refactor(web): 登录页改版，移除快速登录与记住密码

- 删除演示账号快捷填入、账号/密码预填值与"记住密码"（不再明文存 localStorage）
- 进入登录页自动清理旧版本遗留的 kefu_saved_* 本地数据
- 改用 antd Form.Item 标准 label + 直挂 Input，修复自动填充值不进表单状态
  导致点登录无反应的问题；支持 ?expired=1 过期提示

web/src/index.css

@@ -124,6 +124,17 @@ input:-webkit-autofill:active {
   transition: background-color 50000s ease-in-out 0s;
 }
 
+.login-dark-label {
+  display: block;
+  font-size: 12px;
+  font-weight: 600;
+  color: #cbd5e1;
+}
+
+.login-form .ant-form-item .ant-form-item-label > label {
+  color: #cbd5e1;
+}
+
 .login-dark-input,
 .login-dark-input.ant-input-affix-wrapper,
 .login-dark-input.ant-input {

web/src/pages/Login.tsx

@@ -1,72 +1,39 @@
-import { useState } from 'react'
-import { Form, Input, Button, message } from 'antd'
-import {
-  UserOutlined, LockOutlined,
-  SafetyCertificateOutlined, CrownOutlined, ArrowRightOutlined,
-  CheckCircleFilled, CustomerServiceOutlined,
-} from '@ant-design/icons'
-import { useNavigate } from 'react-router-dom'
+import { useEffect, useState } from 'react'
+import { Button, Form, Input, message } from 'antd'
+import { UserOutlined, LockOutlined, ArrowRightOutlined, CheckCircleFilled } from '@ant-design/icons'
+import { useNavigate, useSearchParams } from 'react-router-dom'
 import { useAuth } from '@/stores/auth'
 import { Logo, LogoIcon } from '@/components/common/Logo'
 
-type DemoRole = {
-  key: string
-  title: string
-  username: string
-  pass: string
-  icon: typeof CrownOutlined
+/** 历史版本遗留的记住密码/演示账号本地数据，进入登录页时统一清理 */
+function cleanupLegacyCredentials() {
+  const keys = ['kefu_remember_me', 'kefu_saved_username', 'kefu_saved_password']
+  keys.forEach(key => localStorage.removeItem(key))
 }
 
-const demoRoles: DemoRole[] = [
-  { key: 'tenant', title: '租户管理', username: 'kefu_admin', pass: 'kefu_admin123', icon: CrownOutlined },
-  { key: 'admin', title: '平台管理', username: 'platform_admin', pass: 'kefu_admin123', icon: SafetyCertificateOutlined },
-  { key: 'agent', title: '坐席人员', username: 'agent1', pass: 'kefu_admin123', icon: CustomerServiceOutlined },
-]
-
 const Login = () => {
   const [form] = Form.useForm()
   const [loading, setLoading] = useState(false)
-  const [selectedRole, setSelectedRole] = useState<string>('tenant')
-
-  // 记住密码状态持久化
-  const [remember, setRemember] = useState<boolean>(() => {
-    return localStorage.getItem('kefu_remember_me') === 'true'
-  })
-
-  const [username, setUsername] = useState<string>(() => {
-    const isRemembered = localStorage.getItem('kefu_remember_me') === 'true'
-    if (isRemembered) {
-      return localStorage.getItem('kefu_saved_username') || 'kefu_admin'
-    }
-    return 'kefu_admin'
-  })
-
-  const [password, setPassword] = useState<string>(() => {
-    const isRemembered = localStorage.getItem('kefu_remember_me') === 'true'
-    if (isRemembered) {
-      return localStorage.getItem('kefu_saved_password') || 'kefu_admin123'
-    }
-    return 'kefu_admin123'
-  })
+  const [searchParams] = useSearchParams()
+  const expired = searchParams.get('expired') === '1'
 
   const { login } = useAuth()
   const navigate = useNavigate()
 
-  const onFinish = async (values: { username?: string; password?: string }) => {
-    setLoading(true)
-    const u = (values.username || username).trim()
-    const p = (values.password || password).trim()
-    try {
-      const user = await login(u, p)
-      if (remember) {
-        localStorage.setItem('kefu_remember_me', 'true')
-        localStorage.setItem('kefu_saved_username', u)
-        localStorage.setItem('kefu_saved_password', p)
-      } else {
-        localStorage.removeItem('kefu_remember_me')
-        localStorage.removeItem('kefu_saved_username')
-        localStorage.removeItem('kefu_saved_password')
+  useEffect(() => {
+    cleanupLegacyCredentials()
+  }, [])
+
+  useEffect(() => {
+    if (expired) {
+      message.warning('登录已过期，请重新登录')
     }
+  }, [expired])
+
+  const onFinish = async (values: { username: string; password: string }) => {
+    setLoading(true)
+    try {
+      const user = await login(values.username.trim(), values.password)
       message.success('登录成功')
       navigate(user.role === 'platform_admin' ? '/admin/dashboard' : '/agent/dashboard', { replace: true })
     } catch {
@@ -76,13 +43,6 @@ const Login = () => {
     }
   }
 
-  const selectDemoRole = (role: DemoRole) => {
-    setSelectedRole(role.key)
-    setUsername(role.username)
-    setPassword(role.pass)
-    form.setFieldsValue({ username: role.username, password: role.pass })
-  }
-
   return (
     <div className="min-h-screen w-full relative flex flex-col justify-between bg-slate-950 p-4 sm:p-6 overflow-y-auto select-none">
       {/* 科技感深邃渐变背景 */}
@@ -105,107 +65,58 @@ const Login = () => {
       {/* 核心登录卡片 */}
       <main className="relative z-10 flex-1 flex items-center justify-center py-6">
         <div className="w-full max-w-[420px]">
-          <div className="relative rounded-3xl bg-slate-900/90 border border-slate-800 shadow-2xl p-7 sm:p-8 backdrop-blur-xl">
+          <div className="relative rounded-3xl bg-slate-900/90 border border-slate-800 shadow-2xl p-7 sm:p-9 backdrop-blur-xl">
             {/* 顶端亮色发光描边 */}
             <div className="absolute inset-x-0 -top-px h-px bg-gradient-to-r from-transparent via-blue-500/50 to-transparent" />
 
             {/* 卡片头部 */}
-            <div className="text-center mb-6">
-              <div className="inline-flex items-center justify-center mb-3">
-                <LogoIcon size={52} />
+            <div className="text-center mb-8">
+              <div className="inline-flex items-center justify-center mb-4">
+                <LogoIcon size={56} />
               </div>
               <h1 className="text-xl font-bold text-white tracking-tight m-0">登录客服云平台</h1>
-              <p className="text-xs text-slate-400 mt-1.5 m-0">全渠道多租户智能客服与运营管理</p>
-            </div>
-
-            {/* 顶部一键填入演示账号切换 Tab */}
-            <div className="mb-6">
-              <div className="flex items-center justify-between text-[11px] text-slate-400 mb-2 font-medium">
-                <span>快捷填入演示账号:</span>
-                <span className="text-slate-500">点击自动填入</span>
-              </div>
-              <div className="grid grid-cols-3 gap-1.5 p-1 rounded-xl bg-slate-950/80 border border-slate-800/80">
-                {demoRoles.map(role => {
-                  const Icon = role.icon
-                  const active = selectedRole === role.key
-                  return (
-                    <button
-                      key={role.key}
-                      type="button"
-                      onClick={() => selectDemoRole(role)}
-                      className={`flex flex-col items-center justify-center py-2 px-1 rounded-lg text-xs font-medium border-0 cursor-pointer transition-all ${
-                        active
-                          ? 'bg-blue-600 text-white shadow-sm font-semibold'
-                          : 'bg-transparent text-slate-400 hover:text-slate-200 hover:bg-slate-800/50'
-                      }`}
-                    >
-                      <Icon className="text-xs mb-1" />
-                      <span className="text-[11px] leading-none">{role.title}</span>
-                    </button>
-                  )
-                })}
-              </div>
+              <p className="text-xs text-slate-400 mt-2 m-0">全渠道多租户智能客服与运营管理</p>
             </div>
 
             {/* 登录表单 */}
-            <Form form={form} layout="vertical" onFinish={onFinish} autoComplete="off" size="large">
+            <Form
+              form={form}
+              layout="vertical"
+              onFinish={onFinish}
+              requiredMark={false}
+              size="large"
+              className="login-form"
+            >
               <Form.Item
+                label={<span className="login-dark-label">账号</span>}
                 name="username"
                 rules={[{ required: true, message: '请输入用户名' }]}
-                className="!mb-4"
+                className="!mb-5"
               >
-                <div className="space-y-1.5">
-                  <label className="block text-xs font-semibold text-slate-300">账号 / 用户名</label>
                 <Input
-                    value={username}
-                    onChange={e => {
-                      setUsername(e.target.value)
-                      form.setFieldsValue({ username: e.target.value })
-                    }}
+                  autoFocus
+                  autoComplete="username"
                   prefix={<UserOutlined className="text-slate-400 mr-1.5 text-sm" />}
                   placeholder="请输入登录账号"
                   className="login-dark-input !h-11 !rounded-xl !text-slate-100 placeholder:!text-slate-500 transition-all text-sm"
                 />
-                </div>
               </Form.Item>
 
               <Form.Item
+                label={<span className="login-dark-label">密码</span>}
                 name="password"
                 rules={[{ required: true, message: '请输入密码' }]}
-                className="!mb-4"
+                className="!mb-7"
               >
-                <div className="space-y-1.5">
-                  <label className="block text-xs font-semibold text-slate-300">密码</label>
                 <Input.Password
-                    value={password}
-                    onChange={e => {
-                      setPassword(e.target.value)
-                      form.setFieldsValue({ password: e.target.value })
-                    }}
+                  autoComplete="current-password"
                   prefix={<LockOutlined className="text-slate-400 mr-1.5 text-sm" />}
                   placeholder="请输入登录密码"
                   className="login-dark-input !h-11 !rounded-xl !text-slate-100 placeholder:!text-slate-500 transition-all text-sm"
                 />
-                </div>
               </Form.Item>
 
-              {/* 记住密码勾选栏 */}
-              <div className="flex items-center justify-between mb-5">
-                <label className="flex items-center gap-2 cursor-pointer text-xs text-slate-300 hover:text-white select-none transition-colors">
-                  <input
-                    type="checkbox"
-                    checked={remember}
-                    onChange={e => setRemember(e.target.checked)}
-                    className="w-4 h-4 rounded bg-slate-800 border-slate-700 text-blue-600 focus:ring-blue-500/20 cursor-pointer accent-blue-600"
-                  />
-                  <span className="font-medium">记住密码</span>
-                </label>
-                <span className="text-[11px] text-slate-500 hover:text-slate-400 cursor-pointer">
-                  忘记密码请联系管理员
-                </span>
-              </div>
-
-              <Form.Item className="!mb-2">
+              <Form.Item className="!mb-3">
                 <Button
                   type="primary"
                   htmlType="submit"
@@ -217,6 +128,10 @@ const Login = () => {
                   <ArrowRightOutlined className="text-xs" />
                 </Button>
               </Form.Item>
+
+              <p className="text-center text-[11px] text-slate-500 m-0">
+                忘记密码请联系平台管理员
+              </p>
             </Form>
           </div>
         </div>