diff --git a/.gitignore b/.gitignore
index 2d6243f..ac3e6e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 node_modules
 prompt.txt
+dist
\ No newline at end of file
diff --git a/frontend/src/assets/commands.json b/frontend/src/assets/commands.json
new file mode 100644
index 0000000..54fa4ef
--- /dev/null
+++ b/frontend/src/assets/commands.json
@@ -0,0 +1,170 @@
+[
+    {
+        "category": "系统信息",
+        "icon": "Monitor",
+        "commands": [
+            {
+                "name": "查看系统版本",
+                "command": "cat /etc/os-release"
+            },
+            {
+                "name": "查看内核版本",
+                "command": "uname -a"
+            },
+            {
+                "name": "查看 CPU 信息",
+                "command": "lscpu"
+            },
+            {
+                "name": "查看内存使用",
+                "command": "free -h"
+            },
+            {
+                "name": "动态查看资源 (Top)",
+                "command": "top"
+            },
+            {
+                "name": "动态查看资源 (htop)",
+                "command": "htop"
+            },
+            {
+                "name": "查看系统运行时长",
+                "command": "uptime"
+            }
+        ]
+    },
+    {
+        "category": "磁盘与文件",
+        "icon": "Folder",
+        "commands": [
+            {
+                "name": "查看磁盘空间",
+                "command": "df -h"
+            },
+            {
+                "name": "查看当前目录大小",
+                "command": "du -sh *"
+            },
+            {
+                "name": "查找大文件 (>100M)",
+                "command": "find / -type f -size +100M -exec ls -lh {} \\; | awk '{ print $9 \": \" $5 }'"
+            },
+            {
+                "name": "清空文件内容",
+                "command": "> filename.log"
+            },
+            {
+                "name": "查看日志尾部",
+                "command": "tail -f filename.log"
+            }
+        ]
+    },
+    {
+        "category": "网络查验",
+        "icon": "Connection",
+        "commands": [
+            {
+                "name": "查看监听端口",
+                "command": "netstat -tulnp"
+            },
+            {
+                "name": "查看端口占用 (ss)",
+                "command": "ss -tulnp"
+            },
+            {
+                "name": "查看 IP 地址",
+                "command": "ip a"
+            },
+            {
+                "name": "测试网络连通",
+                "command": "ping -c 4 8.8.8.8"
+            },
+            {
+                "name": "追踪路由节点",
+                "command": "traceroute google.com"
+            },
+            {
+                "name": "发起 HTTP 请求",
+                "command": "curl -I https://www.google.com"
+            }
+        ]
+    },
+    {
+        "category": "进程管理",
+        "icon": "Cpu",
+        "commands": [
+            {
+                "name": "查看所有进程",
+                "command": "ps aux"
+            },
+            {
+                "name": "查找 Java 进程",
+                "command": "ps aux | grep java"
+            },
+            {
+                "name": "查找 Node 进程",
+                "command": "ps aux | grep node"
+            },
+            {
+                "name": "查找 Nginx 进程",
+                "command": "ps aux | grep nginx"
+            },
+            {
+                "name": "结束指定的进程",
+                "command": "kill -9 PID"
+            }
+        ]
+    },
+    {
+        "category": "Docker 常用",
+        "icon": "Box",
+        "commands": [
+            {
+                "name": "查看所有容器",
+                "command": "docker ps -a"
+            },
+            {
+                "name": "查看正在运行",
+                "command": "docker ps"
+            },
+            {
+                "name": "查看容器日志",
+                "command": "docker logs -f CONTAINER_ID"
+            },
+            {
+                "name": "查看所有镜像",
+                "command": "docker images"
+            },
+            {
+                "name": "查看 Docker 资源统计",
+                "command": "docker stats"
+            },
+            {
+                "name": "清理悬空资源",
+                "command": "docker system prune -f"
+            }
+        ]
+    },
+    {
+        "category": "安全与防火墙",
+        "icon": "Lock",
+        "commands": [
+            {
+                "name": "查看防火墙状态 (Firewalld)",
+                "command": "systemctl status firewalld"
+            },
+            {
+                "name": "查看防火墙状态 (UFW)",
+                "command": "ufw status"
+            },
+            {
+                "name": "查看登录成功的用户",
+                "command": "last"
+            },
+            {
+                "name": "查看登录失败的记录",
+                "command": "lastb"
+            }
+        ]
+    }
+]
\ No newline at end of file
diff --git a/frontend/src/components/CommandLibrary.vue b/frontend/src/components/CommandLibrary.vue
new file mode 100644
index 0000000..029f298
--- /dev/null
+++ b/frontend/src/components/CommandLibrary.vue
@@ -0,0 +1,542 @@
+<template>
+  <div>
+    <!-- 常用命令抽屉 -->
+    <el-drawer
+      v-model="visible"
+      title="常用命令库"
+      direction="rtl"
+      size="320px"
+      :with-header="true"
+    >
+      <div class="command-list-container">
+        <!-- 搜索框 -->
+        <div class="command-search">
+          <el-input
+            v-model="searchCommandQuery"
+            placeholder="搜索命令名称或内容..."
+            clearable
+            :prefix-icon="Search"
+          />
+        </div>
+
+        <el-tabs v-model="activeCommandTab" class="command-tabs">
+          <!-- 内置命令 Tab -->
+          <el-tab-pane label="内置命令" name="built-in">
+            <el-collapse v-model="activeCommandCategories" class="command-collapse">
+              <el-collapse-item 
+                v-for="(category, index) in filteredCommands" 
+                :key="index"
+                :name="index"
+                v-show="category.commands.length > 0"
+              >
+                <template #title>
+                  <el-icon style="margin-right: 8px;"><component :is="category.icon" /></el-icon>
+                  {{ category.category }}
+                  <span class="cmd-count">({{ category.commands.length }})</span>
+                </template>
+                <div class="command-items">
+                  <div 
+                    v-for="(cmd, cmdIdx) in category.commands" 
+                    :key="cmdIdx"
+                    class="command-item"
+                  >
+                    <div class="cmd-info">
+                      <span class="cmd-name">{{ cmd.name }}</span>
+                      <code class="cmd-code">{{ cmd.command }}</code>
+                    </div>
+                    <div class="cmd-actions">
+                      <el-button 
+                        type="primary" 
+                        size="small" 
+                        plain 
+                        @click="injectCommand(cmd.command)"
+                        title="立即在终端运行"
+                      >
+                        运行
+                      </el-button>
+                      <el-button 
+                        size="small" 
+                        circle
+                        @click="copyCommand(cmd.command)"
+                        title="复制命令"
+                      >
+                        <el-icon><CopyDocument /></el-icon>
+                      </el-button>
+                    </div>
+                  </div>
+                </div>
+              </el-collapse-item>
+            </el-collapse>
+
+            <div v-if="filteredCommands.every(c => c.commands.length === 0)" class="no-commands">
+              <el-empty description="没有找到匹配的内置命令" :image-size="60" />
+            </div>
+          </el-tab-pane>
+
+          <!-- 私有片段 Tab -->
+          <el-tab-pane label="我的片段" name="private">
+            <div class="private-actions">
+              <el-button type="success" size="small" @click="openSnippetDialog()">
+                <el-icon><Plus /></el-icon> 新建片段
+              </el-button>
+              <div class="private-io-actions">
+                <el-button size="small" text @click="exportSnippets" title="导出代码片段">
+                  <el-icon><Download /></el-icon>
+                </el-button>
+                <el-button size="small" text @click="triggerSnippetImport" title="导入代码片段">
+                  <el-icon><Upload /></el-icon>
+                </el-button>
+                <input 
+                  type="file" 
+                  ref="snippetFileInput" 
+                  style="display: none" 
+                  accept=".json" 
+                  @change="importSnippets"
+                >
+              </div>
+            </div>
+
+            <div class="command-collapse private-collapse">
+              <div v-if="filteredPrivateSnippets.length === 0" class="no-commands">
+                <el-empty description="没有匹配的私有片段" :image-size="60" />
+              </div>
+              
+              <div class="command-items">
+                <div 
+                  v-for="(cmd, index) in filteredPrivateSnippets" 
+                  :key="cmd.id"
+                  class="command-item private-item"
+                >
+                  <div class="cmd-info">
+                    <span class="cmd-name">{{ cmd.name }}</span>
+                    <code class="cmd-code">{{ cmd.command }}</code>
+                  </div>
+                  <div class="cmd-actions">
+                    <el-button 
+                      type="primary" 
+                      size="small" 
+                      plain 
+                      @click="injectCommand(cmd.command)"
+                      title="立即在终端运行"
+                    >
+                      运行
+                    </el-button>
+                    <el-button 
+                      size="small" 
+                      circle
+                      @click="copyCommand(cmd.command)"
+                      title="复制命令"
+                    >
+                      <el-icon><CopyDocument /></el-icon>
+                    </el-button>
+                    <el-dropdown trigger="click" @command="(action) => handleSnippetAction(action, cmd)">
+                      <el-button size="small" circle style="margin-left: 8px;">
+                        <el-icon><More /></el-icon>
+                      </el-button>
+                      <template #dropdown>
+                        <el-dropdown-menu>
+                          <el-dropdown-item command="edit">
+                            <el-icon><Edit /></el-icon> 编辑
+                          </el-dropdown-item>
+                          <el-dropdown-item command="delete" style="color: #f56c6c;">
+                            <el-icon><Delete /></el-icon> 删除
+                          </el-dropdown-item>
+                        </el-dropdown-menu>
+                      </template>
+                    </el-dropdown>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </el-tab-pane>
+        </el-tabs>
+
+        <div class="command-tips" v-if="visible">
+          <el-icon><Warning /></el-icon>
+          点击"运行"将立即在当前终端执行该命令
+        </div>
+      </div>
+    </el-drawer>
+
+    <!-- 私有片段编辑弹窗 -->
+    <el-dialog
+      v-model="showSnippetDialog"
+      :title="editingSnippet?.id ? '编辑代码片段' : '新建代码片段'"
+      width="400px"
+      append-to-body
+      destroy-on-close
+    >
+      <el-form ref="snippetFormRef" :model="snippetForm" :rules="snippetRules" label-width="80px">
+        <el-form-item label="片段名称" prop="name">
+          <el-input v-model="snippetForm.name" placeholder="请输入简短的名称" />
+        </el-form-item>
+        <el-form-item label="代码内容" prop="command">
+          <el-input 
+            v-model="snippetForm.command" 
+            type="textarea" 
+            :rows="6" 
+            placeholder="请输入完整的 Linux 命令行或 Shell 脚本片段，支持多行"
+            style="font-family: monospace;"
+          />
+        </el-form-item>
+      </el-form>
+      <template #footer>
+        <span class="dialog-footer">
+          <el-button @click="showSnippetDialog = false">取消</el-button>
+          <el-button type="primary" @click="saveSnippet">保存</el-button>
+        </span>
+      </template>
+    </el-dialog>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, watch } from 'vue'
+import { CopyDocument, Search, Warning, Edit, Delete, Plus, Download, Upload, More, Monitor, Folder, Connection, Cpu, Box, Lock } from '@element-plus/icons-vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import commonCommandsData from '@/assets/commands.json'
+
+const props = defineProps({
+  modelValue: {
+    type: Boolean,
+    default: false
+  }
+})
+
+const emit = defineEmits(['update:modelValue', 'command'])
+
+const visible = computed({
+  get: () => props.modelValue,
+  set: (val) => emit('update:modelValue', val)
+})
+
+// 状态
+const commonCommands = ref(commonCommandsData)
+const activeCommandCategories = ref([0, 1, 2, 3, 4, 5]) // 默认展开所有分类
+const searchCommandQuery = ref('')
+const activeCommandTab = ref('built-in')
+
+// 私有代码片段相关状态
+const PRIVATE_SNIPPETS_KEY = 'webssh_private_snippets'
+const privateSnippets = ref(JSON.parse(localStorage.getItem(PRIVATE_SNIPPETS_KEY) || '[]'))
+const showSnippetDialog = ref(false)
+const snippetFormRef = ref(null)
+const editingSnippet = ref(null)
+const snippetFileInput = ref(null)
+const snippetForm = ref({ name: '', command: '' })
+const snippetRules = {
+  name: [{ required: true, message: '请输入片段名称', trigger: 'blur' }],
+  command: [{ required: true, message: '请输入命令内容', trigger: 'blur' }]
+}
+
+// 监听私有片段变化并保存
+watch(privateSnippets, (newVal) => {
+  localStorage.setItem(PRIVATE_SNIPPETS_KEY, JSON.stringify(newVal))
+}, { deep: true })
+
+// 过滤后的内置命令
+const filteredCommands = computed(() => {
+  const query = searchCommandQuery.value.toLowerCase().trim()
+  if (!query) return commonCommands.value
+
+  return commonCommands.value.map(category => {
+    return {
+      ...category,
+      commands: category.commands.filter(cmd => 
+        cmd.name.toLowerCase().includes(query) || 
+        cmd.command.toLowerCase().includes(query)
+      )
+    }
+  })
+})
+
+// 过滤后的私有片段
+const filteredPrivateSnippets = computed(() => {
+  const query = searchCommandQuery.value.toLowerCase().trim()
+  if (!query) return privateSnippets.value
+  return privateSnippets.value.filter(cmd => 
+    cmd.name.toLowerCase().includes(query) || 
+    cmd.command.toLowerCase().includes(query)
+  )
+})
+
+// 注入命令（发射给父组件）
+const injectCommand = (cmd) => {
+  emit('command', cmd)
+}
+
+// 复制命令
+const copyCommand = async (cmd) => {
+  try {
+    await navigator.clipboard.writeText(cmd)
+    ElMessage.success('命令已复制')
+  } catch (err) {
+    ElMessage.error('复制失败，您的浏览器可能不支持该功能')
+  }
+}
+
+// 私有片段 API
+const openSnippetDialog = (snippet = null) => {
+  editingSnippet.value = snippet
+  if (snippet) {
+    snippetForm.value = { ...snippet }
+  } else {
+    snippetForm.value = { name: '', command: '' }
+  }
+  showSnippetDialog.value = true
+}
+
+const saveSnippet = () => {
+  snippetFormRef.value.validate((valid) => {
+    if (valid) {
+      if (editingSnippet.value?.id) {
+        // 更新
+        const index = privateSnippets.value.findIndex(s => s.id === editingSnippet.value.id)
+        if (index > -1) {
+          privateSnippets.value[index] = { ...editingSnippet.value, ...snippetForm.value }
+        }
+      } else {
+        // 新增
+        privateSnippets.value.unshift({
+          id: Date.now(),
+          ...snippetForm.value
+        })
+      }
+      showSnippetDialog.value = false
+      ElMessage.success('保存成功')
+    }
+  })
+}
+
+const handleSnippetAction = (action, snippet) => {
+  if (action === 'edit') {
+    openSnippetDialog(snippet)
+  } else if (action === 'delete') {
+    ElMessageBox.confirm('确定要删除这个代码片段吗？', '提示', {
+      type: 'warning'
+    }).then(() => {
+      privateSnippets.value = privateSnippets.value.filter(s => s.id !== snippet.id)
+      ElMessage.success('已删除')
+    }).catch(() => {})
+  }
+}
+
+// 私有片段导入/导出
+const exportSnippets = () => {
+  if (privateSnippets.value.length === 0) {
+    return ElMessage.warning('没有可导出的数据')
+  }
+  const dataStr = JSON.stringify(privateSnippets.value, null, 2)
+  const blob = new Blob([dataStr], { type: 'application/json' })
+  const url = window.URL.createObjectURL(blob)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = `webssh_snippets_${new Date().getTime()}.json`
+  a.click()
+  window.URL.revokeObjectURL(url)
+  ElMessage.success('导出成功')
+}
+
+const triggerSnippetImport = () => {
+  snippetFileInput.value.click()
+}
+
+const importSnippets = (e) => {
+  const file = e.target.files[0]
+  if (!file) return
+  
+  const reader = new FileReader()
+  reader.onload = (event) => {
+    try {
+      const data = JSON.parse(event.target.result)
+      if (Array.isArray(data)) {
+        const validData = data.filter(item => item.name && item.command)
+        if (validData.length > 0) {
+          const existingSet = new Set(privateSnippets.value.map(s => s.name.trim() + '|' + s.command.trim()))
+          const newSnippets = []
+          
+          validData.forEach(item => {
+            const key = item.name.trim() + '|' + item.command.trim()
+            if (!existingSet.has(key)) {
+              existingSet.add(key) // 导入文件中自身也可能有重复，加进去防重复
+              newSnippets.push({
+                ...item,
+                id: Date.now() + Math.random() 
+              })
+            }
+          })
+
+          if (newSnippets.length > 0) {
+            privateSnippets.value = [...newSnippets, ...privateSnippets.value]
+            const skipped = validData.length - newSnippets.length
+            if (skipped > 0) {
+              ElMessage.success(`成功导入 ${newSnippets.length} 条代码片段，跳过 ${skipped} 条重复项`)
+            } else {
+              ElMessage.success(`成功导入 ${newSnippets.length} 条代码片段`)
+            }
+          } else {
+            ElMessage.warning('导入的片段均已存在，无需重复导入')
+          }
+        } else {
+          ElMessage.error('文件内容格式不正确或为空')
+        }
+      } else {
+        ElMessage.error('无法解析该文件格式')
+      }
+    } catch (err) {
+      ElMessage.error('读取文件失败，请确保是合法的 JSON 文件')
+    }
+    e.target.value = ''
+  }
+  reader.readAsText(file)
+}
+</script>
+
+<style scoped>
+/* 常用命令抽屉样式 */
+.command-list-container {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.command-search {
+  padding: 0 0 16px 0;
+  position: sticky;
+  top: 0;
+  background-color: #fff;
+  z-index: 5;
+}
+
+.command-tabs {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+:deep(.command-tabs .el-tabs__content) {
+  flex: 1;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+:deep(.command-tabs .el-tab-pane) {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.command-collapse {
+  flex: 1;
+  overflow-y: auto;
+  border-top: none;
+}
+.command-collapse::-webkit-scrollbar {
+  width: 6px;
+}
+.command-collapse::-webkit-scrollbar-thumb {
+  background-color: #dcdfe6;
+  border-radius: 3px;
+}
+
+.cmd-count {
+  margin-left: 6px;
+  font-size: 12px;
+  color: #909399;
+}
+
+.private-actions {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 0 0 12px 0;
+  border-bottom: 1px solid #ebeef5;
+}
+
+.private-io-actions {
+  display: flex;
+  gap: 4px;
+}
+
+.private-collapse {
+  margin-top: 12px;
+}
+
+.private-item {
+  border-left: 3px solid #67c23a;
+}
+
+.command-items {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 4px 0 12px 0;
+}
+
+.command-item {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 12px;
+  background-color: #f8f9fa;
+  border-radius: 6px;
+  border: 1px solid #e4e7ed;
+  transition: all 0.3s;
+}
+
+.command-item:hover {
+  border-color: var(--el-color-primary-light-5);
+  box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.05);
+}
+
+.cmd-info {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  width: 100%;
+}
+
+.cmd-name {
+  font-size: 14px;
+  font-weight: 500;
+  color: #303133;
+}
+
+.cmd-code {
+  font-family: 'Courier New', monospace;
+  font-size: 12px;
+  color: #e6a23c;
+  background-color: #2d2d30;
+  padding: 6px 10px;
+  border-radius: 4px;
+  word-break: break-all;
+  border: 1px solid #3e3e42;
+}
+
+.cmd-actions {
+  display: flex;
+  justify-content: flex-end;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+}
+
+.command-tips {
+  margin-top: 16px;
+  padding: 12px;
+  background-color: #f0f9eb;
+  color: #67c23a;
+  border-radius: 4px;
+  font-size: 13px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  flex-shrink: 0;
+}
+
+.no-commands {
+  padding: 40px 0;
+}
+</style>
diff --git a/frontend/src/components/TerminalStatusBar.vue b/frontend/src/components/TerminalStatusBar.vue
new file mode 100644
index 0000000..0aefb6a
--- /dev/null
+++ b/frontend/src/components/TerminalStatusBar.vue
@@ -0,0 +1,126 @@
+<template>
+  <el-footer class="terminal-footer" v-if="isConnected">
+    <div class="status-bar">
+      <span class="status-item">
+        <el-icon><Connection /></el-icon>
+        已连接
+      </span>
+      <span class="status-item status-item-host">
+        <el-icon><Monitor /></el-icon>
+        {{ connectionDisplay }}
+      </span>
+      <span 
+        class="status-item clickable" 
+        @click="$emit('toggle-sftp')"
+        :class="{ active: showSftp }"
+      >
+        <el-icon><Folder /></el-icon>
+        文件管理器
+      </span>
+      <span 
+        class="status-item clickable" 
+        @click="$emit('show-commands')"
+        title="常用 Linux 命令库"
+      >
+        <el-icon><Tickets /></el-icon>
+        常用命令
+      </span>
+    </div>
+  </el-footer>
+</template>
+
+<script setup>
+import { Connection, Monitor, Folder, Tickets } from '@element-plus/icons-vue'
+
+defineProps({
+  isConnected: {
+    type: Boolean,
+    default: false
+  },
+  connectionDisplay: {
+    type: String,
+    default: ''
+  },
+  showSftp: {
+    type: Boolean,
+    default: false
+  }
+})
+
+defineEmits(['toggle-sftp', 'show-commands'])
+</script>
+
+<style scoped>
+.terminal-footer {
+  flex-shrink: 0;
+  background: linear-gradient(90deg, #1e1e1e 0%, #252526 50%, #1e1e1e 100%);
+  border-top: 1px solid rgba(255, 255, 255, 0.08);
+  height: 48px;
+  display: flex;
+  align-items: center;
+  padding: 0 24px;
+  color: #a0a0a0;
+  font-size: 13px;
+  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
+  position: relative;
+  z-index: 10;
+}
+
+.status-bar {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  width: 100%;
+}
+
+.status-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 13px;
+  color: #b0b0b0;
+  padding: 6px 14px;
+  border-radius: 6px;
+  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
+  background-color: rgba(255, 255, 255, 0.03);
+  border: 1px solid rgba(255, 255, 255, 0.05);
+}
+
+.status-item:first-child {
+  color: #67c23a;
+  background-color: rgba(103, 194, 58, 0.1);
+  border-color: rgba(103, 194, 58, 0.2);
+  font-weight: 600;
+}
+
+.status-item-host {
+  color: #ffffff !important;
+  font-family: 'Courier New', monospace;
+  background-color: rgba(0, 0, 0, 0.25) !important;
+  border-color: rgba(255, 255, 255, 0.1) !important;
+}
+
+.status-item.clickable {
+  cursor: pointer;
+}
+
+.status-item.clickable:hover {
+  background-color: rgba(64, 158, 255, 0.15);
+  border-color: rgba(64, 158, 255, 0.4);
+  color: #409eff;
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+}
+
+.status-item.active {
+  background-color: rgba(64, 158, 255, 0.2);
+  border-color: rgba(64, 158, 255, 0.5);
+  color: #409eff;
+  font-weight: 600;
+  box-shadow: 0 0 12px rgba(64, 158, 255, 0.15);
+}
+
+.status-item .el-icon {
+  font-size: 15px;
+}
+</style>
diff --git a/frontend/src/views/QuickConnectTerminal.vue b/frontend/src/views/QuickConnectTerminal.vue
index fc10389..fbc0635 100644
--- a/frontend/src/views/QuickConnectTerminal.vue
+++ b/frontend/src/views/QuickConnectTerminal.vue
@@ -83,14 +83,15 @@
           </div>
           
           <!-- 连接提示 -->
-          <div v-if="isConnecting" class="connection-status">
-            <el-alert 
-              title="正在连接服务器..." 
-              type="info" 
-              show-icon 
-              :closable="false"
-              center
-            />
+          <div v-if="isConnecting" class="connection-status-overlay">
+            <div class="connecting-card">
+              <div class="spinner-container">
+                <div class="pulse-ring"></div>
+                <el-icon class="is-loading" size="32" color="#409eff"><Loading /></el-icon>
+              </div>
+              <h3 class="connecting-title">正在建立安全连接</h3>
+              <p class="connecting-desc">正在向目标服务器发起 SSH 连接请求...</p>
+            </div>
           </div>
           
           <!-- 连接状态提示 -->
@@ -114,27 +115,17 @@
       </el-container>
       
       <!-- 状态栏 -->
-      <el-footer class="terminal-footer" v-if="isConnected">
-        <div class="status-bar">
-          <span class="status-item">
-            <el-icon><Connection /></el-icon>
-            已连接
-          </span>
-          <span class="status-item">
-            <el-icon><Monitor /></el-icon>
-            {{ connectionDisplay }}
-          </span>
-          <span 
-            class="status-item clickable" 
-            @click="toggleSftpPanel"
-            :class="{ active: showSftp }"
-          >
-            <el-icon><Folder /></el-icon>
-            文件管理器
-          </span>
-        </div>
-      </el-footer>
+      <TerminalStatusBar 
+        :is-connected="isConnected"
+        :connection-display="connectionDisplay"
+        :show-sftp="showSftp"
+        @toggle-sftp="toggleSftpPanel"
+        @show-commands="showCommands = true"
+      />
     </el-container>
+
+    <!-- 常用命令抽屉组件 -->
+    <CommandLibrary v-model="showCommands" @command="injectCommand" />
   </div>
 </template>
 
@@ -144,11 +135,14 @@ import { useRouter } from 'vue-router'
 import { Terminal } from 'xterm'
 import { FitAddon } from 'xterm-addon-fit'
 import { WebLinksAddon } from 'xterm-addon-web-links'
-import { ArrowLeft, Connection, Close, Delete, Monitor, Folder, Document, Edit, DocumentCopy, DocumentAdd, Select } from '@element-plus/icons-vue'
+import 'xterm/css/xterm.css'
+import { ArrowLeft, Connection, Close, Delete, Monitor, Folder, Document, Edit, DocumentCopy, DocumentAdd, Select, Tickets, Loading } from '@element-plus/icons-vue'
 import { useAuthStore } from '@/stores/auth'
 import { useQuickSftp } from '@/composables/useQuickSftp'
 import { ElMessage } from 'element-plus'
 import QuickSftpFileManager from '@/components/QuickSftpFileManager.vue'
+import CommandLibrary from '@/components/CommandLibrary.vue'
+import TerminalStatusBar from '@/components/TerminalStatusBar.vue'
 import { io } from 'socket.io-client'
 
 const props = defineProps({
@@ -171,6 +165,19 @@ const terminalRef = ref(null)
 const showSftp = ref(false)
 const sftpPanelWidth = ref(350)
 
+// 常用命令显示控制
+const showCommands = ref(false)
+
+// 向终端注入并执行命令
+const injectCommand = (cmd) => {
+  if (socket && isConnected.value) {
+    socket.emit('ssh-input', cmd + '\n')
+    focusTerminal()
+  } else {
+    ElMessage.warning('终端尚未连接')
+  }
+}
+
 // 右键菜单相关
 const contextMenu = ref({
   visible: false,
@@ -713,7 +720,7 @@ onUnmounted(() => {
 
 <style scoped>
 .terminal-page {
-  height: 100vh;
+  height: 100%;
   overflow: hidden;
   background-color: #1e1e1e;
   display: flex;
@@ -847,6 +854,73 @@ onUnmounted(() => {
   text-align: center;
 }
 
+/* 现代化连接状态遮罩层 */
+.connection-status-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: rgba(30, 30, 30, 0.75);
+  backdrop-filter: blur(8px);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  z-index: 50;
+  animation: fadeIn 0.3s ease;
+}
+
+.connecting-card {
+  background: linear-gradient(145deg, #2a2a2d, #222225);
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  border-radius: 16px;
+  padding: 40px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
+  transform: translateY(-20px);
+}
+
+.spinner-container {
+  position: relative;
+  width: 80px;
+  height: 80px;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  margin-bottom: 24px;
+}
+
+.pulse-ring {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  border-radius: 50%;
+  border: 2px solid #409eff;
+  animation: pulse 1.5s cubic-bezier(0.25, 0.8, 0.25, 1) infinite;
+  opacity: 0;
+}
+
+@keyframes pulse {
+  0% { transform: scale(0.5); opacity: 0.8; }
+  100% { transform: scale(1.5); opacity: 0; }
+}
+
+.connecting-title {
+  color: #ffffff;
+  font-size: 18px;
+  font-weight: 500;
+  margin: 0 0 8px 0;
+  letter-spacing: 0.5px;
+}
+
+.connecting-desc {
+  color: #909399;
+  font-size: 13px;
+  margin: 0;
+}
+
 .prompt-content {
   color: #909399;
 }
@@ -894,8 +968,126 @@ onUnmounted(() => {
   cursor: not-allowed;
 }
 
-.menu-item.disabled:hover {
-  background-color: transparent;
+.menu-item.clickable:hover {
+  background-color: #f0f2f5;
+  color: var(--el-color-primary);
+}
+
+/* 常用命令抽屉样式 */
+.command-list-container {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.command-search {
+  padding: 0 0 16px 0;
+  position: sticky;
+  top: 0;
+  background-color: #fff;
+  z-index: 5;
+}
+
+.command-collapse {
+  flex: 1;
+  overflow-y: auto;
+  border-top: none;
+}
+.command-collapse::-webkit-scrollbar {
+  width: 6px;
+}
+.command-collapse::-webkit-scrollbar-thumb {
+  background-color: #dcdfe6;
+  border-radius: 3px;
+}
+
+.cmd-count {
+  margin-left: 6px;
+  font-size: 12px;
+  color: #909399;
+}
+
+.command-tabs {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+:deep(.command-tabs .el-tabs__content) {
+  flex: 1;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+:deep(.command-tabs .el-tab-pane) {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.private-actions {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 0 0 12px 0;
+  border-bottom: 1px solid #ebeef5;
+}
+
+.private-io-actions {
+  display: flex;
+  gap: 4px;
+}
+
+.private-collapse {
+  margin-top: 12px;
+}
+
+.private-item {
+  border-left: 3px solid #67c23a;
+}
+
+.command-items {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 4px 0 12px 0;
+}
+
+.command-item {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 12px;
+  background-color: #f8f9fa;
+  border-radius: 6px;
+  border: 1px solid #e4e7ed;
+  transition: all 0.3s;
+}
+
+.command-item:hover {
+  border-color: var(--el-color-primary-light-5);
+  box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.05);
+}
+
+.cmd-info {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  width: 100%;
+}
+
+.cmd-name {
+  font-size: 14px;
+  font-weight: 500;
+  color: #303133;
+}
+
+.cmd-name {
+  font-size: 14px;
+  font-weight: 500;
+  color: #303133;
 }
 
 .menu-divider {
@@ -909,50 +1101,7 @@ onUnmounted(() => {
   width: 16px;
 }
 
-.terminal-footer {
-  flex-shrink: 0;
-  background-color: #2d2d30;
-  border-top: 1px solid #3e3e42;
-  height: 40px;
-  display: flex;
-  align-items: center;
-  padding: 0 20px;
-  color: #909399;
-  font-size: 12px;
-}
 
-.status-bar {
-  display: flex;
-  align-items: center;
-  gap: 20px;
-  width: 100%;
-}
-
-.status-item {
-  display: flex;
-  align-items: center;
-  gap: 5px;
-  font-size: 13px;
-  color: #606266;
-}
-
-.status-item.clickable {
-  cursor: pointer;
-  transition: color 0.2s;
-}
-
-.status-item.clickable:hover {
-  color: #409eff;
-}
-
-.status-item.active {
-  color: #409eff;
-  font-weight: 500;
-}
-
-.status-item .el-icon {
-  font-size: 14px;
-}
 
 /* XTerm.js 样式调整 */
 :deep(.xterm) {
diff --git a/frontend/src/views/Terminal.vue b/frontend/src/views/Terminal.vue
index fe34ab8..4e815eb 100644
--- a/frontend/src/views/Terminal.vue
+++ b/frontend/src/views/Terminal.vue
@@ -3,71 +3,16 @@
     <el-container class="terminal-container">
       <!-- 顶部工具栏 -->
       <el-header class="terminal-header">
-        <div class="header-left">
-          <el-button @click="$router.back()" size="small">
-            <el-icon><ArrowLeft /></el-icon>
-            返回
-          </el-button>
+        <div class="header-back" @click="$router.back()">
+          <span class="back-dot dot-red"></span>
+          <el-icon class="back-icon"><ArrowLeft /></el-icon>
+          <span class="back-text">返回</span>
+        </div>
+        <div class="header-title">
           <span class="server-name">{{ currentServer?.name || '快速连接' }}</span>
-          <span class="server-info">{{ currentServer?.host }}:{{ currentServer?.port }}</span>
-        </div>
-        
-        <div class="header-right">
-          <!-- SFTP文件管理按钮 -->
-          <el-button 
-            v-if="terminalStore.isConnected"
-            size="small"
-            :type="showSftp ? 'primary' : 'default'"
-            @click="toggleSftpPanel"
-          >
-            <el-icon><Folder /></el-icon>
-            {{ showSftp ? '隐藏文件' : '文件管理' }}
-          </el-button>
-          
-          <el-button-group>
-            <el-button 
-              v-if="!terminalStore.isConnected && !terminalStore.isConnecting"
-              type="primary" 
-              size="small"
-              @click="connectToServer"
-            >
-              <el-icon><Connection /></el-icon>
-              连接
-            </el-button>
-            
-            <el-button 
-              v-if="terminalStore.isConnecting"
-              type="warning" 
-              size="small"
-              :loading="true"
-            >
-              连接中...
-            </el-button>
-            
-            <el-button 
-              v-if="terminalStore.isConnected"
-              type="danger" 
-              size="small"
-              @click="terminalStore.disconnect"
-            >
-              <el-icon><Close /></el-icon>
-              断开
-            </el-button>
-          </el-button-group>
-          
-          <el-button size="small" @click="clearTerminal">
-            <el-icon><Delete /></el-icon>
-            清屏
-          </el-button>
-          <el-button size="small" @click="copySelected" class="copy-button">
-            <el-icon><Document /></el-icon>
-            复制选中
-          </el-button>
-          <el-button size="small" @click="pasteFromClipboard">
-            <el-icon><Edit /></el-icon>
-            粘贴剪贴板
-          </el-button>
+          <span class="server-host" v-if="currentServer">{{ currentServer.host }}:{{ currentServer.port }}</span>
         </div>
+        <div class="header-right-placeholder"></div>
       </el-header>
       
       <!-- 主内容区域 -->
@@ -174,23 +119,17 @@
       </el-container>
       
       <!-- 状态栏 -->
-      <el-footer class="terminal-footer" v-if="terminalStore.isConnected">
-        <div class="status-bar">
-          <span class="status-item">
-            <el-icon><Connection /></el-icon>
-            已连接
-          </span>
-          <span class="status-item">
-            <el-icon><Monitor /></el-icon>
-            {{ currentServer?.host }}:{{ currentServer?.port }}
-          </span>
-          <span class="status-item">
-            <el-icon><User /></el-icon>
-            {{ currentServer?.username }}
-          </span>
-        </div>
-      </el-footer>
+      <TerminalStatusBar 
+        :is-connected="terminalStore.isConnected"
+        :connection-display="currentServer ? `${currentServer.host}:${currentServer.port}` : ''"
+        :show-sftp="showSftp"
+        @toggle-sftp="toggleSftpPanel"
+        @show-commands="showCommands = true"
+      />
     </el-container>
+
+    <!-- 常用命令抽屉组件 -->
+    <CommandLibrary v-model="showCommands" @command="injectCommand" />
   </div>
 </template>
 
@@ -200,12 +139,16 @@ import { useRoute } from 'vue-router'
 import { Terminal } from 'xterm'
 import { FitAddon } from 'xterm-addon-fit'
 import { WebLinksAddon } from 'xterm-addon-web-links'
+import 'xterm/css/xterm.css'
 import { ArrowLeft, Connection, Close, Delete, Monitor, Folder, User, Document, Edit, DocumentCopy, DocumentAdd, Select } from '@element-plus/icons-vue'
 import { useTerminalStore } from '@/stores/terminal'
 import { useServersStore } from '@/stores/servers'
 import { useAuthStore } from '@/stores/auth'
 import { useSftpStore } from '@/stores/sftp'
 import SftpFileManager from '@/components/SftpFileManager.vue'
+import TerminalStatusBar from '@/components/TerminalStatusBar.vue'
+import CommandLibrary from '@/components/CommandLibrary.vue'
+import { ElMessage } from 'element-plus'
 
 const route = useRoute()
 const terminalStore = useTerminalStore()
@@ -217,6 +160,17 @@ const terminalRef = ref()
 const currentServer = ref(null)
 const showSftp = ref(false)
 const sftpPanelWidth = ref(350)
+const showCommands = ref(false)
+
+// 注入命令（发送给终端）
+const injectCommand = (cmd) => {
+  if (terminalStore.isConnected) {
+    terminalStore.sendInput(cmd + '\n')
+    if (term) term.focus()
+  } else {
+    ElMessage.warning('当前没用连通的终端')
+  }
+}
 
 // 右键菜单相关
 const contextMenu = ref({
@@ -662,7 +616,6 @@ const resetConnectedState = () => {
     term.reset()
     term.focus()
     // 连接提示
-    term.write('\x1b[32mSSH连接已建立，可以开始输入命令\x1b[0m\r\n\r\n')
     term.write('\x1b[?25h')
     if (typeof term.scrollToTop === 'function') {
       term.scrollToTop()
@@ -702,8 +655,6 @@ watch(() => terminalStore.isConnected, (isConnected, wasConnected) => {
       
       // 延迟写入欢迎信息，确保终端准备好
       setTimeout(() => {
-        term.write('\x1b[32mSSH连接已建立，可以开始输入命令\x1b[0m\r\n\r\n')
-        
         // 确保光标可见，并将滚动条保持在顶部
         term.write('\x1b[?25h') // 显示光标
         
@@ -812,35 +763,83 @@ onUnmounted(() => {
 }
 
 .terminal-header {
-  background-color: #2d2d30;
-  border-bottom: 1px solid #3e3e42;
+  background: linear-gradient(180deg, #3a3a3c 0%, #2d2d30 100%);
+  border-bottom: 1px solid #1a1a1a;
   display: flex;
   justify-content: space-between;
   align-items: center;
-  padding: 0 20px;
+  padding: 0 16px;
   color: white;
+  height: 38px !important;
+  user-select: none;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
+  position: relative;
 }
 
-.header-left {
+.header-back {
   display: flex;
   align-items: center;
-  gap: 16px;
+  gap: 5px;
+  cursor: pointer;
+  padding: 5px 10px;
+  border-radius: 6px;
+  color: #e0e0e0;
+  font-size: 14px;
+  font-weight: 500;
+  transition: background 0.15s ease, color 0.15s ease;
+  z-index: 1;
+}
+
+.header-back:hover {
+  background: rgba(255,255,255,0.12);
+  color: #ffffff;
+}
+
+.back-dot {
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  flex-shrink: 0;
+}
+
+.dot-red {
+  background: #FF5F57;
+  box-shadow: 0 0 6px rgba(255, 95, 87, 0.6);
+}
+
+.back-icon {
+  font-size: 16px;
+}
+
+.back-text {
+  font-size: 14px;
+  letter-spacing: 0.2px;
+}
+
+.header-title {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  position: absolute;
+  left: 50%;
+  transform: translateX(-50%);
 }
 
 .server-name {
   font-weight: 600;
-  font-size: 16px;
+  font-size: 13px;
+  color: #e0e0e0;
+  letter-spacing: 0.3px;
 }
 
-.server-info {
-  color: #909399;
-  font-size: 14px;
+.server-host {
+  font-size: 11px;
+  color: #888;
+  margin-top: 1px;
 }
 
-.header-right {
-  display: flex;
-  align-items: center;
-  gap: 12px;
+.header-right-placeholder {
+  width: 60px;
 }
 
 .main-content {
@@ -991,34 +990,7 @@ onUnmounted(() => {
   width: 16px;
 }
 
-.terminal-footer {
-  flex-shrink: 0; /* 确保 footer 占据固定高度，不压缩也不覆盖终端 */
-  background-color: #2d2d30;
-  border-top: 1px solid #3e3e42;
-  height: 40px;
-  display: flex;
-  align-items: center;
-  padding: 0 20px;
-  color: #909399;
-  font-size: 12px;
-}
 
-.status-bar {
-  display: flex;
-  align-items: center;
-  gap: 20px;
-  width: 100%;
-}
-
-.status-item {
-  display: flex;
-  align-items: center;
-  gap: 4px;
-}
-
-.status-item .el-icon {
-  font-size: 14px;
-}
 
 /* XTerm.js 样式调整 */
 :deep(.xterm) {
diff --git a/frontend/src/views/TerminalNew.vue b/frontend/src/views/TerminalNew.vue
index 18f312f..6912df0 100644
--- a/frontend/src/views/TerminalNew.vue
+++ b/frontend/src/views/TerminalNew.vue
@@ -92,13 +92,16 @@
               </div>
             </div>
             
-            <!-- 新标签页按钮 -->
-            <div 
-              class="new-tab-button"
-              @click="createNewTab"
-              title="新标签页"
-            >
-              <el-icon><Plus /></el-icon>
+            <!-- 右侧常用命令按钮 -->
+            <div class="header-actions-right">
+              <div 
+                class="command-library-btn"
+                @click="showCommands = true"
+                title="常用命令库"
+              >
+                <el-icon><Tickets /></el-icon>
+                <span>常用命令</span>
+              </div>
             </div>
           </div>
           
@@ -145,7 +148,7 @@
                 
                 <!-- 连接状态提示 -->
                 <div 
-                  v-if="!tab.connected && !tab.connecting" 
+                  v-if="!tab.connected && !tab.connecting && !tab.error" 
                   class="connection-prompt"
                 >
                   <div class="prompt-content">
@@ -195,6 +198,9 @@
         </div>
       </el-main>
     </el-container>
+
+    <!-- 常用命令抽屉组件 -->
+    <CommandLibrary v-model="showCommands" @command="injectCommand" />
   </div>
 </template>
 
@@ -204,6 +210,7 @@ import { useRouter } from 'vue-router'
 import { Terminal } from 'xterm'
 import { FitAddon } from 'xterm-addon-fit'
 import { WebLinksAddon } from 'xterm-addon-web-links'
+import 'xterm/css/xterm.css'
 import { 
   Connection, 
   SuccessFilled, 
@@ -213,13 +220,15 @@ import {
   Plus, 
   Monitor,
   Folder,
-  Back
+  Back,
+  Tickets
 } from '@element-plus/icons-vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { useTerminalStore } from '@/stores/terminal'
 import { useServersStore } from '@/stores/servers'
 import { useAuthStore } from '@/stores/auth'
 import QuickConnect from './QuickConnect.vue'
+import CommandLibrary from '@/components/CommandLibrary.vue'
 import { io } from 'socket.io-client'
 
 const authStore = useAuthStore()
@@ -232,6 +241,14 @@ const tabs = ref([])
 const activeTabId = ref(null)
 const contextMenu = ref({ visible: false, x: 0, y: 0, tabId: null })
 
+// 常用命令显示控制
+const showCommands = ref(false)
+
+// 当前活动的终端页签
+const activeTab = computed(() => {
+  return tabs.value.find(tab => tab.id === activeTabId.value)
+})
+
 // 计算属性：树型结构数据
 const serverTreeData = computed(() => {
   const groups = {}
@@ -265,10 +282,15 @@ const treeProps = {
   label: 'label'
 }
 
-// 计算属性：当前活动页签
-const activeTab = computed(() => {
-  return tabs.value.find(tab => tab.id === activeTabId.value)
-})
+// 注入命令（发射给当前活动的终端）
+const injectCommand = (cmd) => {
+  if (activeTab.value && activeTab.value.type === 'terminal' && activeTab.value.connected && activeTab.value.socket) {
+    activeTab.value.socket.emit('ssh-input', cmd + '\n')
+    focusTerminal(activeTab.value.id)
+  } else {
+    ElMessage.warning('当前没用连通的终端')
+  }
+}
 
 // 获取服务器状态
 const getServerStatus = (serverId) => {
@@ -488,7 +510,6 @@ const clearFromContextMenu = (tabId) => {
   if (!tab || !tab.terminal) return
   tab.terminal.reset()
   tab.terminal.focus()
-  tab.terminal.write('\x1b[32mSSH连接已建立，可以开始输入命令\x1b[0m\r\n\r\n')
   tab.terminal.write('\x1b[?25h')
   const terminalEl = document.querySelector(`[data-tab-id="${tab.id}"]`)
   const viewportEl = terminalEl?.querySelector('.xterm-viewport')
@@ -622,7 +643,6 @@ const performConnection = async (tab, serverId) => {
       tab.error = null
       if (tab.terminal) {
         tab.terminal.clear()
-        tab.terminal.write('\x1b[32mSSH连接已建立，可以开始输入命令\x1b[0m\r\n\r\n')
       }
     })
     // 终端输出
@@ -680,6 +700,13 @@ const performConnection = async (tab, serverId) => {
 // 切换页签
 const switchTab = (tabId) => {
   activeTabId.value = tabId
+  const tab = tabs.value.find(t => t.id === tabId)
+  if (tab && tab.terminal && tab.fitAddon) {
+    nextTick(() => {
+      tab.fitAddon.fit()
+      tab.terminal.focus()
+    })
+  }
 }
 
 // 关闭页签
@@ -820,7 +847,6 @@ const performQuickConnection = async (tab, connectionInfo) => {
         tab.connecting = false
         if (tab.terminal) {
           tab.terminal.clear()
-          tab.terminal.write('\x1b[32mSSH连接已建立，可以开始输入命令\x1b[0m\r\n\r\n')
         }
         unwatch()
       }
@@ -1094,10 +1120,14 @@ onUnmounted(() => {
 .tabs-main {
   padding: 0 !important;
   background-color: #1e1e1e;
+  overflow: hidden !important;
+  display: flex;
+  flex-direction: column;
 }
 
 .tabs-container {
-  height: 100%;
+  flex: 1;
+  min-height: 0;
   display: flex;
   flex-direction: column;
 }
@@ -1118,6 +1148,37 @@ onUnmounted(() => {
   overflow-y: hidden;
 }
 
+.header-actions-right {
+  display: flex;
+  align-items: center;
+  padding: 0 16px;
+  background-color: transparent;
+  margin-left: auto;
+  z-index: 10;
+}
+
+.command-library-btn {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  color: #ffffff;
+  font-size: 13px;
+  font-weight: 500;
+  padding: 6px 14px;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
+  background: linear-gradient(135deg, #3a86ff 0%, #2575fc 100%);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  box-shadow: 0 2px 8px rgba(58, 134, 255, 0.25);
+}
+
+.command-library-btn:hover {
+  background: linear-gradient(135deg, #4b92ff 0%, #3682fc 100%);
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(58, 134, 255, 0.4);
+}
+
 .tab-item {
   display: flex;
   align-items: center;
@@ -1170,21 +1231,29 @@ onUnmounted(() => {
   display: flex;
   align-items: center;
   justify-content: center;
-  width: 40px;
-  height: 40px;
-  color: #909399;
+  width: 32px;
+  height: 28px;
+  margin-left: 8px;
+  margin-top: 6px;
+  color: #a0a0a0;
   cursor: pointer;
-  transition: all 0.2s ease;
-  border-left: 1px solid #3e3e42;
+  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
+  border-radius: 6px;
+  background-color: rgba(255, 255, 255, 0.05);
+  flex-shrink: 0;
 }
 
 .new-tab-button:hover {
-  background-color: #323233;
+  background-color: #3a86ff;
   color: #ffffff;
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(58, 134, 255, 0.3);
 }
 
 .tabs-content {
   flex: 1;
+  height: calc(100% - 40px);
+  min-height: 0;
   position: relative;
   overflow: hidden;
 }
@@ -1203,15 +1272,18 @@ onUnmounted(() => {
 }
 
 .terminal-wrapper {
-  position: relative;
-  width: 100%;
-  height: 100%;
+  position: absolute;
+  top: 10px;
+  left: 10px;
+  right: 10px;
+  bottom: 20px;
 }
 
 .terminal {
   width: 100%;
   height: 100%;
   padding: 0;
+  box-sizing: border-box;
   cursor: text;
   position: relative;
 }