diff --git a/src/components/layout/AppHeader.vue b/src/components/layout/AppHeader.vue
index 49e5d12..4a7c983 100644
--- a/src/components/layout/AppHeader.vue
+++ b/src/components/layout/AppHeader.vue
@@ -42,9 +42,24 @@
 
     <!-- 搜索框 -->
     <div class="search-section">
-      <div class="search-box">
+      <div class="search-box" ref="searchBoxRef">
         <img src="/nav-icons/搜索.png" alt="" class="search-icon" />
-        <input type="text" placeholder="请输入感兴趣的课程" class="search-input" />
+        <input
+          type="text"
+          placeholder="请输入感兴趣的课程"
+          class="search-input"
+          v-model="searchKeyword"
+          @focus="showSearchDropdown = true"
+          @keyup.enter="handleSearch"
+        />
+
+        <!-- 搜索下拉框 -->
+        <SearchDropdown
+          :visible="showSearchDropdown"
+          @search="handleSearchFromDropdown"
+          @close="showSearchDropdown = false"
+          ref="searchDropdownRef"
+        />
       </div>
     </div>
 
@@ -136,6 +151,7 @@ import { NDropdown, NIcon } from 'naive-ui'
 import LoginModal from '@/components/auth/LoginModal.vue'
 import RegisterModal from '@/components/auth/RegisterModal.vue'
 import SafeAvatar from '@/components/common/SafeAvatar.vue'
+import SearchDropdown from '@/components/search/SearchDropdown.vue'
 
 const router = useRouter()
 const route = useRoute()
@@ -200,6 +216,12 @@ const registerModalVisible = ref(false)
 const showLanguageDropdown = ref(false)
 const languageSwitcherRef = ref<HTMLElement | null>(null)
 
+// 搜索相关
+const searchKeyword = ref('')
+const showSearchDropdown = ref(false)
+const searchBoxRef = ref<HTMLElement | null>(null)
+const searchDropdownRef = ref<InstanceType<typeof SearchDropdown> | null>(null)
+
 // 语言选项配置
 const languageOptions = computed(() => [
   {
@@ -278,6 +300,36 @@ const getLanguageName = (lang: string): string => {
   return languageMap[lang] || '中文'
 }
 
+// 搜索相关方法
+const handleSearch = () => {
+  if (searchKeyword.value.trim()) {
+    performSearch(searchKeyword.value.trim())
+  }
+}
+
+const handleSearchFromDropdown = (keyword: string) => {
+  searchKeyword.value = keyword
+  performSearch(keyword)
+}
+
+const performSearch = (keyword: string) => {
+  console.log('🔍 执行搜索:', keyword)
+
+  // 保存搜索记录到最近搜索
+  if (searchDropdownRef.value) {
+    searchDropdownRef.value.saveRecentSearch(keyword)
+  }
+
+  // 跳转到搜索结果页面
+  router.push({
+    path: '/search',
+    query: { q: keyword }
+  })
+
+  // 关闭搜索下拉框
+  showSearchDropdown.value = false
+}
+
 
 
 const handleLearningCenter = () => {
@@ -634,10 +686,15 @@ const handleAuthSuccess = () => {
 
 // 修复未定义的handleClickOutside
 const handleClickOutside = (event: MouseEvent) => {
-  // 这里只处理语言下拉的关闭，其他弹窗由自身控制
+  // 处理语言下拉的关闭
   if (languageSwitcherRef.value && !languageSwitcherRef.value.contains(event.target as Node)) {
     showLanguageDropdown.value = false
   }
+
+  // 处理搜索下拉的关闭
+  if (searchBoxRef.value && !searchBoxRef.value.contains(event.target as Node)) {
+    showSearchDropdown.value = false
+  }
 }
 
 // 生命周期钩子
@@ -863,6 +920,7 @@ watch(() => route.path, () => {
   .search-box {
     /* border-left: 1px solid #ececec;
                     border-right: 1px solid #ececec; */
+    position: relative;
     display: flex;
     align-items: center;
     padding: 22px 16px;
diff --git a/src/components/search/SearchDropdown.vue b/src/components/search/SearchDropdown.vue
new file mode 100644
index 0000000..2abc815
--- /dev/null
+++ b/src/components/search/SearchDropdown.vue
@@ -0,0 +1,384 @@
+<template>
+  <div class="search-dropdown" v-if="visible">
+    <div class="search-container">
+      <!-- 热门搜索 -->
+      <div class="search-section">
+        <div class="section-header">
+          <h3 class="section-title">热门搜索</h3>
+        </div>
+        <div class="hot-search-list">
+          <div 
+            v-for="(item, index) in hotSearchList" 
+            :key="item.id || index"
+            class="hot-search-item"
+            @click="handleSearchClick(item.keyword)"
+          >
+            <img src="https://lanhu-oss-proxy.lanhuapp.com/SketchPng86b5edcdd0d6d6bd7275b4c04630b14d852bddab1f172c0abf2f0e35aec35768" alt="搜索" class="search-icon" />
+            <span class="search-text">{{ item.keyword }}</span>
+            <span class="search-count">{{ item.count }}+课程</span>
+          </div>
+        </div>
+      </div>
+
+      <!-- 最近搜索 -->
+      <div class="search-section" v-if="isLoggedIn && recentSearchList.length > 0">
+        <div class="section-header">
+          <h3 class="section-title">最近搜索</h3>
+          <button class="clear-all-btn" @click="clearAllRecentSearch">删除全部</button>
+        </div>
+        <div class="recent-search-list">
+          <div 
+            v-for="(item, index) in recentSearchList" 
+            :key="index"
+            class="recent-search-item"
+            @click="handleSearchClick(item)"
+          >
+            <img src="https://lanhu-oss-proxy.lanhuapp.com/SketchPng2fed0d5a23626a57e891038b8d9898f3e7e3d997c740e810d14cba77dbf65bd9" alt="最近搜索" class="recent-icon" />
+            <span class="recent-text">{{ item }}</span>
+            <button class="delete-btn" @click.stop="deleteRecentSearch(index)">
+              <img
+                class="delete-icon"
+                referrerpolicy="no-referrer"
+                src="https://lanhu-oss-proxy.lanhuapp.com/SketchPng9091e6ef98dfc2513c9530794244c6258e5360d316fcc770d6309e2fb41a0665"
+                alt="删除"
+              />
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { useUserStore } from '@/stores/user'
+import { ApiRequest } from '@/api/request'
+
+// Props
+interface Props {
+  visible: boolean
+}
+
+const props = defineProps<Props>()
+
+// Emits
+const emit = defineEmits<{
+  search: [keyword: string]
+  close: []
+}>()
+
+// Store
+const userStore = useUserStore()
+
+// 响应式数据
+const hotSearchList = ref<any[]>([])
+const recentSearchList = ref<string[]>([])
+
+// 计算属性
+const isLoggedIn = computed(() => !!userStore.user)
+
+// 热门搜索接口类型
+interface HotSearchItem {
+  id?: string
+  keyword: string
+  count: number
+}
+
+// 获取热门搜索数据
+const fetchHotSearch = async () => {
+  try {
+    console.log('🚀 获取热门搜索数据...')
+    const response = await ApiRequest.get<HotSearchItem[]>('/aiol/index/hot_search')
+    console.log('📊 热门搜索API响应:', response)
+    
+    if (response.data) {
+      const apiResponse = response.data as any
+      
+      // 检查是否是包装格式 {success, code, result}
+      if (typeof apiResponse === 'object' && ('success' in apiResponse || 'code' in apiResponse)) {
+        const success = apiResponse.success === true || apiResponse.code === 200 || apiResponse.code === 0
+        if (success && apiResponse.result) {
+          hotSearchList.value = apiResponse.result
+        } else {
+          console.error('❌ 获取热门搜索失败:', apiResponse.message || '未知错误')
+          // 使用模拟数据
+          hotSearchList.value = getMockHotSearch()
+        }
+      } else if (Array.isArray(apiResponse)) {
+        // 直接是数组数据
+        hotSearchList.value = apiResponse
+      } else {
+        console.error('❌ 热门搜索数据格式错误')
+        hotSearchList.value = getMockHotSearch()
+      }
+    } else {
+      console.error('❌ 热门搜索响应为空')
+      hotSearchList.value = getMockHotSearch()
+    }
+    
+    console.log('✅ 热门搜索数据加载完成:', hotSearchList.value)
+  } catch (error) {
+    console.error('❌ 获取热门搜索异常:', error)
+    // 使用模拟数据
+    hotSearchList.value = getMockHotSearch()
+  }
+}
+
+// 模拟热门搜索数据
+const getMockHotSearch = (): HotSearchItem[] => {
+  return [
+    { id: '1', keyword: 'IT与软件', count: 10 },
+    { id: '2', keyword: '设计', count: 10 },
+    { id: '3', keyword: '数字营销', count: 10 }
+  ]
+}
+
+// 获取最近搜索记录
+const loadRecentSearch = () => {
+  if (isLoggedIn.value) {
+    const userId = userStore.user?.id || userStore.user?.username || 'default'
+    const storageKey = `recent_search_${userId}`
+    const stored = localStorage.getItem(storageKey)
+    if (stored) {
+      try {
+        recentSearchList.value = JSON.parse(stored)
+      } catch (error) {
+        console.error('解析最近搜索记录失败:', error)
+        recentSearchList.value = []
+      }
+    }
+  }
+}
+
+// 保存最近搜索记录
+const saveRecentSearch = (keyword: string) => {
+  if (!isLoggedIn.value || !keyword.trim()) return
+  
+  const userId = userStore.user?.id || userStore.user?.username || 'default'
+  const storageKey = `recent_search_${userId}`
+  
+  // 移除重复项并添加到开头
+  const filtered = recentSearchList.value.filter(item => item !== keyword)
+  recentSearchList.value = [keyword, ...filtered].slice(0, 10) // 最多保存10条
+  
+  // 保存到localStorage
+  localStorage.setItem(storageKey, JSON.stringify(recentSearchList.value))
+}
+
+// 处理搜索点击
+const handleSearchClick = (keyword: string) => {
+  console.log('🔍 搜索关键词:', keyword)
+  saveRecentSearch(keyword)
+  emit('search', keyword)
+  emit('close')
+}
+
+// 删除单个最近搜索
+const deleteRecentSearch = (index: number) => {
+  recentSearchList.value.splice(index, 1)
+  
+  if (isLoggedIn.value) {
+    const userId = userStore.user?.id || userStore.user?.username || 'default'
+    const storageKey = `recent_search_${userId}`
+    localStorage.setItem(storageKey, JSON.stringify(recentSearchList.value))
+  }
+}
+
+// 清空所有最近搜索
+const clearAllRecentSearch = () => {
+  recentSearchList.value = []
+  
+  if (isLoggedIn.value) {
+    const userId = userStore.user?.id || userStore.user?.username || 'default'
+    const storageKey = `recent_search_${userId}`
+    localStorage.removeItem(storageKey)
+  }
+}
+
+// 组件挂载时加载数据
+onMounted(() => {
+  fetchHotSearch()
+  loadRecentSearch()
+})
+
+// 暴露方法给父组件
+defineExpose({
+  saveRecentSearch,
+  loadRecentSearch
+})
+</script>
+
+<style scoped>
+.search-dropdown {
+  position: absolute;
+  top: 100%;
+  left: -33%;
+  z-index: 1000;
+  margin-top: -8px;
+}
+
+.search-container {
+  width: 704px;
+  background: #FFFFFF;
+  box-shadow: 0px 2px 24px 0px rgba(220, 220, 220, 0.5);
+  border-radius: 8px;
+  padding: 24px;
+}
+
+.search-section {
+  margin-bottom: 32px;
+}
+
+.search-section:last-child {
+  margin-bottom: 0;
+}
+
+.section-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 16px;
+}
+
+.section-title {
+  width: 118px;
+  height: 22px;
+  font-family: PingFangSC, PingFang SC, -apple-system, BlinkMacSystemFont, sans-serif;
+  font-weight: 400;
+  font-size: 16px;
+  color: #000000;
+  line-height: 22px;
+  text-align: left;
+  font-style: normal;
+  margin: 0;
+}
+
+.clear-all-btn {
+  background: none;
+  border: none;
+  color: #999;
+  font-size: 14px;
+  cursor: pointer;
+  padding: 4px 8px;
+  border-radius: 4px;
+  transition: all 0.2s;
+}
+
+.clear-all-btn:hover {
+  background-color: #f5f5f5;
+  color: #666;
+}
+
+.hot-search-list {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.hot-search-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 8px 12px;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.hot-search-item:hover {
+  background-color: #f8f9fa;
+}
+
+.search-icon {
+  width: 16px;
+  height: 16px;
+  object-fit: contain;
+}
+
+.search-text {
+  flex: 1;
+  font-family: PingFangSC, PingFang SC, -apple-system, BlinkMacSystemFont, sans-serif;
+  font-weight: 400;
+  font-size: 16px;
+  color: #000000;
+  line-height: 22px;
+}
+
+.search-count {
+  font-size: 14px;
+  color: #1890ff;
+  background-color: #e6f7ff;
+  padding: 2px 8px;
+  border-radius: 12px;
+}
+
+.recent-search-list {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.recent-search-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 8px 12px;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.recent-search-item:hover {
+  background-color: #f8f9fa;
+}
+
+.recent-icon {
+  width: 16px;
+  height: 16px;
+  object-fit: contain;
+}
+
+.recent-text {
+  flex: 1;
+  width: 480px;
+  height: 24px;
+  font-family: PingFangSC, PingFang SC, -apple-system, BlinkMacSystemFont, sans-serif;
+  font-weight: 400;
+  font-size: 16px;
+  color: #666666;
+  line-height: 24px;
+  text-align: left;
+  font-style: normal;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.delete-btn {
+  background: none;
+  border: none;
+  cursor: pointer;
+  padding: 4px;
+  border-radius: 4px;
+  transition: all 0.2s;
+  opacity: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.recent-search-item:hover .delete-btn {
+  opacity: 1;
+}
+
+.delete-btn:hover {
+  background-color: #f5f5f5;
+}
+
+.delete-icon {
+  width: 14px;
+  height: 14px;
+  object-fit: contain;
+}
+</style>
diff --git a/src/views/Login.vue b/src/views/Login.vue
index d93ed5a..4a59465 100644
--- a/src/views/Login.vue
+++ b/src/views/Login.vue
@@ -114,7 +114,7 @@
         <div class="form-footer">
           <p class="agreement-text">
             {{ isRegisterMode ? '登录即代表阅读并同意' : '登录即同意我们的用户协议' }}
-            <n-button text type="primary" size="small">《服务协议和隐私政策》</n-button>
+            <n-button text type="primary" size="small" @click="goToServiceAgreement">《服务协议和隐私政策》</n-button>
           </p>
         </div>
       </div>
@@ -336,6 +336,11 @@ const handleSubmit = async () => {
     userStore.isLoading = false
   }
 }
+
+// 跳转到服务协议页面
+const goToServiceAgreement = () => {
+  router.push('/service-agreement')
+}
 </script>
 
 <style scoped>