diff --git a/backend/src/views/apps/oa/dashboard/index.vue b/backend/src/views/apps/oa/dashboard/index.vue
index 45a566b..17e1570 100644
--- a/backend/src/views/apps/oa/dashboard/index.vue
+++ b/backend/src/views/apps/oa/dashboard/index.vue
@@ -136,19 +136,14 @@
               >查看全部</el-button
             >
           </div>
-          <el-tabs v-model="scheduleTab" class="schedule-tabs">
+          <el-tabs v-model="scheduleRange" class="schedule-tabs">
             <el-tab-pane
-              v-for="tab in scheduleTabs"
+              v-for="tab in scheduleRanges"
               :key="tab.value"
               :name="tab.value"
             >
               <template #label>
-                <span class="tab-label">
-                  {{ tab.label }}
-                  <span class="tab-count">{{
-                    scheduleCounts[tab.value] || 0
-                  }}</span>
-                </span>
+                <span class="tab-label">{{ tab.label }}</span>
               </template>
             </el-tab-pane>
           </el-tabs>
@@ -203,9 +198,9 @@
             <el-empty
               v-if="!filteredScheduleReminders.length && !scheduleLoading"
               :description="
-                scheduleTab === 'all'
-                  ? '近期暂无日程安排'
-                  : '该分类下暂无日程'
+                scheduleRange === 'today'
+                  ? '今日暂无日程安排'
+                  : '该时间范围内暂无日程'
               "
               :image-size="60"
             />
@@ -263,7 +258,7 @@
 </template>
 
 <script setup>
-import { computed, onBeforeUnmount, onMounted, reactive, ref } from "vue";
+import { computed, onBeforeUnmount, onMounted, reactive, ref, watch } from "vue";
 import { useRouter } from "vue-router";
 import { ElMessage } from "element-plus";
 import * as echarts from "echarts";
@@ -376,67 +371,74 @@ const router = useRouter();
 const scheduleReminders = ref([]);
 const scheduleLoading = ref(false);
 
-// 待办分类：all-全部 today-今日 pending-未完成 done-已完成
-// 注：matchScheduleCategory 仍保留 ongoing 分支（进行中 = 跨天延期中的任务），
-// 当前不启用；以后要恢复，在下面数组里加一行 { value: "ongoing", label: "进行中" } 即可。
-const scheduleTabs = [
-  { value: "all", label: "全部" },
+// 时间范围筛选：今日（默认）/ 本周 / 本月 / 本季度 / 本年
+const scheduleRanges = [
   { value: "today", label: "今日" },
-  { value: "pending", label: "未完成" },
-  { value: "done", label: "已完成" },
+  { value: "week", label: "本周" },
+  { value: "month", label: "本月" },
+  { value: "quarter", label: "本季度" },
+  { value: "year", label: "本年" },
 ];
-const scheduleTab = ref("all");
-
-// 判断一条日程是否属于某个分类（与后端 category 语义保持一致）
-const matchScheduleCategory = (item, category) => {
-  switch (category) {
-    case "today":
-      return item.schedule_date === fmtDate(new Date());
-    case "pending":
-      return item.status === 0;
-    // 进行中 = 跨天顺延中的任务：被顺延出去的源日程，或顺延出来的续做日程
-    case "ongoing":
-      return item.source_id > 0 || item.carry_over === 1;
-    case "done":
-      return item.status === 1;
-    default:
-      return true;
-  }
-};
-
-const filteredScheduleReminders = computed(() =>
-  scheduleReminders.value.filter((item) =>
-    matchScheduleCategory(item, scheduleTab.value),
-  ),
-);
-
-// 各分类数量按当前面板范围（逾期 + 未来7天）统计
-const scheduleCounts = computed(() => {
-  const result = {};
-  for (const tab of scheduleTabs) {
-    result[tab.value] = scheduleReminders.value.filter((item) =>
-      matchScheduleCategory(item, tab.value),
-    ).length;
-  }
-  return result;
-});
+const scheduleRange = ref("today");
 
 const pad2 = (n) => String(n).padStart(2, "0");
 const fmtDate = (d) =>
   `${d.getFullYear()}-${pad2(d.getMonth() + 1)}-${pad2(d.getDate())}`;
 
-// 拉取逾期 + 未来7天日程（均含已完成，完成后灰显沉底而非从列表消失）
-const loadScheduleReminders = async () => {
+// 计算指定时间范围的起止日期（含本周一 ~ 周日、季度首末月等）
+const rangeDates = (range) => {
+  const now = new Date();
+  const today = fmtDate(now);
+  if (range === "today") {
+    return { start: today, end: today };
+  }
+  if (range === "week") {
+    // 周一为一周起点
+    const weekday = now.getDay() || 7;
+    const start = new Date(
+      now.getFullYear(),
+      now.getMonth(),
+      now.getDate() - (weekday - 1),
+    );
+    const end = new Date(
+      now.getFullYear(),
+      now.getMonth(),
+      now.getDate() + (7 - weekday),
+    );
+    return { start: fmtDate(start), end: fmtDate(end) };
+  }
+  if (range === "month") {
+    const start = new Date(now.getFullYear(), now.getMonth(), 1);
+    const end = new Date(now.getFullYear(), now.getMonth() + 1, 0);
+    return { start: fmtDate(start), end: fmtDate(end) };
+  }
+  if (range === "quarter") {
+    const q = Math.floor(now.getMonth() / 3);
+    const start = new Date(now.getFullYear(), q * 3, 1);
+    const end = new Date(now.getFullYear(), q * 3 + 3, 0);
+    return { start: fmtDate(start), end: fmtDate(end) };
+  }
+  // year
+  const start = new Date(now.getFullYear(), 0, 1);
+  const end = new Date(now.getFullYear(), 11, 31);
+  return { start: fmtDate(start), end: fmtDate(end) };
+};
+
+// 列表直接展示按所选时间范围拉取的数据（已完成灰显沉底）
+const filteredScheduleReminders = computed(() => scheduleReminders.value);
+
+// 切换时间范围时重新拉取对应区间的日程
+watch(scheduleRange, () => loadScheduleReminders());
+
+// 按所选时间范围拉取日程（含已完成，完成后灰显沉底而非从列表消失）
+const loadScheduleReminders = async (range) => {
+  const r = range || scheduleRange.value;
   scheduleLoading.value = true;
   try {
-    const today = new Date();
-    const weekLater = new Date(
-      today.getFullYear(),
-      today.getMonth(),
-      today.getDate() + 7,
-    );
+    const { start, end } = rangeDates(r);
     const res = await getScheduleList({
-      end_date: fmtDate(weekLater),
+      start_date: start,
+      end_date: end,
       page: 1,
       pageSize: 500,
     });
diff --git a/backend/src/views/apps/oa/schedule/components/detail.vue b/backend/src/views/apps/oa/schedule/components/detail.vue
index b60ffa0..95bae38 100644
--- a/backend/src/views/apps/oa/schedule/components/detail.vue
+++ b/backend/src/views/apps/oa/schedule/components/detail.vue
@@ -336,9 +336,10 @@ const remarkDirty = computed(
 
 watch(
   () => props.schedule,
-  schedule => {
-    // 未编辑备注时跟随日程内容回显，避免覆盖用户正在输入的未保存内容
-    if (!remarkDirty.value) {
+  (schedule, prev) => {
+    // 切换到不同日程时强制以新日程内容回显，避免上一个日程的备注串到当前日程；
+    // 同一日程刷新时仅在不脏（无未保存编辑）时回显，避免覆盖正在输入的备注
+    if (!prev || prev.id !== schedule?.id || !remarkDirty.value) {
       remarkText.value = schedule?.content || "";
     }
     imageList.value = parseImages(schedule?.images);
diff --git a/backend/src/views/apps/oa/schedule/index.vue b/backend/src/views/apps/oa/schedule/index.vue
index 8625036..19a1d86 100644
--- a/backend/src/views/apps/oa/schedule/index.vue
+++ b/backend/src/views/apps/oa/schedule/index.vue
@@ -18,21 +18,32 @@
     <div class="stats-row">
       <div class="stat-card">
         <div class="stat-label">今日待办</div>
-        <div class="stat-value">{{ stats.today_total || 0 }}</div>
-        <div class="stat-sub">已完成 {{ stats.today_done || 0 }}</div>
+        <div class="stat-value is-green">{{ todayPending }}</div>
+        <div class="stat-sub">
+          共 {{ stats.today_total || 0 }} 项 · 已完成
+          {{ stats.today_done || 0 }}
+        </div>
       </div>
       <div class="stat-card">
         <div class="stat-label">本周日程</div>
-        <div class="stat-value">{{ stats.week_total || 0 }}</div>
+        <div class="stat-value is-blue">{{ weekPending }}</div>
+        <div class="stat-sub">
+          共 {{ stats.week_total || 0 }} 项 · 已完成
+          {{ stats.week_done || 0 }}
+        </div>
       </div>
       <div class="stat-card">
         <div class="stat-label">本月日程</div>
-        <div class="stat-value">{{ stats.month_total || 0 }}</div>
-        <div class="stat-sub">已完成 {{ stats.month_done || 0 }}</div>
+        <div class="stat-value is-orange">{{ monthPending }}</div>
+        <div class="stat-sub">
+          共 {{ stats.month_total || 0 }} 项 · 已完成
+          {{ stats.month_done || 0 }}
+        </div>
       </div>
       <div class="stat-card" :class="{ danger: (stats.overdue || 0) > 0 }">
         <div class="stat-label">逾期未完成</div>
-        <div class="stat-value">{{ stats.overdue || 0 }}</div>
+        <div class="stat-value is-red">{{ stats.overdue || 0 }}</div>
+        <div class="stat-sub">项待处理</div>
       </div>
     </div>
 
@@ -406,6 +417,18 @@ import {
 const viewMode = ref("calendar");
 const stats = ref({});
 
+// 今日剩余待办（未完成）= 今日总任务 - 今日已完成
+const todayPending = computed(
+  () => (stats.value.today_total || 0) - (stats.value.today_done || 0)
+);
+// 本周 / 本月剩余未完成数量
+const weekPending = computed(
+  () => (stats.value.week_total || 0) - (stats.value.week_done || 0)
+);
+const monthPending = computed(
+  () => (stats.value.month_total || 0) - (stats.value.month_done || 0)
+);
+
 // ---------- 待办分类 tabs ----------
 // all-全部 today-今日 pending-未完成 done-已完成
 // 注：后端仍支持 ongoing（进行中 = 跨天延期中的任务），当前不启用；
@@ -829,6 +852,21 @@ function reloadAll() {
   return Promise.all(tasks);
 }
 
+// 数据刷新后用最新对象回同步 detailItem，避免备注保存 / 图片变更后
+// detailItem 仍指向旧对象（其 content 未更新），导致编辑时回显旧内容
+watch([calendarItems, listData], () => {
+  if (!detailVisible.value || !detailItem.value) {
+    return;
+  }
+  const id = detailItem.value.id;
+  const fresh =
+    calendarItems.value.find(i => i.id === id) ||
+    listData.value.find(i => i.id === id);
+  if (fresh) {
+    detailItem.value = fresh;
+  }
+});
+
 // ---------- 展示辅助 ----------
 // YYYY-MM-DD -> M月D日，用于"已顺延至"标签
 function shortDate(value) {
@@ -968,6 +1006,17 @@ onMounted(() => {
   margin: 4px 0 2px;
 }
 
+/* 统计卡片大数字按分类配色：今日绿 / 本周蓝 / 本月橙 / 逾期红 */
+.stat-value.is-green {
+  color: #67c23a;
+}
+.stat-value.is-blue {
+  color: #409eff;
+}
+.stat-value.is-orange {
+  color: #e6a23c;
+}
+.stat-value.is-red,
 .stat-card.danger .stat-value {
   color: #f56c6c;
 }
diff --git a/go/controllers/backend_oa_schedule.go b/go/controllers/backend_oa_schedule.go
index 028f530..b337c7c 100644
--- a/go/controllers/backend_oa_schedule.go
+++ b/go/controllers/backend_oa_schedule.go
@@ -275,6 +275,7 @@ func (c *BackendOaScheduleController) Stats() {
 	todayTotal, _ := base().Filter("schedule_date", today).Count()
 	todayDone, _ := base().Filter("schedule_date", today).Filter("status", 1).Count()
 	weekTotal, _ := base().Filter("schedule_date__gte", weekStart).Filter("schedule_date__lte", weekEnd).Count()
+	weekDone, _ := base().Filter("schedule_date__gte", weekStart).Filter("schedule_date__lte", weekEnd).Filter("status", 1).Count()
 	monthTotal, _ := base().Filter("schedule_date__gte", monthStart).Count()
 	monthDone, _ := base().Filter("schedule_date__gte", monthStart).Filter("status", 1).Count()
 	overdue, _ := base().Filter("schedule_date__lt", today).Filter("status", 0).Count()
@@ -283,6 +284,7 @@ func (c *BackendOaScheduleController) Stats() {
 		"today_total": todayTotal,
 		"today_done":  todayDone,
 		"week_total":  weekTotal,
+		"week_done":   weekDone,
 		"month_total": monthTotal,
 		"month_done":  monthDone,
 		"overdue":     overdue,