diff --git a/tools/field-problem-workshop.html b/tools/field-problem-workshop.html
index ab4061d..d6c207f 100644
--- a/tools/field-problem-workshop.html
+++ b/tools/field-problem-workshop.html
@@ -36,7 +36,7 @@
   nav button .count{display:inline-block; margin-left:7px; background:var(--border); border-radius:12px; padding:1px 8px; font-size:12px; color:var(--text);}
   nav .flow{align-self:center; color:var(--border-strong); font-size:13px; padding:0 2px;}
 
-  main{padding:24px; max-width:1500px; margin:0 auto;}
+  main{padding:24px;}
   .panel{display:none;}
   .panel.active{display:block;}
   .panel-head{margin-bottom:18px;}
@@ -125,12 +125,12 @@
   .bc-related li{margin-left:22px; padding:2px 0; color:var(--text-secondary);}
   .bc-foot{display:flex; align-items:center; gap:14px; margin-top:12px; flex-wrap:wrap;}
   .bc-layout{display:grid; grid-template-columns:250px 1fr; gap:16px; align-items:start;}
-  .bc-nav{background:var(--layer); border:1px solid var(--border); position:sticky; top:12px; max-height:80vh; overflow-y:auto;}
-  .bc-nav-item{display:flex; align-items:center; gap:9px; padding:10px 12px; border-bottom:1px solid var(--border); cursor:pointer;}
+  .bc-nav{background:var(--layer); border:1px solid var(--border); position:sticky; top:12px; max-height:80vh; overflow-y:auto; overflow-x:hidden;}
+  .bc-nav-item{display:flex; align-items:flex-start; gap:9px; padding:10px 12px; border-bottom:1px solid var(--border); cursor:pointer; min-width:0;}
   .bc-nav-item:last-child{border-bottom:none;}
   .bc-nav-item:hover{background:var(--layer-hover);}
   .bc-nav-item.active{background:var(--layer-hover); border-left:3px solid var(--interactive); padding-left:9px;}
-  .bc-nav-text{flex:1; font-size:12.5px; line-height:1.35; color:var(--text-secondary);}
+  .bc-nav-text{flex:1; min-width:0; font-size:12.5px; line-height:1.35; color:var(--text-secondary); overflow-wrap:break-word;}
   .bc-nav-item.active .bc-nav-text{color:var(--text); font-weight:600;}
   .bc-dot{width:8px; height:8px; border-radius:50%; flex-shrink:0; background:var(--border-strong);}
   .bc-dot.complete{background:var(--success);}