diff --git a/.env.development b/.env.development
index c2a791b..918c77c 100644
--- a/.env.development
+++ b/.env.development
@@ -7,8 +7,7 @@ VITE_APP_PORT = 4096
 VITE_APP_BASE_API = '/dev-api'
 
 # API 服务器的 URL
-# VITE_APP_API_URL = http://localhost:8000
-VITE_APP_API_URL = https://api.youlai.tech
+VITE_APP_API_URL = http://localhost:8000
 
 # WebSocket 服务器的 URL，不配置默认关闭 WebSocket
-#VITE_APP_WS_ENDPOINT= ws://localhost:4096/ws
\ No newline at end of file
+#VITE_APP_WS_ENDPOINT= ws://localhost:4096/ws
diff --git a/.env.production b/.env.production
index 1226d8b..d4836e7 100644
--- a/.env.production
+++ b/.env.production
@@ -2,3 +2,4 @@
 
 # API 基础路径，开发环境下的请求前缀
 VITE_APP_BASE_API = '/prod-api'
+VITE_APP_API_URL = https://api.youlai.tech
diff --git a/src/config/index.ts b/src/config/index.ts
new file mode 100644
index 0000000..235662f
--- /dev/null
+++ b/src/config/index.ts
@@ -0,0 +1,5 @@
+/**
+ * 配置统一导出
+ */
+
+export * from "./menu";
diff --git a/src/constants/work-menu.ts b/src/config/menu.ts
similarity index 95%
rename from src/constants/work-menu.ts
rename to src/config/menu.ts
index 868aee7..59b257e 100644
--- a/src/constants/work-menu.ts
+++ b/src/config/menu.ts
@@ -14,7 +14,7 @@ export interface WorkMenuGroup {
   children: WorkMenuItem[];
 }
 
-export const workMenuConfig: WorkMenuGroup[] = [
+export const menuConfig: WorkMenuGroup[] = [
   {
     title: "系统管理",
     children: [
diff --git a/src/pages/index/index.vue b/src/pages/index/index.vue
index 866964e..f2ae210 100644
--- a/src/pages/index/index.vue
+++ b/src/pages/index/index.vue
@@ -31,59 +31,59 @@
 
     <!-- 通知公告 -->
     <view class="section">
-      <wd-notice-bar
-        :text="noticeText"
-        color="#34D19D"
-        type="info"
-        @click="handleNoticeClick"
-      >
-        <template #prefix>
-          <wd-tag color="#FAA21E" bg-color="#FAA21E" plain custom-style="margin-right: 10rpx">
-            通知公告
-          </wd-tag>
-        </template>
-      </wd-notice-bar>
+      <view class="notice-bar" @click="handleNoticeClick">
+        <view class="notice-bar__icon">
+          <wd-icon name="check-outline" size="32rpx" color="#34D19D" />
+        </view>
+        <view class="notice-bar__content">
+          <text class="notice-bar__text">{{ noticeText || "暂无通知公告" }}</text>
+        </view>
+      </view>
     </view>
 
     <!-- 数据统计 -->
     <view class="section">
-      <wd-card>
-        <template #title>
-          <view class="overview-header">
-            <text class="overview-header__title">今日数据概览</text>
-            <view class="overview-header__more" @click="handleOverviewMore">查看更多</view>
+      <view class="stat-grid">
+        <view class="stat-card stat-card--green">
+          <view class="stat-card__bg">
+            <view class="stat-card__icon stat-card__icon--user"></view>
           </view>
-        </template>
-
-        <view class="overview-grid">
-          <view class="overview-item">
-            <image class="overview-item__icon" src="/static/icons/visitor.png" />
-            <view class="overview-item__info">
-              <text class="overview-item__label">访客数</text>
-              <text class="overview-item__value">{{ visitStatsData.todayUvCount }}</text>
-            </view>
-          </view>
-          <view class="overview-item">
-            <image class="overview-item__icon" src="/static/icons/browser.png" />
-            <view class="overview-item__info">
-              <text class="overview-item__label">浏览量</text>
-              <text class="overview-item__value">{{ visitStatsData.todayPvCount }}</text>
-            </view>
-          </view>
-          <view class="overview-item" v-if="appVersion">
-            <image class="overview-item__icon" src="/static/icons/setting.png" />
-            <view class="overview-item__info">
-              <text class="overview-item__label">版本</text>
-              <text class="overview-item__value">{{ appVersion }}</text>
-            </view>
+          <view class="stat-card__head">
+            <text class="stat-card__label">访客数</text>
+            <view class="stat-card__dot stat-card__dot--green"></view>
           </view>
+          <text class="stat-card__num stat-card__num--green">
+            {{ visitStatsData.todayUvCount }}
+          </text>
         </view>
-      </wd-card>
+        <view class="stat-card stat-card--blue">
+          <view class="stat-card__bg">
+            <view class="stat-card__icon stat-card__icon--eye"></view>
+          </view>
+          <view class="stat-card__head">
+            <text class="stat-card__label">浏览量</text>
+            <view class="stat-card__dot stat-card__dot--blue"></view>
+          </view>
+          <text class="stat-card__num stat-card__num--blue">
+            {{ visitStatsData.todayPvCount }}
+          </text>
+        </view>
+        <view v-if="appVersion" class="stat-card stat-card--orange stat-card--full">
+          <view class="stat-card__bg">
+            <view class="stat-card__icon stat-card__icon--gear"></view>
+          </view>
+          <view class="stat-card__head">
+            <text class="stat-card__label">应用版本</text>
+            <view class="stat-card__dot stat-card__dot--orange"></view>
+          </view>
+          <text class="stat-card__num stat-card__num--orange">{{ appVersion }}</text>
+        </view>
+      </view>
     </view>
 
     <!-- 访问趋势图表 -->
     <view class="section">
-      <wd-card>
+      <wd-card custom-class="chart-card">
         <template #title>
           <view class="chart-header">
             <text class="chart-header__title">访问趋势</text>
@@ -130,7 +130,8 @@ import { onReady } from "@dcloudio/uni-app";
 import { dayjs } from "wot-design-uni";
 import { useRouter } from "uni-mini-router";
 import { useUserStore } from "@/store";
-import { workMenuConfig } from "@/constants/work-menu";
+import { menuConfig } from "@/config/menu";
+import { checkLogin, isLoggedIn } from "@/utils/auth";
 import LogAPI, { type VisitStatsVO as ApiVisitStatsVO, type VisitTrendVO } from "@/api/log";
 import NoticeAPI, { type NoticePageVO } from "@/api/notice";
 
@@ -190,16 +191,36 @@ const noticeText = computed(() => {
 // 用户权限列表
 const userPerms = computed(() => userStore.userInfo?.perms || []);
 
+// 是否已登录
+const isLogged = computed(() => isLoggedIn());
+
 // 检查是否有权限
 const hasPermission = (perm: string) => {
   if (!perm) return true;
   return userPerms.value.includes(perm) || userPerms.value.includes("*:*:*");
 };
 
-// 快捷入口：按权限过滤后取前 4 个
-const quickNavList = computed(() => {
+// 默认菜单（未登录时显示）
+const defaultNavList = computed(() => {
   const result: { icon: string; title: string; url: string; perm: string }[] = [];
-  for (const group of workMenuConfig) {
+  for (const group of menuConfig) {
+    for (const item of group.children) {
+      result.push(item);
+      if (result.length >= 4) {
+        return result;
+      }
+    }
+  }
+  return result;
+});
+
+// 快捷入口：已登录按权限过滤，未登录显示默认菜单
+const quickNavList = computed(() => {
+  if (!isLogged.value) {
+    return defaultNavList.value;
+  }
+  const result: { icon: string; title: string; url: string; perm: string }[] = [];
+  for (const group of menuConfig) {
     for (const item of group.children) {
       if (hasPermission(item.perm)) {
         result.push(item);
@@ -252,6 +273,11 @@ function loadAppVersion() {
 }
 
 async function loadNoticeData() {
+  // 未登录时不调用通知接口
+  if (!isLogged.value) {
+    noticeList.value = [];
+    return;
+  }
   try {
     const { list } = await NoticeAPI.getMyNoticePage({ pageNum: 1, pageSize: 2 });
     noticeList.value = list || [];
@@ -293,6 +319,10 @@ async function loadVisitTrendData() {
 // ============================================================================
 
 function handleNavClick(item: NavItem) {
+  // 未登录时先检查登录状态并跳转登录页
+  if (!checkLogin()) {
+    return;
+  }
   router.push({ path: item.url });
 }
 
@@ -300,10 +330,6 @@ function handleNoticeClick() {
   router.push({ path: "/pages/work/notice/index" });
 }
 
-function handleOverviewMore() {
-  router.push({ path: "/pages/work/log/index" });
-}
-
 function handleSwiperClick(e: any) {
   console.log("Swiper click:", e);
 }
@@ -435,8 +461,8 @@ onReady(() => {
 .section--overlay {
   position: relative;
   z-index: 2;
-  margin-top: -72rpx;
-  padding: 16rpx 8rpx;
+  margin-top: -140rpx;
+  padding: 18rpx 8rpx;
   background: var(--color-bg);
   border-radius: 24rpx;
   box-shadow: 0 16rpx 36rpx rgba(0, 0, 0, 0.08);
@@ -466,45 +492,202 @@ onReady(() => {
 }
 
 // ============================================================================
-// 数据统计网格
+// 通知栏
 // ============================================================================
 
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(2, 1fr);
-  gap: 24rpx;
-}
-
-.stats-card {
+.notice-bar {
   display: flex;
   align-items: center;
-  padding: 32rpx;
-  background-color: var(--color-bg);
-  border-radius: 24rpx;
+  background: #fff;
+  border-radius: 16rpx;
+  padding: 24rpx 24rpx 24rpx 20rpx;
+  border: 1rpx solid rgba(0, 0, 0, 0.04);
+  box-shadow: 0 4rpx 20rpx rgba(0, 0, 0, 0.04);
 
   &__icon {
-    width: 80rpx;
-    height: 80rpx;
-    border-radius: 16rpx;
+    flex-shrink: 0;
+    width: 48rpx;
+    height: 48rpx;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: rgba(52, 209, 157, 0.1);
+    border-radius: 12rpx;
+    margin-right: 16rpx;
   }
 
-  &__info {
-    margin-left: 32rpx;
+  &__content {
+    flex: 1;
+    overflow: hidden;
+  }
+
+  &__text {
+    font-size: 26rpx;
+    color: #333;
+    font-weight: 500;
+    display: -webkit-box;
+    line-clamp: 1;
+    -webkit-line-clamp: 1;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+  }
+}
+
+// ============================================================================
+// 统计卡片（简洁大气风格）
+// ============================================================================
+
+.stat-grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 16rpx;
+}
+
+.stat-card {
+  background: #fff;
+  border-radius: 16rpx;
+  padding: 24rpx 20rpx;
+  display: flex;
+  flex-direction: column;
+  box-shadow: 0 4rpx 20rpx rgba(0, 0, 0, 0.04);
+  border: 1rpx solid rgba(0, 0, 0, 0.04);
+  position: relative;
+  overflow: hidden;
+
+  // 背景图标容器
+  &__bg {
+    position: absolute;
+    right: 12rpx;
+    bottom: 12rpx;
+    width: 70rpx;
+    height: 70rpx;
+    opacity: 0.08;
+    pointer-events: none;
+  }
+
+  // SVG 装饰图形
+  &__icon {
+    width: 100%;
+    height: 100%;
+
+    // 用户组图标 - 访客数
+    &--user {
+      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48' fill='%232ab789'%3E%3Ccircle cx='24' cy='16' r='8'/%3E%3Ccircle cx='10' cy='20' r='6'/%3E%3Ccircle cx='38' cy='20' r='6'/%3E%3Cpath d='M24 28c-8 0-14 4-14 8v6h28v-6c0-4-6-8-14-8z'/%3E%3Cpath d='M10 28c-4 0-8 2-8 5v5h8v-5c0-2 1-4 3-5-1 0-2 0-3 0z'/%3E%3Cpath d='M38 28c4 0 8 2 8 5v5h-8v-5c0-2-1-4-3-5 1 0 2 0 3 0z'/%3E%3C/svg%3E");
+      background-size: contain;
+      background-repeat: no-repeat;
+    }
+
+    // 图表图标 - 浏览量
+    &--eye {
+      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48' fill='%233a8ee6'%3E%3Crect x='4' y='24' width='8' height='20' rx='2'/%3E%3Crect x='16' y='14' width='8' height='30' rx='2'/%3E%3Crect x='28' y='20' width='8' height='24' rx='2'/%3E%3Crect x='40' y='8' width='8' height='36' rx='2'/%3E%3C/svg%3E");
+      background-size: contain;
+      background-repeat: no-repeat;
+    }
+
+    // 盾牌徽章图标 - 版本
+    &--gear {
+      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48' fill='%23e8a838'%3E%3Cpath d='M24 4L8 10v12c0 11 8 18 16 22 8-4 16-11 16-22V10L24 4z'/%3E%3Cpath d='M20 24l4 4 8-8' stroke='white' stroke-width='3' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      background-size: contain;
+      background-repeat: no-repeat;
+    }
+  }
+
+  // 彩色卡片变体
+  &--green {
+    background: linear-gradient(135deg, #f0fdf9 0%, #fff 100%);
+  }
+
+  &--blue {
+    background: linear-gradient(135deg, #f0f7ff 0%, #fff 100%);
+  }
+
+  &--orange {
+    background: linear-gradient(135deg, #fffbf0 0%, #fff 100%);
+  }
+
+  &__head {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    margin-bottom: 16rpx;
+    position: relative;
+    z-index: 1;
   }
 
   &__label {
-    display: block;
-    font-size: 26rpx;
+    font-size: 24rpx;
+    color: #999;
     font-weight: 500;
-    color: var(--color-text);
   }
 
-  &__value {
-    display: block;
-    margin-top: 8rpx;
-    font-size: 36rpx;
-    font-weight: 600;
-    color: var(--color-text);
+  &__dot {
+    width: 12rpx;
+    height: 12rpx;
+    border-radius: 50%;
+
+    &--green {
+      background: #34d19d;
+      box-shadow: 0 0 10rpx rgba(52, 209, 157, 0.4);
+    }
+
+    &--blue {
+      background: #409eff;
+      box-shadow: 0 0 10rpx rgba(64, 158, 255, 0.4);
+    }
+
+    &--orange {
+      background: #faa21e;
+      box-shadow: 0 0 12rpx rgba(250, 162, 30, 0.4);
+    }
+  }
+
+  &__num {
+    font-size: 48rpx;
+    font-weight: 700;
+    line-height: 1;
+    letter-spacing: -1rpx;
+    position: relative;
+    z-index: 1;
+
+    &--green {
+      color: #2ab789;
+      text-shadow: 0 4rpx 12rpx rgba(42, 183, 137, 0.3);
+    }
+
+    &--blue {
+      color: #3a8ee6;
+      text-shadow: 0 4rpx 12rpx rgba(58, 142, 230, 0.3);
+    }
+
+    &--orange {
+      color: #e8a838;
+      text-shadow: 0 4rpx 12rpx rgba(232, 168, 56, 0.3);
+    }
+  }
+
+  &--full {
+    grid-column: 1 / -1;
+    flex-direction: row;
+    align-items: center;
+    justify-content: space-between;
+    padding: 20rpx 20rpx;
+
+    .stat-card__head {
+      margin-bottom: 0;
+    }
+
+    .stat-card__num {
+      font-size: 28rpx;
+      letter-spacing: 0;
+    }
+
+    .stat-card__bg {
+      width: 50rpx;
+      height: 50rpx;
+      right: 16rpx;
+      bottom: 50%;
+      transform: translateY(50%);
+    }
   }
 }
 
@@ -529,4 +712,17 @@ onReady(() => {
   height: 300px;
   margin-bottom: 40rpx;
 }
+
+:deep(.chart-card) {
+  margin: 0 !important;
+}
+
+:deep(.chart-card .wd-card) {
+  margin: 0 !important;
+  border-radius: 16rpx;
+}
+
+:deep(.chart-card .wd-card__body) {
+  padding: 24rpx !important;
+}
 </style>
diff --git a/src/pages/work/index.vue b/src/pages/work/index.vue
index 9352c04..2a962b7 100644
--- a/src/pages/work/index.vue
+++ b/src/pages/work/index.vue
@@ -23,7 +23,7 @@
 <script lang="ts" setup>
 import { useRouter } from "uni-mini-router";
 import { useUserStore } from "@/store";
-import { workMenuConfig } from "@/constants/work-menu";
+import { menuConfig } from "@/config/menu";
 
 const router = useRouter();
 const userStore = useUserStore();
@@ -39,7 +39,7 @@ const hasPermission = (perm: string) => {
 
 // 根据权限过滤后的菜单列表
 const visibleGridList = computed(() => {
-  return workMenuConfig
+  return menuConfig
     .map((group) => ({
       ...group,
       children: group.children.filter((item) => hasPermission(item.perm)),
diff --git a/src/types/auto-imports.d.ts b/src/types/auto-imports.d.ts
index 185fd1f..e07162d 100644
--- a/src/types/auto-imports.d.ts
+++ b/src/types/auto-imports.d.ts
@@ -10,6 +10,7 @@ declare global {
   const EffectScope: typeof import('vue')['EffectScope']
   const PERM_ALL: typeof import('../utils/permission')['PERM_ALL']
   const ROLE_ROOT: typeof import('../utils/permission')['ROLE_ROOT']
+  const RequestError: typeof import('../utils/request')['RequestError']
   const Storage: typeof import('../utils/storage')['Storage']
   const acceptHMRUpdate: typeof import('pinia')['acceptHMRUpdate']
   const applyThemeOnPageShow: typeof import('../utils/theme')['applyThemeOnPageShow']
@@ -204,6 +205,9 @@ declare global {
   // @ts-ignore
   export type { Component, ComponentPublicInstance, ComputedRef, DirectiveBinding, ExtractDefaultPropTypes, ExtractPropTypes, ExtractPublicPropTypes, InjectionKey, PropType, Ref, MaybeRef, MaybeRefOrGetter, VNode, WritableComputedRef } from 'vue'
   import('vue')
+  // @ts-ignore
+  export type { RequestError } from '../utils/request'
+  import('../utils/request')
 }
 
 // for vue template auto import
@@ -213,6 +217,7 @@ declare module 'vue' {
   interface ComponentCustomProperties {
     readonly CommonUtil: UnwrapRef<typeof import('wot-design-uni')['CommonUtil']>
     readonly EffectScope: UnwrapRef<typeof import('vue')['EffectScope']>
+    readonly RequestError: UnwrapRef<typeof import('../utils/request')['RequestError']>
     readonly Storage: UnwrapRef<typeof import('../utils/storage')['Storage']>
     readonly acceptHMRUpdate: UnwrapRef<typeof import('pinia')['acceptHMRUpdate']>
     readonly auth: UnwrapRef<typeof import('../api/auth')['default']>
diff --git a/src/utils/request.ts b/src/utils/request.ts
index df141f6..a660bbb 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -1,4 +1,21 @@
-import { getAccessToken } from "./auth";
+import { getAccessToken, clearTokens } from "./auth";
+
+/**
+ * 请求错误类
+ */
+export class RequestError extends Error {
+  /** HTTP 状态码 */
+  statusCode: number;
+  /** 业务错误码 */
+  code: number;
+
+  constructor(message: string, statusCode: number, code?: number) {
+    super(message);
+    this.name = "RequestError";
+    this.statusCode = statusCode;
+    this.code = code ?? statusCode;
+  }
+}
 
 // 请求配置
 interface RequestOptions<T = any> {
@@ -8,27 +25,25 @@ interface RequestOptions<T = any> {
   header?: Record<string, string>;
   timeout?: number;
   responseType?: "text" | "arraybuffer";
-  skipAuth?: boolean; // 标记是否跳过认证
+  /** 是否跳过错误提示（如 Toast） */
+  skipErrorToast?: boolean;
 }
 
-// 请求函数
+/**
+ * 请求函数
+ * - 有 token 则自动添加 Authorization 头
+ * - 无 token 则直接发送请求，由后端判断是否需要认证
+ * - 401 时清除 token 并跳转登录页
+ */
 function request<T = any>(options: RequestOptions): Promise<T> {
   return new Promise<T>((resolve, reject) => {
     // 构建请求头
     const header = Object.assign({}, options.header || {});
 
-    // 检查是否需要添加认证令牌
-    if (!options.skipAuth) {
-      const token = getAccessToken();
-      if (token) {
-        header["Authorization"] = `Bearer ${token}`;
-      } else {
-        // 需要认证但没有令牌，跳转到登录页
-        uni.navigateTo({
-          url: "/pages/login/index",
-        });
-        return reject(new Error("请先登录"));
-      }
+    // 有 token 则添加认证头，无 token 则不添加（由后端判断）
+    const token = getAccessToken();
+    if (token) {
+      header["Authorization"] = `Bearer ${token}`;
     }
 
     // 根据平台决定URL前缀
@@ -57,38 +72,36 @@ function request<T = any>(options: RequestOptions): Promise<T> {
         if (res.statusCode >= 200 && res.statusCode < 300) {
           resolve(res.data.data);
         }
-        // 未授权错误
+        // 未授权错误：清除 token 并跳转登录页
         else if (res.statusCode === 401) {
-          // 如果需要认证且未授权，跳转到登录页
-          if (!options.skipAuth) {
-            uni.navigateTo({
-              url: "/pages/login/index",
-            });
-          }
-          reject(new Error(serverMsg || "未授权，请重新登录"));
+          clearTokens();
+          uni.navigateTo({
+            url: "/pages/login/index",
+          });
+          reject(new RequestError(serverMsg || "未授权，请重新登录", 401));
         }
         // 其他错误
         else {
-          const errorMsg = serverMsg || `请求失败: ${res.statusCode}`;
-          reject(new Error(errorMsg));
+          const errorCode = res?.data?.code || res.statusCode;
+          reject(
+            new RequestError(serverMsg || `请求失败: ${res.statusCode}`, res.statusCode, errorCode)
+          );
         }
       },
       fail: (err) => {
-        reject(new Error(err.errMsg || "网络请求失败"));
+        reject(new RequestError(err.errMsg || "网络请求失败", 0));
       },
     });
   });
 }
 
 /**
- * 无需认证的请求
- * @param options 请求配置
+ * 无需认证的请求（兼容旧调用）
+ *
+ * 说明：当前 request 实现不会在“无 token”时阻断请求，认证与否由后端决定。
  */
 export function publicRequest<T = any>(options: RequestOptions): Promise<T> {
-  return request<T>({
-    ...options,
-    skipAuth: true,
-  });
+  return request<T>(options);
 }
 
 export default request;