diff --git a/src/components/InitServiceChooser.vue b/src/components/InitServiceChooser.vue
index b8ab94d..078cabd 100644
--- a/src/components/InitServiceChooser.vue
+++ b/src/components/InitServiceChooser.vue
@@ -6,149 +6,201 @@
     <div class="init-container">
       <div class="init-header">
         <div class="title">
-          选择要使用的服务
+          欢迎使用 Classworks
         </div>
         <div class="subtitle">
-          左侧为 Classworks 管理端，右侧为 Classworks KV 控制台
+          请选择你的使用方式
         </div>
       </div>
 
-      <div class="card-row">
-        <!-- 左：Classworks 卡片（展开操作） -->
+      <!-- 主要选择卡片 -->
+      <div class="main-card-row">
+        <!-- 初次使用 -->
         <v-card
-          class="service-card gradient-left"
-          elevation="8"
+          class="main-service-card gradient-new clickable"
+          elevation="4"
+          @click="showGuideDialog = true"
         >
           <v-card-item>
-            <div class="card-title">
-              <div>
-                <div class="text-h6">
-                  Classworks
+            <div class="card-horizontal-layout">
+              <div class="card-icon-wrapper">
+                <v-icon
+                  size="48"
+                  color="primary"
+                >
+                  mdi-new-box
+                </v-icon>
+              </div>
+              <div class="card-content">
+                <div class="text-h6 font-weight-bold">
+                  初次使用
                 </div>
-                <div class="text-caption text-medium-emphasis">
-                  适用于班级大屏的作业板工具
+                <div class="text-body-2 text-medium-emphasis mt-1">
+                  了解 Classworks KV 并开始使用
                 </div>
               </div>
             </div>
           </v-card-item>
-          <v-card-text>
-            <div class="action-grid">
-              <v-btn
-                color="primary"
-                prepend-icon="mdi-flash"
-                @click="handleAutoAuthorize"
-              >
-                开始使用
-              </v-btn>
-              <v-btn
-                color="secondary"
-                variant="tonal"
-                prepend-icon="mdi-key"
-                @click="showManual = !showManual"
-              >
-                输入 Token
-              </v-btn>
-              <v-btn
-                variant="text"
-                prepend-icon="mdi-laptop"
-                @click="useLocalMode"
-              >
-                使用本地模式
-              </v-btn>
-            </div>
-
-            <v-expand-transition>
-              <div
-                v-show="showManual"
-                class="mt-4"
-              >
-                <v-text-field
-                  v-model="manualToken"
-                  label="KV 授权 Token"
-                  placeholder="粘贴从授权页面获取的 Token"
-                  hide-details
-                  clearable
-                />
-                <v-alert
-                  v-if="verifyError"
-                  type="error"
-                  variant="tonal"
-                  class="mt-2"
-                >
-                  {{ verifyError }}
-                </v-alert>
-                <div class="d-flex mt-2">
-                  <v-spacer />
-                  <v-btn
-                    :disabled="!manualToken || verifying"
-                    :loading="verifying"
-                    color="primary"
-                    @click="saveManualToken"
-                  >
-                    保存 Token
-                  </v-btn>
-                </div>
-              </div>
-            </v-expand-transition>
-          </v-card-text>
         </v-card>
 
-        <!-- 右：Classworks KV 卡片（跳转 /kv） -->
+        <!-- 已注册设备 -->
         <v-card
-          class="service-card gradient-right clickable"
-          elevation="8"
-          @click="goKv"
+          class="main-service-card gradient-registered clickable"
+          elevation="4"
+          @click="showDeviceAuthDialog = true"
         >
           <v-card-item>
-            <div class="card-title">
-              <div>
-                <div class="text-h6">
+            <div class="card-horizontal-layout">
+              <div class="card-icon-wrapper">
+                <v-icon
+                  size="48"
+                  color="success"
+                >
+                  mdi-account-check
+                </v-icon>
+              </div>
+              <div class="card-content">
+                <div class="text-h6 font-weight-bold">
+                  已注册
+                </div>
+                <div class="text-body-2 text-medium-emphasis mt-1">
+                  使用设备 Namespace 登录
+                </div>
+              </div>
+            </div>
+          </v-card-item>
+        </v-card>
+
+        <!-- Classworks KV 控制台 -->
+        <v-card
+          class="main-service-card clickable"
+          elevation="4"
+          @click="openClassworksKV"
+        >
+          <v-card-item>
+            <div class="card-horizontal-layout">
+              <div class="card-icon-wrapper">
+                <v-icon
+                  size="48"
+                  color="info"
+                >
+                  mdi-database-cog
+                </v-icon>
+              </div>
+              <div class="card-content">
+                <div class="text-h6 font-weight-bold">
                   Classworks KV
                 </div>
-                <div class="text-caption text-medium-emphasis">
-                  云原生键值数据库
+                <div class="text-body-2 text-medium-emphasis mt-1">
+                  打开云端控制台管理数据
                 </div>
               </div>
             </div>
           </v-card-item>
-          <v-card-text>
-            <div class="mt-4">
-              <v-btn
-                variant="text"
-                class="text-none"
-                append-icon="mdi-arrow-right"
-                rounded="xl"
-                @click.stop="goKv"
-              >
-                打开 Classworks KV
-              </v-btn>
-            </div>
-          </v-card-text>
         </v-card>
       </div>
+  <div class="options-buttons">
+          <v-btn
+            variant="tonal"
+            prepend-icon="mdi-laptop"
+            size="small"
+            @click="useLocalMode"
+          >
+            使用本地模式
+          </v-btn>
+          <v-btn
+            variant="tonal"
+            prepend-icon="mdi-flash"
+            size="small"
+            @click="handleAutoAuthorize"
+          >
+            授权码式授权（弃用）
+          </v-btn>
+          <v-btn
+            variant="tonal"
+            prepend-icon="mdi-key"
+            size="small"
+            @click="showTokenDialog = true"
+          >
+            输入 Token
+          </v-btn>
+          <v-btn
+            variant="tonal"
+            prepend-icon="mdi-code-tags"
+            size="small"
+            @click="showAlternativeCodeDialog = true"
+          >
+            输入替代代码
+          </v-btn>
+        </div>
+
 
       <div class="footer-hint">
         完成授权后可使用作业同步、考试看板等在线功能。
       </div>
     </div>
+
+    <!-- 对话框 -->
+    <v-dialog
+      v-model="showGuideDialog"
+      max-width="600"
+    >
+      <FirstTimeGuide @close="showGuideDialog = false" />
+    </v-dialog>
+
+    <v-dialog
+      v-model="showDeviceAuthDialog"
+      max-width="500"
+    >
+      <DeviceAuthDialog
+        :show-cancel="true"
+        @success="handleAuthSuccess"
+        @cancel="showDeviceAuthDialog = false"
+      />
+    </v-dialog>
+
+    <v-dialog
+      v-model="showTokenDialog"
+      max-width="500"
+    >
+      <TokenInputDialog
+        :show-cancel="true"
+        @success="handleTokenSuccess"
+        @cancel="showTokenDialog = false"
+      />
+    </v-dialog>
+
+    <v-dialog
+      v-model="showAlternativeCodeDialog"
+      max-width="500"
+    >
+      <AlternativeCodeDialog
+        :show-cancel="true"
+        @submit="handleAlternativeCodeSubmit"
+        @cancel="showAlternativeCodeDialog = false"
+      />
+    </v-dialog>
   </div>
 </template>
 
 <script setup>
 import { ref, computed, onMounted } from 'vue'
-import { useRouter } from 'vue-router'
 import { getSetting, setSetting } from '@/utils/settings'
-import axios from '@/axios/axios'
+import DeviceAuthDialog from './auth/DeviceAuthDialog.vue'
+import TokenInputDialog from './auth/TokenInputDialog.vue'
+import AlternativeCodeDialog from './auth/AlternativeCodeDialog.vue'
+import FirstTimeGuide from './auth/FirstTimeGuide.vue'
 
-const router = useRouter()
 const emit = defineEmits(['done'])
 
 // 控制显示：仅首页且无 kvToken（且 provider 不是 kv-local）显示
 const visible = ref(false)
-const showManual = ref(false)
-const manualToken = ref('')
-const verifying = ref(false)
-const verifyError = ref('')
+
+// 对话框控制
+const showGuideDialog = ref(false)
+const showDeviceAuthDialog = ref(false)
+const showTokenDialog = ref(false)
+const showAlternativeCodeDialog = ref(false)
 
 const provider = computed(() => getSetting('server.provider'))
 const isKvProvider = computed(() => provider.value === 'kv-server' || provider.value === 'classworkscloud')
@@ -179,37 +231,22 @@ const handleAutoAuthorize = () => {
   window.location.href = url
 }
 
-const saveManualToken = async () => {
-  if (!manualToken.value || verifying.value) return
-  verifyError.value = ''
-  verifying.value = true
-  try {
-    const serverUrl = getSetting('server.domain')
-    if (!serverUrl) throw new Error('未配置服务器域名')
+const handleAuthSuccess = () => {
+  showDeviceAuthDialog.value = false
+  evaluateVisibility()
+  emit('done')
+}
 
-    await axios.get(`${serverUrl}/kv/_info`, {
-      headers: {
-        Accept: 'application/json',
-        'x-app-token': manualToken.value,
-      },
-    })
+const handleTokenSuccess = () => {
+  showTokenDialog.value = false
+  evaluateVisibility()
+  emit('done')
+}
 
-    // 验证通过再保存
-    setSetting('server.kvToken', manualToken.value)
-    evaluateVisibility()
-    emit('done')
-  } catch (err) {
-    const status = err?.response?.status
-    if (status === 401 || status === 403) {
-      verifyError.value = 'Token 无效或无权限，请确认后重试'
-    } else if (status === 404) {
-      verifyError.value = '命名空间不存在或服务器未就绪'
-    } else {
-      verifyError.value = err?.response?.data?.message || err?.message || '验证失败，请稍后重试'
-    }
-  } finally {
-    verifying.value = false
-  }
+const handleAlternativeCodeSubmit = (code) => {
+  console.log('替代代码:', code)
+  // TODO: 实现替代代码逻辑
+  showAlternativeCodeDialog.value = false
 }
 
 const useLocalMode = () => {
@@ -220,23 +257,137 @@ const useLocalMode = () => {
   emit('done')
 }
 
-const goKv = () => {
-  router.push('/kv')
+const openClassworksKV = () => {
+  window.open(getSetting('server.authDomain'), '_blank')
 }
 </script>
 
 <style scoped>
-.init-overlay { position: relative; }
-.init-container { max-width: 1080px; margin: 24px auto; padding: 8px 16px; }
-.init-header .title { font-size: 20px; font-weight: 600; }
-.init-header .subtitle { margin-top: 4px; font-size: 13px; opacity: .75; }
-.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
-.service-card { min-height: 220px; }
-.card-title { display: flex; align-items: center; }
-.clickable { cursor: pointer; }
-.gradient-left { background: linear-gradient(135deg, rgba(103,80,164,.18), rgba(103,80,164,0) 60%); }
-.gradient-right { background: linear-gradient(135deg, rgba(0,184,212,.18), rgba(0,184,212,0) 60%); }
-.action-grid { display: grid; grid-template-columns: repeat(3, max-content); gap: 12px; align-items: center; }
-.footer-hint { margin-top: 12px; font-size: 12px; opacity: .7; }
-@media (max-width: 900px) { .card-row { grid-template-columns: 1fr; } }
+.init-overlay {
+  position: relative;
+}
+
+.init-container {
+  max-width: 900px;
+  margin: 24px auto;
+  padding: 8px 16px;
+}
+
+.init-header .title {
+  font-size: 28px;
+  font-weight: 700;
+  text-align:left;
+  margin-bottom: 8px;
+}
+
+.init-header .subtitle {
+  font-size: 14px;
+  opacity: .75;
+  text-align: left;
+}
+
+/* 主要卡片 */
+.main-card-row {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  margin-top: 32px;
+}
+
+.main-service-card {
+  min-height: 100px;
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+.main-service-card:hover {
+  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
+}
+
+.main-service-card .v-card-item {
+  padding: 20px 24px;
+}
+
+.card-horizontal-layout {
+  display: flex;
+  align-items: center;
+  gap: 20px;
+}
+
+.card-icon-wrapper {
+  flex-shrink: 0;
+}
+
+.card-content {
+  flex: 1;
+  text-align: left;
+}
+
+.gradient-new {
+  background: linear-gradient(135deg, rgba(33,150,243,.12), rgba(103,80,164,0.08) 60%);
+  border: 2px solid rgba(33,150,243,.2);
+}
+
+.gradient-registered {
+  background: linear-gradient(135deg, rgba(76,175,80,.12), rgba(0,184,212,0.08) 60%);
+  border: 2px solid rgba(76,175,80,.2);
+}
+
+.gradient-kv {
+  background: linear-gradient(135deg, rgba(0,184,212,.12), rgba(33,150,243,0.08) 60%);
+  border: 2px solid rgba(0,184,212,.2);
+}
+
+/* 其他选项 */
+.alternative-options {
+  margin-top: 40px;
+  padding: 20px;
+  background: rgba(var(--v-theme-surface-variant), 0.3);
+  border-radius: 12px;
+}
+
+.options-title {
+  font-size: 14px;
+  font-weight: 600;
+  opacity: 0.8;
+  margin-bottom: 12px;
+  text-align: left;
+}
+
+.options-buttons {
+  margin-top: 24px;
+  display: flex;
+  gap: 8px;
+  flex-wrap: wrap;
+  justify-content: flex-start;
+}
+
+.clickable {
+  cursor: pointer;
+}
+
+.footer-hint {
+  margin-top: 24px;
+  font-size: 13px;
+  opacity: .7;
+  text-align: left;
+}
+
+@media (max-width: 768px) {
+  .card-horizontal-layout {
+    gap: 16px;
+  }
+
+  .card-icon-wrapper .v-icon {
+    font-size: 40px !important;
+  }
+
+  .options-buttons {
+    flex-direction: column;
+  }
+
+  .options-buttons .v-btn {
+    width: 100%;
+  }
+}
 </style>
diff --git a/src/components/MigrationTool.vue b/src/components/MigrationTool.vue
index ed5993d..00acab9 100644
--- a/src/components/MigrationTool.vue
+++ b/src/components/MigrationTool.vue
@@ -225,7 +225,7 @@
 
 <script>
 import { openDB } from "idb";
-import axios from "@/assets/fonts/axios/axios";
+import axios from "@/axios/axios";
 import { getSetting, setSetting } from "@/utils/settings";
 
 export default {
diff --git a/src/components/ReadOnlyTokenWarning.vue b/src/components/ReadOnlyTokenWarning.vue
new file mode 100644
index 0000000..3cd9e59
--- /dev/null
+++ b/src/components/ReadOnlyTokenWarning.vue
@@ -0,0 +1,125 @@
+<template>
+  <v-alert
+    v-if="isReadOnly"
+    type="warning"
+    variant="tonal"
+    prominent
+    closable
+    class="readonly-warning"
+    @click:close="dismissed = true"
+  >
+    <template #prepend>
+      <v-icon icon="mdi-lock-alert" />
+    </template>
+    <v-alert-title>当前使用只读 Token</v-alert-title>
+    <div class="text-body-2">
+      您当前的访问令牌为只读权限，无法修改数据。如需编辑权限，请联系管理员或重新授权。
+    </div>
+    <template v-if="tokenInfo">
+      <div class="mt-2 text-caption">
+        <div>
+          <strong>设备类型：</strong>{{ deviceTypeLabel }}
+        </div>
+        <div v-if="tokenInfo.note">
+          <strong>备注：</strong>{{ tokenInfo.note }}
+        </div>
+        <div v-if="tokenInfo.device">
+          <strong>设备：</strong>{{ tokenInfo.device.name }} ({{ tokenInfo.device.namespace }})
+        </div>
+      </div>
+    </template>
+  </v-alert>
+</template>
+
+<script setup>
+import { ref, computed, onMounted, watch } from 'vue'
+import { getSetting } from '@/utils/settings'
+import axios from '@/axios/axios'
+
+const props = defineProps({
+  autoCheck: {
+    type: Boolean,
+    default: true
+  }
+})
+
+const tokenInfo = ref(null)
+const loading = ref(false)
+const dismissed = ref(false)
+
+const isReadOnly = computed(() => {
+  return !dismissed.value && tokenInfo.value?.isReadOnly === true
+})
+
+const deviceTypeLabel = computed(() => {
+  const typeMap = {
+    student: '学生',
+    teacher: '教师',
+    admin: '管理员',
+    readonly: '只读',
+  }
+  return typeMap[tokenInfo.value?.deviceType] || tokenInfo.value?.deviceType || '未知'
+})
+
+const checkTokenPermission = async () => {
+  const provider = getSetting('server.provider')
+  const isKvProvider = provider === 'kv-server' || provider === 'classworkscloud'
+
+  if (!isKvProvider) {
+    return
+  }
+
+  const kvToken = getSetting('server.kvToken')
+  if (!kvToken) {
+    return
+  }
+
+  loading.value = true
+  try {
+    const serverUrl = getSetting('server.domain')
+    if (!serverUrl) return
+
+    const response = await axios.get(`${serverUrl}/kv/_token`, {
+      headers: {
+        Authorization: `Bearer ${kvToken}`
+      }
+    })
+
+    if (response.data) {
+      tokenInfo.value = response.data
+    }
+  } catch (err) {
+    console.error('获取 Token 信息失败:', err)
+  } finally {
+    loading.value = false
+  }
+}
+
+// 监听设置变化
+const kvToken = computed(() => getSetting('server.kvToken'))
+watch(kvToken, () => {
+  if (props.autoCheck) {
+    checkTokenPermission()
+  }
+})
+
+onMounted(() => {
+  if (props.autoCheck) {
+    checkTokenPermission()
+  }
+})
+
+// 暴露方法供外部调用
+defineExpose({
+  checkTokenPermission,
+  tokenInfo,
+  isReadOnly
+})
+</script>
+
+<style scoped>
+.readonly-warning {
+  margin: 16px;
+  border-left: 4px solid rgb(var(--v-theme-warning));
+}
+</style>
diff --git a/src/components/StudentNameManager.vue b/src/components/StudentNameManager.vue
new file mode 100644
index 0000000..e4330c0
--- /dev/null
+++ b/src/components/StudentNameManager.vue
@@ -0,0 +1,261 @@
+<template>
+  <!-- 学生姓名选择对话框 -->
+  <v-dialog
+    v-model="showDialog"
+    max-width="500"
+    persistent
+  >
+    <v-card>
+      <v-card-title>设置学生姓名</v-card-title>
+      <v-card-text>
+        <div class="mb-2">
+          请从列表中选择您的姓名：
+        </div>
+        <v-autocomplete
+          v-model="selectedName"
+          :items="studentList"
+          item-title="name"
+          item-value="name"
+          label="学生姓名"
+          placeholder="选择您的姓名"
+          clearable
+          hide-details
+        />
+        <div
+          v-if="studentList.length > 0"
+          class="mt-2 text-caption text-medium-emphasis"
+        >
+          共 {{ studentList.length }} 位学生
+        </div>
+        <v-alert
+          v-if="error"
+          type="error"
+          variant="tonal"
+          class="mt-3"
+        >
+          {{ error }}
+        </v-alert>
+      </v-card-text>
+      <v-card-actions>
+        <v-btn
+          variant="text"
+          @click="skipSetting"
+        >
+          稍后设置
+        </v-btn>
+        <v-spacer />
+        <v-btn
+          :disabled="!selectedName || saving"
+          :loading="saving"
+          color="primary"
+          @click="saveStudentName"
+        >
+          确认
+        </v-btn>
+      </v-card-actions>
+    </v-card>
+  </v-dialog>
+
+  <!-- 顶栏学生姓名显示（通过插槽暴露给父组件） -->
+  <slot
+    name="header-display"
+    :student-name="currentStudentName"
+    :is-student="isStudentToken"
+    :open-dialog="openDialog"
+  />
+</template>
+
+<script setup>
+import { ref, computed, watch, onMounted } from 'vue'
+import { getSetting, watchSettings } from '@/utils/settings'
+import axios from '@/axios/axios'
+import dataProvider from '@/utils/dataProvider'
+const emit = defineEmits(['token-info-updated'])
+
+const showDialog = ref(false)
+const selectedName = ref('')
+const studentList = ref([])
+const currentStudentName = ref('')
+const saving = ref(false)
+const error = ref('')
+const tokenInfo = ref(null)
+
+const isStudentToken = computed(() => tokenInfo.value?.deviceType === 'student')
+const isReadOnly = computed(() => tokenInfo.value?.isReadOnly === true)
+const displayName = computed(() => tokenInfo.value?.note || '设置名称')
+const hasToken = computed(() => !!kvToken.value)
+const kvToken = computed(() => getSetting('server.kvToken'))
+const provider = computed(() => getSetting('server.provider'))
+const isKvProvider = computed(() => provider.value === 'kv-server' || provider.value === 'classworkscloud')
+
+// 检查是否需要设置学生姓名
+const checkStudentNameStatus = async () => {
+  if (!isKvProvider.value || !kvToken.value) {
+    return
+  }
+
+  try {
+    const serverUrl = getSetting('server.domain')
+    if (!serverUrl) return
+
+    // 获取 Token 信息
+    const tokenResponse = await axios.get(`${serverUrl}/kv/_token`, {
+      headers: {
+        Authorization: `Bearer ${kvToken.value}`
+      }
+    })
+
+    tokenInfo.value = tokenResponse.data
+
+    // 如果不是学生类型，不需要处理
+    if (tokenInfo.value.deviceType !== 'student') {
+      return
+    }
+
+    // 保存当前学生姓名
+    currentStudentName.value = tokenInfo.value.note || ''
+
+    // 获取学生列表
+    const listResponse = await axios.get(`${serverUrl}/kv/classworks-list-main`, {
+      headers: {
+        Authorization: `Bearer ${kvToken.value}`
+      }
+    })
+
+    const list = listResponse.data.value || []
+    studentList.value = Array.isArray(list) ? list : []
+
+    // 如果学生列表为空，不需要提示
+    if (studentList.value.length === 0) {
+      return
+    }
+
+    // 检查当前姓名是否在学生列表中
+    const currentNote = tokenInfo.value.note || ''
+    const nameExists = studentList.value.some(student => student.name === currentNote)
+
+    // 如果姓名为空或不在列表中，显示对话框
+    if (!currentNote || !nameExists) {
+      showDialog.value = true
+      selectedName.value = ''
+    }
+
+  } catch (err) {
+    console.error('检查学生姓名状态失败:', err)
+  }
+}
+
+// 保存学生姓名
+const saveStudentName = async () => {
+  if (!selectedName.value || saving.value) return
+  error.value = ''
+  saving.value = true
+
+  try {
+    const serverUrl = getSetting('server.domain')
+    const token = kvToken.value
+
+    const response = await axios.post(
+      `${serverUrl}/apps/tokens/${token}/set-student-name`,
+      {
+        name: selectedName.value
+      }
+    )
+
+    if (response.data.success) {
+      currentStudentName.value = selectedName.value
+      showDialog.value = false
+      // 刷新 token 信息
+      await checkStudentNameStatus()
+      // 通知父组件更新显示
+      emit('token-info-updated')
+    }
+  } catch (err) {
+    const status = err?.response?.status
+    if (status === 400) {
+      error.value = '该名称不在学生列表中，请选择正确的姓名'
+    } else if (status === 403) {
+      error.value = '只有学生类型的 Token 可以设置姓名'
+    } else if (status === 404) {
+      error.value = '设备未设置学生列表或 Token 不存在'
+    } else {
+      error.value = err?.response?.data?.error?.message || err?.message || '设置失败，请稍后重试'
+    }
+  } finally {
+    saving.value = false
+  }
+}
+
+// 跳过设置
+const skipSetting = () => {
+  showDialog.value = false
+}
+
+// 手动打开对话框（用于编辑）
+const openDialog = async () => {
+  console.log('StudentNameManager.openDialog called')
+  console.log('isStudentToken:', isStudentToken.value)
+  console.log('studentList.length:', studentList.value.length)
+  console.log('currentStudentName:', currentStudentName.value)
+
+  if (!isStudentToken.value) {
+    console.log('Not a student token, cannot open dialog')
+    return
+  }
+  studentList.value = await dataProvider.loadData('classworks-list-main')
+  // 如果是学生 token，即使列表为空也应该打开对话框
+  // 可能是列表还在加载中
+  if (studentList.value.length === 0) {
+    console.log('Student list is empty, trying to load...')
+    // 重新加载学生列表
+    checkStudentNameStatus().then(() => {
+      if (studentList.value.length > 0) {
+        selectedName.value = currentStudentName.value
+        showDialog.value = true
+      } else {
+        console.warn('Student list is still empty after reload')
+      }
+    })
+  } else {
+    selectedName.value = currentStudentName.value
+    showDialog.value = true
+    console.log('Dialog opened, showDialog:', showDialog.value)
+  }
+}
+
+// 监听 token 变化
+watch(kvToken, () => {
+  checkStudentNameStatus()
+})
+
+// 监听设置变化
+watchSettings(() => {
+  checkStudentNameStatus()
+})
+
+// 监听 tokenInfo 变化，通知父组件
+watch(tokenInfo, () => {
+  emit('token-info-updated')
+}, { deep: true })
+
+// 初始化
+onMounted(() => {
+  checkStudentNameStatus()
+})
+
+// 暴露方法和状态给父组件
+defineExpose({
+  checkStudentNameStatus,
+  openDialog,
+  currentStudentName,
+  isStudentToken,
+  isReadOnly,
+  displayName,
+  hasToken,
+  tokenInfo
+})
+</script>
+
+<style scoped>
+/* 组件样式 */
+</style>
diff --git a/src/components/auth/AlternativeCodeDialog.vue b/src/components/auth/AlternativeCodeDialog.vue
new file mode 100644
index 0000000..07a5e08
--- /dev/null
+++ b/src/components/auth/AlternativeCodeDialog.vue
@@ -0,0 +1,68 @@
+<template>
+  <v-card>
+    <v-card-title>输入替代代码</v-card-title>
+    <v-card-text>
+      <v-textarea
+        v-model="code"
+        label="替代代码"
+        placeholder="请输入替代代码"
+        variant="outlined"
+        density="comfortable"
+        rows="5"
+        hide-details="auto"
+      />
+      <v-alert
+        type="info"
+        variant="tonal"
+        class="mt-3"
+      >
+        替代代码功能暂未实现，敬请期待
+      </v-alert>
+    </v-card-text>
+    <v-card-actions>
+      <v-spacer />
+      <v-btn
+        v-if="showCancel"
+        variant="text"
+        @click="$emit('cancel')"
+      >
+        取消
+      </v-btn>
+      <v-btn
+        :disabled="!code"
+        color="primary"
+        @click="submit"
+      >
+        提交
+      </v-btn>
+    </v-card-actions>
+  </v-card>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+
+defineProps({
+  showCancel: {
+    type: Boolean,
+    default: false
+  }
+})
+
+const emit = defineEmits(['submit', 'cancel'])
+
+const code = ref('')
+
+const submit = () => {
+  if (!code.value) return
+  // TODO: 实现替代代码逻辑
+  emit('submit', code.value)
+}
+
+// 暴露清空表单的方法
+defineExpose({
+  reset: () => {
+    code.value = ''
+  }
+})
+</script>
diff --git a/src/components/auth/DeviceAuthDialog.vue b/src/components/auth/DeviceAuthDialog.vue
new file mode 100644
index 0000000..0259dac
--- /dev/null
+++ b/src/components/auth/DeviceAuthDialog.vue
@@ -0,0 +1,198 @@
+<template>
+  <v-card class="auth-card">
+    <v-card-text class="pa-8">
+      <div class="text-center mb-6">
+        <v-icon
+          size="80"
+          color="success"
+          class="mb-4"
+        >
+          mdi-account-key
+        </v-icon>
+        <h2 class="text-h4 mb-3">
+          设备认证
+        </h2>
+        <p class="text-body-1 text-medium-emphasis">
+          输入你在 Classworks KV 获取的认证信息
+        </p>
+      </div>
+
+      <v-card
+        variant="tonal"
+        color="info"
+        class="pa-4 mb-6"
+      >
+        <div class="text-body-2">
+          <v-icon
+            size="20"
+            class="mr-2"
+          >
+            mdi-information
+          </v-icon>
+         对于已有UUID的用户，您应当使用UUID与您的密码登录。
+        </div>
+      </v-card>
+
+      <div class="form-section">
+        <v-text-field
+          v-model="form.namespace"
+          label="命名空间"
+          class="mb-4"
+          variant="outlined"
+          hide-details="auto"
+          prepend-inner-icon="mdi-identifier"
+        >
+
+        </v-text-field>
+
+        <v-text-field
+          v-model="form.password"
+          label="认证码"
+          type="text"
+          variant="outlined"
+          prepend-inner-icon="mdi-lock-outline"
+        >
+
+        </v-text-field>
+
+        <v-alert
+          v-if="error"
+          type="error"
+          variant="tonal"
+          class="mt-4"
+          closable
+          @click:close="error = ''"
+        >
+          {{ error }}
+        </v-alert>
+      </div>
+    </v-card-text>
+
+    <v-card-actions class="pa-6 pt-0">
+      <v-btn
+        v-if="showCancel"
+        size="large"
+        variant="text"
+        @click="$emit('cancel')"
+      >
+        取消
+      </v-btn>
+      <v-spacer />
+      <v-btn
+        :disabled="!form.namespace || authenticating"
+        :loading="authenticating"
+        size="x-large"
+        color="primary"
+        variant="elevated"
+        class="px-8"
+        @click="authenticate"
+      >
+        <v-icon
+          start
+          size="24"
+        >
+          mdi-login
+        </v-icon>
+        <span class="text-h6">认证并登录</span>
+      </v-btn>
+    </v-card-actions>
+  </v-card>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+import { getSetting, setSetting } from '@/utils/settings'
+import axios from '@/axios/axios'
+
+defineProps({
+  showCancel: {
+    type: Boolean,
+    default: false
+  }
+})
+
+const emit = defineEmits(['success', 'cancel'])
+
+const form = ref({
+  namespace: '',
+  password: ''
+})
+const authenticating = ref(false)
+const error = ref('')
+
+const authenticate = async () => {
+  if (!form.value.namespace || authenticating.value) return
+  error.value = ''
+  authenticating.value = true
+
+  try {
+    const serverUrl = getSetting('server.domain')
+    if (!serverUrl) throw new Error('未配置服务器域名')
+
+    // 验证设备并获取 token
+    const response = await axios.post(`${serverUrl}/apps/auth/token`, {
+      namespace: form.value.namespace,
+      password: form.value.password || undefined,
+      appId: "d158067f53627d2b98babe8bffd2fd7d"
+    })
+
+    if (!response.data.success) {
+      throw new Error('设备验证失败')
+    }
+
+    const tokenData = response.data
+
+    // 保存 Token
+    setSetting('server.kvToken', tokenData.token)
+
+    // 如果返回了 device 信息，保存 uuid
+    if (tokenData.device?.uuid) {
+      setSetting('device.uuid', tokenData.device.uuid)
+    }
+
+    emit('success', tokenData)
+
+  } catch (err) {
+    const status = err?.response?.status
+    if (status === 401 || status === 403) {
+      error.value = '密码错误或无权限访问'
+    } else if (status === 404) {
+      error.value = '设备不存在,请检查 namespace 是否正确'
+    } else {
+      error.value = err?.response?.data?.error?.message || err?.message || '认证失败,请稍后重试'
+    }
+  } finally {
+    authenticating.value = false
+  }
+}
+
+// 暴露清空表单的方法
+defineExpose({
+  reset: () => {
+    form.value = { namespace: '', password: '' }
+    error.value = ''
+  }
+})
+</script>
+
+<style scoped>
+.auth-card {
+  max-width: 100%;
+  min-height: 500px;
+}
+
+.form-section {
+  max-width: 600px;
+  margin: 0 auto;
+}
+
+/* 触屏优化 */
+.v-btn {
+  touch-action: manipulation;
+  -webkit-tap-highlight-color: transparent;
+}
+
+.v-btn.v-btn--size-x-large {
+  min-height: 60px;
+}
+</style>
diff --git a/src/components/auth/FirstTimeGuide.vue b/src/components/auth/FirstTimeGuide.vue
new file mode 100644
index 0000000..1b8e787
--- /dev/null
+++ b/src/components/auth/FirstTimeGuide.vue
@@ -0,0 +1,671 @@
+<template>
+  <v-card class="guide-card">
+    <!-- 进度指示器 -->
+    <v-progress-linear
+      :model-value="(currentStep / totalSteps) * 100"
+      color="primary"
+      height="6"
+    />
+
+    <v-card-text class="pa-8">
+      <!-- 步骤 1: 欢迎 -->
+      <div
+        v-show="currentStep === 1"
+        class="step-content"
+      >
+        <div class="text-center mb-6">
+          <v-icon
+            size="80"
+            color="primary"
+            class="mb-4"
+          >
+            mdi-hand-wave
+          </v-icon>
+          <h2 class="text-h4 mb-3">
+            欢迎使用 Classworks
+          </h2>
+          <p class="text-body-1 text-medium-emphasis">
+            适用于班级大屏的作业板小工具
+          </p>
+        </div>
+      </div>
+
+      <!-- 步骤 2: Classworks 和 KV 的关系图 -->
+      <div
+        v-show="currentStep === 2"
+        class="step-content"
+      >
+        <h3 class="text-h5 mb-6 text-center">
+          Classworks 和 Classworks KV 的关系
+        </h3>
+
+        <v-card
+          variant="tonal"
+          color="primary"
+          class="pa-6 mb-6"
+        >
+          <div class="relationship-diagram">
+            <!-- Classworks 应用 -->
+            <div class="diagram-item">
+              <v-card
+                elevation="8"
+                color="blue-darken-1"
+                class="pa-4"
+              >
+                <div class="text-center">
+                  <v-icon
+                    size="60"
+                    color="white"
+                  >
+                    mdi-laptop
+                  </v-icon>
+                  <h4 class="text-h6 text-white mt-2">
+                    Classworks
+                  </h4>
+                  <p class="text-caption text-white mt-1">
+                    作业板应用
+                  </p>
+                </div>
+              </v-card>
+
+              <div class="diagram-description mt-3">
+                <v-chip
+                  color="blue"
+                  variant="flat"
+                  size="small"
+                  class="mb-2"
+                >
+                  前端应用
+                </v-chip>
+                <div class="text-body-2">
+                  • 显示作业内容<br>
+                  • 管理班级信息<br>
+                  • 提供用户界面
+                </div>
+              </div>
+            </div>
+
+            <!-- 连接线 -->
+            <div class="diagram-connector">
+              <v-icon
+                size="40"
+                color="primary"
+              >
+                mdi-swap-horizontal
+              </v-icon>
+              <div class="text-caption font-weight-bold mt-2">
+                数据同步
+              </div>
+            </div>
+
+            <!-- Classworks KV -->
+            <div class="diagram-item">
+              <v-card
+                elevation="8"
+                color="green-darken-1"
+                class="pa-4"
+              >
+                <div class="text-center">
+                  <v-icon
+                    size="60"
+                    color="white"
+                  >
+                    mdi-cloud-sync
+                  </v-icon>
+                  <h4 class="text-h6 text-white mt-2">
+                    Classworks KV
+                  </h4>
+                  <p class="text-caption text-white mt-1">
+                    云端数据库
+                  </p>
+                </div>
+              </v-card>
+
+              <div class="diagram-description mt-3">
+                <v-chip
+                  color="green"
+                  variant="flat"
+                  size="small"
+                  class="mb-2"
+                >
+                  后端服务
+                </v-chip>
+                <div class="text-body-2">
+                  • 存储作业数据<br>
+                  • 多设备同步<br>
+                  • 权限管理
+                </div>
+              </div>
+            </div>
+          </div>
+        </v-card>
+
+        <!-- 工作流程说明 -->
+        <v-card
+          variant="outlined"
+          class="pa-5 mb-4"
+        >
+          <h4 class="text-h6 mb-4">
+            <v-icon
+              color="primary"
+              class="mr-2"
+            >
+              mdi-information
+            </v-icon>
+            工作流程
+          </h4>
+
+          <v-timeline
+            side="end"
+            density="compact"
+            line-thickness="2"
+          >
+            <v-timeline-item
+              dot-color="primary"
+              size="small"
+            >
+              <div class="text-body-2">
+                <strong>步骤 1:</strong> 在 Classworks 应用中编辑作业
+              </div>
+            </v-timeline-item>
+
+            <v-timeline-item
+              dot-color="success"
+              size="small"
+            >
+              <div class="text-body-2">
+                <strong>步骤 2:</strong> 数据自动上传到 Classworks KV
+              </div>
+            </v-timeline-item>
+
+            <v-timeline-item
+              dot-color="info"
+              size="small"
+            >
+              <div class="text-body-2">
+                <strong>步骤 3:</strong> 其他设备从 Classworks KV 同步数据
+              </div>
+            </v-timeline-item>
+
+            <v-timeline-item
+              dot-color="warning"
+              size="small"
+            >
+              <div class="text-body-2">
+                <strong>步骤 4:</strong> 所有设备显示相同的作业内容
+              </div>
+            </v-timeline-item>
+          </v-timeline>
+        </v-card>
+
+        <!-- 优势说明 -->
+        <v-row>
+          <v-col
+            cols="12"
+            md="4"
+          >
+            <v-card
+              variant="tonal"
+              color="blue"
+              class="pa-4 h-100"
+            >
+              <v-icon
+                size="40"
+                color="blue-darken-2"
+                class="mb-2"
+              >
+                mdi-devices
+              </v-icon>
+              <h5 class="text-subtitle-1 font-weight-bold mb-2">
+                多设备访问
+              </h5>
+              <p class="text-body-2">
+                在教室、办公室、家中的任何设备上访问相同的数据
+              </p>
+            </v-card>
+          </v-col>
+
+          <v-col
+            cols="12"
+            md="4"
+          >
+            <v-card
+              variant="tonal"
+              color="green"
+              class="pa-4 h-100"
+            >
+              <v-icon
+                size="40"
+                color="green-darken-2"
+                class="mb-2"
+              >
+                mdi-sync
+              </v-icon>
+              <h5 class="text-subtitle-1 font-weight-bold mb-2">
+                实时同步
+              </h5>
+              <p class="text-body-2">
+                修改后立即同步，所有设备保持数据一致
+              </p>
+            </v-card>
+          </v-col>
+
+          <v-col
+            cols="12"
+            md="4"
+          >
+            <v-card
+              variant="tonal"
+              color="orange"
+              class="pa-4 h-100"
+            >
+              <v-icon
+                size="40"
+                color="orange-darken-2"
+                class="mb-2"
+              >
+                mdi-shield-lock
+              </v-icon>
+              <h5 class="text-subtitle-1 font-weight-bold mb-2">
+                安全可靠
+              </h5>
+              <p class="text-body-2">
+                通过密码和命名空间隔离，保护班级数据安全
+              </p>
+            </v-card>
+          </v-col>
+        </v-row>
+      </div>
+
+      <!-- 步骤 3: 询问使用场景 -->
+      <div
+        v-show="currentStep === 3"
+        class="step-content"
+      >
+        <h3 class="text-h5 mb-6 text-center">
+          你需要在多个设备上查看作业吗？
+        </h3>
+
+        <v-card
+          variant="tonal"
+          color="info"
+          class="mb-6 pa-4"
+        >
+          <div class="text-body-2">
+            比如：在家里电脑、手机上查看，或者多个教室设备共享数据
+          </div>
+        </v-card>
+
+        <div class="button-group">
+          <v-btn
+            size="x-large"
+            block
+            variant="elevated"
+            color="primary"
+            class="mb-4 py-6"
+            @click="selectStorageType('cloud')"
+          >
+            <div class="d-flex flex-column align-center py-2">
+              <v-icon
+                size="40"
+                class="mb-2"
+              >
+                mdi-cloud-check
+              </v-icon>
+              <span class="text-h6">需要，使用云同步</span>
+              <span class="text-caption mt-1">多设备访问</span>
+            </div>
+          </v-btn>
+
+          <v-btn
+            size="x-large"
+            block
+            variant="outlined"
+            class="py-6"
+            @click="selectStorageType('local')"
+          >
+            <div class="d-flex flex-column align-center py-2">
+              <v-icon
+                size="40"
+                class="mb-2"
+              >
+                mdi-laptop
+              </v-icon>
+              <span class="text-h6">不需要，只用这台设备</span>
+              <span class="text-caption mt-1">本地存储</span>
+            </div>
+          </v-btn>
+        </div>
+      </div>
+
+      <!-- 步骤 4a: 本地存储确认 -->
+      <div
+        v-show="currentStep === 4 && storageType === 'local'"
+        class="step-content"
+      >
+        <div class="text-center mb-6">
+          <v-icon
+            size="80"
+            color="success"
+            class="mb-4"
+          >
+            mdi-check-circle
+          </v-icon>
+          <h3 class="text-h5 mb-4">
+            您可以使用本地模式
+          </h3>
+          <v-card
+            variant="tonal"
+            class="pa-4 text-left"
+          >
+            <div class="text-body-1 mb-2">
+              此数据将存储在您的浏览器中，如果您的浏览器不支持IndexedDB，可能会出现问题。如果您经常清除浏览器数据，请谨慎使用本地模式。
+            </div>
+            <div class="text-body-1 mb-2">
+              在刚才地方点击使用本地模式的按钮使用。
+            </div>
+          </v-card>
+        </div>
+      </div>
+
+      <!-- 步骤 4b: 云存储说明 -->
+      <div
+        v-show="currentStep === 4 && storageType === 'cloud'"
+        class="step-content"
+      >
+        <div class="text-center mb-6">
+          <v-icon
+            size="80"
+            color="primary"
+            class="mb-4"
+          >
+            mdi-cloud-cog
+          </v-icon>
+          <h3 class="text-h5 mb-4">
+            需要先设置云端账号
+          </h3>
+        </div>
+
+        <v-card
+          :variant="kvserverurl=='https://kv.houlang.cloud'? 'elevated' : 'outlined'"
+          :color=" kvserverurl=='https://kv.houlang.cloud'? 'primary' : 'error' "
+          class="pa-6  mb-6"
+          @click="openKVSite"
+        >
+          <v-icon
+            size="48"
+            class="mb-3"
+          >
+            mdi-open-in-new
+          </v-icon>
+          <h4 class="text-h6  font-weight-bold">
+            请访问 {{ kvserverurl=='https://kv.houlang.cloud'? 'Classworks KV' : '自定义的 Classworks KV 实例 ' }} 控制台
+          </h4>
+          <div class="text-h5 mb-6">
+            {{ kvserverurl }}
+          </div>
+          <h6 class="text-subtitle-2">
+            {{ kvserverurl=='https://kv.houlang.cloud'? '此实例由 Classworks KV 官方提供' : '此链接由您的实例、预配代码或管理员管理，当前可能不是 Classworks KV 官方的实例地址。' }}
+          </h6>
+        </v-card>
+
+        <v-card
+          variant="tonal"
+          color="info"
+          class="pa-5"
+        >
+          <div class="text-body-1 mb-3">
+            <v-icon
+              size="20"
+              class="mr-2"
+            >
+              mdi-information
+            </v-icon>
+            在控制台完成以下操作：
+          </div>
+          <div class="text-body-2 mb-2">
+            1. 注册或登录账号
+          </div>
+          <div class="text-body-2 mb-2">
+            2. 创建班级空间
+          </div>
+          <div class="text-body-2 mb-2">
+            3. 获取命名空间和密码
+          </div>
+          <div class="text-body-2">
+            4. 返回这里输入认证信息
+          </div>
+        </v-card>
+
+        <!-- 常见问题 -->
+        <v-expansion-panels
+          class="mt-6"
+          variant="accordion"
+        >
+          <v-expansion-panel>
+            <v-expansion-panel-title>
+              <div class="d-flex align-center">
+                <v-icon
+                  class="mr-3"
+                  color="warning"
+                >
+                  mdi-help-circle
+                </v-icon>
+                <span class="text-subtitle-1 font-weight-medium">我以前已经使用过 Classworks KV？</span>
+              </div>
+            </v-expansion-panel-title>
+            <v-expansion-panel-text>
+              <v-card
+                variant="tonal"
+                color="success"
+                class="pa-4"
+              >
+                <div class="text-body-2 mb-2">
+                  如果您之前已经使用过 Classworks KV，可以直接使用您的 <strong>UUID（命名空间）</strong> 和 <strong>设置的密码</strong> 进行认证。
+                </div>
+                <div class="text-body-2">
+                  返回上一页，点击"已注册"按钮，输入您的认证信息即可登录。
+                </div>
+              </v-card>
+            </v-expansion-panel-text>
+          </v-expansion-panel>
+
+          <v-expansion-panel>
+            <v-expansion-panel-title>
+              <div class="d-flex align-center">
+                <v-icon
+                  class="mr-3"
+                  color="info"
+                >
+                  mdi-help-circle
+                </v-icon>
+                <span class="text-subtitle-1 font-weight-medium">我如何配置不同类型的设备？</span>
+              </div>
+            </v-expansion-panel-title>
+            <v-expansion-panel-text>
+              <v-card
+                variant="tonal"
+                color="info"
+                class="pa-4"
+              >
+                <div class="text-body-2 mb-2">
+                  不同的密码对应不同的设备类型，这将由 <strong>管理员管理</strong>。
+                </div>
+                <div class="text-body-2 mb-2">
+                  例如：
+                </div>
+                <ul class="text-body-2 ml-4">
+                  <li class="mb-1">
+                    班级大屏使用一个密码
+                  </li>
+                  <li class="mb-1">
+                    教师设备使用另一个密码
+                  </li>
+                  <li>学生设备使用不同的密码</li>
+                </ul>
+                <div class="text-body-2 mt-3">
+                  请联系您的管理员获取对应设备类型的密码。
+                </div>
+              </v-card>
+            </v-expansion-panel-text>
+          </v-expansion-panel>
+        </v-expansion-panels>
+      </div>
+    </v-card-text>
+
+    <!-- 底部操作按钮 -->
+    <v-card-actions class="pa-6 pt-0">
+      <v-btn
+        v-if="currentStep > 1"
+        size="large"
+        variant="text"
+        @click="prevStep"
+      >
+        <v-icon start>
+          mdi-chevron-left
+        </v-icon>
+        上一步
+      </v-btn>
+      <v-spacer />
+      <v-btn
+        v-if="currentStep < 4"
+        :disabled="currentStep === 3 && !storageType"
+        size="large"
+        color="primary"
+        variant="elevated"
+        @click="nextStep"
+      >
+        下一步
+        <v-icon end>
+          mdi-chevron-right
+        </v-icon>
+      </v-btn>
+      <v-btn
+        v-else
+        size="large"
+        color="primary"
+        variant="elevated"
+        @click="finish"
+      >
+        关闭
+      </v-btn>
+    </v-card-actions>
+  </v-card>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+import { getSetting } from '@/utils/settings'
+const emit = defineEmits(['close'])
+const kvserverurl = getSetting('server.authDomain')
+const currentStep = ref(1)
+const totalSteps = 4
+const storageType = ref('')
+
+const nextStep = () => {
+  if (currentStep.value < totalSteps) {
+    currentStep.value++
+  }
+}
+
+const prevStep = () => {
+  if (currentStep.value > 1) {
+    currentStep.value--
+  }
+}
+
+const selectStorageType = (type) => {
+  storageType.value = type
+  nextStep()
+}
+
+const finish = () => {
+  emit('close')
+}
+
+const openKVSite = () => {
+  window.open(kvserverurl, '_blank')
+}
+</script>
+
+<style scoped>
+.guide-card {
+  max-width: 100%;
+  min-height: 500px;
+}
+
+.step-content {
+  min-height: 400px;
+  animation: fadeIn 0.3s ease-in;
+}
+
+@keyframes fadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(10px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.button-group {
+  max-width: 600px;
+  margin: 0 auto;
+}
+
+.step-item {
+  cursor: default;
+}
+
+/* 触屏优化 */
+.v-btn {
+  touch-action: manipulation;
+  -webkit-tap-highlight-color: transparent;
+}
+
+/* 大按钮区域便于点击 */
+.v-btn.v-btn--size-x-large {
+  min-height: 120px;
+}
+
+/* 关系图样式 */
+.relationship-diagram {
+  display: flex;
+  justify-content: space-around;
+  align-items: flex-start;
+  gap: 20px;
+  flex-wrap: wrap;
+}
+
+.diagram-item {
+  flex: 1;
+  min-width: 200px;
+  max-width: 300px;
+}
+
+.diagram-connector {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  min-width: 100px;
+}
+
+.diagram-description {
+  text-align: center;
+}
+
+@media (max-width: 768px) {
+  .relationship-diagram {
+    flex-direction: column;
+    align-items: center;
+  }
+
+  .diagram-connector {
+    transform: rotate(90deg);
+    margin: 20px 0;
+  }
+}
+</style>
diff --git a/src/components/auth/README.md b/src/components/auth/README.md
new file mode 100644
index 0000000..b0b337f
--- /dev/null
+++ b/src/components/auth/README.md
@@ -0,0 +1,133 @@
+# 认证组件
+
+这个目录包含可复用的认证相关组件,可以在应用的任何地方使用。
+
+## 组件列表
+
+### DeviceAuthDialog.vue
+设备认证对话框,用于通过 namespace 和密码进行设备认证。
+
+**Props:**
+- `showCancel` (Boolean): 是否显示取消按钮,默认为 `false`
+
+**Events:**
+- `@success`: 认证成功时触发,传递认证数据
+- `@cancel`: 点击取消按钮时触发
+
+**暴露的方法:**
+- `reset()`: 清空表单和错误信息
+
+**使用示例:**
+```vue
+<template>
+  <v-dialog v-model="dialog">
+    <DeviceAuthDialog
+      :show-cancel="true"
+      @success="handleSuccess"
+      @cancel="dialog = false"
+    />
+  </v-dialog>
+</template>
+
+<script setup>
+import DeviceAuthDialog from '@/components/auth/DeviceAuthDialog.vue'
+</script>
+```
+
+---
+
+### TokenInputDialog.vue
+Token 输入对话框,用于手动输入 KV 授权 Token。
+
+**Props:**
+- `showCancel` (Boolean): 是否显示取消按钮,默认为 `false`
+
+**Events:**
+- `@success`: Token 验证成功时触发
+- `@cancel`: 点击取消按钮时触发
+
+**暴露的方法:**
+- `reset()`: 清空表单和错误信息
+
+**使用示例:**
+```vue
+<template>
+  <v-dialog v-model="dialog">
+    <TokenInputDialog
+      :show-cancel="true"
+      @success="handleSuccess"
+      @cancel="dialog = false"
+    />
+  </v-dialog>
+</template>
+
+<script setup>
+import TokenInputDialog from '@/components/auth/TokenInputDialog.vue'
+</script>
+```
+
+---
+
+### AlternativeCodeDialog.vue
+替代代码输入对话框（功能暂未实现）。
+
+**Props:**
+- `showCancel` (Boolean): 是否显示取消按钮,默认为 `false`
+
+**Events:**
+- `@submit`: 提交代码时触发,传递代码内容
+- `@cancel`: 点击取消按钮时触发
+
+**暴露的方法:**
+- `reset()`: 清空表单
+
+**使用示例:**
+```vue
+<template>
+  <v-dialog v-model="dialog">
+    <AlternativeCodeDialog
+      :show-cancel="true"
+      @submit="handleSubmit"
+      @cancel="dialog = false"
+    />
+  </v-dialog>
+</template>
+
+<script setup>
+import AlternativeCodeDialog from '@/components/auth/AlternativeCodeDialog.vue'
+</script>
+```
+
+---
+
+### FirstTimeGuide.vue
+初次使用指南,介绍 Classworks KV 的功能和使用方式。
+
+**Events:**
+- `@close`: 关闭指南时触发
+
+**使用示例:**
+```vue
+<template>
+  <v-dialog v-model="dialog">
+    <FirstTimeGuide @close="dialog = false" />
+  </v-dialog>
+</template>
+
+<script setup>
+import FirstTimeGuide from '@/components/auth/FirstTimeGuide.vue'
+</script>
+```
+
+## 设计原则
+
+1. **可复用性**: 所有组件都被设计为独立可复用的,可以在应用的任何地方使用
+2. **独立性**: 每个组件都包含自己的逻辑和样式,不依赖外部状态
+3. **统一接口**: 所有对话框组件都遵循相同的 props 和 events 模式
+4. **响应式设计**: 组件适配各种屏幕尺寸
+
+## 注意事项
+
+- 这些组件需要配合 Vuetify 使用
+- 组件内部使用了 `@/utils/settings` 和 `@/axios/axios`,确保这些依赖可用
+- 建议将这些组件包裹在 `v-dialog` 中使用,以获得最佳的用户体验
diff --git a/src/components/auth/TokenInputDialog.vue b/src/components/auth/TokenInputDialog.vue
new file mode 100644
index 0000000..1ef7ed2
--- /dev/null
+++ b/src/components/auth/TokenInputDialog.vue
@@ -0,0 +1,103 @@
+<template>
+  <v-card>
+    <v-card-title>输入授权 Token</v-card-title>
+    <v-card-text>
+      <v-text-field
+        v-model="token"
+        label="KV 授权 Token"
+        placeholder="粘贴从授权页面获取的 Token"
+        variant="outlined"
+        density="comfortable"
+        hide-details="auto"
+        clearable
+      />
+      <v-alert
+        v-if="error"
+        type="error"
+        variant="tonal"
+        class="mt-3"
+      >
+        {{ error }}
+      </v-alert>
+    </v-card-text>
+    <v-card-actions>
+      <v-spacer />
+      <v-btn
+        v-if="showCancel"
+        variant="text"
+        @click="$emit('cancel')"
+      >
+        取消
+      </v-btn>
+      <v-btn
+        :disabled="!token || verifying"
+        :loading="verifying"
+        color="primary"
+        @click="saveToken"
+      >
+        保存 Token
+      </v-btn>
+    </v-card-actions>
+  </v-card>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+import { getSetting, setSetting } from '@/utils/settings'
+import axios from '@/axios/axios'
+
+defineProps({
+  showCancel: {
+    type: Boolean,
+    default: false
+  }
+})
+
+const emit = defineEmits(['success', 'cancel'])
+
+const token = ref('')
+const verifying = ref(false)
+const error = ref('')
+
+const saveToken = async () => {
+  if (!token.value || verifying.value) return
+  error.value = ''
+  verifying.value = true
+
+  try {
+    const serverUrl = getSetting('server.domain')
+    if (!serverUrl) throw new Error('未配置服务器域名')
+
+    await axios.get(`${serverUrl}/kv/_info`, {
+      headers: {
+        Accept: 'application/json',
+        'x-app-token': token.value,
+      },
+    })
+
+    // 验证通过再保存
+    setSetting('server.kvToken', token.value)
+    emit('success')
+
+  } catch (err) {
+    const status = err?.response?.status
+    if (status === 401 || status === 403) {
+      error.value = 'Token 无效或无权限,请确认后重试'
+    } else if (status === 404) {
+      error.value = '命名空间不存在或服务器未就绪'
+    } else {
+      error.value = err?.response?.data?.message || err?.message || '验证失败,请稍后重试'
+    }
+  } finally {
+    verifying.value = false
+  }
+}
+
+// 暴露清空表单的方法
+defineExpose({
+  reset: () => {
+    token.value = ''
+    error.value = ''
+  }
+})
+</script>
diff --git a/src/components/settings/cards/CloudNamespaceInfoCard.vue b/src/components/settings/cards/CloudNamespaceInfoCard.vue
index 974fecf..2089ac5 100644
--- a/src/components/settings/cards/CloudNamespaceInfoCard.vue
+++ b/src/components/settings/cards/CloudNamespaceInfoCard.vue
@@ -102,15 +102,35 @@
         刷新设备信息
       </v-btn>
 
-      <v-btn color="primary" @click="reinitializeCloudStorage">
+      <v-btn color="error" variant="outlined" @click="showReinitDialog = true">
         重新初始化云端存储
       </v-btn>
     </v-card-actions>
+
+    <!-- 重新初始化确认对话框 -->
+    <v-dialog v-model="showReinitDialog" max-width="500">
+      <v-card>
+        <v-card-title>确认重新初始化</v-card-title>
+        <v-card-text>
+          <v-alert type="warning" variant="tonal" class="mb-3">
+            <v-alert-title>警告</v-alert-title>
+            此操作将清除当前的云端存储配置（包括 Token），您需要重新进行授权。
+          </v-alert>
+          <p>您确定要重新初始化云端存储吗？</p>
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer />
+          <v-btn variant="text" @click="showReinitDialog = false">取消</v-btn>
+          <v-btn color="error" @click="confirmReinitialize">确认</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
   </v-card>
 </template>
 
 <script>
 import { kvServerProvider } from "@/utils/providers/kvServerProvider";
+import { setSetting } from "@/utils/settings";
 
 export default {
   name: "CloudNamespaceInfoCard",
@@ -125,6 +145,7 @@ export default {
       namespaceInfo: {},
       loading: false,
       hasNamespaceInfo: false,
+      showReinitDialog: false, // 确认对话框显示状态
     };
   },
   watch: {
@@ -168,13 +189,16 @@ export default {
     async reloadInfo() {
       await this.fetchNamespaceInfo();
     },
-    reinitializeCloudStorage() {
-      // 触发 KvInitialize 组件的重新初始化
-      try {
-        window.dispatchEvent(new CustomEvent("kvinit:open"));
-      } catch (e) {
-        console.error("重新初始化云端存储失败:", e);
-      }
+    confirmReinitialize() {
+      // 删除 token 配置（设置为空字符串以触发 shouldShowInit）
+      setSetting('server.kvToken', '');
+      setSetting('device.uuid', '');
+
+      // 关闭对话框
+      this.showReinitDialog = false;
+
+      // 返回主页（将触发 InitServiceChooser 组件显示）
+      this.$router.push('/');
     },
   },
 };
diff --git a/src/pages/index.vue b/src/pages/index.vue
index 5b9850f..0913050 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -7,6 +7,30 @@
     <v-spacer />
 
     <template #append>
+      <!-- 只读 Token 警告 -->
+      <v-chip
+        v-if="tokenDisplayInfo.readonly"
+        color="warning"
+        variant="tonal"
+        class="mx-2"
+        prepend-icon="mdi-lock-alert"
+      >
+        只读
+      </v-chip>
+
+      <!-- 学生名称显示 chip（始终蓝色） -->
+      <v-chip
+        v-if="tokenDisplayInfo.show"
+        color="primary"
+        variant="tonal"
+        class="mx-2"
+        prepend-icon="mdi-account"
+        :style="{ cursor: tokenDisplayInfo.disabled ? 'default' : 'pointer' }"
+        @click="handleTokenChipClick"
+      >
+        {{ tokenDisplayInfo.text }}
+      </v-chip>
+
       <v-btn icon="mdi-chat" variant="text" @click="isChatOpen = true" />
       <v-btn
         icon="mdi-bell"
@@ -21,6 +45,13 @@
   <!-- 初始化选择卡片，仅在首页且需要授权时显示；不影响顶栏 -->
   <init-service-chooser v-if="shouldShowInit" @done="settingsTick++" />
 
+  <!-- 学生姓名管理组件 -->
+  <StudentNameManager
+    v-if="!shouldShowInit"
+    ref="studentNameManager"
+    @token-info-updated="updateTokenDisplayInfo"
+  />
+
   <div v-if="!shouldShowInit" class="d-flex">
     <!-- 主要内容区域 -->
     <v-container class="main-window flex-grow-1 no-select" fluid>
@@ -629,6 +660,7 @@ import FloatingICP from "@/components/FloatingICP.vue";
 import ChatWidget from "@/components/ChatWidget.vue";
 import HomeworkEditDialog from "@/components/HomeworkEditDialog.vue";
 import InitServiceChooser from "@/components/InitServiceChooser.vue";
+import StudentNameManager from "@/components/StudentNameManager.vue";
 import dataProvider from "@/utils/dataProvider";
 import {
   getSetting,
@@ -662,6 +694,7 @@ export default {
     HomeworkEditDialog,
     InitServiceChooser,
     ChatWidget,
+    StudentNameManager,
   },
   data() {
     const defaultSubjects = [
@@ -745,6 +778,16 @@ export default {
       settingsTick: 0,
       isChatOpen: false,
       highlightedCards: {}, // 记录哪些卡片需要高亮
+      // Token 显示信息（统一显示 token 信息和学生姓名）
+      tokenDisplayInfo: {
+        show: false,
+        readonly: false, // 是否是只读 token
+        text: '',
+        color: 'primary',
+        variant: 'tonal',
+        icon: 'mdi-account',
+        disabled: false
+      },
       // 实时刷新信息
       realtimeInfo: {
         show: false,
@@ -999,6 +1042,24 @@ export default {
         this.updateSettings();
       });
 
+      // 连接学生姓名管理组件
+      this.$nextTick(() => {
+        const studentNameManager = this.$refs.studentNameManager;
+        if (studentNameManager) {
+          this.studentNameInfo.name = studentNameManager.currentStudentName;
+          this.studentNameInfo.isStudent = studentNameManager.isStudentToken;
+          this.studentNameInfo.openDialog = () => studentNameManager.openDialog();
+
+          // 监听学生姓名变化
+          this.$watch(() => studentNameManager.currentStudentName, (newName) => {
+            this.studentNameInfo.name = newName;
+          });
+          this.$watch(() => studentNameManager.isStudentToken, (isStudent) => {
+            this.studentNameInfo.isStudent = isStudent;
+          });
+        }
+      });
+
       document.addEventListener(
         "fullscreenchange",
         this.fullscreenChangeHandler
@@ -1022,6 +1083,11 @@ export default {
 
       // 实时频道：加入设备房间并监听键变化
       this.setupRealtimeChannel();
+
+      // 初始化 Token 显示信息
+      this.$nextTick(() => {
+        this.updateTokenDisplayInfo();
+      });
     } catch (err) {
       console.error("初始化失败:", err);
       this.showError("初始化失败，请刷新页面重试");
@@ -1066,6 +1132,51 @@ export default {
   },
 
   methods: {
+    // 更新 Token 显示信息
+    updateTokenDisplayInfo() {
+      const manager = this.$refs.studentNameManager
+      if (!manager || !manager.hasToken) {
+        this.tokenDisplayInfo.show = false
+        this.tokenDisplayInfo.readonly = false
+        return
+      }
+
+      const displayName = manager.displayName
+      const isReadOnly = manager.isReadOnly
+      const isStudent = manager.isStudentToken
+
+      // 设置只读状态（对所有类型的 token 都显示）
+      this.tokenDisplayInfo.readonly = isReadOnly
+
+      // 只有学生类型的 token 才显示名称 chip
+      if (!isStudent) {
+        this.tokenDisplayInfo.show = false
+        return
+      }
+
+      // 设置学生名称显示（始终蓝色）
+      this.tokenDisplayInfo.text = displayName
+      this.tokenDisplayInfo.color = 'primary'
+      this.tokenDisplayInfo.icon = 'mdi-account'
+      this.tokenDisplayInfo.disabled = isReadOnly // 只读时不可点击
+      this.tokenDisplayInfo.show = true
+    },
+
+    // 处理 Token Chip 点击
+    handleTokenChipClick() {
+      console.log('Token chip clicked')
+      const manager = this.$refs.studentNameManager
+      console.log('Manager:', manager)
+      console.log('Is student token:', manager?.isStudentToken)
+
+      if (manager && manager.isStudentToken) {
+        console.log('Opening dialog...')
+        manager.openDialog()
+      } else {
+        console.log('Cannot open dialog - conditions not met')
+      }
+    },
+
     ensureDate(dateInput) {
       if (dateInput instanceof Date) {
         return dateInput;
diff --git a/src/pages/settings.vue b/src/pages/settings.vue
index 56e15c6..cc6654a 100644
--- a/src/pages/settings.vue
+++ b/src/pages/settings.vue
@@ -62,6 +62,7 @@
                   class="text-none"
                   append-icon="mdi-arrow-right"
                   rounded="xl"
+                  @click="openClassworksKV"
                 >
                   打开 Classworks KV
                 </v-btn>
@@ -464,6 +465,9 @@ export default {
   },
 
   methods: {
+    openClassworksKV() {
+      window.open(getSetting("server.authDomain"), "_blank");
+    },
     loadAllSettings() {
       Object.keys(this.settings).forEach((section) => {
         Object.keys(this.settings[section]).forEach((key) => {