:root {
  --paper: #f2f1e6;
  --paper-deep: #e3e8d9;
  --ink: #18372f;
  --ink-soft: #536b62;
  --navy: #174b3b;
  --teal: #2f7d5c;
  --teal-soft: #dceade;
  --coral: #ae684e;
  --sun: #cdb469;
  --white: #fffdf8;
  --line: rgba(18, 42, 59, 0.16);
  --shadow: 0 20px 60px rgba(25, 46, 57, 0.12);
  --radius: 22px;
  --shell: min(1240px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 5%, rgba(93, 151, 113, 0.16), transparent 34rem),
    var(--paper);
  font-family: "Sora", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

body::selection {
  color: var(--white);
  background: var(--teal);
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.page-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.hero {
  position: relative;
  padding: 24px 0 56px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(18, 42, 59, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 42, 59, 0.045) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

.hero-shell {
  position: relative;
  z-index: 1;
  width: min(1500px, calc(100vw - 48px));
}

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(22, 123, 117, 0.28);
  border-radius: 999px;
  pointer-events: none;
}

.hero-orbit-a {
  width: 46vw;
  height: 46vw;
  top: -22vw;
  right: -8vw;
  animation: orbit-drift 14s ease-in-out infinite alternate;
}

.hero-orbit-b {
  width: 22vw;
  height: 22vw;
  top: 6vw;
  right: 4vw;
  border-color: rgba(223, 107, 79, 0.3);
  animation: orbit-drift 11s ease-in-out -3s infinite alternate-reverse;
}

.eyebrow,
.section-kicker,
.dialog-kicker {
  color: var(--teal);
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-title {
  display: block;
  max-width: 1040px;
  margin: 0;
  font-family: "Newsreader", serif;
  line-height: 1;
  letter-spacing: -0.045em;
}

.hero-title > span {
  display: block;
  font-size: clamp(4.2rem, 7vw, 7.2rem);
  font-weight: 600;
  color: var(--white);
  text-shadow: 0 6px 28px rgba(0, 0, 0, 0.45);
  white-space: nowrap;
}

.hero-title small {
  display: block;
  margin-top: 12px;
  max-width: 900px;
  color: rgba(255, 253, 248, 0.9);
  font-size: clamp(1.18rem, 1.45vw, 1.48rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.5);
}

.tldr-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  max-width: none;
  margin: 30px auto 0;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tldr-card > span {
  color: var(--coral);
  font-family: "DM Mono", monospace;
  font-size: 0.77rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.tldr-card p {
  margin: 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: clamp(1.12rem, 1.55vw, 1.42rem);
  line-height: 1.4;
}

.author-block {
  max-width: 930px;
  margin-top: 28px;
}

.author-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 18px;
  font-size: 0.94rem;
  font-weight: 600;
}

.author-list a {
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.author-list a:hover {
  color: var(--teal);
  text-decoration: underline;
}

.author-list sup,
.affiliation-list sup,
.author-notes sup {
  margin-left: 1px;
  color: var(--teal);
  font-family: "DM Mono", monospace;
  font-size: 0.58em;
  font-weight: 700;
}

.affiliation-list sup,
.author-notes sup {
  margin-right: 3px;
}

.author-list span:not(:last-child)::after {
  content: "";
}

.affiliation-list {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.author-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-stage {
  position: relative;
  display: flex;
  min-height: min(820px, calc(100svh - 96px));
  overflow: hidden;
  border: 1px solid rgba(18, 42, 59, 0.16);
  border-radius: 28px;
  background: #07120e;
  box-shadow: 0 34px 92px rgba(18, 42, 59, 0.22);
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 24% 72%, rgba(3, 16, 17, 0.34) 0%, rgba(3, 16, 17, 0.16) 36%, rgba(3, 16, 17, 0.03) 68%, transparent 100%),
    linear-gradient(0deg, rgba(3, 16, 17, 0.16) 0%, rgba(3, 16, 17, 0.04) 34%, transparent 68%),
    linear-gradient(90deg, rgba(3, 16, 17, 0.12) 0%, rgba(3, 16, 17, 0.03) 34%, transparent 70%);
}

.hero-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 253, 248, 0.18), inset 0 -88px 110px rgba(7, 18, 14, 0.08);
}

.hero-showcase,
.hero-mosaic {
  position: absolute;
  inset: 0;
  margin: 0;
}

.hero-mosaic {
  overflow: hidden;
}

.hero-mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: relative;
  z-index: 2;
  align-self: flex-end;
  width: min(980px, 70%);
  padding: clamp(32px, 5vw, 72px);
}

.hero-stage .author-block {
  max-width: 900px;
  margin-top: 26px;
}

.hero-stage .author-list,
.hero-stage .affiliation-list,
.hero-stage .author-notes {
  color: rgba(255, 253, 248, 0.82);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.38);
}

.hero-stage .author-list a {
  color: var(--white);
}

.hero-stage .author-list a:hover {
  color: #f4dfad;
}

.hero-stage .author-list sup,
.hero-stage .affiliation-list sup,
.hero-stage .author-notes sup {
  color: #e0c178;
}

.hero-stage .button {
  border-color: rgba(255, 253, 248, 0.42);
  color: var(--white);
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.18), rgba(255, 253, 248, 0.08));
  box-shadow: inset 0 1px 0 rgba(255, 253, 248, 0.22), 0 12px 28px rgba(3, 16, 17, 0.18);
  backdrop-filter: blur(16px) saturate(1.14);
}

.hero-stage .button-primary {
  color: var(--white);
  border-color: rgba(244, 223, 173, 0.7);
  background: linear-gradient(180deg, rgba(244, 223, 173, 0.24), rgba(255, 253, 248, 0.1));
  box-shadow: inset 0 1px 0 rgba(255, 253, 248, 0.28), 0 14px 32px rgba(3, 16, 17, 0.2);
}

.hero-stage .button-secondary:hover,
.hero-stage .button-primary:hover {
  color: var(--white);
  border-color: rgba(244, 223, 173, 0.92);
  background: linear-gradient(180deg, rgba(244, 223, 173, 0.32), rgba(255, 253, 248, 0.14));
  box-shadow: inset 0 1px 0 rgba(255, 253, 248, 0.34), 0 18px 38px rgba(3, 16, 17, 0.24);
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(18, 42, 59, 0.16);
}

.button-primary {
  color: var(--white);
  background: var(--navy);
}

.button-secondary {
  background: rgba(255, 253, 248, 0.6);
}

.button.is-placeholder {
  cursor: default;
  opacity: 0.82;
}

.button-icon {
  font-family: "DM Mono", monospace;
}

.hero-claims {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: 1040px;
  margin-top: 42px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--line);
}

.hero-claims article {
  padding: 20px 22px;
  background: rgba(255, 253, 248, 0.78);
}

.hero-claims strong,
.hero-claims span {
  display: block;
}

.hero-claims strong {
  color: var(--teal);
  font-family: "Newsreader", serif;
  font-size: 1.35rem;
  line-height: 1.1;
}

.hero-claims span {
  margin-top: 7px;
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.cache-stage {
  margin-top: 62px;
  padding: 24px 26px 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 253, 248, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.cache-heading,
.cache-lanes {
  display: grid;
  grid-template-columns: 1fr 170px 1fr;
  gap: 18px;
  align-items: center;
}

.cache-heading {
  margin-bottom: 12px;
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cache-heading span:last-child {
  grid-column: 3;
}

.cache-lane {
  display: flex;
  gap: 10px;
  min-width: 0;
  padding: 15px;
  border-radius: 16px;
  background: rgba(18, 42, 59, 0.055);
}

.cache-token {
  display: grid;
  place-items: center;
  width: 20%;
  min-width: 42px;
  aspect-ratio: 1.25;
  border: 1px solid currentColor;
  border-radius: 10px;
  font-family: "DM Mono", monospace;
  font-size: 0.76rem;
  font-style: normal;
  animation: token-pulse 4s ease-in-out infinite;
}

.cache-token:nth-child(2) { animation-delay: 0.18s; }
.cache-token:nth-child(3) { animation-delay: 0.36s; }
.cache-token:nth-child(4) { animation-delay: 0.54s; }
.cache-token:nth-child(5) { animation-delay: 0.72s; }

.cache-token.sink {
  color: #8a6c2f;
  background: #f4dfad;
}

.cache-token.generated,
.legend-dot.generated {
  color: #4d6673;
  background: #dce3e4;
}

.cache-token.data,
.legend-dot.data {
  color: var(--teal);
  background: var(--teal-soft);
}

.cache-token.recent,
.legend-dot.recent {
  color: var(--coral);
  background: #f6d9ce;
}

.cache-token.current {
  color: var(--white);
  background: var(--navy);
}

.distill-arrow {
  position: relative;
  height: 2px;
  background: var(--coral);
}

.distill-arrow::before,
.distill-arrow::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--coral);
}

.distill-arrow::before {
  left: 0;
  border-left: 2px solid var(--coral);
  transform: rotate(-45deg);
}

.distill-arrow::after {
  right: 0;
  border-right: 2px solid var(--coral);
  transform: rotate(45deg);
}

.distill-arrow span {
  position: absolute;
  left: 50%;
  bottom: 9px;
  width: 180px;
  transform: translateX(-50%);
  color: var(--coral);
  text-align: center;
  font-family: "DM Mono", monospace;
  font-size: 0.62rem;
}

.cache-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 22px;
  margin-top: 15px;
  color: var(--ink-soft);
  font-size: 0.69rem;
}

.cache-legend span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.section-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 239, 228, 0.88);
  backdrop-filter: blur(18px);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 66px;
}

.nav-mark {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
  color: var(--navy);
  text-decoration: none;
}

.nav-logo {
  display: block;
  width: auto;
  object-fit: contain;
  filter: saturate(0.96);
  transition: opacity 160ms ease, transform 160ms ease;
}

.nav-mark:hover .nav-logo {
  opacity: 0.78;
  transform: translateY(-1px);
}

.nav-logo-meituan {
  height: 34px;
  max-width: 150px;
}

.nav-logo-hkust {
  height: 39px;
  max-width: 112px;
}

.nav-logo-cityu {
  height: 34px;
  max-width: 82px;
}

.nav-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  white-space: nowrap;
  transition: color 150ms ease;
}

.nav-links a:hover {
  color: var(--coral);
}

.section {
  padding: 92px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 54px;
  align-items: end;
  margin: 12px 0 42px;
}

.section-heading-wide {
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
}

.section-title {
  margin: 0 0 24px;
  font-size: clamp(2rem, 2.8vw, 2.65rem);
}

.section-title-small {
  font-size: clamp(2rem, 2.8vw, 2.65rem);
}

.section-intro {
  max-width: 960px;
  margin-bottom: 42px;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  line-height: 1.48;
}

h2,
h3,
p {
  margin-top: 0;
}

h2,
h3 {
  font-family: "Newsreader", serif;
  font-weight: 600;
  letter-spacing: -0.035em;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: 0.98;
}

h3 {
  font-size: 1.7rem;
  line-height: 1.05;
}

.section-heading p,
.split-section p,
.quant-layout > div > p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.paper-figure,
.pipeline-figure {
  margin: 0;
}

.paper-figure img,
.pipeline-figure img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.paper-figure figcaption,
.pipeline-figure figcaption {
  max-width: 1080px;
  margin: 15px auto 0;
  color: var(--ink-soft);
  text-align: center;
  font-size: 0.84rem;
  line-height: 1.65;
}

.motivation-diagram {
  margin-top: 44px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 58px;
  align-items: start;
}

.sticky-copy {
  position: sticky;
  top: 105px;
}

.sticky-copy h2 {
  margin: 12px 0 28px;
}

.insight-card {
  margin: 0;
  padding: 22px;
  border-left: 4px solid var(--coral);
  border-radius: 0 16px 16px 0;
  background: rgba(255, 253, 248, 0.7);
}

.motivation-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 54px;
  align-items: start;
  margin-bottom: 38px;
}

.motivation-copy > p {
  margin: 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  line-height: 1.5;
}

.insight-card span,
.insight-card strong {
  display: block;
}

.insight-card span {
  color: var(--coral);
  font-family: "DM Mono", monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
}

.insight-card strong {
  margin-top: 7px;
  font-family: "Newsreader", serif;
  font-size: 1.35rem;
  line-height: 1.2;
}

.cache-diagnosis {
  margin-top: 44px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(24, 55, 47, 0.13);
  border-radius: 24px;
  background: rgba(255, 253, 248, 0.72);
  box-shadow: 0 22px 70px rgba(24, 55, 47, 0.08);
}

.cache-diagnosis-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(18px, 4vw, 48px);
  align-items: end;
  margin-bottom: 22px;
}

.cache-diagnosis-head h3 {
  max-width: 680px;
  margin: 8px 0 0;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.98;
}

.cache-diagnosis-head p {
  margin: 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.45;
}

.cache-diagnosis-stage {
  position: relative;
}

.cache-page-arrow {
  position: absolute;
  top: calc(50% + 34px);
  z-index: 4;
  display: grid;
  place-items: center;
  width: 46px;
  height: 64px;
  border: 1px solid rgba(24, 55, 47, 0.18);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 253, 248, 0.86);
  box-shadow: 0 12px 34px rgba(24, 55, 47, 0.16);
  cursor: pointer;
  font-family: "Newsreader", serif;
  font-size: 3rem;
  line-height: 1;
  transform: translateY(-50%);
  transition: color 150ms ease, background 150ms ease, transform 150ms ease;
}

.cache-page-arrow:hover {
  color: var(--white);
  background: var(--teal);
  transform: translateY(-50%) scale(1.04);
}

.cache-page-arrow-prev {
  left: -23px;
}

.cache-page-arrow-next {
  right: -23px;
}

.cache-diagnosis-case {
  display: none;
}

.cache-diagnosis-case.is-active {
  display: block;
}

.cache-diagnosis-case header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid rgba(24, 55, 47, 0.11);
  border-bottom: 0;
  border-radius: 18px 18px 0 0;
  background: rgba(238, 245, 237, 0.68);
}

.cache-case-title {
  min-width: 0;
}

.cache-case-title span {
  display: block;
  color: var(--coral);
  font-family: "DM Mono", monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
}

.cache-diagnosis-case h4 {
  margin: 0;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  line-height: 1.08;
}

.cache-diagnosis-case .cache-compare-button {
  justify-self: end;
}

.cache-video-frame {
  position: relative;
}

.video-pair.cache-video-pair {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid rgba(24, 55, 47, 0.16);
  border-radius: 0 0 18px 18px;
}

.cache-video-pair .video-cell video {
  display: block;
}

.video-cell.is-reference .video-label {
  background: rgba(112, 82, 45, 0.9);
}

.cache-improvement {
  margin: 16px 18px 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.42;
}

.cache-improvement strong {
  color: var(--coral);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.cache-prompt-preview {
  margin-top: 4px;
  padding-bottom: 8px;
}

.cache-page-count {
  margin-top: 14px;
  color: var(--ink-soft);
  text-align: center;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
}

.result-taxonomy {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.result-taxonomy article {
  position: relative;
  min-height: 132px;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.58);
}

.result-taxonomy strong,
.result-taxonomy p {
  position: relative;
  z-index: 1;
  display: block;
}

.result-taxonomy strong {
  font-family: "Newsreader", serif;
  font-size: 1.35rem;
}

.result-taxonomy p {
  margin: 7px 0 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.taxonomy-index {
  position: absolute;
  right: 14px;
  bottom: -25px;
  color: rgba(22, 123, 117, 0.1);
  font-family: "Newsreader", serif;
  font-size: 6.5rem;
  font-weight: 700;
  line-height: 1;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: center;
  margin: 0 0 30px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.64);
}

.results-summary {
  margin: -8px 0 18px;
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  text-align: right;
  text-transform: uppercase;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.filter-group > span {
  margin-right: 4px;
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
  font-size: 0.63rem;
  text-transform: uppercase;
}

.filter-chip {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 0.72rem;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease;
}

.filter-chip:hover,
.filter-chip.is-active {
  color: var(--white);
  border-color: var(--navy);
  background: var(--navy);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.result-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 253, 248, 0.82);
  box-shadow: 0 12px 40px rgba(18, 42, 59, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.result-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 18px 14px;
}

.card-actions {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

.card-head h3 {
  margin: 2px 0 0;
  font-size: 1.55rem;
}

.case-meta {
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.category-badge {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--teal);
  background: var(--teal-soft);
  font-size: 0.64rem;
  font-weight: 700;
}

.category-badge[data-category="dynamics"] {
  color: #985038;
  background: #f6d9ce;
}

.category-badge[data-category="both"] {
  color: #73551f;
  background: #f4dfad;
}

.compare-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 0.58rem;
  white-space: nowrap;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease;
}

.compare-button:hover {
  color: var(--white);
  border-color: var(--teal);
  background: var(--teal);
}

.video-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--navy);
}

.video-cell {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #091b24;
}

.video-cell video {
  width: 100%;
  aspect-ratio: 832 / 480;
  object-fit: cover;
  background: #091b24;
}

.video-label {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--white);
  background: rgba(9, 27, 36, 0.74);
  backdrop-filter: blur(8px);
  font-family: "DM Mono", monospace;
  font-size: 0.61rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.video-cell.is-ours .video-label {
  background: rgba(22, 123, 117, 0.9);
}

.video-status {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 4px 7px;
  border-radius: 999px;
  color: var(--white);
  background: rgba(9, 27, 36, 0.66);
  font-family: "DM Mono", monospace;
  font-size: 0.55rem;
}

.video-status::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--coral);
}

.prompt-preview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  min-height: 76px;
  padding: 13px 18px 16px;
}

.prompt-preview p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: 0.93rem;
  line-height: 1.35;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.prompt-button {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 0.59rem;
  white-space: nowrap;
}

.prompt-button:hover {
  color: var(--white);
  border-color: var(--teal);
  background: var(--teal);
}

.empty-state {
  grid-column: 1 / -1;
  padding: 80px 20px;
  color: var(--ink-soft);
  text-align: center;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 38px;
}

.pagination-button {
  min-width: 40px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink-soft);
  background: rgba(255, 253, 248, 0.72);
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease;
}

.pagination-button:hover:not(:disabled),
.pagination-button.is-active {
  color: var(--white);
  border-color: var(--navy);
  background: var(--navy);
}

.pagination-button:disabled {
  cursor: not-allowed;
  opacity: 0.36;
}

.pagination-ellipsis {
  display: grid;
  place-items: center;
  min-width: 30px;
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
}

.section-method {
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 10%, rgba(86, 142, 105, 0.16), transparent 28rem),
    linear-gradient(145deg, #e7ece1, #f2f1e6 72%);
}

.section-method .section-kicker {
  color: var(--teal);
}

.section-method .section-intro {
  color: var(--ink-soft);
}

.pipeline-figure {
  padding: 16px;
  border-radius: 26px;
  background: var(--white);
}

.pipeline-figure img {
  border: 0;
  box-shadow: none;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--line);
}

.method-steps article {
  padding: 28px;
  background: rgba(255, 253, 248, 0.8);
}

.method-steps span {
  color: var(--teal);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
}

.method-steps h3 {
  margin: 28px 0 12px;
}

.method-steps p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.ablation-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.ablation-card {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
  box-shadow: 0 12px 42px rgba(18, 42, 59, 0.09);
}

.ablation-card--target,
.ablation-card--trajectory {
  padding: 22px;
}

.ablation-card-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 0 0 18px;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.ablation-card-heading strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: 1.38rem;
  line-height: 1.06;
}

.ablation-card-heading p {
  margin: 0;
  max-width: 760px;
}

.ablation-pill {
  display: inline-flex;
  width: max-content;
  align-items: center;
  justify-content: center;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--white);
  background: linear-gradient(135deg, rgba(14, 49, 69, 0.94), rgba(24, 129, 113, 0.88));
  font-family: "DM Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ablation-video-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ablation-video-case {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(14, 49, 69, 0.11);
  border-radius: 18px;
  background: #f8faf4;
}

.ablation-video-case-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px 13px;
  border-bottom: 1px solid rgba(14, 49, 69, 0.12);
}

.ablation-video-case-head > div {
  min-width: 0;
}

.ablation-video-case-head span {
  color: var(--teal);
  font-family: "DM Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ablation-video-case-head h3 {
  margin: 0;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.05;
  text-align: right;
}

.ablation-compare-button {
  flex: 0 0 auto;
  padding: 6px 9px;
  background: rgba(255, 255, 255, 0.72);
}

.ablation-video-pair {
  border-radius: 0;
  background: var(--navy);
  box-shadow: none;
}

.ablation-video-pair .video-cell video {
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.ablation-video-pair .video-label sub {
  font-size: 0.7em;
}

.ablation-card > figcaption:not(.ablation-card-heading) {
  padding: 24px 24px 26px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.ablation-card > figcaption:not(.ablation-card-heading) strong {
  display: block;
  margin: 13px 0 7px;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: 1.35rem;
  line-height: 1.08;
}

.section-quant {
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 90%, rgba(72, 132, 91, 0.14), transparent 26rem),
    #e8ede3;
}

.section-quant .section-kicker {
  color: var(--teal);
}

.quant-layout {
  display: block;
}

.section-quant .section-title {
  margin-bottom: 20px;
}

.quant-layout > p {
  max-width: 920px;
  margin: 0 0 30px;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: 1.25rem;
  line-height: 1.5;
}

.table-wrap {
  overflow-x: auto;
  padding: 8px;
  border: 1px solid rgba(24, 55, 47, 0.16);
  border-radius: 22px;
  background: rgba(255, 253, 248, 0.78);
  box-shadow: 0 20px 48px rgba(29, 73, 56, 0.12);
}

table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  font-size: 0.82rem;
}

th,
td {
  padding: 17px 16px;
  border-bottom: 1px solid rgba(24, 55, 47, 0.12);
  text-align: right;
}

th:first-child,
td:first-child {
  text-align: left;
}

th {
  color: var(--ink-soft);
  background: rgba(47, 125, 92, 0.09);
  font-family: "DM Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:nth-child(3) td {
  border-top: 2px solid rgba(24, 55, 47, 0.18);
}

tbody tr.is-ours {
  background: rgba(196, 224, 200, 0.28);
}

.best-value {
  color: #1c684c;
  font-weight: 700;
}

.method-cell {
  min-width: 190px;
  font-weight: 600;
}

tbody tr.is-ours .method-cell {
  color: #1c684c;
}

.user-study-panel {
  margin-top: 34px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(24, 55, 47, 0.14);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(255, 253, 248, 0.92), rgba(245, 249, 239, 0.86)),
    radial-gradient(circle at 10% 0%, rgba(47, 125, 92, 0.16), transparent 24rem);
  box-shadow: 0 24px 58px rgba(29, 73, 56, 0.12);
}

.user-study-copy {
  max-width: 1020px;
}

.user-study-copy h3 {
  margin: 8px 0 12px;
  font-family: "Newsreader", serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
}

.user-study-copy p,
.user-study-note {
  margin: 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: 1.16rem;
  line-height: 1.5;
}

.preference-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  margin: 24px 0 16px;
  color: var(--ink);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.preference-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend-dot-opsdv {
  background: #164f3f;
}

.legend-dot-same {
  background: #9a9a96;
}

.legend-dot-base {
  background: #3f7594;
}

.preference-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.preference-card {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(24, 55, 47, 0.13);
  border-radius: 24px;
  background: rgba(255, 253, 248, 0.82);
}

.preference-card h4 {
  margin: 0 0 22px;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1;
  text-align: center;
}

.preference-row {
  display: grid;
  grid-template-columns: 94px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  margin: 18px 0;
}

.preference-label {
  color: var(--ink);
  font-weight: 700;
  line-height: 1.12;
}

.preference-bar {
  display: flex;
  height: 42px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(24, 55, 47, 0.08);
  box-shadow: inset 0 0 0 1px rgba(24, 55, 47, 0.08);
}

.preference-segment {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  color: var(--white);
  font-weight: 800;
  line-height: 1;
}

.preference-segment-opsdv {
  width: calc(var(--opsdv) * 1%);
  background: #164f3f;
}

.preference-segment-same {
  width: calc(var(--same) * 1%);
  background: #9a9a96;
}

.preference-segment-base {
  width: calc(var(--base) * 1%);
  background: #3f7594;
}

.user-study-note {
  max-width: 1040px;
  margin-top: 24px;
}

.abstract-layout {
  display: block;
}

.abstract-layout h2 {
  margin: 0 0 22px;
}

.abstract-layout > p {
  max-width: 1080px;
  margin: 0;
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: 1.32rem;
  line-height: 1.55;
}

.section-bibtex {
  padding-top: 70px;
}

.bibtex-card {
  position: relative;
  margin-top: 14px;
  padding: 24px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #112735;
  color: #d9e9e6;
}

.bibtex-card pre {
  margin: 0;
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  white-space: pre-wrap;
}

.copy-button {
  padding: 8px 12px;
  border: 1px solid currentColor;
  border-radius: 10px;
  color: inherit;
  background: transparent;
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 0.62rem;
}

.bibtex-card .copy-button {
  position: absolute;
  top: 16px;
  right: 16px;
  color: #d9e9e6;
}

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.footer-inner > div:first-child strong,
.footer-inner > div:first-child span {
  display: block;
}

.footer-inner > div:first-child strong {
  font-family: "Newsreader", serif;
  font-size: 1.3rem;
}

.footer-inner > div:first-child span {
  color: var(--ink-soft);
  font-size: 0.67rem;
}

.footer-inner > a {
  justify-self: end;
  color: var(--ink-soft);
  text-decoration: none;
  font-family: "DM Mono", monospace;
  font-size: 0.67rem;
}

.prompt-dialog {
  width: min(680px, calc(100vw - 34px));
  max-height: min(720px, calc(100svh - 42px));
  padding: 34px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 24px;
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 30px 100px rgba(7, 30, 40, 0.35);
}

.prompt-dialog::backdrop {
  background: rgba(7, 30, 40, 0.62);
  backdrop-filter: blur(7px);
}

.prompt-dialog h2 {
  margin: 8px 42px 18px 0;
  font-size: 2.8rem;
}

.prompt-dialog p {
  color: var(--ink-soft);
  font-family: "Newsreader", serif;
  font-size: 1.12rem;
  line-height: 1.55;
}

.dialog-close {
  position: absolute;
  top: 17px;
  right: 17px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  font-size: 1.3rem;
}

.prompt-dialog .copy-button {
  color: var(--teal);
}

.compare-dialog {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  color: var(--white);
  background: #0d211a;
}

.compare-dialog::backdrop {
  background: rgba(6, 22, 17, 0.92);
}

.compare-dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 92px;
  padding: 18px 26px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: #123126;
}

.compare-dialog-head .dialog-kicker {
  color: #9dd0aa;
}

.compare-dialog-head h2 {
  margin: 4px 0 0;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1;
}

.compare-dialog-close {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 50%;
  color: var(--white);
  background: transparent;
  cursor: pointer;
  font-size: 1.5rem;
}

.compare-dialog-videos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  height: calc(100dvh - 92px);
  background: rgba(255, 255, 255, 0.18);
}

.compare-dialog-videos figure {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #07120e;
}

.compare-dialog-videos figcaption {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 6px 11px;
  border-radius: 999px;
  color: var(--white);
  background: rgba(7, 18, 14, 0.78);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.compare-dialog-videos .is-ours figcaption {
  background: rgba(47, 125, 92, 0.92);
}

.compare-dialog-videos video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #07120e;
}

.compare-dialog-videos video::-webkit-media-controls-fullscreen-button {
  display: none;
}

.reveal-item {
  animation: reveal-up 760ms both;
}

.reveal-item:nth-child(2) { animation-delay: 80ms; }
.reveal-item:nth-child(3) { animation-delay: 150ms; }
.reveal-item:nth-child(4) { animation-delay: 220ms; }
.reveal-item:nth-child(5) { animation-delay: 290ms; }
.reveal-item:nth-child(6) { animation-delay: 360ms; }
.reveal-item:nth-child(7) { animation-delay: 430ms; }

.section.is-reveal-pending {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.section.is-reveal-pending.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

@keyframes orbit-drift {
  from { transform: translate3d(0, 0, 0) rotate(0); }
  to { transform: translate3d(-3vw, 2vw, 0) rotate(8deg); }
}

@keyframes token-pulse {
  0%, 70%, 100% { transform: translateY(0); }
  78% { transform: translateY(-4px); }
  88% { transform: translateY(2px); }
}

@media (max-width: 980px) {
  .hero-stage {
    min-height: 760px;
  }

  .hero-overlay {
    width: 100%;
  }

  .hero-title small {
    max-width: 780px;
    white-space: normal;
  }

  .section-heading,
  .section-heading-wide,
  .split-section,
  .motivation-copy,
  .cache-diagnosis-head,
  .quant-layout,
  .preference-grid,
  .abstract-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .sticky-copy {
    position: static;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .cache-heading,
  .cache-lanes {
    grid-template-columns: 1fr 90px 1fr;
  }

  .nav-links {
    margin-left: 28px;
  }
}

@media (max-width: 740px) {
  :root {
    --shell: min(100% - 28px, 1240px);
    --radius: 16px;
  }

  body {
    font-size: 15px;
  }

  .hero {
    min-height: auto;
    padding: 16px 0 42px;
  }

  .hero-shell {
    width: var(--shell);
  }

  .hero-stage {
    min-height: 680px;
    border-radius: 18px;
  }

  .hero-stage::before {
    background:
      radial-gradient(ellipse at 30% 72%, rgba(3, 16, 17, 0.48) 0%, rgba(3, 16, 17, 0.24) 42%, rgba(3, 16, 17, 0.06) 72%, transparent 100%),
      linear-gradient(0deg, rgba(3, 16, 17, 0.28) 0%, rgba(3, 16, 17, 0.08) 48%, transparent 100%);
  }

  .hero-overlay {
    padding: 24px;
  }

  .hero-title {
    margin-top: 0;
  }

  .hero-title > span {
    font-size: clamp(3.4rem, 15vw, 4.2rem);
  }

  .hero-title small {
    margin-top: 9px;
    font-size: clamp(1.22rem, 5.6vw, 1.55rem);
    line-height: 1.2;
  }

  .tldr-card {
    grid-template-columns: 1fr;
    gap: 7px;
    margin-top: 24px;
    padding: 20px 0;
  }

  .hero-claims,
  .result-taxonomy,
  .method-steps,
  .ablation-video-showcase,
  .ablation-card--trajectory {
    grid-template-columns: 1fr;
  }

  .ablation-card--target,
  .ablation-card--trajectory {
    padding: 16px;
  }

  .ablation-card-heading {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ablation-video-case-head {
    display: block;
  }

  .ablation-compare-button {
    margin-top: 10px;
  }

  .ablation-video-case-head h3 {
    margin-top: 5px;
  }

  .ablation-video-case-head h3 {
    text-align: left;
  }

  .cache-diagnosis {
    margin-top: 30px;
    padding: 14px;
    border-radius: 18px;
  }

  .cache-diagnosis-case header {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 14px;
  }

  .cache-diagnosis-case .cache-compare-button {
    justify-self: start;
  }

  .cache-page-arrow {
    top: calc(50% + 48px);
    width: 38px;
    height: 52px;
    font-size: 2.35rem;
  }

  .cache-page-arrow-prev {
    left: 8px;
  }

  .cache-page-arrow-next {
    right: 8px;
  }

  .cache-improvement {
    margin: 14px 14px 0;
  }

  .cache-prompt-preview {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px 14px 8px;
  }

  .cache-diagnosis-case h4 {
    font-size: 1.28rem;
  }

  .cache-stage {
    margin-top: 40px;
    padding: 18px 14px;
  }

  .cache-heading {
    display: none;
  }

  .cache-lanes {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .distill-arrow {
    width: 2px;
    height: 34px;
    margin: auto;
  }

  .distill-arrow::before,
  .distill-arrow::after {
    display: none;
  }

  .distill-arrow span {
    bottom: auto;
    left: 14px;
    top: 7px;
    width: 200px;
    transform: none;
    text-align: left;
  }

  .nav-inner {
    min-height: 58px;
  }

  .nav-mark {
    flex: 0 0 auto;
    gap: 9px;
  }

  .nav-logo-meituan {
    height: 27px;
    max-width: 112px;
  }

  .nav-logo-hkust {
    height: 30px;
    max-width: 80px;
  }

  .nav-logo-cityu {
    height: 26px;
    max-width: 60px;
  }

  .nav-links {
    min-width: 0;
    margin: 0;
    gap: 20px;
  }

  .preference-legend {
    justify-content: flex-start;
  }

  .preference-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .preference-label br {
    display: none;
  }

  .preference-bar {
    height: 38px;
  }

  .preference-segment {
    min-width: 30px;
    font-size: 0.82rem;
  }

  .section {
    padding: 76px 0;
  }

  h2,
  .section-title {
    font-size: clamp(2rem, 10vw, 2.5rem);
  }

  .video-pair {
    grid-template-columns: 1fr;
  }

  .video-pair.cache-video-pair {
    grid-template-columns: 1fr;
  }

  .card-head {
    align-items: flex-start;
  }

  .card-actions {
    gap: 6px;
  }

  .compare-button {
    max-width: 122px;
    white-space: normal;
  }

  .compare-dialog-head {
    min-height: 76px;
    padding: 13px 16px;
  }

  .compare-dialog-head h2 {
    font-size: 1.45rem;
  }

  .compare-dialog-videos {
    height: calc(100dvh - 76px);
  }

  .filter-bar {
    align-items: flex-start;
    padding: 13px;
  }

  .filter-group {
    width: 100%;
  }

  .footer-inner > a {
    justify-self: end;
  }

  .prompt-dialog {
    padding: 28px 22px;
  }

  .prompt-dialog h2 {
    font-size: 2.3rem;
  }
}

@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;
  }
}