:root {
  --ink: #0f172a;
  --blue: #1d4ed8;
  --ice: #eef3fb;
  --card: #ffffff;
  --line: #d5e0f2;
  --muted: #526077;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ice);
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 16.5px;
  line-height: 1.75;
}
.shell-top {
  background: #0f172a;
  color: white;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 12px;
  align-items: center;
  padding: 0 22px;
  min-height: 64px;
}
.brand { color: #fff; font-weight: 800; text-decoration: none; font-size: 20px; }
.shell-top nav { display: flex; gap: 4px; }
.shell-top nav a {
  color: #dbe7ff;
  text-decoration: none;
  padding: 18px 14px;
  display: inline-block;
}
.shell-top nav a.on { background: var(--blue); color: #fff; }
.page { max-width: 1140px; margin: 0 auto; padding: 22px 18px 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 22px;
}
h1 { font-size: 32px; line-height: 1.3; margin: 0 0 10px; }
h2 { font-size: 22px; margin: 26px 0 8px; padding-bottom: 6px; border-bottom: 2px solid var(--blue); }
h3 { font-size: 17px; margin: 0 0 4px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.btn {
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  padding: 10px 14px;
  font-weight: 700;
}
.btn.alt { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.metric { background: var(--ice); padding: 10px; border: 1px solid var(--line); }
.metric b { display: block; color: var(--blue); font-size: 15px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cell, .faq-item, .news-item {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 12px 12px 2px;
}
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #e4edfb; }
ol.rail-steps { list-style: none; padding: 0; margin: 0; counter-reset: st; }
ol.rail-steps li {
  counter-increment: st;
  background: #fff;
  border: 1px solid var(--line);
  margin: 8px 0;
  padding: 10px 12px 10px 48px;
  position: relative;
}
ol.rail-steps li::before {
  content: counter(st);
  position: absolute;
  left: 10px;
  top: 10px;
  width: 26px;
  height: 26px;
  background: var(--blue);
  color: #fff;
  text-align: center;
  line-height: 26px;
  font-size: 13px;
}
.site-foot { color: var(--muted); font-size: 13px; margin-top: 28px; }
time { color: var(--muted); font-size: 13px; }
@media (max-width: 900px) {
  .shell-top, .hero-grid, .metrics, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .shell-top nav a { padding: 8px 10px; }
}