diff --git a/viewer/股权架构查看器.html b/viewer/股权架构查看器.html
index e3494e1..ee1e00d 100644
--- a/viewer/股权架构查看器.html
+++ b/viewer/股权架构查看器.html
@@ -138,7 +138,8 @@ var baseOption = {
     label:{ position:'bottom', fontSize:11, color:'#333', formatter:'{b}', distance:4 },
     leaves:{ label:{ position:'bottom', fontSize:11, color:'#333' } },
     emphasis:{ focus:'descendant' },
-    lineStyle:{ color:'#999', width:1.2, curveness:0.15 },
+    edgeShape:'polyline',
+    lineStyle:{ color:'#999', width:1.2, curveness:0 },
     itemStyle:{ color:function(p){ return (p.data.children&&p.data.children.length)?'#1e6fd9':'#aab'; } }
   }]
 };
@@ -198,31 +199,69 @@ function expandPath(path) {
   var names = path.slice(0, -1).map(function(n){ return n.name; });
   if (names.length) chart.dispatchAction({ type:'treeExpandAndCollapse', seriesIndex:0, name: names });
 }
+// 剪枝：只保留命中公司的完整路径（祖先链 + 该公司子树）
+function prunePath(targetName) {
+  function build(n) {
+    var node = { name: n.name };
+    if (n.org2) node.org2 = n.org2;
+    if (n.name === targetName) {
+      // 命中：保留其直属子公司（供展开查看）
+      if (n.children && n.children.length) {
+        node.children = n.children.map(function(c){ return { name: c.name, org2: c.org2 || '' }; });
+      }
+      node.matched = true;
+      return node;
+    }
+    if (n.children && n.children.length) {
+      for (var i=0;i<n.children.length;i++) {
+        var sub = build(n.children[i]);
+        if (sub) {
+          node.children = [sub];
+          return node;
+        }
+      }
+    }
+    return null;
+  }
+  var pruned = build(rootNode);
+  return pruned ? [pruned] : null;
+}
+
 searchInput.addEventListener('input', function() {
   var q = searchInput.value.trim().toLowerCase();
   clearBtn.style.display = q ? 'block' : 'none';
-  if (!q) { chart.setOption({ series:[{ data: [rootNode], label:{formatter:'{b}', rich:{}} }] }); return; }
+  if (!q) {
+    chart.setOption({ series:[{ data: [rootNode], label:{formatter:'{b}', rich:{}} }] });
+    return;
+  }
   var matches = allNames.filter(function(n){ return n.toLowerCase().indexOf(q) !== -1; });
   if (matches.length === 0) { showTip('未找到包含「'+q+'」的公司'); return; }
   if (matches.length > 50) { showTip('找到 '+matches.length+' 家，仅展示前 50，请更精确'); matches = matches.slice(0,50); }
   var first = matches[0];
-  var path = findPath(first, rootNode, []);
-  if (path) expandPath(path);
-  showTip('找到 ' + matches.length + ' 家：' + matches.slice(0,5).join('、') + (matches.length>5?'…':''));
-  chart.setOption({
-    series: [{
-      data: [rootNode],
-      label: {
-        formatter: function(p){
-          if (p.data && p.data.name.toLowerCase().indexOf(q) !== -1) return '{matched|'+p.data.name+'}';
-          return p.data ? p.data.name : '';
-        },
-        rich: { matched:{ color:'#e6a700', fontWeight:'bold' } }
-      }
-    }]
-  });
+  var pruned = prunePath(first);
+  if (pruned) {
+    chart.setOption({
+      series: [{
+        data: pruned,
+        initialTreeDepth: 99,
+        label: {
+          formatter: function(p){
+            if (p.data && p.data.name.toLowerCase().indexOf(q) !== -1) return '{matched|'+p.data.name+'}';
+            return p.data ? p.data.name : '';
+          },
+          rich: { matched:{ color:'#e6a700', fontWeight:'bold', fontSize:13 } }
+        }
+      }]
+    });
+    showTip('定位到「'+first+'」 共 ' + matches.length + ' 家匹配，显示完整路径');
+  } else {
+    showTip('找到 ' + matches.length + ' 家：' + matches.slice(0,5).join('、') + (matches.length>5?'…':''));
+  }
 });
-clearBtn.onclick = function(){ searchInput.value=''; clearBtn.style.display='none'; chart.setOption({ series:[{ data: [rootNode], label:{formatter:'{b}', rich:{}} }] }); };
+clearBtn.onclick = function(){
+  searchInput.value=''; clearBtn.style.display='none';
+  chart.setOption({ series:[{ data: [rootNode], initialTreeDepth:1, label:{formatter:'{b}', rich:{}} }] });
+};
 
 chart.on('click', function(p){
   if (p.data && p.data.children && p.data.children.length) {