:root {
  color-scheme: light;
  --ink: #101b2d;
  --ink-soft: #536174;
  --paper: #f5f7f8;
  --white: #ffffff;
  --line: #dfe5e9;
  --accent: #d9b56d;
  --accent-soft: #f2e5c6;
  --mint: #a7d6c7;
  --shell: min(1120px, calc(100% - 48px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.shell { width: var(--shell); margin: 0 auto; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 8px 12px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  transform: translateY(-160%);
}

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

.site-header {
  border-bottom: 1px solid rgba(223, 229, 233, .9);
  background: rgba(245, 247, 248, .94);
}

.header-inner,
.footer-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.brand-mark,
.footer-brand img {
  width: 34px;
  height: 34px;
  object-fit: cover;
}

.site-nav { display: flex; align-items: center; gap: 28px; color: var(--ink-soft); font-size: 14px; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover { color: var(--ink); }
.site-nav .nav-contact { color: var(--ink); font-weight: 650; }

.hero {
  min-height: 610px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  align-items: center;
  gap: 72px;
  padding-top: 72px;
  padding-bottom: 88px;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .16em;
  line-height: 1.4;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: #3f9e7c;
  vertical-align: 1px;
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  max-width: 680px;
  margin-bottom: 20px;
  font-size: clamp(58px, 9vw, 112px);
  font-weight: 720;
  letter-spacing: 0;
  line-height: .98;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 14px;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 580;
  letter-spacing: 0;
  line-height: 1.25;
}

.hero-body { max-width: 510px; margin-bottom: 32px; color: var(--ink-soft); font-size: 16px; }

.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: var(--white); }
.button-primary:hover { background: #1d2d46; }
.button-light { background: var(--white); color: var(--ink); }
.button-light:hover { background: var(--accent-soft); }
.text-link { font-size: 14px; font-weight: 700; }
.text-link span { margin-left: 7px; color: #a47b2f; }

.hero-aside {
  position: relative;
  min-height: 360px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(167, 214, 199, .5);
  background: var(--ink);
}

.hero-aside::before,
.hero-aside::after {
  position: absolute;
  content: "";
  width: 1px;
  height: 100%;
  top: 0;
  background: rgba(255, 255, 255, .1);
}

.hero-aside::before { left: 25%; }
.hero-aside::after { right: 25%; }

.orbit { position: absolute; border: 1px solid rgba(167, 214, 199, .55); border-radius: 50%; transform: rotate(-24deg); }
.orbit-large { width: 360px; height: 176px; }
.orbit-small { width: 260px; height: 118px; border-color: rgba(217, 181, 109, .62); transform: rotate(28deg); }
.hero-symbol { position: relative; z-index: 1; width: 112px; height: 112px; padding: 12px; border: 1px solid rgba(255, 255, 255, .45); border-radius: 50%; background: #111e32; }
.hero-symbol img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.aside-label { position: absolute; top: 22px; left: 24px; margin: 0; color: var(--mint); font-size: 10px; font-weight: 750; letter-spacing: .15em; }
.aside-caption { position: absolute; right: 24px; bottom: 22px; margin: 0; color: rgba(255, 255, 255, .78); font-size: 13px; text-align: right; }

.signal-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); }
.signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.signal-item { display: flex; align-items: center; gap: 16px; min-height: 92px; padding: 0 24px; border-left: 1px solid var(--line); font-size: 14px; }
.signal-item:last-child { border-right: 1px solid var(--line); }
.signal-item strong { color: #a47b2f; font-size: 12px; letter-spacing: .1em; }

.content-section { padding-top: 112px; padding-bottom: 120px; }
.section-heading { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; margin-bottom: 58px; }
.section-heading h2,
.about-section h2,
.contact-panel h2 { margin-bottom: 0; font-size: clamp(32px, 5vw, 58px); font-weight: 650; letter-spacing: 0; line-height: 1.12; }
.service-list { border-top: 1px solid var(--ink); }
.service-item { display: grid; grid-template-columns: 84px minmax(0, 1fr) 32px; gap: 24px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--line); }
.service-number { color: #a47b2f; font-size: 12px; font-weight: 750; letter-spacing: .1em; }
.service-item h3 { margin-bottom: 8px; font-size: 20px; font-weight: 680; }
.service-item p { max-width: 600px; margin-bottom: 0; color: var(--ink-soft); font-size: 15px; }
.service-arrow { color: #a47b2f; font-size: 23px; line-height: 1; }

.about-section { padding: 112px 0; background: var(--accent-soft); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: end; }
.about-section h2 span { color: #8d6723; }
.about-copy { max-width: 490px; color: #5d533e; font-size: 17px; }
.about-note { padding-top: 20px; border-top: 1px solid rgba(141, 103, 35, .35); font-size: 14px; }

.contact-section { padding-top: 104px; padding-bottom: 104px; }
.contact-panel { display: flex; align-items: end; justify-content: space-between; gap: 32px; padding: 48px; background: var(--ink); color: var(--white); }
.contact-panel .eyebrow { color: var(--mint); }
.contact-status { display: inline-flex; align-items: center; min-height: 48px; padding: 0 20px; border: 1px solid rgba(255, 255, 255, .35); color: var(--white); font-size: 14px; font-weight: 700; }

.site-footer { background: var(--white); border-top: 1px solid var(--line); }
.footer-inner { min-height: 88px; }
.footer-brand { font-size: 14px; }
.footer-brand img { width: 26px; height: 26px; }
.footer-meta { display: flex; align-items: center; gap: 22px; color: var(--ink-soft); font-size: 12px; }
.footer-meta a { color: var(--ink); }
.footer-meta a:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 760px) {
  :root { --shell: min(620px, calc(100% - 32px)); }
  .header-inner { min-height: 68px; }
  .site-nav { gap: 14px; font-size: 12px; }
  .site-nav a:not(.nav-contact) { display: none; }
  .hero { display: block; min-height: 0; padding-top: 70px; padding-bottom: 64px; }
  h1 { font-size: clamp(58px, 18vw, 92px); }
  .hero-aside { min-height: 300px; margin-top: 54px; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal-item { min-height: 64px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .signal-item:last-child { border-bottom: 0; }
  .content-section { padding-top: 76px; padding-bottom: 84px; }
  .section-heading, .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .section-heading { margin-bottom: 40px; }
  .service-item { grid-template-columns: 52px minmax(0, 1fr) 24px; gap: 12px; }
  .about-section { padding: 76px 0; }
  .contact-section { padding-top: 64px; padding-bottom: 64px; }
  .contact-panel { display: block; padding: 32px 24px; }
  .contact-status { margin-top: 32px; }
  .footer-inner, .footer-meta { align-items: flex-start; }
  .footer-inner { display: block; padding-top: 24px; padding-bottom: 24px; }
  .footer-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}