:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #12202f;
  --muted: #4b5f73;
  --brand: #0e7490;
  --line: #d9e1ea;
  --best: #e8f7e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top right, #e9f4ff 0%, var(--bg) 35%, #f8fafc 100%);
  color: var(--ink);
  font: 16px/1.65 "Segoe UI", "Avenir Next", "Helvetica Neue", sans-serif;
}

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

.hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(120deg, #ecfeff 0%, #eff6ff 50%, #f5f3ff 100%);
  padding: 3rem 0 2rem;
}

.kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0 0 0.6rem;
}

h1 {
  margin: 0;
  line-height: 1.2;
  font-size: clamp(1.6rem, 2.6vw, 2.5rem);
}

.subtitle, .authors, .affils, .chips {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

main { padding: 2rem 0 3rem; }
section { margin: 0 0 1.8rem; }

h2 {
  margin: 0 0 0.55rem;
  font-size: 1.28rem;
}

h3 {
  margin: 0 0 0.55rem;
  font-size: 1.04rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

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

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.table-wrap.narrow { max-width: 620px; }

table {
  width: 100%;
  border-collapse: collapse;
}

.table-wrap table {
  min-width: 680px;
}

th, td {
  border: 1px solid var(--line);
  padding: 0.55rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f1f5f9;
  font-weight: 700;
}

tr.best td {
  background: var(--best);
  font-weight: 700;
}

.note {
  color: var(--muted);
  margin-top: 0.6rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chips span {
  background: #e2eefc;
  border: 1px solid #c2d6f0;
  color: #17375f;
  border-radius: 999px;
  font-size: 0.82rem;
  padding: 0.16rem 0.62rem;
  font-weight: 600;
}


.paper-figure {
  margin: 1rem 0 0;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

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

.paper-figure figcaption {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.93rem;
}

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
}