diff --git a/backend/src/components/CommonHeader.vue b/backend/src/components/CommonHeader.vue
index e9dceb7..68ab38b 100644
--- a/backend/src/components/CommonHeader.vue
+++ b/backend/src/components/CommonHeader.vue
@@ -14,6 +14,9 @@
     </div>
     <!-- 顶级导航：当前模块下的顶级菜单（不是门户里的模块卡片） -->
     <nav class="top-nav">
+      <span v-if="currentModule" class="current-module-label">
+        <span class="module-label-text">{{ currentModule.title }}</span>
+      </span>
       <el-tooltip content="切换模块" placement="bottom">
         <button class="module-switch-btn" title="切换模块" @click="switchModule">
           <el-icon><Grid /></el-icon>
@@ -34,20 +37,31 @@
     </nav>
 
     <div class="header-tools">
-      <!-- 菜单快捷搜索 -->
-      <div class="header-search">
-        <el-input
-          v-model="keyword"
-          placeholder="请输入关键词搜索"
-          clearable
-          @focus="searchOpen = true"
-          @blur="handleSearchBlur"
-          @keyup.enter="handleSearchEnter"
+      <!-- 菜单快捷搜索：按钮触发，输入框向左弹出 -->
+      <div class="header-search-wrap">
+        <div class="header-search" :class="{ 'is-open': searchVisible }">
+          <el-input
+            ref="searchInputRef"
+            v-model="keyword"
+            placeholder="请输入关键词搜索"
+            clearable
+            @focus="searchOpen = true"
+            @blur="handleSearchBlur"
+            @keyup.enter="handleSearchEnter"
+          >
+            <template #prefix>
+              <el-icon><Search /></el-icon>
+            </template>
+          </el-input>
+        </div>
+        <button
+          class="tool-btn search-toggle-btn"
+          :class="{ 'is-active': searchVisible }"
+          title="搜索菜单"
+          @click="toggleSearch"
         >
-          <template #prefix>
-            <el-icon><Search /></el-icon>
-          </template>
-        </el-input>
+          <el-icon><Search /></el-icon>
+        </button>
         <div v-if="searchOpen && keyword.trim()" class="search-results">
           <div v-if="!searchResults.length" class="search-empty">未找到相关菜单</div>
           <div
@@ -170,7 +184,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, reactive, onMounted, onUnmounted } from "vue";
+import { ref, computed, reactive, onMounted, onUnmounted, nextTick } from "vue";
 import { useRouter, useRoute } from "vue-router";
 import { useMenuStore } from "@/stores/menu";
 import { useAllDataStore } from "@/stores";
@@ -220,6 +234,20 @@ let stopSystemThemeWatch = null;
 // 顶部菜单快捷搜索
 const keyword = ref("");
 const searchOpen = ref(false);
+// 搜索面板开合：默认收起为搜索按钮，点击后输入框向左弹出
+const searchVisible = ref(false);
+const searchInputRef = ref();
+
+const toggleSearch = async () => {
+  searchVisible.value = !searchVisible.value;
+  if (searchVisible.value) {
+    await nextTick();
+    searchInputRef.value?.focus();
+  } else {
+    keyword.value = "";
+    searchOpen.value = false;
+  }
+};
 const searchResults = computed(() => {
   const kw = keyword.value.trim().toLowerCase();
   if (!kw) return [];
@@ -265,6 +293,7 @@ const handleSearchSelect = (item) => {
   emit("menu-click", { path: item.path, title: item.title, icon: item.icon || "Grid" });
   keyword.value = "";
   searchOpen.value = false;
+  searchVisible.value = false;
 };
 
 const handleSearchEnter = () => {
@@ -272,9 +301,12 @@ const handleSearchEnter = () => {
 };
 
 const handleSearchBlur = () => {
-  // 延迟关闭，保证结果项的 mousedown 先触发
+  // 延迟关闭，保证结果项的 mousedown 先触发；关键词为空时同时收起搜索面板
   window.setTimeout(() => {
     searchOpen.value = false;
+    if (!keyword.value.trim()) {
+      searchVisible.value = false;
+    }
   }, 150);
 };
 
@@ -968,6 +1000,27 @@ onUnmounted(() => {
   gap: 0;
 }
 
+.current-module-label {
+  display: inline-flex;
+  align-items: center;
+  flex: 0 0 auto;
+  height: 32px;
+  margin-right: 8px;
+  padding: 0 12px;
+  border-radius: 8px;
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--yz-primary);
+  background: var(--yz-primary-soft);
+  white-space: nowrap;
+
+  .module-label-text {
+    overflow: hidden;
+    text-overflow: ellipsis;
+    max-width: 140px;
+  }
+}
+
 .module-switch-btn {
   display: inline-flex;
   align-items: center;
@@ -1159,10 +1212,25 @@ onUnmounted(() => {
   flex: 0 0 auto;
 }
 
-.header-search {
+.header-search-wrap {
   position: relative;
-  width: 200px;
+  display: flex;
+  align-items: center;
   flex: 0 0 auto;
+}
+
+.header-search {
+  width: 0;
+  flex: 0 0 auto;
+  overflow: hidden;
+  visibility: hidden;
+  transition: width 0.25s ease, visibility 0s linear 0.25s;
+
+  &.is-open {
+    width: 200px;
+    visibility: visible;
+    transition: width 0.25s ease;
+  }
 
   :deep(.el-input__wrapper) {
     padding: 0 12px;
@@ -1185,6 +1253,14 @@ onUnmounted(() => {
   }
 }
 
+.search-toggle-btn {
+  &.is-active {
+    color: var(--yz-primary);
+    background: var(--yz-primary-soft);
+    border-color: var(--el-color-primary-light-7);
+  }
+}
+
 .search-results {
   position: absolute;
   top: calc(100% + 8px);
@@ -1358,7 +1434,7 @@ onUnmounted(() => {
 }
 
 @media (max-width: 1280px) {
-  .header-search {
+  .header-search.is-open {
     width: 160px;
   }
 
@@ -1368,7 +1444,7 @@ onUnmounted(() => {
 }
 
 @media (max-width: 1080px) {
-  .header-search {
+  .header-search-wrap {
     display: none;
   }
 }
diff --git a/backend/src/components/approval/FlowCanvas.vue b/backend/src/components/approval/FlowCanvas.vue
index 95fcd32..c423d1e 100644
--- a/backend/src/components/approval/FlowCanvas.vue
+++ b/backend/src/components/approval/FlowCanvas.vue
@@ -636,7 +636,7 @@ defineExpose({ serialize, fitView })
 .flow-canvas {
   display: flex;
   height: 560px;
-  border: 1px solid #e4e7ed;
+  border: 1px solid var(--el-border-color);
   border-radius: 8px;
   overflow: hidden;
 }
@@ -645,8 +645,8 @@ defineExpose({ serialize, fitView })
   width: 220px;
   flex: 0 0 220px;
   padding: 14px;
-  background: #fafbfc;
-  border-right: 1px solid #e4e7ed;
+  background: var(--el-fill-color-lighter);
+  border-right: 1px solid var(--el-border-color-lighter);
   overflow-y: auto;
 
   .palette-title {
@@ -655,7 +655,7 @@ defineExpose({ serialize, fitView })
     font-weight: 600;
     margin-bottom: 12px;
     font-size: 14px;
-    color: #303133;
+    color: var(--el-text-color-primary);
     letter-spacing: 0.5px;
 
     &::before {
@@ -663,7 +663,7 @@ defineExpose({ serialize, fitView })
       display: inline-block;
       width: 3px;
       height: 14px;
-      background: #409eff;
+      background: var(--el-color-primary);
       border-radius: 2px;
       margin-right: 8px;
     }
@@ -682,16 +682,16 @@ defineExpose({ serialize, fitView })
     padding: 12px 14px;
     min-height: 48px;
     border-radius: 8px;
-    border: 1px solid #dcdfe6;
-    background: #fff;
+    border: 1px solid var(--el-border-color);
+    background: var(--el-bg-color);
     cursor: grab;
     font-size: 13px;
     user-select: none;
     transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
 
     &:hover {
-      border-color: #409eff;
-      background: #f5faff;
+      border-color: var(--el-color-primary);
+      background: var(--el-color-primary-light-9);
       box-shadow: 0 3px 10px rgba(64, 158, 255, 0.15);
       transform: translateY(-1px);
     }
@@ -762,13 +762,13 @@ defineExpose({ serialize, fitView })
 
     .pal-label {
       font-weight: 600;
-      color: #303133;
+      color: var(--el-text-color-primary);
       font-size: 13.5px;
       line-height: 1.3;
     }
 
     .pal-desc {
-      color: #909399;
+      color: var(--el-text-color-secondary);
       font-size: 11.5px;
       line-height: 1.3;
       overflow: hidden;
@@ -787,7 +787,7 @@ defineExpose({ serialize, fitView })
     margin-top: 14px;
     padding: 10px 12px;
     font-size: 11.5px;
-    color: #909399;
+    color: var(--el-text-color-secondary);
     line-height: 1.7;
     background: rgba(64, 158, 255, 0.05);
     border: 1px dashed rgba(64, 158, 255, 0.2);
@@ -798,15 +798,15 @@ defineExpose({ serialize, fitView })
 .canvas-wrap {
   flex: 1;
   position: relative;
-  background: #f7f8fb;
+  background: var(--el-fill-color-lighter);
 }
 
 .fn {
   min-width: 150px;
   padding: 8px 12px;
   border-radius: 8px;
-  background: #fff;
-  border: 1px solid #dcdfe6;
+  background: var(--el-bg-color-overlay);
+  border: 1px solid var(--el-border-color);
   box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
   font-size: 13px;
 
@@ -821,12 +821,12 @@ defineExpose({ serialize, fitView })
 
   .fn-title {
     font-weight: 600;
-    color: #303133;
+    color: var(--el-text-color-primary);
   }
 
   .fn-sub {
     margin-top: 2px;
-    color: #909399;
+    color: var(--el-text-color-secondary);
     font-size: 12px;
     max-width: 180px;
     overflow: hidden;
@@ -847,26 +847,26 @@ defineExpose({ serialize, fitView })
   min-width: 90px;
   padding: 8px 16px;
   border-radius: 999px;
-  background: #fff;
-  border: 1px solid #dcdfe6;
+  background: var(--el-bg-color-overlay);
+  border: 1px solid var(--el-border-color);
   box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
   font-size: 13px;
   font-weight: 600;
-  color: #303133;
+  color: var(--el-text-color-primary);
 
   .fn-pill-icon {
     font-size: 15px;
   }
 }
 .fn-pill-start {
-  border-color: #67c23a;
-  color: #529b2e;
-  background: #f0f9eb;
+  border-color: var(--el-color-success);
+  color: var(--el-color-success);
+  background: var(--el-color-success-light-9);
 }
 .fn-pill-end {
-  border-color: #909399;
-  color: #73767a;
-  background: #f4f4f5;
+  border-color: var(--el-border-color);
+  color: var(--el-text-color-secondary);
+  background: var(--el-fill-color-light);
 }
 
 // 判断节点：菱形
@@ -882,8 +882,8 @@ defineExpose({ serialize, fitView })
     position: absolute;
     inset: 18px;
     transform: rotate(45deg);
-    background: #fdf6ec;
-    border: 2px solid #e6a23c;
+    background: var(--el-color-warning-light-9);
+    border: 2px solid var(--el-color-warning);
     border-radius: 8px;
     box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
   }
@@ -893,7 +893,7 @@ defineExpose({ serialize, fitView })
     z-index: 1;
     font-size: 12px;
     font-weight: 600;
-    color: #b88230;
+    color: var(--el-color-warning);
     text-align: center;
     max-width: 80px;
     overflow: hidden;
@@ -916,14 +916,14 @@ defineExpose({ serialize, fitView })
   font-size: 12px;
   font-weight: 600;
   text-align: center;
-  background: #fff;
+  background: var(--el-bg-color-overlay);
   border: 2px solid transparent;
   box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
 }
 .fn-circle-notify {
-  border-color: #d3adf7;
-  background: #f9f0ff;
-  color: #531dab;
+  border-color: var(--el-color-primary-light-5);
+  background: var(--el-color-primary-light-9);
+  color: var(--el-color-primary);
 }
 .fn-circle-icon {
   font-size: 16px;
@@ -938,7 +938,7 @@ defineExpose({ serialize, fitView })
 
 .hint {
   font-size: 12px;
-  color: #909399;
+  color: var(--el-text-color-secondary);
 }
 </style>
 
@@ -946,13 +946,13 @@ defineExpose({ serialize, fitView })
 /* 多人方式问号图标 + 气泡内容：因 el-dialog / el-tooltip 均 append-to-body，需非 scoped 样式 */
 .el-radio .mode-tip-icon {
   margin-left: 4px;
-  color: #909399;
+  color: var(--el-text-color-secondary);
   cursor: help;
   vertical-align: -2px;
   transition: color 0.2s;
 }
 .el-radio .mode-tip-icon:hover {
-  color: #409eff;
+  color: var(--el-color-primary);
 }
 .el-popper.is-dark .mode-tip {
   font-size: 12px;
diff --git a/backend/src/views/404/404.vue b/backend/src/views/404/404.vue
index bbab10e..f04cbfc 100644
--- a/backend/src/views/404/404.vue
+++ b/backend/src/views/404/404.vue
@@ -4,15 +4,21 @@
       <div class="not-found-big">404</div>
       <div class="not-found-message">页面未找到</div>
       <div class="not-found-desc">很抱歉，您访问的页面不存在或已被删除。</div>
-      <a href="javascript:void(0)" class="back-home-btn" @click.prevent="backToHome">
-        返回首页
-      </a>
+      <div class="action-btns">
+        <a href="javascript:void(0)" class="back-home-btn" @click.prevent="backToHome">
+          返回首页
+        </a>
+        <a href="javascript:void(0)" class="clear-cache-btn" @click.prevent="clearCache">
+          清除缓存
+        </a>
+      </div>
     </div>
   </div>
 </template>
 
 <script lang="ts" setup>
 import { useRouter } from "vue-router";
+import { ElMessage, ElMessageBox } from "element-plus";
 
 const router = useRouter();
 
@@ -20,6 +26,34 @@ const backToHome = () => {
   // 使用 /home 作为首页（Hash模式下的系统导航页）
   router.push("/home");
 };
+
+const clearAllCookies = () => {
+  const cookies = document.cookie ? document.cookie.split(";") : [];
+  for (const cookie of cookies) {
+    const eqPos = cookie.indexOf("=");
+    const name = eqPos > -1 ? cookie.slice(0, eqPos).trim() : cookie.trim();
+    if (!name) continue;
+    document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/`;
+    document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;domain=${location.hostname}`;
+  }
+};
+
+const clearCache = async () => {
+  try {
+    await ElMessageBox.confirm("确定要清除本地缓存和 Cookie 吗？", "提示", {
+      confirmButtonText: "确定",
+      cancelButtonText: "取消",
+      type: "warning",
+    });
+    localStorage.clear();
+    sessionStorage.clear();
+    clearAllCookies();
+    ElMessage.success("缓存已清除");
+    window.location.reload();
+  } catch {
+    // 用户取消，不做任何操作
+  }
+};
 </script>
 
 <style scoped>
@@ -63,6 +97,12 @@ const backToHome = () => {
   margin-bottom: 28px;
 }
 
+.action-btns {
+  display: flex;
+  gap: 12px;
+  justify-content: center;
+}
+
 .back-home-btn {
   display: inline-block;
   background: linear-gradient(90deg, #6a82fb 0%, #fc5c7d 100%);
@@ -80,6 +120,23 @@ const backToHome = () => {
   background: linear-gradient(-90deg, #6a82fb 0%, #fc5c7d 100%);
 }
 
+.clear-cache-btn {
+  display: inline-block;
+  background: #fff;
+  color: #fc5c7d;
+  padding: 10px 36px;
+  border-radius: 24px;
+  font-size: 16px;
+  text-decoration: none;
+  font-weight: 500;
+  border: 1px solid #fc5c7d;
+  transition: background 0.2s;
+}
+
+.clear-cache-btn:hover {
+  background: #fff0f3;
+}
+
 @keyframes float-in {
   0% {
     transform: translateY(30px) scale(0.97);
diff --git a/backend/src/views/dashboard/index.vue b/backend/src/views/dashboard/index.vue
index df71b26..10c7e26 100644
--- a/backend/src/views/dashboard/index.vue
+++ b/backend/src/views/dashboard/index.vue
@@ -541,6 +541,23 @@ onUnmounted(() => {
     gap: 8px;
     flex-shrink: 0;
   }
+
+  // 暗色主题：亮蓝渐变在深色底上过于刺眼，改为深色底 + 主色淡染
+  html.dark & {
+    background:
+      linear-gradient(135deg, rgba(64, 128, 255, 0.28) 0%, rgba(64, 128, 255, 0.1) 100%),
+      var(--el-bg-color);
+    border: 1px solid rgba(64, 128, 255, 0.3);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
+
+    .welcome-title {
+      color: var(--el-text-color-primary);
+    }
+
+    .welcome-subtitle {
+      color: var(--el-text-color-secondary);
+    }
+  }
 }
 
 // 统计周期切换条
diff --git a/backend/src/views/system/approval/index.vue b/backend/src/views/system/approval/index.vue
index 457d0ea..bd6b777 100644
--- a/backend/src/views/system/approval/index.vue
+++ b/backend/src/views/system/approval/index.vue
@@ -352,12 +352,12 @@ onMounted(() => {
     border: 1px solid transparent;
 
     &:hover {
-      background: #f5f7fa;
+      background: var(--el-fill-color-light);
     }
 
     &.active {
-      background: #ecf5ff;
-      border-color: #b3d8ff;
+      background: var(--el-color-primary-light-9);
+      border-color: var(--el-color-primary-light-7);
     }
 
     .flow-name {
@@ -365,13 +365,13 @@ onMounted(() => {
       align-items: center;
       gap: 6px;
       font-size: 14px;
-      color: #303133;
+      color: var(--el-text-color-primary);
     }
 
     .flow-code {
       margin-top: 2px;
       font-size: 12px;
-      color: #409eff;
+      color: var(--el-color-primary);
       font-family: Menlo, Consolas, monospace;
     }
 
@@ -381,7 +381,7 @@ onMounted(() => {
       align-items: center;
       margin-top: 4px;
       font-size: 12px;
-      color: #909399;
+      color: var(--el-text-color-secondary);
     }
   }
 }
@@ -390,7 +390,7 @@ onMounted(() => {
   .hint {
     margin-left: 10px;
     font-size: 12px;
-    color: #909399;
+    color: var(--el-text-color-secondary);
   }
 }
 
diff --git a/backend/src/views/tools/passwordStore/index.vue b/backend/src/views/tools/passwordStore/index.vue
index 4e98958..4d62c01 100644
--- a/backend/src/views/tools/passwordStore/index.vue
+++ b/backend/src/views/tools/passwordStore/index.vue
@@ -938,7 +938,7 @@ onMounted(load)
 /* 展开行样式 */
 .expanded-account-box {
   padding: 12px 18px;
-  background-color: #f8fafc;
+  background-color: var(--el-fill-color-light);
   border-radius: 6px;
   margin: 6px 0;
 }
@@ -972,7 +972,7 @@ onMounted(load)
 }
 
 .account-card {
-  background: #ffffff;
+  background: var(--el-bg-color);
   border: 1px solid var(--el-border-color-lighter);
   border-radius: 6px;
   padding: 12px;
@@ -1079,7 +1079,7 @@ onMounted(load)
 }
 
 .account-edit-card {
-  background: #f8fafc;
+  background: var(--el-fill-color-light);
   border: 1px solid var(--el-border-color);
   border-radius: 6px;
   padding: 12px 14px 4px 14px;
@@ -1121,7 +1121,7 @@ onMounted(load)
 }
 
 .detail-info-card {
-  background: #f8fafc;
+  background: var(--el-fill-color-light);
   border-radius: 6px;
   padding: 12px 16px;
   display: flex;
@@ -1167,7 +1167,7 @@ onMounted(load)
   border: 1px solid var(--el-border-color-lighter);
   border-radius: 6px;
   padding: 12px;
-  background: #ffffff;
+  background: var(--el-bg-color);
 }
 
 .detail-acc-head {
diff --git a/go/controllers/backend_operation_log.go b/go/controllers/backend_operation_log.go
index 4e4aef0..8c71651 100644
--- a/go/controllers/backend_operation_log.go
+++ b/go/controllers/backend_operation_log.go
@@ -124,9 +124,10 @@ func (c *BackendOperationLogController) List() {
 		return
 	}
 
+	userResolver := services.NewOperationLogUserResolver()
 	list := make([]map[string]interface{}, 0, len(rows))
 	for i := range rows {
-		userAccount, userName := services.OperationLogUser(rows[i].Tid, rows[i].UserID)
+		userAccount, userName := userResolver.Resolve(rows[i].Tid, rows[i].UserID)
 		item := map[string]interface{}{
 			"id":             rows[i].ID,
 			"tid":            rows[i].Tid,
diff --git a/go/controllers/platform_operation_log.go b/go/controllers/platform_operation_log.go
index 29ec9df..ab28366 100644
--- a/go/controllers/platform_operation_log.go
+++ b/go/controllers/platform_operation_log.go
@@ -119,9 +119,10 @@ func (c *PlatformOperationLogController) List() {
 		return
 	}
 
+	userResolver := services.NewOperationLogUserResolver()
 	list := make([]map[string]interface{}, 0, len(rows))
 	for i := range rows {
-		userAccount, userName := services.OperationLogUser(rows[i].Tid, rows[i].UserID)
+		userAccount, userName := userResolver.Resolve(rows[i].Tid, rows[i].UserID)
 		item := map[string]interface{}{
 			"id":             rows[i].ID,
 			"tid":            rows[i].Tid,
diff --git a/go/services/operation_log_user.go b/go/services/operation_log_user.go
index 1dd366c..f8ce6aa 100644
--- a/go/services/operation_log_user.go
+++ b/go/services/operation_log_user.go
@@ -37,3 +37,33 @@ func OperationLogUser(tid *uint64, userID uint64) (account, name string) {
 	}
 	return account, name
 }
+
+type operationLogUserKey struct {
+	tid uint64
+	uid uint64
+}
+
+// OperationLogUserResolver 请求级缓存的操作人解析器。
+// 日志列表逐行调用 OperationLogUser 时，同一 (tid,userID) 会重复执行
+// FindLegacyUID + 用户表查询（N+1），用它按键去重后每个用户只查一次。
+type OperationLogUserResolver struct {
+	cache map[operationLogUserKey][2]string
+}
+
+func NewOperationLogUserResolver() *OperationLogUserResolver {
+	return &OperationLogUserResolver{cache: make(map[operationLogUserKey][2]string)}
+}
+
+func (r *OperationLogUserResolver) Resolve(tid *uint64, userID uint64) (account, name string) {
+	var tidVal uint64
+	if tid != nil {
+		tidVal = *tid
+	}
+	key := operationLogUserKey{tid: tidVal, uid: userID}
+	if v, ok := r.cache[key]; ok {
+		return v[0], v[1]
+	}
+	account, name = OperationLogUser(tid, userID)
+	r.cache[key] = [2]string{account, name}
+	return account, name
+}
diff --git a/go/services/reminder_scheduler.go b/go/services/reminder_scheduler.go
index 3ec7048..1ada761 100644
--- a/go/services/reminder_scheduler.go
+++ b/go/services/reminder_scheduler.go
@@ -436,16 +436,23 @@ func scanAndSendReminders() {
 	for i := range list {
 		reminder := &list[i]
 
-		// 3.1 获取日程信息（主要拿 Content，Title 统一为 "日程提醒"）
+		// 3.1 获取日程信息；消息内容统一拼接为【标题】内容，内容为空时用兜底文案，保证永远有提示内容
 		var schedule models.BackendSchedule
 		err := models.Orm.QueryTable(new(models.BackendSchedule)).
 			Filter("id", reminder.ScheduleID).
 			One(&schedule)
 		title := "日程提醒"
-		content := "您有一个待处理的日程时间已到，请注意查收。"
+		body := ""
 		if err == nil {
-			content = schedule.Content
+			if t := strings.TrimSpace(schedule.Title); t != "" {
+				title = t
+			}
+			body = strings.TrimSpace(schedule.Content)
 		}
+		if body == "" {
+			body = "您有一个待处理的日程时间已到，请注意查收。"
+		}
+		content := fmt.Sprintf("【%s】%s", title, body)
 
 		sender, ok := senders[reminder.RemindChannel]
 		if !ok {
diff --git a/platform/src/views/404/404.vue b/platform/src/views/404/404.vue
index bbab10e..f04cbfc 100644
--- a/platform/src/views/404/404.vue
+++ b/platform/src/views/404/404.vue
@@ -4,15 +4,21 @@
       <div class="not-found-big">404</div>
       <div class="not-found-message">页面未找到</div>
       <div class="not-found-desc">很抱歉，您访问的页面不存在或已被删除。</div>
-      <a href="javascript:void(0)" class="back-home-btn" @click.prevent="backToHome">
-        返回首页
-      </a>
+      <div class="action-btns">
+        <a href="javascript:void(0)" class="back-home-btn" @click.prevent="backToHome">
+          返回首页
+        </a>
+        <a href="javascript:void(0)" class="clear-cache-btn" @click.prevent="clearCache">
+          清除缓存
+        </a>
+      </div>
     </div>
   </div>
 </template>
 
 <script lang="ts" setup>
 import { useRouter } from "vue-router";
+import { ElMessage, ElMessageBox } from "element-plus";
 
 const router = useRouter();
 
@@ -20,6 +26,34 @@ const backToHome = () => {
   // 使用 /home 作为首页（Hash模式下的系统导航页）
   router.push("/home");
 };
+
+const clearAllCookies = () => {
+  const cookies = document.cookie ? document.cookie.split(";") : [];
+  for (const cookie of cookies) {
+    const eqPos = cookie.indexOf("=");
+    const name = eqPos > -1 ? cookie.slice(0, eqPos).trim() : cookie.trim();
+    if (!name) continue;
+    document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/`;
+    document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;domain=${location.hostname}`;
+  }
+};
+
+const clearCache = async () => {
+  try {
+    await ElMessageBox.confirm("确定要清除本地缓存和 Cookie 吗？", "提示", {
+      confirmButtonText: "确定",
+      cancelButtonText: "取消",
+      type: "warning",
+    });
+    localStorage.clear();
+    sessionStorage.clear();
+    clearAllCookies();
+    ElMessage.success("缓存已清除");
+    window.location.reload();
+  } catch {
+    // 用户取消，不做任何操作
+  }
+};
 </script>
 
 <style scoped>
@@ -63,6 +97,12 @@ const backToHome = () => {
   margin-bottom: 28px;
 }
 
+.action-btns {
+  display: flex;
+  gap: 12px;
+  justify-content: center;
+}
+
 .back-home-btn {
   display: inline-block;
   background: linear-gradient(90deg, #6a82fb 0%, #fc5c7d 100%);
@@ -80,6 +120,23 @@ const backToHome = () => {
   background: linear-gradient(-90deg, #6a82fb 0%, #fc5c7d 100%);
 }
 
+.clear-cache-btn {
+  display: inline-block;
+  background: #fff;
+  color: #fc5c7d;
+  padding: 10px 36px;
+  border-radius: 24px;
+  font-size: 16px;
+  text-decoration: none;
+  font-weight: 500;
+  border: 1px solid #fc5c7d;
+  transition: background 0.2s;
+}
+
+.clear-cache-btn:hover {
+  background: #fff0f3;
+}
+
 @keyframes float-in {
   0% {
     transform: translateY(30px) scale(0.97);
diff --git a/platform/src/views/tools/passwordStore/index.vue b/platform/src/views/tools/passwordStore/index.vue
index fc8b837..ca2c25e 100644
--- a/platform/src/views/tools/passwordStore/index.vue
+++ b/platform/src/views/tools/passwordStore/index.vue
@@ -948,7 +948,7 @@ onMounted(load)
 /* 展开行样式 */
 .expanded-account-box {
   padding: 12px 18px;
-  background-color: #f8fafc;
+  background-color: var(--el-fill-color-light);
   border-radius: 6px;
   margin: 6px 0;
 }
@@ -982,7 +982,7 @@ onMounted(load)
 }
 
 .account-card {
-  background: #ffffff;
+  background: var(--el-bg-color);
   border: 1px solid var(--el-border-color-lighter);
   border-radius: 6px;
   padding: 12px;
@@ -1089,7 +1089,7 @@ onMounted(load)
 }
 
 .account-edit-card {
-  background: #f8fafc;
+  background: var(--el-fill-color-light);
   border: 1px solid var(--el-border-color);
   border-radius: 6px;
   padding: 12px 14px 4px 14px;
@@ -1131,7 +1131,7 @@ onMounted(load)
 }
 
 .detail-info-card {
-  background: #f8fafc;
+  background: var(--el-fill-color-light);
   border-radius: 6px;
   padding: 12px 16px;
   display: flex;
@@ -1177,7 +1177,7 @@ onMounted(load)
   border: 1px solid var(--el-border-color-lighter);
   border-radius: 6px;
   padding: 12px;
-  background: #ffffff;
+  background: var(--el-bg-color);
 }
 
 .detail-acc-head {