diff --git a/assets/web/css/site.css b/assets/web/css/site.css
index 9e9c08f..1a6e008 100644
--- a/assets/web/css/site.css
+++ b/assets/web/css/site.css
@@ -543,6 +543,100 @@ h3 {
   background: transparent;
 }
 
+/* Dataset tracks ----------------------------------------------------------- */
+
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0 0 0 0);
+  white-space: nowrap;
+  border: 0;
+}
+
+.dataset-tracks {
+  min-height: auto;
+  padding: 64px 0 72px;
+  background: linear-gradient(180deg, #fbfbf8, rgba(238, 246, 241, 0.72));
+}
+
+.dataset-tracks-scroll {
+  width: fit-content;
+  max-width: min(980px, 100%);
+  margin: 0 auto;
+  overflow-x: auto;
+  border: 1px solid var(--line);
+  border-radius: 14px;
+  background: var(--white);
+  box-shadow: 0 10px 34px rgba(23, 33, 28, 0.06);
+}
+
+.dataset-tracks-table {
+  width: auto;
+  min-width: 640px;
+  border-collapse: collapse;
+  font-size: 15px;
+  line-height: 1.6;
+}
+
+.dataset-tracks-table th,
+.dataset-tracks-table td {
+  padding: 14px 20px;
+  text-align: left;
+  vertical-align: top;
+  border-bottom: 1px solid var(--line);
+}
+
+.dataset-tracks-table thead th {
+  color: var(--green-dark);
+  font-size: 13px;
+  font-weight: 700;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  background: var(--wash);
+  border-bottom: 1px solid var(--line);
+}
+
+.dataset-tracks-table thead th:first-child {
+  border-top-left-radius: 13px;
+}
+
+.dataset-tracks-table thead th:last-child {
+  border-top-right-radius: 13px;
+}
+
+.dataset-tracks-table tbody tr:last-child th,
+.dataset-tracks-table tbody tr:last-child td {
+  border-bottom: 0;
+}
+
+.dataset-tracks-table tbody th[scope="row"] {
+  width: 96px;
+  font-weight: 600;
+}
+
+.dataset-tracks-table code {
+  padding: 3px 8px;
+  border-radius: 6px;
+  background: rgba(15, 123, 79, 0.08);
+  color: var(--green-dark);
+  font-family: var(--font-mono);
+  font-size: 13px;
+}
+
+.dataset-tracks-table td:nth-child(2) {
+  width: 148px;
+  color: var(--muted);
+  font-weight: 600;
+}
+
+.dataset-tracks-table td:last-child {
+  color: var(--ink);
+}
+
 /* Highlight framework ---------------------------------------------------- */
 
 #features {
diff --git a/assets/web/js/main.js b/assets/web/js/main.js
index d74771b..b92c264 100644
--- a/assets/web/js/main.js
+++ b/assets/web/js/main.js
@@ -7,14 +7,44 @@
 
 // Optional page analytics ---------------------------------------------------
 
-const pageViewCounter = document.querySelector("#busuanzi_page_pv");
+const pageViewCounter = document.querySelector("#busuanzi_value_page_pv");
 const isLocalPreview = ["localhost", "127.0.0.1", "::1"].includes(window.location.hostname);
 
-if (["http:", "https:"].includes(window.location.protocol) && !isLocalPreview) {
+const counterProviders = [
+  {
+    src: "https://busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js",
+  },
+  {
+    src: "https://busuanzi.9420.ltd/js",
+    prefix: "busuanzi_value",
+  },
+];
+let counterProviderIndex = -1;
+
+const loadCounterProvider = (index) => {
+  if (counterProviderIndex >= index || !pageViewCounter) return;
+  counterProviderIndex = index;
+  if (index >= counterProviders.length) {
+    pageViewCounter.textContent = "—";
+    return;
+  }
+
+  const provider = counterProviders[index];
   const busuanziScript = document.createElement("script");
   busuanziScript.defer = true;
-  busuanziScript.src = "https://busuanzi.9420.ltd/js";
+  busuanziScript.src = provider.src;
+  if (provider.prefix) busuanziScript.dataset.prefix = provider.prefix;
+  busuanziScript.addEventListener("error", () => loadCounterProvider(index + 1));
   document.head.appendChild(busuanziScript);
+
+  window.setTimeout(() => {
+    const value = (pageViewCounter.textContent ?? "").trim();
+    if (!value || value === "--") loadCounterProvider(index + 1);
+  }, 6000);
+};
+
+if (["http:", "https:"].includes(window.location.protocol) && !isLocalPreview) {
+  loadCounterProvider(0);
 } else if (pageViewCounter) {
   pageViewCounter.textContent = "—";
 }
diff --git a/index.html b/index.html
index 2b6fa50..7805c9c 100644
--- a/index.html
+++ b/index.html
@@ -13,7 +13,7 @@
     <meta property="og:description" content="A benchmark for on-device long-term memory." />
     <meta property="og:site_name" content="MobileMem" />
     <meta name="twitter:card" content="summary" />
-    <link rel="stylesheet" href="assets/web/css/site.css?v=20260817-5" />
+    <link rel="stylesheet" href="assets/web/css/site.css?v=20261009-1" />
     <link rel="stylesheet" href="assets/web/css/case-demo.css?v=20260812-5" />
     <link rel="stylesheet" href="assets/web/css/application-browser.css?v=20260811-11" />
   </head>
@@ -1040,6 +1040,89 @@ <h2 id="dataset-case-dialog-title">
         </div>
       </section>
 
+      <!-- Dataset tracks -->
+      <section
+        class="section compact dataset-tracks"
+        id="datasets"
+        aria-labelledby="datasets-title"
+      >
+        <div class="wrap">
+          <div class="center-head">
+            <p class="eyebrow">Data Categories</p>
+            <h2 id="datasets-title">
+              <span data-lang="zh">MobileMem 的数据分类</span>
+              <span data-lang="en">MobileMem Data Categories</span>
+            </h2>
+          </div>
+          <div class="dataset-tracks-scroll" tabindex="0">
+            <table class="dataset-tracks-table">
+              <caption class="sr-only">
+                <span data-lang="zh">MobileMem 包含的数据分类</span>
+                <span data-lang="en">The data categories included in MobileMem</span>
+              </caption>
+              <thead>
+                <tr>
+                  <th scope="col">
+                    <span data-lang="zh">数据集</span>
+                    <span data-lang="en">Track</span>
+                  </th>
+                  <th scope="col">
+                    <span data-lang="zh">模态</span>
+                    <span data-lang="en">Modality</span>
+                  </th>
+                  <th scope="col">
+                    <span data-lang="zh">描述</span>
+                    <span data-lang="en">Description</span>
+                  </th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <th scope="row"><code>text</code></th>
+                  <td>
+                    <span data-lang="zh">文本</span>
+                    <span data-lang="en">Text</span>
+                  </td>
+                  <td>
+                    <span data-lang="zh">长时程用户–助手对话与结构化移动应用事件。</span>
+                    <span data-lang="en"
+                      >Long-horizon user–assistant conversations and structured mobile-app
+                      events.</span
+                    >
+                  </td>
+                </tr>
+                <tr>
+                  <th scope="row"><code>omni</code></th>
+                  <td>
+                    <span data-lang="zh">文本与图像</span>
+                    <span data-lang="en">Text and images</span>
+                  </td>
+                  <td>
+                    <span data-lang="zh">包含截图与照片的多模态移动交互。</span>
+                    <span data-lang="en"
+                      >Multimodal mobile interactions with screenshots and photos.</span
+                    >
+                  </td>
+                </tr>
+                <tr>
+                  <th scope="row"><code>struct</code></th>
+                  <td>
+                    <span data-lang="zh">结构化数据</span>
+                    <span data-lang="en">Structured data</span>
+                  </td>
+                  <td>
+                    <span data-lang="zh">来自端侧应用的模拟结构化数据。</span>
+                    <span data-lang="en"
+                      >Simulated structured data from on-device applications.</span
+                    >
+                  </td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+        </div>
+      </section>
+
       <!-- Research highlights -->
       <section class="section" id="features" aria-labelledby="features-title">
         <div class="wrap">
@@ -1507,7 +1590,7 @@ <h2 id="institutions-title">
               <span class="counter-item">
                 <span data-lang="zh">访问量</span>
                 <span data-lang="en">Page views</span>
-                <strong id="busuanzi_page_pv">--</strong>
+                <strong id="busuanzi_value_page_pv">--</strong>
               </span>
             </div>
           </div>
@@ -1539,6 +1622,6 @@ <h2 id="institutions-title">
     <script src="assets/web/js/quick-start.js?v=20260811-2"></script>
     <script src="assets/web/js/application-scenarios.js?v=20260811-1"></script>
     <script src="assets/web/js/application-browser.js?v=20260811-10"></script>
-    <script src="assets/web/js/main.js?v=20260817-7"></script>
+    <script src="assets/web/js/main.js?v=20261009-1"></script>
   </body>
 </html>