diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a62fbde..c90411d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@
 * bug修复：修复移动端修改聊天标题不生效的问题
 * Bug修复：修复用户注册不显示用户名的问题
 * Bug修复：修复管理后台拖动排序不生效的问题
+* 功能优化：允许用户设置自定义首页背景图片
+* 功能新增：**支持AI解读 PDF, Word, Excel等文件**
+* 功能优化：优化聊天界面的用户上传文件的列表样式
+* 功能新增：支持微信等社交媒体登录
+
 
 ## v4.0.9
 * 环境升级：升级 Golang 到 go1.22.4
diff --git a/api/core/types/config.go b/api/core/types/config.go
index ccd1dada..ac200818 100644
--- a/api/core/types/config.go
+++ b/api/core/types/config.go
@@ -226,5 +226,5 @@ type SystemConfig struct {
 
 	SdNegPrompt string `json:"sd_neg_prompt"` // SD 默认反向提示词
 
-	RandBg bool `json:"rand_bg"` // 前端首页是否启用随机背景
+	IndexBgURL string `json:"index_bg_url"` // 前端首页背景图片
 }
diff --git a/web/src/assets/img/ai-bg.jpg b/web/public/images/index-bg.jpg
similarity index 100%
rename from web/src/assets/img/ai-bg.jpg
rename to web/public/images/index-bg.jpg
diff --git a/web/src/assets/css/admin/form.styl b/web/src/assets/css/admin/form.styl
index 9829924e..dd3e4638 100644
--- a/web/src/assets/css/admin/form.styl
+++ b/web/src/assets/css/admin/form.styl
@@ -3,14 +3,12 @@
     display flex
     width 100%
 
-    .el-input {
-      width 50%
+    .el-input,.el-select,.el-switch {
+      margin-right 10px
     }
 
     .info {
-      margin-left 6px
       margin-top 2px
     }
-
   }
 }
\ No newline at end of file
diff --git a/web/src/assets/img/ai-bg-02.png b/web/src/assets/img/ai-bg-02.png
deleted file mode 100644
index ad0d7edb..00000000
Binary files a/web/src/assets/img/ai-bg-02.png and /dev/null differ
diff --git a/web/src/views/Index.vue b/web/src/views/Index.vue
index b58bf46a..092c95e4 100644
--- a/web/src/views/Index.vue
+++ b/web/src/views/Index.vue
@@ -1,6 +1,6 @@
 <template>
   <div class="index-page" :style="{height: winHeight+'px'}">
-    <div :class="bgClass"></div>
+    <div class="index-bg" :style="{backgroundImage: 'url('+bgImgUrl+')'}"></div>
     <div class="menu-box">
       <el-menu
           mode="horizontal"
@@ -65,7 +65,6 @@
 
 <script setup>
 
-// import * as THREE from 'three';
 import {onMounted, ref} from "vue";
 import {useRouter} from "vue-router";
 import FooterBar from "@/components/FooterBar.vue";
@@ -84,17 +83,18 @@ const title = ref("Geek-AI 创作系统")
 const logo = ref("/images/logo.png")
 const slogan = ref("我辈之人，先干为敬，陪您先把 AI 用起来")
 const licenseConfig = ref({})
-// const size = Math.max(window.innerWidth * 0.5, window.innerHeight * 0.8)
 const winHeight = window.innerHeight - 150
-const bgClass = ref('fixed-bg')
+const bgImgUrl = ref('')
 const isLogin = ref(false)
 
 onMounted(() => {
   httpGet("/api/config/get?key=system").then(res => {
     title.value = res.data.title
     logo.value = res.data.logo
-    if (res.data.rand_bg) {
-      bgClass.value = "rand-bg"
+    if (res.data.index_bg_url) {
+      bgImgUrl.value = res.data.index_bg_url
+    } else {
+      bgImgUrl.value = "/images/index-bg.jpg"
     }
     if (res.data.slogan) {
       slogan.value = res.data.slogan
@@ -126,24 +126,12 @@ onMounted(() => {
   align-items baseline
   padding-top 150px
 
-  .fixed-bg {
+  .index-bg {
     position absolute
     top 0
     left 0
     width 100vw
     height 100vh
-    background-image url("~@/assets/img/ai-bg.jpg")
-    background-size: cover;
-    background-position: center;
-  }
-
-  .rand-bg {
-    position absolute
-    top 0
-    left 0
-    width 100vw
-    height 100vh
-    background-image url("https://api.dujin.org/bing/1920.php")
     filter: blur(8px);
     background-size: cover;
     background-position: center;
diff --git a/web/src/views/admin/SysConfig.vue b/web/src/views/admin/SysConfig.vue
index 709720e9..af979b2e 100644
--- a/web/src/views/admin/SysConfig.vue
+++ b/web/src/views/admin/SysConfig.vue
@@ -33,32 +33,42 @@
                   </el-input>
                 </el-form-item>
 
-                <el-form-item label="开放注册" prop="enabled_register">
-                  <el-switch v-model="system['enabled_register']"/>
-                  <el-tooltip
-                      effect="dark"
-                      content="关闭注册之后只能通过管理后台添加用户"
-                      raw-content
-                      placement="right"
-                  >
-                    <el-icon>
-                      <InfoFilled/>
-                    </el-icon>
-                  </el-tooltip>
+                <el-form-item label="首页背景图" prop="logo">
+                  <div class="tip-input">
+                    <el-input v-model="system['index_bg_url']" placeholder="网站首页背景图片">
+                      <template #append>
+                        <el-upload
+                            :auto-upload="true"
+                            :show-file-list="false"
+                            @click="beforeUpload('index_bg_url')"
+                            :http-request="uploadImg"
+                        >
+                          <el-icon class="uploader-icon">
+                            <UploadFilled/>
+                          </el-icon>
+                        </el-upload>
+                      </template>
+                    </el-input>
+                    <el-button type="primary" @click="system.index_bg_url = 'https://api.dujin.org/bing/1920.php'">使用动态背景</el-button>
+                  </div>
                 </el-form-item>
 
-                <el-form-item label="动态背景">
-                  <el-switch v-model="system['rand_bg']"/>
-                  <el-tooltip
-                      effect="dark"
-                      content="打开之后前端首页将使用随机壁纸作为背景图"
-                      raw-content
-                      placement="right"
-                  >
-                    <el-icon>
-                      <InfoFilled/>
-                    </el-icon>
-                  </el-tooltip>
+                <el-form-item label="开放注册" prop="enabled_register">
+                  <div class="tip-input">
+                    <el-switch v-model="system['enabled_register']"/>
+                    <div class="info">
+                      <el-tooltip
+                          effect="dark"
+                          content="关闭注册之后只能通过管理后台添加用户"
+                          raw-content
+                          placement="right"
+                      >
+                        <el-icon>
+                          <InfoFilled/>
+                        </el-icon>
+                      </el-tooltip>
+                    </div>
+                  </div>
                 </el-form-item>
 
                 <el-form-item label="注册方式" prop="register_ways">
@@ -211,17 +221,21 @@
               </el-tab-pane>
               <el-tab-pane label="众筹支付">
                 <el-form-item label="启用众筹功能" prop="enabled_reward">
-                  <el-switch v-model="system['enabled_reward']"/>
-                  <el-tooltip
-                      effect="dark"
-                      content="如果关闭次功能将不在用户菜单显示众筹二维码"
-                      raw-content
-                      placement="right"
-                  >
-                    <el-icon>
-                      <InfoFilled/>
-                    </el-icon>
-                  </el-tooltip>
+                  <div class="tip-input">
+                    <el-switch v-model="system['enabled_reward']"/>
+                    <div class="info">
+                      <el-tooltip
+                          effect="dark"
+                          content="如果关闭次功能将不在用户菜单显示众筹二维码"
+                          raw-content
+                          placement="right"
+                      >
+                        <el-icon>
+                          <InfoFilled/>
+                        </el-icon>
+                      </el-tooltip>
+                    </div>
+                  </div>
                 </el-form-item>
 
                 <div v-if="system['enabled_reward']">
@@ -534,7 +548,6 @@ const onUploadImg = (files, callback) => {
 
           .el-icon {
             font-size 16px
-            margin-left 10px
             cursor pointer
           }