diff --git a/frontend/js/geom7_svg.js b/frontend/js/geom7_svg.js
index 18d68ef..a8a4d86 100644
--- a/frontend/js/geom7_svg.js
+++ b/frontend/js/geom7_svg.js
@@ -36,7 +36,7 @@ G.svgBox = function(w, h, opts){
       +'</pattern></defs>'
       +'<rect width="'+w+'" height="'+h+'" fill="url(#g7-grid-'+(opts.id||'def')+')"/>';
   }
-  return { open:'<svg viewBox="0 0 '+w+' '+h+'" width="'+w+'" height="'+h+'" style="max-width:'+(opts.maxWidth||'100%')+';height:auto;display:block;margin:'+(opts.margin||'0 auto')+';background:'+bg+';border-radius:10px;border:1px solid #e2e8f0">'+gridSvg, close:'</svg>' };
+  return { open:'<svg viewBox="0 0 '+w+' '+h+'" preserveAspectRatio="xMidYMid meet" style="width:100%;max-width:'+(opts.maxWidth||(w+'px'))+';height:auto;display:block;margin:'+(opts.margin||'0 auto')+';background:'+bg+';border-radius:10px;border:1px solid #e2e8f0">'+gridSvg, close:'</svg>' };
 };
 
 /* === Точка === */
diff --git a/frontend/textbooks/geometry_7_ch1.html b/frontend/textbooks/geometry_7_ch1.html
index bc480f8..e75c851 100644
--- a/frontend/textbooks/geometry_7_ch1.html
+++ b/frontend/textbooks/geometry_7_ch1.html
@@ -13,7 +13,7 @@
   onload="renderMathInElement(document.body,{delimiters:[{left:'$$',right:'$$',display:true},{left:'$',right:'$',display:false},{left:'\\[',right:'\\]',display:true},{left:'\\(',right:'\\)',display:false}],throwOnError:false})"></script>
 <script src="/js/api.js" defer></script>
 <script src="/js/xp.js" defer></script>
-<script src="/js/geom7_svg.js?v=4" defer></script>
+<script src="/js/geom7_svg.js?v=5" defer></script>
 <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Manrope:wght@600;700;800;900&family=Unbounded:wght@700;800;900&family=JetBrains+Mono:wght@500;700&display=swap" rel="stylesheet">
 <style>
 :root{
diff --git a/frontend/textbooks/geometry_7_ch2.html b/frontend/textbooks/geometry_7_ch2.html
index 5a96eef..b73af68 100644
--- a/frontend/textbooks/geometry_7_ch2.html
+++ b/frontend/textbooks/geometry_7_ch2.html
@@ -13,7 +13,7 @@
   onload="renderMathInElement(document.body,{delimiters:[{left:'$$',right:'$$',display:true},{left:'$',right:'$',display:false},{left:'\\[',right:'\\]',display:true},{left:'\\(',right:'\\)',display:false}],throwOnError:false})"></script>
 <script src="/js/api.js" defer></script>
 <script src="/js/xp.js" defer></script>
-<script src="/js/geom7_svg.js?v=4" defer></script>
+<script src="/js/geom7_svg.js?v=5" defer></script>
 <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Manrope:wght@600;700;800;900&family=Unbounded:wght@700;800;900&family=JetBrains+Mono:wght@500;700&display=swap" rel="stylesheet">
 <style>
 :root{