diff --git a/src/app/(main)/coupon-data/page.tsx b/src/app/(main)/coupon-data/page.tsx
index 0c38767..7811e16 100644
--- a/src/app/(main)/coupon-data/page.tsx
+++ b/src/app/(main)/coupon-data/page.tsx
@@ -19,12 +19,7 @@ import {
   Tooltip,
   Typography,
 } from 'antd';
-import {
-  CaretDownOutlined,
-  CaretUpOutlined,
-  DownOutlined,
-  InfoCircleOutlined,
-} from '@ant-design/icons';
+import { DownOutlined, InfoCircleOutlined } from '@ant-design/icons';
 import dayjs, { type Dayjs } from 'dayjs';
 import { api, errMsg } from '@/lib/api';
 import { formatUtcTime } from '@/lib/format';
@@ -142,31 +137,13 @@ const SLOT_PLATFORM: Record<string, string> = {
 };
 const slotPlatformLabel = (p: string | null): string => (p ? SLOT_PLATFORM[p] ?? p : '其他');
 
-// 三平台品牌色(指标卡左侧色块用):美团黄 / 淘宝闪购橙 / 京东红。
+// 三平台品牌色(平台名前小圆点用):美团黄 / 淘宝闪购橙 / 京东红。
 const SLOT_PLATFORM_COLOR: Record<string, string> = {
   'meituan-waimai': '#FFB300',
   'taobao-shanguang': '#FF6A00',
   'jd-waimai': '#E1251B',
 };
 
-// 点位成功率「环比上一等长周期」徽标:绿↑/红↓/灰持平/灰暂无上期。
-// 口径对齐数据大盘 pointDelta:成功率为 0..1,差值换算成百分点(pt)。
-function SlotRateDelta({ rate, prev }: { rate: number | null | undefined; prev: number | null | undefined }) {
-  if (rate == null || prev == null)
-    return <span style={{ fontSize: 12, color: '#bfbfbf' }}>暂无上期</span>;
-  const diffPt = (rate - prev) * 100;
-  if (Math.abs(diffPt) < 0.05) return <span style={{ fontSize: 12, color: '#8c8c8c' }}>持平</span>;
-  const up = diffPt > 0;
-  return (
-    <span
-      style={{ fontSize: 12, color: up ? '#3f8600' : '#cf1322', display: 'inline-flex', alignItems: 'center', gap: 2 }}
-    >
-      {up ? <CaretUpOutlined /> : <CaretDownOutlined />}
-      {Math.abs(diffPt).toFixed(1)}pt
-    </span>
-  );
-}
-
 // 点手机号弹出的「该用户全部领券」抽屉列(精简版:单用户,不含用户/手机号列)。
 const RECORD_COLUMNS: ColumnsType<CouponDataRow> = [
   { title: '时间', dataIndex: 'started_at', width: 160, render: (v: string) => formatUtcTime(v) },
@@ -370,8 +347,6 @@ export default function CouponDataPage() {
   const [couponSlots, setCouponSlots] = useState<CouponSlotRow[]>([]);
   // 按券表:默认隐藏,点某平台点位成功率卡 → 展开该平台的券表(null=隐藏)。
   const [selectedSlotPlatform, setSelectedSlotPlatform] = useState<string | null>(null);
-  // 上一等长周期各平台点位成功率(算环比涨跌;拉取失败为 null → 显示「暂无上期」)。
-  const [prevPerPlatform, setPrevPerPlatform] = useState<Record<string, number | null> | null>(null);
   const [loading, setLoading] = useState(false);
   // 点手机号:抽屉看该用户全部领券(总次数 + 记录)
   const [recordsUser, setRecordsUser] = useState<{ userId: number; phone: string | null } | null>(null);
@@ -388,10 +363,6 @@ export default function CouponDataPage() {
       const to = range[1].format('YYYY-MM-DD');
       const multiDay = from !== to;
       const gran = multiDay ? 'day' : granularity;
-      // 环比:上一个等长周期(对齐数据大盘「环比上周期」口径)。
-      const spanDays = range[1].diff(range[0], 'day') + 1;
-      const prevTo = range[0].subtract(1, 'day');
-      const prevFrom = prevTo.subtract(spanDays - 1, 'day');
       setLoading(true);
       try {
         const res = await api.get<CouponDataReport>('/admin/api/coupon-data', {
@@ -417,23 +388,6 @@ export default function CouponDataPage() {
           })
           .then((r) => setCouponSlots(r.data.items))
           .catch(() => setCouponSlots([]));
-        // 并行拉「上一周期」汇总算环比(同筛选条件、上一等长周期);只用 summary,limit=1 省流量,失败按「暂无上期」。
-        api
-          .get<CouponDataReport>('/admin/api/coupon-data', {
-            params: {
-              date_from: prevFrom.format('YYYY-MM-DD'),
-              date_to: prevTo.format('YYYY-MM-DD'),
-              user: user.trim() || undefined,
-              app_env: appEnv,
-              status: statuses,
-              granularity: 'day',
-              limit: 1,
-              offset: 0,
-            },
-            paramsSerializer: { indexes: null },
-          })
-          .then((r) => setPrevPerPlatform(r.data.summary?.per_platform ?? null))
-          .catch(() => setPrevPerPlatform(null));
         setPage(targetPage);
         setQueriedLimit(targetLimit);
         setQueriedGranularity(gran);
@@ -760,7 +714,7 @@ export default function CouponDataPage() {
             {(['meituan-waimai', 'taobao-shanguang', 'jd-waimai'] as const).map((pid) => {
               const active = selectedSlotPlatform === pid;
               const rate = summary.per_platform?.[pid];
-              // 左侧品牌色块 | 中间大数字+环比 | 底部「查看明细」按钮;仅按钮可展开表格。
+              // 平台名(前置品牌色圆点) | 大数字成功率 | 「查看明细」按钮;仅按钮可展开表格。
               return (
                 <Col flex="1 1 0" key={pid}>
                   <div
@@ -785,9 +739,8 @@ export default function CouponDataPage() {
                       />
                       {`${SLOT_PLATFORM[pid]}点位成功率`}
                     </div>
-                    <div style={{ display: 'flex', alignItems: 'baseline', gap: 8, margin: '4px 0 10px' }}>
-                      <span style={{ fontSize: 26, fontWeight: 600, lineHeight: 1.1 }}>{fmtPct(rate)}</span>
-                      <SlotRateDelta rate={rate} prev={prevPerPlatform?.[pid]} />
+                    <div style={{ fontSize: 26, fontWeight: 600, lineHeight: 1.1, margin: '4px 0 10px' }}>
+                      {fmtPct(rate)}
                     </div>
                     <Button
                       size="small"