:root {
  --max-width: 920px;
  --ink: #1b1f23;
  --muted: #5b6572;
  --line: #e3e6ea;
  --accent: #8a1f2b;
  --accent-soft: #fbeceb;
  --bg: #fdfdfc;
  --card: #ffffff;
  --code-bg: #f5f6f8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, "Noto Serif SC", serif;
  line-height: 1.6;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

header.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}

header.site-header .wrap {
  padding-top: 22px;
  padding-bottom: 14px;
}

.site-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--ink);
}

.site-title small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 2px;
}

nav.site-nav {
  margin-top: 14px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

nav.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.88rem;
  padding: 7px 12px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

nav.site-nav a:hover { background: var(--accent-soft); color: var(--accent); }

nav.site-nav a.active {
  color: var(--accent);
  font-weight: 700;
  background: var(--accent-soft);
}

main { padding: 40px 0 80px; }

h1 { font-size: 1.9rem; margin: 0 0 6px; line-height: 1.25; }
h2 { font-size: 1.35rem; margin: 40px 0 12px; padding-top: 6px; border-top: 1px solid var(--line); }
h2:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
h3 { font-size: 1.08rem; margin: 26px 0 8px; color: var(--ink); }
h4 { font-size: 0.95rem; margin: 18px 0 6px; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }

p { margin: 0 0 14px; }
p.subtitle { color: var(--muted); font-size: 1.02rem; margin-bottom: 20px; }
p.lead { font-size: 1.03rem; }

a { color: var(--accent); }

.authors {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 6px 0 18px;
}
.authors .aff { display: block; font-size: 0.82rem; margin-top: 6px; }

.badges { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0 26px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.86rem;
  color: var(--ink);
  background: var(--card);
}
.badge:hover { border-color: var(--accent); color: var(--accent); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 18px;
}

.abstract {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 18px 22px;
  font-size: 0.96rem;
  color: #333;
}
.abstract h4 { margin-top: 0; }

table { width: 100%; border-collapse: collapse; margin: 14px 0 22px; font-size: 0.88rem; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.02em; }
tbody tr:hover { background: #fafafa; }
table.compact td, table.compact th { padding: 6px 8px; font-size: 0.84rem; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.figure { margin: 18px 0 26px; }
.figure img { width: 100%; border: 1px solid var(--line); border-radius: 8px; display: block; }
.figure figcaption { font-size: 0.85rem; color: var(--muted); margin-top: 8px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }

.demo-group { margin-bottom: 34px; }
.demo-group .desc { color: var(--muted); font-size: 0.92rem; margin-bottom: 14px; }

.excerpt-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 16px;
  overflow: hidden;
}
.excerpt-block > .excerpt-title {
  background: #f7f4ef;
  padding: 10px 16px;
  font-weight: 700;
  font-size: 0.92rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  border-bottom: 1px solid var(--line);
}
.excerpt-block table { margin: 0; }
.excerpt-block td, .excerpt-block th { padding: 10px 16px; }
audio { width: 220px; height: 32px; vertical-align: middle; }
td.cond-label { font-weight: 600; white-space: nowrap; }
td.cond-sub { color: var(--muted); font-size: 0.82rem; }

.note {
  font-size: 0.86rem;
  color: var(--muted);
  background: #f7f4ef;
  border-radius: 8px;
  padding: 12px 16px;
  margin: 14px 0 22px;
}

code, pre, .mono {
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.84rem;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
}
code.inline {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }

.repo-list { list-style: none; padding: 0; margin: 0; }
.repo-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--card);
}
.repo-list a.repo-name {
  font-weight: 700;
  text-decoration: none;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.94rem;
}
.repo-list .repo-desc { color: var(--muted); font-size: 0.88rem; margin-top: 4px; }
.repo-list .repo-role { display: inline-block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--accent); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-weight: 700; margin-top: 6px; }

footer {
  border-top: 1px solid var(--line);
  padding: 26px 0 50px;
  color: var(--muted);
  font-size: 0.82rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 640px) {
  .grid2 { grid-template-columns: 1fr; }
  audio { width: 100%; }
  .excerpt-block td, .excerpt-block th { padding: 8px 10px; }
}