:root{--bg: #f4f6f8;--panel: #ffffff;--ink: #17202a;--muted: #667085;--line: #dfe4ea;--line-strong: #cbd3dc;--teal: #087f7a;--teal-soft: #e8f5f3;--blue: #2563a9;--blue-soft: #edf4fb;--green: #287a57;--green-soft: #eaf6ef;--amber: #a86514;--amber-soft: #fff4df;--red: #b54747;--red-soft: #fcecec;--sidebar: #18252e;--sidebar-muted: #aebbc4;--shadow: 0 10px 28px rgba(23, 32, 42, .08)}*{box-sizing:border-box}html{min-width:320px}body{margin:0;min-height:100vh;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft JhengHei,PingFang TC,Arial,sans-serif;line-height:1.5;letter-spacing:0}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{margin-bottom:6px;font-size:26px;line-height:1.25}h2{margin-bottom:8px;font-size:20px;line-height:1.3}h3{margin-bottom:10px;font-size:16px;line-height:1.3}p{color:var(--muted)}a{color:inherit}.login-screen{min-height:100vh;display:grid;grid-template-columns:minmax(360px,.9fr) 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h2{margin:0;font-size:16px}.tree-search{margin-bottom:10px}.tree-list{display:grid;gap:3px}.tree-group{margin-top:8px;color:var(--muted);font-size:11px;font-weight:900}.tree-region{margin-top:10px;padding:7px 8px 4px;display:flex;align-items:center;gap:7px;color:#667085;font-size:12px;font-weight:900}.tree-row{display:flex;align-items:center;gap:2px}.tree-row .tree-node{flex:1}.tree-node{width:100%;min-height:36px;padding:0 8px;display:flex;align-items:center;gap:7px;border:0;border-radius:5px;color:#344054;background:transparent;text-align:left;font-size:13px;font-weight:700}.tree-node.child{padding-left:26px}.tree-node.grandchild{padding-left:44px}.tree-node:hover{background:#f4f7f8}.tree-node.active{color:var(--teal);background:var(--teal-soft)}.tree-node .tree-actions{margin-left:auto;display:flex;gap:2px;opacity:0}.tree-node:hover 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