fix captcha show

app/auth/signin/page.tsx

@@ -58,7 +58,12 @@ function SignInContent() {
 
   const handleEmailSignInClick = (e: React.FormEvent) => {
     e.preventDefault()
-    if (!email) return
+    if (!email.trim()) return
+    
+    // 清除之前的消息
+    setMessage("")
+    
+    // 显示验证码弹窗
     setShowCaptcha(true)
   }
 
@@ -68,7 +73,7 @@ function SignInContent() {
 
     try {
       const result = await signIn("nodemailer", {
-        email,
+        email: email.trim(),
         redirect: false,
       })
 
@@ -78,6 +83,7 @@ function SignInContent() {
         setMessage("登录链接已发送到您的邮箱，请查收")
       }
     } catch (error) {
+      console.error("Email sign in error:", error)
       setMessage("登录失败，请重试")
     } finally {
       setIsLoading(false)
@@ -86,14 +92,24 @@ function SignInContent() {
 
   const handleCaptchaCancel = () => {
     setMessage("")
+    setIsLoading(false)
+  }
+
+  const handleCaptchaOpenChange = (open: boolean) => {
+    setShowCaptcha(open)
+    if (!open) {
+      setIsLoading(false)
+    }
   }
 
   const handleGoogleSignIn = async () => {
     setIsLoading(true)
+    setMessage("")
     try {
       const callbackUrl = searchParams.get("callbackUrl") || "/"
       await signIn("google", { callbackUrl })
     } catch (error) {
+      console.error("Google sign in error:", error)
       setMessage("Google登录失败，请重试")
       setIsLoading(false)
     }
@@ -145,12 +161,13 @@ function SignInContent() {
                   onChange={(e) => setEmail(e.target.value)}
                   required
                   className="bg-background border-input"
+                  disabled={isLoading}
                 />
               </div>
               <Button
                 type="submit"
                 className="w-full"
-                disabled={isLoading || !email}
+                disabled={isLoading || !email.trim()}
               >
                 <Mail className="mr-2 h-4 w-4" />
                 {isLoading ? "发送中..." : "发送登录链接"}
@@ -169,7 +186,7 @@ function SignInContent() {
       {/* 验证码弹窗 */}
       <CaptchaDialog
         open={showCaptcha}
-        onOpenChange={setShowCaptcha}
+        onOpenChange={handleCaptchaOpenChange}
         onVerify={handleCaptchaVerify}
         onCancel={handleCaptchaCancel}
       />

components/captcha-dialog.tsx

@@ -8,12 +8,15 @@ import {
   DialogFooter,
   DialogHeader,
   DialogTitle,
+  DialogPortal,
+  DialogOverlay,
 } from "@/components/ui/dialog"
 import { Button } from "@/components/ui/button"
 import { Input } from "@/components/ui/input"
 import { Label } from "@/components/ui/label"
 import { Alert, AlertDescription } from "@/components/ui/alert"
 import { Shield, RefreshCw, AlertCircle } from "lucide-react"
+import * as DialogPrimitive from "@radix-ui/react-dialog"
 
 interface CaptchaDialogProps {
   open: boolean
@@ -76,88 +79,104 @@ export function CaptchaDialog({
     }
   }
 
+  // 防止第一次打开时的遮罩层问题
+  const handleOpenChange = (newOpen: boolean) => {
+    if (!newOpen) {
+      setUserAnswer("")
+      setError("")
+      onCancel()
+    }
+    onOpenChange(newOpen)
+  }
+
   return (
-    <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="sm:max-w-md">
-        <DialogHeader>
-          <DialogTitle className="flex items-center gap-2 text-foreground">
-            <Shield className="h-5 w-5 text-blue-500 dark:text-blue-400" />
-            安全验证
-          </DialogTitle>
-          <DialogDescription>
-            为了防止恶意使用，请完成以下验证码验证后再发送登录邮件
-          </DialogDescription>
-        </DialogHeader>
+    <Dialog open={open} onOpenChange={handleOpenChange}>
+      <DialogPortal>
+        <DialogOverlay className="fixed inset-0 z-[100] bg-black/80" />
+        <DialogPrimitive.Content
+          className="fixed left-[50%] top-[50%] z-[101] grid w-full max-w-md translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg focus:outline-none"
+          onPointerDownOutside={(e) => e.preventDefault()}
+        >
+          <DialogHeader>
+            <DialogTitle className="flex items-center gap-2 text-foreground">
+              <Shield className="h-5 w-5 text-blue-500 dark:text-blue-400" />
+              安全验证
+            </DialogTitle>
+            <DialogDescription>
+              为了防止恶意使用，请完成以下验证码验证后再发送登录邮件
+            </DialogDescription>
+          </DialogHeader>
 
-        <div className="space-y-4">
-          <Alert className="border-blue-200 bg-blue-50 dark:border-blue-800 dark:bg-blue-950/50">
-            <AlertCircle className="h-4 w-4" />
-            <AlertDescription>
-              <strong>提示：</strong>计算下面的数学题，输入答案完成验证
-            </AlertDescription>
-          </Alert>
+          <div className="space-y-4">
+            <Alert className="border-blue-200 bg-blue-50 dark:border-blue-800 dark:bg-blue-950/50">
+              <AlertCircle className="h-4 w-4" />
+              <AlertDescription>
+                <strong>提示：</strong>计算下面的数学题，输入答案完成验证
+              </AlertDescription>
+            </Alert>
 
-          <div className="space-y-3">
-            <div className="flex items-center justify-center p-6 bg-muted/50 rounded-lg border">
-              <div className="text-center">
-                <div className="text-2xl font-bold text-foreground mb-2">
-                  {num1} + {num2} = ?
-                </div>
-                <div className="flex items-center justify-center gap-2">
-                  <Button
-                    variant="ghost"
-                    size="sm"
-                    onClick={generateCaptcha}
-                    className="text-muted-foreground hover:text-foreground"
-                  >
-                    <RefreshCw className="h-4 w-4 mr-1" />
-                    换一题
-                  </Button>
+            <div className="space-y-3">
+              <div className="flex items-center justify-center p-6 bg-muted/50 rounded-lg border">
+                <div className="text-center">
+                  <div className="text-2xl font-bold text-foreground mb-2">
+                    {num1} + {num2} = ?
+                  </div>
+                  <div className="flex items-center justify-center gap-2">
+                    <Button
+                      variant="ghost"
+                      size="sm"
+                      onClick={generateCaptcha}
+                      className="text-muted-foreground hover:text-foreground"
+                    >
+                      <RefreshCw className="h-4 w-4 mr-1" />
+                      换一题
+                    </Button>
+                  </div>
                 </div>
               </div>
-            </div>
 
-            <div className="space-y-2">
-              <Label htmlFor="captcha-answer" className="text-foreground">
-                请输入答案
-              </Label>
-              <Input
-                id="captcha-answer"
-                type="number"
-                placeholder="输入计算结果"
-                value={userAnswer}
-                onChange={(e) => setUserAnswer(e.target.value)}
-                onKeyPress={handleKeyPress}
-                className="text-center text-lg font-medium"
-                autoFocus
-              />
-            </div>
+              <div className="space-y-2">
+                <Label htmlFor="captcha-answer" className="text-foreground">
+                  请输入答案
+                </Label>
+                <Input
+                  id="captcha-answer"
+                  type="number"
+                  placeholder="输入计算结果"
+                  value={userAnswer}
+                  onChange={(e) => setUserAnswer(e.target.value)}
+                  onKeyDown={handleKeyPress}
+                  className="text-center text-lg font-medium"
+                  autoFocus
+                />
+              </div>
 
-            {error && (
-              <Alert className="border-red-200 bg-red-50 text-red-800 dark:border-red-800 dark:bg-red-950 dark:text-red-200">
-                <AlertCircle className="h-4 w-4" />
-                <AlertDescription>{error}</AlertDescription>
-              </Alert>
-            )}
+              {error && (
+                <Alert className="border-red-200 bg-red-50 text-red-800 dark:border-red-800 dark:bg-red-950 dark:text-red-200">
+                  <AlertCircle className="h-4 w-4" />
+                  <AlertDescription>{error}</AlertDescription>
+                </Alert>
+              )}
+            </div>
           </div>
-        </div>
 
-        <DialogFooter className="flex justify-between">
-          <Button
-            variant="outline"
-            onClick={handleCancel}
-          >
-            取消
-          </Button>
-          <Button
-            onClick={handleVerify}
-            disabled={!userAnswer.trim()}
-            className="bg-blue-600 hover:bg-blue-700 dark:bg-blue-600 dark:hover:bg-blue-700"
-          >
-            验证并发送邮件
-          </Button>
-        </DialogFooter>
-      </DialogContent>
+          <DialogFooter className="flex justify-between">
+            <Button
+              variant="outline"
+              onClick={handleCancel}
+            >
+              取消
+            </Button>
+            <Button
+              onClick={handleVerify}
+              disabled={!userAnswer.trim()}
+              className="bg-blue-600 hover:bg-blue-700 dark:bg-blue-600 dark:hover:bg-blue-700"
+            >
+              验证并发送邮件
+            </Button>
+          </DialogFooter>
+        </DialogPrimitive.Content>
+      </DialogPortal>
     </Dialog>
   )
 }