:root {
  --blue: #087be8;
  --blue-strong: #075ec1;
  --blue-soft: #eaf5ff;
  --ink: #10233b;
  --muted: #607187;
  --line: #dbe8f5;
  --surface: #ffffff;
  --shadow: 0 20px 60px rgba(9, 74, 138, 0.12);
  --radius: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #f8fbff;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(219, 232, 245, 0.85);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; color: var(--blue-strong); }
.brand-crop { position: relative; width: 106px; height: 54px; overflow: hidden; flex: 0 0 auto; }
.brand-crop img { position: absolute; width: 224px; max-width: none; transform: translate(-35px, -50px); }
.brand-copy small { display: block; color: var(--muted); font-size: 12px; line-height: 1.2; font-weight: 600; letter-spacing: .06em; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 15px; font-weight: 650; }
.nav a { position: relative; padding: 8px 0; }
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 2px; background: var(--blue); transition: right .2s ease; }
.nav a:hover::after, .nav a[aria-current="page"]::after { right: 0; }
.menu-button { display: none; border: 0; background: transparent; color: var(--ink); font-size: 26px; padding: 8px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 76px;
  background: linear-gradient(135deg, #f8fcff 0%, #e9f5ff 54%, #d9efff 100%);
}
.hero::before, .hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}
.hero::before { width: 430px; height: 430px; right: -150px; top: -210px; background: rgba(0, 127, 232, .12); }
.hero::after { width: 240px; height: 240px; left: -110px; bottom: -150px; border: 38px solid rgba(0, 127, 232, .08); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.13fr .87fr; align-items: center; gap: 68px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 13px; border-radius: 999px; color: var(--blue-strong); background: #fff; box-shadow: 0 8px 28px rgba(9, 85, 154, .08); font-weight: 700; font-size: 14px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px var(--blue-soft); }
h1, h2, h3 { margin-top: 0; line-height: 1.25; }
h1 { margin-bottom: 22px; font-size: clamp(40px, 5.2vw, 72px); letter-spacing: -.04em; }
h2 { margin-bottom: 16px; font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -.025em; }
h3 { margin-bottom: 10px; font-size: 21px; }
.hero h1 span { color: var(--blue); }
.hero-copy > p { max-width: 690px; margin: 0; color: #425a73; font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 14px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: linear-gradient(135deg, var(--blue), var(--blue-strong)); box-shadow: 0 12px 28px rgba(8, 123, 232, .25); }
.button-secondary { border: 1px solid var(--line); background: white; }
.hero-panel { position: relative; min-height: 405px; }
.route-card { position: absolute; border: 1px solid rgba(255,255,255,.85); border-radius: 28px; background: rgba(255,255,255,.82); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.route-card.main { inset: 28px 8px 30px 38px; padding: 34px; transform: rotate(2deg); }
.route-card.main::before { content: "AU"; display: grid; place-items: center; width: 72px; height: 72px; border-radius: 22px; color: white; background: var(--blue); font-size: 23px; font-weight: 900; letter-spacing: .08em; }
.route-line { height: 8px; margin: 38px 0 28px; border-radius: 99px; background: repeating-linear-gradient(90deg, var(--blue) 0 16px, transparent 16px 30px); transform: rotate(-8deg); opacity: .7; }
.route-card.main strong { display: block; font-size: 23px; }
.route-card.main p { margin: 6px 0 0; color: var(--muted); }
.route-pin { position: absolute; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 20px; color: white; background: #17b57c; box-shadow: 0 15px 30px rgba(23,181,124,.25); font-size: 26px; font-weight: 900; }
.route-pin.one { right: 0; top: 0; }
.route-pin.two { left: 0; bottom: 2px; background: #ffad32; }

.section { padding: 82px 0; }
.section-white { background: #fff; }
.section-intro { max-width: 720px; margin-bottom: 36px; }
.section-intro p, .prose p, .card p, .list-clean { color: var(--muted); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { height: 100%; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 10px 34px rgba(16, 35, 59, .05); }
.card-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 20px; border-radius: 16px; color: var(--blue-strong); background: var(--blue-soft); font-size: 25px; }
.card p { margin: 0; }
.notice { display: flex; gap: 16px; align-items: flex-start; margin-top: 34px; padding: 22px 24px; border: 1px solid #b9dcfb; border-radius: 18px; color: #234a70; background: #edf7ff; }
.notice-mark { flex: 0 0 auto; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; color: white; background: var(--blue); font-weight: 900; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { position: relative; padding: 30px 26px; border-radius: var(--radius); color: white; background: #0c3156; overflow: hidden; }
.step::after { counter-increment: step; content: "0" counter(step); position: absolute; right: 18px; bottom: -20px; font-size: 86px; font-weight: 900; color: rgba(255,255,255,.08); line-height: 1; }
.step p { color: #c7ddf2; margin: 0; }
.step strong { display: inline-block; margin-bottom: 12px; color: #71c5ff; }
.split { display: grid; grid-template-columns: .88fr 1.12fr; gap: 56px; align-items: start; }
.stat-block { padding: 34px; border-radius: 30px; background: linear-gradient(145deg, #087be8, #0754ad); color: white; box-shadow: var(--shadow); }
.stat-block strong { display: block; font-size: 42px; line-height: 1.1; }
.stat-block p { color: #d9ecff; margin: 10px 0 0; }

.page-hero { padding: 64px 0 50px; border-bottom: 1px solid var(--line); background: linear-gradient(135deg, #f7fbff, #e7f4ff); }
.page-hero h1 { margin: 12px 0 12px; font-size: clamp(36px, 5vw, 58px); }
.page-hero p { max-width: 760px; margin: 0; color: var(--muted); font-size: 18px; }
.prose { max-width: 850px; }
.prose h2 { margin-top: 48px; font-size: 28px; }
.prose h3 { margin-top: 28px; }
.prose ul { padding-left: 1.3em; color: var(--muted); }
.prose li + li { margin-top: 9px; }
.meta-line { margin: 4px 0 32px; color: var(--muted); font-size: 14px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.contact-value { font-size: 19px; font-weight: 750; color: var(--blue-strong); word-break: break-word; }

.site-footer { padding: 42px 0 28px; color: #b9caDA; background: #0b2138; }
.footer-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; }
.footer-title { color: white; font-size: 20px; font-weight: 800; }
.footer-copy { margin: 8px 0 0; max-width: 700px; font-size: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 20px; justify-content: flex-end; align-content: start; font-size: 14px; }
.footer-links a:hover, .icp:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 30px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; }

@media (max-width: 900px) {
  .nav { display: none; position: absolute; inset: 76px 0 auto; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 20px 20px; border-bottom: 1px solid var(--line); background: white; }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 0; }
  .menu-button { display: block; }
  .hero { padding-top: 58px; }
  .hero-grid, .split { grid-template-columns: 1fr; }
  .hero-panel { min-height: 350px; max-width: 520px; width: 100%; margin: 0 auto; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .steps { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1160px); }
  .header-inner { min-height: 68px; }
  .brand-copy { display: none; }
  .nav { top: 68px; }
  .hero { padding: 48px 0 56px; }
  .hero-copy > p, .page-hero p { font-size: 16px; }
  .hero-panel { min-height: 310px; }
  .route-card.main { inset: 26px 0 24px 26px; padding: 28px; }
  .route-pin.one { right: 4px; }
  .section { padding: 60px 0; }
  .grid-4, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}