:root {
  --bg: #08111f;
  --panel: #102039;
  --line: #243656;
  --gold: #d4a017;
  --text: #e8eef8;
  --dim: #9aadc4;
  --paper: #f4f7fb;
  --ink: #132033;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
a { color: #1d4f91; }
.side {
  background: var(--bg);
  color: var(--text);
  padding: 22px 18px 32px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.side .logo {
  display: flex;
  gap: 10px;
  align-items: center;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  margin-bottom: 22px;
}
.side svg { width: 26px; height: 26px; display: block; }
.side nav { display: flex; flex-direction: column; gap: 6px; }
.side nav a {
  color: var(--dim);
  text-decoration: none;
  padding: 9px 10px;
  border-left: 3px solid transparent;
}
.side nav a[aria-current="page"] {
  color: #fff;
  border-left-color: var(--gold);
  background: var(--panel);
}
.canvas { min-width: 0; }
.banner {
  background: linear-gradient(180deg, #102039, #16325a);
  color: #fff;
  padding: 36px 40px 28px;
}
.banner h1 { font-size: clamp(28px, 3.6vw, 40px); margin: 0 0 12px; line-height: 1.25; }
.banner p { color: #d5e2f3; max-width: 46em; }
.btnrow { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: #1a1403;
  text-decoration: none;
  padding: 11px 16px;
  font-weight: 700;
}
.btn svg { width: 18px; height: 18px; }
.btn.ghost { background: transparent; color: #fff; border: 1px solid #7f97b8; font-weight: 500; }
.marks { color: var(--gold); font-size: 13px; letter-spacing: 0.08em; }
.wrap { width: min(980px, calc(100% - 64px)); margin: 0 auto; padding: 28px 0 10px; }
h2 { font-size: 24px; margin: 0 0 10px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.unit { margin: 0 0 28px; padding-bottom: 22px; border-bottom: 1px solid #d5deea; }
dl.defs { display: grid; grid-template-columns: 180px 1fr; gap: 0; }
dl.defs dt, dl.defs dd {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid #d5deea;
}
dl.defs dt { background: #e8eef6; font-weight: 700; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid #d5deea; padding: 9px 11px; text-align: left; vertical-align: top; }
th { background: #102039; color: #fff; }
.faq details, .faq article {
  background: #fff;
  border: 1px solid #d5deea;
  padding: 12px 14px;
  margin: 0 0 8px;
}
.foot {
  background: #08111f;
  color: #c5d2e4;
  padding: 22px 40px 30px;
  font-size: 13px;
}
.foot a { color: #f1d48a; }
.foot ul { display: flex; gap: 14px; list-style: none; padding: 0; margin: 0 0 8px; }
@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .side { position: relative; height: auto; }
  .side nav { flex-direction: row; flex-wrap: wrap; }
  dl.defs { grid-template-columns: 1fr; }
  .banner, .foot { padding-left: 20px; padding-right: 20px; }
  .wrap { width: calc(100% - 32px); }
}