:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  min-width: 320px;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: #edf7ff;
  background: #071a2d;
  line-height: 1.75;
}
a { color: inherit; }
.site-header { border-bottom: 1px solid #1f4d69; background: #0b253b; }
.nav-wrap, main, footer { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.nav-wrap { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: #fff; font-size: 20px; font-weight: 700; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 6px; }
nav a { padding: 8px 12px; color: #c8dbe8; text-decoration: none; }
nav a:hover, nav a.active { color: #fff; border-bottom: 2px solid #43cfed; }
main { padding: 32px 0 48px; }
.hero { display: block; width: 100%; max-height: 420px; object-fit: cover; border-radius: 8px; }
.content, .page-content { padding: 36px 0 0; }
h1, h2 { margin: 0; color: #fff; line-height: 1.3; }
h1 { font-size: 36px; }
h2 { font-size: 24px; margin-top: 36px; }
.lead { max-width: 790px; margin: 18px 0 0; color: #c7ddeb; font-size: 18px; }
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 30px 0; }
.service, .info-block { border: 1px solid #286182; border-radius: 8px; background: #0d2c45; }
.service { min-height: 150px; padding: 22px; text-decoration: none; }
.service:hover { border-color: #51d4ee; background: #103752; }
.service strong, .service span { display: block; }
.service strong { font-size: 19px; color: #fff; }
.service span { margin-top: 8px; color: #c2d7e5; font-size: 15px; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.primary-link, .secondary-link { display: inline-block; padding: 10px 18px; border-radius: 6px; text-decoration: none; font-weight: 700; }
.primary-link { background: #18b8da; color: #062033; }
.secondary-link { border: 1px solid #4f91ad; color: #e9f8ff; }
.info-block { margin-top: 20px; padding: 24px; }
.info-block p { margin: 0 0 12px; }
.info-block p:last-child { margin-bottom: 0; }
.list { margin: 16px 0 0; padding-left: 22px; color: #d1e3ed; }
.contact-list { display: grid; gap: 14px; margin-top: 24px; }
.contact-item { padding: 20px; border-left: 3px solid #27c2df; background: #0d2c45; }
.contact-item span { display: block; color: #9fc4d7; font-size: 14px; }
footer { padding: 22px 0 30px; color: #a9c2d0; font-size: 14px; text-align: center; }
footer a { text-decoration: none; }
footer a:hover { color: #fff; }
@media (max-width: 700px) {
  .nav-wrap { min-height: auto; padding: 14px 0; align-items: flex-start; flex-direction: column; gap: 8px; }
  nav { gap: 0; }
  nav a { padding: 6px 10px; }
  main { padding-top: 20px; }
  h1 { font-size: 28px; }
  .services { grid-template-columns: 1fr; }
}