:root {
  --ink: #12263a;
  --navy: #12324f;
  --blue: #1f5f8b;
  --gold: #c8922a;
  --bg: #f5f7fa;
  --card: #ffffff;
  --line: #e3e8ee;
  --text: #1d2a36;
  --muted: #5d6b78;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--navy); }
.logo { width: 40px; height: 40px; flex: none; }
.brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; letter-spacing: 0.04em; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--ink);
}
.nav a[aria-current="page"], .nav a:hover { background: #e8f0f6; color: var(--blue); }
.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  font: inherit;
}

.hero {
  background:
    radial-gradient(circle at 90% 10%, rgba(200, 146, 42, 0.18), transparent 28%),
    linear-gradient(160deg, #12324f 0%, #1b4d73 55%, #24648f 100%);
  color: #fff;
}
.hero-inner { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 48px; align-items: center; padding: 72px 0; }
.kicker { color: #f4c56a; letter-spacing: 0.12em; font-size: 13px; margin: 0 0 12px; }
h1 { font-size: 46px; line-height: 1.25; margin: 0 0 16px; }
.lead { font-size: 18px; color: rgba(255,255,255,0.88); margin: 0 0 28px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 600;
}
.btn-primary { background: #f4c56a; color: #1b2430; }
.btn-ghost { border-color: rgba(255,255,255,0.45); color: #fff; }
.btn-dark { background: var(--navy); color: #fff; }
.hero-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 16px;
  padding: 24px;
}
.hero-card strong { display: block; font-size: 18px; margin-bottom: 8px; }
.hero-card p { margin: 0; color: rgba(255,255,255,0.84); }
.feature-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.feature-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.84);
  font-size: 14px;
}
.feature-list li:first-child { border-top: none; padding-top: 0; }
.feature-list span {
  color: #f4c56a;
  font-weight: 600;
}
.card-note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.section { padding: 72px 0; }
.section h2 { font-size: 32px; margin: 0 0 8px; color: var(--navy); }
.section-lead { color: var(--muted); margin: 0 0 28px; max-width: 680px; }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; color: var(--navy); }
.card p { margin: 0; color: var(--muted); }
.num { color: var(--gold); font-weight: 700; letter-spacing: 0.08em; font-size: 13px; }

.band { background: #fff; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.step { background: var(--bg); border-radius: 12px; padding: 18px; }
.step h3 { margin: 8px 0; font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.page-head { padding: 48px 0 12px; }
.page-head h1 { color: var(--navy); font-size: 36px; margin: 0 0 8px; }
.page-head p { margin: 0; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-grid a { color: var(--blue); }
dl { margin: 0; }
dt { color: var(--muted); font-size: 13px; }
dd { margin: 0 0 14px; }

.site-footer { background: var(--navy); color: rgba(255,255,255,0.86); padding: 36px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; }
.site-footer a { color: #fff; }
.site-footer h2 { font-size: 16px; margin: 0 0 10px; }
.site-footer p { margin: 0 0 8px; }
.copyright { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 24px; padding-top: 16px; font-size: 13px; color: rgba(255,255,255,0.65); }

@media (max-width: 900px) {
  .hero-inner, .grid-3, .grid-2, .steps, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  h1 { font-size: 34px; }
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
  }
  .nav.open { display: flex; }
}