diff --git a/admin-ui/.env.production b/admin-ui/.env.production
index 521c967..f89f97b 100644
--- a/admin-ui/.env.production
+++ b/admin-ui/.env.production
@@ -5,7 +5,7 @@ VUE_APP_TITLE = 管理系统
 ENV = 'production'
 
 # 若依管理系统/生产环境
-VUE_APP_BASE_API = 'http://111.230.37.169:10009'
+# VUE_APP_BASE_API = 'http://111.230.37.169:10009'
 # VUE_APP_BASE_API = 'http://101.96.201.225:8011'
-# VUE_APP_BASE_API = 'http://47.86.170.114:8011'
+VUE_APP_BASE_API = 'http://47.86.170.114:8011'
 
diff --git a/admin-ui/src/views/ai/dept/index.vue b/admin-ui/src/views/ai/dept/index.vue
index ae3808d..6ab02b4 100644
--- a/admin-ui/src/views/ai/dept/index.vue
+++ b/admin-ui/src/views/ai/dept/index.vue
@@ -96,7 +96,7 @@
       </el-table-column>
     </el-table>
 
-    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
+    <el-dialog :title="title" :visible.sync="open" width="760px" append-to-body>
       <el-form ref="form" :model="form" :rules="rules" label-width="80px">
         <el-row>
           <el-col :span="24" v-if="form.parentId !== 0">
@@ -160,6 +160,41 @@
             </el-form-item>
           </el-col>
         </el-row>
+        <el-row v-if="isSecondLevelCompanyForm">
+          <el-col :span="24">
+            <el-form-item label="视频模型">
+              <div class="model-parm-block">
+                <div
+                  v-for="(row, idx) in modelParamRows"
+                  :key="'mp-' + idx"
+                  class="model-parm-row"
+                >
+                  <el-input
+                    v-model="row.label"
+                    placeholder="显示名称（如 Seedance 2.0）"
+                    class="model-parm-input-label"
+                  />
+                  <el-input
+                    v-model="row.value"
+                    placeholder="Endpoint / 模型 ID（ep-…）"
+                    class="model-parm-input-value"
+                  />
+                  <el-button
+                    type="text"
+                    icon="el-icon-delete"
+                    :disabled="modelParamRows.length <= 1"
+                    @click="removeModelParamRow(idx)"
+                  />
+                </div>
+                <el-button type="text" icon="el-icon-plus" @click="addModelParamRow">添加模型</el-button>
+                <p class="model-parm-hint">
+                  保存为 JSON 写入库表 model_parm；门户「视频生成」按用户所属二级部门读取。
+                  留空或未配置时，使用配置文件 portal.video.models。
+                </p>
+              </div>
+            </el-form-item>
+          </el-col>
+        </el-row>
       </el-form>
       <div slot="footer" class="dialog-footer">
         <el-button type="primary" @click="submitForm">确 定</el-button>
@@ -169,6 +204,31 @@
   </div>
 </template>
 
+<style scoped>
+.model-parm-block {
+  width: 100%;
+}
+.model-parm-row {
+  display: flex;
+  align-items: center;
+  margin-bottom: 8px;
+}
+.model-parm-input-label {
+  width: 38%;
+  margin-right: 8px;
+}
+.model-parm-input-value {
+  flex: 1;
+  margin-right: 8px;
+}
+.model-parm-hint {
+  margin: 8px 0 0;
+  font-size: 12px;
+  color: #909399;
+  line-height: 1.5;
+}
+</style>
+
 <script>
 import { listDept, getDept, delDept, addDept, updateDept, listDeptExcludeChild } from "@/api/ai/dept"
 import Treeselect from "@riophae/vue-treeselect"
@@ -193,6 +253,7 @@ export default {
         status: undefined
       },
       form: {},
+      modelParamRows: [{ label: '', value: '' }],
       rules: {
         parentId: [
           { required: true, message: "上级部门不能为空", trigger: "blur" }
@@ -268,8 +329,10 @@ export default {
         phone: undefined,
         email: undefined,
         byteApiKey: undefined,
+        modelParm: undefined,
         status: "0"
       }
+      this.modelParamRows = [{ label: '', value: '' }]
       this.resetForm("form")
     },
     handleQuery() {
@@ -297,10 +360,45 @@ export default {
         this.refreshTable = true
       })
     },
+    syncModelRowsFromForm() {
+      this.modelParamRows = [{ label: '', value: '' }]
+      const raw = this.form.modelParm
+      if (!raw || String(raw).trim() === '') {
+        return
+      }
+      try {
+        const arr = JSON.parse(raw)
+        if (Array.isArray(arr) && arr.length) {
+          this.modelParamRows = arr.map(x => ({
+            label: (x && x.label) ? String(x.label) : '',
+            value: (x && x.value) ? String(x.value) : ''
+          }))
+        }
+      } catch (e) {
+        this.modelParamRows = [{ label: '', value: '' }]
+      }
+    },
+    buildModelParmPayload() {
+      if (!this.isSecondLevelCompanyForm) {
+        return
+      }
+      const rows = (this.modelParamRows || []).filter(r => r.label && r.value)
+      this.form.modelParm = rows.length ? JSON.stringify(rows) : ''
+    },
+    addModelParamRow() {
+      this.modelParamRows.push({ label: '', value: '' })
+    },
+    removeModelParamRow(idx) {
+      if (this.modelParamRows.length <= 1) {
+        return
+      }
+      this.modelParamRows.splice(idx, 1)
+    },
     handleUpdate(row) {
       this.reset()
       getDept(row.deptId).then(response => {
         this.form = response.data
+        this.syncModelRowsFromForm()
         this.open = true
         this.title = "修改部门"
         listDeptExcludeChild(row.deptId).then(response => {
@@ -315,6 +413,7 @@ export default {
     submitForm: function() {
       this.$refs["form"].validate(valid => {
         if (valid) {
+          this.buildModelParmPayload()
           if (this.form.deptId != undefined) {
             updateDept(this.form).then(response => {
               this.$modal.msgSuccess("修改成功")
diff --git a/admin-ui/src/views/system/dept/index.vue b/admin-ui/src/views/system/dept/index.vue
index 1412c6b..b28b1c5 100644
--- a/admin-ui/src/views/system/dept/index.vue
+++ b/admin-ui/src/views/system/dept/index.vue
@@ -97,7 +97,7 @@
     </el-table>
 
     <!-- 添加或修改部门对话框 -->
-    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
+    <el-dialog :title="title" :visible.sync="open" width="760px" append-to-body>
       <el-form ref="form" :model="form" :rules="rules" label-width="80px">
         <el-row>
           <el-col :span="24" v-if="form.parentId !== 0">
@@ -174,6 +174,41 @@
             </el-form-item>
           </el-col>
         </el-row>
+        <el-row v-if="isSecondLevelCompanyForm">
+          <el-col :span="24">
+            <el-form-item label="视频模型">
+              <div class="model-parm-block">
+                <div
+                  v-for="(row, idx) in modelParamRows"
+                  :key="'mp-' + idx"
+                  class="model-parm-row"
+                >
+                  <el-input
+                    v-model="row.label"
+                    placeholder="显示名称（如 Seedance 2.0）"
+                    class="model-parm-input-label"
+                  />
+                  <el-input
+                    v-model="row.value"
+                    placeholder="Endpoint / 模型 ID（ep-…）"
+                    class="model-parm-input-value"
+                  />
+                  <el-button
+                    type="text"
+                    icon="el-icon-delete"
+                    :disabled="modelParamRows.length <= 1"
+                    @click="removeModelParamRow(idx)"
+                  />
+                </div>
+                <el-button type="text" icon="el-icon-plus" @click="addModelParamRow">添加模型</el-button>
+                <p class="model-parm-hint">
+                  保存为 JSON 写入 model_parm；门户「视频生成」按用户所属二级部门读取。
+                  留空则使用 portal.video.models。
+                </p>
+              </div>
+            </el-form-item>
+          </el-col>
+        </el-row>
       </el-form>
       <div slot="footer" class="dialog-footer">
         <el-button type="primary" @click="submitForm">确 定</el-button>
@@ -183,6 +218,31 @@
   </div>
 </template>
 
+<style scoped>
+.model-parm-block {
+  width: 100%;
+}
+.model-parm-row {
+  display: flex;
+  align-items: center;
+  margin-bottom: 8px;
+}
+.model-parm-input-label {
+  width: 38%;
+  margin-right: 8px;
+}
+.model-parm-input-value {
+  flex: 1;
+  margin-right: 8px;
+}
+.model-parm-hint {
+  margin: 8px 0 0;
+  font-size: 12px;
+  color: #909399;
+  line-height: 1.5;
+}
+</style>
+
 <script>
 import { listDept, getDept, delDept, addDept, updateDept, listDeptExcludeChild } from "@/api/system/dept"
 import Treeselect from "@riophae/vue-treeselect"
@@ -217,6 +277,7 @@ export default {
       },
       // 表单参数
       form: {},
+      modelParamRows: [{ label: '', value: '' }],
       // 表单校验
       rules: {
         parentId: [
@@ -262,6 +323,40 @@ export default {
     }
   },
   methods: {
+    syncModelRowsFromForm() {
+      this.modelParamRows = [{ label: '', value: '' }]
+      const raw = this.form.modelParm
+      if (!raw || String(raw).trim() === '') {
+        return
+      }
+      try {
+        const arr = JSON.parse(raw)
+        if (Array.isArray(arr) && arr.length) {
+          this.modelParamRows = arr.map(x => ({
+            label: (x && x.label) ? String(x.label) : '',
+            value: (x && x.value) ? String(x.value) : ''
+          }))
+        }
+      } catch (e) {
+        this.modelParamRows = [{ label: '', value: '' }]
+      }
+    },
+    buildModelParmPayload() {
+      if (!this.isSecondLevelCompanyForm) {
+        return
+      }
+      const rows = (this.modelParamRows || []).filter(r => r.label && r.value)
+      this.form.modelParm = rows.length ? JSON.stringify(rows) : ''
+    },
+    addModelParamRow() {
+      this.modelParamRows.push({ label: '', value: '' })
+    },
+    removeModelParamRow(idx) {
+      if (this.modelParamRows.length <= 1) {
+        return
+      }
+      this.modelParamRows.splice(idx, 1)
+    },
     /** 查询部门列表 */
     getList() {
       this.loading = true
@@ -298,8 +393,11 @@ export default {
         phone: undefined,
         email: undefined,
         byteApiKey: undefined,
+        project: undefined,
+        modelParm: undefined,
         status: "0"
       }
+      this.modelParamRows = [{ label: '', value: '' }]
       this.resetForm("form")
     },
     /** 搜索按钮操作 */
@@ -336,6 +434,7 @@ export default {
       this.reset()
       getDept(row.deptId).then(response => {
         this.form = response.data
+        this.syncModelRowsFromForm()
         this.open = true
         this.title = "修改部门"
         listDeptExcludeChild(row.deptId).then(response => {
@@ -351,6 +450,7 @@ export default {
     submitForm: function() {
       this.$refs["form"].validate(valid => {
         if (valid) {
+          this.buildModelParmPayload()
           if (this.form.deptId != undefined) {
             updateDept(this.form).then(response => {
               this.$modal.msgSuccess("修改成功")
diff --git a/portal-ui/src/views/VideoGen.vue b/portal-ui/src/views/VideoGen.vue
index 9819a55..a480a2d 100644
--- a/portal-ui/src/views/VideoGen.vue
+++ b/portal-ui/src/views/VideoGen.vue
@@ -468,7 +468,7 @@ export default {
 				const res = await this.$axios({
 					url: 'api/portal/video/tasks',
 					method: 'GET',
-					data: { pageNum, pageSize }
+					params: { pageNum, pageSize }
 				})
 
 				const newRows = res.code === 200 ? res.rows || [] : []
@@ -542,7 +542,7 @@ export default {
 				const res = await this.$axios({
 					url: 'api/portal/video/tasks',
 					method: 'GET',
-					data: { pageNum: 1, pageSize: this.chatPageSize }
+					params: { pageNum: 1, pageSize: this.chatPageSize }
 				})
 				const newRows = res.code === 200 ? res.rows || [] : []
 				const existMap = new Map((this.taskRows || []).map((x) => [x.id, x]))
@@ -581,18 +581,31 @@ export default {
 		},
 
 		taskRowResultTrim(row) {
-			return String(row?.result ?? '').trim()
+			let r = String(row?.result ?? '').trim()
+			if (r) return r
+			const raw = row?.videoParams
+			if (raw == null || raw === '') return ''
+			if (typeof raw !== 'string') return ''
+			try {
+				const o = JSON.parse(raw)
+				const id = o?.volcTaskId
+				if (id != null && String(id).trim() !== '') return String(id).trim()
+			} catch (_) {
+				/* ignore */
+			}
+			return ''
 		},
 
 		taskStatusText(row) {
-			if (row.status === 2) return '已失败/已取消'
-			if (row.status === 0) return '执行中'
-			if (row.status === 1) {
+			const st = row?.status
+			if (st === 2 || st === '2') return '已失败/已取消'
+			if (st === 0 || st === '0') return '执行中'
+			if (st === 1 || st === '1') {
 				const r = this.taskRowResultTrim(row)
 				if (!r) return '失败'
 				if (this.isHttpOrHttpsUrl(r)) return '已完成'
-				if (/^cgt/i.test(r)) return '任务执行中'
-				return '任务生成失败'
+				// 任务 id 格式由火山侧决定，不再假定 cgt 前缀；非 URL 的中间态均视为执行中
+				return '任务执行中'
 			}
 			return '执行中'
 		},
@@ -600,17 +613,17 @@ export default {
 		/** 是否展示完整「结果区」（视频 / 链接）；其余状态仅紧凑展示在用户行右侧 */
 		isChatRowSuccessWithMedia(row) {
 			const r = this.taskRowResultTrim(row)
-			return row.status === 1 && !!r && this.isHttpOrHttpsUrl(r)
+			const st = row?.status
+			return (st === 1 || st === '1') && !!r && this.isHttpOrHttpsUrl(r)
 		},
 
 		chatRowInlineStatusClass(row) {
-			if (row.status === 2) return 'vg-chat-inline-status--failed'
-			if (row.status === 1) {
+			const st = row?.status
+			if (st === 2 || st === '2') return 'vg-chat-inline-status--failed'
+			if (st === 1 || st === '1') {
 				const r = this.taskRowResultTrim(row)
 				if (!r) return 'vg-chat-inline-status--failed'
-				if (/^cgt/i.test(r)) return 'vg-chat-inline-status--running'
-				if (this.isHttpOrHttpsUrl(r)) return 'vg-chat-inline-status--running'
-				return 'vg-chat-inline-status--failed'
+				return 'vg-chat-inline-status--running'
 			}
 			return 'vg-chat-inline-status--running'
 		},
diff --git a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteApiController.java b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteApiController.java
index bc3c970..75fe98a 100644
--- a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteApiController.java
+++ b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteApiController.java
@@ -174,7 +174,8 @@ public class ByteApiController extends BaseController {
 
             aiOrder.setImg1(firstUrl.toString());
             ByteBodyReq byteBodyReq = new ByteBodyReq();
-            byteBodyReq.setModel("ep-20251104104536-2gpgz");
+            byteBodyReq.setModel(StringUtils.isNotEmpty(request.getModel()) ?
+                    request.getModel() : "ep-20260326165811-dlkth");
             byteBodyReq.setPrompt(text);
             byteBodyReq.setImage(firstUrl);
             byteBodyReq.setSequential_image_generation("disabled");
diff --git a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
index 3ee7622..e3aa01f 100644
--- a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
+++ b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
@@ -1,8 +1,8 @@
 package com.ruoyi.api;
 
+import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.ruoyi.ai.domain.AiOrder;
@@ -72,8 +72,77 @@ public class PortalVideoController extends BaseController {
         return "21";
     }
 
-    private void applyOptionalParams(ByteBodyReq body, PortalVideoGenRequest req) {
-        PortalVideoProperties.Defaults d = portalVideoProperties.getDefaults();
+    private List<PortalVideoProperties.ModelOption> loadModelOptionsForAiUser(Long aiUserId, Long secondDeptId) {
+        String json = byteDeptApiKeyService.resolveSecondLevelModelParm(aiUserId);
+        List<PortalVideoProperties.ModelOption> fromDb = parseModelParmJson(json);
+        if (fromDb != null && !fromDb.isEmpty()) {
+            return fromDb;
+        }
+        return portalVideoProperties.resolveModelsForSecondDept(secondDeptId);
+    }
+
+    private List<PortalVideoProperties.ModelOption> parseModelParmJson(String json) {
+        if (StringUtils.isEmpty(json)) {
+            return null;
+        }
+        try {
+            List<PortalVideoProperties.ModelOption> list = OM.readValue(json.trim(),
+                    new TypeReference<List<PortalVideoProperties.ModelOption>>() { });
+            if (list == null || list.isEmpty()) {
+                return null;
+            }
+            List<PortalVideoProperties.ModelOption> out = new ArrayList<>();
+            for (PortalVideoProperties.ModelOption o : list) {
+                if (o != null && StringUtils.isNotEmpty(o.getLabel()) && StringUtils.isNotEmpty(o.getValue())) {
+                    out.add(o);
+                }
+            }
+            return out.isEmpty() ? null : out;
+        } catch (Exception e) {
+            logger.warn("解析二级部门 model_parm 失败: {}", e.getMessage());
+            return null;
+        }
+    }
+
+    private static boolean isModelInOptions(String modelId, List<PortalVideoProperties.ModelOption> options) {
+        if (modelId == null || modelId.isEmpty() || options == null) {
+            return false;
+        }
+        for (PortalVideoProperties.ModelOption o : options) {
+            if (modelId.equals(o.getValue())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static void alignDefaultsModelToOptions(PortalVideoProperties.Defaults defs, List<PortalVideoProperties.ModelOption> models) {
+        if (defs == null || models == null || models.isEmpty()) {
+            return;
+        }
+        String m = defs.getModel();
+        if (m == null || m.isEmpty()) {
+            defs.setModel(models.get(0).getValue());
+            return;
+        }
+        if (!isModelInOptions(m, models)) {
+            defs.setModel(models.get(0).getValue());
+        }
+    }
+
+    private String resolveDefaultModelForAiUser(Long aiUserId, Long secondDeptId, List<PortalVideoProperties.ModelOption> allowed) {
+        PortalVideoProperties.Defaults d = portalVideoProperties.resolveEffectiveDefaults(secondDeptId);
+        if (d.getModel() != null && !d.getModel().isEmpty() && isModelInOptions(d.getModel(), allowed)) {
+            return d.getModel();
+        }
+        if (!allowed.isEmpty() && StringUtils.isNotEmpty(allowed.get(0).getValue())) {
+            return allowed.get(0).getValue();
+        }
+        return null;
+    }
+
+    private void applyOptionalParams(ByteBodyReq body, PortalVideoGenRequest req, Long secondDeptId) {
+        PortalVideoProperties.Defaults d = portalVideoProperties.resolveEffectiveDefaults(secondDeptId);
         body.setDuration(req.getDuration() != null ? req.getDuration() : d.getDuration());
         body.setResolution(StringUtils.isNotEmpty(req.getResolution()) ? req.getResolution() : d.getResolution());
         body.setRatio(StringUtils.isNotEmpty(req.getRatio()) ? req.getRatio() : d.getRatio());
@@ -83,14 +152,20 @@ public class PortalVideoController extends BaseController {
     }
 
     private ByteBodyReq newVideoBody(PortalVideoGenRequest req, List<ContentItem> content) {
-        String modelId = StringUtils.isNotEmpty(req.getModel()) ? req.getModel() : portalVideoProperties.resolveDefaultModelId();
+        Long uid = SecurityUtils.getAiUserId();
+        Long secondDeptId = byteDeptApiKeyService.resolveSecondLevelDeptId(uid);
+        List<PortalVideoProperties.ModelOption> allowed = loadModelOptionsForAiUser(uid, secondDeptId);
+        String modelId = StringUtils.isNotEmpty(req.getModel()) ? req.getModel() : resolveDefaultModelForAiUser(uid, secondDeptId, allowed);
         if (StringUtils.isEmpty(modelId)) {
-            throw new ServiceException("未配置门户视频模型，请在 application.yml 的 portal.video 中配置 models 与 defaults.model");
+            throw new ServiceException("未配置门户视频模型：请在后台为该用户所属二级部门配置 model_parm，或在 portal.video.models 中配置全局列表");
+        }
+        if (StringUtils.isNotEmpty(req.getModel()) && !isModelInOptions(modelId, allowed)) {
+            throw new ServiceException("所选模型对当前部门不可用");
         }
         ByteBodyReq body = new ByteBodyReq();
         body.setModel(modelId);
         body.setContent(content);
-        applyOptionalParams(body, req);
+        applyOptionalParams(body, req, secondDeptId);
         return body;
     }
 
@@ -405,9 +480,14 @@ public class PortalVideoController extends BaseController {
     @GetMapping("/options")
     @ApiOperation("门户视频生成可选参数（模型/比例/时长等，来自配置）")
     public AjaxResult videoParamOptions() {
+        Long uid = SecurityUtils.getAiUserId();
+        Long secondDeptId = byteDeptApiKeyService.resolveSecondLevelDeptId(uid);
+        List<PortalVideoProperties.ModelOption> models = loadModelOptionsForAiUser(uid, secondDeptId);
+        PortalVideoProperties.Defaults defs = portalVideoProperties.resolveEffectiveDefaults(secondDeptId);
+        alignDefaultsModelToOptions(defs, models);
         Map<String, Object> data = new LinkedHashMap<>();
-        data.put("defaults", portalVideoProperties.getDefaults());
-        data.put("models", portalVideoProperties.getModels());
+        data.put("defaults", defs);
+        data.put("models", models);
         data.put("ratios", portalVideoProperties.getRatios());
         data.put("durations", portalVideoProperties.getDurations());
         data.put("resolutions", portalVideoProperties.getResolutions());
diff --git a/web-api/ruoyi-admin/src/main/java/com/ruoyi/config/PortalVideoProperties.java b/web-api/ruoyi-admin/src/main/java/com/ruoyi/config/PortalVideoProperties.java
index bccebdd..81241ca 100644
--- a/web-api/ruoyi-admin/src/main/java/com/ruoyi/config/PortalVideoProperties.java
+++ b/web-api/ruoyi-admin/src/main/java/com/ruoyi/config/PortalVideoProperties.java
@@ -4,7 +4,9 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
 
 import java.util.ArrayList;
+import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 门户视频生成参数（模型、比例、时长、分辨率等从配置读取，不在代码中写死业务默认值）。
@@ -17,6 +19,16 @@ public class PortalVideoProperties {
 
     private List<ModelOption> models = new ArrayList<>();
 
+    /**
+     * 按二级部门 {@code dept_id}（字符串，如 {@code "101"}）配置专属模型列表；未命中时使用全局 {@link #models}。
+     */
+    private Map<String, List<ModelOption>> modelsBySecondDept = new LinkedHashMap<>();
+
+    /**
+     * 按二级部门覆盖 {@link #defaults} 中的字段；仅配置需要覆盖的项即可。
+     */
+    private Map<String, Defaults> defaultsBySecondDept = new LinkedHashMap<>();
+
     private List<String> ratios = new ArrayList<>();
 
     private List<Integer> durations = new ArrayList<>();
@@ -54,6 +66,22 @@ public class PortalVideoProperties {
         this.models = models != null ? models : new ArrayList<>();
     }
 
+    public Map<String, List<ModelOption>> getModelsBySecondDept() {
+        return modelsBySecondDept;
+    }
+
+    public void setModelsBySecondDept(Map<String, List<ModelOption>> modelsBySecondDept) {
+        this.modelsBySecondDept = modelsBySecondDept != null ? modelsBySecondDept : new LinkedHashMap<>();
+    }
+
+    public Map<String, Defaults> getDefaultsBySecondDept() {
+        return defaultsBySecondDept;
+    }
+
+    public void setDefaultsBySecondDept(Map<String, Defaults> defaultsBySecondDept) {
+        this.defaultsBySecondDept = defaultsBySecondDept != null ? defaultsBySecondDept : new LinkedHashMap<>();
+    }
+
     public List<String> getRatios() {
         return ratios;
     }
@@ -91,6 +119,70 @@ public class PortalVideoProperties {
         return null;
     }
 
+    public List<ModelOption> resolveModelsForSecondDept(Long secondDeptId) {
+        if (secondDeptId != null) {
+            List<ModelOption> byDept = modelsBySecondDept.get(String.valueOf(secondDeptId));
+            if (byDept != null && !byDept.isEmpty()) {
+                return byDept;
+            }
+        }
+        return models;
+    }
+
+    public Defaults resolveEffectiveDefaults(Long secondDeptId) {
+        Defaults out = new Defaults();
+        Defaults g = this.defaults;
+        out.setModel(g.getModel());
+        out.setDuration(g.getDuration());
+        out.setResolution(g.getResolution());
+        out.setRatio(g.getRatio());
+        if (secondDeptId != null) {
+            Defaults o = defaultsBySecondDept.get(String.valueOf(secondDeptId));
+            if (o != null) {
+                if (o.getModel() != null && !o.getModel().isEmpty()) {
+                    out.setModel(o.getModel());
+                }
+                if (o.getDuration() != null) {
+                    out.setDuration(o.getDuration());
+                }
+                if (o.getResolution() != null && !o.getResolution().isEmpty()) {
+                    out.setResolution(o.getResolution());
+                }
+                if (o.getRatio() != null && !o.getRatio().isEmpty()) {
+                    out.setRatio(o.getRatio());
+                }
+            }
+        }
+        return out;
+    }
+
+    /**
+     * 在给定二级部门下，解析默认模型：先看合并后的 defaults.model，否则取该部门 models 列表首项。
+     */
+    public String resolveDefaultModelIdForSecondDept(Long secondDeptId) {
+        Defaults d = resolveEffectiveDefaults(secondDeptId);
+        if (d.getModel() != null && !d.getModel().isEmpty()) {
+            return d.getModel();
+        }
+        List<ModelOption> m = resolveModelsForSecondDept(secondDeptId);
+        if (!m.isEmpty() && m.get(0).getValue() != null && !m.get(0).getValue().isEmpty()) {
+            return m.get(0).getValue();
+        }
+        return null;
+    }
+
+    public boolean isModelAllowedForSecondDept(String modelId, Long secondDeptId) {
+        if (modelId == null || modelId.isEmpty()) {
+            return true;
+        }
+        for (ModelOption opt : resolveModelsForSecondDept(secondDeptId)) {
+            if (modelId.equals(opt.getValue())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     public static class Defaults {
         private String model;
         private Integer duration;
diff --git a/web-api/ruoyi-admin/src/main/resources/application.yml b/web-api/ruoyi-admin/src/main/resources/application.yml
index 184e61c..98d5a40 100644
--- a/web-api/ruoyi-admin/src/main/resources/application.yml
+++ b/web-api/ruoyi-admin/src/main/resources/application.yml
@@ -261,6 +261,8 @@ portal:
         value: ep-20260326165811-dlkth
       - label: Seedance 2.0 Fast
         value: ep-20260326170056-dkj9m
+    # 可选：按二级部门 dept_id 覆盖 YAML（仅当库表 sys_dept.model_parm 为空时才会用到）
+    # models-by-second-dept / defaults-by-second-dept 见 PortalVideoProperties 说明
     ratios:
       - "16:9"
       - "9:16"
diff --git a/web-api/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/SysDept.java b/web-api/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/SysDept.java
index 31a9a25..b03b96d 100644
--- a/web-api/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/SysDept.java
+++ b/web-api/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/SysDept.java
@@ -55,6 +55,9 @@ public class SysDept extends BaseEntity
     /** Byte API Key */
     private String byteApiKey;
 
+    /** 门户视频模型列表 JSON：[{"label":"…","value":"ep-…"},…] */
+    private String modelParm;
+
     /** Byte project */
     private String project;
     
@@ -187,6 +190,16 @@ public class SysDept extends BaseEntity
         this.byteApiKey = byteApiKey;
     }
 
+    public String getModelParm()
+    {
+        return modelParm;
+    }
+
+    public void setModelParm(String modelParm)
+    {
+        this.modelParm = modelParm;
+    }
+
     public String getProject()
     {
         return project;
@@ -219,6 +232,7 @@ public class SysDept extends BaseEntity
             .append("phone", getPhone())
             .append("email", getEmail())
             .append("byteApiKey", getByteApiKey())
+            .append("modelParm", getModelParm())
                 .append("project", getProject())
             .append("status", getStatus())
             .append("delFlag", getDelFlag())
diff --git a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteDeptApiKeyService.java b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteDeptApiKeyService.java
index bf2a8ef..468a2ec 100644
--- a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteDeptApiKeyService.java
+++ b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteDeptApiKeyService.java
@@ -9,4 +9,15 @@ public interface IByteDeptApiKeyService {
      * Redis 键：{userId}_byte_api_key，优先读缓存，再读库；均无有效 key 则抛出业务异常。
      */
     String resolveVolcApiKey(Long aiUserId);
+
+    /**
+     * 当前 AI 用户所属二级部门 {@code sys_dept.dept_id}（与 {@link #resolveVolcApiKey(Long)} 中使用的二级节点一致）。
+     * 用户未分配部门或部门数据缺失时返回 null。
+     */
+    Long resolveSecondLevelDeptId(Long aiUserId);
+
+    /**
+     * 当前用户所属二级部门 {@code sys_dept.model_parm}（JSON 模型列表）；未配置或为空时返回 null。
+     */
+    String resolveSecondLevelModelParm(Long aiUserId);
 }
diff --git a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/AiUserServiceImpl.java b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/AiUserServiceImpl.java
index 1fd0935..f17a3ca 100644
--- a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/AiUserServiceImpl.java
+++ b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/AiUserServiceImpl.java
@@ -149,13 +149,23 @@ public class AiUserServiceImpl implements IAiUserService {
     public int updateAiUser(AiUser aiUser) {
         aiUser.setUpdateTime(DateUtils.getNowDate());
         if (StringUtils.isNotEmpty(aiUser.getPassword())) {
-            aiUser.setPassword(SecurityUtils.encryptPassword(aiUser.getPassword()));
+            // 登录后 update 常带上库里的 BCrypt 密文；勿对密文再 encrypt，否则第二次登录永远密码错误
+            if (!isBcryptPasswordHash(aiUser.getPassword())) {
+                aiUser.setPassword(SecurityUtils.encryptPassword(aiUser.getPassword()));
+            }
         } else {
             aiUser.setPassword(null);
         }
         return aiUserMapper.updateById(aiUser);
     }
 
+    private static boolean isBcryptPasswordHash(String password) {
+        if (password == null || password.length() < 4) {
+            return false;
+        }
+        return password.startsWith("$2a$") || password.startsWith("$2b$") || password.startsWith("$2y$");
+    }
+
     @Override
     public int countAiUserByDeptId(Long deptId) {
         if (deptId == null) {
diff --git a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteDeptApiKeyServiceImpl.java b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteDeptApiKeyServiceImpl.java
index 440c417..7c43316 100644
--- a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteDeptApiKeyServiceImpl.java
+++ b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteDeptApiKeyServiceImpl.java
@@ -58,7 +58,7 @@ public class ByteDeptApiKeyServiceImpl implements IByteDeptApiKeyService {
         // 优先使用用户直接归属部门的 Key；多数业务把用户挂在分公司（如 101）并在该节点配 byte_api_key
         String apiKey = trimKey(userDept.getByteApiKey());
         if (StringUtils.isEmpty(apiKey)) {
-            Long fallbackDeptId = resolveSecondLevelDeptId(userDept);
+            Long fallbackDeptId = secondLevelDeptIdFrom(userDept);
             if (!fallbackDeptId.equals(userDept.getDeptId())) {
                 SysDept keyDept = sysDeptService.selectDeptById(fallbackDeptId);
                 if (keyDept != null) {
@@ -75,6 +75,39 @@ public class ByteDeptApiKeyServiceImpl implements IByteDeptApiKeyService {
         return apiKey;
     }
 
+    @Override
+    public Long resolveSecondLevelDeptId(Long aiUserId) {
+        if (aiUserId == null) {
+            return null;
+        }
+        AiUser aiUser = aiUserService.selectAiUserById(aiUserId);
+        if (aiUser == null || aiUser.getDeptId() == null) {
+            return null;
+        }
+        SysDept userDept = sysDeptService.selectDeptById(aiUser.getDeptId());
+        if (userDept == null) {
+            return null;
+        }
+        return secondLevelDeptIdFrom(userDept);
+    }
+
+    @Override
+    public String resolveSecondLevelModelParm(Long aiUserId) {
+        Long secondId = resolveSecondLevelDeptId(aiUserId);
+        if (secondId == null) {
+            return null;
+        }
+        SysDept second = sysDeptService.selectDeptById(secondId);
+        if (second == null) {
+            return null;
+        }
+        String raw = second.getModelParm();
+        if (StringUtils.isEmpty(raw)) {
+            return null;
+        }
+        return raw.trim();
+    }
+
     private static String trimKey(String raw) {
         return raw == null ? null : raw.trim();
     }
@@ -83,7 +116,7 @@ public class ByteDeptApiKeyServiceImpl implements IByteDeptApiKeyService {
      * 二级部门：祖级路径中，紧接在「一级」（ancestors 第二段）之下的部门节点；
      * 深度不足时退回用户当前部门。
      */
-    private Long resolveSecondLevelDeptId(SysDept userDept) {
+    private Long secondLevelDeptIdFrom(SysDept userDept) {
         String ancestors = userDept.getAncestors();
         if (StringUtils.isEmpty(ancestors)) {
             return userDept.getDeptId();
diff --git a/web-api/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml b/web-api/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
index bc07b1a..f47ecca 100644
--- a/web-api/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
+++ b/web-api/ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml
@@ -14,6 +14,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 		<result property="phone"      column="phone"       />
 		<result property="email"      column="email"       />
 		<result property="byteApiKey" column="byte_api_key" />
+		<result property="modelParm" column="model_parm" />
 		<result property="status"     column="status"      />
 		<result property="delFlag"    column="del_flag"    />
 		<result property="parentName" column="parent_name" />
@@ -60,8 +61,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 		order by d.parent_id, d.order_num
 	</select>
     
-    <select id="selectDeptById" parameterType="Long" resultMap="SysDeptResult">
-		select d.dept_id, d.parent_id, d.ancestors, d.dept_name, d.order_num, d.leader, d.phone, d.email, d.byte_api_key, d.status, d.project,
+	<select id="selectDeptById" parameterType="Long" resultMap="SysDeptResult">
+		select d.dept_id, d.parent_id, d.ancestors, d.dept_name, d.order_num, d.leader, d.phone, d.email, d.byte_api_key, d.model_parm, d.status, d.project,
 			(select dept_name from sys_dept where dept_id = d.parent_id) parent_name
 		from sys_dept d
 		where d.dept_id = #{deptId}
@@ -104,6 +105,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  			<if test="phone != null and phone != ''">phone,</if>
  			<if test="email != null and email != ''">email,</if>
 			<if test="byteApiKey != null">byte_api_key,</if>
+			<if test="modelParm != null">model_parm,</if>
 			<if test="project != null">project,</if>
  			<if test="status != null">status,</if>
 		<if test="createBy != null and createBy != ''">create_by,</if>
@@ -118,6 +120,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  			<if test="phone != null and phone != ''">#{phone},</if>
  			<if test="email != null and email != ''">#{email},</if>
 			<if test="byteApiKey != null">#{byteApiKey},</if>
+			<if test="modelParm != null">#{modelParm},</if>
 			<if test="project != null">#{project},</if>
  			<if test="status != null">#{status},</if>
  			<if test="createBy != null and createBy != ''">#{createBy},</if>
@@ -136,6 +139,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  			<if test="phone != null">phone = #{phone},</if>
  			<if test="email != null">email = #{email},</if>
 			<if test="byteApiKey != null">byte_api_key = #{byteApiKey},</if>
+			<if test="modelParm != null">model_parm = #{modelParm},</if>
 			<if test="project != null">project = #{project},</if>
  			<if test="status != null and status != ''">status = #{status},</if>
  			<if test="updateBy != null and updateBy != ''">update_by = #{updateBy},</if>