diff --git a/src/app/(main)/ad-revenue-report/page.tsx b/src/app/(main)/ad-revenue-report/page.tsx
index 2989d2a..08ccf3f 100644
--- a/src/app/(main)/ad-revenue-report/page.tsx
+++ b/src/app/(main)/ad-revenue-report/page.tsx
@@ -43,6 +43,8 @@ import type {
 import UserAdRevenueDrawer from './UserAdRevenueDrawer';
 
 const { RangePicker } = DatePicker;
+const DEFAULT_PAGE_SIZE = 50;
+const ALL_FILTER_VALUE = '__all__';
 
 // 广告类型标签
 const TYPE_TAG: Record<string, { color: string; label: string }> = {
@@ -194,7 +196,16 @@ type AdRevenueDetailRow = AdRevenueRecord & { source_adn?: string | null };
 
 // 展开行(逐条事件展开)- 该条的发奖复算明细(还原金币审计的 eCPM/因子1/份数/LT/因子2 等列)
 const DETAIL_COLUMNS: ColumnsType<AdRevenueDetailRow> = [
-  { title: '来源广告网络', dataIndex: 'source_adn', width: 110, render: (value: string | null) => value || '-' },
+  {
+    title: '来源广告网络',
+    dataIndex: 'source_adn',
+    width: 110,
+    render: (value: string | null) => value?.trim() || (
+      <Tooltip title="该历史记录没有可唯一确认的 SDK 广告来源，未猜测填充。">
+        <span>未上报</span>
+      </Tooltip>
+    ),
+  },
   {
     title: 'eCPM（元）',
     dataIndex: 'ecpm',
@@ -387,13 +398,13 @@ export default function AdRevenueReportPage() {
   const [scene, setScene] = useState<string | undefined>();
   const [granularity, setGranularity] = useState<'day' | 'hour'>('day');
   const [sortBy, setSortBy] = useState<'time' | 'ecpm'>('time'); // 明细排序:time=时间倒序 / ecpm=eCPM 倒序
-  const [limit, setLimit] = useState<number>(1000); // 默认拉满接口单页上限，供单次流程广告数分位统计
+  const [limit, setLimit] = useState<number>(DEFAULT_PAGE_SIZE);
   const [page, setPage] = useState<number>(1); // 当前页码(后端分页;1 起)
   const [queriedGranularity, setQueriedGranularity] = useState<'day' | 'hour'>('day'); // 本次结果对应的粒度,决定是否显示「小时」列
   const [queriedMultiDay, setQueriedMultiDay] = useState(false); // 本次结果是否跨多天,决定显示「日期」列 + 按天/按小时图
   const [data, setData] = useState<AdRevenueReport | null>(null);
   const [allFlowItems, setAllFlowItems] = useState<AdRevenueRow[]>([]);
-  const [queriedLimit, setQueriedLimit] = useState<number>(1000);
+  const [queriedLimit, setQueriedLimit] = useState<number>(DEFAULT_PAGE_SIZE);
   const [loading, setLoading] = useState(false);
   const [formulaOpen, setFormulaOpen] = useState(false);
   // 点用户手机号弹出的「用户广告收益详情」半屏抽屉(userId + 手机号;null=关闭)
@@ -783,12 +794,11 @@ export default function AdRevenueReportPage() {
           <Space size={6}>
             <Typography.Text type="secondary">类型</Typography.Text>
             <Select
-              placeholder="全部"
-              value={adType}
-              onChange={setAdType}
-              allowClear
+              value={adType ?? ALL_FILTER_VALUE}
+              onChange={(value) => setAdType(value === ALL_FILTER_VALUE ? undefined : value)}
               style={{ width: 150 }}
               options={[
+                { value: ALL_FILTER_VALUE, label: '全部' },
                 { value: 'reward_video', label: '看视频' },
                 { value: 'draw', label: 'Draw 信息流' },
                 { value: 'withdrawal_video', label: '提现看视频' },
@@ -798,12 +808,11 @@ export default function AdRevenueReportPage() {
           <Space size={6}>
             <Typography.Text type="secondary">场景</Typography.Text>
             <Select
-              placeholder="全部"
-              value={scene}
-              onChange={setScene}
-              allowClear
+              value={scene ?? ALL_FILTER_VALUE}
+              onChange={(value) => setScene(value === ALL_FILTER_VALUE ? undefined : value)}
               style={{ width: 130 }}
               options={[
+                { value: ALL_FILTER_VALUE, label: '全部' },
                 { value: 'comparison', label: '比价' },
                 { value: 'coupon', label: '领券' },
                 { value: 'welfare', label: '福利' },
@@ -1110,7 +1119,11 @@ export default function AdRevenueReportPage() {
                   style={{ marginTop: 8 }}
                   rowKey="record_id"
                   columns={DETAIL_COLUMNS}
-                  dataSource={r.sub_rewards.map((detail) => ({ ...detail, source_adn: r.adn }))}
+                  dataSource={r.sub_rewards.map((detail) => ({
+                    ...detail,
+                    // 一次比价/领券可能由不同 ADN 连续填充，优先显示本条发奖记录的来源。
+                    source_adn: detail.adn ?? r.adn,
+                  }))}
                   pagination={false}
                   size="small"
                   scroll={{ x: 900 }}
@@ -1126,7 +1139,10 @@ export default function AdRevenueReportPage() {
                   style={{ marginTop: 8 }}
                   rowKey="record_id"
                   columns={DETAIL_COLUMNS}
-                  dataSource={[{ ...r.reward_detail, source_adn: r.adn }]}
+                  dataSource={[{
+                    ...r.reward_detail,
+                    source_adn: r.reward_detail.adn ?? r.adn,
+                  }]}
                   pagination={false}
                   size="small"
                   scroll={{ x: 900 }}
diff --git a/src/app/(main)/layout.tsx b/src/app/(main)/layout.tsx
index b63fdc5..389f232 100644
--- a/src/app/(main)/layout.tsx
+++ b/src/app/(main)/layout.tsx
@@ -91,6 +91,7 @@ const NAV_GROUPS: NavGroup[] = [
       { key: '/users', icon: <UserOutlined />, label: '用户管理' },
     ],
   },
+  { key: '/admins', icon: <TeamOutlined />, label: '权限管理' },
   {
     key: 'monitoring-audit',
     icon: <FileSearchOutlined />,
@@ -103,7 +104,6 @@ const NAV_GROUPS: NavGroup[] = [
       { key: '/audit-logs', icon: <FileSearchOutlined />, label: '审计日志' },
     ],
   },
-  { key: '/admins', icon: <TeamOutlined />, label: '权限管理' },
 ];
 
 // 导航项 key(/dashboard)→ 权限页 key(dashboard),与后端 permissions.py 目录对齐
@@ -223,8 +223,7 @@ export default function MainLayout({ children }: { children: React.ReactNode })
           position: 'sticky',
           top: 0,
           height: '100vh',
-          overflowY: 'auto',
-          overflowX: 'hidden',
+          overflow: 'hidden',
         }}
       >
         <nav className={`side-nav${collapsed ? ' side-nav-collapsed' : ''}`} aria-label="后台导航">
@@ -314,8 +313,19 @@ export default function MainLayout({ children }: { children: React.ReactNode })
         .side-nav {
           display: flex;
           flex-direction: column;
+          box-sizing: border-box;
           gap: 4px;
-          padding: 0 10px 14px;
+          height: calc(100vh - 48px);
+          min-height: 0;
+          overflow-x: hidden;
+          overflow-y: auto;
+          overscroll-behavior: contain;
+          padding: 0 10px 20px;
+          scrollbar-gutter: stable;
+          -webkit-overflow-scrolling: touch;
+        }
+        .side-nav:focus-within {
+          scroll-behavior: smooth;
         }
         .nav-group {
           padding: 6px 0 8px;
diff --git a/src/lib/types.ts b/src/lib/types.ts
index 26d8d95..18c2a32 100644
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -542,6 +542,8 @@ export interface AdRevenueRecord {
   expected_coin: number;
   actual_coin: number;
   matched: boolean;
+  adn: string | null; // 本条发奖对应的实际填充 ADN
+  slot_id: string | null; // 本条发奖对应的底层 mediation rit
 }
 
 // 广告收益报表:按日期汇总的一天(按天趋势图用;全量,不受分页影响)