diff --git a/frontend/src/views/Dashboard.vue b/frontend/src/views/Dashboard.vue
index 5d81426..80f2d1c 100644
--- a/frontend/src/views/Dashboard.vue
+++ b/frontend/src/views/Dashboard.vue
@@ -53,6 +53,15 @@
           </el-button>
         </div>
         
+        <div class="server-search">
+          <el-input
+            v-model="searchQuery"
+            placeholder="搜索服务器..."
+            clearable
+            :prefix-icon="Search"
+          />
+        </div>
+        
         <div class="server-list">
           <el-tree
             :data="serverTree"
@@ -60,6 +69,7 @@
             :default-expanded-keys="expandedKeys"
             :expand-on-click-node="false"
             @node-click="handleServerClick"
+            @node-dblclick="handleServerDblClick"
             @node-expand="handleNodeExpand"
             @node-collapse="handleNodeCollapse"
           >
@@ -178,7 +188,7 @@
 import { ref, computed, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { ElMessage, ElMessageBox } from 'element-plus'
-import { Plus, Folder, Monitor, Connection, Lock, More, Edit, Delete, User, SwitchButton, UserFilled } from '@element-plus/icons-vue'
+import { Plus, Folder, Monitor, Connection, Lock, More, Edit, Delete, User, SwitchButton, UserFilled, Search } from '@element-plus/icons-vue'
 import { useServersStore } from '@/stores/servers'
 import { useAuthStore } from '@/stores/auth'
 import ServerForm from '@/components/ServerForm.vue'
@@ -191,6 +201,7 @@ const showAddServerDialog = ref(false)
 const showEditServerDialog = ref(false)
 const editingServerId = ref(null)
 const editingServerName = ref('')
+const searchQuery = ref('')
 
 // 分组展开状态持久化 (sessionStorage)
 const EXPANDED_KEYS_STORAGE_KEY = 'webssh_dashboard_expanded_keys'
@@ -216,8 +227,18 @@ const handleNodeCollapse = (data) => {
 const serverTree = computed(() => {
   const groups = {}
   
+  let filteredServers = serversStore.servers
+  if (searchQuery.value) {
+    const q = searchQuery.value.toLowerCase()
+    filteredServers = filteredServers.filter(server => {
+      return server.name?.toLowerCase().includes(q) || 
+             server.host?.toLowerCase().includes(q) ||
+             server.group_name?.toLowerCase().includes(q)
+    })
+  }
+  
   // 按分组组织服务器
-  serversStore.servers.forEach(server => {
+  filteredServers.forEach(server => {
     const groupName = server.group_name || 'Default'
     if (!groups[groupName]) {
       groups[groupName] = []
@@ -243,9 +264,18 @@ const serverTree = computed(() => {
 })
 
 // 处理服务器点击
-const handleServerClick = (data) => {
+const handleServerClick = (data, node) => {
   if (data.type === 'server') {
     router.push(`/terminal/${data.serverId}`)
+  } else if (data.type === 'group' && node) {
+    node.expanded = !node.expanded
+  }
+}
+
+// 处理服务器双击
+const handleServerDblClick = (data, node) => {
+  if (data.type === 'group' && node) {
+    node.expanded = !node.expanded
   }
 }
 
@@ -393,9 +423,11 @@ onMounted(async () => {
 }
 
 .sidebar {
-  background: white;
-  border-right: 1px solid #e4e7ed;
-  padding: 20px;
+  background: rgba(255, 255, 255, 0.65);
+  backdrop-filter: blur(20px);
+  -webkit-backdrop-filter: blur(20px);
+  border-right: 1px solid rgba(0, 0, 0, 0.1);
+  padding: 24px 20px;
   display: flex;
   flex-direction: column;
 }
@@ -404,13 +436,39 @@ onMounted(async () => {
   display: flex;
   justify-content: space-between;
   align-items: center;
-  margin-bottom: 20px;
+  margin-bottom: 24px;
 }
 
 .sidebar-header h2 {
   margin: 0;
-  color: #333;
+  color: #1c1c1e;
   font-size: 18px;
+  font-weight: 600;
+  letter-spacing: -0.5px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+}
+
+.server-search {
+  margin-bottom: 20px;
+}
+
+.server-search :deep(.el-input__wrapper) {
+  background-color: rgba(0, 0, 0, 0.05);
+  border-radius: 8px;
+  box-shadow: none !important;
+  border: 1px solid rgba(0, 0, 0, 0.08);
+  transition: all 0.2s;
+}
+
+.server-search :deep(.el-input__wrapper.is-focus) {
+  background-color: rgba(255, 255, 255, 1);
+  border-color: #007AFF;
+  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2) !important;
+}
+
+.server-search :deep(.el-input__inner) {
+  color: #1c1c1e;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
 }
 
 .server-list {
@@ -420,11 +478,48 @@ onMounted(async () => {
 }
 
 /* 树形组件样式调整 */
+:deep(.el-tree) {
+  background: transparent;
+}
+
 :deep(.el-tree-node__content) {
-  height: 56px !important;
-  padding: 0 16px !important;
-  margin-bottom: 0 !important;
-  transition: all 0.3s ease !important;
+  height: auto !important;
+  padding: 4px 8px !important;
+  margin-bottom: 2px !important;
+  border-radius: 8px;
+  transition: all 0.2s ease !important;
+}
+
+:deep(.el-tree-node__content:hover) {
+  background-color: rgba(0, 0, 0, 0.06) !important;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content:has(.server-node)) {
+  background-color: #007AFF !important;
+  color: white;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content:has(.group-node)) {
+  background-color: transparent !important;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content .server-node .server-name),
+:deep(.el-tree-node.is-current > .el-tree-node__content .server-node .server-address) {
+  color: white !important;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content .server-node .server-name:hover) {
+  color: white !important;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content .server-actions) {
+  background-color: transparent;
+  border-color: rgba(255, 255, 255, 0.4);
+  color: white;
+}
+
+:deep(.el-tree-node.is-current > .el-tree-node__content .server-actions:hover) {
+  background-color: rgba(255, 255, 255, 0.2);
 }
 
 :deep(.el-tree-node) {
@@ -435,16 +530,20 @@ onMounted(async () => {
   display: flex;
   align-items: center;
   width: 100%;
-  padding: 6px 0;
+  padding: 2px 0;
   min-height: 48px;
   box-sizing: border-box;
 }
 
 .group-node {
   font-weight: 600;
-  color: #333;
-  padding: 8px 0;
-  min-height: 40px;
+  color: #1c1c1e;
+  padding: 8px 4px;
+  min-height: auto;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+  display: flex;
+  align-items: center;
+  gap: 8px;
 }
 
 .server-node {
@@ -452,55 +551,55 @@ onMounted(async () => {
   justify-content: space-between;
   align-items: center;
   width: 100%;
-  padding: 8px;
-  border-radius: 4px;
-  transition: all 0.3s;
-  min-height: 56px;
+  padding: 6px;
+  border-radius: 6px;
+  min-height: auto;
   box-sizing: border-box;
 }
 
 .server-node:hover {
-  background-color: #f5f7fa;
+  background-color: transparent; /* rely on node content hover */
 }
 
 .server-info-wrapper {
   flex: 1;
-  margin: 0 8px;
+  margin: 0 10px;
   min-width: 0;
 }
 
 .server-name {
   font-weight: 500;
   font-size: 14px;
-  color: #333;
+  color: #1c1c1e;
   cursor: pointer;
   margin-bottom: 2px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
 }
 
 .server-name:hover {
-  color: #409eff;
+  color: #007AFF;
 }
 
 .server-address {
   font-size: 11px;
-  color: #999;
-  opacity: 0.8;
+  color: rgba(28, 28, 30, 0.6);
+  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
 }
 
 .server-actions {
   padding: 4px 8px;
-  border: 1px solid #dcdfe6;
-  border-radius: 4px;
-  background-color: white;
-  color: #606266;
-  transition: all 0.3s;
+  border: 1px solid rgba(0, 0, 0, 0.1);
+  border-radius: 6px;
+  background-color: rgba(255, 255, 255, 0.8);
+  color: #1c1c1e;
+  transition: all 0.2s;
   white-space: nowrap;
 }
 
 .server-actions:hover {
-  border-color: #409eff;
-  color: #409eff;
-  background-color: #f0f7ff;
+  border-color: #007AFF;
+  color: #007AFF;
+  background-color: rgba(0, 122, 255, 0.1);
 }
 
 .action-text {
diff --git a/frontend/src/views/QuickConnect.vue b/frontend/src/views/QuickConnect.vue
index 335291c..2d568f6 100644
--- a/frontend/src/views/QuickConnect.vue
+++ b/frontend/src/views/QuickConnect.vue
@@ -681,52 +681,56 @@ onMounted(() => {
   display: flex; /* Ensure the children (aside and main) flow correctly */
 }
 
-/* 左侧栏样式 */
-.history-aside {
-  background: white;
-  border-right: 1px solid #e4e7ed;
-  display: flex;
-  flex-direction: column;
-}
-
-.aside-header {
-  padding: 15px 20px;
-  border-bottom: 1px solid #ebeef5;
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-}
-
-.history-search {
-  padding: 10px 20px;
-  border-bottom: 1px solid #ebeef5;
-}
-
-.aside-title {
-}
-
 /* 左侧历史树 */
 .history-aside {
-  background: white;
-  border-right: 1px solid #e4e7ed;
+  background: rgba(255, 255, 255, 0.65);
+  backdrop-filter: blur(20px);
+  -webkit-backdrop-filter: blur(20px);
+  border-right: 1px solid rgba(0, 0, 0, 0.1);
   display: flex;
   flex-direction: column;
   overflow: hidden;
+  padding: 8px 12px;
 }
 
 .aside-header {
   display: flex;
   justify-content: space-between;
   align-items: center;
-  padding: 16px 16px 12px;
-  border-bottom: 1px solid #f0f0f0;
+  padding: 12px 6px;
+  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
   flex-shrink: 0;
 }
 
+.history-search {
+  padding: 12px 4px 8px;
+}
+
+.history-search :deep(.el-input__wrapper) {
+  background-color: rgba(0, 0, 0, 0.05);
+  border-radius: 8px;
+  box-shadow: none !important;
+  border: 1px solid rgba(0, 0, 0, 0.08);
+  transition: all 0.2s;
+}
+
+.history-search :deep(.el-input__wrapper.is-focus) {
+  background-color: rgba(255, 255, 255, 1);
+  border-color: #007AFF;
+  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2) !important;
+}
+
+.history-search :deep(.el-input__inner) {
+  color: #1c1c1e;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+}
+
 .aside-title {
-  font-size: 15px;
+  font-size: 16px;
   font-weight: 600;
-  color: #303133;
+  color: #1c1c1e;
+  letter-spacing: -0.5px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
 }
 
 .aside-actions {
@@ -758,20 +762,21 @@ onMounted(() => {
 .tree-node {
   display: flex;
   align-items: center;
-  gap: 6px;
+  gap: 8px;
   width: 100%;
-  padding: 2px 0;
+  padding: 4px 6px;
   font-size: 13px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
 }
 
 .tree-folder-icon {
-  color: #e6a23c;
+  color: #1c1c1e;
   font-size: 16px;
   flex-shrink: 0;
 }
 
 .tree-server-icon {
-  color: #409eff;
+  color: #007AFF;
   font-size: 14px;
   flex-shrink: 0;
 }
@@ -781,11 +786,13 @@ onMounted(() => {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
-  color: #303133;
+  color: #1c1c1e;
+  font-weight: 500;
 }
 
 .tree-node.is-leaf .tree-node-label {
-  color: #606266;
+  color: #1c1c1e;
+  font-weight: normal;
 }
 
 .tree-node-actions {
@@ -808,20 +815,41 @@ onMounted(() => {
 .tree-delete-btn {
   width: 20px !important;
   height: 20px !important;
+  background-color: transparent;
+  border-color: rgba(255, 255, 255, 0.4);
 }
 
 /* Element Tree 深度覆盖 */
+:deep(.el-tree) {
+  background: transparent;
+}
+
 :deep(.el-tree-node__content) {
-  height: 36px;
-  padding-right: 8px !important;
+  height: auto !important;
+  padding: 4px 6px !important;
+  margin-bottom: 2px !important;
+  border-radius: 8px;
+  transition: all 0.2s ease !important;
 }
 
 :deep(.el-tree-node__content:hover) {
-  background-color: #f5f7fa;
+  background-color: rgba(0, 0, 0, 0.06) !important;
 }
 
-:deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content) {
-  background-color: #ecf5ff;
+/* Tree Selection Highlights */
+:deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content:has(.is-leaf)) {
+  background-color: #007AFF !important;
+  color: white;
+}
+
+:deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content:has(.is-leaf) .tree-node-label),
+:deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content:has(.is-leaf) .tree-server-icon) {
+  color: white !important;
+}
+
+:deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content:has(.is-leaf) .tree-delete-btn:hover) {
+  background-color: rgba(255, 255, 255, 0.2);
+  color: white;
 }
 
 /* 右侧表单 */
diff --git a/frontend/src/views/TerminalNew.vue b/frontend/src/views/TerminalNew.vue
index 42ed972..0406680 100644
--- a/frontend/src/views/TerminalNew.vue
+++ b/frontend/src/views/TerminalNew.vue
@@ -15,6 +15,16 @@
           </el-button>
         </div>
         
+        <!-- 搜索框 -->
+        <div class="server-search">
+          <el-input
+            v-model="searchQuery"
+            placeholder="搜索服务器..."
+            clearable
+            :prefix-icon="Search"
+          />
+        </div>
+        
         <!-- 服务器树型结构 -->
         <div class="server-tree">
           <el-tree
@@ -221,7 +231,8 @@ import {
   Monitor,
   Folder,
   Back,
-  Tickets
+  Tickets,
+  Search
 } from '@element-plus/icons-vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { useTerminalStore } from '@/stores/terminal'
@@ -241,6 +252,9 @@ const tabs = ref([])
 const activeTabId = ref(null)
 const contextMenu = ref({ visible: false, x: 0, y: 0, tabId: null })
 
+// 搜索文本
+const searchQuery = ref('')
+
 // 常用命令显示控制
 const showCommands = ref(false)
 
@@ -253,7 +267,18 @@ const activeTab = computed(() => {
 const serverTreeData = computed(() => {
   const groups = {}
   
-  serversStore.servers.forEach(server => {
+  // 过滤服务器列表
+  let filteredServers = serversStore.servers
+  if (searchQuery.value) {
+    const q = searchQuery.value.toLowerCase()
+    filteredServers = filteredServers.filter(server => {
+      return server.name?.toLowerCase().includes(q) || 
+             server.host?.toLowerCase().includes(q) ||
+             server.group_name?.toLowerCase().includes(q)
+    })
+  }
+
+  filteredServers.forEach(server => {
     const groupName = server.group_name || '默认分组'
     if (!groups[groupName]) {
       groups[groupName] = []
@@ -536,24 +561,28 @@ const hideHelperTextarea = (tabId) => {
 }
 
 // 处理树节点单击（直接创建新页签）
-const handleTreeNodeClick = (data) => {
+const handleTreeNodeClick = (data, node) => {
   if (data.type === 'server') {
     const server = serversStore.servers.find(s => s.id === data.serverId)
     if (server) {
       // 单击时直接创建新页签
       createNewTabForServer(server)
     }
+  } else if (data.type === 'group' && node) {
+    node.expanded = !node.expanded
   }
 }
 
 // 处理树节点双击（功能与单击相同，提供一致性）
-const handleTreeNodeDblClick = (data) => {
+const handleTreeNodeDblClick = (data, node) => {
   if (data.type === 'server') {
     const server = serversStore.servers.find(s => s.id === data.serverId)
     if (server) {
       // 双击时也创建新页签
       createNewTabForServer(server)
     }
+  } else if (data.type === 'group' && node) {
+    node.expanded = !node.expanded
   }
 }
 
@@ -985,6 +1014,21 @@ onUnmounted(() => {
   letter-spacing: 0.5px;
 }
 
+.server-search {
+  padding: 12px 16px;
+  border-bottom: 1px solid rgba(62, 62, 66, 0.6);
+  background: rgba(30, 30, 30, 0.4);
+}
+
+.server-search :deep(.el-input__wrapper) {
+  background-color: rgba(0, 0, 0, 0.2);
+  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
+}
+
+.server-search :deep(.el-input__inner) {
+  color: #e0e0e0;
+}
+
 /* 树型结构样式 */
 .server-tree {
   flex: 1;