:root {
  --bg: #f2f6ff;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe4f5;
  --accent: #1d5dbb;
  --accent-2: #5f8f2f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, #eef4ff 0%, #f8fbff 55%, #eef9ff 100%);
  line-height: 1.65;
}

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

a:hover {
  text-decoration: underline;
}

.hero {
  padding: 48px 24px 28px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(29, 93, 187, 0.1), rgba(29, 93, 187, 0.02));
}

.hero-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  text-align: center;
}

.venue-chip {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  color: #ffffff;
  background: linear-gradient(120deg, var(--accent), #3b82f6);
}

h1 {
  margin: 0;
  font-size: clamp(1.65rem, 2.3vw, 2.45rem);
  line-height: 1.3;
}

.authors {
  margin: 16px 0 8px;
  font-weight: 600;
}

.affiliation {
  margin: 0;
  color: var(--muted);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon i {
  font-size: 1.05em;
}

.arxiv-pending {
  cursor: not-allowed;
  opacity: 0.78;
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn.primary {
  color: #ffffff;
  background: linear-gradient(120deg, var(--accent), #216ed5);
  box-shadow: 0 10px 24px rgba(23, 78, 157, 0.28);
}

.btn.ghost {
  color: var(--accent);
  background: #ffffff;
  border-color: #bfd2f6;
}

.hero-logos {
  width: min(920px, 100%);
  margin: 22px auto 0;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  gap: clamp(8px, 2vw, 14px);
}

.hero-logos img {
  flex: 1 1 0;
  min-width: 0;
  max-height: 52px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid #d4e1fb;
  background: #ffffff;
  padding: 3px 6px;
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 22px auto 32px;
}

.section-card {
  margin-bottom: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 6px 20px rgba(30, 64, 140, 0.07);
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease,
    border-color 0.3s ease;
}

@media (hover: hover) and (pointer: fine) {
  .section-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(30, 64, 140, 0.14);
    border-color: #b8ccef;
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-card {
    transition: none;
  }

  @media (hover: hover) and (pointer: fine) {
    .section-card:hover {
      transform: none;
    }
  }
}

h2 {
  margin: 0 0 12px;
  font-size: 1.45rem;
  color: #123975;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.sub-card {
  border: 1px solid #d8e3f7;
  border-radius: 12px;
  padding: 14px 14px 10px;
  background: #f9fcff;
}

ul {
  margin: 0;
  padding-left: 20px;
}

.media-card {
  margin-top: 14px;
  border-top: 1px dashed #ccdaef;
  padding-top: 14px;
}

.pipeline-video {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #d2def6;
  background: #e8effb;
  box-shadow: 0 8px 26px rgba(40, 81, 155, 0.18);
}

.gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

figure {
  margin: 0;
  border: 1px solid #d8e3f7;
  border-radius: 12px;
  padding: 10px;
  background: #fdfdff;
}

figure img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.contrib-list li::marker {
  color: var(--accent-2);
}

.resources {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.resources img {
  width: 130px;
  height: 130px;
  border-radius: 12px;
  border: 1px solid #cfe0f8;
  background: #ffffff;
}

footer {
  padding: 20px 16px 26px;
  text-align: center;
  color: #5b6f95;
}

@media (max-width: 900px) {
  .gallery,
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 36px 14px 22px;
  }

  main {
    width: calc(100% - 18px);
  }

  .section-card {
    padding: 16px;
    border-radius: 12px;
  }

  .hero-logos {
    flex-wrap: wrap;
    row-gap: 10px;
  }

  .hero-logos img {
    flex: 0 1 calc(33.333% - 10px);
    max-height: 44px;
    max-width: 32%;
  }

  .resources {
    flex-direction: column;
    align-items: flex-start;
  }
}