:root{
  --bg:#081527; --bg2:#0b1f3a; --panel:#0e2647; --panel2:#122e52;
  --ink:#e8f1fa; --ink-dim:#9fb6cd; --line:#1d3c63;
  --cyan:#00d8c8; --orange:#ff9040; --red:#ff6470; --green:#3ddc97;
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;line-height:1.75}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:"SF Mono",Menlo,Consolas,monospace;font-size:.92em;color:#c8e6f5}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.muted{color:var(--ink-dim);font-size:13.5px}
header.site{position:sticky;top:0;background:rgba(8,21,39,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:9}
header.site .wrap{display:flex;align-items:center;gap:20px;height:60px}
.logo{font-weight:700;font-size:19px;color:var(--ink)}
.logo b{color:var(--cyan)}
nav{margin-left:auto;display:flex;gap:18px;flex-wrap:wrap}
nav a{color:var(--ink-dim);font-size:14px}
nav a:hover{color:var(--cyan);text-decoration:none}
.replay-head{padding:44px 0 8px}
.replay-head h1{font-size:clamp(24px,4vw,36px);line-height:1.3;margin:14px 0 10px}
.lead{color:var(--ink-dim);max-width:860px}
.case-note{color:var(--orange);font-size:13.5px;margin-top:10px}
.badge-live{display:inline-block;border:1px solid var(--green);color:var(--green);border-radius:999px;padding:2px 14px;font-size:13px}
.case-switch{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin:26px 0 8px}
.case-tab{text-align:left;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--line);border-radius:12px;padding:16px 18px;color:var(--ink);cursor:pointer;font:inherit;transition:border-color .15s,background .15s}
.case-tab:hover{background:var(--panel2)}
.case-tab[aria-selected="true"]{border-left-color:var(--cyan);background:var(--panel2)}
.case-tab.alert[aria-selected="true"]{border-left-color:var(--orange)}
.case-tab .tab-kicker{display:block;font-size:12.5px;letter-spacing:1.4px;color:var(--ink-dim)}
.case-tab strong{display:block;font-size:17px;margin:2px 0 4px}
.case-tab small{color:var(--ink-dim);font-size:13px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:28px 0}
.fact{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.fact span{display:block;font-size:12.5px;color:var(--ink-dim)}
.fact strong{font-size:19px;font-weight:600;overflow-wrap:anywhere}
.fact.ok strong{color:var(--green)}
.fact.warn strong{color:var(--orange)}
.fact.bad strong{color:var(--red)}
.player{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:26px}
.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.btn{border-radius:8px;padding:8px 20px;font:inherit;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer}
.btn.primary{background:var(--cyan);color:#052018}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.speed{color:var(--ink-dim);font-size:13.5px;display:flex;align-items:center;gap:6px}
.speed select{background:var(--panel2);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:5px 8px;font:inherit;font-size:13.5px}
.counter{margin-left:auto;color:var(--ink-dim);font-size:13.5px}
.counter b{color:var(--ink)}
.progress{height:6px;background:#07101f;border-radius:999px;margin:14px 0 16px;overflow:hidden}
.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .35s ease}
.stages{list-style:none;display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
.stage{flex:0 0 auto;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:13px;color:var(--ink-dim);white-space:nowrap}
.stage.done{color:var(--ink);border-color:#2a6a5f}
.stage.active{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 0 1px rgba(0,216,200,.3)}
.stage.alert{border-color:var(--orange);color:var(--orange)}
.stage.alert.active{box-shadow:0 0 0 1px rgba(255,144,64,.35)}
.stage-grid{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(0,1fr);gap:18px;margin-bottom:34px}
.step-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}
.step-top{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.step-kicker{font-size:12.5px;letter-spacing:1.6px;color:var(--cyan)}
.step-card h2{font-size:21px;margin:8px 0 2px}
.step-sub{color:var(--ink-dim);font-size:14px}
.step-time{margin-left:auto;color:var(--ink-dim);font-size:13px}
.step-bullets{list-style:none;margin:18px 0 0}
.step-bullets li{position:relative;padding-left:20px;margin-bottom:8px;font-size:15px}
.step-bullets li::before{content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--cyan)}
table{width:100%;border-collapse:collapse;margin-top:18px;font-size:13.5px}
th,td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
th{background:var(--panel2);color:var(--ink);font-weight:600}
td{color:var(--ink-dim);overflow-wrap:anywhere}
tr.pass td:last-child{color:var(--green)}
tr.fail td:last-child{color:var(--red)}
.amount{font-variant-numeric:tabular-nums;color:var(--ink)}
.side{display:flex;flex-direction:column;gap:14px}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}
.side-card h3{font-size:15px;margin-bottom:10px}
.side-body{font-size:13.5px;color:var(--ink-dim);max-height:280px;overflow:auto}
.side-row{border-bottom:1px dashed var(--line);padding:7px 0}
.side-row:last-child{border-bottom:0}
.side-row b{color:var(--ink);font-weight:600;display:block;font-size:13.5px}
.side-row code{font-size:12px;word-break:break-all}
.hash{font-family:"SF Mono",Menlo,Consolas,monospace;font-size:12px;color:#8fd0c8;word-break:break-all}
.trace-section,.boundary{padding:34px 0;border-top:1px solid var(--line)}
h2{font-size:23px;margin-bottom:8px}
h2 em{font-style:normal;color:var(--orange);font-size:13.5px;display:block;margin-bottom:4px;letter-spacing:2px}
.trace-table{max-height:460px;overflow:auto;border:1px solid var(--line);border-radius:10px}
.trace-table table{margin:0}
.trace-table thead th{position:sticky;top:0;z-index:1}
.kind{display:inline-block;border:1px solid var(--line);border-radius:5px;padding:1px 7px;font-size:12px;color:var(--ink-dim)}
.kind.AGENT{border-color:#7a4620;color:var(--orange)}
.kind.TOOL{border-color:#2a6a5f;color:var(--cyan)}
.boundary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-top:18px}
.note{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:16px 18px;font-size:14px;color:var(--ink-dim)}
.note b{color:var(--ink);display:block;margin-bottom:6px}
.links{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:14px}
footer{padding:34px 0 60px;color:var(--ink-dim);font-size:13.5px}
@media (max-width:900px){.stage-grid{grid-template-columns:1fr}.side{order:-1}}
.case-tab[aria-selected="true"]{box-shadow:inset 0 0 0 1px rgba(0,216,200,.22)}
.case-tab.alert[aria-selected="true"]{box-shadow:inset 0 0 0 1px rgba(255,144,64,.24)}
@media (max-width:760px){
  header.site .wrap{height:auto;flex-wrap:wrap;gap:6px 16px;padding-top:10px;padding-bottom:10px}
  nav{margin-left:0;width:100%;gap:14px}
  .replay-head{padding:30px 0 4px}
  .step-card{padding:18px}
  .counter{margin-left:0}
  .step-time{margin-left:0}
}
@media (prefers-reduced-motion:reduce){.progress-bar{transition:none}}