:root{--bg:#151821;--panel:#202532;--line:#373f51;--text:#edf0f7;--muted:#9aa5ba;--accent:#ffad4d;--blue:#60a5fa;--green:#4ade80;--pink:#f472b6;--purple:#a78bfa}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei",sans-serif;font-size:14px;overflow:hidden}header{height:52px;display:flex;align-items:center;padding:0 16px;background:#252a37;border-bottom:1px solid var(--line);gap:28px}.brand{font-size:18px;font-weight:bold;white-space:nowrap}.brand small{font-size:11px;color:var(--muted);font-weight:normal;margin-left:8px}button,select,input,textarea{font:inherit}button{background:#30394b;color:var(--text);border:1px solid #4b5870;border-radius:5px;padding:7px 10px;cursor:pointer}button:hover{background:#41506a}nav{display:flex;gap:7px}main{height:calc(100vh - 52px);display:grid;grid-template-columns:224px 1fr 280px}.palette,.inspector{background:var(--panel);border-right:1px solid var(--line);padding:15px;overflow:auto}.inspector{border-right:0;border-left:1px solid var(--line)}h2{font-size:14px;margin:3px 0 12px;color:#fff}.hint,.help,.empty{font-size:12px;color:var(--muted);line-height:1.7}.node-tool{display:block;width:100%;text-align:left;margin:7px 0;padding:10px;border-left:4px solid var(--blue)}.node-tool.branch{border-left-color:var(--accent)}.node-tool.reward{border-left-color:var(--pink)}.node-tool.calc{border-left-color:var(--purple)}.node-tool.end{border-left-color:#94a3b8}.secondary{width:100%;margin-top:7px;background:transparent}.palette hr,.inspector hr{border:0;border-top:1px solid var(--line);margin:16px 0}.chapter-list{display:flex;flex-direction:column;gap:4px}.chapter-item{text-align:left;border-color:transparent}.chapter-item.active{background:#3b4964;border-color:var(--blue)}.help{margin-top:20px;padding-top:13px;border-top:1px solid var(--line)}.workspace{min-width:0;display:flex;flex-direction:column}.projectbar{height:50px;background:#1c202b;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:18px;padding:0 18px}.projectbar strong{font-size:16px}.projectbar span{font-size:12px;color:var(--muted)}.projectbar #zoomLabel{margin-left:auto}#canvasViewport{position:relative;overflow:hidden;flex:1;background-color:#181c26;background-image:radial-gradient(#3b4354 1px,transparent 1px);background-size:22px 22px;cursor:grab}#canvasViewport.panning{cursor:grabbing}#canvas,#wireLayer{position:absolute;inset:0;width:100%;height:100%;transform-origin:0 0}#wireLayer{pointer-events:none;overflow:visible}.wire{fill:none;stroke:#8492ad;stroke-width:3;pointer-events:stroke}.wire.selected{stroke:var(--accent);stroke-width:4}.node{position:absolute;width:220px;min-height:100px;background:#293142;border:1px solid #53617a;border-radius:8px;box-shadow:0 10px 22px #0005;cursor:move;user-select:none}.node.selected{outline:2px solid var(--accent)}.node-head{padding:9px 12px;font-weight:bold;border-radius:7px 7px 0 0;background:#354155}.node.dialogue .node-head{border-left:4px solid var(--blue)}.node.branch .node-head{border-left:4px solid var(--accent)}.node.reward .node-head{border-left:4px solid var(--pink)}.node.calc .node-head{border-left:4px solid var(--purple)}.node.end .node-head{border-left:4px solid #94a3b8}.node-body{padding:10px 12px;color:#dbe3f0;white-space:pre-wrap;line-height:1.5;max-height:88px;overflow:hidden}.node-meta{font-size:11px;color:#aab6cd;padding:0 12px 10px}.port{position:absolute;top:50%;width:14px;height:14px;margin-top:-7px;border:2px solid #edf2f7;border-radius:50%;background:#64748b;z-index:3}.port.in{left:-8px}.port.out{right:-8px}.port:hover{background:var(--accent);transform:scale(1.2)}.canvas-tip{position:absolute;left:22px;bottom:18px;color:#8793a8;font-size:12px;pointer-events:none}label{display:block;margin:10px 0 4px;color:#b9c3d4;font-size:12px}input,textarea,select{width:100%;margin-top:4px;background:#161b25;border:1px solid #49566d;color:#edf0f7;border-radius:4px;padding:7px}textarea{resize:vertical}fieldset{border:1px solid #47536a;border-radius:5px;margin:13px 0;padding:6px 10px}legend{color:#cbd5e1;font-size:12px}.danger{background:#7f1d1d;border-color:#ef4444;width:100%;margin-top:8px}.option-row{display:flex;gap:4px;align-items:end}.option-row input{margin-bottom:4px}.option-row button{padding:6px 8px;margin-bottom:4px}.actor-row{display:flex;gap:5px;margin:5px 0}.actor-row input{margin:0}.actor-row button{padding:5px 8px}.condition-line{font-size:11px;color:#fbbf24;margin-top:4px}.calc-state{font-size:11px;color:#d8b4fe}.branch-choice{font-size:12px;border-top:1px solid #465167;padding:4px 0}.branch-choice:first-child{border-top:0}#toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);padding:10px 16px;background:#0f172a;border:1px solid #52617b;border-radius:6px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:10}#toast.visible{opacity:1}