:root {
  color-scheme: light;
  --bg: #f5f7f9;
  --bg-elev: #ffffff;
  --bg-subtle: #f8fafb;
  --border: #dce3e9;
  --border-soft: #eef2f5;
  --text: #20242a;
  --muted: #46515b;
  --dim: #69737d;
  --brand: #5a3c86;
  --accent: #2563eb;
  --green: #0f5b43;
  --amber: #8a5a00;
  --red: #a83d3d;
  --brand-bg: #f0eafa;
  --green-bg: #dff4ec;
  --amber-bg: #fff8e0;
  --red-bg: #fde8e8;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  font: 15px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: var(--mono);
  background: #f0f4f8;
  padding: 0 5px;
  border-radius: 4px;
  font-size: 13px;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, .96);
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo { color: var(--text); font-weight: 760; white-space: nowrap; }
.logo:hover { text-decoration: none; }
.logo .mark { color: var(--brand); }
.logo-en { color: var(--dim); font-weight: 500; font-size: 12px; margin-left: 8px; }
nav { display: flex; gap: 2px; flex-wrap: wrap; margin-left: auto; }
nav a {
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 14px;
}
nav a:hover { background: var(--bg); border-color: #cfd8df; text-decoration: none; color: var(--text); }
nav a.active { background: var(--text); color: #fff; border-color: var(--text); font-weight: 600; }
.wrap { width: 100%; max-width: 820px; margin: 0 auto; padding: 0 20px; }
main.wrap { flex: 1; padding-top: 24px; padding-bottom: 32px; }
h1 { font-size: 26px; font-weight: 760; line-height: 1.25; margin: 16px 0; }
.tagline { font-size: 16px; font-weight: 600; margin: 8px 0 16px; }
.scoreboard {
  display: flex;
  gap: 12px;
  align-items: baseline;
  flex-wrap: wrap;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  margin-bottom: 24px;
}
.sb-title { font-weight: 700; font-size: 13px; color: #5b6470; }
.sb-counts { font-family: var(--mono); font-size: 13.5px; font-weight: 600; }
.sb-link { margin-left: auto; font-size: 13px; white-space: nowrap; }
.sec-h {
  font-size: 13px;
  font-weight: 700;
  color: #5b6470;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 8px;
  margin: 24px 0 12px;
}
.sec-more { float: right; font-weight: 500; text-transform: none; letter-spacing: 0; }
.plain-list { list-style: none; margin: 0; padding: 0; }
.plain-list li { padding: 6px 0; border-bottom: 1px solid var(--border-soft); }
.series-card, .law-card {
  display: block;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 12px;
  color: var(--text);
}
.series-card:hover, .law-card:hover { text-decoration: none; border-color: #b9c4cd; }
.sc-head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.sc-meta { margin-left: auto; white-space: nowrap; }
.sc-paradigm { color: var(--brand); font-weight: 600; margin: 6px 0; }
.sc-foot { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; color: var(--muted); }
.law-statement { margin: 6px 0; color: var(--muted); }
.badge {
  display: inline-block;
  padding: 0 9px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 20px;
  background: #edf1f4;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
  font-weight: 500;
}
.badge.green { color: var(--green); background: var(--green-bg); }
.badge.amber { color: var(--amber); background: var(--amber-bg); }
.badge.red { color: var(--red); background: var(--red-bg); }
.badge.brand { color: var(--brand); background: var(--brand-bg); }
.table-wrap { overflow-x: auto; }
table.t { width: 100%; border-collapse: collapse; font-size: 13.5px; background: var(--bg-elev); }
table.t th {
  text-align: left;
  color: #5b6470;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .03em;
  padding: 8px;
  border-bottom: 1px solid var(--border);
}
table.t td { padding: 8px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.paradigm {
  border-left: 3px solid var(--brand);
  background: var(--brand-bg);
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  margin: 16px 0;
}
.p-label { font-size: 11px; font-weight: 700; letter-spacing: .08em; color: var(--brand); }
.p-statement { font-size: 16px; font-weight: 650; margin: 4px 0; }
.claim-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
}
.claim-head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.claim-text { margin: 8px 0; font-weight: 550; }
.series-nav {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 16px;
}
.md { font-size: 15px; line-height: 1.7; }
.md h1 { font-size: 22px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.md h2 { font-size: 18px; font-weight: 700; margin-top: 24px; }
.md h3 { font-size: 15.5px; font-weight: 700; }
.md hr { border: 0; border-top: 1px solid var(--border); margin: 16px 0; }
.md blockquote {
  margin: 12px 0;
  padding: 8px 16px;
  border-left: 3px solid var(--brand);
  color: var(--muted);
  background: var(--brand-bg);
  border-radius: 0 6px 6px 0;
}
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.small { font-size: 13px; }
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 16px 0;
  margin-top: 32px;
  color: var(--dim);
  font-size: 12.5px;
}
@media (max-width: 640px) {
  .topbar { padding: 10px 14px; }
  .wrap { padding: 0 14px; }
  nav { margin-left: 0; }
}