diff --git a/apps/viewer/src/__tests__/ad-carousel.spec.ts b/apps/viewer/src/__tests__/ad-carousel.spec.ts
index 3896599..01ecf81 100644
--- a/apps/viewer/src/__tests__/ad-carousel.spec.ts
+++ b/apps/viewer/src/__tests__/ad-carousel.spec.ts
@@ -56,9 +56,13 @@ describe('AdCarousel', () => {
 
     const dots = wrapper.findAll('.ad-dots button');
     expect(dots.length).toBe(3);
+    expect(dots[0].attributes('aria-current')).toBe('true'); // 当前项程序化状态
+    expect(dots[1].attributes('aria-current')).toBeUndefined();
     await dots[1].trigger('click');
     expect(currentSrc(wrapper)).toBe('https://ad.test/b.jpg');
-    expect(dots[1].classes()).toContain('ad-dot--active');
+    expect(dots[1].classes()).toContain('active');
+    expect(dots[1].attributes('aria-current')).toBe('true');
+    expect(dots[0].attributes('aria-current')).toBeUndefined();
   });
 
   it('emits close when the ✕ button is clicked', async () => {
diff --git a/apps/viewer/src/components/ads/AdCarousel.vue b/apps/viewer/src/components/ads/AdCarousel.vue
index 2111e2e..a15139c 100644
--- a/apps/viewer/src/components/ads/AdCarousel.vue
+++ b/apps/viewer/src/components/ads/AdCarousel.vue
@@ -108,7 +108,8 @@ function openAd(ad: PublicAd): void {
     <nav v-if="ads.length > 1" class="ad-dots" :aria-label="t('ads.dots')">
       <button
         v-for="(ad, i) in ads" :key="ad.adId" type="button" class="ad-dot"
-        :class="{ 'ad-dot--active': i === current }" :aria-label="t('ads.goto', { n: i + 1 })"
+        :class="{ active: i === current }" :aria-current="i === current ? 'true' : undefined"
+        :aria-label="t('ads.goto', { n: i + 1 })"
         @click="goTo(i)"
       />
     </nav>
@@ -127,6 +128,9 @@ function openAd(ad: PublicAd): void {
   border-radius: var(--viewer-radius-img);
   background: var(--viewer-dark-bg); /* 图像加载期的暗色衬底 */
   font-family: var(--viewer-font-family);
+  /* 水平翻页手势自持（touchstart/end 判定），纵向滚动交还页面——
+   * ThumbnailStrip pan-x 的对偶（pan-y）。 */
+  touch-action: pan-y;
 }
 .ad-slide {
   display: block;
@@ -191,7 +195,15 @@ function openAd(ad: PublicAd): void {
   border-radius: 50%;
   background: color-mix(in srgb, var(--viewer-surface) 55%, transparent);
 }
-.ad-dot--active::before {
+.ad-dot.active::before {
   background: var(--viewer-surface);
 }
+/* 键盘焦点指示（AlbumHeader/ThumbnailStrip 同规：2px 主色描边）。主色对
+ * 暗色衬底/color-mix 蒙层对比 ≈4:1（非文本 ≥3:1）。 */
+.ad-slide:focus-visible,
+.ad-close:focus-visible,
+.ad-dot:focus-visible {
+  outline: 2px solid var(--viewer-primary);
+  outline-offset: 1px;
+}
 </style>
diff --git a/apps/viewer/src/pages/ActivityPage.vue b/apps/viewer/src/pages/ActivityPage.vue
index 3d69d19..7a90f89 100644
--- a/apps/viewer/src/pages/ActivityPage.vue
+++ b/apps/viewer/src/pages/ActivityPage.vue
@@ -77,7 +77,7 @@ async function load(): Promise<void> {
     // 广告独立拉取（Task 10）：失败静默（广告缺席不阻塞相册浏览）；会话级
     // 关闭记忆先行（命中则连请求都省）。沿用 sequence 防跨相册竞态落地。
     ads.value = [];
-    if (sessionStorage.getItem('viewer:ads-dismissed') !== '1') {
+    if (sessionStorage.getItem('viewer.adsDismissed') !== '1') {
       getPublicAds(token.value)
         .then((result) => {
           if (sequence !== loadSequence) return;
@@ -122,7 +122,7 @@ function selectCategory(categoryId: string | null): void {
 
 /** 关闭广告（Task 10）：会话级记忆（本次会话不再拉取/渲染），组件只 emit。 */
 function dismissAds(): void {
-  sessionStorage.setItem('viewer:ads-dismissed', '1');
+  sessionStorage.setItem('viewer.adsDismissed', '1');
   ads.value = [];
 }