:root{
  --ink:#363636; --ink-2:#4a4a4a; --muted:#7a7a7a; --line:#e6e6e6; --bg:#ffffff; --bg-alt:#f7f7f8;
  --link:#3273dc; --accent:#3273dc; --accent-soft:#eaf1fc; --ours:#fff6e0; --ours-line:#f2cf7a; --danger:#d23b3b;
  --radius:12px; --shadow:0 1px 3px rgba(0,0,0,.06),0 6px 20px -12px rgba(0,0,0,.18);
  --sans:"Noto Sans",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --grad:linear-gradient(90deg,#f97316 0%,#ec4899 34%,#8b5cf6 68%,#3b82f6 100%);
  --grad-soft:linear-gradient(90deg,rgba(249,115,22,.55),rgba(236,72,153,.55),rgba(139,92,246,.55),rgba(59,130,246,.55));
  --display:"Bricolage Grotesque","Noto Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;font-size:16px}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
img,video{display:block;max-width:100%}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.container.narrow,.narrow{max-width:820px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;font-weight:700}
h2{font-size:1.9rem;text-align:center;margin-bottom:.9em;position:relative;padding-bottom:14px}
h2::after{content:"";position:absolute;left:50%;bottom:0;width:56px;height:4px;border-radius:999px;background:var(--grad);transform:translateX(-50%)}
h3{font-size:1.08rem}
.section{padding:64px 0}
.section.alt{background:var(--bg-alt)}
.lead{font-size:1.04rem;color:var(--ink-2);max-width:900px;margin:0 auto 6px}
.lead.narrow{max-width:820px;text-align:center}
.muted{color:var(--muted)}
.todo{display:inline-block;padding:0 .45em;border:1.5px dashed var(--danger);border-radius:6px;color:var(--danger);font-weight:600;font-size:.9em}

/* ================= HERO ================= */
.hero{padding:56px 0 48px;text-align:center}
.hero-inner{max-width:980px;margin-bottom:38px}
.title{margin:0 auto 14px;max-width:900px}
.title-main{display:inline-block;font-family:var(--display);font-size:clamp(3rem,7vw,5.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.02;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;padding:0 .04em .08em}
.title-sub{display:block;font-size:clamp(1.05rem,2vw,1.4rem);font-weight:500;color:var(--ink-2);margin-top:12px;letter-spacing:-.005em}
.tagline{font-size:1.08rem;color:var(--muted);margin:0 0 10px}
.venue{font-size:1rem;font-weight:600;color:var(--ink-2);margin:0 0 18px}
.authors{font-size:1.15rem;line-height:1.7}
.author a{color:var(--link)}
.authors sup{font-size:.62em;margin-left:1px;color:var(--ink-2)}
.affils{font-size:1.02rem;color:var(--ink-2);margin-top:4px}
.affils sup{font-size:.7em;margin-right:1px}
.affils.note{font-size:.88rem;color:var(--muted);margin-top:6px}
.links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:24px 0 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:999px;background:#363636;color:#fff;font-weight:600;font-size:.95rem;transition:background .15s;border:1px solid #363636}
.btn:hover{background:#111;text-decoration:none}
.btn .ico{width:18px;height:18px}
.btn .ico-arxiv{width:auto;font-family:Georgia,serif;font-size:.85em;font-weight:700;letter-spacing:-.02em;color:#ffb3b3}
.btn.disabled{background:#fff;color:#9a9a9a;border-color:#ddd;cursor:not-allowed}
.btn.disabled:hover{background:#fff}
.btn.disabled .ico{opacity:.45;filter:grayscale(1)}
.btn.disabled .ico-arxiv{color:#bbb}

/* ================= STAGE ================= */
.stage{position:relative;display:grid;grid-template-columns:1.05fr 220px 1.5fr;align-items:center;border:1.5px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad-soft) border-box;border-radius:20px;padding:30px 34px;box-shadow:var(--shadow);text-align:left}
.zone{min-width:0}
.zone-label{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.zone-label .dur{font-family:var(--mono);font-weight:500;letter-spacing:0;text-transform:none;color:var(--ink-2);background:#f0f0f2;padding:1px 8px;border-radius:6px}

/* fan of reference cards */
.fan{position:relative;height:200px;margin:4px 0 16px}
.card-ref{position:absolute;left:50%;top:50%;width:128px;height:128px;margin:-64px 0 0 -64px;border-radius:14px;object-fit:cover;border:3px solid #fff;box-shadow:0 8px 24px -8px rgba(0,0,0,.35),0 0 0 1px rgba(0,0,0,.06);opacity:0;transform:translate(0,0) scale(.5);transition:transform .75s var(--ease),opacity .5s ease,filter .5s ease;will-change:transform,opacity}
.card-ref.notrans{transition:none}
.card-ref.ghost{opacity:.4;filter:saturate(.5)}
.bubble{position:relative;background:var(--bg-alt);border:1px solid var(--line);border-radius:14px;padding:11px 14px;font-size:.92rem;line-height:1.5;color:var(--ink-2);min-height:86px;transition:transform .6s var(--ease),opacity .5s ease;transform-origin:100% 50%}
.bubble.notrans{transition:none}
.bubble.sent{opacity:0;transform:translateX(40%) scale(.5)}
.bubble.ghost{opacity:.5}
.bubble-k{display:block;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.bubble .caret{display:inline-block;width:2px;height:1em;background:var(--accent);vertical-align:-2px;margin-left:2px;animation:blink 1s steps(1) infinite}
.bubble.done .caret,.bubble.sent .caret,.bubble.ghost .caret{display:none}
@keyframes blink{50%{opacity:0}}

/* node */
.zone-node{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:250px;gap:10px}
.zone-node::before,.zone-node::after{content:"";position:absolute;top:calc(50% - 14px);height:2px;width:calc(50% - 70px);background:repeating-linear-gradient(90deg,#d9d9de 0 6px,transparent 6px 12px)}
.zone-node::before{left:0}
.zone-node::after{right:0}
.zone-node.flow-in::before{background:repeating-linear-gradient(90deg,#ec4899 0 8px,transparent 8px 16px);animation:flowr .7s linear infinite}
.zone-node.flow-out::after{background:repeating-linear-gradient(90deg,#8b5cf6 0 8px,transparent 8px 16px);animation:flowr .7s linear infinite}
@keyframes flowr{to{background-position:16px 0}}
.node{position:relative;width:132px;height:132px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.node-core{position:relative;z-index:2;width:116px;height:116px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px -14px rgba(0,0,0,.35);transition:transform .4s var(--ease)}
.node-icon{width:66px;height:66px}
.node.active .node-core{transform:scale(1.07)}
.node-label{font-family:var(--display);font-weight:800;font-size:1.25rem;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;padding:0 .1em}
.ring{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 0deg,#f97316,#ec4899,#8b5cf6,#3b82f6,#f97316);opacity:0;z-index:1;animation:spin 3s linear infinite;transition:opacity .4s}
.node.active .ring{opacity:1}
@keyframes spin{to{transform:rotate(360deg)}}
.pulse{position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(139,92,246,.6);opacity:0;z-index:0}
.node.active .pulse{animation:pulse 1.4s ease-out 2}
@keyframes pulse{0%{transform:scale(.9);opacity:.8}100%{transform:scale(1.4);opacity:0}}

/* output clip */
.clip{position:relative;aspect-ratio:832/480;background:#111;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.clip-hero{border-radius:14px;box-shadow:0 14px 40px -20px rgba(0,0,0,.45);opacity:0;transform:scale(.95) translateX(12px);transition:opacity .6s ease,transform .7s var(--ease)}
.clip-hero.show{opacity:1;transform:none}
.clip-wrap{position:relative}
.stamp{position:absolute;right:14px;bottom:-16px;display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px 5px 5px;font-size:.8rem;font-weight:600;color:var(--ink-2);box-shadow:0 8px 24px -12px rgba(0,0,0,.35);opacity:0;transform:translateY(8px) scale(.96);transition:opacity .45s ease,transform .5s var(--ease)}
.stamp.show{opacity:1;transform:none}
.stamp img{width:26px;height:26px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.stamp b{color:var(--ink)}
.stamp-check{width:16px!important;height:16px!important;border-radius:0!important;border:0!important}
.clip video,.clip img.frame{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.clip img.frame{opacity:0;transition:opacity .45s ease}
.clip img.frame.show{opacity:1}
.clip .tlabel{position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.65);color:#fff;font-family:var(--mono);font-size:.76rem;padding:3px 8px;border-radius:6px}
.clip .badge{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.94);color:var(--ink-2);font-size:.7rem;font-weight:700;padding:3px 9px;border-radius:999px;border:1px solid var(--line)}
.clip .badge.warn{color:#9a3412;background:#fff7ed;border-color:#fed7aa}
.clip:not(.clip-hero) .badge{font-size:.64rem;padding:2px 7px;top:6px;right:6px}
.clip .bar{position:absolute;left:0;bottom:0;height:3px;background:var(--grad);width:0;transition:width .45s linear}
.clip.empty{display:flex;align-items:center;justify-content:center;color:#999;font-size:.85rem;text-align:center;padding:16px;background:repeating-linear-gradient(45deg,#1b1b1b 0 10px,#232323 10px 20px)}

.stage-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;padding:0 4px;text-align:left}
.tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px 5px 5px;font:inherit;font-size:.84rem;font-weight:600;color:var(--ink-2);cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:all .2s;position:relative;overflow:hidden}
.tab img{width:26px;height:26px;border-radius:50%;object-fit:cover}
.tab:hover{border-color:#bbb}
.tab.active{background:#363636;color:#fff;border-color:#363636}
.tab .dur{font-family:var(--mono);font-weight:500;opacity:.65;font-size:.76em}
.tab.active::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--grad);animation:tabprog var(--cycle,14s) linear forwards}
.tab.active.paused::after{animation:none;width:0}
@keyframes tabprog{to{width:100%}}
.stage-caption{font-size:.86rem;color:var(--muted);max-width:520px}
@media (max-width:980px){
  .stage{grid-template-columns:1fr;padding:22px}
  .zone-node{min-height:190px}
  .zone-node::before,.zone-node::after{width:2px;height:calc(50% - 80px);left:50%;top:auto}
  .zone-node::before{top:0}.zone-node::after{bottom:0}
  .zone-node.flow-in::before,.zone-node.flow-out::after{background:repeating-linear-gradient(180deg,var(--accent) 0 8px,transparent 8px 16px);animation:flowd .7s linear infinite}
  @keyframes flowd{to{background-position:0 16px}}
  .fan{height:170px}.card-ref{width:106px;height:106px;margin:-53px 0 0 -53px}
}

/* ================= RESULT GRIDS ================= */
.example{margin-top:30px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow);overflow:hidden}
.example-head{display:flex;flex-wrap:wrap;gap:14px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);background:#fafafb}
.example-head .refs-mini{display:flex;gap:2px;padding:2px 4px}
.example-head .refs-mini img{width:40px;height:40px;border-radius:6px;object-fit:cover;border:3px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.25);transition:transform .2s}
.example-head .refs-mini img:nth-child(1){transform:rotate(-4deg)}.example-head .refs-mini img:nth-child(2){transform:rotate(3deg)}.example-head .refs-mini img:nth-child(3){transform:rotate(-2deg)}.example-head .refs-mini img:nth-child(4){transform:rotate(4deg)}.example-head .refs-mini img:nth-child(5){transform:rotate(-3deg)}
.example-head .refs-mini:hover img{transform:none}
.example-head .anchor-mini{display:flex;align-items:center;gap:6px;margin-left:6px}
.example-head .anchor-mini img{height:38px;border-radius:8px;border:1px solid var(--line)}
.example-head .k{font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.example-head .prompt{flex:1 1 320px;font-size:.92rem;color:var(--ink-2);font-style:italic}
.vgrid{display:grid;grid-template-columns:repeat(var(--n,3),minmax(0,1fr));gap:12px;padding:16px 20px}
.vcell{min-width:0}
.vname{font-weight:700;font-size:.9rem;line-height:1.25;margin-bottom:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vname small{display:block;font-weight:500;color:var(--muted);font-size:.74rem;margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vcell.ours .vname{color:#8a5a00}
.vcell.ours .clip{border:2px solid transparent;background:linear-gradient(#111,#111) padding-box,var(--grad) border-box}
@media (max-width:1000px){.vgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:640px){.vgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.vname,.vname small{white-space:normal}}

/* ================= MISC ================= */
.figure{margin:28px 0 0}
.figure img{width:100%;border-radius:10px;border:1px solid var(--line);background:#fff}
.figure figcaption{font-size:.88rem;color:var(--muted);margin-top:10px;line-height:1.55}
.figure.small{margin:0}
.split{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center}
.split .lead{text-align:left}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.cards.three{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
@media (max-width:900px){.cards.three{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card p{margin:0;color:var(--ink-2);font-size:.95rem}
.card-step{width:40px;height:40px;border-radius:12px;border:1.5px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad-soft) border-box;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.card-step img{width:24px;height:24px}
.abstract{font-size:1.02rem;color:var(--ink-2);text-align:justify}
.table-wrap{overflow-x:auto;margin:22px auto 8px}
.table-wrap.narrow-tbl{max-width:640px}
.tbl{border-collapse:separate;border-spacing:0;width:100%;font-size:.9rem;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.tbl th,.tbl td{padding:9px 12px;text-align:center;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl tr:last-child td{border-bottom:0}
.tbl th{font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:#fafafb;font-weight:700}
.tbl td:first-child,.tbl th:first-child{text-align:left}
.tbl td{font-variant-numeric:tabular-nums}
.tbl tr.ours td{background:var(--ours)}
.tbl tr.ours td:first-child{font-weight:700}
.tbl u{text-decoration-thickness:1.5px;text-underline-offset:3px}
.tbl-note{font-size:.82rem;color:var(--muted);text-align:center}
.bib{background:#f4f4f5;color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto;font-family:var(--mono);font-size:.85rem;line-height:1.6;margin:0}
.footer{padding:40px 0 56px;color:var(--muted);font-size:.9rem;text-align:center}
.footer p{margin:6px 0}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}