:root {
  --bg: #ffffff;
  --text: #1f2933;
  --muted: #5f6b76;
  --soft: #f6f8fa;
  --soft-2: #eef5f7;
  --border: #dde4ea;
  --accent: #2f6072;
  --accent-dark: #244c5a;
  --highlight: #fff4e7;
  --highlight-border: #f1c087;
  --max-width: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

.page {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0 32px;
}

.hero { text-align: center; margin-bottom: 28px; }
.tagline {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  background: var(--soft-2);
  font-weight: 700;
  font-size: 0.95rem;
}
.hero h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: -0.05em;
}
.hero h2 {
  margin: 16px auto 18px;
  max-width: 940px;
  font-size: clamp(1.25rem, 3vw, 2.0rem);
  line-height: 1.25;
  font-weight: 800;
}
.authors, .affiliations, .equal-contribution { margin: 7px 0; color: var(--muted); }
.authors { font-size: 1.08rem; }
.authors span { white-space: nowrap; }
.email-icon {
  color: var(--muted);
  font-size: 0.75rem;
  vertical-align: super;
  cursor: default;
  margin-left: 0.1em;
}
.contact a {
  color: var(--accent);
  text-decoration: underline;
}
.contact a {
  color: var(--accent);
  text-decoration: underline;
}
.affiliations { font-weight: 700; }
.equal-contribution { font-size: 0.92rem; }

.button-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.button {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
  border: 1px solid var(--accent);
  font-size: 0.98rem;
  text-decoration: none;
}
.button span { font-weight: 600; opacity: 0.88; }
.button-disabled {
  background: #9ca3af;
  border-color: #9ca3af;
  cursor: not-allowed;
}

.section {
  padding: 30px 0;
  border-top: 1px solid var(--border);
}
.teaser-section { border-top: 0; padding-top: 0; }
.section h2 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.75rem;
  line-height: 1.2;
}
.section h3 { margin: 0 0 8px; font-size: 1.08rem; }
.section p { margin: 0 0 14px; color: var(--muted); font-size: 1rem; }

.figure-card {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--soft);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}
.figure-card img {
  display: block;
  width: 100%;
  height: auto;
}
.figure-card video {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
}
.hero-figure { border-radius: 18px; }
.caption {
  margin-top: 10px !important;
  text-align: center;
  font-size: 0.94rem !important;
  color: var(--muted) !important;
}

.cards { display: grid; gap: 16px; margin-top: 16px; }
.three-cards { grid-template-columns: repeat(3, 1fr); }
.text-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: var(--soft);
}
.text-card h3 { color: var(--accent); }
.text-card p { margin-bottom: 0; }

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  margin: 18px 0 14px;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
  font-size: 0.94rem;
}
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  white-space: nowrap;
}
th { background: var(--soft-2); color: var(--text); font-weight: 800; }
td:first-child, th:first-child { text-align: left; }
tr:last-child td { border-bottom: 0; }
.group-row td {
  background: #f9fafb;
  color: var(--accent);
  font-weight: 800;
  text-align: center !important;
}
.highlight td { background: var(--highlight); }
.note { font-size: 0.92rem !important; }

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}
.video-grid { margin-top: 10px; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: var(--soft);
}
.faq-item h3 { color: var(--accent); }
.faq-item p { margin-bottom: 0; }

.coming-box {
  border: 1px dashed #b7c2cc;
  border-radius: 14px;
  background: var(--soft);
  padding: 18px;
  color: var(--muted);
  font-weight: 700;
}
.footer {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto 38px;
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 820px) {
  .page { padding-top: 36px; }
  .three-cards, .split-grid { grid-template-columns: 1fr; }
  .button { min-width: 140px; }
}