:root{
  --bg:#0b0d10; --panel:#12151a; --panel-2:#171b22; --line:#232833;
  --ink:#e6edf3; --dim:#8b949e; --faint:#5c6570;
  --cyan:#56d4bd; --blue:#6cb6ff; --amber:#e3b341; --red:#ff7b72;
  --green:#3fb950; --purple:#b49cff;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 12% -10%,#14212a 0%,transparent 60%),
                   radial-gradient(700px 400px at 100% 0%,#161a2a 0%,transparent 55%);
  background-attachment:fixed;
}

/* ---------------- 顶栏 ---------------- */
.top{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;border-bottom:1px solid var(--line);
  background:rgba(11,13,16,.82);backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:baseline;gap:10px;font-family:var(--mono)}
.mark{color:var(--cyan);letter-spacing:-2px}
.name{font-size:17px;font-weight:600;letter-spacing:.5px}
.sub{color:var(--dim);font-size:12.5px;font-family:var(--sans)}
.topmeta{display:flex;gap:8px;align-items:center}
.chip{
  font-family:var(--mono);font-size:11.5px;color:var(--dim);
  border:1px solid var(--line);border-radius:999px;padding:3px 10px;
  background:var(--panel);text-decoration:none;white-space:nowrap;
}
.chip.ghost{color:var(--faint)}
.chip.live{color:var(--cyan);border-color:#1d4a45;background:#0f1f1e}

/* ---------------- 布局 ---------------- */
.wrap{
  display:grid;grid-template-columns:340px minmax(0,1fr);gap:18px;
  max-width:1440px;margin:0 auto;padding:18px 22px 40px;align-items:start;
}
.side{display:flex;flex-direction:column;gap:12px;position:sticky;top:74px}
.stage{min-width:0}

/* ---------------- 卡片 ---------------- */
.card{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:12px;padding:14px 14px 12px;
  box-shadow:0 1px 0 rgba(255,255,255,.02) inset;
}
.card h3{
  margin:0 0 10px;font-size:12px;font-weight:600;color:var(--dim);
  letter-spacing:.6px;text-transform:uppercase;display:flex;align-items:center;gap:8px;
}
.card h3 i{
  font-style:normal;width:17px;height:17px;flex:none;border-radius:5px;
  background:#1d2530;color:var(--cyan);font-size:10.5px;display:grid;place-items:center;
  font-family:var(--mono);
}
.card h3 em{font-style:normal;color:var(--faint);text-transform:none;letter-spacing:0;font-weight:400}

/* ---------------- 拖拽区 ---------------- */
.drop{
  border:1px dashed #2b3442;border-radius:10px;padding:18px 12px;text-align:center;
  cursor:pointer;transition:.16s;background:#0e1218;color:var(--dim);font-size:12.5px;
}
.drop:hover{border-color:#3a4a5e;background:#10161d}
.drop.over{border-color:var(--cyan);background:#0f1c1b;color:var(--cyan)}
.drop-inner{pointer-events:none}
.drop-icon{font-size:20px;color:var(--faint);margin-bottom:4px}
.drop-inner span{font-size:11.5px;color:var(--faint)}
.samples{display:flex;flex-wrap:wrap;gap:6px;margin:9px 0 4px}
.sample{
  font-family:var(--mono);font-size:11px;color:var(--dim);background:#0e1218;
  border:1px solid var(--line);border-radius:7px;padding:3px 8px;cursor:pointer;
  transition:.14s;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.sample:hover{color:var(--cyan);border-color:#264b46}
.sample.on{color:var(--cyan);border-color:#2c5f59;background:#0f1e1d}

/* ---------------- 表单 ---------------- */
.field{display:flex;align-items:center;gap:8px;margin-top:8px}
.field.col{flex-direction:column;align-items:stretch;gap:4px}
.field>span{font-size:11.5px;color:var(--faint);flex:none;width:46px;display:flex;flex-direction:column}
.field.col>span{width:auto;flex-direction:row;gap:6px;align-items:baseline}
.field em{font-style:normal;color:#4b535d;font-size:10.5px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.grid2 .field{margin-top:0}
input[type=text],input:not([type]),textarea{
  width:100%;background:#0c1015;border:1px solid var(--line);border-radius:8px;
  color:var(--ink);font-family:var(--mono);font-size:12px;padding:7px 9px;outline:none;
  transition:.14s;
}
input:focus,textarea:focus{border-color:#2f5b55;box-shadow:0 0 0 3px rgba(86,212,189,.07)}
textarea{resize:vertical;line-height:1.5}
::placeholder{color:#454d57}

/* ---------------- 开关 ---------------- */
.switch{display:flex;align-items:center;gap:9px;cursor:pointer;margin:2px 0 10px}
.switch input{display:none}
.switch .track{
  width:32px;height:18px;border-radius:999px;background:#242b36;position:relative;
  transition:.18s;flex:none;border:1px solid var(--line);
}
.switch .track::after{
  content:"";position:absolute;width:12px;height:12px;border-radius:50%;
  background:#6f7987;top:2px;left:2px;transition:.18s;
}
.switch input:checked+.track{background:#16413c;border-color:#2b6159}
.switch input:checked+.track::after{left:16px;background:var(--cyan)}
.sw-label{font-size:12.5px;color:var(--ink);display:flex;flex-direction:column;line-height:1.35}
.sw-label em{font-style:normal;font-size:10.5px;color:var(--faint)}

.btn{
  width:100%;border:1px solid var(--line);background:#1a212b;color:var(--ink);
  border-radius:9px;padding:9px 12px;font-size:13px;font-family:var(--sans);
  cursor:pointer;transition:.15s;display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn:hover{background:#212a36;border-color:#33404f}
.btn.primary{
  background:linear-gradient(180deg,#1f9e8c,#178274);border-color:#2ab39e;color:#04120f;
  font-weight:600;letter-spacing:.3px;
}
.btn.primary:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.45;cursor:not-allowed;filter:none}
.kbd{font-family:var(--mono);font-size:10px;background:rgba(0,0,0,.22);padding:1px 5px;border-radius:4px;opacity:.75}
.hint{color:var(--faint);font-size:11px;margin:9px 0 0;line-height:1.5}

/* ---------------- 计划 ---------------- */
.plan-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:5px}
.plan-list li{display:flex;gap:8px;font-size:12px;color:var(--dim);align-items:flex-start}
.plan-list li .box{flex:none;width:14px;text-align:center;font-family:var(--mono);font-size:11px;line-height:1.5}
.plan-list li.done{color:#4f5862;text-decoration:line-through;text-decoration-color:#3a424c}
.plan-list li.done .box{color:var(--green)}
.plan-list li.doing{color:var(--ink)}
.plan-list li.doing .box{color:var(--cyan)}

/* ---------------- 过程流 ---------------- */
.trace{display:flex;flex-direction:column;gap:2px;min-height:60vh}
.trace.has-final{min-height:0;padding-bottom:8px}

.empty{
  border:1px solid var(--line);border-radius:14px;padding:36px 30px;background:
  linear-gradient(180deg,rgba(23,27,34,.75),rgba(18,21,26,.6));max-width:640px;margin:26px auto 0;
}
.empty-mark{font-family:var(--mono);color:var(--cyan);letter-spacing:-2px;opacity:.85}
.empty-mark span{color:var(--purple)}
.empty h2{margin:14px 0 6px;font-size:20px;font-weight:600}
.empty p{color:var(--dim);font-size:13px;margin:0 0 14px;max-width:52ch}
.empty-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:7px}
.empty-list li{
  font-size:12.5px;color:var(--dim);border-top:1px solid #1c222b;padding-top:7px;
}
.empty-list b{color:var(--ink);font-weight:600;margin-right:6px}

.ev{animation:rise .22s ease both}
@keyframes rise{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}

.user{
  display:flex;gap:9px;padding:12px 2px 14px;font-size:13.5px;color:var(--ink);
}
.user::before{content:"›";color:var(--cyan);font-family:var(--mono);font-weight:700}

.think{
  color:#9aa4af;font-size:12.5px;padding:3px 0 3px 20px;border-left:1px solid #232b36;
  margin-left:3px;white-space:pre-wrap;
}

.status{
  display:flex;align-items:center;gap:8px;color:var(--faint);
  font-size:11.5px;font-family:var(--mono);padding:5px 0 5px 20px;
}
.spin{
  width:9px;height:9px;border-radius:50%;border:1.5px solid #2b3440;border-top-color:var(--cyan);
  animation:spin .8s linear infinite;flex:none;
}
@keyframes spin{to{transform:rotate(360deg)}}

.tool{
  border:1px solid var(--line);border-radius:10px;background:var(--panel);
  margin:4px 0 6px;overflow:hidden;
}
.tool.running{border-color:#2a3b46}
.tool-h{
  display:flex;align-items:center;gap:9px;padding:8px 11px;background:#141920;
  border-bottom:1px solid #1b212a;font-size:12.5px;
}
.tool-h .dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none;
  box-shadow:0 0 0 3px rgba(86,212,189,.12);
}
.tool.running .tool-h .dot{background:var(--amber);box-shadow:0 0 0 3px rgba(227,179,65,.12);
  animation:pulse 1.1s ease-in-out infinite}
.tool.err .tool-h .dot{background:var(--red);box-shadow:0 0 0 3px rgba(255,123,114,.12)}
@keyframes pulse{50%{opacity:.35}}
.tool-h .label{font-weight:600;color:var(--ink)}
.tool-h code{font-family:var(--mono);font-size:11px;color:#6a7583}
.tool-h .ms{
  margin-left:auto;font-family:var(--mono);font-size:10.5px;color:var(--faint);
  border:1px solid #232b36;border-radius:999px;padding:1px 7px;
}
.tool-b{padding:8px 11px 9px;display:flex;flex-direction:column;gap:3px}
.tool-b .line{
  font-family:var(--mono);font-size:11.5px;color:#a9b4c0;line-height:1.55;
  white-space:pre-wrap;word-break:break-word;
}
.tool-b .line:first-child{color:#c3ccd6}
.tool-b .args{
  font-family:var(--mono);font-size:10.5px;color:#5d6874;border-bottom:1px dashed #1f2630;
  padding-bottom:5px;margin-bottom:3px;word-break:break-all;
}

.ask{
  border:1px solid #3c3320;border-left:3px solid var(--amber);border-radius:10px;
  background:linear-gradient(90deg,#1a1710,#14161b 60%);padding:12px 14px;margin:8px 0;
}
.ask .q{display:flex;gap:8px;font-size:13px;color:#f0e6cf;margin-bottom:10px}
.ask .q::before{content:"?";font-family:var(--mono);color:var(--amber);font-weight:700}
.ask .opts{display:flex;flex-direction:column;gap:6px;margin-bottom:9px}
.ask .opt{
  text-align:left;background:#0f1319;border:1px solid #2c2f38;border-radius:8px;
  padding:7px 10px;font-size:12px;color:#c9d1d9;cursor:pointer;transition:.14s;font-family:var(--sans);
}
.ask .opt:hover{border-color:#5c4c22;background:#161a20;color:#f0e6cf}
.ask .opt .idx{font-family:var(--mono);color:var(--amber);margin-right:7px;font-size:11px}
.ask .row{display:flex;gap:7px}
.ask input{flex:1;font-family:var(--sans)}
.ask .row .btn{width:auto;padding:7px 14px;background:#233042;border-color:#31435c;font-size:12px}
.ask .answered{font-size:12px;color:var(--dim);font-family:var(--mono)}
.ask .answered b{color:var(--green);font-weight:600}

.note{font-size:12px;color:var(--dim);padding:4px 0 4px 20px}
.note.warn{color:var(--amber)}
.note.err{color:var(--red)}

/* ---------------- 结论 ---------------- */
.final{
  margin-top:16px;border:1px solid #26433d;border-radius:14px;overflow:hidden;
  background:linear-gradient(180deg,#0f1a18,#0d1216 40%);
  animation:rise .3s ease both;
}
.final-h{
  display:flex;align-items:center;gap:10px;padding:12px 18px;
  border-bottom:1px solid #1d2b28;background:rgba(20,38,35,.55);
}
.final-h .t{font-size:12px;letter-spacing:.8px;color:var(--cyan);text-transform:uppercase;font-weight:600}
.final-h .meta{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--faint)}
.nums{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#1a2724}
.num{background:#0e1614;padding:16px 18px}
.num .k{font-size:11.5px;color:var(--dim);letter-spacing:.4px}
.num .v{font-family:var(--mono);font-size:26px;color:#eafff9;letter-spacing:-.5px;line-height:1.25}
.num .v small{font-size:12px;color:var(--dim);margin-left:5px;letter-spacing:0}
.num .x{font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:2px}
.facts{display:flex;flex-wrap:wrap;gap:8px;padding:13px 18px;border-bottom:1px solid #1a2422}
.fact{
  font-size:11.5px;color:var(--dim);border:1px solid #20302c;border-radius:999px;
  padding:3px 10px;background:#0d1413;
}
.fact b{color:#d7e7e3;font-weight:600}
.final-b{display:flex;gap:9px;align-items:center;padding:13px 18px}
.final-b .btn{width:auto;padding:8px 16px}
.final-b .btn.primary{background:linear-gradient(180deg,#1f9e8c,#178274);color:#04120f}
.final-b .path{font-family:var(--mono);font-size:11px;color:var(--faint);margin-left:auto;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:50%}

/* ---------------- 结论文本 ---------------- */
.report{padding:6px 18px 16px;font-size:13px;color:#c6cfd9}
.report h2{font-size:14px;margin:14px 0 6px;color:var(--ink)}
.report p{margin:6px 0}
.report strong{color:#fff;font-weight:600}
.report code{font-family:var(--mono);font-size:11.5px;background:#151b22;border:1px solid #232b36;
  padding:1px 5px;border-radius:5px;color:var(--cyan)}
.report ul,.report ol{margin:6px 0;padding-left:20px}
.report li{margin:3px 0;color:#b9c3ce}
.report table{border-collapse:collapse;margin:8px 0;font-size:12.5px}
.report th,.report td{border:1px solid #232b36;padding:5px 10px;text-align:left}
.report th{background:#151b22;color:var(--dim);font-weight:600}
.report hr{border:0;border-top:1px solid #1e252f;margin:12px 0}

/* ---------------- 响应 ---------------- */
@media (max-width:1020px){
  .wrap{grid-template-columns:1fr}
  .side{position:static;order:2}
  .stage{order:1}
  .nums{grid-template-columns:1fr}
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#232c37;border-radius:8px;border:3px solid var(--bg)}
::-webkit-scrollbar-track{background:transparent}