:root {
  --blue: #08a9f5;
  --blue-deep: #087ec5;
  --navy: #082a51;
  --ink: #1f2937;
  --muted: #69788d;
  --soft: #f4f6f9;
  --line: #e5e9ee;
  --white: #ffffff;
  --shadow: 0 18px 46px rgba(10, 56, 94, 0.12);
  --container: 1400px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  height: 112px;
  background: #fff;
  position: relative;
  z-index: 20;
}

.site-header--overlay {
  position: absolute;
  inset: 0 0 auto;
  background: linear-gradient(180deg, rgba(2, 25, 58, 0.86), rgba(2, 25, 58, 0));
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  width: 270px;
}

.brand img {
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(28px, 3.1vw, 64px);
}

.site-nav a {
  position: relative;
  padding: 40px 0 35px;
  color: #111827;
  font-size: 22px;
  letter-spacing: .04em;
}

.site-header--overlay .site-nav a {
  color: #fff;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 20px;
  height: 3px;
  background: var(--white);
  transition: .25s ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  left: -10px;
  right: -10px;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
}

.nav-toggle>span:not(.sr-only) {
  display: block;
  width: 26px;
  height: 2px;
  margin: 5px;
  background: currentColor;
}

.inner-hero {
  min-height: 700px;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(5, 33, 67, .34), rgba(5, 33, 67, .05)),
    url("../images/hero-inner.jpg") center/cover no-repeat;
}

.inner-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 4.5vw, 76px);
  line-height: 1.2;
  letter-spacing: .08em;
  text-shadow: 0 5px 16px rgba(4, 26, 52, .46);
}

.inner-hero p {
  margin: 0;
  font-size: clamp(14px, 1.4vw, 23px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: .05em;
}

.breadcrumb {
  padding: 24px 0;
  color: #8a9099;
  font-size: 14px;
}

.breadcrumb a:last-child {
  color: var(--blue);
  font-weight: 700;
}

.page-shell {
  background: #f3f3f3;
}

.content-card {
  min-height: 1320px;
  padding: 82px 80px 110px;
  border-radius: 60px 60px 0 0;
  background: #fff;
}

.page-heading {
  padding-bottom: 58px;
  border-bottom: 1px solid #d9dde2;
  text-align: center;
}

.page-heading p {
  margin: 0 0 18px;
  color: #415369;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .08em;
}

.page-heading h2 {
  margin: 0;
  color: var(--blue);
  font-size: 38px;
  letter-spacing: .04em;
}

.site-footer {
  padding: 62px 0;
  color: #fff;
  background: var(--navy);
}

.footer-inner {
  display: grid;
  grid-template-columns: 300px 1fr auto;
  align-items: center;
  gap: 46px;
}

.footer-brand img {
  object-fit: cover;
}

.site-footer nav {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 3vw, 58px);
  font-weight: 700;
}

.site-footer a {
  transition: color .2s ease;
}

.site-footer a:hover {
  color: #35bcff;
}

.social {
  display: flex;
  gap: 20px;
  align-items: center;
  font-weight: 700;
}

@media (max-width: 900px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .site-header {
    height: 78px;
  }

  .brand {
    width: 205px;
  }

  .nav-toggle {
    display: block;
    color: #10233a;
    cursor: pointer;
  }

  .site-header--overlay .nav-toggle {
    color: #fff;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 16px;
    right: 16px;
    padding: 12px 22px;
    border-radius: 14px;
    background: rgba(5, 36, 69, .98);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a,
  .site-header--overlay .site-nav a {
    color: #fff;
    padding: 14px 0;
  }

  .site-nav a::after {
    bottom: 7px;
  }

  .inner-hero {
    min-height: 460px;
    padding-top: 40px;
  }

  .inner-hero h1 {
    font-size: 36px;
  }

  .inner-hero p {
    font-size: 11px;
    line-height: 1.8;
  }

  .breadcrumb {
    padding: 18px 0;
  }

  .content-card {
    min-height: auto;
    padding: 52px 22px 72px;
    border-radius: 28px 28px 0 0;
  }

  .page-heading {
    padding-bottom: 38px;
  }

  .page-heading p {
    font-size: 13px;
  }

  .page-heading h2 {
    font-size: 30px;
  }

  .section-heading--spaced {
    margin-bottom: 42px;
  }

  .site-footer {
    padding: 42px 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 32px;
  }

  .footer-brand {
    width: 220px;
  }

  .site-footer nav {
    flex-wrap: wrap;
    gap: 18px 26px;
  }
}