:root {
  --ink: #091f27;
  --teal: #0b5a58;
  --teal-light: #15706b;
  --ivory: #f2eee5;
  --paper: #faf8f3;
  --gold: #d5ad64;
  --muted: #617075;
  --line: rgba(9, 31, 39, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }

.site-header {
  height: 86px;
  padding: 0 clamp(24px, 5vw, 84px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: absolute;
  width: 100%;
  z-index: 10;
  border-bottom: 1px solid rgba(255,255,255,.15);
  color: white;
}
.brand { display: flex; align-items: center; gap: 13px; }
.brand-mark {
  width: 39px; height: 39px; display: grid; place-items: center;
  border: 1px solid var(--gold); color: var(--gold);
  font-family: "Songti SC", serif; font-size: 21px;
}
.brand-name { font-size: 15px; letter-spacing: .08em; line-height: 1.25; }
.brand-name small {
  display: block; margin-top: 4px; font-size: 8px;
  letter-spacing: .24em; color: rgba(255,255,255,.58);
}
nav { display: flex; align-items: center; gap: clamp(24px, 3vw, 48px); font-size: 13px; }
nav a { color: rgba(255,255,255,.74); transition: color .2s; }
nav a:hover { color: white; }
.nav-contact { border: 1px solid rgba(255,255,255,.35); padding: 11px 20px; }

.hero {
  min-height: 800px; height: 100vh; max-height: 980px; position: relative;
  overflow: hidden; color: white; display: flex; align-items: center;
  padding: 120px clamp(24px, 8vw, 130px) 90px;
  background:
    radial-gradient(circle at 82% 30%, rgba(19,123,117,.65), transparent 34%),
    linear-gradient(115deg, #061922 0%, #082d35 53%, #064b4b 100%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .2;
  background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, black);
  transform: perspective(700px) rotateY(-8deg) scale(1.15);
}
.hero-copy { position: relative; z-index: 2; width: min(680px, 62%); }
.eyebrow { font-size: 11px; letter-spacing: .24em; color: var(--gold); display: flex; align-items: center; gap: 12px; }
.eyebrow span { display: inline-block; width: 28px; height: 1px; background: currentColor; }
.hero h1, .intro h2, .section-heading h2, .values-title h2, .contact h2 {
  font-family: "Songti SC", "STSong", serif; font-weight: 500;
}
.hero h1 { font-size: clamp(48px, 6vw, 82px); line-height: 1.22; letter-spacing: .04em; margin: 28px 0 30px; }
.hero-lead { width: min(570px, 90%); color: rgba(255,255,255,.67); font-size: 16px; line-height: 2; letter-spacing: .04em; }
.hero-actions { display: flex; align-items: center; gap: 42px; margin-top: 48px; }
.button-primary {
  min-width: 165px; padding: 16px 20px; background: var(--gold); color: #0d292e;
  display: flex; justify-content: space-between; font-size: 14px;
}
.button-primary span { font-size: 18px; }
.button-text { color: rgba(255,255,255,.78); font-size: 14px; border-bottom: 1px solid rgba(255,255,255,.25); padding: 14px 0; }
.button-text span { margin-left: 15px; }
.hero-visual { position: absolute; inset: 0 0 0 56%; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(1px); }
.orb-one { width: 500px; height: 500px; right: -80px; top: 95px; border: 1px solid rgba(213,173,100,.35); box-shadow: inset 0 0 80px rgba(16,133,123,.25); }
.orb-two { width: 280px; height: 280px; right: 170px; top: 205px; border: 1px solid rgba(255,255,255,.18); }
.hero-card {
  position: absolute; top: 26%; left: 13%; width: 290px; height: 365px; padding: 38px;
  background: linear-gradient(145deg, rgba(23,120,112,.78), rgba(4,35,43,.72));
  border: 1px solid rgba(255,255,255,.22); backdrop-filter: blur(12px);
  box-shadow: 0 30px 70px rgba(0,0,0,.23); transform: rotate(-3deg);
}
.card-kicker { color: var(--gold); font-size: 9px; letter-spacing: .24em; }
.hero-card strong { display: block; font-family: "Songti SC", serif; font-size: 82px; font-weight: 400; margin: 35px 0 16px; }
.hero-card p { color: rgba(255,255,255,.64); font-size: 12px; line-height: 1.9; }
.card-line { margin-top: 35px; display: flex; align-items: center; gap: 12px; }
.card-line i { flex: 1; height: 1px; background: rgba(255,255,255,.3); }
.card-line b { font-size: 10px; color: var(--gold); }
.city-line { position: absolute; bottom: 85px; border-left: 1px solid rgba(213,173,100,.55); border-top: 1px solid rgba(213,173,100,.25); }
.city-a { width: 90px; height: 250px; right: 10%; }
.city-b { width: 150px; height: 170px; right: 28%; }
.city-c { width: 80px; height: 110px; right: 47%; }
.hero-bottom { position: absolute; bottom: 31px; left: clamp(24px, 8vw, 130px); display: flex; gap: 18px; align-items: center; color: rgba(255,255,255,.45); font-size: 10px; letter-spacing: .18em; }
.hero-bottom i { width: 3px; height: 3px; background: var(--gold); border-radius: 50%; }

.section { padding: 120px clamp(24px, 8vw, 130px); }
.section-label { font-size: 11px; color: var(--teal); letter-spacing: .16em; display: flex; align-items: center; gap: 15px; }
.section-label span { color: var(--gold); }
.section-label.light { color: rgba(255,255,255,.7); }
.intro { background: var(--ivory); }
.intro-content { display: grid; grid-template-columns: 1.3fr 1fr; column-gap: 10vw; margin-top: 65px; }
.intro-kicker, .section-heading > div > p, .values-title > p { color: var(--gold); font-size: 10px; letter-spacing: .25em; }
.intro h2 { margin: 12px 0 0; font-size: clamp(38px, 4.3vw, 62px); line-height: 1.35; }
.intro-text { padding-top: 35px; color: var(--muted); font-size: 15px; line-height: 2.05; }
.intro-text p + p { margin-top: 24px; }

.services { background: var(--ink); color: white; }
.section-heading { display: grid; grid-template-columns: 1fr 1.4fr; }
.section-heading h2 { font-size: clamp(40px, 4.4vw, 64px); line-height: 1.3; margin: 15px 0 60px; }
.service-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.15); }
.service-card { padding: 36px 36px 40px; border-right: 1px solid rgba(255,255,255,.15); min-height: 390px; transition: background .25s, transform .25s; }
.service-card:first-child { padding-left: 0; }
.service-card:last-child { border: 0; }
.service-card:hover { background: rgba(255,255,255,.035); transform: translateY(-4px); }
.service-number { font-size: 10px; color: var(--gold); }
.service-symbol { width: 58px; height: 58px; position: relative; margin: 42px 0 38px; }
.service-symbol i, .service-symbol b { position: absolute; inset: 0; border: 1px solid var(--teal-light); transform: rotate(45deg); }
.service-symbol b { inset: 14px; border-color: var(--gold); }
.service-card h3 { font-family: "Songti SC", serif; font-size: 27px; font-weight: 500; margin: 0 0 18px; }
.service-card p { min-height: 84px; color: rgba(255,255,255,.55); line-height: 1.9; font-size: 13px; }
.service-card a { display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.18); padding-bottom: 13px; color: rgba(255,255,255,.76); font-size: 12px; }
.service-card a span { color: var(--gold); }

.values { background: var(--paper); }
.values-layout { margin-top: 65px; display: grid; grid-template-columns: 1fr 1.35fr; gap: 8vw; }
.values-title h2 { font-size: clamp(40px, 4.5vw, 64px); line-height: 1.3; margin: 14px 0; }
.value-list { border-top: 1px solid var(--line); }
.value-row { display: grid; grid-template-columns: 45px 130px 1fr; align-items: center; padding: 26px 0; border-bottom: 1px solid var(--line); }
.value-row > span { font-size: 10px; color: var(--gold); }
.value-row h3 { margin: 0; font-size: 18px; font-weight: 500; }
.value-row p { margin: 0; color: var(--muted); font-size: 13px; }

.contact {
  color: white; position: relative; overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(19,111,105,.8), transparent 33%), #082730;
}
.contact::after {
  content: ""; position: absolute; width: 500px; height: 500px; border-radius: 50%;
  border: 1px solid rgba(213,173,100,.22); right: -120px; bottom: -270px;
}
.contact h2 { font-size: clamp(48px, 6vw, 82px); line-height: 1.22; margin: 32px 0; }
.contact-copy { max-width: 620px; color: rgba(255,255,255,.62); line-height: 1.9; }
.contact-meta { margin-top: 65px; border-top: 1px solid rgba(255,255,255,.16); display: grid; grid-template-columns: repeat(3, 1fr); }
.contact-meta div { padding: 25px 30px 0 0; }
.contact-meta small { display: block; color: var(--gold); font-size: 10px; margin-bottom: 12px; }
.contact-meta strong { font-size: 14px; font-weight: 400; }

footer { padding: 38px clamp(24px, 5vw, 84px); background: #05171d; color: rgba(255,255,255,.45); display: flex; align-items: center; justify-content: space-between; font-size: 10px; letter-spacing: .1em; }
.footer-brand { color: white; }
.footer-records { text-align: right; }
.footer-records p { margin: 5px 0; }
.footer-records a { transition: color .2s; }
.footer-records a:hover { color: var(--gold); }

@media (max-width: 900px) {
  nav a:not(.nav-contact) { display: none; }
  .hero { min-height: 760px; height: auto; }
  .hero-copy { width: 100%; }
  .hero-visual { opacity: .38; inset-left: 25%; }
  .hero-card { left: 40%; }
  .hero-lead { width: 90%; }
  .intro-content, .section-heading, .values-layout { grid-template-columns: 1fr; }
  .section-heading > div { margin-top: 60px; }
  .service-card { padding: 32px 22px; }
}

@media (max-width: 640px) {
  .site-header { height: 74px; }
  .brand-name { font-size: 12px; }
  .brand-mark { width: 34px; height: 34px; }
  .nav-contact { padding: 9px 12px; }
  .hero { padding-top: 125px; min-height: 720px; }
  .hero h1 { font-size: 43px; }
  .hero-lead { font-size: 14px; width: 100%; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 10px; margin-top: 35px; }
  .hero-visual { display: none; }
  .hero-bottom { font-size: 8px; gap: 10px; }
  .section { padding-top: 80px; padding-bottom: 80px; }
  .intro-content { margin-top: 42px; }
  .service-list { grid-template-columns: 1fr; }
  .service-card, .service-card:first-child { padding: 35px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); min-height: auto; }
  .service-symbol { margin: 30px 0; }
  .service-card p { min-height: auto; margin-bottom: 28px; }
  .value-row { grid-template-columns: 38px 95px 1fr; }
  .value-row p { line-height: 1.6; }
  .contact-meta { grid-template-columns: 1fr; }
  .contact-meta div { border-bottom: 1px solid rgba(255,255,255,.1); padding: 20px 0; }
  footer { flex-direction: column; align-items: flex-start; gap: 20px; }
  footer > p { margin: 0; }
  .footer-records { text-align: left; }
}

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