diff --git a/packages/uniapp-components/cascader/cascader.vue b/packages/uniapp-components/cascader/cascader.vue
index 882e9c4db..db6a43b77 100644
--- a/packages/uniapp-components/cascader/cascader.vue
+++ b/packages/uniapp-components/cascader/cascader.vue
@@ -573,7 +573,7 @@ export default {
         this.isSearching = false;
       },
       onFilterChange(e) {
-        const value = e?.value ?? e?.detail?.value ?? '';
+        const value = coalesce(e?.value, e?.detail?.value, '');
         if (!this.filterDebounced) {
           this.filterDebounced = debounce((kw) => this.applyFilter(kw), 200);
         }
@@ -583,7 +583,7 @@ export default {
         this.resetFilter();
       },
       applyFilter(rawKeyword) {
-        const keyword = String(rawKeyword ?? '').trim();
+        const keyword = String(coalesce(rawKeyword, '')).trim();
         if (!keyword) {
           this.resetFilter();
           return;
diff --git a/packages/uniapp-components/form-item/form-item.vue b/packages/uniapp-components/form-item/form-item.vue
index 90f34e6b3..11a00dbeb 100644
--- a/packages/uniapp-components/form-item/form-item.vue
+++ b/packages/uniapp-components/form-item/form-item.vue
@@ -11,7 +11,7 @@
       ' ' +
       formItemClass +
       '__' +
-      name +
+      dataNameKey +
       ' ' +
       errorClasses +
       ' ' +
@@ -86,7 +86,7 @@ import { isNumeric } from '../common/validator';
 import TIcon from '../icon/icon.vue';
 import usingConfig from '../mixins/using-config';
 
-import { validateRules, ValidateStatus } from './form-model';
+import { validateRules, ValidateStatus, getByPath } from './form-model';
 import props from './props';
 
 const parentComponentName = 'form';
@@ -160,6 +160,10 @@ export default {
         const contentAlign = this.dataContentAlign;
         return contentAlign ? `text-align: ${contentAlign}` : '';
       },
+      // 供 :class 拼接使用：name="pat.acctType" → "pat-acctType"，避免 CSS class 里的点号被当成选择器分隔符
+      dataNameKey() {
+        return String(this.name || '').replace(/\./g, '-');
+      },
     },
     watch: {},
     created() {
@@ -217,7 +221,8 @@ export default {
         const { name } = this;
         if (name && this.form) {
           const { formData } = this.form;
-          this.initialValue = formData[name];
+          // 支持 name="pat.acctType" 嵌套路径：走 form 表单层的 data 兜底（form-item 拿不到时回退到 form.data）
+          this.initialValue = coalesce(getByPath(formData, name), getByPath(this.form.data, name));
         }
       },
 
@@ -234,7 +239,7 @@ export default {
         const { name } = this;
         if (name && this.form) {
           const { formData } = this.form;
-          return formData[name];
+          return coalesce(getByPath(formData, name), getByPath(this.form.data, name));
         }
         return undefined;
       },
@@ -267,7 +272,7 @@ export default {
           return { [this.name]: true };
         }
 
-        const value = data[this.name];
+        const value = getByPath(data, this.name);
         const context = { formData: data, name: this.name };
         const results = await validateRules(value, filteredRules, context);
 
diff --git a/packages/uniapp-components/form-item/form-model.ts b/packages/uniapp-components/form-item/form-model.ts
index 8aec568a8..d2a595b1a 100644
--- a/packages/uniapp-components/form-item/form-model.ts
+++ b/packages/uniapp-components/form-item/form-model.ts
@@ -140,3 +140,46 @@ export async function validate(value: any, rules: any[], context?: { formData: a
 
 // 兼容已有导入
 export const validateRules = validate;
+
+/**
+ * 按点号路径从对象中取值。
+ * 支持 'a'、'a.b'、'a.b.c' 三种形式；当任意一级不是对象或不存在时返回 undefined。
+ * 用于支持 form-item 的 name="pat.acctType" 嵌套对象属性命名。
+ */
+export function getByPath(obj: any, path: string): any {
+  if (obj == null || !path) return undefined;
+  if (path.indexOf('.') === -1) return obj[path];
+
+  const keys = path.split('.');
+  let cursor: any = obj;
+  for (let i = 0; i < keys.length; i += 1) {
+    if (cursor == null) return undefined;
+    cursor = cursor[keys[i]];
+  }
+  return cursor;
+}
+
+/**
+ * 按点号路径向对象中写值，沿途不存在的中转对象会被创建为 {}。
+ * 返回 boolean 表示是否成功写入（仅 path 非法时返回 false）。
+ */
+export function setByPath(obj: any, path: string, value: any): boolean {
+  if (obj == null || !path) return false;
+  if (path.indexOf('.') === -1) {
+    obj[path] = value;
+    return true;
+  }
+
+  const keys = path.split('.');
+  let cursor: any = obj;
+  for (let i = 0; i < keys.length - 1; i += 1) {
+    const key = keys[i];
+    const next = cursor[key];
+    if (next == null || typeof next !== 'object') {
+      cursor[key] = {};
+    }
+    cursor = cursor[key];
+  }
+  cursor[keys[keys.length - 1]] = value;
+  return true;
+}
diff --git a/packages/uniapp-components/form/_example/horizontal/index.vue b/packages/uniapp-components/form/_example/horizontal/index.vue
index a3a6c433e..eb71be6a2 100644
--- a/packages/uniapp-components/form/_example/horizontal/index.vue
+++ b/packages/uniapp-components/form/_example/horizontal/index.vue
@@ -79,10 +79,10 @@
         />
       </t-form-item>
 
-      <t-form-item arrow label="籍贯" name="place" content-align="left">
+      <t-form-item arrow label="籍贯" name="address.city" content-align="left">
         <t-input
           ref="input"
-          :value="formData.place"
+          :value="formData.address.city"
           :disabled="disabled"
           borderless
           align="right"
@@ -224,7 +224,9 @@ export default {
         password: '',
         gender: '',
         birth: '2020-01-01',
-        place: '',
+        address: {
+          city: '',
+        },
         age: 3,
         description: 2,
         resume: '',
@@ -409,7 +411,7 @@ export default {
         description: [{ validator: (val) => val > 3, message: '分数过低会影响整体评价' }],
         gender: [{ validator: (val) => val !== '', message: '不能为空' }],
         birth: [{ validator: (val) => val !== '', message: '不能为空' }],
-        place: [{ validator: (val) => val !== '', message: '不能为空' }],
+        'address.city': [{ validator: (val) => val !== '', message: '不能为空' }],
         resume: [{ validator: (val) => val !== '', message: '不能为空' }],
       },
     };
@@ -456,7 +458,7 @@ export default {
     onChangeCascader(e) {
       const { selectedOptions } = e;
       const placeText = selectedOptions?.map((item) => item.label).join('/');
-      this.formData.place = placeText;
+      this.formData.address.city = placeText;
       this.visibleCascader = false;
     },
     showCascader() {
diff --git a/packages/uniapp-components/form/form.vue b/packages/uniapp-components/form/form.vue
index a0d837d40..7d51f6ff1 100644
--- a/packages/uniapp-components/form/form.vue
+++ b/packages/uniapp-components/form/form.vue
@@ -12,6 +12,7 @@ import { coalesce } from '../common/utils';
 import tools from '../common/utils.wxs';
 
 import props from './props';
+import { getByPath, setByPath } from '../form-item/form-model';
 
 const name = `${prefix}-form`;
 
@@ -83,7 +84,8 @@ export default {
       // 更新表单数据
       updateFormData(name, value) {
         const { formData } = this;
-        formData[name] = value;
+        // 支持 name="pat.acctType" 嵌套路径：按点号路径写值，自动补齐中转对象
+        setByPath(formData, name, value);
         this.formData = formData;
       },
 
@@ -230,7 +232,7 @@ export default {
             if (resetType === 'empty') {
               this.updateFormData(child.name, this.getEmptyValue(child.name));
             } else if (resetType === 'initial') {
-              this.updateFormData(child.name, initialData[child.name]);
+              this.updateFormData(child.name, getByPath(initialData, child.name));
             }
             child.resetField();
           });
@@ -265,7 +267,8 @@ export default {
       // 获取空值
       getEmptyValue(name) {
         const { formData } = this;
-        const currentValue = formData[name];
+        // 支持 name="pat.acctType" 嵌套路径
+        const currentValue = getByPath(formData, name);
 
         if (Array.isArray(currentValue)) {
           return [];
diff --git a/packages/uniapp-components/image-viewer/image-viewer.vue b/packages/uniapp-components/image-viewer/image-viewer.vue
index 68bcce807..91cc70c28 100644
--- a/packages/uniapp-components/image-viewer/image-viewer.vue
+++ b/packages/uniapp-components/image-viewer/image-viewer.vue
@@ -113,7 +113,7 @@
 <script>
 import { prefix } from '../common/config';
 import { uniComponent } from '../common/src/index';
-import { styles, calcIcon, systemInfo } from '../common/utils';
+import { styles, calcIcon, systemInfo, coalesce } from '../common/utils';
 
 import tools from '../common/utils.wxs';
 import TIcon from '../icon/icon';
@@ -318,7 +318,7 @@ export default {
       },
 
       onMovableScale(e) {
-        const scale = e?.detail?.scale ?? 1;
+        const scale = coalesce(e?.detail?.scale, 1);
         this.currentScale = scale;
       },
 
diff --git a/packages/uniapp-components/navbar/_example/custom-color/index.vue b/packages/uniapp-components/navbar/_example/custom-color/index.vue
index a7453b2ea..765456826 100644
--- a/packages/uniapp-components/navbar/_example/custom-color/index.vue
+++ b/packages/uniapp-components/navbar/_example/custom-color/index.vue
@@ -2,7 +2,8 @@
   <view>
     <t-navbar t-class="custom-navbar" left-arrow title="标题文字" :fixed="false" @right-click="handleRightClick">
       <template #right>
-        <div>右侧内容</div>
+        <t-icon name="ellipsis" size="24px" />
+        <!-- <div>右侧内容</div> -->
       </template>
     </t-navbar>
   </view>
@@ -10,6 +11,7 @@
 
 <script>
 import TNavbar from '@tdesign/uniapp/navbar/navbar.vue';
+import TIcon from '@tdesign/uniapp/icon/icon.vue';
 
 export default {
   options: {
@@ -17,6 +19,7 @@ export default {
   },
   components: {
     TNavbar,
+    TIcon,
   },
   data() {
     return {};
diff --git a/packages/uniapp-components/navbar/navbar.less b/packages/uniapp-components/navbar/navbar.less
index 5b38a09d1..bd02224e2 100644
--- a/packages/uniapp-components/navbar/navbar.less
+++ b/packages/uniapp-components/navbar/navbar.less
@@ -74,9 +74,13 @@
     box-sizing: content-box;
   }
 
-  &__left {
+  &__left,
+  &__right {
     position: relative;
     box-sizing: border-box;
+  }
+
+  &__left {
     max-width: var(--td-navbar-left-max-width);
     overflow: hidden;
     display: flex;
@@ -93,6 +97,17 @@
     }
   }
 
+  &__right {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    right: 0;
+    display: flex;
+    align-items: center;
+    margin-right: @spacer-1;
+    transition: opacity 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
+  }
+
   &__capsule {
     box-sizing: border-box;
     width: @navbar-capsule-width;
diff --git a/packages/uniapp-components/navbar/navbar.vue b/packages/uniapp-components/navbar/navbar.vue
index be6379d0f..b509528b1 100644
--- a/packages/uniapp-components/navbar/navbar.vue
+++ b/packages/uniapp-components/navbar/navbar.vue
@@ -171,13 +171,16 @@ export default {
 
         const iBoxStyle = {
           '--td-navbar-padding-top': `${windowInfo.statusBarHeight}px`,
-          '--td-navbar-right': `${windowInfo.windowWidth - iMenuRect.left}px`, // 导航栏右侧小程序胶囊按钮宽度
           '--td-navbar-left-max-width': `${iMenuRect.left}px`, // 左侧内容最大宽度
           '--td-navbar-capsule-height': `${iMenuRect.height}px`, // 胶囊高度
           '--td-navbar-capsule-width': `${iMenuRect.width}px`, // 胶囊宽度
           '--td-navbar-height': `${(iMenuRect.top - windowInfo.statusBarHeight) * 2 + iMenuRect.height}px`,
         };
-        // #ifdef H5 || APP
+        // #ifdef MP
+        iBoxStyle['--td-navbar-right'] = `${windowInfo.windowWidth - iMenuRect.left}px`; // 小程序端保留胶囊按钮宽度
+        // #endif
+        // #ifndef MP
+        iBoxStyle['--td-navbar-right'] = '0px'; // 非小程序端不预留胶囊按钮空间，对齐 mobile-vue
         delete iBoxStyle['--td-navbar-height'];
         // #endif
 
diff --git a/packages/uniapp-components/picker-item/picker-item.vue b/packages/uniapp-components/picker-item/picker-item.vue
index dc3fe5c18..5ac22330b 100644
--- a/packages/uniapp-components/picker-item/picker-item.vue
+++ b/packages/uniapp-components/picker-item/picker-item.vue
@@ -65,7 +65,7 @@
 import { prefix } from '../common/config';
 import { ChildrenMixin, RELATION_MAP } from '../common/relation';
 import { uniComponent } from '../common/src/index';
-import { nextTick } from '../common/utils';
+import { nextTick, coalesce } from '../common/utils';
 import tools from '../common/utils.wxs';
 import TIcon from '../icon/icon.vue';
 
@@ -325,7 +325,7 @@ export default {
         if (optionsCount > 500) {
           // 构建临时 Map（只在查找时构建，不缓存）
           const valueMap = new Map(formatOptions.map((item, idx) => [item[keys?.value], idx]));
-          index = valueMap.get(value) ?? -1;
+          index = coalesce(valueMap.get(value), -1);
         } else {
           index = formatOptions.findIndex((item) => item[keys?.value] === value);
         }
diff --git a/packages/uniapp-components/segmented/segmented.vue b/packages/uniapp-components/segmented/segmented.vue
index bb38bc797..ae90cc4e7 100644
--- a/packages/uniapp-components/segmented/segmented.vue
+++ b/packages/uniapp-components/segmented/segmented.vue
@@ -116,7 +116,7 @@ export default {
           }
           return {
             ...option,
-            label: option.label ?? String(option.value),
+            label: coalesce(option.label, String(option.value)),
             icon: option.icon ? calcIcon(option.icon) : null,
           };
         });