:root{
  --bg:#fbfcff;
  --surface:#ffffff;
  --surface-2:#f3f6fb;
  --text:#172033;
  --muted:#5c677d;
  --border:#d9e0ee;
  --accent:#0079CF;
  --shadow:0 14px 40px rgba(17, 24, 39, .08);
  --radius:18px;
  --container:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height:1.65;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{
  width:min(calc(100% - 32px), var(--container));
  margin:0 auto;
}
.narrow{max-width:820px}
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter:saturate(180%) blur(14px);
  background:rgba(251,252,255,.85);
  border-bottom:1px solid rgba(217,224,238,.7);
}

.top-banner {
  background: #1B427D;
  border-bottom: 1px solid #e6e6e6;
  padding: 10px 0;
}
.banner-inner{
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 0 15px;
}
.top-banner .nav{
  margin-left:auto;
  margin-right:20px;
}
.top-banner .nav a{
  color:#fff;
  font-weight:700;
  font-size:1.05rem;
  margin-right:auto;
}
.top-banner img {
  height: 42px;
  width: auto;
  display: block;
}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
}
.brand{
  font-weight:800;
  letter-spacing:.02em;
}
.nav{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.nav a{
  color:var(--muted);
  font-size:.95rem;
}
.nav a:hover{color:var(--muted)}
.hero{
  padding:64px 0 32px;
  background:
    radial-gradient(circle at top right, rgba(123,97,255,.10), transparent 28%),
    radial-gradient(circle at top left, rgba(47,111,237,.10), transparent 30%),
    var(--bg);
}
.eyebrow{
  display:inline-flex;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(47,111,237,.08);
  color:var(--accent);
  font-weight:700;
  font-size:.82rem;
  margin:0 0 16px;
}
h1{
  margin:0;
  font-size:clamp(2rem, 3vw, 3.3rem);
  line-height:1.1;
  letter-spacing:-.03em;
  text-align: center;
}
.authors, .affiliation{
  margin:14px 0 0;
  color:var(--muted);
  font-size:1.3rem;
  /*font-weight:700;*/
  text-align:center;
}
.button-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin:28px 0 24px;
  justify-content:center;
}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 16px;
  border:1px solid var(--border);
  border-radius:999px;
  background:var(--surface);
  box-shadow:var(--shadow);
  font-weight:700;
  cursor:pointer;
}
.button.primary{
  background:linear-gradient(135deg, #1B427D, #0079CF);
  color:white;
  border:none;
}
.hero-summary{
  max-width:860px;
  font-size:1.1rem;
  color:var(--text);
  border-left:4px solid var(--muted);
  padding-left:16px;
}
.metrics-grid{
  margin-top:28px;
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
}
.metric-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}
.metric{
  font-size:2rem;
  font-weight:800;
  line-height:1;
  margin-bottom:8px;
}
.metric-label{
  color:var(--muted);
  font-size:.95rem;
}
.hero-figure, .paper-figure{
  margin:10px 0 0;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.hero-figure img, .paper-figure img{
  width:100%;
  height:auto;
}
figcaption{
  padding:14px 18px 18px;
  color:var(--muted);
  font-size:.92rem;
}
.section{
  padding:30px 10px;
}
.section.alt{
  background:var(--surface-2);
  border-top:1px solid rgba(217,224,238,.65);
  border-bottom:1px solid rgba(217,224,238,.65);
}
.section-heading{
  margin-bottom:28px;
}
.section-kicker{
  margin:0 0 8px;
  color:var(--accent);
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:.78rem;
}
h2{
  margin:0;
  font-size:clamp(1.6rem, 2.2vw, 2.3rem);
  line-height:1.15;
  letter-spacing:-.02em;
}
h3{
  margin:0 0 10px;
  color:var(--accent);
  font-size:1.15rem;
  line-height:1.25;
}
.content p{margin:0}
.card-grid{
  display:grid;
  gap:18px;
  margin-top:10px;
}
.card-grid.three{grid-template-columns:repeat(3, 1fr)}
.card-grid.two{grid-template-columns:repeat(2, 1fr)}
.info-card, .step-card, .result-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow);
}
.method-steps{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
  margin-top:16px;
}
.method-step{
  padding-left:14px;
  /*border-left:1px solid var(--accent);*/
}
.method-step p{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.6;
}
.step-index{
  display:inline-block;
  /*margin-bottom:5px;*/
  /*padding:4px 10px;*/
  /*border-radius:999px;*/
  /*background:rgba(47,111,237,.08);*/
  color:var(--accent);
  font-size: 1.1rem;
  font-weight: 800;
}
.two-col{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:28px;
  align-items:start;
}
.sticky-col{
  position:sticky;
  top:92px;
}
.stack{
  display:grid;
  gap:16px;
}
.result-card.emphasis{
  border-color:rgba(47,111,237,.45);
}
.comparison-table-wrap{
  margin-top:10px;
  overflow:auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.comparison-table{
  width:100%;
  border-collapse:collapse;
  min-width:160px;
}
.comparison-table th,
.comparison-table td{
  padding:14px 16px;
  text-align:left;
  border-bottom:1px solid var(--border);
}
.comparison-table thead th{
  background:#f7f9fe;
  font-size:.92rem;
}
.comparison-table tbody tr:last-child td{border-bottom:none}
.highlight-row{
  background:rgba(47,111,237,.06);
  font-weight:800;
}
.result-card .card-grid{margin-top:16px}
.result-card .comparison-table-wrap{margin-top:0}
.paper-figure.compact{
  margin:8px 0 14px;
}
.callout{
  margin-top:24px;
  padding:22px;
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(47,111,237,.08), rgba(123,97,255,.08));
  border:1px solid rgba(47,111,237,.12);
}
.bibtex-wrap{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}
pre{
  margin:0 0 16px;
  padding:18px;
  overflow:auto;
  border-radius:14px;
  background:#0f172a;
  color:#e2e8f0;
  font-size:.92rem;
  line-height:1.5;
}
.site-footer{
  padding:28px 0 46px;
}
.footer-wrap{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--muted);
}
.muted{color:var(--muted)}
@media (max-width: 980px){
  .metrics-grid{grid-template-columns:repeat(2, 1fr)}
  .card-grid.three{grid-template-columns:1fr}
  .method-steps{grid-template-columns:1fr}
  .card-grid.two{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .sticky-col{position:static}
}
@media (max-width: 640px){
  .nav{display:none}
  .hero{padding-top:40px}
  .metrics-grid{grid-template-columns:1fr}
  .button-row{gap:10px}
  .button{width:100%}
}