diff --git a/index.php b/index.php
index 6f50a47..07d011f 100644
--- a/index.php
+++ b/index.php
@@ -3,11 +3,11 @@ $base_dir='/o/';//以/即结束即可
 $user="chate.store";// 用户名
 $pwd="123456";// 密码，请记得频繁更换
 
-$authorization = false;
+$auth = false;
 if ($_SERVER['PHP_AUTH_USER'] == $user && $_SERVER['PHP_AUTH_PW'] == $pwd){
-    $authorization = true;
+    $auth = true;
 }
-if(!$authorization){
+if(!$auth){
     // 没登录成功，弹出要求输入用户名和密码窗口
     header("WWW-Authenticate:Basic realm='Private'");
     header('HTTP/1.0 401 Unauthorized');
@@ -28,7 +28,11 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
 
   // 兼容跨平台路径
   $md5 = md5_file($file_tmp);
-  $upload_dir = getcwd() . $base_dir . substr($md5,0,1).'/'.substr($md5,1,1);
+  $dir1 = substr($md5,0,1);
+  $dir2 = substr($md5,1,1);
+  $path = getcwd();
+  $upload_dir = $path . $base_dir .$dir1 .'/'. $dir2;
+  $upload_parent_dir = $path . $base_dir .$dir1 ;
   // 检查并创建目录
   if (!is_dir($upload_dir)) {
     if (!mkdir($upload_dir, 0777, true) && !is_dir($upload_dir)) {
@@ -37,7 +41,9 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
     }
     // 开始创建index.html
     file_put_contents($upload_dir .'/index.html', 'no access');
-    file_put_contents( getcwd() . $base_dir .  substr($md5,0,1). '/index.html', 'no access');
+    if(!file_exists($upload_parent_dir. '/index.html')){
+        file_put_contents( $upload_parent_dir. '/index.html', 'no access');
+        }
   }
 
   // 根据文件内容生成MD5文件名，这样可以排除重复上传
@@ -45,7 +51,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
   // 这里判断下重复文件不移动文件
   $target_file=$upload_dir . '/' .$FileName;
   if (file_exists($target_file) || move_uploaded_file($file_tmp, $target_file)) {
-    echo '{"upload_url":"http://'.$_SERVER['HTTP_HOST'] . $base_dir . substr($md5,0,1). '/' .substr($md5,1,1) .'/'. $FileName.'"}';
+    echo '{"upload_url":"http://'.$_SERVER['HTTP_HOST'] . $base_dir . $dir1. '/' .$dir2 .'/'. $FileName.'"}';
   } else {
     echo '{"error":"写入失败，无法保存文件"}';
   }
@@ -148,25 +154,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
     justify-content: flex-end; /* 使按钮靠右对齐 */
     margin-top: 10px; /* 添加上边距 */
   }
-  [url=home.php?mod=space&uid=945662]@media[/url] (max-width: 600px) {
-    .container {
-      width: 100%;
-      padding: 0 10px;
-    }
-    .file-name {
-      width: 100px;
-      overflow: hidden;
-      text-overflow: ellipsis;
-      white-space: nowrap;
-    }
-    .progress-status {
-      display: none;
-    }
-    .btn-download, .btn-copy {
-      width: 40px;
-      margin-left: 5px;
-    }
-  }
+  
   .nav {
     display: flex;
     justify-content: center; /* 居中对齐 */
@@ -179,11 +167,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
   <div class="container">
     <div class="card">
       <div class="card-body">
-        <h4 class="card-title text-center" style="font-weight: bold;">一个简单的图床</h4>
+        <h4 class="card-title text-center" style="font-weight: bold;">SIW（Simple Image Web）</h4>
+        <h6 class="card-title text-center" style="font-weight: bold;">简单就是美。</h6>
         <form id="uploadForm" enctype="multipart/form-data">
           <div class="mb-3">
             <label for="files" class="form-label"></label>
-            <input type="file" class="form-control" id="files" name="files[]" multiple accept="image/jpeg, image/png, image/gif, image/webp, image/avif, image/bmp, image/svg+xml" required>
+            <input type="file" class="form-control" id="files" name="files[]" multiple accept="image/jpeg, image/png, image/gif, image/webp, image/avif" required>
           </div>
           <button type="submit" class="btn btn-primary w-100" style="font-weight: bold;">开始上传</button>
         </form>
@@ -197,7 +186,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
           <button class="btn btn-success" id="copyAllBtn">复制所有链接</button>
           <textarea id="linkText" readonly></textarea>
         </div>
-        <h6 id="formatHint" class="card-title text-center">支持格式: JPEG, PNG, GIF, WEBP, AVIF, BMP, SVG 最大上传：<?php echo ini_get('upload_max_filesize');?></h6>
+        <h6 id="formatHint" class="card-title text-center">支持格式: JPEG, PNG, GIF, WEBP, AVIF 最大上传：<?php echo ini_get('upload_max_filesize');?></h6>
       </div>
     </div>
   </div>
@@ -233,11 +222,11 @@ $(document).ready(function () {
     clearOutput();
     var files = this.files;
     // 允许的文件类型
-    var validFormats = ['image/jpeg', 'image/png', 'image/gif', 'image/webp', 'image/avif',  'image/bmp', 'image/svg'];
+    var validFormats = ['image/jpeg', 'image/png', 'image/gif', 'image/webp', 'image/avif'];
     var validFiles = Array.from(files).filter(file => validFormats.includes(file.type));
 
     if (validFiles.length === 0) {
-      showAlert('请选择有效的图片文件（JPEG, PNG, GIF，WEBP，AVIF，BMP,SVG）！');
+      showAlert('请选择有效的图片文件（JPEG, PNG, GIF，WEBP，AVIF）！');
       $('#files').val(''); // 清空文件选择
       return;
     }
@@ -336,11 +325,9 @@ $(document).ready(function () {
     uploadNextFile();
   });
   function showLinkOutput() {
-    if (uploadedLinks.length > 1) {
       $('.link-output').show();
       $('#linkText').val(uploadedLinks.join('\n')); // 显示所有链接
       $('#linkText').scrollTop($('#linkText')[0].scrollHeight);
-    }
   }
   function showAlert(message) {
     var tooltip = document.createElement('div');