Update index.html

index.html

@@ -2550,20 +2550,20 @@ updateCartBadge();
 if(location.search.includes('chat=1')){setTimeout(()=>toggleChat(),500)}
 });
 function shareQuoteLink(){
-  // Encode current cart with discounted prices
-  var parts=cart.map(function(c){
-    var disc=document.querySelector('.qt-disc[data-idx="'+cart.indexOf(c)+'"]');
+  var KEY='vai2026studio';
+  var parts=cart.map(function(c,i){
+    var disc=document.querySelector('.qt-disc[data-idx="'+i+'"]');
     var price=disc?parseInt(disc.value.replace(/\D/g,''))||c.priceNum:c.priceNum;
     return (c.sku||c.slug)+':'+c.qty+':'+price;
   });
-  var encoded=btoa(parts.join(',')).replace(/\+/g,'-').replace(/\//g,'_').replace(/=+$/,'');
-  var link=location.origin+'/?q='+encoded;
-  if(navigator.clipboard){
-    navigator.clipboard.writeText(link);
-    showToast('✅ Đã copy link báo giá!');
-  }
-  // Also show link
-  prompt('Link báo giá (chia sẻ qua Zalo/Facebook):',link);
+  var dataStr=parts.join(',');
+  var encrypted='';
+  for(var i=0;i<dataStr.length;i++)encrypted+=String.fromCharCode(dataStr.charCodeAt(i)^KEY.charCodeAt(i%KEY.length));
+  var encoded=btoa(encrypted).replace(/\+/g,'-').replace(/\//g,'_').replace(/=+$/,'');
+  var link=location.origin+'/?qd='+encoded;
+  if(navigator.clipboard)navigator.clipboard.writeText(link);
+  prompt('🔗 Link báo giá (đã áp CK) — chia sẻ qua Zalo:',link);
+  showToast('✅ Đã copy link báo giá!');
 }
 </script>