diff --git a/backend/app/core/security.py b/backend/app/core/security.py
index 75b70e4..24f24cd 100644
--- a/backend/app/core/security.py
+++ b/backend/app/core/security.py
@@ -37,7 +37,7 @@ def verify_casdoor_token(token: str) -> dict:
     header = pyjwt.get_unverified_header(token)
     algorithm = header.get("alg")
     if algorithm not in {"RS256", "RS384", "RS512"}:
-        raise ValueError("Unsupported Casdoor token algorithm")
+        raise ValueError(f"Unsupported Casdoor token algorithm: {algorithm}")
 
     return pyjwt.decode(
         token,
diff --git a/backend/app/services/imc_service.py b/backend/app/services/imc_service.py
index 61f7201..1b36e0b 100644
--- a/backend/app/services/imc_service.py
+++ b/backend/app/services/imc_service.py
@@ -39,16 +39,52 @@ class IMCService:
     """iMC REST API 服务封装"""
 
     def __init__(self):
+        import os
+        import tempfile
+        import certifi
+        from requests.adapters import HTTPAdapter
+
         self.base_url = settings.IMC_API_URL.rstrip('/')
         self.username = settings.IMC_API_USERNAME
         self.password = settings.IMC_API_PASSWORD
-        self.verify_ssl = settings.IMC_API_VERIFY_SSL
         self.connect_timeout = settings.IMC_CONNECT_TIMEOUT
         self.read_timeout = settings.IMC_READ_TIMEOUT
         self.session = requests.Session()
         self.realm = "iMC RESTful Web Services"
         self.nonce = None
         self.nc = 1
+        self._ca_bundle_file = None  # temp file for certifi + iMC CA
+
+        if settings.IMC_API_VERIFY_SSL:
+            imc_ca_path = os.path.join(os.path.dirname(__file__), "..", "..", "imc_ca.pem")
+            if os.path.isfile(imc_ca_path):
+                # The iMC self-signed cert uses a non-DNS CN and zero SAN entries,
+                # so hostname matching is impossible.  We still enforce full
+                # certificate-chain verification via a combined CA bundle, then
+                # tell urllib3 to skip its own hostname check.
+                with open(imc_ca_path, "rb") as fh:
+                    imc_pem = fh.read()
+                self._ca_bundle_file = tempfile.NamedTemporaryFile(suffix=".pem", delete=False)
+                with open(certifi.where(), "rb") as fh:
+                    self._ca_bundle_file.write(fh.read())
+                self._ca_bundle_file.write(b"\n")
+                self._ca_bundle_file.write(imc_pem)
+                self._ca_bundle_file.flush()
+
+                _ca_bundle = self._ca_bundle_file.name
+
+                class _IMCAdapter(HTTPAdapter):
+                    def cert_verify(self, conn, url, verify, cert):
+                        super().cert_verify(conn, url, verify=_ca_bundle, cert=cert)
+                        conn.assert_hostname = False
+
+                self.session.mount("https://", _IMCAdapter())
+                self.verify_ssl = True
+                logger.info("iMC TLS verification enabled (hostname check relaxed)")
+            else:
+                self.verify_ssl = True
+        else:
+            self.verify_ssl = False
 
     # ── Digest 认证 ──────────────────────────────────────────────────────────
 
diff --git a/backend/imc_ca.pem b/backend/imc_ca.pem
new file mode 100644
index 0000000..e9b71d7
--- /dev/null
+++ b/backend/imc_ca.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
diff --git a/backend/token_jwt_key.pem b/backend/token_jwt_key.pem
new file mode 100644
index 0000000..0a33e36
--- /dev/null
+++ b/backend/token_jwt_key.pem
@@ -0,0 +1,14 @@
+-----BEGIN PUBLIC KEY-----
+MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArvxqOc2fCe611njyX3aG
+aprZzyU/UhynIHsJhVMq6tDFLPmJCitg5WFHVTOW5KlTzKI894XJNEPSkf4POoai
+1z4CW/GeRrkN8/XP8/RqyiCQAslei5FH5i1RjqLWijm0qUNsgYk07ZpBw45qT1ti
+ipJF33L+mr9s+O17ujDDb2EZBzTcuBs1eYhv2fk0bOdYK17Vzzw1StPP0OWmfYev
+edw6YemqnODk21e6CGcewXhgIX6k8iBaULQLoy0qTR+4nKwJjnCm4DrbSkYvjM7p
+AW/3bQyJax1VbFw2jRo1CRcoaMRzLcutpe7HaT+wf4TR7cZFcaFZieSsruLySD5X
+42bVgWDIZtjtXfJnSZc/Fv6IyUi/PzzlWIaxGcqqVHSk3W/w1ubNc+70SQA7fCJP
+8vh/GcRNbWF3+mH4B1DSMSl7IAxGNyXeQyNq44Gp9T9MeXsvppQxcHd3Tn4krRi5
+NzWetnRCOH/kQblfK9FK4o1XGkIHVdwCUBoFO4Tlqu3qNCQIkg28Wg6OgdkHrkoc
+lW98y0y5Wvt0tJtg48cfpgkHZ9SKM0qhedyUBvGV1fd8QAuwL9JbvMwUX7cVOGBJ
+6rc4Sk11uRGVCnmw5Ed5ORa0w70DrQYe9OoNqYiqmkLh+TvXMhGmYQ+V8aw6ejmA
+2Efz40ofkK+Z+Pizv9L3wP8CAwEAAQ==
+-----END PUBLIC KEY-----
diff --git a/frontend/src/views/OltManage.vue b/frontend/src/views/OltManage.vue
index 590f1d2..ea8aa98 100644
--- a/frontend/src/views/OltManage.vue
+++ b/frontend/src/views/OltManage.vue
@@ -8,31 +8,22 @@
       </div>
       <div class="header-actions">
         <el-button v-if="!isMobile && can('olt.manage')" type="primary" size="small" @click="openAddDialog">
-          <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" style="margin-right: 5px">
+          <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" class="btn-icon">
             <line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/>
           </svg>
           添加 OLT
         </el-button>
-        <el-upload
-          v-if="!isMobile && can('olt.manage')"
-          :auto-upload="false"
-          :show-file-list="false"
-          :on-change="handleImportFile"
-          accept=".xlsx,.xls"
-          style="display: inline-block"
-        >
-          <el-button type="success" size="small" :loading="importing">批量导入</el-button>
-        </el-upload>
-        <el-button v-if="!isMobile && can('olt.manage')" size="small" @click="downloadTemplate">下载模板</el-button>
-        <el-button v-if="!isMobile && can('olt.manage')" type="danger" plain size="small" @click="openDuplicateMacs">
-          重复 MAC
-          <el-badge v-if="duplicateCount > 0" :value="duplicateCount" style="margin-left: 4px" />
+        <el-button v-if="!isMobile && can('olt.manage')" type="success" plain size="small" :loading="importing" @click="triggerImport">
+          批量导入
+        </el-button>
+        <el-button v-if="!isMobile && can('olt.manage')" plain size="small" @click="downloadTemplate">下载模板</el-button>
+        <el-button v-if="can('olt.manage')" type="danger" plain size="small" @click="openDuplicateMacs">
+          重复 MAC<span v-if="duplicateCount > 0" class="btn-count danger">{{ duplicateCount }}</span>
         </el-button>
         <el-button v-if="can('olt.manage')" type="warning" plain size="small" @click="openNewDevices">
-          新增设备
-          <el-badge v-if="newDeviceCount > 0" :value="newDeviceCount" style="margin-left: 4px" />
+          新增设备<span v-if="newDeviceCount > 0" class="btn-count warning">{{ newDeviceCount }}</span>
         </el-button>
-        <el-button v-if="can('olt.manage')" type="info" plain size="small" @click="openNtpSync" :loading="ntpSyncing">
+        <el-button v-if="!isMobile && can('olt.manage')" type="info" plain size="small" @click="openNtpSync" :loading="ntpSyncing">
           同步NTP
         </el-button>
         <el-button v-if="can('olt.loopback')" type="danger" plain size="small" @click="runLoopbackDetection" :loading="loopDetecting">
@@ -41,6 +32,15 @@
         <el-button v-if="can('olt.discover')" type="primary" plain size="small" @click="runQuickScan" :loading="quickScanning">
           快速扫描
         </el-button>
+        <!-- 隐藏的上传组件（批量导入触发） -->
+        <input
+          v-if="!isMobile && can('olt.manage')"
+          ref="importInput"
+          type="file"
+          accept=".xlsx,.xls"
+          style="display:none"
+          @change="handleImportFile"
+        />
       </div>
     </div>
 
@@ -604,6 +604,7 @@ const newDevList = ref([])
 const newDeviceCount = ref(0)
 const newDevVisible = ref(false)
 const savingDev = ref(null)
+const importInput = ref(null)
 const loopDetecting = ref(false)
 const loopVisible = ref(false)
 const loopResults = ref([])
@@ -973,10 +974,16 @@ const showLoopDetail = (oltId) => {
   loopDetailVisible.value = true
 }
 
-const handleImportFile = async (uploadFile) => {
+const triggerImport = () => {
+  importInput.value?.click()
+}
+
+const handleImportFile = async (event) => {
+  const file = event.target?.files?.[0] || (event.raw || event)
+  if (!file) return
   importing.value = true
   const formData = new FormData()
-  formData.append('file', uploadFile.raw)
+  formData.append('file', file)
   try {
     const { data } = await request.post('/olt/import', formData, {
       headers: { 'Content-Type': 'multipart/form-data' }
@@ -1077,8 +1084,35 @@ onMounted(() => {
 .header-actions {
   display: flex;
   align-items: center;
-  gap: 8px;
   flex-wrap: wrap;
+  gap: 8px;
+}
+
+.btn-icon {
+  margin-right: 5px;
+  vertical-align: -2px;
+}
+
+.btn-count {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 18px;
+  height: 18px;
+  padding: 0 5px;
+  margin-left: 4px;
+  border-radius: 9px;
+  font-size: 11px;
+  font-weight: 600;
+  line-height: 1;
+  flex-shrink: 0;
+}
+
+.btn-count.danger  { background: var(--danger);  color: #fff; }
+.btn-count.warning { background: var(--warning); color: #fff; }
+
+.header-actions .el-button {
+  white-space: nowrap;
 }
 
 /* 数据面板 */
@@ -1526,19 +1560,17 @@ onMounted(() => {
   .header-actions {
     width: 100%;
     display: grid;
-    grid-template-columns: repeat(3, 1fr);
-    gap: 8px;
-  }
-
-  .header-actions .el-button,
-  .header-actions > * {
-    width: 100%;
-    min-height: 44px;
-  }
-
-  /* 移动端按钮区只显示2列（移动端只剩新增设备、环路检测、快速扫描） */
-  .header-actions {
     grid-template-columns: repeat(2, 1fr);
+    gap: 8px;
+    justify-items: center;
+  }
+
+  .header-actions .el-button {
+    width: 95%;
+    min-height: 44px;
+    padding-left: 14px;
+    padding-right: 14px;
+    justify-content: center;
   }
 
   /* 端口管理对话框：限制高度支持滚动 */