/src/backend.rs b/src-tauri/src/backend.rs
index 11b781d..d03369a 100644
--- a/src-tauri/src/backend.rs
+++ b/src-tauri/src/backend.rs
@@ -202,7 +202,13 @@ fn detect_file_type(filename: &str, data: &[u8]) -> (EntryType, Option<ScriptTyp
 fn list_fs_directory(path: &Path) -> Result<Vec<Entry>> {
     let mut result = Vec::new();
     for entry in std::fs::read_dir(path)? {
-        let entry = entry?;
+        let entry = match entry {
+            Ok(e) => e,
+            Err(e) => {
+                eprintln!("无法读取目录项: {}", e);
+                continue;
+            }
+        };
         let metadata = entry.metadata()?;
         let is_dir = metadata.is_dir();
         let name = entry.file_name().to_string_lossy().to_string();
@@ -372,9 +378,13 @@ fn list_archive_directory_in_archive<'a>(
     Ok(result)
 }
 
-fn set_last_directory(app: &AppHandle, dir: &str) -> Result<()> {
-    let path = app.path().app_data_dir()?.join("last_directory.txt");
-    std::fs::write(path, dir)?;
+fn set_last_directory(app: &AppHandle, data: &str) -> Result<()> {
+    let dir = app.path().app_data_dir()?;
+    if !dir.exists() {
+        std::fs::create_dir_all(&dir)?;
+    }
+    let path = dir.join("last_directory.txt");
+    std::fs::write(path, data)?;
     Ok(())
 }
 
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index a3d0b24..f25834a 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -4,6 +4,7 @@ mod backend;
 pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
+        .plugin(tauri_plugin_fs::init())
         .invoke_handler(tauri::generate_handler![
             backend::get_start_directory,
             backend::get_xp3_supported_games,
diff --git a/src/components/ImagePreviewPanel.tsx b/src/components/ImagePreviewPanel.tsx
index ad89fbc..0fc8989 100644
--- a/src/components/ImagePreviewPanel.tsx
+++ b/src/components/ImagePreviewPanel.tsx
@@ -131,15 +131,18 @@ export function ImagePreviewPanel({ path, options }: ImagePreviewPanelProps) {
 
     const rw = cw / w;
     const rh = ch / h;
+    const dpr = window.devicePixelRatio || 1;
+    const scale100 = 1 / dpr;
 
-    if (mode === 'fit') return Math.min(1, rw, rh); // 只缩小不放大
+    if (mode === 'fit') return Math.min(scale100, rw, rh); // 只缩小不放大 (基于物理像素的100%)
     if (mode === 'fill') return Math.max(rw, rh); // 可以放大超过100%
-    if (mode === '100%') return 1;
+    if (mode === '100%') return scale100;
     return cScale;
   };
 
   const currentScale = getScale();
 
+
   const stateRef = useRef({ imageSize, containerSize, scaleMode, customScale, position });
   stateRef.current = { imageSize, containerSize, scaleMode, customScale, position };
 
@@ -253,7 +256,7 @@ export function ImagePreviewPanel({ path, options }: ImagePreviewPanelProps) {
       {/* Info Status */}
       <div style={infoContainerStyle}>
         <span style={{ fontSize: 12, color: 'rgba(0,0,0,0.7)', fontWeight: 'bold', fontFamily: 'monospace' }}>
-          {Math.round(currentScale * 100)}%
+          {Math.round(currentScale * (window.devicePixelRatio || 1) * 100)}%
           {imageSize && ` | ${imageSize.w} x ${imageSize.h}`}
         </span>
       </div>
diff --git a/yarn.lock b/yarn.lock
index d7f55a8..87b3800 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -919,7 +919,7 @@
   resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.60.1.tgz#23b860113e9f87eea015d1fa3a4240a52b42fcd4"
   integrity sha512-lWMnixq/QzxyhTV6NjQJ4SFo1J6PvOX8vUx5Wb4bBPsEb+8xZ89Bz6kOXpfXj9ak9AHTQVQzlgzBEc1SyM27xQ==
 
-"@tauri-apps/api@^2", "@tauri-apps/api@^2.8.0":
+"@tauri-apps/api@^2", "@tauri-apps/api@^2.10.1", "@tauri-apps/api@^2.8.0":
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/@tauri-apps/api/-/api-2.10.1.tgz#57c1bae6114ec33d977eb2b50dfefc25fa84fc93"
   integrity sha512-hKL/jWf293UDSUN09rR69hrToyIXBb8CjGaWC7gfinvnQrBVvnLr08FeFi38gxtugAVyVcTa5/FD/Xnkb1siBw==
@@ -996,6 +996,13 @@
     "@tauri-apps/cli-win32-ia32-msvc" "2.10.1"
     "@tauri-apps/cli-win32-x64-msvc" "2.10.1"
 
+"@tauri-apps/plugin-fs@^2.5.0":
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/@tauri-apps/plugin-fs/-/plugin-fs-2.5.0.tgz#977d31ceb6aad600817aaa5233e0d86aee500aad"
+  integrity sha512-c83kbz61AK+rKjhS+je9+stIO27nXj7p9cqeg36TwkIUtxpCFTttlHHtqon6h6FN54cXjyAjlMPOJcW3mwE5XQ==
+  dependencies:
+    "@tauri-apps/api" "^2.10.1"
+
 "@tauri-apps/plugin-opener@^2":
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/@tauri-apps/plugin-opener/-/plugin-opener-2.5.3.tgz#09f8fe143567839cc491f4f8fde21caa0f1a8b89"