diff --git a/src/composables/useAliyunCaptcha.js b/src/composables/useAliyunCaptcha.js
index 02c27e7..e50b624 100644
--- a/src/composables/useAliyunCaptcha.js
+++ b/src/composables/useAliyunCaptcha.js
@@ -1,4 +1,4 @@
-import { showToast } from "vant";
+import { showToast, showLoadingToast, closeToast } from "vant";
 import useApiFetch from "@/composables/useApiFetch";
 
 // 阿里云验证码场景 ID
@@ -117,42 +117,53 @@ export function useAliyunCaptcha() {
             return;
         }
 
-        window.__captchaVerifyCallback = async (captchaVerifyParam) => {
-            window.__lastBizResponse = null;
-            const { data, error } = await bizVerify(captchaVerifyParam);
-            const result = data?.value ?? data;
-            if (error?.value || !result) {
-                return { captchaResult: false, bizResult: false };
+        const loading = showLoadingToast({
+            message: "安全验证加载中...",
+            forbidClick: true,
+            duration: 0,
+            loadingType: "spinner",
+        });
+
+        try {
+            window.__captchaVerifyCallback = async (captchaVerifyParam) => {
+                window.__lastBizResponse = null;
+                const { data, error } = await bizVerify(captchaVerifyParam);
+                const result = data?.value ?? data;
+                if (error?.value || !result) {
+                    return { captchaResult: false, bizResult: false };
+                }
+                window.__lastBizResponse = result;
+                const captchaOk = result.captchaVerifyResult !== false;
+                const bizOk = result.code === 200;
+                return { captchaResult: captchaOk, bizResult: bizOk };
+            };
+
+            window.__onBizResultCallback = (bizResult) => {
+                if (
+                    bizResult === true &&
+                    window.__lastBizResponse &&
+                    typeof window.__onCaptchaBizSuccess === "function"
+                ) {
+                    window.__onCaptchaBizSuccess(window.__lastBizResponse);
+                }
+            };
+
+            await ensureCaptchaInit();
+
+            // 首次初始化时 SDK 会异步调用 getInstance，需等待实例就绪后再 show
+            if (captchaReadyPromise) {
+                await captchaReadyPromise;
+                captchaReadyPromise = null;
             }
-            window.__lastBizResponse = result;
-            const captchaOk = result.captchaVerifyResult !== false;
-            const bizOk = result.code === 200;
-            return { captchaResult: captchaOk, bizResult: bizOk };
-        };
-
-        window.__onBizResultCallback = (bizResult) => {
-            if (
-                bizResult === true &&
-                window.__lastBizResponse &&
-                typeof window.__onCaptchaBizSuccess === "function"
-            ) {
-                window.__onCaptchaBizSuccess(window.__lastBizResponse);
+            if (!window.captcha) {
+                showToast({ message: "验证码未加载，请刷新页面重试" });
+                return;
             }
-        };
-
-        await ensureCaptchaInit();
-
-        // 首次初始化时 SDK 会异步调用 getInstance，需等待实例就绪后再 show
-        if (captchaReadyPromise) {
-            await captchaReadyPromise;
-            captchaReadyPromise = null;
+            window.__onCaptchaBizSuccess = onSuccess;
+            window.captcha.show();
+        } finally {
+            closeToast();
         }
-        if (!window.captcha) {
-            showToast({ message: "验证码未加载，请刷新页面重试" });
-            return;
-        }
-        window.__onCaptchaBizSuccess = onSuccess;
-        window.captcha.show();
     }
 
     return { runWithCaptcha };