:root{--bg:#eef2f6;--panel:#fff;--ink:#1f2b3a;--muted:#6b7b8c;--line:#d8e0e8;--accent:#1f5fa8;--accent-soft:#e8f0fa;--accent-2:#2f8f6b;--warn:#c96a1e;--shadow:0 1px 3px #1f2b3a14, 0 6px 18px #1f2b3a0f;--r:12px}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:Segoe UI,system-ui,-apple-system,Roboto,Arial,sans-serif;font-size:14px}#root{height:100%}button{font-family:inherit}.app{flex-direction:column;height:100vh;min-height:720px;display:flex}.topbar{background:var(--panel);border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:5;align-items:center;gap:16px;padding:10px 16px;display:flex}.logo{letter-spacing:.2px;align-items:center;gap:10px;font-size:17px;font-weight:800;display:flex}.logo .glogo{height:27px;display:block}.badge3d{color:var(--accent);letter-spacing:.5px;font-size:18px;font-weight:800}.proj{color:var(--muted);border-left:1px solid var(--line);padding-left:14px;font-size:13px}.spacer{flex:1}.topbtn{border:1px solid var(--line);cursor:pointer;color:var(--ink);background:#fff;border-radius:9px;align-items:center;gap:7px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.topbtn svg{width:17px;height:17px}.topbtn.ghost{background:0 0;border-color:#0000;padding:8px}.topbtn.primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px #1f5fa84d}.topbtn:disabled{opacity:.45;cursor:not-allowed}.toolbar{background:var(--panel);border-bottom:1px solid var(--line);align-items:stretch;gap:0;padding:8px 14px;display:flex;overflow-x:auto}.group{border-right:1px solid var(--line);flex-direction:column;padding:0 14px;display:flex}.group:last-child{border-right:none}.group-row{gap:6px;display:flex}.group-name{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);text-align:center;margin-top:6px;font-size:10.5px;font-weight:700}.tool{cursor:pointer;width:58px;height:52px;color:var(--ink);background:0 0;border:1px solid #0000;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px;transition:all .12s;display:flex}.tool:hover:not(:disabled){background:var(--accent-soft);border-color:#cfe0f2}.tool.active{background:var(--accent-soft);border-color:var(--accent)}.tool svg{width:24px;height:24px}.tool span{font-size:10.5px;font-weight:600;line-height:1}.tool.big svg{width:26px;height:26px}.tool:disabled{opacity:.4;cursor:not-allowed}.body{flex:1;grid-template-columns:248px 1fr 268px;min-height:0;display:grid}.panel{background:var(--panel);flex-direction:column;min-height:0;display:flex}.panel.left{border-right:1px solid var(--line)}.panel.right{border-left:1px solid var(--line)}.panel-head{border-bottom:1px solid var(--line);align-items:center;gap:8px;padding:12px 14px;font-size:13px;font-weight:700;display:flex}.panel-head svg{width:16px;height:16px;color:var(--accent)}.panel-head .count{color:var(--muted);margin-left:auto;font-size:12px;font-weight:600}.tree{padding:6px;overflow:auto}.node{cursor:pointer;border-radius:9px;align-items:center;gap:9px;padding:9px 10px;font-size:13px;font-weight:600;display:flex}.node:hover{background:#f3f7fb}.node.sel{background:var(--accent-soft);outline:1px solid #cfe0f2}.node svg{width:18px;height:18px;color:var(--accent);flex:none}.node .sub{color:var(--muted);margin-left:auto;font-size:11.5px;font-weight:500}.node.root{color:var(--muted);text-transform:uppercase;letter-spacing:.5px;cursor:default;padding:10px 10px 4px;font-size:11px;font-weight:700}.node.root:hover{background:0 0}.node.empty{color:var(--muted);cursor:default;padding:14px 12px;font-size:12.5px;font-weight:500}.node.empty:hover{background:0 0}.node.future{opacity:.5;cursor:default}.node.future:hover{background:0 0}.viewport{position:relative;overflow:hidden}.viewport canvas{width:100%;height:100%;display:block}.vhint{border:1px solid var(--line);color:var(--muted);pointer-events:none;background:#ffffffd9;border-radius:20px;align-items:center;gap:8px;padding:6px 12px;font-size:12px;font-weight:600;display:flex;position:absolute;bottom:14px;left:16px}.vhint svg{width:15px;height:15px}.vhint--error{color:#c0392b;background:#fff5f4eb;border-color:#e3b3ac}.app-toast{z-index:1000;color:#c0392b;background:#fff5f4fa;border:1px solid #e3b3ac;border-radius:12px;align-items:center;gap:10px;max-width:min(560px,100vw - 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