diff --git a/index.html b/index.html
index 0acf601..35c6db7 100644
--- a/index.html
+++ b/index.html
@@ -119,6 +119,29 @@
       </table>
     </div>
   </div>
+
+  <div class="card">
+    <h2>骗量排行榜 <span class="tag">前一天 · 按 account · 占比降序</span></h2>
+    <ul class="note-list">
+      <li>按 <b>campaign_id</b> 重新聚合（同 campaign_id 的所有 adping_id 的 clicks、conversion 累加）</li>
+      <li><b>可疑 campaign</b>：clicks 总数 &gt; 500 且 conversion = 0 的 campaign</li>
+      <li><b>骗量占比</b> = 可疑 campaign 数 / campaign 总数，占比越高越靠前</li>
+    </ul>
+    <div style="overflow:auto;">
+      <table id="fraudTable">
+        <thead>
+          <tr>
+            <th>排名</th>
+            <th class="txt">account</th>
+            <th>campaign 总数</th>
+            <th>可疑 campaign 数<br><span style="font-weight:normal;font-size:11px;">(&gt;500点击 &amp; 0转化)</span></th>
+            <th>骗量占比</th>
+          </tr>
+        </thead>
+        <tbody></tbody>
+      </table>
+    </div>
+  </div>
 </div>
 
 <script>
@@ -230,6 +253,42 @@ function renderDetail(){
   updateSortArrows();
 }
 
+function renderFraud(){
+  // 取"前一天" = 明细里最新的 dt
+  if(!ALL.length){ document.querySelector('#fraudTable tbody').innerHTML='<tr><td colspan="5" class="empty">暂无数据</td></tr>'; return; }
+  var maxDt = ALL.reduce(function(m,d){ return dtKey(d.dt)>dtKey(m)?d.dt:m; }, ALL[0].dt);
+  var rows = ALL.filter(function(d){ return d.dt===maxDt; });
+  // 按 account -> campaign_id 聚合 clicks/conversion
+  var byAcc = {}; // acc -> { campId -> {clicks,conv} }
+  rows.forEach(function(d){
+    var acc=d.account||'未知', cid=String(d.campaign_id||'');
+    if(!byAcc[acc]) byAcc[acc]={};
+    if(!byAcc[acc][cid]) byAcc[acc][cid]={clicks:0,conv:0};
+    byAcc[acc][cid].clicks += (+d.clicks||0);
+    byAcc[acc][cid].conv   += (+d.conversion||0);
+  });
+  var list = Object.keys(byAcc).map(function(acc){
+    var camps = byAcc[acc];
+    var ids = Object.keys(camps);
+    var total = ids.length;
+    var suspicious = ids.filter(function(cid){ return camps[cid].clicks>500 && camps[cid].conv===0; }).length;
+    return { account:acc, total:total, suspicious:suspicious, ratio: total? suspicious/total : 0 };
+  });
+  list.sort(function(a,b){ return b.ratio-a.ratio || b.suspicious-a.suspicious || b.total-a.total; });
+  var tb=document.querySelector('#fraudTable tbody');
+  if(!list.length){ tb.innerHTML='<tr><td colspan="5" class="empty">暂无数据</td></tr>'; return; }
+  tb.innerHTML = list.map(function(r,i){
+    var hot = r.ratio>=0.5 ? 'neg' : '';
+    return '<tr>'
+      +'<td>'+(i+1)+'</td>'
+      +'<td class="txt">'+r.account+'</td>'
+      +'<td>'+num(r.total)+'</td>'
+      +'<td>'+num(r.suspicious)+'</td>'
+      +'<td class="'+hot+'">'+pct(r.ratio)+'</td>'
+      +'</tr>';
+  }).join('');
+}
+
 function renderTotal(rows){
   var c=0,cv=0,rev=0,cost=0;
   rows.forEach(function(d){ c+=(+d.clicks||0); cv+=(+d.conversion||0); rev+=(+d.revenue||0); cost+=(+d.cost||0); });
@@ -267,6 +326,7 @@ fetch('data.json?_='+Date.now()).then(function(r){return r.json();}).then(functi
   ALL = d.detail||[];
   document.getElementById('meta').textContent='数据更新时间：'+(d.updated_at||'—')+'　|　总表 '+SUMMARY.length+' 天　|　明细 '+ALL.length+' 行';
   renderSummary();
+  renderFraud();
   fillSelects();
   // 默认 dt 范围 = 数据里的最早~最新
   if(ALL.length){