:root {
  --ink: #142033;
  --muted: #5b6578;
  --line: #e4e8ef;
  --bg: #f6f7f9;
  --card: #fff;
  --brand: #1f4e8c;
  --brand-2: #163a68;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.top {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
.logo { font-weight: 700; color: var(--ink); font-size: 18px; letter-spacing: .02em; }
.logo small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; letter-spacing: 0; }
nav { display: flex; flex-wrap: wrap; gap: 14px 18px; font-size: 14px; }
nav a { color: var(--ink); }
.hero {
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: #fff;
  padding: 56px 0 48px;
}
.hero h1 { margin: 0 0 10px; font-size: 32px; line-height: 1.35; }
.hero p { margin: 0 0 8px; opacity: .95; max-width: 760px; }
.hero .en { opacity: .82; font-size: 15px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
}
.section { padding: 36px 0; }
h2 { margin: 0 0 16px; font-size: 22px; }
h3 { margin: 18px 0 8px; font-size: 17px; }
p { margin: 0 0 12px; }
ul { margin: 0 0 12px; padding-left: 20px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { width: 180px; background: #eef3f9; color: #334; font-weight: 600; }
.foot {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 28px 0 36px;
  color: var(--muted);
  font-size: 13px;
}
.foot a { color: var(--muted); }
.beian { margin-top: 8px; }
.btn {
  display: inline-block;
  background: #fff;
  color: var(--brand-2);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  margin-right: 10px;
}
.btn:hover { text-decoration: none; opacity: .92; }
@media (max-width: 720px) {
  .hero h1 { font-size: 24px; }
  .top-inner { flex-direction: column; align-items: flex-start; }
  th { width: 110px; }
}