diff --git a/index.html b/index.html
index 35c6db7..42d5a33 100644
--- a/index.html
+++ b/index.html
@@ -38,8 +38,8 @@
   .note-list b{color:var(--head);}
   .total-row td{position:sticky;top:33px;background:#eef2f7;font-weight:700;color:var(--head);border-top:2px solid #cbd5e1;z-index:1;}
   .total-row td.txt{text-align:left;}
-  th.sortable{cursor:pointer;user-select:none;}
-  th.sortable:hover{background:#374151;}
+  th.sortable,th.fsortable{cursor:pointer;user-select:none;}
+  th.sortable:hover,th.fsortable:hover{background:#374151;}
   th .arrow{display:inline-block;width:10px;margin-left:3px;font-size:10px;color:#93c5fd;}
   th.sort-asc .arrow::after{content:"\25B2";}
   th.sort-desc .arrow::after{content:"\25BC";}
@@ -132,10 +132,10 @@
         <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>
+            <th class="txt fsortable" data-key="account" data-type="str">account<span class="arrow"></span></th>
+            <th class="fsortable" data-key="total" data-type="num">campaign 总数<span class="arrow"></span></th>
+            <th class="fsortable" data-key="suspicious" data-type="num">可疑 campaign 数<span class="arrow"></span><br><span style="font-weight:normal;font-size:11px;">(&gt;500点击 &amp; 0转化)</span></th>
+            <th class="fsortable" data-key="ratio" data-type="num">骗量占比<span class="arrow"></span></th>
           </tr>
         </thead>
         <tbody></tbody>
@@ -253,13 +253,15 @@ 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 FRAUD = [];
+var FSORT_KEY='ratio', FSORT_TYPE='num', FSORT_DIR='desc';
+
+function computeFraud(){
+  FRAUD=[];
+  if(!ALL.length) 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} }
+  var byAcc = {};
   rows.forEach(function(d){
     var acc=d.account||'未知', cid=String(d.campaign_id||'');
     if(!byAcc[acc]) byAcc[acc]={};
@@ -267,26 +269,39 @@ function renderFraud(){
     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);
+  FRAUD = Object.keys(byAcc).map(function(acc){
+    var camps = byAcc[acc], 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; });
+}
+
+function renderFraud(){
+  var dir=(FSORT_DIR==='asc'?1:-1), k=FSORT_KEY, type=FSORT_TYPE;
+  var list = FRAUD.slice().sort(function(a,b){
+    if(type==='str'){ return dir*String(a[k]).localeCompare(String(b[k])); }
+    var va=Number(a[k])||0, vb=Number(b[k])||0;
+    return (va<vb?-1:va>vb?1:0)*dir || b.ratio-a.ratio || b.suspicious-a.suspicious;
+  });
   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('');
+  if(!list.length){ tb.innerHTML='<tr><td colspan="5" class="empty">暂无数据</td></tr>'; }
+  else {
+    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('');
+  }
+  document.querySelectorAll('#fraudTable th.fsortable').forEach(function(th){
+    th.classList.remove('sort-asc','sort-desc');
+    if(th.getAttribute('data-key')===FSORT_KEY) th.classList.add(FSORT_DIR==='asc'?'sort-asc':'sort-desc');
+  });
 }
 
 function renderTotal(rows){
@@ -314,6 +329,15 @@ document.querySelectorAll('#detailTable th.sortable').forEach(function(th){
   });
 });
 
+document.querySelectorAll('#fraudTable th.fsortable').forEach(function(th){
+  th.addEventListener('click',function(){
+    var key=th.getAttribute('data-key'), type=th.getAttribute('data-type');
+    if(FSORT_KEY===key){ FSORT_DIR=(FSORT_DIR==='asc'?'desc':'asc'); }
+    else { FSORT_KEY=key; FSORT_TYPE=type; FSORT_DIR='desc'; }
+    renderFraud();
+  });
+});
+
 document.getElementById('applyBtn').onclick=renderDetail;
 document.getElementById('resetBtn').onclick=function(){
   ['fDtFrom','fDtTo','fRc','fCid','fPkg'].forEach(function(id){document.getElementById(id).value='';});
@@ -326,6 +350,7 @@ 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();
+  computeFraud();
   renderFraud();
   fillSelects();
   // 默认 dt 范围 = 数据里的最早~最新