:root {
  --text: #344256;
  --muted: #6a788b;
  --heading: #2d4865;
  --border: #dce6ef;
  --paper: #ffffff;
  --soft: #f5f9fd;
  --hero: #fff9f4;
  --link: #3a789f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1040px, calc(100% - 2rem)); margin: 0 auto; }
.hero { padding: 4rem 0 3rem; background: var(--hero); border-bottom: 1px solid #f5e8dc; text-align: center; }
.venue { margin: 0 0 0.4rem; color: var(--muted); font-size: 1.05rem; font-weight: 600; letter-spacing: 0.08em; }
h1, h2, h3 { color: var(--heading); line-height: 1.25; }
h1 { max-width: 900px; margin: 0 auto 1.1rem; font-size: clamp(2rem, 3.5vw, 3.1rem); font-weight: 500; }
h2 { margin: 0 0 1rem; font-size: 1.9rem; font-weight: 500; }
h3 { margin: 0 0 0.55rem; font-size: 1.1rem; font-weight: 600; }
p { margin: 0 0 1rem; }
.authors { margin: 0 auto 0.25rem; max-width: 920px; line-height: 1.8; }
.affiliation { margin: 0; color: var(--muted); }
.links { display: flex; justify-content: center; flex-wrap: wrap; gap: 1.5rem; margin: 1.1rem 0 0; font-size: 1.2rem; }
.page-nav { position: sticky; top: 0; z-index: 10; background: #f9fbfe; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.page-nav > div { display: flex; gap: 1.35rem; overflow-x: auto; padding: 0.7rem 0; white-space: nowrap; font-size: 0.92rem; }
.section { padding: 4rem 0; }
.muted-section { background: var(--soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.lead { font-size: 1.12rem; }
.architecture-figure { max-width: 720px; margin: 1.75rem auto 0; }
.architecture-figure img { display: block; width: 100%; height: auto; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem; }
.capability-grid article { padding: 1.3rem; background: #fff; border: 1px solid var(--border); }
.result-value { margin: 1.1rem 0 0.15rem; font-size: 1.65rem; font-weight: 600; }
.caption { color: var(--muted); font-size: 0.9rem; }
.task-type { margin: 1.1rem 0 0; color: var(--muted); font-size: 0.9rem; font-weight: 600; }
.dataset-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.dataset-grid ul { columns: 2; margin: 0; padding-left: 1.25rem; }
pre { margin: 0; padding: 1.1rem; overflow-x: auto; border: 1px solid var(--border); background: var(--soft); font-size: 0.86rem; line-height: 1.5; }
.footer { padding: 1.7rem 0; color: var(--muted); font-size: 0.9rem; text-align: center; }

@media (max-width: 800px) {
  .hero { padding: 2.7rem 0 2.2rem; }
  .section { padding: 2.75rem 0; }
  .capability-grid, .dataset-grid { grid-template-columns: 1fr; }
  .dataset-grid { gap: 1.25rem; }
}