:root {
  color-scheme: light;
  --ink: #0a1524;
  --ink-soft: #405064;
  --paper: #f4f2ec;
  --paper-bright: #fcfbf8;
  --line: rgba(10, 21, 36, 0.14);
  --accent: #f1633a;
  --accent-dark: #cf4823;
  --navy: #08121f;
  --navy-soft: #101f31;
  --mint: #9dd8c8;
  --shell: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: white;
  background: var(--navy);
  border-radius: 8px;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 242, 236, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--navy);
  border-radius: 12px 4px 12px 4px;
  font-size: 20px;
  font-weight: 800;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-copy strong {
  letter-spacing: 0.14em;
  font-size: 15px;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 11px;
  letter-spacing: 0.2em;
}

nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

nav a {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition:
    color 160ms ease,
    transform 160ms ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--ink);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 88px;
  background:
    radial-gradient(circle at 88% 16%, rgba(157, 216, 200, 0.48), transparent 31%),
    linear-gradient(140deg, #f8f6f0 0%, #ece9e0 100%);
}

.hero::after {
  position: absolute;
  right: -130px;
  bottom: -215px;
  width: 520px;
  height: 520px;
  content: "";
  border: 1px solid rgba(10, 21, 36, 0.12);
  border-radius: 50%;
  box-shadow:
    0 0 0 70px rgba(10, 21, 36, 0.025),
    0 0 0 140px rgba(10, 21, 36, 0.018);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  align-items: end;
  gap: 90px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(50px, 6.4vw, 88px);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.hero-lead {
  max-width: 680px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition:
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: white;
  background: var(--ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  color: white;
  background: var(--ink);
}

.hero-card {
  padding: 36px;
  color: white;
  background: var(--navy);
  border-radius: 4px 34px 4px 34px;
  box-shadow: 0 25px 80px rgba(8, 18, 31, 0.24);
}

.card-label {
  margin: 0 0 26px;
  color: var(--mint);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.hero-card ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-card li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
}

.hero-card li > span {
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 15px;
}

.hero-card li div {
  display: grid;
  gap: 5px;
}

.hero-card li strong {
  font-size: 17px;
}

.hero-card li small {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.statement {
  color: white;
  background: var(--accent-dark);
}

.statement-inner {
  padding: 35px 0;
}

.statement p {
  max-width: 1000px;
  margin: 0;
  font-family: Georgia, serif;
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.55;
}

.section {
  padding: 112px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  column-gap: 70px;
  align-items: end;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
}

.section h2 {
  margin: 0;
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(38px, 4vw, 58px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.section-heading > p:last-child,
.about-intro,
.contact p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 62px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-grid article {
  min-height: 290px;
  padding: 34px;
  background: var(--paper-bright);
}

.service-index {
  color: var(--accent-dark);
  font-family: Georgia, serif;
  font-size: 13px;
}

.service-grid h3 {
  margin: 78px 0 14px;
  font-size: 21px;
}

.service-grid p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.section-dark {
  color: white;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), transparent 45%),
    var(--navy);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.68fr 1.32fr;
  gap: 90px;
}

.section-dark .eyebrow {
  color: var(--mint);
}

.section-dark .about-intro {
  margin-top: 30px;
  color: rgba(255, 255, 255, 0.62);
}

.company-details {
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.company-details div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.company-details dt {
  color: rgba(255, 255, 255, 0.53);
  font-size: 13px;
}

.company-details dd {
  margin: 0;
  font-size: 15px;
}

.contact {
  background: var(--paper-bright);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 90px;
}

.contact p {
  margin-top: 24px;
}

.contact-card {
  display: grid;
  gap: 12px;
  padding: 38px 42px;
  color: white;
  background: var(--accent-dark);
  border-radius: 4px 28px 4px 28px;
  text-decoration: none;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.contact-card:hover,
.contact-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(207, 72, 35, 0.24);
}

.contact-card span,
.contact-card small {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.contact-card strong {
  overflow-wrap: anywhere;
  font-family: Georgia, serif;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 500;
}

footer {
  padding: 42px 0;
  color: rgba(255, 255, 255, 0.7);
  background: #050b13;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 16px 40px;
}

.footer-grid strong {
  color: white;
  letter-spacing: 0.15em;
}

.footer-grid p {
  margin: 5px 0 0;
  font-size: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 13px;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: white;
}

.copyright {
  grid-column: 1 / -1;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.legal-page {
  min-height: 70vh;
  padding: 100px 0;
  background: var(--paper-bright);
}

.legal-content {
  max-width: 820px;
}

.legal-content > h1 {
  margin: 0;
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(48px, 6vw, 72px);
  line-height: 1.1;
}

.legal-date {
  margin: 22px 0 62px;
  color: var(--ink-soft);
}

.legal-content section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.legal-content section h2 {
  margin: 0 0 12px;
  font-family: inherit;
  font-size: 20px;
}

.legal-content section p {
  margin: 0;
  color: var(--ink-soft);
}

.legal-content section a {
  color: var(--accent-dark);
}

@media (max-width: 900px) {
  .hero {
    padding-top: 82px;
  }

  .hero-grid,
  .section-heading,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .about-grid,
  .contact-grid {
    gap: 54px;
  }

  .hero-card {
    max-width: 620px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-grid article {
    min-height: auto;
  }

  .service-grid h3 {
    margin-top: 36px;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: min(100% - 28px, 1180px);
  }

  .nav-wrap {
    min-height: 68px;
  }

  nav {
    gap: 16px;
  }

  nav a {
    display: none;
  }

  nav a:last-child {
    display: inline;
  }

  .hero {
    padding: 68px 0 64px;
  }

  .hero h1 {
    font-size: clamp(44px, 14vw, 64px);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-card,
  .contact-card {
    padding: 28px;
  }

  .section {
    padding: 78px 0;
  }

  .company-details div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    gap: 16px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}