diff --git a/src/pages/Home/components/LoginForm.vue b/src/pages/Home/components/LoginForm.vue
index 81d67cc..b0abded 100644
--- a/src/pages/Home/components/LoginForm.vue
+++ b/src/pages/Home/components/LoginForm.vue
@@ -1,15 +1,40 @@
 <template>
   <form @submit.prevent="handleLogin" class="flex flex-col gap-6 text-base text-black md:text-2xl">
-    <div class="overflow-hidden rounded-[20px] bg-[#78788029] px-4">
+    <div class="rounded-[20px] bg-[#78788029] px-4">
       <div class="relative">
         <Input
           v-model="email"
-          type="email"
-          name="email"
-          autocomplete="email"
+          type="text"
+          name="user_email_identity"
+          autocomplete="new-password"
           placeholder="Email"
           class="h-[50px] border-none bg-transparent text-base focus-visible:ring-0 md:text-2xl"
+          @focus="isFocused = true"
+          @blur="onBlur"
+          @keydown="handleKeyDown"
         />
+        <transition name="fade">
+          <div
+            v-if="isFocused && suggestList.length > 0"
+            class="absolute top-[55px] left-0 z-[100] w-full rounded-xl border border-white/20 bg-white/95 p-1 shadow-2xl backdrop-blur-xl dark:bg-black/90"
+          >
+            <div
+              v-for="(item, index) in suggestList"
+              :key="item.full"
+              @mousedown="selectSuggest(item.full)"
+              :class="[
+                'flex cursor-pointer items-center rounded-lg px-3 py-2 text-sm transition-colors md:text-xl',
+                activeIndex === index ? 'bg-[#A8FF53]/10' : '',
+              ]"
+            >
+              <span class="font-medium text-black/80">{{ prefix }}</span>
+
+              <span class="font-medium text-black">{{ item.userInputPart }}</span>
+
+              <span class="text-black opacity-30">{{ item.suggestPart }}</span>
+            </div>
+          </div>
+        </transition>
         <div class="absolute bottom-0 left-0 h-[1px] w-full bg-gray-400/30"></div>
       </div>
 
@@ -56,7 +81,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref } from 'vue'
+import { ref, computed, watch } from 'vue'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { toast } from 'vue-sonner'
@@ -68,21 +93,90 @@ const CodeSentTipRef = ref<InstanceType<typeof CodeSentTip> | null>(null)
 const email = ref('')
 const code = ref('')
 const countdown = ref(0)
+const isFocused = ref(false)
+const commonSuffixes = ['@gmail.com', '@outlook.com', '@qq.com', '@163.com']
+const activeIndex = ref(-1) // 记录当前键盘选中的索引
 
+// 1. 逻辑：提取 @ 前的字符
+const prefix = computed(() => {
+  const atIndex = email.value.indexOf('@')
+  return atIndex > -1 ? email.value.slice(0, atIndex) : email.value
+})
+
+// 输入变化时重置索引
+watch(email, () => {
+  activeIndex.value = -1
+})
+// 键盘控制逻辑
+const handleKeyDown = (e: KeyboardEvent) => {
+  if (!suggestList.value.length) return
+
+  if (e.key === 'ArrowDown') {
+    e.preventDefault()
+    activeIndex.value = (activeIndex.value + 1) % suggestList.value.length
+  } else if (e.key === 'ArrowUp') {
+    e.preventDefault()
+    activeIndex.value =
+      (activeIndex.value - 1 + suggestList.value.length) % suggestList.value.length
+  } else if (e.key === 'Enter' && activeIndex.value !== -1) {
+    e.preventDefault()
+    selectSuggest(suggestList.value[activeIndex.value])
+  }
+}
+
+// 2. 逻辑：生成建议列表
+const suggestList = computed(() => {
+  const val = email.value.trim()
+  if (!val || val.length < 1) return []
+
+  const atIndex = val.indexOf('@')
+  // 用户目前输入的后缀部分（例如输入了 "abc@gm"，则 domainPart 为 "@gm"）
+  const domainPart = atIndex > -1 ? val.slice(atIndex) : ''
+
+  // 过滤匹配的后缀
+  const matches = commonSuffixes.filter((s) => s.startsWith(domainPart) && s !== domainPart)
+
+  return matches.map((full) => {
+    return {
+      full: full, // 完整后缀，用于点击填入
+      userInputPart: domainPart, // 用户已经输入的后缀部分（标色）
+      suggestPart: full.replace(domainPart, ''), // 还没输入的推荐部分（置灰）
+    }
+  })
+})
+
+// 4. 处理选中
+const selectSuggest = (fullSuffix: string) => {
+  email.value = prefix.value + fullSuffix
+  isFocused.value = false
+}
+
+const onBlur = () => {
+  // 必须延迟，否则点击列表时会先触发 blur 导致列表消失无法选中
+  setTimeout(() => (isFocused.value = false), 200)
+}
+
+// 3. 校验逻辑
+const validateEmail = (str: string) => {
+  return /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/.test(str)
+}
 const emit = defineEmits(['close'])
 const handleGetCode = () => {
   if (!email.value) {
     toast('请输入邮箱')
     return
   }
-  CodeSentTipRef.value?.show()
+
+  // 发送前强制校验格式
+  if (!validateEmail(email.value)) {
+    return toast.error('邮箱格式无效，请检查')
+  }
 
   request
     .get<{ exist: boolean }>('/api/v1/auth/check', {
       email: email.value,
     })
     .then(({ exist }) => {
-      console.log(exist)
       request
         .post('/api/v1/common/send_code', {
           //  1=登录, 2=注册,
@@ -90,6 +184,7 @@ const handleGetCode = () => {
           type: exist ? 2 : 1,
         })
         .then(() => {
+          CodeSentTipRef.value?.show()
           countdown.value = 60
           const timer = setInterval(() => {
             countdown.value--
@@ -100,6 +195,13 @@ const handleGetCode = () => {
 }
 const router = useRouter()
 const handleLogin = () => {
+  if (!code.value) {
+    toast('请输入验证码')
+    return
+  }
+  if (!validateEmail(email.value)) {
+    return toast.error('邮箱格式无效，请检查')
+  }
   request
     .post<any, { token: string }>('/api/v1/auth/login/email', {
       email: email.value,
diff --git a/src/pages/Home/index.vue b/src/pages/Home/index.vue
index ec80adb..782f775 100644
--- a/src/pages/Home/index.vue
+++ b/src/pages/Home/index.vue
@@ -24,7 +24,7 @@
             <button
               v-else
               @click="openLoginModal"
-              class="flex h-[30px] cursor-pointer items-center justify-center rounded-full bg-[#78788029] px-6 text-sm font-bold backdrop-blur-md transition hover:brightness-110 md:h-[60px] md:w-[220px] md:text-2xl"
+              class="flex h-[30px] cursor-pointer items-center justify-center rounded-full bg-[#78788029] px-6 text-sm font-bold backdrop-blur-md transition hover:brightness-110 md:h-[40px] md:w-[220px] md:text-xl"
             >
               登录 / 注册
             </button>