:root {
  --bg: #e7eef8;
  --ink: #142033;
  --muted: #52627a;
  --line: #c9d6e8;
  --navy: #17315c;
  --cobalt: #2f5fa8;
  --gold: #c8922a;
  --card: #f8fbff;
  --sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}
a { color: inherit; }
.wrap { width: min(1040px, calc(100% - 28px)); margin-inline: auto; }

.skip {
  position: absolute;
  left: 8px;
  top: -48px;
  background: #fff;
  padding: 8px 12px;
}
.skip:focus { top: 8px; z-index: 6; }

.sky {
  background: linear-gradient(180deg, #12284a 0%, #1d3d6e 70%, #2a4d86 100%);
  color: #f4f7fb;
}
.sky__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}
.logo { text-decoration: none; font-weight: 700; letter-spacing: 0.04em; }
.logo small { display: block; font-weight: 500; color: #f2c14e; font-size: 0.75rem; letter-spacing: 0.14em; }
.sky nav { display: flex; gap: 16px; }
.sky nav a { color: #d5e2f5; text-decoration: none; font-size: 0.92rem; }
.sky-actions { display: flex; gap: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}
.btn--gold { background: var(--gold); color: #1b2433; }
.btn--gold:hover { background: #dbab45; }
.btn--ghost { border: 1px solid #8eafd8; color: #f4f7fb; }
.btn--navy { background: var(--navy); color: #fff; }
.btn--plain { border: 1px solid var(--line); background: #fff; color: var(--ink); }

.hero { padding: 36px 0 28px; }
.hero h1 { margin: 0 0 10px; font-size: clamp(2.4rem, 7vw, 4.2rem); line-height: 1.05; letter-spacing: -0.03em; }
.hero p { max-width: 40rem; margin: 0; color: #d5e2f5; }
.hero__row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; padding: 0; list-style: none; }
.chips li { padding: 4px 10px; border-radius: 8px; background: rgba(255,255,255,0.08); color: #f2c14e; font-size: 0.85rem; }

.sheet { margin-top: -18px; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}
.lanes { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 12px; }
.lane + .lane { margin-top: 14px; }
.lane h2, .panel h2 { margin: 0 0 6px; font-size: 1.35rem; }
.lane p, .panel p { margin: 0; color: var(--muted); }
.tag { color: var(--cobalt); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; }

.city {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
.city a, .city div {
  display: block;
  padding: 12px;
  border-radius: 10px;
  background: #eef4fb;
  text-decoration: none;
}
.city strong { display: block; }
.city span { color: var(--muted); font-size: 0.86rem; }

.steps { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.steps li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px;
  background: var(--card);
  border-left: 4px solid var(--cobalt);
  border-radius: 0 12px 12px 0;
}
.steps b { color: var(--cobalt); }

.faq details {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 12px 4px;
}
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 8px 0 0; color: var(--muted); }

.closer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin: 16px 0 8px;
  padding: 18px;
  border-radius: 16px;
  background: var(--navy);
  color: #f4f7fb;
}
.closer p { margin: 6px 0 0; color: #c9d7ea; }
.foot { color: var(--muted); font-size: 0.92rem; padding-bottom: 108px; }

.dock {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(231, 238, 248, 0.96);
  border-top: 1px solid var(--line);
}
.dock .btn { flex: 1; }

@media (max-width: 800px) {
  .sky nav, .sky-actions { display: none; }
  .lanes, .city { grid-template-columns: 1fr; }
  .closer { display: block; }
  .closer .hero__row { margin-top: 14px; }
  .dock { display: flex; }
  .logo { font-weight: 700; }
}