diff --git a/src/vendor/tianai-captcha/captcha/captcha.js b/src/vendor/tianai-captcha/captcha/captcha.js
index 48c87ac..dd68209 100644
--- a/src/vendor/tianai-captcha/captcha/captcha.js
+++ b/src/vendor/tianai-captcha/captcha/captcha.js
@@ -9,7 +9,6 @@ import { CaptchaConfig, wrapConfig, wrapStyle } from "./config/config";
 import { clearAllPreventDefault } from "./common/common";
 const template = `
   <div class="__captcha-parent">
-  <div class="captcha-bg-img"></div>
   <div class="captcha-box">
   <div class="captcha-loading loading"></div>
   </div>
@@ -57,7 +56,6 @@ class TianAiCaptcha {
     this.config.domBindEl.append(template);
     this.domTemplate = this.config.domBindEl.find(".__captcha-parent");
     clearAllPreventDefault(this.domTemplate);
-    this.loadStyle();
     // 绑定按钮事件
     this.config.domBindEl
       .find(".refresh-btn")
@@ -98,17 +96,6 @@ class TianAiCaptcha {
       .css("display", "none");
   }
 
-  loadStyle() {
-    // 设置样式
-    const bgUrl = this.style.bgUrl;
-    if (bgUrl) {
-      // 背景图片
-      this.config.domBindEl
-        .find(".captcha-bg-img")
-        .css("background-image", "url(" + bgUrl + ")");
-    }
-  }
-
   destroyWindow() {
     if (this.C) {
       this.C.destroy();
diff --git a/src/vendor/tianai-captcha/captcha/captcha.less b/src/vendor/tianai-captcha/captcha/captcha.less
index fccc0d7..b8821f8 100644
--- a/src/vendor/tianai-captcha/captcha/captcha.less
+++ b/src/vendor/tianai-captcha/captcha/captcha.less
@@ -32,18 +32,6 @@
       transform: translateX(-100%);
     }
   }
-  .captcha-bg-img {
-    background-color: #fff;
-    background-position: top;
-    background-size: cover;
-    z-index: -1;
-    width: 100%;
-    height: 100%;
-    top: 0;
-    left: 0;
-    position: absolute;
-    border-radius: 6px;
-  }
 
   .slider-bottom {
     text-align: right;
diff --git a/src/vendor/tianai-captcha/captcha/config/config.js b/src/vendor/tianai-captcha/captcha/config/config.js
index 4625e19..be32d34 100644
--- a/src/vendor/tianai-captcha/captcha/config/config.js
+++ b/src/vendor/tianai-captcha/captcha/config/config.js
@@ -195,21 +195,6 @@ function wrapConfig(config) {
 }
 
 function wrapStyle(style) {
-  // if (!style) {
-  //     style = {}
-  // }
-  //
-  // if (!style.btnUrl) {
-  //     // 设置默认图片
-  //     style.btnUrl = "data:image/png;base64,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";
-  // }
-  // if (!style.moveTrackMaskBgColor && !style.moveTrackMaskBorderColor) {
-  //     style.moveTrackMaskBgColor = "#89d2ff";
-  //     style.moveTrackMaskBorderColor = "#0298f8";
-  //
-  // }
-  // return style;
-
   let margeStyle = { ...StyleConfig, ...style };
   margeStyle.i18n = { ...StyleConfig.i18n, ...style?.i18n };
   return margeStyle;
diff --git a/src/vendor/tianai-captcha/captcha/slider/slider.less b/src/vendor/tianai-captcha/captcha/slider/slider.less
index cb8b958..45cd2e5 100644
--- a/src/vendor/tianai-captcha/captcha/slider/slider.less
+++ b/src/vendor/tianai-captcha/captcha/slider/slider.less
@@ -79,7 +79,6 @@
     font-weight: bold;
     font-size: 15px;
     line-height: normal;
-    color: black;
   }
   .slider-move-btn:hover {
     cursor: pointer;
diff --git a/src/vendor/tianai-captcha/index.ts b/src/vendor/tianai-captcha/index.ts
index 7d61c3a..cf2b230 100644
--- a/src/vendor/tianai-captcha/index.ts
+++ b/src/vendor/tianai-captcha/index.ts
@@ -9,7 +9,6 @@ export interface TianAiCaptchaResult {
 
 export interface TianAiCaptchaStyle {
   btnUrl?: string
-  bgUrl?: string
   moveTrackMaskBgColor?: string
   moveTrackMaskBorderColor?: string
   i18n?: Record<string, string>