:root {
  --bg: #fbfbfb;
  --surface: #ffffff;
  --surface-soft: #f5f6ff;
  --text: #1e1e1e;
  --muted: #6a6a6a;
  --line: #e8e8e8;
  --line-strong: rgba(0, 0, 0, 0.12);
  --accent: #12487e;
  --accent-soft: #eff1f9;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --content-width: 1248px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
}

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

.page-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 251, 251, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.site-header-inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 24px 24px 18px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
}

.site-brand,
.site-meta {
  font-size: 0.95rem;
  color: var(--muted);
}

.site-brand {
  justify-self: start;
  text-decoration: none;
  font-weight: 600;
  color: var(--text);
}

.site-meta {
  justify-self: end;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.98rem;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.page-content {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 84px 24px 120px;
}

.hero-block {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-copy {
  max-width: 980px;
  text-align: center;
}

.hero-kicker,
.section-kicker {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 500;
}

.hero-title {
  margin: 0;
  font-size: clamp(3.0rem, 7vw, 5.0rem);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.hero-title-accent {
  color: var(--accent);
}

.hero-title-rest {
  color: var(--text);
}

.hero-subtitle {
  max-width: 860px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  line-height: 1.45;
}

.hero-conference {
  margin: 26px 0 0;
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 600;
}

.hero-authors,
.hero-affiliations,
.hero-notes {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 1rem;
}

.author-entry {
  display: inline-block;
}

.hero-authors .author-entry a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.14em;
}

.hero-authors .author-entry a:hover,
.hero-authors .author-entry a:focus-visible {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 30px;
}

.pill-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 24px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-size: 0.98rem;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
  cursor: pointer;
}

.pill-button:hover,
.pill-button:focus-visible {
  background: #e7edf5;
  border-color: rgba(0, 0, 0, 0.18);
  color: #101010;
}

.pill-button-static {
  background: var(--surface-soft);
}

.pill-button[aria-disabled="true"] {
  cursor: pointer;
}

.pill-button-icon {
  padding-left: 18px;
  padding-right: 20px;
}

.button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.button-icon svg,
.button-icon img {
  display: block;
  width: 100%;
  height: 100%;
}

.button-icon svg {
  fill: currentColor;
}

.section-block {
  margin-top: 120px;
}

.support-visual {
  margin-top: 40px;
}

.section-heading {
  max-width: 860px;
  margin: 0 auto 38px;
}

.section-heading-center {
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.single-media-card,
.text-card,
.media-card,
.method-figure,
.method-item,
.citation-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.single-media-card,
.support-visual .single-media-card {
  width: 880px;
  margin: 0 auto;
  overflow: hidden;
}

.single-media-card video,
.single-media-card img {
  height: auto;
  max-height: none;
  aspect-ratio: auto;
  object-fit: contain;
  background: #111;
}

.text-card {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px;
}

.text-card p,
.method-item p,
.method-figure figcaption,
.page-footer {
  color: var(--muted);
}

.text-card p,
.method-item p,
.method-figure figcaption {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
}

.method-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 28px;
  align-items: start;
}

.method-figure {
  margin: 0;
  padding: 28px;
}

.method-figure figcaption {
  padding-top: 14px;
}

.method-copy {
  display: grid;
  gap: 18px;
}

.method-item {
  padding: 19px;
}

.method-item h3 {
  position: relative;
  margin: 0 0 12px;
  padding-left: 16px;
  font-size: 1.4rem;
  line-height: 1.3;
}

.method-item h3::before {
  position: absolute;
  top: 4px;
  left: 0;
  width: 4px;
  height: 1.1em;
  border-radius: 999px;
  background: var(--accent);
  content: "";
}

.media-grid {
  display: grid;
  gap: 22px;
}

.media-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.media-grid-single {
  grid-template-columns: 1fr;
  max-width: 880px;
  margin: 0 auto;
}

.media-card {
  margin: 0;
  padding: 16px;
}

.media-card video {
  height: auto;
  max-height: none;
  aspect-ratio: auto;
  object-fit: contain;
  background: #111;
  border-radius: 16px;
}

.citation-card {
  max-width: 880px;
  margin: 0 auto;
  padding: 22px;
}

.citation-card pre {
  margin: 0;
  overflow: auto;
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.94rem;
  line-height: 1.75;
}

.page-footer {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 0 24px 40px;
  font-size: 0.95rem;
}

@media (max-width: 1080px) {
  .method-shell,
  .media-grid-three {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .site-header-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .site-brand,
  .site-meta {
    justify-self: center;
  }

  .site-nav {
    gap: 18px;
  }

  .method-shell,
  .media-grid-three {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-content,
  .page-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .section-block {
    margin-top: 92px;
  }

  .hero-actions {
    gap: 12px;
  }

  .pill-button {
    width: 100%;
  }

  .text-card,
  .method-item,
  .citation-card {
    padding: 22px;
  }
}