/* ==========================================================================
   SplitMoE project page
   ========================================================================== */

:root {
  --bg: #05060b;
  --bg-2: #0a0c16;
  --panel: rgba(255, 255, 255, 0.035);
  --border: rgba(255, 255, 255, 0.08);
  --border-2: rgba(255, 255, 255, 0.14);
  --text: #e9ecf5;
  --muted: #a3abbf;
  --dim: #6d758b;

  --sem: #2ee6c5;
  --sem-2: #38bdf8;
  --gen: #ffb547;
  --gen-2: #ff7a59;
  --violet: #a78bfa;
  --pink: #f472b6;
  --gold: #ffd479;

  --grad-sem: linear-gradient(90deg, #2ee6c5, #38bdf8);
  --grad-gen: linear-gradient(90deg, #ffb547, #ff7a59);
  --grad-main: linear-gradient(90deg, #2ee6c5 0%, #38bdf8 28%, #a78bfa 58%, #ff7a59 100%);

  --radius: 20px;
  --radius-sm: 12px;
  --maxw: 1200px;
  --ease: cubic-bezier(.2, .75, .2, 1);

  --font-sans: "Albert Sans", system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: rgba(46, 230, 197, 0.3); color: #fff; }

.c-sem { color: var(--sem); }
.c-gen { color: var(--gen); }

.grad {
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hl-sem, .hl-gen {
  font-weight: 600;
  padding: 0 .28em;
  border-radius: 6px;
  white-space: nowrap;
}
.hl-sem { color: var(--sem); background: rgba(46, 230, 197, 0.1); box-shadow: inset 0 0 0 1px rgba(46, 230, 197, 0.22); }
.hl-gen { color: var(--gen); background: rgba(255, 181, 71, 0.1); box-shadow: inset 0 0 0 1px rgba(255, 181, 71, 0.22); }

/* ---------- ambient background ---------- */
.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
}
.bg-aurora span {
  position: absolute;
  width: 70vmax;
  height: 70vmax;
  border-radius: 50%;
  animation: drift 36s ease-in-out infinite alternate;
  will-change: transform;
}
.bg-aurora span:nth-child(1) { top: -30vmax; left: -25vmax; background: radial-gradient(circle, rgba(20, 184, 166, 0.20), transparent 62%); }
.bg-aurora span:nth-child(2) { top: 25vh; right: -30vmax; background: radial-gradient(circle, rgba(124, 58, 237, 0.16), transparent 62%); animation-duration: 44s; }
.bg-aurora span:nth-child(3) { bottom: -40vmax; left: 15vw; background: radial-gradient(circle, rgba(234, 88, 12, 0.12), transparent 62%); animation-duration: 52s; }
@keyframes drift { to { transform: translate3d(9vmax, 7vmax, 0) scale(1.12); } }

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 85%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 85%);
}

.cursor-glow {
  position: fixed;
  left: 0;
  top: 0;
  width: 520px;
  height: 520px;
  margin: -260px 0 0 -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 230, 197, 0.07), rgba(167, 139, 250, 0.04) 40%, transparent 70%);
  pointer-events: none;
  z-index: -1;
  opacity: 0;
  transition: opacity .6s;
  will-change: transform;
}
.cursor-glow.on { opacity: 1; }

.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 120;
  pointer-events: none;
}
.scroll-progress i {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: var(--grad-main);
  box-shadow: 0 0 12px rgba(46, 230, 197, 0.7);
}

/* ---------- layout ---------- */
.container { width: min(var(--maxw), calc(100% - 48px)); margin-inline: auto; }
.section { position: relative; padding: 120px 0; }
.section + .section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: min(var(--maxw), calc(100% - 48px));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.09), transparent);
}

.section-head { max-width: 880px; margin-bottom: 48px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font: 600 .76rem/1 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sem);
}
.eyebrow::before { content: ""; width: 30px; height: 1px; background: currentColor; box-shadow: 0 0 8px currentColor; }
.eyebrow-sm { font-size: .68rem; margin-bottom: 10px; }
.eyebrow-sm::before { width: 18px; }

h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.01em; }
h2 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); line-height: 1.08; margin: 16px 0 18px; font-weight: 450; text-wrap: balance; }
h3 { font-size: 1.4rem; line-height: 1.25; margin: 0 0 10px; font-weight: 500; }
h4 { font-size: 1.08rem; margin: 0 0 6px; font-weight: 550; }
.lead { font-size: 1.12rem; color: var(--muted); margin: 0; }

.card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.container > .card + .card,
.container > .card + .subhead { margin-top: 28px; }

/* pointer spotlight */
.spot { overflow: hidden; }
.spot::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(46, 230, 197, 0.09), transparent 45%);
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}
.spot:hover::before { opacity: 1; }

/* reveal on scroll (only when JS is running) */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- buttons & controls ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-2);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform .25s var(--ease), border-color .25s, background .25s, box-shadow .25s;
  cursor: pointer;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { transform: translateY(-2px); border-color: rgba(46, 230, 197, 0.55); background: rgba(46, 230, 197, 0.08); box-shadow: 0 10px 34px -10px rgba(46, 230, 197, 0.55); }
.btn-primary { color: #04131a; background: var(--grad-sem); border-color: transparent; box-shadow: 0 10px 40px -12px rgba(46, 230, 197, 0.7); }
.btn-primary:hover { background: var(--grad-sem); filter: brightness(1.08); border-color: transparent; }
.btn[data-soon] { opacity: .62; cursor: default; }
.btn[data-soon]:hover { transform: none; box-shadow: none; border-color: var(--border-2); background: rgba(255, 255, 255, 0.05); }
.btn[data-soon]::after {
  content: "soon";
  position: absolute;
  top: -8px;
  right: -4px;
  padding: 3px 6px;
  border-radius: 6px;
  font: 600 .58rem/1 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #1c1405;
  background: var(--gen);
}
.btn-ghost { background: transparent; }
.btn-sm { padding: 8px 14px; font-size: .86rem; }

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border);
}
.seg button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 .84rem/1 var(--font-sans);
  padding: 9px 15px;
  border-radius: 999px;
  cursor: pointer;
  transition: color .2s, background .25s, box-shadow .25s;
  white-space: nowrap;
}
.seg button:hover { color: var(--text); }
.seg button.active { color: #fff; background: rgba(255, 255, 255, 0.1); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14), 0 4px 18px -6px rgba(46, 230, 197, 0.45); }
.seg button:disabled { opacity: .35; cursor: not-allowed; }

.chip-btn {
  appearance: none;
  border: 1px solid var(--border-2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: 600 .8rem/1 var(--font-mono);
  padding: 9px 13px;
  border-radius: 10px;
  cursor: pointer;
  transition: background .2s, border-color .2s;
  white-space: nowrap;
}
.chip-btn:hover { background: rgba(46, 230, 197, 0.1); border-color: rgba(46, 230, 197, 0.5); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 14px;
  left: 50%;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 22px;
  width: min(1240px, calc(100% - 28px));
  padding: 10px 14px 10px 18px;
  transform: translateX(-50%);
  border-radius: 16px;
  border: 1px solid transparent;
  transition: background .35s, border-color .35s, box-shadow .35s;
}
.nav.scrolled {
  background: rgba(8, 10, 18, 0.72);
  border-color: var(--border);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 20px 50px -30px rgba(0, 0, 0, 0.9);
}
.nav-brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; font: 600 1.2rem/1 var(--font-display); }
.brand-mark { width: 22px; height: 22px; }
.nav-brand .s, .footer-brand .s { color: var(--sem); }
.nav-brand .m, .footer-brand .m { color: var(--gen); }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  position: relative;
  padding: 7px 11px;
  border-radius: 9px;
  text-decoration: none;
  color: var(--muted);
  font-size: .88rem;
  font-weight: 500;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav-links a.active { color: #fff; }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-sem);
}
.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 58% 52% at 50% 47%, rgba(5, 6, 11, 0.9) 0%, rgba(5, 6, 11, 0.62) 46%, rgba(5, 6, 11, 0) 78%),
    linear-gradient(to bottom, rgba(5, 6, 11, 0.3), transparent 20%, transparent 72%, var(--bg));
}
.hero-content { max-width: 1120px; padding: 130px 24px 120px; text-align: center; }

.hero-badges { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; animation: rise 1s .23s var(--ease) both; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: 999px;
  font: 600 .92rem/1 var(--font-sans);
  letter-spacing: .01em;
  border: 1px solid var(--border-2);
  background: rgba(255, 255, 255, 0.05);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.pill-venue { color: #d9ddff; }
.pill-spotlight {
  color: #1f1605;
  border-color: transparent;
  background: linear-gradient(110deg, #ffc65c 0%, #ffd98a 35%, #fff4d6 50%, #ffd98a 65%, #ffb547 100%);
  background-size: 250% 100%;
  animation: shine 3.6s linear infinite;
  box-shadow: 0 0 28px rgba(255, 196, 92, 0.45), 0 0 0 1px rgba(255, 220, 150, 0.6) inset;
}
.pill-spotlight .spark { animation: spin 6s linear infinite; display: inline-block; }
@keyframes shine { from { background-position: 125% 0; } to { background-position: -125% 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

.hero-title { margin: 0 0 28px; font-weight: 400; }
.hero-title .t1 {
  display: block;
  font-size: clamp(2.7rem, 7vw, 6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: #fff;
  text-wrap: balance;
  text-shadow: 0 10px 60px rgba(0, 0, 0, 0.6);
  animation: rise 1.1s .08s var(--ease) both;
}
.hero-title .t2 {
  display: block;
  margin-top: 20px;
  font-size: clamp(1.2rem, 2.3vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 0;
  color: #c9cfdf;
  animation: rise 1.1s .18s var(--ease) both;
}
.splitmoe { font-weight: 600; white-space: nowrap; }
.splitmoe .s, .splitmoe .m { -webkit-background-clip: text; background-clip: text; color: transparent; }
.splitmoe .s { background-image: var(--grad-sem); }
.splitmoe .m { background-image: var(--grad-gen); }

.authors, .affiliations { list-style: none; padding: 0; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: center; }
.authors { gap: 6px 22px; max-width: 920px; font-size: 1.07rem; font-weight: 500; animation: rise 1.1s .28s var(--ease) both; }
.authors li { white-space: nowrap; }
.authors sup { margin-left: 2px; font: 600 .66em var(--font-mono); color: var(--sem); }
.authors .env, .corresponding .env { color: var(--gen); margin-left: 2px; }
.affiliations { margin-top: 12px; gap: 4px 24px; color: var(--muted); font-size: .96rem; animation: rise 1.1s .36s var(--ease) both; }
.affiliations sup { margin-right: 3px; font: 600 .7em var(--font-mono); color: var(--sem); }
.corresponding { margin: 8px 0 0; font-size: .84rem; color: var(--dim); animation: rise 1.1s .42s var(--ease) both; }

.hero-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 34px; animation: rise 1.1s .5s var(--ease) both; }

.hero-status, .hero-replay {
  position: absolute;
  bottom: 26px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border-radius: 11px;
  font: 500 .76rem/1 var(--font-mono);
  color: var(--muted);
  background: rgba(5, 6, 11, 0.55);
  border: 1px solid var(--border);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.hero-status { left: 26px; }
.hero-status .dot { width: 8px; height: 8px; border-radius: 50%; background: #ff6b6b; box-shadow: 0 0 10px #ff6b6b; transition: background .4s, box-shadow .4s; }
.hero-status .dot.ok { background: var(--sem); box-shadow: 0 0 10px var(--sem); }
.hero-replay { right: 26px; cursor: pointer; transition: color .2s, border-color .2s; }
.hero-replay:hover { color: var(--text); border-color: rgba(46, 230, 197, 0.5); }

.scroll-cue {
  position: absolute;
  bottom: 26px;
  left: 50%;
  width: 26px;
  height: 42px;
  margin-left: -13px;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  border-radius: 14px;
}
.scroll-cue span { position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: var(--sem); animation: cue 1.8s infinite; }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- showreel ---------- */
.showreel { position: relative; padding: 30px 0 110px; overflow: hidden; }
.reel-head { text-align: center; }
.reel-head .eyebrow::after { content: ""; width: 30px; height: 1px; background: currentColor; box-shadow: 0 0 8px currentColor; }
.reel-title { margin-top: 14px; }
.reel-stage {
  margin-top: 34px;
  perspective: 1500px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.reel-tilt { display: grid; gap: 18px; padding: 30px 0; transform: rotateX(16deg) rotateZ(-3deg) scale(1.06); transform-style: preserve-3d; }
.reel-track { display: flex; width: max-content; animation: marquee 90s linear infinite; will-change: transform; }
.reel-row.reverse .reel-track { animation-direction: reverse; animation-duration: 100s; }
.reel-row:hover .reel-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-50%, 0, 0); } }

.reel-tile {
  position: relative;
  flex: none;
  width: clamp(250px, 25vw, 380px);
  aspect-ratio: 2 / 1;
  margin: 0 18px 0 0;
  border-radius: 14px;
  overflow: hidden;
  background: #0b0d18;
  border: 1px solid var(--border);
  box-shadow: 0 24px 50px -24px rgba(0, 0, 0, 0.9);
  transition: transform .45s var(--ease), box-shadow .45s, border-color .45s;
}
.reel-tile video { width: 100%; height: 100%; object-fit: cover; }
.reel-tile figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 34px 14px 11px;
  font-size: .78rem;
  line-height: 1.4;
  color: #eef1f8;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.82));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .35s, transform .35s;
}
.reel-tile figcaption b { display: block; font-family: var(--font-display); font-size: .92rem; margin-bottom: 2px; }
.reel-tile:hover { transform: translateY(-8px) scale(1.05); border-color: rgba(46, 230, 197, 0.55); box-shadow: 0 30px 60px -20px rgba(46, 230, 197, 0.35); z-index: 2; }
.reel-tile:hover figcaption { opacity: 1; transform: none; }
.reel-note { margin-top: 26px; text-align: center; font: 500 .8rem var(--font-mono); color: var(--dim); }

/* ---------- overview ---------- */
.tldr {
  max-width: 1020px;
  margin: 0 0 44px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.5;
  font-weight: 400;
  color: #d7dcea;
}
.tldr em { font-style: normal; color: #fff; border-bottom: 1px dashed rgba(255, 255, 255, 0.35); }
.tldr strong { color: #fff; }

.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 28px; }
.stat {
  position: relative;
  padding: 22px 20px 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  transition: transform .35s var(--ease), border-color .35s;
}
.stat:hover { transform: translateY(-4px); border-color: rgba(46, 230, 197, 0.35); }
.stat-num { font: 500 2.7rem/1 var(--font-display); letter-spacing: -0.01em; color: #fff; display: flex; align-items: baseline; gap: 2px; }
.stat-num small { font-size: .55em; color: var(--muted); font-weight: 600; }
.stat-label { margin-top: 12px; font-size: .9rem; font-weight: 600; color: var(--text); line-height: 1.35; }
.stat-label span { display: block; margin-top: 4px; font-weight: 400; font-size: .8rem; color: var(--dim); }

.abstract h3 { font-size: 1rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); margin-bottom: 14px; }
.abstract p { margin: 0; font-size: 1.02rem; color: #cfd5e4; text-align: justify; hyphens: auto; }
.abstract b { color: #fff; }

/* ---------- figures ---------- */
.figure { margin: 0; padding: 16px; }
.figure .sheet { background: #fff; border-radius: 12px; padding: 12px; overflow: hidden; }
.figure img { width: 100%; height: auto; cursor: zoom-in; transition: transform .6s var(--ease); }
.figure .sheet:hover img { transform: scale(1.012); }
.figure figcaption { margin: 16px 6px 4px; font-size: .92rem; color: var(--muted); }
.figure figcaption b { color: var(--text); }
.figure-wide .sheet { padding: 18px; }

/* ---------- routing pathology ---------- */
.pathology-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 18px; }
.pathology-head p { margin: 0; color: var(--muted); font-size: .92rem; }
.pathology-stage { position: relative; aspect-ratio: 2128 / 1109; background: #fff; border-radius: 12px; overflow: hidden; }
.pathology-stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; opacity: 0; transform: scale(.985); transition: opacity .6s var(--ease), transform .6s var(--ease); cursor: zoom-in; }
.pathology-stage img { pointer-events: none; }
.pathology-stage img.is-active { opacity: 1; transform: none; pointer-events: auto; }
.pathology-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.p-card { padding: 16px 18px; border-radius: 14px; border: 1px solid rgba(255, 107, 107, 0.22); background: rgba(255, 107, 107, 0.05); transition: border-color .4s, background .4s; }
.p-card p { margin: 0; font-size: .88rem; color: var(--muted); }
.p-num { display: inline-grid; place-items: center; width: 26px; height: 26px; margin-bottom: 10px; border-radius: 8px; font: 700 .8rem/1 var(--font-mono); color: #ff8b8b; background: rgba(255, 107, 107, 0.12); }
.pathology.fixed .p-card { border-color: rgba(46, 230, 197, 0.25); background: rgba(46, 230, 197, 0.05); }
.pathology.fixed .p-num { color: var(--sem); background: rgba(46, 230, 197, 0.12); }
.pathology-caption { margin: 16px 2px 0; font-size: .9rem; color: var(--muted); }

/* ---------- method ---------- */
.expert-panel-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 24px; align-items: start; }
.expert-panel-head p { margin: 0; color: var(--muted); }
.expert-layout {
  --cs: clamp(11px, 1.55vw, 21px);
  --cg: clamp(3px, 0.4vw, 5px);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  gap: 22px 34px;
  margin-top: 26px;
}
.expert-group { display: flex; flex-direction: column; gap: 10px; }
.eg-label { font: 600 .74rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.eg-label em { font-style: normal; margin-left: 6px; padding: 3px 6px; border-radius: 6px; background: rgba(255, 255, 255, 0.07); color: var(--text); }
.expert-cells { display: grid; gap: var(--cg); grid-auto-rows: var(--cs); }
.sem-group .expert-cells { grid-template-columns: repeat(5, var(--cs)); }
.gen-group .expert-cells { grid-template-columns: repeat(20, var(--cs)); }
.shared-group .expert-cells { grid-template-columns: calc(var(--cs) * 2); grid-auto-rows: calc(var(--cs) * 4 + var(--cg) * 3); }
.cell { display: block; border-radius: 4px; transition: background .35s, box-shadow .35s, transform .35s; }
.sem-group .cell { background: rgba(46, 230, 197, 0.13); }
.gen-group .cell { background: rgba(255, 181, 71, 0.11); }
.shared-group .cell { border-radius: 7px; background: rgba(167, 139, 250, 0.55); box-shadow: 0 0 22px rgba(167, 139, 250, 0.45); }
.sem-group .cell.on { background: var(--sem); box-shadow: 0 0 16px rgba(46, 230, 197, 0.9); transform: scale(1.12); }
.gen-group .cell.on { background: var(--gen); box-shadow: 0 0 14px rgba(255, 181, 71, 0.9); transform: scale(1.18); }
.expert-foot { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 20px; font: 500 .82rem var(--font-mono); color: var(--muted); }
.expert-foot b { color: var(--text); }

.components { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 28px; }
.comp { padding: 28px 28px 22px; display: flex; flex-direction: column; }
.comp p { margin: 0 0 16px; color: var(--muted); font-size: .96rem; }
.comp-idx { font: 700 .8rem/1 var(--font-mono); color: var(--dim); letter-spacing: .1em; margin-bottom: 14px; }
.eq {
  margin-top: auto;
  padding: 14px 12px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  overflow-x: auto;
  color: #fff;
  font-size: .98rem;
}
.eq-small { font-size: .82rem; }
.eq .katex-display { margin: 0; }

/* ---------- videos ---------- */
.subhead { margin: 64px 0 20px; max-width: 900px; }
.subhead:first-of-type { margin-top: 0; }
.subhead p { margin: 0; color: var(--muted); }
.section-head + .subhead { margin-top: 0; }

.compare { padding: 18px; }
.compare-stage { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.cmp-cell { position: relative; margin: 0; aspect-ratio: 2 / 1; border-radius: 14px; overflow: hidden; background: #000; border: 1px solid var(--border); }
.cmp-cell-ours { border-color: rgba(46, 230, 197, 0.45); box-shadow: 0 18px 40px -24px rgba(46, 230, 197, 0.55); }
.cmp-cell video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cmp-label {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 7px 11px;
  border-radius: 9px;
  font: 600 .74rem/1 var(--font-mono);
  color: #d2d7e3;
  background: rgba(5, 6, 11, 0.7);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  pointer-events: none;
}
.cmp-cell-ours .cmp-label { color: var(--sem); border-color: rgba(46, 230, 197, 0.4); }

.compare-foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin: 14px 4px 0; }
.compare-prompt { margin: 0; font-size: .95rem; color: var(--text); }
.compare-prompt::before { content: "Prompt · "; font: 600 .74rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.compare-controls { display: flex; gap: 8px; flex: none; }

.thumb-rail { display: flex; gap: 10px; margin-top: 16px; padding: 4px 4px 10px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, 0.2) transparent; }
.thumb {
  position: relative;
  flex: none;
  width: 148px;
  aspect-ratio: 2 / 1;
  padding: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0b0d18 center / cover no-repeat;
  cursor: pointer;
  opacity: .55;
  transition: opacity .3s, border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.thumb:hover { opacity: .9; transform: translateY(-2px); }
.thumb.active { opacity: 1; border-color: rgba(46, 230, 197, 0.8); box-shadow: 0 0 0 1px rgba(46, 230, 197, 0.5), 0 10px 26px -10px rgba(46, 230, 197, 0.6); }
.thumb span { position: absolute; inset: auto 0 0 0; padding: 14px 7px 5px; font-size: .64rem; line-height: 1.2; text-align: left; color: #fff; background: linear-gradient(transparent, rgba(0, 0, 0, 0.85)); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sota { padding: 18px; }
.sota-tabs { display: flex; gap: 10px; overflow-x: auto; padding: 2px 2px 14px; }
.sota-tab {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 6px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font: 600 .84rem var(--font-sans);
  cursor: pointer;
  transition: border-color .3s, color .3s, background .3s;
}
.sota-tab img { width: 64px; height: 32px; object-fit: cover; border-radius: 7px; }
.sota-tab:hover { color: var(--text); }
.sota-tab.active { color: #fff; border-color: rgba(46, 230, 197, 0.6); background: rgba(46, 230, 197, 0.07); }
.sota-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 10px; }
.sota-tile { position: relative; aspect-ratio: 2 / 1; border-radius: 12px; overflow: hidden; background: #000; border: 1px solid var(--border); }
.sota-tile video { width: 100%; height: 100%; object-fit: contain; }
.sota-tile.ours { grid-row: span 2; aspect-ratio: auto; border-color: rgba(46, 230, 197, 0.65); box-shadow: 0 0 0 1px rgba(46, 230, 197, 0.35), 0 0 50px -12px rgba(46, 230, 197, 0.55); }
.sota-tile .tag {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 5px 8px;
  border-radius: 7px;
  font: 600 .68rem/1 var(--font-mono);
  color: #dfe3ee;
  background: rgba(5, 6, 11, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  pointer-events: none;
}
.sota-tile .tag small { color: var(--dim); margin-left: 5px; font-weight: 500; }
.sota-tile.ours .tag { color: #04131a; background: var(--grad-sem); font-size: .78rem; padding: 7px 10px; }
.sota-tile.ours .tag small { color: rgba(4, 19, 26, 0.7); }
.sota-foot { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin: 14px 4px 0; }
.sota-foot p { margin: 0; font-size: .95rem; }
.sota-foot p::before { content: "Prompt · "; font: 600 .74rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }

.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.g-tile {
  position: relative;
  aspect-ratio: 2 / 1;
  padding: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0b0d18;
  cursor: zoom-in;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.g-tile:first-child { grid-column: span 2; grid-row: span 2; }
.g-tile video { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.g-tile:hover { transform: translateY(-4px); border-color: rgba(46, 230, 197, 0.5); box-shadow: 0 24px 50px -24px rgba(46, 230, 197, 0.45); }
.g-tile:hover video { transform: scale(1.04); }
.g-cap { position: absolute; inset: auto 0 0 0; padding: 30px 14px 12px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.85)); }
.g-cap b { display: block; font: 600 .95rem/1.3 var(--font-display); color: #fff; }
.g-cap span { display: block; max-height: 0; overflow: hidden; font-size: .76rem; line-height: 1.4; color: #cfd5e4; opacity: 0; transition: max-height .5s var(--ease), opacity .4s, margin .4s; }
.g-tile:hover .g-cap span { max-height: 5.6em; opacity: 1; margin-top: 4px; }
.g-tile:first-child .g-cap b { font-size: 1.25rem; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border-radius: 14px; border: 1px solid var(--border); background: rgba(0, 0, 0, 0.2); }
table.results { width: 100%; border-collapse: collapse; font-size: .9rem; font-variant-numeric: tabular-nums; }
.results th, .results td { padding: 11px 9px; text-align: center; white-space: nowrap; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.results thead th { font: 600 .68rem/1.3 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); background: rgba(255, 255, 255, 0.03); vertical-align: bottom; white-space: normal; }
.results thead th[data-col] { min-width: 84px; }
.results thead tr.bench th { color: var(--text); font-size: .74rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.results thead tr.bench th.b-vb { box-shadow: inset 0 -2px 0 rgba(46, 230, 197, 0.6); }
.results thead tr.bench th.b-cb { box-shadow: inset 0 -2px 0 rgba(255, 181, 71, 0.6); }
.results th:first-child, .results td:first-child { text-align: left; padding-left: 18px; }
.results td.params { color: var(--dim); font-family: var(--font-mono); font-size: .8rem; }
.results tr.group td { padding: 15px 18px 7px; font: 600 .68rem/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); border-bottom: 0; text-align: left; }
.results tbody tr:not(.group) { transition: background .2s; }
.results tbody tr:not(.group):hover { background: rgba(255, 255, 255, 0.035); }
.results td.v { position: relative; color: #cfd5e4; }
.results td.v::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.5) var(--v, 0%), transparent var(--v, 0%));
  opacity: .5;
}
.results td.best { color: var(--sem); font-weight: 700; }
.results td.second { color: #fff; text-decoration: underline; text-decoration-color: rgba(255, 255, 255, 0.45); text-underline-offset: 4px; }
.results tr.ours td { background: rgba(46, 230, 197, 0.1); color: #fff; font-weight: 600; }
.results tr.ours td:first-child { box-shadow: inset 3px 0 0 var(--sem); }
.results tr.ours td.best { color: var(--sem); }
.results td.col-hover, .results th.col-hover { background: rgba(255, 255, 255, 0.04); }
.results-speed td, .results-speed th { font-size: .95rem; padding: 14px 18px; }
.results .oc { background: rgba(46, 230, 197, 0.08); color: #fff; font-weight: 600; }
.results th.oc { color: var(--sem); }
.table-note { margin: 14px 4px 4px; font-size: .82rem; color: var(--dim); }
.table-note b { color: var(--sem); }

/* ---------- charts ---------- */
.chart-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 28px; }
.chart-card { display: flex; flex-direction: column; }
.chart-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.chart-head h3 { font-size: 1.12rem; margin-bottom: 4px; }
.chart-head p { margin: 0; font-size: .84rem; color: var(--dim); }
.select { display: flex; flex-direction: column; gap: 4px; font: 600 .66rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.select select {
  appearance: none;
  padding: 8px 32px 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  color: var(--text);
  font: 600 .84rem var(--font-sans);
  text-transform: none;
  letter-spacing: 0;
  background: rgba(255, 255, 255, 0.05) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23a3abbf'/%3E%3C/svg%3E") no-repeat right 12px center;
  cursor: pointer;
}
.select select option { background: #0b0d18; }
.chart-svg { width: 100%; height: auto; overflow: visible; }
.chart-svg text { font-family: var(--font-sans); }
.chart-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 10px; font-size: .8rem; color: var(--muted); }
.chart-legend span { display: inline-flex; align-items: center; gap: 7px; }
.chart-legend em { font-style: normal; }
.lg-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.lg-base { background: #8b93a8; }
.lg-ours { background: var(--sem); box-shadow: 0 0 10px var(--sem); }
.chart-foot { margin: 12px 0 0; font-size: .82rem; color: var(--dim); }
.chart-card > .chart-foot:last-child { margin-top: auto; padding-top: 14px; }
.tip {
  position: fixed;
  z-index: 300;
  padding: 7px 10px;
  border-radius: 8px;
  font: 600 .76rem/1.3 var(--font-mono);
  color: #fff;
  background: rgba(10, 12, 22, 0.92);
  border: 1px solid var(--border-2);
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, calc(-100% - 12px));
  transition: opacity .15s;
  white-space: nowrap;
}
.tip.on { opacity: 1; }

/* ---------- analysis ---------- */
.timestep { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 30px; align-items: center; }
.timestep-text h3 { font-size: 1.6rem; }
.timestep-text p { color: var(--muted); margin: 0 0 18px; }
.phase-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.phase-list li { display: flex; gap: 12px; align-items: center; font-size: .9rem; color: var(--muted); }
.phase-list b { color: var(--text); }
.ph { width: 26px; height: 10px; border-radius: 5px; flex: none; }
.ph-sem { background: var(--grad-sem); box-shadow: 0 0 12px rgba(46, 230, 197, 0.6); }
.ph-gen { background: var(--grad-gen); box-shadow: 0 0 12px rgba(255, 181, 71, 0.5); }
.analysis-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 28px; }
.analysis-grid .figure { margin: 0; }
.analysis-grid + .figure { margin-top: 28px; }

/* ---------- bibtex ---------- */
.bib { padding: 0; overflow: hidden; }
.bib pre { margin: 0; padding: 28px 30px; overflow-x: auto; font: 500 .9rem/1.7 var(--font-mono); color: #d6dbe8; }
.bib code { font: inherit; }
.copy-btn { position: absolute; top: 14px; right: 14px; }
.copy-btn.done { color: var(--sem); border-color: rgba(46, 230, 197, 0.6); }

/* ---------- footer ---------- */
.footer { padding: 60px 0 70px; border-top: 1px solid var(--border); background: linear-gradient(to bottom, transparent, rgba(46, 230, 197, 0.03)); }
.footer-inner { text-align: center; color: var(--dim); font-size: .88rem; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font: 600 1rem var(--font-display); color: var(--text); margin-bottom: 12px; }
.footer p { margin: 6px 0; }
.footer-small { font-size: .78rem; }

.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-2);
  background: rgba(8, 10, 18, 0.75);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity .3s, transform .3s, border-color .3s;
}
.to-top.on { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { border-color: rgba(46, 230, 197, 0.6); }

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 40px;
  background: rgba(3, 4, 8, 0.9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lb-inner { max-width: min(1400px, 100%); max-height: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; transform: scale(.97); transition: transform .35s var(--ease); }
.lightbox.open .lb-inner { transform: none; }
.lb-media img, .lb-media video { max-width: 100%; max-height: calc(100vh - 170px); border-radius: 12px; background: #fff; }
.lb-media video { background: #000; }
.lb-caption { max-width: 900px; margin: 0; text-align: center; font-size: .92rem; color: var(--muted); }
.lb-caption b { color: var(--text); display: block; font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 4px; }
.lb-close { position: absolute; top: 18px; right: 22px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border-2); background: rgba(255, 255, 255, 0.06); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer; }
.lb-close:hover { border-color: rgba(46, 230, 197, 0.6); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .nav-links a { padding: 7px 8px; font-size: .84rem; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .chart-grid { grid-template-columns: minmax(0, 1fr); }
  .analysis-grid { grid-template-columns: 1fr 1fr; }
  .analysis-grid .figure:last-child { grid-column: span 2; max-width: 640px; justify-self: center; }
}

@media (max-width: 860px) {
  .nav { gap: 12px; }
  .nav-toggle {
    display: grid;
    place-content: center;
    gap: 5px;
    margin-left: auto;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border-2);
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
  }
  .nav-toggle span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .3s; }
  .nav.open .nav-toggle span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .nav.open .nav-toggle span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 10px;
    border-radius: 14px;
    background: rgba(8, 10, 18, 0.95);
    border: 1px solid var(--border);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity .25s, transform .25s;
  }
  .nav.open .nav-links { opacity: 1; pointer-events: auto; transform: none; }
  .nav.open { background: rgba(8, 10, 18, 0.9); border-color: var(--border); }
  .nav-links a { padding: 11px 12px; font-size: .95rem; }
  .nav-links a.active::after { display: none; }

  .section { padding: 90px 0; }
  .hero-content { padding: 110px 18px 100px; }
  .authors { gap: 4px 14px; font-size: .98rem; }
  .affiliations { flex-direction: column; gap: 2px; font-size: .88rem; }
  .hero-status, .hero-replay { display: none; }
  .scroll-cue { bottom: 20px; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats .stat:last-child { grid-column: span 2; }
  .card { padding: 20px; }
  .figure { padding: 10px; }
  .figure .sheet { padding: 8px; }
  .pathology-head { flex-direction: column; }
  .pathology-cards { grid-template-columns: 1fr; }
  .expert-panel-head { grid-template-columns: 1fr; gap: 8px; }
  .expert-layout { --cs: clamp(7px, 2.9vw, 16px); --cg: 3px; justify-content: flex-start; gap: 16px 22px; }
  .components { grid-template-columns: 1fr; }
  .compare-foot, .sota-foot { flex-direction: column; align-items: flex-start; }
  .compare-stage { grid-template-columns: 1fr; gap: 10px; }
  .sota-grid { grid-template-columns: 1fr 1fr; }
  .sota-tile.ours { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 2 / 1; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 10px; }
  .timestep { grid-template-columns: 1fr; }
  .analysis-grid { grid-template-columns: 1fr; }
  .analysis-grid .figure:last-child { grid-column: auto; }
  .lightbox { padding: 14px; }
}

@media (max-width: 520px) {
  .stat-num { font-size: 2rem; }
  .results-speed td, .results-speed th { font-size: .86rem; padding: 12px 10px; }
  .bib pre { font-size: .76rem; padding: 22px 18px; }
}

@media (hover: none) {
  .cursor-glow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
  .reel-track { animation: none !important; }
}