:root {
  --ink: #14231f;
  --green: #102c26;
  --green-2: #173c34;
  --paper: #f3f0e7;
  --paper-2: #e8e2d4;
  --gold: #c59a55;
  --gold-bright: #e4bd76;
  --mist: #b8c8c1;
  --line: rgba(20, 35, 31, 0.18);
  --white-line: rgba(255, 255, 255, 0.17);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --page: min(1400px, calc(100vw - 96px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
::selection { color: var(--paper); background: var(--green); }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 8px 14px;
  color: white;
  background: var(--green);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  width: var(--page);
  height: 104px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(243, 240, 231, 0.22);
  color: var(--paper);
}
.brand { display: flex; align-items: center; gap: 15px; }
.brand-mark { position: relative; width: 38px; height: 38px; display: grid; place-items: center; }
.brand-mark::before,
.brand-mark::after,
.brand-mark i {
  content: "";
  position: absolute;
  border: 1px solid currentColor;
  transform: rotate(45deg);
}
.brand-mark::before { width: 28px; height: 28px; }
.brand-mark::after { width: 16px; height: 16px; background: currentColor; }
.brand-mark i:nth-child(1) { width: 35px; height: 9px; border-left: 0; border-right: 0; }
.brand-mark i:nth-child(2) { width: 9px; height: 35px; border-top: 0; border-bottom: 0; }
.brand-mark i:nth-child(3) { display: none; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy b { font-family: var(--serif); font-size: 19px; letter-spacing: .2em; }
.brand-copy small { margin-top: 7px; font-size: 8px; letter-spacing: .24em; opacity: .66; }
.site-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 48px); font-size: 14px; }
.site-nav > a:not(.nav-cta) { position: relative; padding: 10px 0; opacity: .8; }
.site-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  inset: auto 0 4px;
  height: 1px;
  background: var(--gold-bright);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s ease;
}
.site-nav > a:hover::after,
.site-nav > a.active::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: 10px 17px; border: 1px solid rgba(255,255,255,.42); transition: .25s ease; }
.nav-cta span { margin-left: 12px; color: var(--gold-bright); }
.nav-cta:hover { color: var(--green); background: var(--paper); }
.menu-toggle { display: none; border: 0; background: none; cursor: pointer; }

.hero {
  position: relative;
  min-height: 820px;
  height: 100vh;
  max-height: 980px;
  overflow: hidden;
  color: var(--paper);
  background:
    radial-gradient(circle at 74% 44%, rgba(197,154,85,.17), transparent 25%),
    linear-gradient(135deg, #0e2822 0%, #102c26 60%, #0a201b 100%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .09;
  background-image: linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, black, transparent 75%);
}
.hero::before {
  content: "";
  position: absolute;
  width: 40vw;
  height: 40vw;
  left: -22vw;
  bottom: -26vw;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 50%;
  box-shadow: 0 0 0 7vw rgba(255,255,255,.018), 0 0 0 14vw rgba(255,255,255,.012);
}
.hero-copy {
  position: absolute;
  z-index: 2;
  top: 51%;
  left: max(48px, calc((100vw - min(1400px, calc(100vw - 96px))) / 2));
  width: min(660px, 52vw);
  transform: translateY(-44%);
}
.eyebrow { display: flex; align-items: center; gap: 12px; font-size: 11px; letter-spacing: .3em; color: var(--gold-bright); }
.eyebrow span { width: 38px; height: 1px; background: currentColor; }
.hero h1 {
  margin: 35px 0 28px;
  font: 500 clamp(64px, 7vw, 112px)/1.12 var(--serif);
  letter-spacing: .04em;
}
.hero h1 em { color: var(--gold-bright); font-style: normal; }
.hero-lead { max-width: 540px; color: rgba(243,240,231,.7); font-size: 17px; line-height: 2; }
.hero-actions { display: flex; align-items: center; gap: 36px; margin-top: 42px; }
.button {
  min-height: 52px;
  padding: 12px 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 46px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.button:hover { transform: translateY(-3px); }
.button-primary { color: var(--green); background: var(--gold-bright); }
.button-primary:hover { background: var(--paper); }
.text-link { font-size: 14px; border-bottom: 1px solid rgba(255,255,255,.35); }
.text-link span { margin-left: 12px; color: var(--gold-bright); }

.hero-visual {
  position: absolute;
  z-index: 1;
  top: 53%;
  right: clamp(-60px, 5vw, 80px);
  width: min(48vw, 650px);
  aspect-ratio: 1;
  transform: translateY(-47%);
  display: grid;
  place-items: center;
}
.orbit { position: absolute; border: 1px solid rgba(228,189,118,.28); border-radius: 50%; }
.orbit::after { content: ""; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--gold-bright); box-shadow: 0 0 20px var(--gold-bright); }
.orbit-one { width: 92%; height: 92%; animation: spin 24s linear infinite; }
.orbit-one::after { top: 19%; left: 9%; }
.orbit-two { width: 68%; height: 68%; border-style: dashed; animation: spin-reverse 20s linear infinite; }
.orbit-two::after { right: 2%; top: 50%; }
.orbit-three { width: 44%; height: 44%; box-shadow: 0 0 70px rgba(197,154,85,.12) inset; animation: pulse-ring 4s ease-in-out infinite; }
.core {
  position: relative;
  z-index: 2;
  width: 25%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--green);
  background: var(--gold-bright);
  transform: rotate(45deg);
  box-shadow: 0 28px 80px rgba(0,0,0,.3);
}
.core span, .core small { position: absolute; transform: rotate(-45deg); }
.core span { font: 500 clamp(38px, 4vw, 62px)/1 var(--serif); }
.core small { top: 81%; left: 54%; font-size: 7px; letter-spacing: .2em; }
.coordinate { position: absolute; font-size: 9px; letter-spacing: .24em; color: rgba(255,255,255,.45); }
.coordinate-a { top: 5%; left: 24%; }
.coordinate-b { right: 3%; bottom: 26%; }
.visual-note { position: absolute; left: -12px; bottom: 8%; writing-mode: vertical-rl; font-size: 8px; letter-spacing: .28em; color: var(--gold-bright); }
.hero-foot {
  position: absolute;
  z-index: 2;
  bottom: 28px;
  left: max(48px, calc((100vw - min(1400px, calc(100vw - 96px))) / 2));
  display: flex;
  align-items: center;
  gap: 16px;
  color: rgba(255,255,255,.42);
  font-size: 8px;
  letter-spacing: .26em;
}
.scroll-line { position: relative; width: 70px; height: 1px; overflow: hidden; background: rgba(255,255,255,.2); }
.scroll-line i { position: absolute; width: 30px; height: 1px; background: var(--gold-bright); animation: scroll-line 2s ease-in-out infinite; }

.section-pad { padding: 132px max(48px, calc((100vw - min(1400px, calc(100vw - 96px))) / 2)); }
.section-index { font-size: 13px; letter-spacing: .08em; color: var(--gold); }
.section-index span { margin-left: 8px; color: rgba(20,35,31,.42); font-size: 9px; letter-spacing: .18em; }
.section-index.light span { color: rgba(255,255,255,.35); }
.kicker { margin: 0 0 20px; font-size: 11px; font-weight: 700; letter-spacing: .28em; color: var(--gold); }
.kicker.light { color: var(--gold-bright); }
h2 { margin: 0; font: 500 clamp(42px, 5vw, 72px)/1.3 var(--serif); letter-spacing: .035em; }

.intro { display: grid; grid-template-columns: .55fr 1.05fr 1.15fr; gap: 50px; }
.intro-title { padding-top: 66px; }
.intro-body { padding-top: 112px; }
.intro-body p { color: rgba(20,35,31,.65); }
.lead-paragraph { margin-top: 0; font: 500 21px/1.9 var(--serif); color: var(--ink) !important; }
.arrow-link { display: inline-flex; gap: 45px; margin-top: 20px; padding-bottom: 4px; border-bottom: 1px solid var(--ink); font-size: 14px; }
.arrow-link span { color: var(--gold); }
.principles { grid-column: 2 / 4; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 74px; border-top: 1px solid var(--line); }
.principles article { padding: 34px 36px 12px 0; border-right: 1px solid var(--line); }
.principles article + article { padding-left: 36px; }
.principles article:last-child { border: 0; }
.principles span { color: var(--gold); font-size: 11px; }
.principles h3 { margin: 35px 0 12px; font: 500 27px var(--serif); }
.principles p { margin: 0; color: rgba(20,35,31,.58); font-size: 14px; }

.services { color: var(--paper); background: var(--green); }
.section-head { display: grid; grid-template-columns: 1.4fr .6fr; align-items: end; gap: 80px; }
.section-head .kicker { margin-top: 60px; }
.section-head > p { max-width: 430px; margin: 0 0 10px; color: rgba(255,255,255,.55); }
.service-list { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 84px; border-top: 1px solid var(--white-line); }
.service-card { position: relative; min-height: 550px; padding: 38px 42px; border-right: 1px solid var(--white-line); transition: background .4s ease, transform .4s ease; }
.service-card:first-child { border-left: 1px solid var(--white-line); }
.service-card:hover { z-index: 1; background: var(--green-2); transform: translateY(-10px); }
.service-card.featured { background: var(--gold); color: var(--green); }
.service-number { font-size: 10px; letter-spacing: .16em; opacity: .55; }
.service-icon { width: 90px; height: 90px; margin: 72px 0 58px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.18); transform: rotate(45deg); }
.featured .service-icon { border-color: rgba(16,44,38,.28); }
.service-icon svg { width: 62px; height: 62px; fill: none; stroke: currentColor; stroke-width: 1; transform: rotate(-45deg); }
.service-card h3 { margin: 0 0 20px; font: 500 28px/1.45 var(--serif); }
.service-card p { min-height: 78px; color: rgba(255,255,255,.55); font-size: 14px; }
.featured p { color: rgba(16,44,38,.72); }
.service-card ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 30px 0 0; padding: 0; list-style: none; }
.service-card li { padding: 4px 10px; border: 1px solid rgba(255,255,255,.2); font-size: 11px; }
.featured li { border-color: rgba(16,44,38,.25); }

.cases { background: var(--paper-2); overflow: hidden; }
.cases-heading { display: grid; grid-template-columns: .55fr 1.8fr auto; align-items: end; gap: 40px; }
.case-controls { display: flex; gap: 8px; }
.case-controls button { width: 48px; height: 48px; border: 1px solid var(--line); background: transparent; cursor: pointer; transition: .25s ease; }
.case-controls button:hover { color: var(--paper); background: var(--green); }
.case-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(540px, 47vw);
  gap: 26px;
  margin-top: 72px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.case-track::-webkit-scrollbar { display: none; }
.case-card { scroll-snap-align: start; background: var(--paper); }
.case-art { position: relative; height: 350px; overflow: hidden; display: grid; place-items: center; }
.case-art b { z-index: 2; font: 400 78px/1 var(--serif); color: rgba(255,255,255,.8); }
.case-amber .case-art { background: #ad764d; }
.case-green .case-art { background: #244b42; }
.case-sand .case-art { background: #877e69; }
.mesh { position: absolute; width: 380px; height: 380px; border: 1px solid rgba(255,255,255,.22); transform: rotate(45deg); }
.mesh-a { left: -80px; }
.mesh-b { right: -80px; box-shadow: inset 0 0 0 36px rgba(255,255,255,.025), inset 0 0 0 72px rgba(255,255,255,.025); }
.rings { position: absolute; width: 380px; height: 380px; border: 1px solid rgba(228,189,118,.4); border-radius: 50%; box-shadow: 0 0 0 55px rgba(255,255,255,.04), 0 0 0 110px rgba(255,255,255,.03); }
.dot-grid { position: absolute; inset: 0; opacity: .35; background-image: radial-gradient(#fff 1px, transparent 1px); background-size: 18px 18px; mask-image: radial-gradient(circle, black, transparent 65%); }
.axis { position: absolute; inset: 12%; border: 1px solid rgba(255,255,255,.25); background: linear-gradient(45deg, transparent 49.8%, rgba(255,255,255,.3) 50%, transparent 50.2%); }
.pulse { position: absolute; width: 52%; height: 52%; border: 1px solid var(--gold-bright); transform: rotate(45deg); }
.case-content { min-height: 250px; padding: 34px 38px 38px; }
.case-content > span { color: var(--gold); font-size: 10px; letter-spacing: .14em; }
.case-content h3 { margin: 20px 0 14px; font: 500 28px var(--serif); }
.case-content p { max-width: 600px; margin: 0; color: rgba(20,35,31,.62); font-size: 14px; }
.case-note { margin: 28px 0 0; color: rgba(20,35,31,.45); font-size: 12px; }

.news { display: grid; grid-template-columns: .55fr 2.45fr; gap: 50px; }
.news-heading { display: grid; grid-template-columns: 1fr .7fr; align-items: end; gap: 70px; }
.news-heading > p { margin: 0 0 10px; color: rgba(20,35,31,.58); }
.news-list { grid-column: 2; margin-top: 70px; border-top: 1px solid var(--line); }
.news-list article { display: grid; grid-template-columns: 130px 100px 1fr 48px; align-items: center; gap: 26px; min-height: 108px; border-bottom: 1px solid var(--line); transition: padding .3s ease, background .3s ease; }
.news-list article:hover { padding: 0 18px; background: rgba(197,154,85,.07); }
.news-list time { color: rgba(20,35,31,.5); font-size: 12px; }
.tag { color: var(--gold); font-size: 11px; }
.news-list h3 { margin: 0; font: 500 19px var(--serif); }
.news-list a { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--gold); }

.contact { padding: 130px max(48px, calc((100vw - min(1400px, calc(100vw - 96px))) / 2)); display: grid; grid-template-columns: 1.1fr .9fr; gap: 9vw; color: var(--paper); background: #0b211c; }
.contact-copy h2 { margin-top: 26px; }
.contact-copy h2 em { color: var(--gold-bright); font-style: normal; }
.contact-copy > p:not(.kicker) { max-width: 560px; margin-top: 30px; color: rgba(255,255,255,.52); }
.contact-address { margin-top: 70px; padding-top: 26px; border-top: 1px solid var(--white-line); }
.contact-address span { color: var(--gold-bright); font-size: 8px; letter-spacing: .2em; }
.contact-address address { margin-top: 12px; color: rgba(255,255,255,.65); font-style: normal; font-size: 14px; }
.contact-form { padding: 42px; align-self: end; color: var(--ink); background: var(--paper); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-form label { display: block; margin-bottom: 28px; color: rgba(20,35,31,.6); font-size: 12px; }
.contact-form input:not([type="checkbox"]), .contact-form textarea { width: 100%; padding: 8px 0; border: 0; border-bottom: 1px solid rgba(20,35,31,.3); outline: 0; resize: vertical; color: var(--ink); background: transparent; transition: border-color .25s ease; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--gold); }
.contact-form .invalid { border-color: #9d342c !important; }
.consent { display: flex !important; align-items: center; gap: 9px; }
.consent input { accent-color: var(--green); }
.consent span { line-height: 1.45; }
.button-light { width: 100%; color: var(--paper); background: var(--green); }
.button-light:hover { background: var(--gold); }
.form-status { min-height: 24px; margin: 14px 0 0; font-size: 12px; color: #246d59; }
.form-status.error { color: #9d342c; }

.site-footer { padding: 55px max(48px, calc((100vw - min(1400px, calc(100vw - 96px))) / 2)); display: grid; grid-template-columns: 1.2fr .8fr 1fr; align-items: center; gap: 40px; color: rgba(243,240,231,.6); background: #071914; border-top: 1px solid var(--white-line); font-size: 11px; }
.footer-brand { display: flex; align-items: center; gap: 15px; color: var(--paper); }
.footer-brand .brand-mark { transform: scale(.7); }
.footer-brand strong { font: 500 15px var(--serif); letter-spacing: .12em; }
.site-footer > p { text-align: center; letter-spacing: .15em; }
.footer-meta { display: flex; justify-content: flex-end; gap: 30px; }
.footer-meta a { color: var(--gold-bright); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }
@keyframes pulse-ring { 50% { transform: scale(1.07); opacity: .55; } }
@keyframes scroll-line { from { transform: translateX(-34px); } to { transform: translateX(74px); } }

@media (max-width: 1050px) {
  :root { --page: calc(100vw - 48px); }
  .site-header { height: 84px; }
  .menu-toggle { z-index: 2; width: 42px; height: 42px; display: grid; place-content: center; gap: 7px; color: var(--paper); }
  .menu-toggle span { width: 25px; height: 1px; background: currentColor; transition: .3s ease; }
  .menu-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-open .menu-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; padding: 120px 24px 50px; display: flex; flex-direction: column; justify-content: center; gap: 18px; background: rgba(7,25,20,.98); transform: translateX(100%); transition: transform .45s cubic-bezier(.2,.7,.2,1); }
  .menu-open .site-nav { transform: translateX(0); }
  .site-nav a { width: min(400px, 100%); padding: 12px 0 !important; font: 500 25px var(--serif); }
  .nav-cta { margin-top: 20px; text-align: center; }
  .hero { min-height: 760px; }
  .hero-copy { width: 65vw; }
  .hero-visual { right: -18vw; width: 64vw; opacity: .72; }
  .section-pad { padding: 100px 24px; }
  .intro { grid-template-columns: .3fr 1fr 1fr; gap: 30px; }
  .principles { grid-column: 1 / 4; }
  .service-card { padding: 32px 28px; }
  .case-track { grid-auto-columns: minmax(460px, 68vw); }
  .news { grid-template-columns: .3fr 2fr; gap: 30px; }
  .contact { padding: 100px 24px; gap: 60px; }
  .site-footer { padding: 45px 24px; }
}

@media (max-width: 760px) {
  .brand-copy b { font-size: 16px; }
  .brand-copy small { letter-spacing: .14em; }
  .hero { min-height: 740px; max-height: 880px; }
  .hero-copy { top: 45%; left: 24px; width: calc(100vw - 48px); transform: translateY(-42%); }
  .hero h1 { margin-top: 26px; font-size: clamp(48px, 14.5vw, 68px); }
  .hero-lead { width: 92%; font-size: 15px; }
  .hero-actions { margin-top: 30px; gap: 22px; }
  .button { gap: 28px; }
  .hero-visual { top: auto; right: -22vw; bottom: -21vw; width: 86vw; transform: none; opacity: .42; }
  .core small, .coordinate, .visual-note { display: none; }
  .hero-foot { left: 24px; }
  .intro { display: block; }
  .intro-title { padding-top: 35px; }
  .intro-body { padding-top: 42px; }
  .principles { display: block; margin-top: 55px; }
  .principles article, .principles article + article { padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .principles h3 { margin: 14px 0 8px; }
  .section-head { display: block; }
  .section-head > p { margin-top: 34px; }
  .service-list { display: block; margin-top: 55px; }
  .service-card { min-height: auto; padding: 30px 24px 38px; border: 1px solid var(--white-line); border-top: 0; }
  .service-card:first-child { border-top: 1px solid var(--white-line); }
  .service-icon { margin: 44px 0 36px; }
  .service-card p { min-height: 0; }
  .cases-heading { grid-template-columns: 1fr auto; }
  .cases-heading > .section-index { grid-column: 1 / 3; }
  .case-track { grid-auto-columns: 88vw; margin-top: 48px; }
  .case-art { height: 240px; }
  .case-content { min-height: 270px; padding: 28px; }
  .news { display: block; }
  .news-heading { display: block; margin-top: 40px; }
  .news-heading > p { margin-top: 30px; }
  .news-list { margin-top: 50px; }
  .news-list article { grid-template-columns: 1fr 42px; gap: 8px 20px; padding: 22px 0; }
  .news-list time, .news-list .tag { grid-row: 1; }
  .news-list .tag { text-align: right; }
  .news-list h3 { grid-column: 1; grid-row: 2; padding-right: 8px; }
  .news-list a { grid-column: 2; grid-row: 2; }
  .contact { display: block; }
  .contact-form { margin-top: 60px; padding: 30px 22px; }
  .field-row { display: block; }
  .site-footer { display: block; text-align: center; }
  .footer-brand { justify-content: center; }
  .site-footer > p { margin: 28px 0; }
  .footer-meta { justify-content: center; flex-wrap: wrap; gap: 14px 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}