:root{
  --bg:#05070d;
  --glass:rgba(14,20,33,.66);
  --line:rgba(130,165,220,.20);
  --fg:#e8eef8;
  --muted:#8fa0ba;
  --accent:#6ea8ff;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{
  background:
    radial-gradient(900px 600px at 25% 8%, rgba(50,100,220,.16), transparent 62%),
    radial-gradient(800px 600px at 80% 85%, rgba(180,60,140,.12), transparent 60%),
    var(--bg);
  color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
#stage{position:fixed;inset:0;z-index:0}
#stage canvas{display:block}

/* ───── 顶部 ───── */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:20;height:64px;
  display:flex;align-items:center;gap:14px;padding:0 16px;
  background:linear-gradient(180deg,rgba(5,7,13,.9),rgba(5,7,13,0));
  pointer-events:none;
}
.topbar > *{pointer-events:auto}
.back{
  font-size:12.5px;color:#9fb4d4;text-decoration:none;white-space:nowrap;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  padding:6px 12px;border-radius:99px;transition:.16s;
}
.back:hover{color:#fff;border-color:rgba(140,180,240,.5);background:rgba(110,168,255,.14)}
.title{flex:1;min-width:0}
.title h1{font-size:17px;font-weight:650;letter-spacing:.4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.title .sub{font-size:11px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:6px;flex:none;font-size:11.5px}
.crumb span{
  cursor:pointer;padding:3px 10px;border-radius:99px;
  color:#6f8199;border:1px solid transparent;transition:.16s;letter-spacing:.5px;
}
.crumb span:hover{color:#cfe2ff;border-color:rgba(110,168,255,.35)}
.crumb span.done{color:#9fb4d4}
.crumb span.on{
  color:#dcebff;background:rgba(110,168,255,.18);
  border-color:rgba(110,168,255,.55);box-shadow:0 0 12px -4px rgba(110,168,255,.9);
}
.crumb i{color:#4a5a72;font-style:normal;font-size:10px}

/* ───── 左栏 ───── */
.left{
  position:fixed;left:12px;top:72px;bottom:12px;width:340px;z-index:18;
  display:flex;flex-direction:column;gap:10px;
}
#infoCard{flex:none;max-height:44vh;display:flex;flex-direction:column;min-height:0}
#infoCard .info-body{flex:1;min-height:0;overflow-y:auto}
#infoCard .info-body::-webkit-scrollbar{width:5px}
#infoCard .info-body::-webkit-scrollbar-thumb{background:rgba(140,180,240,.3);border-radius:3px}

.card{
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--line);border-radius:13px;
  box-shadow:0 16px 44px -24px rgba(0,0,0,.9);
  overflow:hidden;
}
.card-head{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 12px;font-size:11.5px;color:#cddcf0;letter-spacing:.5px;
  border-bottom:1px solid rgba(130,165,220,.13);
}
.lvtag{
  font-size:10px;color:#9fc4ff;border:1px solid rgba(110,168,255,.5);
  border-radius:99px;padding:1px 8px;background:rgba(110,168,255,.12);
}
.mini-btn{
  font-size:10.5px;color:#9fb4d4;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:7px;padding:3px 9px;transition:.14s;
}
.mini-btn:hover{color:#fff;border-color:rgba(140,180,240,.5);background:rgba(110,168,255,.16)}
.mini-btn:disabled{opacity:.4;cursor:not-allowed}

.info-body{padding:11px 12px 12px;font-size:11.5px;color:#a8b8cf;line-height:1.75}
.info-body .empty{color:#6f8199;text-align:center;padding:16px 4px;line-height:1.8}
.lvlead{
  display:flex;align-items:center;gap:6px;font-size:10px;color:#7f92ad;
  letter-spacing:.6px;margin-bottom:7px;
}
.lvlead i{width:5px;height:5px;border-radius:50%;background:#6ea8ff;box-shadow:0 0 8px rgba(110,168,255,.9)}
.pts{margin:7px 0 2px;padding:0;list-style:none}
.pts li{
  position:relative;padding-left:11px;font-size:11px;color:#a8b8cf;line-height:1.7;
}
.pts li+li{margin-top:2px}
.pts li::before{
  content:"";position:absolute;left:1px;top:7px;width:4px;height:4px;border-radius:50%;
  background:#5f9fff;opacity:.85;
}
.info-body .empty span{font-size:10.5px;color:#5c6b82}
.mname{font-size:17px;font-weight:650;color:#eaf1fb;letter-spacing:.5px}
.mformula{font-size:12px;color:#8fb8ff;margin-top:2px;font-variant-numeric:tabular-nums}
.mrow{display:flex;gap:8px;margin-top:9px;flex-wrap:wrap}
.chip{
  font-size:10px;color:#9fc4ff;border:1px solid rgba(110,168,255,.35);
  border-radius:99px;padding:2px 8px;background:rgba(110,168,255,.09);
}
.msec{margin-top:11px;padding-top:10px;border-top:1px dashed rgba(130,165,220,.16)}
.msec-t{font-size:10px;color:#7f92ad;letter-spacing:1.2px;margin-bottom:4px}
.msec-b{font-size:11.5px;color:#b6c6dd;line-height:1.7}
.kv{display:flex;justify-content:space-between;gap:10px;margin-top:3px}
.kv .k{color:#7f92ad;font-size:11px}
.kv .v{color:#dbe6f6;font-size:11.5px;text-align:right}
.atomlist{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}
.atomchip{
  display:inline-flex;align-items:center;gap:5px;font-size:10.5px;color:#c9d7ea;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:8px;padding:3px 7px;cursor:pointer;transition:.14s;
}
.atomchip:hover{border-color:rgba(140,180,240,.55);color:#fff}
.atomchip.on{border-color:#6ea8ff;background:rgba(110,168,255,.18);color:#e2eeff}
.atomchip i{width:8px;height:8px;border-radius:50%;display:block;flex:none}

/* 对话 */
.chat{flex:1;display:flex;flex-direction:column;min-height:120px}
.msgs{flex:1;min-height:0;overflow-y:auto;padding:9px 11px;display:flex;flex-direction:column;gap:7px}
.msgs::-webkit-scrollbar{width:5px}
.msgs::-webkit-scrollbar-thumb{background:rgba(140,180,240,.3);border-radius:3px}
.msg{font-size:11.5px;line-height:1.65;max-width:92%}
.msg.u{align-self:flex-end;background:rgba(110,168,255,.18);border:1px solid rgba(110,168,255,.35);color:#dcebff;padding:6px 10px;border-radius:10px 10px 3px 10px}
.msg.a{align-self:flex-start;color:#a8b8cf;background:rgba(255,255,255,.04);border:1px solid rgba(130,165,220,.14);padding:6px 10px;border-radius:10px 10px 10px 3px}
.msg.a b{color:#ffffff;font-weight:700}
.msg.sys{align-self:center;font-size:10.5px;color:#6f8199;text-align:center}
.msg.err{align-self:stretch;font-size:11px;color:#ffb4b4;background:rgba(255,80,80,.1);border:1px solid rgba(255,80,80,.3);padding:6px 10px;border-radius:9px}

.composer{display:flex;gap:7px;flex:none}
.composer input{
  flex:1;min-width:0;background:var(--glass);border:1px solid var(--line);
  border-radius:10px;padding:9px 12px;color:#e8eef8;font-size:12.5px;
  outline:none;transition:.16s;backdrop-filter:blur(12px);
}
.composer input:focus{border-color:rgba(110,168,255,.6);box-shadow:0 0 0 3px rgba(110,168,255,.12)}
.composer input::placeholder{color:#6f8199}
.composer button{
  flex:none;padding:0 16px;border-radius:10px;cursor:pointer;font-size:12.5px;
  color:#0a1220;font-weight:600;border:1px solid rgba(110,168,255,.6);
  background:linear-gradient(180deg,#9cc4ff,#6ea8ff);transition:.16s;
}
.composer button:hover{filter:brightness(1.08)}
.composer button:disabled{opacity:.45;cursor:not-allowed;filter:none}

/* ───── 右栏控制面板 ───── */
.panel{
  position:fixed;right:12px;top:72px;z-index:19;width:272px;
  max-height:calc(100vh - 84px);
  display:flex;flex-direction:column;
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--line);border-radius:13px;
  box-shadow:0 18px 50px -20px rgba(0,0,0,.9);
  overflow:hidden;
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:6px;
  padding:10px 12px;font-size:12px;color:#cddcf0;letter-spacing:.5px;
  border-bottom:1px solid rgba(130,165,220,.13);flex:none;
}
.hbtns{display:flex;gap:5px}
.icbtn{
  width:22px;height:22px;border-radius:6px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:#9fb4d4;cursor:pointer;font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;padding:0;transition:.14s;
}
.icbtn:hover{color:#fff;border-color:rgba(140,180,240,.45)}
.icbtn.on{color:#d8e8ff;border-color:rgba(110,168,255,.6);background:rgba(110,168,255,.2);box-shadow:0 0 10px -2px rgba(110,168,255,.8)}
.panel-body{padding:10px 12px 8px;flex:1;min-height:0;overflow-y:auto}
.panel-body::-webkit-scrollbar{width:5px}
.panel-body::-webkit-scrollbar-thumb{background:rgba(140,180,240,.35);border-radius:3px}
.panel.collapsed .panel-body{display:none}
.panel.collapsed{width:auto;min-width:130px}

.group{margin-bottom:10px}
.group-title{font-size:10.5px;color:#7f92ad;letter-spacing:1.4px;margin-bottom:6px}
.ctrl{display:block;margin-bottom:8px}
.ctrl .lab{display:flex;justify-content:space-between;align-items:baseline;font-size:11.5px;color:#b6c6dd;margin-bottom:6px}
.ctrl .lab em{font-style:normal;color:#8fb8ff;font-variant-numeric:tabular-nums;font-size:11px}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:3px;border-radius:99px;
  background:linear-gradient(90deg,rgba(110,168,255,.75),rgba(110,168,255,.18));
  outline:none;cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;
  background:#cfe2ff;border:2px solid #5b8fe0;box-shadow:0 0 10px rgba(110,168,255,.8);cursor:pointer;
}
.seg{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;margin-bottom:8px}
.seg button{flex:1;padding:6px 0;font-size:11.5px;cursor:pointer;border:0;background:rgba(255,255,255,.03);color:#8fa0ba;transition:.14s}
.seg button.on{background:rgba(110,168,255,.2);color:#dcebff}
.tg-row{display:flex;flex-wrap:wrap;gap:5px}
.tg{
  font-size:11px;padding:4px 8px;border-radius:8px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:#8fa0ba;transition:.14s;
}
.tg.on{background:rgba(110,168,255,.16);border-color:rgba(110,168,255,.55);color:#d8e8ff}
.tg:hover{border-color:rgba(140,180,240,.5)}
.note{font-size:10.5px;color:#6f8199;line-height:1.5}

/* 层级提示 */
.lvhint{
  position:fixed;left:50%;bottom:20px;transform:translateX(-50%);
  z-index:16;font-size:11px;color:#8fa0ba;letter-spacing:.5px;
  background:rgba(14,20,33,.7);border:1px solid var(--line);
  border-radius:99px;padding:6px 14px;opacity:0;transition:opacity .3s;
  pointer-events:none;backdrop-filter:blur(10px);
}
.lvhint.show{opacity:1}

/* 思考中：只在画布中间显示一枚胶囊，不遮挡全屏 */
.stage-loading{
  position:fixed;left:50%;top:50%;transform:translate(-50%,-50%) scale(.96);
  z-index:15;display:flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:99px;
  background:rgba(12,18,30,.82);border:1px solid rgba(130,165,220,.30);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 12px 34px -18px rgba(0,0,0,.9);
  font-size:12px;color:#b9c9e0;letter-spacing:.4px;
  opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.stage-loading.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
.dots{display:inline-flex;gap:4px}
.dots i{
  width:5px;height:5px;border-radius:50%;background:#6ea8ff;display:block;
  animation:dotBounce 1.1s infinite ease-in-out;
}
.dots i:nth-child(2){animation-delay:.16s;background:#9cc4ff}
.dots i:nth-child(3){animation-delay:.32s;background:#cfe2ff}
@keyframes dotBounce{
  0%,60%,100%{transform:translateY(0);opacity:.45}
  30%{transform:translateY(-4px);opacity:1}
}

/* 加载 */
.loading{
  position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;gap:12px;
  background:rgba(5,7,13,.86);color:#8fa0ba;font-size:12.5px;
  transition:opacity .3s;backdrop-filter:blur(6px);
}
.loading.hide{opacity:0;pointer-events:none}
.loading.hide .spin{animation:none}
.spin{width:18px;height:18px;border-radius:50%;border:2px solid rgba(110,168,255,.25);border-top-color:#6ea8ff;animation:sp .8s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

/* ───── 响应式 ───── */
@media (max-width:1100px){
  .left{width:290px}
}
@media (max-width:900px){
  .topbar{height:56px;padding:0 10px;gap:8px}
  .title h1{font-size:15px}
  .title .sub{display:none}
  .crumb{font-size:10.5px}
  .crumb span{padding:2px 7px}
  .left{
    left:8px;right:8px;width:auto;top:auto;bottom:8px;height:46vh;
  }
  .chat{max-height:32vh}
  .panel{
    left:8px;right:8px;width:auto;top:60px;max-height:38vh;
  }
  .panel.collapsed{width:auto;min-width:0}
  .lvhint{bottom:auto;top:60px}
}