:root {
  color-scheme: light;
  --navy: #152b46;
  --text: #34465a;
  --muted: #66788a;
  --line: #e3e9ef;
  --surface: #f7f9fb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 5px;
}

.container {
  width: min(1120px, calc(100% - 80px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 20px;
  z-index: 1;
  padding: 8px 16px;
  background: var(--navy);
  color: #fff;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 100px;
}

.company-name {
  color: var(--navy);
  font-size: 18px;
  font-weight: 650;
  letter-spacing: .03em;
}

nav {
  display: flex;
  flex-wrap: wrap;
  flex-shrink: 0;
  gap: 32px;
  max-width: 100%;
}

nav a {
  padding-block: 10px;
  color: var(--muted);
}

nav a:hover,
.site-footer a:hover {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.intro {
  padding-block: 88px 76px;
}

.section-label {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .1em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1,
h2 {
  color: var(--navy);
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(34px, 4.5vw, 54px);
  font-weight: 600;
  letter-spacing: .035em;
  line-height: 1.4;
}

.intro-text {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 18px;
}

.content-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 64px;
  align-items: start;
  padding-block: 48px 80px;
  border-top: 1px solid var(--line);
}

.business {
  padding-top: 18px;
}

.business .section-label {
  margin-bottom: 16px;
}

h2 {
  margin-bottom: 20px;
  font-size: 26px;
  font-weight: 600;
  line-height: 1.5;
}

.business p:last-child {
  max-width: 360px;
  margin-bottom: 0;
}

.company-details {
  padding: 30px 32px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.company-details h2 {
  margin-bottom: 22px;
  font-size: 22px;
}

dl {
  margin: 0;
}

dl > div {
  padding-block: 16px;
  border-top: 1px solid var(--line);
}

dt {
  margin-bottom: 5px;
  color: var(--muted);
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.credit-code {
  letter-spacing: .025em;
}

.site-footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px 24px;
  padding-block: 28px;
  color: var(--muted);
  font-size: 16px;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 900px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding-block: 24px 18px;
  }

  .content-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .business p:last-child {
    max-width: none;
  }
}

@media (max-width: 600px) {
  .container {
    width: calc(100% - 40px);
  }

  .company-name {
    font-size: 18px;
    line-height: 1.7;
  }

  nav {
    gap: 24px;
  }

  .intro {
    padding-block: 52px 48px;
  }

  h1 {
    margin-bottom: 24px;
    font-size: 34px;
    letter-spacing: .02em;
  }

  .desktop-break {
    display: none;
  }

  .intro-text {
    font-size: 16px;
  }

  .content-grid {
    padding-block: 32px 48px;
    gap: 32px;
  }

  .business {
    padding-top: 0;
  }

  h2 {
    font-size: 24px;
  }

  .company-details {
    padding: 24px 20px 8px;
  }

  .footer-inner {
    padding-block: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}