:root{
  /* dark neumorphism surface + dual shadows */
  --bg:#23262e;
  --bg-2:#1f222a;
  --bg-3:#272b34;
  --panel:#23262e;
  --line:#2c313b;
  --line-2:#363c48;
  --txt:#e8ebf2;
  --txt-dim:#98a1b3;
  --txt-mute:#6b7384;
  --accent:#7c5cff;
  --accent-2:#13c2c2;
  --grad:linear-gradient(135deg,#7c5cff 0%,#13c2c2 100%);
  --green:#3ecf8e;
  --red:#ff6b6b;
  --yellow:#ffcc66;
  --node-w:230px;
  --outline-w:220px;
  /* neumorphic shadow palette */
  --sh-dark:#16181d;
  --sh-light:#30343f;
  --nm-out:6px 6px 12px var(--sh-dark), -6px -6px 12px var(--sh-light);
  --nm-out-sm:4px 4px 8px var(--sh-dark), -4px -4px 8px var(--sh-light);
  --nm-out-lg:11px 11px 24px var(--sh-dark), -11px -11px 24px var(--sh-light);
  --nm-in:inset 5px 5px 10px var(--sh-dark), inset -5px -5px 10px var(--sh-light);
  --nm-in-sm:inset 3px 3px 6px var(--sh-dark), inset -3px -3px 6px var(--sh-light);
  --nm-in-lg:inset 7px 7px 15px var(--sh-dark), inset -7px -7px 15px var(--sh-light);
}
*{box-sizing:border-box;}
html,body{height:100%;margin:0;}
body{
  background:var(--bg);color:var(--txt);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  display:flex;flex-direction:column;overflow:hidden;
  font-size:13px;
}

/* ===== Toolbar ===== */
#toolbar{
  display:flex;align-items:center;gap:14px;
  padding:10px 14px;background:var(--bg);
  box-shadow:var(--nm-out);border:none;flex:0 0 auto;
  position:relative;z-index:5;
}
.tb-group{display:flex;align-items:center;gap:6px;}
/* logo group spans exactly the scene-list column, including the 2px toolbar/layout
   padding offset, so its right edge and the project-name's left edge both meet the
   scene-list's right vertical divider (--outline-w shifted by the layout padding) */
.tb-group.tb-logo{width:calc(var(--outline-w) + 2px);justify-content:flex-end;}
/* project-name left edge meets the preview canvas's left vertical line;
   places it at (layout padding 16 + outline 220 + gap 16) = 252px viewport,
   i.e. flush with the preview interface's left edge */
.tb-group.tb-proj{margin-left:2px;}
/* the ad group yields space first so the right-side buttons (incl. 居中视图) never get clipped */
.tb-group.tb-ad{flex:0 1 auto;min-width:0;}
.logo-img{height:34px;width:auto;display:block;border-radius:10px;flex:0 0 auto;
  background:var(--bg);box-shadow:var(--nm-out-sm);padding:3px;}
.proj-name{
  display:block;width:200px;box-sizing:border-box;
  background:var(--bg);border:none;color:var(--txt);
  box-shadow:var(--nm-in-sm);border-radius:10px;padding:8px 12px;font-size:13px;font-weight:600;
}
.proj-name:focus{box-shadow:var(--nm-in-sm),0 0 0 1px var(--accent);}
.proj-name::placeholder{color:var(--txt-mute);font-weight:400;}
.ad-slot{
  display:flex;align-items:center;justify-content:center;
  height:34px;flex:1 1 150px;min-width:120px;max-width:200px;
  background:var(--bg);box-shadow:var(--nm-in-sm);border:1px dashed var(--line-2);border-radius:10px;
  overflow:hidden;cursor:pointer;text-decoration:none;color:var(--txt-dim);
  font-size:12px;letter-spacing:1px;position:relative;
}
.ad-slot.has-img{border-style:solid;border-color:transparent;}
.ad-img{width:100%;height:100%;object-fit:cover;display:none;}
.ad-ph{padding:0 10px;opacity:.7;pointer-events:none;}
.btn{
  background:var(--bg);border:none;color:var(--txt);
  box-shadow:var(--nm-out-sm);border-radius:10px;padding:8px 13px;cursor:pointer;font-size:12.5px;
  transition:.15s;white-space:nowrap;
}
.btn:hover{box-shadow:var(--nm-out);color:#fff;}
.btn:active{box-shadow:var(--nm-in-sm);transform:none;}
.btn.primary{background:var(--grad);color:#fff;font-weight:600;}
.btn.primary:hover{filter:brightness(1.08);box-shadow:var(--nm-out);}
.btn.primary:active{box-shadow:var(--nm-in-sm);}
.btn.icon{padding:6px 10px;min-width:30px;}
.btn.danger{color:var(--red);}
.btn.danger:hover{color:#fff;background:var(--red);box-shadow:var(--nm-out-sm);}
.btn.accent{background:var(--grad);color:#fff;}
.btn.accent:hover{filter:brightness(1.08);box-shadow:var(--nm-out);}
.btn.accent:active{box-shadow:var(--nm-in-sm);}
.zoom-label{color:var(--txt-dim);min-width:42px;text-align:center;font-variant-numeric:tabular-nums;}

/* ===== Layout ===== */
#layout{flex:1;display:flex;min-height:0;gap:16px;padding:16px;background:var(--bg);}
#outline{
  width:var(--outline-w);flex:0 0 auto;background:var(--bg);
  box-shadow:var(--nm-out);border-radius:16px;display:flex;flex-direction:column;overflow:hidden;
}
#props{
  width:320px;flex:0 0 auto;background:var(--bg);
  box-shadow:var(--nm-out);border-radius:16px;display:flex;flex-direction:column;overflow:hidden;
}
.panel-title{
  padding:13px 15px;font-weight:600;font-size:12px;color:var(--txt-dim);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.5px;
}
.badge{background:var(--bg);box-shadow:var(--nm-in-sm);color:var(--txt-dim);border-radius:10px;padding:2px 9px;font-size:11px;}
.game-name{
  display:block;margin:10px 14px 6px;width:auto;
  background:var(--bg);box-shadow:var(--nm-in-sm);border:none;color:var(--txt);
  border-radius:10px;padding:8px 10px;font-size:13px;font-weight:600;
}
.game-name:focus{box-shadow:var(--nm-in-sm),0 0 0 1px var(--accent);}
.game-name::placeholder{color:var(--txt-mute);font-weight:400;}
#sceneList{list-style:none;margin:0;padding:8px;overflow:auto;flex:1;}
#sceneList li{
  padding:9px 11px;border-radius:10px;cursor:pointer;display:flex;
  align-items:center;gap:8px;margin-bottom:5px;background:var(--bg);box-shadow:var(--nm-out-sm);
  transition:.12s;
}
#sceneList li:hover{box-shadow:var(--nm-out);}
#sceneList li.active{box-shadow:var(--nm-in-sm);color:#fff;}
#sceneList li .dot{width:9px;height:9px;border-radius:50%;background:var(--line-2);flex:0 0 auto;box-shadow:var(--nm-in-sm);}
#sceneList li.start .dot{background:var(--green);box-shadow:0 0 0 3px rgba(62,207,142,.2);}
#sceneList li .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
#sceneList li .tag{font-size:10px;color:var(--txt-dim);}
.hint{padding:12px 14px;font-size:11px;color:var(--txt-dim);border-top:1px solid var(--line);line-height:1.6;}

/* ===== Canvas (recessed well) ===== */
#canvasWrap{flex:1;position:relative;min-width:0;
  background:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0) 0 0/26px 26px,
    var(--bg-2);
  box-shadow:var(--nm-in-lg);border-radius:18px;overflow:hidden;
}
#canvas{position:absolute;inset:0;overflow:hidden;cursor:grab;}
#canvas.panning{cursor:grabbing;}
#world{position:absolute;top:0;left:0;transform-origin:0 0;}
#edges{position:absolute;top:0;left:0;width:8000px;height:6000px;overflow:visible;pointer-events:none;}
#edges path.hit{pointer-events:stroke;cursor:pointer;}
#nodes{position:absolute;top:0;left:0;}

/* ===== Node (raised card) ===== */
.node{
  position:absolute;width:var(--node-w);background:var(--bg);
  box-shadow:var(--nm-out);border-radius:14px;border:none;user-select:none;
}
.node.selected{box-shadow:var(--nm-out),0 0 0 2px var(--accent);}
.node.start{box-shadow:var(--nm-out),0 0 0 1.5px var(--green);}
.node-head{
  height:38px;display:flex;align-items:center;gap:7px;padding:0 12px;
  cursor:move;border-bottom:1px solid var(--line);border-radius:14px 14px 0 0;
  background:var(--bg-2);
}
.node.start .node-head{background:linear-gradient(180deg,rgba(62,207,142,.20),rgba(62,207,142,.06));}
.node-head .title{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.node-head .flag{font-size:10px;color:var(--green);border:1px solid var(--green);border-radius:4px;padding:0 4px;}
.node-head .a-flag{margin-left:6px;font-size:12px;}
.node-media{
  height:96px;background:var(--bg);box-shadow:var(--nm-in-sm);
  display:flex;align-items:center;justify-content:center;color:var(--txt-dim);
  font-size:11px;overflow:hidden;margin:8px;border-radius:8px;
}
.node-media img,.node-media video{max-width:100%;max-height:100%;object-fit:cover;display:block;}
.node-choices{padding:8px 0 6px;}
.choice-row{
  position:relative;height:30px;display:flex;align-items:center;
  padding:0 12px;font-size:12px;color:var(--txt-dim);
}
.choice-row .ctxt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.choice-row .cnum{
  width:18px;height:18px;border-radius:50%;background:var(--bg);box-shadow:var(--nm-in-sm);
  color:var(--txt-dim);font-size:10px;display:flex;align-items:center;
  justify-content:center;margin-right:8px;flex:0 0 auto;
}
.choice-row .ce-flag{margin-left:6px;color:var(--yellow);font-size:11px;}
.choice-row .ce-flag.cond{color:var(--accent-2);}
.port{
  position:absolute;right:-7px;top:50%;transform:translateY(-50%);
  width:14px;height:14px;border-radius:50%;background:var(--accent-2);
  border:3px solid var(--bg);cursor:crosshair;transition:.1s;z-index:2;box-shadow:var(--nm-out-sm);
}
.port:hover{background:var(--yellow);transform:translateY(-50%) scale(1.3);}
.port.linked{background:var(--green);}
.node.empty .node-choices{display:none;}

/* ===== Edges ===== */
.edge-line{fill:none;stroke:var(--accent-2);stroke-width:2.5;opacity:.55;}
.edge-line.temp{stroke:var(--yellow);stroke-dasharray:5 4;opacity:1;}
.edge-arrow{fill:var(--accent-2);}
.edge-label{
  fill:var(--txt-dim);font-size:10px;paint-order:stroke;
  stroke:var(--bg-2);stroke-width:3px;
}

/* ===== Properties ===== */
.prop-body{flex:1;overflow:auto;padding:14px;}
.empty-tip{color:var(--txt-dim);text-align:center;margin-top:40px;font-size:12.5px;line-height:1.8;}
.field{margin-bottom:12px;}
.field label{display:block;font-size:11.5px;color:var(--txt-dim);margin-bottom:6px;letter-spacing:.3px;}
.field input[type=text],.field textarea,.field select{
  width:100%;background:var(--bg);box-shadow:var(--nm-in-sm);border:none;
  color:var(--txt);border-radius:10px;padding:8px 10px;font-size:12.5px;font-family:inherit;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;box-shadow:var(--nm-in-sm),0 0 0 1px var(--accent);}
.field textarea{resize:vertical;min-height:64px;line-height:1.5;}
.field .row{display:flex;gap:8px;}
.field .row > *{flex:1;}
.media-preview{
  margin-top:8px;height:90px;box-shadow:var(--nm-in-sm);border-radius:10px;
  background:var(--bg-2);display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.media-preview img,.media-preview video{max-width:100%;max-height:100%;object-fit:contain;}
.media-preview .ph{color:var(--txt-mute);font-size:11px;}
.section-h{font-size:11.5px;color:var(--txt-dim);margin:16px 0 8px;font-weight:600;letter-spacing:.4px;
  padding-top:14px;border-top:1px solid var(--line);}
.choice-edit{box-shadow:var(--nm-out-sm);border-radius:10px;padding:10px;margin-bottom:8px;background:var(--bg);}
.choice-edit .ce-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;}
.choice-edit .ce-head .num{font-size:11px;color:var(--txt-dim);}
.ce-del{background:none;border:none;color:var(--red);cursor:pointer;font-size:13px;padding:3px 6px;border-radius:6px;}
.ce-del:hover{box-shadow:var(--nm-in-sm);}
.btn.small{padding:5px 9px;font-size:11.5px;}
.btn.block{width:100%;}
.start-toggle{display:flex;align-items:center;gap:8px;margin:6px 0 2px;}
.start-toggle input{width:auto;accent-color:var(--accent);}
.danger-zone{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;}

/* ===== Play overlay (fullscreen media player) ===== */
.play-overlay{position:fixed;inset:0;background:#0b0d11;z-index:50;}
.play-overlay.hidden{display:none;}
.play-stage{position:absolute;inset:0;background:#0b0d11;overflow:auto;
  display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:18px;padding:24px;}
#playCenter{margin:auto 0;display:flex;flex-direction:column;align-items:center;gap:18px;width:100%;}
/* fixed-size media frame: always the same 16:9 stage regardless of media aspect */
.play-media{position:relative;width:960px;height:540px;background:var(--bg-2);border-radius:16px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:var(--nm-in-lg);}
.play-media-box{width:100%;height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.play-media img,.play-media video{width:100%;height:100%;object-fit:contain;display:block;}
.play-media .ph{color:#555;font-size:14px;}
/* character sprites overlaid on top of the media frame */
.play-chars{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden;}
.play-char{position:absolute;bottom:4%;left:50%;transform:translateX(-50%);height:50%;max-width:62%;width:auto;object-fit:contain;filter:drop-shadow(0 4px 10px rgba(0,0,0,.5));}
.play-dock{
  width:min(860px,92vw);
  display:flex;flex-direction:column;align-items:center;gap:12px;padding:0;
}
.play-caption{position:absolute;left:0;right:0;bottom:0;z-index:6;background:transparent;border:none;text-align:center;padding:18px 16px 20px;color:var(--txt);text-shadow:0 1px 6px rgba(0,0,0,.65);pointer-events:none;}
.play-speaker{color:var(--accent);font-weight:700;font-size:15px;margin-bottom:8px;text-shadow:0 1px 4px #000;}
.play-text{color:var(--txt);font-size:17px;line-height:1.75;white-space:pre-wrap;text-shadow:0 1px 6px rgba(0,0,0,.65);}
.play-choices{width:min(860px,92vw);display:flex;flex-direction:column;align-items:center;gap:10px;}
.play-choices button{
  width:100%;background:var(--bg);box-shadow:var(--nm-out-sm);border:none;color:var(--txt);
  padding:13px 16px;border-radius:12px;cursor:pointer;font-size:14px;text-align:center;transition:.15s;
}
.play-choices button:hover{box-shadow:var(--nm-out);color:#fff;}
.play-choices button:active{box-shadow:var(--nm-in-sm);}
.play-choices .end{width:100%;text-align:center;color:var(--txt-dim);font-style:italic;}
.play-controls{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:30;opacity:0;pointer-events:none;transition:opacity .25s;}
.play-controls.show{opacity:1;pointer-events:auto;}
@media(max-width:720px){.play-controls{right:auto;left:50%;top:auto;bottom:14px;transform:translateX(-50%);flex-direction:row;}}
.play-audio{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;}
.play-audio.hidden{display:none;}
.play-audio .pa-label{color:var(--txt-dim);font-size:12px;}
.play-video-ctl{display:flex;justify-content:center;}
.play-video-ctl.hidden{display:none;}
.mini-status{position:absolute;left:12px;bottom:10px;color:var(--txt-dim);font-size:11px;background:var(--bg);box-shadow:var(--nm-out-sm);padding:5px 10px;border-radius:10px;pointer-events:none;}

/* ===== play-state HUD (chips, top-left, like export .hud) ===== */
.play-state{position:absolute;left:10px;top:10px;display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-start;z-index:5;max-width:90%;pointer-events:none;}
.play-state .chip{background:var(--bg);box-shadow:var(--nm-in-sm);border-radius:999px;padding:5px 12px;font-size:13px;display:flex;gap:6px;align-items:center;}
.play-state .chip .ck{color:var(--txt-dim);}
.play-state .chip .cv{color:var(--accent-2);font-weight:700;}

/* ===== ad banners (play overlay preview) ===== */
.play-ads{width:min(1200px,96vw);display:flex;gap:14px;flex-wrap:wrap;justify-content:center;flex:0 0 auto;}
.play-ad{display:none;position:relative;flex:1 1 0;min-width:280px;height:64px;border-radius:12px;overflow:hidden;text-decoration:none;background:var(--grad);box-shadow:0 8px 24px rgba(0,0,0,.4);}
.play-ad.show{display:block;}
.play-ad img{width:100%;height:100%;object-fit:cover;display:block;position:relative;z-index:1;}
.ad-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700;letter-spacing:2px;padding:0 14px;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;z-index:0;}

/* ===== modal ===== */
.modal{position:fixed;inset:0;background:rgba(8,10,14,.6);z-index:80;display:flex;
  align-items:center;justify-content:center;backdrop-filter:blur(3px);}
.modal.hidden{display:none;}
.modal-card{width:min(560px,94vw);max-height:88vh;overflow:auto;background:var(--bg);
  border-radius:18px;box-shadow:var(--nm-out-lg);}
.modal-head{display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;font-weight:600;font-size:15px;border-bottom:1px solid var(--line);}
.modal-x{background:none;border:none;color:var(--txt-dim);font-size:16px;cursor:pointer;border-radius:8px;padding:4px 8px;}
.modal-x:hover{box-shadow:var(--nm-in-sm);color:var(--txt);}
.modal-sub{padding:12px 18px;color:var(--txt-dim);font-size:12px;line-height:1.6;}
.var-list{padding:0 18px;display:flex;flex-direction:column;gap:8px;}
.var-item{display:flex;gap:8px;align-items:center;background:var(--bg);box-shadow:var(--nm-out-sm);
  border-radius:10px;padding:9px;}
.var-item input[type=text]{flex:1;background:var(--bg);box-shadow:var(--nm-in-sm);border:none;
  color:var(--txt);border-radius:8px;padding:7px 9px;font-size:12.5px;}
.var-item select{flex:0 0 90px;background:var(--bg);box-shadow:var(--nm-in-sm);border:none;color:var(--txt);
  border-radius:8px;padding:7px;font-size:12.5px;}
.var-item .vi-init{flex:0 0 80px;}
.var-item .vi-del{background:none;border:none;color:var(--red);
  border-radius:8px;padding:7px 10px;cursor:pointer;}
.var-item .vi-del:hover{box-shadow:var(--nm-in-sm);}
.var-add{display:flex;gap:8px;padding:14px 18px;}
.var-add input,.var-add select{background:var(--bg);box-shadow:var(--nm-in-sm);border:none;
  color:var(--txt);border-radius:8px;padding:8px 10px;font-size:12.5px;}
.var-add #newVarName{flex:1;}
.var-add #newVarType{flex:0 0 80px;}
.var-add #newVarInit{flex:0 0 70px;}
.modal-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 18px;border-top:1px solid var(--line);}
.modal-tip{color:var(--txt-dim);font-size:11px;}

/* ===== effect / condition rows in props ===== */
.eff-list{display:flex;flex-direction:column;gap:4px;margin-bottom:6px;}
.eff-item{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--txt-dim);
  background:var(--bg);box-shadow:var(--nm-out-sm);border-radius:8px;padding:6px 9px;}
.eff-item .ei-x{margin-left:auto;background:none;border:none;color:var(--red);cursor:pointer;font-size:13px;border-radius:6px;padding:3px 6px;}
.eff-item .ei-x:hover{box-shadow:var(--nm-in-sm);}
.eff-add{display:flex;gap:6px;margin-bottom:8px;}
.eff-add select,.eff-add input{background:var(--bg);box-shadow:var(--nm-in-sm);border:none;color:var(--txt);
  border-radius:8px;padding:6px 9px;font-size:11.5px;min-width:0;}
.eff-add .ea-var{flex:1;}
.eff-add .ea-op{flex:0 0 64px;}
.eff-add .ea-val{flex:1;}
.eff-add .ea-btn{flex:0 0 auto;}
.cond-row{display:flex;gap:6px;margin-bottom:8px;}
.cond-row select,.cond-row input{background:var(--bg);box-shadow:var(--nm-in-sm);border:none;color:var(--txt);
  border-radius:8px;padding:6px 9px;font-size:11.5px;min-width:0;}
.cond-row .cr-var{flex:1;}
.cond-row .cr-cmp{flex:0 0 72px;}
.cond-row .cr-val{flex:1;}
.sub-label{font-size:11px;color:var(--txt-dim);margin:8px 0 4px;}

/* character sprite editor */
.char-list{display:flex;flex-direction:column;gap:8px;margin-bottom:6px;}
.char-edit{display:flex;align-items:center;gap:10px;background:var(--bg);box-shadow:var(--nm-out-sm);border:none;border-radius:10px;padding:9px;}
.char-thumb{width:46px;height:46px;object-fit:contain;background:var(--bg-2);border-radius:8px;flex:0 0 auto;box-shadow:var(--nm-in-sm);}
.char-ctrls{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0;}
.char-row{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--txt-dim);}
.char-row .cl{width:26px;flex:0 0 auto;}
.char-row input[type=range]{flex:1;min-width:0;accent-color:var(--accent);}
.char-row .cval{width:38px;text-align:right;color:var(--txt);font-variant-numeric:tabular-nums;}
.char-del{margin-left:auto;background:none;border:none;color:var(--red);cursor:pointer;font-size:14px;flex:0 0 auto;border-radius:6px;padding:3px 6px;}
.char-del:hover{box-shadow:var(--nm-in-sm);}

/* ===== scrollbars ===== */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:6px;border:2px solid var(--bg);}
::-webkit-scrollbar-track{background:transparent;}