:root {
  --bg-dark: #0b0b0f;
  --bg-dark-2: #121218;
  --bg-paper: #f5f3ee;
  --bg-light: #ffffff;
  --ink: #111217;
  --ink-soft: #272933;
  --muted: #666977;
  --muted-dark: #a6a9b7;
  --line: rgba(17, 18, 23, 0.10);
  --line-strong: rgba(17, 18, 23, 0.16);
  --line-dark: rgba(255, 255, 255, 0.12);
  --accent: #f39a70;
  --accent-soft: #ffd8c4;
  --accent-pale: #fff2e9;
  --radius: 24px;
  --shadow: 0 24px 60px rgba(17, 18, 23, 0.08);
  --shadow-lg: 0 36px 90px rgba(10, 10, 16, 0.18);
  --shell: min(1200px, calc(100vw - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg-paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, video { display: block; max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 200; padding: 10px 14px; background: white; color: black; border-radius: 8px; }
.skip-link:focus { top: 12px; }
section[id] { scroll-margin-top: 84px; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-light { background: var(--bg-light); }
.section-paper { background: var(--bg-paper); }
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 90; height: 72px;
  background: rgba(9, 9, 13, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #fff;
}
.nav { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.02em; }
.brand-mark {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft)); color: #1e1410; font-weight: 900;
  box-shadow: 0 10px 28px rgba(243,154,112,.28);
}
.nav-links { display: flex; gap: 28px; margin-left: auto; font-size: 14px; color: #cdd0da; }
.nav-links a:hover { color: #fff; }
.nav-paper { padding: 9px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.16); font-size: 14px; }
.nav-paper:hover { background: #fff; color: #111; }
.hero {
  position: relative; overflow: hidden; padding: 118px 0 56px;
  background:
    radial-gradient(900px 500px at 15% 0%, rgba(243,154,112,.18), transparent 58%),
    radial-gradient(700px 340px at 85% 10%, rgba(124,146,255,.10), transparent 60%),
    linear-gradient(180deg, #090a0e 0%, #0d0d12 100%);
}
.hero-noise { position: absolute; inset: 0; opacity: .18; background-image: radial-gradient(rgba(255,255,255,.12) .6px, transparent .6px); background-size: 24px 24px; mask-image: linear-gradient(180deg, rgba(0,0,0,.65), transparent); pointer-events: none; }
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.1fr); gap: 38px; align-items: center;
}
.eyebrow { color: #f7c7ab; text-transform: uppercase; letter-spacing: .16em; font-size: 11px; font-weight: 700; }
.eyebrow-dark { color: #9e6248; }
.hero h1 { margin: 12px 0 10px; font-size: clamp(84px, 14vw, 162px); line-height: .84; letter-spacing: -.08em; }
.hero-title { margin: 0; max-width: 680px; font-size: clamp(28px, 3.2vw, 48px); line-height: 1.08; font-weight: 650; letter-spacing: -.045em; }
.hero-lead { margin: 20px 0 0; max-width: 650px; color: #c0c3cf; font-size: 18px; line-height: 1.7; }
.hero-actions, .left-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.button { appearance: none; border: 0; border-radius: 999px; padding: 12px 18px; cursor: pointer; transition: transform .18s ease, opacity .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: #fff; color: #111; font-weight: 650; }
.button-secondary { color: #fff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); }
.button[aria-disabled="true"] { opacity: .48; cursor: default; pointer-events: none; }
.authors { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 4px 14px; color: #d8dbe4; font-size: 13px; line-height: 1.7; }
.authors span { white-space: nowrap; }
.authors sup, .affiliations sup { position: relative; top: -.15em; font-size: .72em; color: #f7c7ab; font-weight: 700; }
.affiliations { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 4px 14px; color: #9497a2; font-size: 11px; line-height: 1.65; }
.affiliations span { white-space: nowrap; }
.hero-media {
  display: grid; grid-template-columns: 1.15fr .85fr; grid-template-rows: auto auto; gap: 16px; align-items: stretch;
}
.hero-card {
  overflow: hidden; border-radius: 26px; border: 1px solid rgba(255,255,255,.10);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow: var(--shadow-lg);
}
.hero-card-large { grid-row: 1 / span 2; }
.hero-card-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,.08);
  color: #eef1f7; font-size: 12px;
}
.hero-card-top span { display: inline-flex; padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,.08); color: #fff; font-weight: 600; }
.hero-card-top small { color: #adb0bc; font-size: 11px; }
.hero-card video { width: 100%; aspect-ratio: 4 / 5; object-fit: contain; background: #0f1015; }
.hero-strip {
  position: relative; z-index: 1; margin-top: 28px; display: grid; grid-template-columns: repeat(3,1fr); gap: 16px;
}
.hero-strip article {
  padding: 18px 20px; border-radius: 18px; border: 1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.03); box-shadow: 0 16px 38px rgba(0,0,0,.16);
}
.hero-strip strong { display: block; margin-bottom: 8px; font-size: 14px; }
.hero-strip span { color: #aeb2be; font-size: 13px; line-height: 1.6; }
.overview, .demo, .method, .results, .transition, .applications, .waiting, .paper { padding: 110px 0; }
h2 { margin: 14px 0 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.02; letter-spacing: -.055em; }
.overview-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: center; }
.overview-lead { max-width: 460px; margin: 22px 0 0; color: var(--muted); font-size: 17px; line-height: 1.72; }
.overview-figure {
  padding: 26px; border-radius: 30px; border: 1px solid var(--line); background:
  radial-gradient(520px 180px at 10% 0%, rgba(243,154,112,.09), transparent 58%),
  linear-gradient(180deg, #ffffff, #faf8f3 100%);
  box-shadow: var(--shadow);
}
.overview-row-inputs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.overview-row-inputs span, .flow-tags span, .router-pill-row span, .router-tags span, .live-pill, .sound-badge { white-space: nowrap; }
.overview-row-inputs span {
  padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.72); border: 1px solid var(--line); color: #353741; font-size: 12px;
}
.overview-flow { display: grid; grid-template-columns: .9fr auto 1.08fr auto .92fr; gap: 12px; align-items: stretch; }
.flow-card {
  padding: 20px; border-radius: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.78);
  box-shadow: 0 14px 34px rgba(17,18,23,.05);
}
.flow-card-core {
  color: #fff; background: radial-gradient(280px 160px at 80% 0%, rgba(243,154,112,.16), rgba(243,154,112,0) 60%), linear-gradient(180deg, #17171d, #111116);
  border-color: rgba(255,255,255,.06);
  box-shadow: 0 22px 46px rgba(10,10,16,.16);
}
.flow-card small { display: block; margin-bottom: 8px; color: #8a8d98; text-transform: uppercase; letter-spacing: .12em; font-size: 9px; font-weight: 700; }
.flow-card strong { display: block; margin-bottom: 10px; font-size: 18px; letter-spacing: -.03em; }
.flow-card p { margin: 0; color: #666975; font-size: 13px; line-height: 1.65; }
.flow-card-core small { color: #9b9daa; }
.flow-card-core p { color: #babdca; }
.flow-card p b { color: inherit; }
.flow-card-core p b { color: #fff; }
.flow-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.flow-tags span {
  padding: 7px 10px; border-radius: 999px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.10);
  color: #f4f5f8; font-size: 11px;
}
.flow-arrow { display: grid; place-items: center; color: #a1a4ad; font-size: 18px; }
.overview-loop {
  margin-top: 16px; display: grid; grid-template-columns: auto 1fr auto auto; gap: 12px; align-items: center;
  padding: 14px 16px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.7); color: #5f626f; font-size: 13px;
}
.overview-loop div { height: 1px; background: linear-gradient(90deg, rgba(243,154,112,.32), rgba(17,18,23,.10)); }
.overview-loop small { justify-self: end; color: #8b8d98; text-transform: uppercase; letter-spacing: .1em; font-size: 10px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 50px; margin-bottom: 44px; }
.section-heading > p { max-width: 480px; margin: 0 0 6px; color: var(--muted); font-size: 16px; line-height: 1.68; }
.section-heading-dark > p { color: var(--muted-dark); }
.heading-with-badge { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.sound-badge { padding: 7px 10px; border-radius: 999px; border: 1px solid rgba(154,96,73,.26); background: var(--accent-pale); color: #7c4a35; font-size: 10px; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.demo-panel {
  display: grid; grid-template-columns: 220px 1fr; overflow: hidden; border-radius: 30px; border: 1px solid var(--line); background: linear-gradient(135deg, #fffdfa, #f8f5ef 70%, #efe8dd 100%); box-shadow: var(--shadow);
}
.demo-tabs { display: flex; flex-direction: column; gap: 8px; padding: 18px; border-right: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.34)); }
.demo-tab {
  appearance: none; text-align: left; border: 1px solid transparent; border-radius: 16px; background: transparent; color: #30323a; padding: 14px 16px; cursor: pointer;
  transition: background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease;
}
.demo-tab:hover { transform: translateX(2px); border-color: rgba(243,154,112,.28); }
.demo-tab.active, .demo-tab[aria-selected="true"] { background: #121319; color: #fff; box-shadow: 0 16px 32px rgba(17,18,23,.14); }
.demo-tab:focus-visible { outline: 2px solid rgba(243,154,112,.7); outline-offset: 2px; }
.demo-stage { display: grid; grid-template-columns: .72fr 1.18fr; gap: 28px; align-items: center; padding: 28px; }
.demo-meta h3 { margin: 14px 0 10px; font-size: 28px; letter-spacing: -.04em; }
.demo-meta p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.demo-meta-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.live-pill { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.78); color: #4a4d57; font-size: 11px; font-weight: 650; text-transform: uppercase; letter-spacing: .08em; }
.live-pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px rgba(243,154,112,.16); }
.audio-toggle {
  appearance: none; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: rgba(255,255,255,.86); color: #14151a; cursor: pointer; font-size: 12px; font-weight: 650;
}
.demo-stage > video {
  width: 100%; max-width: 560px; justify-self: center; border-radius: 24px; border: 1px solid var(--line);
  background: #101116; box-shadow: 0 24px 52px rgba(17,18,23,.14);
}
.method-overview { display: grid; gap: 26px; }
.method-router {
  padding: 24px; border-radius: 26px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow);
}
.router-pill-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.router-pill-row span, .router-tags span {
  padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: #faf9f6; color: #353842; font-size: 12px;
}
.router-box {
  margin-top: 16px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; padding: 20px 22px;
  border-radius: 20px; color: #fff; background: #13141a; box-shadow: 0 24px 56px rgba(15,15,21,.14);
}
.router-mark {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, var(--accent), var(--accent-soft)); color: #241711; font-size: 20px;
}
.router-box small { display: block; color: #9295a3; text-transform: uppercase; letter-spacing: .12em; font-size: 9px; font-weight: 700; }
.router-box strong { font-size: 20px; letter-spacing: -.02em; }
.router-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.router-tags span { border-color: rgba(255,255,255,.10); background: rgba(255,255,255,.06); color: #fff; }
.pipeline-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.pipeline-card {
  padding: 18px; border-radius: 24px; border: 1px solid var(--line); background: linear-gradient(180deg, #ffffff, #faf8f4); box-shadow: var(--shadow);
}
.pipeline-card-accent { border-color: rgba(243,154,112,.34); }
.pipeline-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.pipeline-head span {
  display: grid; place-items: center; width: 34px; height: 26px; border-radius: 999px; background: #17181f; color: #fff; font-size: 10px; font-weight: 700;
}
.pipeline-head strong { font-size: 18px; letter-spacing: -.02em; }
.pipeline-media {
  display: flex; justify-content: center; padding: 10px; border-radius: 18px; background: #f1eee8; border: 1px solid rgba(17,18,23,.06);
}
.pipeline-media video, .application-media video, .waiting-card video, .video-pair video, .comparison-card video {
  width: 100%; background: #101116;
}
.pipeline-media video { max-width: 270px; }
.pipeline-card p { margin: 14px 0 0; color: var(--muted); font-size: 14px; line-height: 1.68; }
.metrics {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-bottom: 34px; overflow: hidden; border-radius: 20px; border: 1px solid var(--line-dark); background: var(--line-dark);
}
.metrics article { padding: 30px; background: #111217; }
.metrics strong { display: block; font-size: clamp(36px, 4vw, 54px); letter-spacing: -.05em; }
.metrics span { color: #868a96; font-size: 12px; letter-spacing: .09em; text-transform: uppercase; }
.comparison-block {
  padding: 22px; border-radius: 28px; border: 1px solid var(--line-dark); background:
  radial-gradient(520px 180px at 10% 0%, rgba(243,154,112,.10), transparent 50%), #0f1015; box-shadow: 0 28px 70px rgba(0,0,0,.22);
}
.comparison-row-block { display: grid; gap: 14px; }
.comparison-row-block + .comparison-row-block { margin-top: 22px; }
.comparison-row-block-last { padding-top: 20px; border-top: 1px solid rgba(255,255,255,.08); }
.comparison-row-title { width: max-content; margin: 0 auto; padding: 8px 16px; border-radius: 999px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.05); color: #f2f3f6; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.comparison-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
.comparison-card { padding: 10px; border-radius: 18px; border: 1px solid var(--line-dark); background: #17181d; }
.method-name { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 2px 4px 12px; }
.method-name strong { font-size: 13px; }
.method-name span { color: #747987; font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.comparison-card video { border-radius: 14px; }
.diva-card { border-color: rgba(243,154,112,.7); box-shadow: inset 0 0 0 1px rgba(243,154,112,.09), 0 0 54px rgba(243,154,112,.08); }
.diva-card .method-name span { color: #f4b08f; }
.comparison-caption { margin: 14px 0 0; text-align: center; color: #6f7381; font-size: 12px; }
.transition-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.transition-case { padding: 18px; border-radius: 24px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.transition-case h3 { margin: 2px 2px 14px; font-size: 18px; letter-spacing: -.02em; }
.video-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.video-pair figure { margin: 0; overflow: hidden; border-radius: 16px; border: 1px solid var(--line); background: #f3f0ea; }
.video-pair figure.ours, .video-pair .ours { border-color: rgba(243,154,112,.46); }
.video-pair video { object-fit: contain; }
.video-pair figcaption { padding: 9px; text-align: center; font-size: 11px; color: #777a86; }
.video-pair .ours figcaption { background: var(--accent-pale); color: #8d5037; font-weight: 700; }
.preference-strip {
  margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr auto; gap: 1px; align-items: stretch;
  overflow: hidden; border-radius: 18px; border: 1px solid var(--line); background: var(--line);
}
.preference-strip > div, .preference-strip > p { margin: 0; padding: 18px 22px; background: #fff; }
.preference-strip strong { margin-right: 8px; font-size: 28px; letter-spacing: -.04em; }
.preference-strip span, .preference-strip p { color: var(--muted); font-size: 12px; }
.application-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.application-card {
  display: grid; gap: 16px; align-content: start; padding: 18px; border-radius: 24px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow);
}
.application-copy span { color: #a1664e; text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 700; }
.application-copy h3 { margin: 10px 0 8px; font-size: 26px; line-height: 1.04; letter-spacing: -.04em; }
.application-copy p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.68; }
.application-copy strong { display: inline-block; margin-top: 14px; color: #6e412d; font-size: 12px; }
.application-media { display: flex; justify-content: center; padding: 10px; border-radius: 18px; background: #f2efe9; border: 1px solid rgba(17,18,23,.06); }
.application-media video { max-width: 270px; }
.waiting-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.waiting-card {
  padding: 14px; border-radius: 22px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow);
}
.waiting-card video { border-radius: 16px; }
.waiting-card p { margin: 10px 4px 2px; color: var(--muted); font-size: 13px; }
.paper-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.paper-grid p { color: var(--muted-dark); }
.paper-grid h2 { max-width: 660px; }
pre {
  overflow: auto; margin: 0; padding: 24px; border-radius: 22px; border: 1px solid var(--line-dark); background: #111217; color: #d0d4de;
  font: 12px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap;
}
.footer { background: #fff; border-top: 1px solid var(--line); }
.footer-inner { min-height: 110px; display: grid; grid-template-columns: 1fr auto auto; gap: 36px; align-items: center; color: #787b86; font-size: 12px; }
.brand-dark { color: #111; font-size: 15px; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1080px) {
  .hero-grid, .overview-grid, .paper-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 920px; }
  .hero-media { grid-template-columns: repeat(3,1fr); grid-template-rows: auto; }
  .hero-card-large { grid-row: auto; }
  .overview-flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); min-height: 18px; }
  .demo-panel { grid-template-columns: 1fr; }
  .demo-tabs { flex-direction: row; border-right: 0; border-bottom: 1px solid var(--line); }
  .demo-tab { flex: 1; text-align: center; }
  .demo-stage { grid-template-columns: .82fr 1.18fr; }
  .pipeline-grid, .application-grid, .transition-grid { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
  :root { --shell: min(100vw - 24px, 1200px); }
  .site-header { height: 64px; }
  .nav-links { display: none; }
  .hero { padding-top: 100px; }
  .hero h1 { font-size: 84px; }
  .hero-title { font-size: 30px; }
  .hero-lead { font-size: 15px; }
  .authors { font-size: 11px; gap: 3px 10px; }
  .affiliations { font-size: 10px; gap: 3px 10px; }
  .hero-media { grid-template-columns: 1fr; }
  .hero-strip { grid-template-columns: 1fr; }
  .overview, .demo, .method, .results, .transition, .applications, .waiting, .paper { padding: 78px 0; }
  h2 { font-size: 42px; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading > p { margin-top: 18px; }
  .overview-figure, .method-router, .comparison-block, .transition-case, .application-card, .waiting-card, pre { border-radius: 20px; }
  .overview-loop { grid-template-columns: 1fr; text-align: center; }
  .overview-loop small { justify-self: center; }
  .demo-stage { display: block; padding: 24px; }
  .demo-meta { padding-bottom: 18px; }
  .demo-stage > video { max-width: none; }
  .router-box { grid-template-columns: auto 1fr; }
  .router-tags { grid-column: 1 / 3; justify-content: center; }
  .metrics { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .preference-strip { grid-template-columns: 1fr; }
  .waiting-grid { grid-template-columns: 1fr; }
  .paper-grid { gap: 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 8px; padding: 26px 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}