diff --git a/resources/views/admin/channels/index.blade.php b/resources/views/admin/channels/index.blade.php
index a8ff6fb..01b0c8e 100644
--- a/resources/views/admin/channels/index.blade.php
+++ b/resources/views/admin/channels/index.blade.php
@@ -208,16 +208,16 @@ layui.use(['table', 'form', 'layer'], function () {
         '</select></div></div>'
       : '';
 
-    // Channel ID block: App=auto UUID (readonly); old=auto 32-hex (readonly); new=X.Y.ZZ input
+    // Channel ID block: App=UUID (blank=auto); old=32-hex (blank=auto); new=X.Y.ZZ input
     var isOld = values.builder_type === 'old';
     var channelBlock = creating
       ? (isApp
         ? '<div class="layui-form-item"><label class="layui-form-label">渠道 ID</label><div class="layui-input-block">' +
-          '<input name="channel_id" class="layui-input" readonly id="LAY-ch-id-input" value="' + (values.channel_id || '') + '" placeholder="自动生成 UUID">' +
+          '<input name="channel_id" class="layui-input" maxlength="64" id="LAY-ch-id-input" style="width:70%;display:inline-block;" value="' + (values.channel_id || '') + '" placeholder="留空自动生成 UUID">' +
           '<button type="button" class="layui-btn layui-btn-primary" id="LAY-ch-rand" style="margin-left:6px;">随机</button></div></div>'
         : (isOld
           ? '<div class="layui-form-item"><label class="layui-form-label">渠道 ID</label><div class="layui-input-block">' +
-            '<input name="channel_id" class="layui-input" readonly id="LAY-ch-id-input" style="width:70%;display:inline-block;" value="' + (values.channel_id || '') + '" placeholder="自动生成 32 位 hex">' +
+            '<input name="channel_id" class="layui-input" maxlength="64" id="LAY-ch-id-input" style="width:70%;display:inline-block;" value="' + (values.channel_id || '') + '" placeholder="留空自动生成 32 位 hex">' +
             '<button type="button" class="layui-btn layui-btn-primary" id="LAY-ch-rand" style="margin-left:6px;">随机</button></div></div>'
           : '<div class="layui-form-item"><label class="layui-form-label">渠道 ID</label><div class="layui-input-block">' +
             '<input name="channel_id" class="layui-input" maxlength="6" id="LAY-ch-id-input" style="width:70%;display:inline-block;" value="' + (values.channel_id || '') + '" placeholder="例如 A.B.C1 或 3.1.07">' +
@@ -262,7 +262,7 @@ layui.use(['table', 'form', 'layer'], function () {
             if (res.code === 0) $('#LAY-ch-form input[name=channel_id]').val(res.data.channel_id);
           });
         });
-        // Auto-generate UUID when switching to App; 32-hex when switching to Old
+        // Update channel ID input hints when switching builder type (blank = auto-generate)
         form.on('select(LAY-ch-builder-type)', function (data) {
           var v = data.value;
           var isAppNow = v === 'app';
@@ -271,21 +271,11 @@ layui.use(['table', 'form', 'layer'], function () {
           $('.LAY-ch-new-only').toggle(!isAppNow); // template shown for new + old
           var idInput = $('#LAY-ch-id-input');
           if (isAppNow) {
-            idInput.attr('readonly', true).attr('maxlength', '').attr('placeholder', '自动生成 UUID');
-            if (!idInput.val()) {
-              $.getJSON(@json(route('admin.channels.randomId')) + '?builder_type=app', function (res) {
-                if (res.code === 0) idInput.val(res.data.channel_id);
-              });
-            }
+            idInput.attr('maxlength', '').attr('placeholder', '留空自动生成 UUID');
           } else if (isOldNow) {
-            idInput.attr('readonly', true).attr('maxlength', '').attr('placeholder', '自动生成 32 位 hex');
-            if (!idInput.val()) {
-              $.getJSON(@json(route('admin.channels.randomId')) + '?builder_type=old', function (res) {
-                if (res.code === 0) idInput.val(res.data.channel_id);
-              });
-            }
+            idInput.attr('maxlength', '').attr('placeholder', '留空自动生成 32 位 hex');
           } else {
-            idInput.removeAttr('readonly').attr('maxlength', '6').attr('placeholder', '例如 A.B.C1 或 3.1.07').val('');
+            idInput.attr('maxlength', '6').attr('placeholder', '例如 A.B.C1 或 3.1.07').val('');
           }
         });
       },
@@ -310,7 +300,7 @@ layui.use(['table', 'form', 'layer'], function () {
                 CorunaFilterOptions.apply(form);
               }
               table.reload('LAY-ch-list');
-              showCreateResult(res, data.channel_id);
+              showCreateResult(res, data.channel_id || (res.data && res.data.channel_id) || '');
             },
             error: function (xhr) {
               layer.close(load);