diff --git a/viewer/股权架构查看器.html b/viewer/股权架构查看器.html
index 0b38c9d..67ddda0 100644
--- a/viewer/股权架构查看器.html
+++ b/viewer/股权架构查看器.html
@@ -6,16 +6,21 @@
 <title>金地商置股权架构图</title>
 <style>
   * { margin:0; padding:0; box-sizing:border-box; }
-  body { font-family: "PingFang SC","Microsoft YaHei",sans-serif; background:#f5f7fa; }
-  .header { background:#1e6fd9; color:#fff; padding:12px 16px; display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
-  .header h1 { font-size:17px; font-weight:600; white-space:nowrap; }
-  .search-box { flex:1; min-width:200px; max-width:400px; position:relative; }
-  .search-box input { width:100%; padding:8px 34px 8px 12px; border:none; border-radius:6px; font-size:14px; outline:none; }
-  .search-box .clear { position:absolute; right:8px; top:50%; transform:translateY(-50%); cursor:pointer; color:#999; display:none; font-size:18px; }
-  .stats { font-size:12px; opacity:.9; white-space:nowrap; }
-  .legend { font-size:12px; opacity:.9; white-space:nowrap; }
-  #chart { width:100%; height:calc(100vh - 56px); }
-  .tip { position:fixed; bottom:16px; left:50%; transform:translateX(-50%); background:rgba(0,0,0,.75); color:#fff; padding:8px 16px; border-radius:20px; font-size:13px; z-index:99; display:none; }
+  html,body { height:100%; font-family:"PingFang SC","Microsoft YaHei",sans-serif; background:#f5f7fa; overflow:hidden; }
+  .header { background:#1e6fd9; color:#fff; padding:10px 14px; display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
+  .header h1 { font-size:16px; font-weight:600; white-space:nowrap; }
+  .search-box { flex:1; min-width:160px; max-width:360px; position:relative; }
+  .search-box input { width:100%; padding:7px 30px 7px 10px; border:none; border-radius:6px; font-size:13px; outline:none; }
+  .search-box .clear { position:absolute; right:8px; top:50%; transform:translateY(-50%); cursor:pointer; color:#999; display:none; font-size:16px; }
+  .stats { font-size:12px; opacity:.95; white-space:nowrap; }
+  .btn-group { display:flex; gap:6px; flex-wrap:wrap; }
+  .btn { background:rgba(255,255,255,.18); color:#fff; border:1px solid rgba(255,255,255,.35); border-radius:5px;
+         padding:5px 10px; font-size:12px; cursor:pointer; transition:background .15s; }
+  .btn:hover { background:rgba(255,255,255,.32); }
+  #wrap { position:relative; overflow:auto; background:#fff; }
+  #chart { width:100%; height:100%; }
+  .tip { position:fixed; bottom:16px; left:50%; transform:translateX(-50%); background:rgba(0,0,0,.78); color:#fff;
+         padding:8px 16px; border-radius:20px; font-size:13px; z-index:99; display:none; max-width:80%; text-align:center; }
   .matched { font-weight:700; color:#e6a700; }
 </style>
 </head>
@@ -23,13 +28,19 @@
 <div class="header">
   <h1>🏢 金地商置股权架构图</h1>
   <div class="search-box">
-    <input id="search" type="text" placeholder="🔍 搜索公司名称（如：威新 / 金地 / 置业）">
+    <input id="search" type="text" placeholder="🔍 搜索公司名称">
     <span class="clear" id="clearBtn">×</span>
   </div>
   <div class="stats" id="stats"></div>
-  <div class="legend">🟦 根公司 &nbsp; ⬜ 子公司 &nbsp; 🔍 点击节点展开/收起 &nbsp; 滚轮缩放</div>
+  <div class="btn-group">
+    <button class="btn" id="btnZoomIn">🔍 放大</button>
+    <button class="btn" id="btnZoomOut">🔍 缩小</button>
+    <button class="btn" id="btnReset">🔄 重置</button>
+    <button class="btn" id="btnExpandAll">📂 全部展开</button>
+    <button class="btn" id="btnCollapseAll">📁 全部收起</button>
+  </div>
 </div>
-<div id="chart"></div>
+<div id="wrap"><div id="chart"></div></div>
 <div class="tip" id="tip"></div>
 
 <script>
@@ -84,55 +95,103 @@ var treeData = [{"name": "上海信能度尔信息科技有限公司", "org2": "
 var relCount = 630;
 var companyCount = 668;
 
-// 统计节点数
-function countNodes(n) { return 1 + (n.children||[]).reduce((s,c)=>s+countNodes(c),0); }
-document.getElementById('stats').textContent = '共 ' + companyCount + ' 家公司 · ' + relCount + ' 条持股关系';
+function countNodes(n) { return 1 + (n.children||[]).reduce(function(s,c){return s+countNodes(c);},0); }
+var totalNodes = treeData.reduce(function(s,n){return s+countNodes(n);},0);
+var depth = 7;
+var maxW = 121;
+document.getElementById('stats').textContent = companyCount + ' 家公司 · ' + relCount + ' 条关系 · ' + depth + ' 层';
 
-var chart = echarts.init(document.getElementById('chart'));
-window.addEventListener('resize', function(){ chart.resize(); });
+var wrap = document.getElementById('wrap');
+var chartEl = document.getElementById('chart');
+var chart = echarts.init(chartEl);
+
+// ===== 画布尺寸 =====
+var BASE_W = Math.max(1600, maxW * 50);
+var BASE_H = Math.max(800, depth * 140);
+var zoom = 1.0;
+var MIN_ZOOM = 0.3, MAX_ZOOM = 4.0;
+
+function applySize() {
+  chartEl.style.width = (BASE_W * zoom) + 'px';
+  chartEl.style.height = (BASE_H * zoom) + 'px';
+  chart.resize();
+}
 
-// 为每个节点加 children 数量标签
 function annotate(n) {
   n.value = [n.name, (n.children||[]).length];
-  n.label = { formatter: '{b}' };
   (n.children||[]).forEach(annotate);
   return n;
 }
 treeData.forEach(annotate);
 
-var option = {
-  tooltip: {
-    trigger: 'item',
-    triggerOn: 'mousemove',
-    formatter: function(p) {
-      if (p.data && p.data.org2) return '<b>' + p.data.name + '</b><br>所属：' + p.data.org2;
-      return p.data ? p.data.name : '';
-    }
-  },
+// 初始: 只展开第一层
+function markCollapsed(ns, isRoot) {
+  ns.forEach(function(n){
+    if (!isRoot && n.children && n.children.length) n.collapsed = true;
+    if (n.children) markCollapsed(n.children, false);
+  });
+}
+markCollapsed(treeData, true);
+
+var baseOption = {
+  tooltip: { trigger:'item', triggerOn:'mousemove',
+    formatter: function(p){ return p.data ? '<b>'+p.data.name+'</b>'+(p.data.org2?'<br>所属：'+p.data.org2:'') : ''; } },
   series: [{
-    type: 'tree',
-    data: treeData,
-    top: '8%', bottom: '8%', left: '6%', right: '18%',
-    symbol: 'circle', symbolSize: 8,
-    initialTreeDepth: 1,           // 默认只展开第一层（分层展开）
-    expandAndCollapse: true,       // 点击展开/收起
-    roam: true,                    // 滚轮缩放 + 拖拽
-    label: { position: 'left', verticalAlign: 'middle', align: 'right', fontSize: 12, color: '#333' },
-    leaves: { label: { position: 'right', verticalAlign: 'middle', align: 'left' } },
-    emphasis: { focus: 'descendant' },
-    lineStyle: { color: '#999', width: 1.2, curveness: 0.2 },
-    itemStyle: { color: function(p){ return p.data.children && p.data.children.length ? '#1e6fd9' : '#aab'; } }
+    type:'tree', data: treeData, orient:'TB',
+    top:'4%', bottom:'4%', left:'2%', right:'2%',
+    symbol:'circle', symbolSize:7,
+    initialTreeDepth:1, expandAndCollapse:true, roam:true,
+    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 },
+    itemStyle:{ color:function(p){ return (p.data.children&&p.data.children.length)?'#1e6fd9':'#aab'; } }
   }]
 };
-chart.setOption(option);
+chart.setOption(baseOption);
+applySize();
 
-// ===== 搜索功能 =====
+window.addEventListener('resize', function(){ chart.resize(); });
+
+// ===== 缩放按钮 =====
+function setZoom(z) {
+  zoom = Math.min(MAX_ZOOM, Math.max(MIN_ZOOM, z));
+  applySize();
+  showTip('缩放 ' + Math.round(zoom*100) + '%');
+}
+document.getElementById('btnZoomIn').onclick = function(){ setZoom(zoom * 1.25); };
+document.getElementById('btnZoomOut').onclick = function(){ setZoom(zoom / 1.25); };
+document.getElementById('btnReset').onclick = function(){ zoom = 1.0; applySize(); showTip('已重置视图'); };
+
+// ===== 全部展开/收起 =====
+function collectParents(ns, arr) {
+  ns.forEach(function(n){
+    if (n.children && n.children.length) { arr.push(n.name); collectParents(n.children, arr); }
+  });
+  return arr;
+}
+function expandAll() {
+  chart.dispatchAction({ type:'treeExpandAndCollapse', seriesIndex:0, name: collectParents(treeData, []) });
+  showTip('已全部展开');
+}
+function collapseAll() {
+  var names = [];
+  treeData.forEach(function(n){ if(n.children) n.children.forEach(function(c){ names.push(c.name); }); });
+  chart.dispatchAction({ type:'treeExpandAndCollapse', seriesIndex:0, name: names });
+  showTip('已全部收起');
+}
+document.getElementById('btnExpandAll').onclick = expandAll;
+document.getElementById('btnCollapseAll').onclick = collapseAll;
+
+// ===== 搜索 =====
 var searchInput = document.getElementById('search');
 var clearBtn = document.getElementById('clearBtn');
 var tip = document.getElementById('tip');
-var lastQuery = '';
+var tipTimer = null;
+function showTip(msg){ tip.textContent=msg; tip.style.display='block'; clearTimeout(tipTimer); tipTimer=setTimeout(function(){tip.style.display='none';},3000); }
 
-function showTip(msg) { tip.textContent = msg; tip.style.display = 'block'; setTimeout(function(){ tip.style.display='none'; }, 3000); }
+var allNames = [];
+(function collect(ns){ ns.forEach(function(n){ allNames.push(n.name); if(n.children) collect(n.children); }); })(treeData);
 
 function findPath(name, nodes, path) {
   for (var i=0;i<nodes.length;i++) {
@@ -145,70 +204,46 @@ function findPath(name, nodes, path) {
   }
   return null;
 }
-
-// 收集所有公司名 → 搜索建议
-var allNames = [];
-(function collect(ns){ ns.forEach(function(n){ allNames.push(n.name); if(n.children) collect(n.children); }); })(treeData);
-
-// 展开路径（把某节点的所有祖先展开）
 function expandPath(path) {
-  var expanded = [];
-  for (var i=0;i<path.length-1;i++) {
-    expanded.push(path[i].name);
-  }
-  chart.dispatchAction({
-    type: 'treeExpandAndCollapse',
-    seriesIndex: 0,
-    name: expanded
-  });
-  chart.setOption({ series:[{ data: treeData }] });
+  var names = path.slice(0, -1).map(function(n){ return n.name; });
+  if (names.length) chart.dispatchAction({ type:'treeExpandAndCollapse', seriesIndex:0, name: names });
 }
-
 searchInput.addEventListener('input', function() {
   var q = searchInput.value.trim().toLowerCase();
   clearBtn.style.display = q ? 'block' : 'none';
   if (!q) {
-    // 清空搜索：重置为初始视图
-    chart.setOption({ series:[{ data: treeData }] });
+    chart.setOption({ series:[{ data: treeData, 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，仅显示前 50 家，请更精确'); matches = matches.slice(0,50); }
-  // 高亮匹配项（通过 tooltip 提示 + 展开第一个匹配的路径）
+  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, treeData, []);
-  if (path) {
-    expandPath(path);
-    showTip('找到 ' + matches.length + ' 家：' + matches.slice(0,5).join('、') + (matches.length>5?'…':''));
-  }
-  // 高亮所有匹配节点
+  if (path) expandPath(path);
+  showTip('找到 ' + matches.length + ' 家：' + matches.slice(0,5).join('、') + (matches.length>5?'…':''));
   chart.setOption({
     series: [{
       data: treeData,
       label: {
         formatter: function(p){
-          if (p.data && p.data.name.toLowerCase().indexOf(q) !== -1) return '{matched|' + p.data.name + '}';
+          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' } }
+        rich: { matched:{ color:'#e6a700', fontWeight:'bold' } }
       }
     }]
   });
 });
+clearBtn.onclick = function(){ searchInput.value=''; clearBtn.style.display='none'; chart.setOption({ series:[{ data: treeData, label:{formatter:'{b}', rich:{}} }] }); };
 
-clearBtn.addEventListener('click', function(){
-  searchInput.value = '';
-  clearBtn.style.display = 'none';
-  chart.setOption({ series:[{ data: treeData }] });
-});
-
-// 点击空白处提示
 chart.on('click', function(p){
   if (p.data && p.data.children && p.data.children.length) {
-    showTip('「' + p.data.name + '」' + (p.data.children.length) + ' 家子公司');
+    showTip('「'+p.data.name+'」共 ' + p.data.children.length + ' 家子公司');
   }
 });
+
+setTimeout(function(){ zoom=1.0; applySize(); }, 200);
 </script>
 </body>
 </html>