:root {
  color-scheme: dark;
  --bg: #070914;
  --bg-deep: #050711;
  --surface: rgba(17, 21, 42, 0.78);
  --surface-solid: #11152a;
  --surface-light: #171d38;
  --text: #f3f5ff;
  --text-soft: #b8bfd8;
  --text-dim: #7f89a8;
  --line: rgba(197, 207, 255, 0.12);
  --line-strong: rgba(138, 157, 255, 0.28);
  --blue: #6e8cff;
  --blue-bright: #8fa5ff;
  --violet: #a876ff;
  --cyan: #5ee7e7;
  --green: #73e6b1;
  --coral: #ff8f9f;
  --max: 1180px;
  --radius: 22px;
  --radius-sm: 14px;
  --font-sans: "DM Sans", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --font-mono: "JetBrains Mono", Consolas, monospace;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.28);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
img, video { max-width: 100%; }
::selection { background: rgba(110, 140, 255, 0.35); color: #fff; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  transform: translateY(-150%);
  transition: transform 0.2s;
}

.skip-link:focus { transform: translateY(0); }

.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 74% 10%, rgba(102, 93, 230, 0.08), transparent 32%),
    linear-gradient(180deg, #070914 0%, #090c19 52%, #060812 100%);
}

.ambient__grid {
  position: absolute;
  inset: 0;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(150, 165, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150, 165, 230, 0.035) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 65%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 65%);
}

.ambient__orb {
  position: absolute;
  width: 540px;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.11;
}

.ambient__orb--one { top: -170px; right: -130px; background: var(--violet); }
.ambient__orb--two { bottom: 8%; left: -260px; background: var(--blue); }

.container {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: transform 0.32s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.site-nav.scrolled {
  border-color: var(--line);
  background: rgba(7, 9, 20, 0.78);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
}

.site-nav.nav-hidden { transform: translateY(-100%); }

.nav-inner {
  width: min(calc(100% - 40px), var(--max));
  height: 68px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand > span:last-child > span { color: var(--cyan); }

.brand-mark {
  position: relative;
  width: 26px;
  height: 26px;
  border: 1.5px solid var(--blue-bright);
  border-radius: 50%;
}

.brand-mark::before {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  top: 3px;
  right: -1px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 15px rgba(94, 231, 231, 0.7);
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  right: 2px;
  bottom: 1px;
  border-right: 1.5px solid var(--blue-bright);
  border-bottom: 1.5px solid var(--blue-bright);
  transform: rotate(-28deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  position: relative;
  padding: 0.35rem 0;
  color: var(--text-dim);
  font-size: 0.79rem;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); transform-origin: left; }

.hero {
  position: relative;
  min-height: 100svh;
  padding: 148px 0 76px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(110, 140, 255, 0.35), transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(400px, 0.92fr);
  align-items: center;
  gap: 5.5rem;
}

.eyebrow,
.section-index {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.42rem 0.76rem;
  border: 1px solid rgba(94, 231, 231, 0.2);
  border-radius: 999px;
  background: rgba(94, 231, 231, 0.045);
}

.eyebrow > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse { 50% { opacity: 0.35; transform: scale(0.75); } }

.hero h1 {
  margin: 1.5rem 0 0.45rem;
  font-family: var(--font-display);
  font-size: clamp(4.8rem, 9.6vw, 8.5rem);
  font-weight: 400;
  line-height: 0.86;
  letter-spacing: -0.055em;
}

.hero h1 span {
  color: transparent;
  background: linear-gradient(105deg, var(--blue-bright), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-title {
  max-width: 700px;
  margin: 1.4rem 0 0;
  color: var(--text);
  font-size: clamp(1.15rem, 2.3vw, 1.52rem);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.02em;
}

.hero-lede {
  max-width: 620px;
  margin: 1rem 0 1.8rem;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.8;
}

.authors-block {
  max-width: 700px;
  margin-top: 1.9rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.authors-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

.authors-list > span {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.authors-list sup,
.affiliations-list sup {
  margin-left: 0.16rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 600;
}

.author-notes {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  color: var(--text-dim);
  font-size: 0.61rem;
}

.affiliations-list {
  margin-top: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
}

.affiliations-list > span {
  color: var(--text-soft);
  font-size: 0.64rem;
  line-height: 1.5;
}

.cycle-visual {
  position: relative;
  width: min(100%, 470px);
  aspect-ratio: 1;
  margin-inline: auto;
}

.orbit {
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(143, 165, 255, 0.31);
  border-radius: 50%;
  box-shadow: inset 0 0 50px rgba(110, 140, 255, 0.05);
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

.orbit::before { top: 11%; right: 16%; }
.orbit::after { bottom: 11%; left: 16%; background: var(--violet); box-shadow: 0 0 18px var(--violet); }

.orbit--outer {
  animation: orbitSpin 28s linear infinite;
  background: conic-gradient(from 90deg, transparent 0 70%, rgba(110, 140, 255, 0.08), transparent);
}

.orbit--outer::after {
  width: 12px;
  height: 12px;
  border: 2px solid var(--cyan);
  border-top-color: transparent;
  border-radius: 2px;
  background: transparent;
  box-shadow: none;
  transform: rotate(42deg);
}

.orbit--inner { inset: 21%; border-style: dashed; opacity: 0.65; animation: orbitSpin 24s linear infinite reverse; }

.orbit-glow {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 140, 255, 0.12), rgba(110, 140, 255, 0.02) 45%, transparent 70%);
  filter: blur(5px);
}

@keyframes orbitSpin { to { transform: rotate(360deg); } }

.cycle-core {
  position: absolute;
  inset: 31%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(11, 14, 29, 0.86);
  box-shadow: 0 20px 65px rgba(0, 0, 0, 0.4), inset 0 0 35px rgba(110, 140, 255, 0.08);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.cycle-core strong { font-family: var(--font-display); font-size: 2.25rem; font-weight: 400; }
.cycle-core strong sub { color: var(--cyan); font-family: var(--font-mono); font-size: 0.65rem; }
.cycle-core__label,
.cycle-core__return { font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.08em; text-transform: uppercase; }
.cycle-core__label { color: var(--text-dim); }
.cycle-core__return { margin-top: 0.25rem; color: var(--green); }

.action-node {
  position: absolute;
  z-index: 2;
  min-width: 69px;
  padding: 0.58rem 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: rgba(17, 21, 42, 0.92);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.action-node b {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: rgba(110, 140, 255, 0.13);
  color: var(--blue-bright);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.action-node small { color: var(--text-soft); font-size: 0.62rem; }
.action-node--one { top: 5%; left: 50%; transform: translateX(-50%); }
.action-node--two { top: 50%; right: 0; transform: translateY(-50%); }
.action-node--three { bottom: 5%; left: 50%; transform: translateX(-50%); }
.action-node--four { top: 50%; left: 0; transform: translateY(-50%); }
.action-node--three b,
.action-node--four b { color: var(--cyan); background: rgba(94, 231, 231, 0.1); }

.phase { position: absolute; color: var(--text-dim); font-family: var(--font-mono); font-size: 0.63rem; }
.phase--one { left: 21%; bottom: 18%; }
.phase--two { top: 18%; right: 20%; }

.hero-stats {
  margin-top: 5.3rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-stats article {
  min-height: 118px;
  padding: 1.4rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-right: 1px solid var(--line);
}

.hero-stats article:last-child { border-right: 0; }
.hero-stats strong { font-family: var(--font-display); font-size: 2.7rem; font-weight: 400; line-height: 1; }
.hero-stats strong sup { color: var(--cyan); font-family: var(--font-sans); font-size: 0.8rem; }
.hero-stats span { color: var(--text-dim); font-size: 0.72rem; font-weight: 600; line-height: 1.45; text-transform: uppercase; letter-spacing: 0.05em; }

.section { position: relative; padding: 112px 0; }
.section--compact { padding-top: 100px; }
.section--bench,
.section--results { border-block: 1px solid rgba(197, 207, 255, 0.07); background: rgba(13, 16, 33, 0.52); }

.section-heading { margin-bottom: 3.3rem; }
.section-heading--split { display: flex; align-items: flex-end; justify-content: space-between; gap: 3rem; }
.section-heading h2 {
  max-width: 860px;
  margin: 0.65rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.2vw, 5.6rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.section-heading h2 em { color: var(--blue-bright); font-weight: 400; }
.section-heading--split > p { max-width: 430px; margin: 0 0 0.4rem; color: var(--text-soft); font-size: 0.92rem; line-height: 1.75; }

.abstract-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.6fr);
  gap: 3rem;
  align-items: start;
}

.abstract-copy { columns: 2; column-gap: 2.3rem; }
.abstract-copy p { margin: 0 0 1rem; break-inside: avoid; color: var(--text-soft); font-size: 0.94rem; text-align: justify; }
.abstract-copy .lead { color: var(--text); }
.abstract-copy mark { padding: 0 0.14rem; background: rgba(94, 231, 231, 0.08); color: var(--cyan); }

.insight-card {
  padding: 1.6rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(110, 140, 255, 0.09), rgba(168, 118, 255, 0.03));
}

.insight-card__kicker { color: var(--cyan); font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; }
.insight-card blockquote { margin: 1rem 0 1.6rem; color: var(--text); font-family: var(--font-display); font-size: 1.45rem; line-height: 1.28; }
.identity-equation { display: flex; align-items: center; justify-content: center; gap: 0.75rem; padding-top: 1.1rem; border-top: 1px solid var(--line); font-family: var(--font-mono); }
.identity-equation span:not(.operator) { padding: 0.42rem 0.6rem; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, 0.03); }
.identity-equation .operator { color: var(--text-dim); }
.identity-equation .identity { border-color: rgba(94, 231, 231, 0.3); color: var(--cyan); }

.paper-figure {
  margin: 4rem 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.paper-figure a { display: block; }
.paper-figure img { width: 100%; display: block; }
.paper-figure figcaption { padding: 1rem 1.3rem 1.15rem; border-top: 1px solid #e2e5ec; background: #f7f8fb; color: #535d71; font-size: 0.78rem; line-height: 1.6; }
.paper-figure figcaption span { margin-right: 0.45rem; color: #26324c; font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.paper-figure--wide { margin-top: 3rem; }

.reward-grid { margin-top: 1rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.reward-card { padding: 1.7rem; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(11, 14, 29, 0.76); }
.reward-card__top { display: flex; align-items: center; gap: 0.55rem; }
.reward-card__top code { color: var(--text-soft); font-family: var(--font-mono); font-size: 0.72rem; }
.reward-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--violet); box-shadow: 0 0 12px var(--violet); }
.reward-card--temporal .reward-dot { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.reward-card h3 { margin: 1.05rem 0 0.45rem; font-family: var(--font-display); font-size: 2rem; font-weight: 400; }
.reward-card p { margin: 0; color: var(--text-dim); font-size: 0.83rem; }

.reward-track,
.phase-track { margin-top: 1.7rem; padding-top: 1.35rem; display: flex; align-items: center; border-top: 1px solid var(--line); color: var(--text-soft); font-family: var(--font-mono); font-size: 0.62rem; }
.reward-track { justify-content: space-between; }
.reward-track span { width: 37px; height: 29px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 7px; }
.reward-track i { flex: 1; height: 1px; background: var(--line-strong); }
.reward-track__turn { height: 15px !important; border-radius: 0 8px 8px 0; border: 1px solid var(--violet); border-left: 0; background: transparent !important; }
.phase-track { gap: 0.7rem; }
.phase-track span { padding: 0.38rem 0.55rem; border: 1px solid var(--line); border-radius: 7px; }
.phase-track i { flex: 1; border-top: 1px dashed var(--cyan); opacity: 0.45; }

.task-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.9rem; }
.task-card { position: relative; min-height: 260px; padding: 1.4rem; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(11, 14, 29, 0.72); }
.task-card::after { content: ""; position: absolute; width: 100px; height: 100px; top: -60px; right: -40px; border-radius: 50%; background: var(--task-color, var(--blue)); filter: blur(38px); opacity: 0.18; }
.task-card:nth-child(1) { --task-color: var(--coral); }
.task-card:nth-child(2) { --task-color: var(--green); }
.task-card:nth-child(3) { --task-color: var(--blue); }
.task-card:nth-child(4) { --task-color: var(--violet); }
.task-card__id { color: var(--task-color); font-family: var(--font-mono); font-size: 0.65rem; font-weight: 600; }
.task-card h3 { margin: 1.45rem 0 0.35rem; font-size: 0.95rem; }
.task-card p { margin: 0; color: var(--text-dim); font-size: 0.77rem; line-height: 1.65; }

.task-path { position: relative; height: 70px; margin: 1.1rem 0 0.3rem; display: flex; align-items: center; justify-content: center; }
.task-path--line i { width: 86px; height: 1px; background: var(--task-color); }
.task-path--line i::before,
.task-path--line i::after { content: ""; position: absolute; top: 31px; width: 7px; height: 7px; border-top: 1px solid var(--task-color); border-right: 1px solid var(--task-color); }
.task-path--line i::before { left: calc(50% - 45px); transform: rotate(-135deg); }
.task-path--line i::after { right: calc(50% - 45px); transform: rotate(45deg); }
.task-path--line span { width: 10px; height: 10px; border: 2px solid var(--task-color); border-radius: 50%; }
.task-path--square span { width: 58px; height: 42px; border: 1px solid var(--task-color); border-radius: 9px; }
.task-path--square span::after { content: ""; position: absolute; top: 12px; right: calc(50% - 33px); width: 8px; height: 8px; border-top: 1px solid var(--task-color); border-right: 1px solid var(--task-color); transform: rotate(45deg); }
.task-path--repeat { gap: 0.45rem; }
.task-path--repeat span { width: 38px; height: 38px; border: 1px dashed var(--task-color); border-radius: 50%; }
.task-path--cascade { gap: 0.5rem; }
.task-path--cascade span { width: 44px; height: 44px; border: 1px dashed var(--task-color); border-radius: 50%; }
.task-path--cascade i { width: 18px; height: 1px; background: var(--task-color); }

.bench-meta { margin-top: 1rem; padding: 1.3rem 1.5rem; display: grid; grid-template-columns: 0.7fr 0.7fr 0.7fr 1.9fr; gap: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(110, 140, 255, 0.035); }
.bench-meta > div { display: flex; align-items: center; gap: 0.75rem; padding-right: 1rem; border-right: 1px solid var(--line); }
.bench-meta > div:last-child { border-right: 0; padding-right: 0; }
.bench-meta span { font-family: var(--font-display); font-size: 2.05rem; }
.bench-meta p { margin: 0; color: var(--text-dim); font-size: 0.68rem; line-height: 1.4; text-transform: uppercase; letter-spacing: 0.05em; }
.bench-meta__metrics code { padding: 0.35rem 0.45rem; border: 1px solid var(--line); border-radius: 6px; color: var(--cyan); font-family: var(--font-mono); font-size: 0.63rem; }
.paper-figure--bench img { max-height: 540px; object-fit: contain; }

.comparison-shell { overflow: hidden; border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); background: rgba(7, 9, 20, 0.7); box-shadow: var(--shadow); }
.comparison-toolbar { padding: 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); }
.scene-tabs { display: flex; align-items: center; gap: 0.45rem; overflow-x: auto; scrollbar-width: thin; }
.scene-tab,
.replay-button { flex: 0 0 auto; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--text-dim); cursor: pointer; transition: border-color 0.2s, background-color 0.2s, color 0.2s; }
.scene-tab { padding: 0.55rem 0.9rem; font-size: 0.72rem; font-weight: 600; }
.scene-tab:hover,
.scene-tab.active { border-color: rgba(94, 231, 231, 0.3); background: rgba(94, 231, 231, 0.08); color: var(--cyan); }
.replay-button { padding: 0.52rem 0.85rem; font-size: 0.69rem; }
.replay-button:hover { border-color: var(--line-strong); color: var(--text); }
.replay-button span { display: inline-block; margin-right: 0.25rem; font-size: 1rem; line-height: 0; }
.comparison-progress { height: 2px; background: rgba(255, 255, 255, 0.04); }
.comparison-progress span { width: 0; height: 100%; display: block; background: linear-gradient(90deg, var(--blue), var(--cyan)); box-shadow: 0 0 10px rgba(94, 231, 231, 0.35); transition: width 0.08s linear; }
.comparison-status { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.video-panel { padding: 1rem; }
.video-panel[hidden] { display: none; }
.scenario-note { min-height: 38px; margin-bottom: 0.8rem; display: flex; align-items: center; justify-content: center; gap: 0.75rem; color: var(--text-dim); font-size: 0.7rem; }
.scenario-note code { padding: 0.32rem 0.55rem; border: 1px solid var(--line); border-radius: 7px; color: var(--blue-bright); font-family: var(--font-mono); font-size: 0.65rem; }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
.video-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #0a0c16; }
.video-card--ours { border-color: rgba(94, 231, 231, 0.38); box-shadow: 0 0 0 1px rgba(94, 231, 231, 0.05), 0 14px 40px rgba(55, 173, 192, 0.08); }
.video-card__head { height: 50px; padding: 0 0.85rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.video-card__head span { font-size: 0.77rem; font-weight: 600; }
.video-card__head small { padding: 0.24rem 0.42rem; border: 1px solid var(--line); border-radius: 999px; color: var(--text-dim); font-size: 0.54rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.video-card--ours .video-card__head small { border-color: rgba(94, 231, 231, 0.2); background: rgba(94, 231, 231, 0.06); color: var(--cyan); }
.video-card video { width: 100%; aspect-ratio: 16 / 9; display: block; background: #05060b; object-fit: cover; cursor: pointer; }

.result-highlights { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; }
.result-card { min-height: 205px; padding: 1.3rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(110, 140, 255, 0.07), rgba(94, 231, 231, 0.025)); }
.result-card > span { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.07em; }
.result-card strong { margin: auto 0 0.3rem; color: transparent; background: linear-gradient(120deg, var(--blue-bright), var(--cyan)); -webkit-background-clip: text; background-clip: text; font-family: var(--font-display); font-size: 3.6rem; font-weight: 400; line-height: 1; }
.result-card small { color: var(--text-soft); font-size: 0.67rem; }

.results-table-wrap { margin-top: 1rem; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(7, 9, 20, 0.6); }
.results-table { width: 100%; min-width: 740px; border-collapse: collapse; font-size: 0.78rem; }
.results-table caption { padding: 1.15rem 1.25rem; color: var(--text-soft); font-size: 0.72rem; font-weight: 600; text-align: left; }
.results-table th,
.results-table td { padding: 1rem 1.25rem; border-top: 1px solid var(--line); text-align: right; }
.results-table thead th { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.61rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.results-table th:first-child { text-align: left; }
.results-table tbody th { color: var(--text); font-weight: 600; }
.results-table tbody th small { display: block; color: var(--text-dim); font-size: 0.61rem; font-weight: 400; }
.results-table tbody td { color: var(--text-soft); font-family: var(--font-mono); }
.results-table tbody tr:hover { background: rgba(110, 140, 255, 0.035); }
.results-table .accent-cell { color: var(--cyan); font-weight: 600; }

.training-layout { margin-top: 1rem; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem; }
.paper-figure--training { margin: 0; }
.training-note { padding: 2rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.training-note h3 { margin: 1rem 0 0.8rem; font-family: var(--font-display); font-size: 2.15rem; font-weight: 400; line-height: 1.12; }
.training-note > p { margin: 0; color: var(--text-dim); font-size: 0.82rem; }
.training-note > p strong { color: var(--text); }
.quality-meter { margin-top: auto; padding-top: 2rem; display: grid; gap: 0.75rem; }
.quality-meter span { position: relative; min-height: 34px; padding: 0 0.8rem; display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.quality-meter span::before { content: ""; position: absolute; inset: 0 auto 0 0; z-index: 0; width: var(--value); background: rgba(110, 140, 255, 0.12); }
.quality-meter .quality-meter__ours::before { background: rgba(94, 231, 231, 0.14); }
.quality-meter i,
.quality-meter b { position: relative; z-index: 1; font-size: 0.65rem; font-style: normal; }
.quality-meter i { color: var(--text-soft); }
.quality-meter b { font-family: var(--font-mono); }

.section--citation { padding-block: 120px; }
.citation-layout { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 4rem; align-items: center; }
.citation-layout .section-heading { margin: 0; }
.citation-layout .section-heading h2 { font-size: clamp(3.4rem, 5.8vw, 5.4rem); }
.citation-note { max-width: 390px; margin: 1.4rem 0 0; color: var(--text-dim); font-size: 0.78rem; }
.code-card { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #090b17; box-shadow: var(--shadow); }
.code-card__head { height: 51px; padding: 0 1rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); color: var(--text-dim); font-family: var(--font-mono); font-size: 0.63rem; }
.code-card__head button { padding: 0.38rem 0.65rem; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, 0.02); color: var(--text-soft); font-size: 0.62rem; cursor: pointer; }
.code-card__head button:hover { border-color: var(--line-strong); color: var(--text); }
.code-card__head button span { margin-right: 0.3rem; color: var(--cyan); }
.code-card pre { margin: 0; padding: 1.6rem; overflow-x: auto; color: var(--blue-bright); font-family: var(--font-mono); font-size: 0.72rem; line-height: 1.75; white-space: pre; }
.copy-status { min-height: 31px; margin: 0; padding: 0 1.6rem 0.7rem; color: var(--green); font-size: 0.65rem; }

.site-footer { padding: 2.5rem 0; border-top: 1px solid var(--line); }
.site-footer .container { display: flex; align-items: center; gap: 2rem; }
.site-footer p { flex: 1; margin: 0; color: var(--text-dim); font-size: 0.7rem; }
.site-footer .container > span { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.58rem; text-transform: uppercase; letter-spacing: 0.06em; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.72s cubic-bezier(0.16, 1, 0.3, 1), transform 0.72s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-sm { transition-delay: 0.08s; }
.reveal-delay { transition-delay: 0.15s; }
.reveal-delay-lg { transition-delay: 0.22s; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr 390px; gap: 2rem; }
  .hero h1 { font-size: clamp(4.5rem, 10vw, 7rem); }
  .hero-stats article { padding-inline: 1rem; }
  .abstract-layout { grid-template-columns: 1.2fr 0.8fr; }
  .abstract-copy { columns: 1; }
  .task-grid { grid-template-columns: 1fr 1fr; }
  .result-highlights { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav-inner { width: 100%; padding-left: 20px; overflow: hidden; }
  .nav-links { padding-right: 20px; overflow-x: auto; }
  .nav-links a { flex: 0 0 auto; }
  .hero { min-height: auto; padding-top: 120px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-lede, .hero-title { margin-inline: auto; }
  .authors-block { margin-inline: auto; text-align: center; }
  .authors-list,
  .author-notes,
  .affiliations-list { justify-content: center; }
  .cycle-visual { width: min(84vw, 430px); }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats article:nth-child(2) { border-right: 0; }
  .hero-stats article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding-block: 88px; }
  .section-heading--split { display: block; }
  .section-heading--split > p { margin-top: 1.2rem; }
  .abstract-layout,
  .reward-grid,
  .training-layout,
  .citation-layout { grid-template-columns: 1fr; }
  .bench-meta { grid-template-columns: 1fr 1fr; }
  .bench-meta > div:nth-child(2) { border-right: 0; }
  .bench-meta > div:nth-child(-n+2) { padding-bottom: 0.8rem; border-bottom: 1px solid var(--line); }
  .bench-meta__metrics { grid-column: 1 / -1; border-right: 0 !important; }
  .video-grid { grid-template-columns: 1fr; }
  .video-card video { aspect-ratio: 16 / 8.4; }
  .citation-layout { gap: 2rem; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .nav-inner { padding-left: 14px; }
  .brand { font-size: 0.9rem; }
  .nav-links { padding-right: 14px; gap: 1rem; }
  .nav-links a { font-size: 0.69rem; }
  .hero { padding-top: 108px; }
  .hero h1 { font-size: clamp(4.1rem, 22vw, 6rem); }
  .hero-title { font-size: 1.05rem; }
  .hero-lede { font-size: 0.88rem; }
  .cycle-visual { width: 94vw; max-width: 365px; }
  .action-node { min-width: 58px; padding: 0.42rem; }
  .action-node small { display: none; }
  .action-node b { width: 22px; height: 22px; }
  .cycle-core strong { font-size: 1.8rem; }
  .hero-stats article { min-height: 100px; padding: 1rem 0.75rem; gap: 0.65rem; }
  .hero-stats strong { font-size: 2.15rem; }
  .hero-stats span { font-size: 0.57rem; }
  .section { padding-block: 72px; }
  .section-heading { margin-bottom: 2.2rem; }
  .section-heading h2 { font-size: clamp(2.75rem, 15vw, 4rem); }
  .section-heading--split > p { font-size: 0.83rem; }
  .abstract-copy p { text-align: left; }
  .paper-figure { margin-top: 2.5rem; border-radius: 14px; }
  .paper-figure figcaption { padding: 0.75rem; font-size: 0.67rem; }
  .task-grid,
  .result-highlights { grid-template-columns: 1fr; }
  .task-card { min-height: 235px; }
  .bench-meta { grid-template-columns: 1fr; }
  .bench-meta > div { padding: 0 0 0.7rem !important; border-right: 0; border-bottom: 1px solid var(--line); }
  .bench-meta > div:last-child { border-bottom: 0; padding-bottom: 0 !important; }
  .bench-meta__metrics { grid-column: auto; flex-wrap: wrap; }
  .comparison-toolbar { align-items: flex-start; flex-direction: column; }
  .scene-tabs { width: 100%; }
  .replay-button { align-self: flex-end; }
  .video-panel { padding: 0.65rem; }
  .video-grid { gap: 0.65rem; }
  .result-card { min-height: 165px; }
  .results-table th, .results-table td { padding-inline: 0.8rem; }
  .training-note { padding: 1.4rem; }
  .code-card pre { padding: 1.1rem; font-size: 0.62rem; }
  .site-footer .container { flex-wrap: wrap; gap: 1rem; }
  .site-footer p { flex-basis: 100%; order: 3; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}