:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #5b6474;
  --accent: #1e5ed8;
  --accent-hover: #1749a8;
  --border: #d8dfeb;
  --shadow: 0 12px 30px rgba(17, 35, 68, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eff3fb 0%, var(--bg) 24%, var(--bg) 100%);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.container.narrow {
  width: min(860px, 92vw);
}

.hero {
  border-bottom: 1px solid var(--border);
  padding: 64px 0 52px;
  text-align: center;
}

.venue {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
  text-transform: uppercase;
}

.hero h1 {
  color: #14233f;
  font-family: "Cormorant Garamond", "Times New Roman", Times, serif;
  font-size: clamp(1.95rem, 3.35vw, 3.1rem);
  font-weight: 600;
  letter-spacing: 0.012em;
  line-height: 1.12;
  margin: 0 auto 14px;
  max-width: 980px;
  text-wrap: balance;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.75), 0 10px 22px rgba(22, 44, 86, 0.16);
}

.subtitle {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin: 14px auto 18px;
  max-width: 780px;
}

.authors {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  line-height: 1.45;
  margin: 0 auto 14px;
  max-width: 920px;
}

.authors a {
  color: var(--text);
  font-weight: 600;
}

.author-name {
  color: var(--text);
  font-weight: 600;
}

.affiliations {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.98rem;
  gap: 10px 24px;
  justify-content: center;
  margin: 0 auto;
}

.author-note {
  color: var(--muted);
  font-size: 0.84rem;
  margin: 8px auto 0;
  opacity: 0.9;
  text-align: center;
}

.author-note a {
  color: var(--accent);
}

.abstract-body {
  line-height: 1.78;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.macro-ours {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.cite-key {
  color: #5b6474;
  font-size: 0.9em;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

.btn {
  background: #111111;
  border: 1px solid #111111;
  border-radius: 999px;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  min-width: 92px;
  padding: 10px 18px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  background: #2a2a2a;
  border-color: #2a2a2a;
  text-decoration: none;
  transform: translateY(-1px);
}

.section {
  padding: 44px 0;
}

.section h2 {
  font-size: clamp(1.45rem, 2.1vw, 1.8rem);
  margin: 0 0 18px;
  text-align: center;
}

.section p {
  color: #2f3b4f;
  line-height: 1.72;
  margin: 0 auto;
}

.media-card,
.demo-card,
.result-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  margin: 0;
  overflow: hidden;
}

.media-card {
  padding: 16px;
}

.media-card img {
  border-radius: 12px;
  display: block;
  width: 100%;
}

.media-card figcaption,
.demo-card p,
.result-card figcaption {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 12px 4px 4px;
  text-align: center;
}

.demo-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.demo-card {
  padding: 14px;
}

.demo-card video {
  aspect-ratio: 16 / 9;
  background: #0f1728;
  border-radius: 10px;
  display: block;
  width: 100%;
}

.result-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
}

.result-single {
  margin: 0;
  max-width: none;
  width: 100%;
}

.result-card img {
  display: block;
  width: 100%;
}

pre {
  background: #101c34;
  border-radius: 12px;
  color: #d8e5ff;
  margin: 0;
  overflow-x: auto;
  padding: 18px;
}

code {
  font-family: "SFMono-Regular", Menlo, Consolas, Monaco, monospace;
  font-size: 0.92rem;
  line-height: 1.65;
}

.footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 28px 0 42px;
  text-align: center;
}

.footer p {
  margin: 8px auto;
}

@media (max-width: 900px) {
  .section {
    padding: 34px 0;
  }

  .demo-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    padding: 52px 0 40px;
  }

  .authors {
    gap: 6px;
  }

  .btn {
    width: 100%;
  }
}