:root {
  --ink: #071d26;
  --ink-2: #0b2834;
  --cream: #f4f0e7;
  --paper: #fbfaf6;
  --gold: #c6a25a;
  --green: #80a99a;
  --muted: #66757a;
}

* { 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", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.nav {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  width: min(1320px, calc(100% - 64px));
  height: 96px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.brand { display: flex; align-items: center; gap: 13px; }
.brand-mark {
  width: 42px; height: 42px; border: 1px solid rgba(198,162,90,.9);
  display: grid; place-items: center; color: var(--gold);
  font: 600 11px/1 Georgia, serif; letter-spacing: .08em;
  transform: rotate(45deg);
}
.brand-mark::first-line { transform: rotate(-45deg); }
.brand-mark { text-indent: 0; }
.brand-mark { writing-mode: horizontal-tb; }
.brand-mark { clip-path: polygon(50% 0,100% 50%,50% 100%,0 50%); background: rgba(198,162,90,.08); }
.brand-name { font-family: "Songti SC", SimSun, serif; font-size: 21px; font-weight: 600; letter-spacing: .18em; }
.nav-links { display: flex; gap: 46px; font-size: 14px; color: rgba(255,255,255,.76); }
.nav-links a, .nav-contact { transition: color .25s ease; }
.nav-links a:hover, .nav-contact:hover { color: var(--gold); }
.nav-contact {
  border: 1px solid rgba(255,255,255,.3); padding: 12px 18px;
  font-size: 13px; letter-spacing: .08em;
}

.hero {
  min-height: 860px;
  position: relative;
  overflow: hidden;
  padding: 200px max(7vw, 48px) 50px;
  color: #fff;
  background:
    radial-gradient(circle at 78% 49%, rgba(32,101,104,.42), transparent 25%),
    linear-gradient(115deg, #061920 0%, #092732 58%, #073038 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .065;
  background-image: linear-gradient(rgba(255,255,255,.7) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.7) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent 36%, #000);
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 180px;
  background: linear-gradient(transparent, rgba(2,18,23,.3));
}
.hero-kicker {
  position: relative; z-index: 2; display: flex; align-items: center; gap: 12px;
  color: var(--gold); font-size: 11px; letter-spacing: .26em; font-weight: 600;
}
.signal { width: 26px; height: 1px; background: var(--gold); position: relative; }
.signal::before { content:""; position:absolute; width:4px; height:4px; border-radius:50%; background:var(--gold); right:0; top:-1px; }
.hero h1 {
  position: relative; z-index: 2; margin: 28px 0 24px;
  font-family: "Songti SC", "STSong", serif; font-weight: 500;
  font-size: clamp(54px, 6.3vw, 98px); line-height: 1.16; letter-spacing: -.035em;
}
.hero h1 em { color: var(--gold); font-style: normal; }
.hero-lead {
  position: relative; z-index: 2; max-width: 650px; margin: 0;
  color: rgba(255,255,255,.68); font-size: 17px; line-height: 1.9; letter-spacing: .04em;
}
.hero-actions { position: relative; z-index: 2; display:flex; align-items:center; gap:38px; margin-top: 40px; }
.button { padding: 17px 24px; font-size: 14px; letter-spacing: .08em; }
.button-primary { background: var(--gold); color: #081c24; }
.button-primary span { margin-left: 20px; }
.text-link { font-size: 14px; color: rgba(255,255,255,.8); padding-bottom: 7px; border-bottom: 1px solid rgba(255,255,255,.35); }
.text-link span { margin-left: 18px; color: var(--gold); }
.hero-proof {
  position: absolute; z-index: 3; left: max(7vw, 48px); bottom: 58px;
  display: flex; align-items: center; gap: 38px;
}
.hero-proof div { display: grid; gap: 5px; }
.hero-proof strong { font: 500 30px/1 Georgia, serif; color: #fff; }
.hero-proof strong span { color: var(--gold); font-size: 16px; margin-left: 3px; }
.hero-proof div:last-child strong { font-family: "Songti SC", serif; font-size: 22px; }
.hero-proof div > span { color: rgba(255,255,255,.45); font-size: 11px; letter-spacing: .1em; }
.hero-proof i { display:block; width:1px; height:34px; background:rgba(255,255,255,.16); }

.hero-orbit { position:absolute; z-index:1; width:640px; height:640px; right:4vw; top:150px; }
.hero-portrait {
  position:absolute; z-index:2; right:max(6vw,52px); top:178px; width:300px; height:430px;
  overflow:hidden; border:1px solid rgba(198,162,90,.42); background:#0b2834;
  box-shadow:0 30px 70px rgba(0,0,0,.3);
}
.hero-portrait::after {
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg,transparent 58%,rgba(4,18,24,.82));
}
.hero-portrait img { width:100%; height:100%; object-fit:cover; object-position:center 19%; filter:saturate(.72) contrast(1.04); }
.hero-portrait > span {
  position:absolute; z-index:2; left:22px; bottom:19px; color:rgba(255,255,255,.68);
  font:10px/1 Georgia,serif; letter-spacing:.25em;
}
.orbit { position:absolute; border:1px solid rgba(148,195,181,.18); border-radius:50%; inset:0; }
.orbit-two { inset:70px; border-color:rgba(198,162,90,.17); }
.orbit-three { inset:160px; border-color:rgba(255,255,255,.1); }
.orbit::after, .orbit::before { content:""; position:absolute; background:rgba(255,255,255,.07); }
.orbit::after { width:1px; height:100%; left:50%; }
.orbit::before { height:1px; width:100%; top:50%; }
.orbit-dot { position:absolute; width:8px; height:8px; background:var(--gold); border-radius:50%; box-shadow:0 0 0 7px rgba(198,162,90,.1); }
.dot-one { left:70px; top:310px; }
.dot-two { right:119px; top:104px; background:var(--green); }
.dot-three { right:155px; bottom:111px; width:5px; height:5px; }

.section { padding: 125px max(7vw, 48px); }
.section-label { color:#957c4e; font-size:11px; font-weight:600; letter-spacing:.22em; text-transform:uppercase; }
.section-label.light { color:var(--gold); }
.intro { background:var(--cream); }
.intro-grid { display:grid; grid-template-columns: minmax(360px, .9fr) 1.1fr; gap:10vw; margin-top:56px; }
.intro h2, .journey h2, .contact h2 {
  margin:0; font-family:"Songti SC","STSong",serif; font-weight:500; line-height:1.4;
  font-size:clamp(38px,4.1vw,65px); letter-spacing:-.04em;
}
.intro h2 span, .contact h2 span { color:var(--gold); }
.intro-copy { max-width:650px; }
.intro-copy > p { margin:0 0 22px; color:#526268; font-size:16px; line-height:2; letter-spacing:.025em; }
blockquote {
  position:relative; margin:48px 0 0; padding:27px 0 0 34px; border-top:1px solid rgba(7,29,38,.16);
  color:var(--ink); font:500 23px/1.8 "Songti SC",serif;
}
blockquote > span { position:absolute; left:0; top:18px; color:var(--gold); font:52px/1 Georgia,serif; }

.expertise { background:var(--ink); color:#fff; }
.section-head { display:flex; justify-content:space-between; align-items:end; gap:30px; }
.section-head h2 { margin:20px 0 0; font:500 clamp(36px,3.6vw,56px)/1.35 "Songti SC",serif; }
.section-head > p { margin:0; max-width:370px; color:rgba(255,255,255,.46); font-size:14px; line-height:1.9; }
.capability-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:65px; }
.capability-card {
  position:relative; min-height:475px; padding:28px;
  background:#0a2631; border:1px solid rgba(255,255,255,.08); overflow:hidden;
  transition:transform .35s ease, border-color .35s ease, background .35s ease;
}
.capability-card:hover { transform:translateY(-7px); border-color:rgba(198,162,90,.5); background:#0c2c38; }
.card-top { display:flex; justify-content:space-between; color:rgba(255,255,255,.28); font:12px Georgia,serif; }
.card-arrow { color:var(--gold); font-size:18px; }
.capability-icon { height:112px; display:flex; align-items:center; margin-top:20px; }
.capability-icon span { position:relative; display:block; width:72px; height:72px; border:1px solid rgba(128,169,154,.5); transform:rotate(45deg); }
.capability-icon span::before, .capability-icon span::after { content:""; position:absolute; inset:10px; border:1px solid rgba(198,162,90,.45); }
.capability-icon span::after { inset:22px; background:var(--gold); border:0; }
.icon-02 span { border-radius:50%; transform:none; }
.icon-02 span::before { border-radius:50%; inset:13px; }
.icon-02 span::after { border-radius:50%; inset:28px; background:var(--green); }
.icon-03 span { transform:none; width:76px; height:62px; border-radius:50% 50% 45% 45%; }
.icon-03 span::before { inset:9px 17px; border-radius:50%; }
.icon-03 span::after { inset:25px 33px; border-radius:50%; }
.capability-card h3 { margin:32px 0 14px; font:500 25px "Songti SC",serif; }
.capability-card > p { min-height:78px; margin:0; color:rgba(255,255,255,.48); font-size:14px; line-height:1.85; }
.tags { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.tags span { padding:7px 10px; border:1px solid rgba(255,255,255,.11); color:rgba(255,255,255,.48); font-size:10px; letter-spacing:.05em; }

.journey { background:var(--paper); }
.journey-head { display:flex; justify-content:space-between; align-items:end; margin:52px 0 70px; gap:40px; }
.journey-head p { max-width:430px; margin:0; color:var(--muted); font-size:14px; line-height:1.9; }
.timeline { border-top:1px solid #cfd2ce; }
.timeline-item { display:grid; grid-template-columns:70px 90px 270px 1fr; gap:25px; align-items:start; padding:34px 0; min-height:160px; border-bottom:1px solid #dfe1dd; }
.timeline-marker { position:relative; height:100%; display:grid; align-items:center; }
.timeline-marker::before { content:""; position:absolute; left:21px; top:0; bottom:0; width:1px; background:#d1d4cf; }
.timeline-marker span { position:relative; z-index:1; width:43px; height:43px; display:grid; place-items:center; background:var(--paper); border:1px solid #a9b1ad; border-radius:50%; font:12px Georgia,serif; }
.timeline-status { padding-top:8px; color:#957c4e; font-size:11px; letter-spacing:.14em; }
.timeline-company h3 { margin:0 0 7px; font:500 25px "Songti SC",serif; }
.timeline-company span { color:#8a9496; font-size:11px; }
.timeline-body { max-width:700px; }
.timeline-body p { margin:0 0 12px; color:#617075; font-size:14px; line-height:1.9; }
.timeline-body p:last-child { margin-bottom:0; }
.disclosure { margin:24px 0 0; color:#98a09e; font-size:11px; text-align:right; }

.proof { color:#fff; background:#0b2834; }
.proof-grid { display:grid; grid-template-columns:.8fr 1.2fr; gap:8vw; }
.proof-lead h2 { margin:24px 0 0; max-width:420px; font:500 clamp(38px,4vw,62px)/1.35 "Songti SC",serif; }
.proof-metrics { display:grid; grid-template-columns:repeat(2,1fr); border-top:1px solid rgba(255,255,255,.15); border-left:1px solid rgba(255,255,255,.15); }
.proof-metrics > div { min-height:175px; padding:28px; border-right:1px solid rgba(255,255,255,.15); border-bottom:1px solid rgba(255,255,255,.15); }
.proof-metrics strong { color:var(--gold); font:500 42px/1 Georgia,serif; }
.proof-metrics strong span { margin-left:5px; font:500 14px/1 "Songti SC",serif; }
.proof-metrics p { margin:20px 0 0; color:rgba(255,255,255,.48); font-size:12px; line-height:1.7; }
.education { display:flex; align-items:center; gap:42px; margin-top:70px; padding-top:28px; border-top:1px solid rgba(255,255,255,.13); }
.education > span { color:var(--gold); font-size:11px; letter-spacing:.18em; }
.education p { margin:0; color:rgba(255,255,255,.5); font-size:13px; }
.education strong { color:rgba(255,255,255,.86); font-weight:500; }

.contact {
  display:flex; justify-content:space-between; align-items:center; gap:50px;
  color:#fff; background:
    radial-gradient(circle at 75% 50%, rgba(45,113,109,.34), transparent 24%),
    linear-gradient(120deg,#06191f,#092b33);
}
.contact h2 { margin:28px 0 22px; }
.contact p { margin:0; color:rgba(255,255,255,.5); font-size:14px; letter-spacing:.04em; }
.contact-circle {
  flex:0 0 auto; width:190px; height:190px; border-radius:50%;
  border:1px solid rgba(198,162,90,.6); display:grid; place-items:center;
  position:relative; color:var(--gold); transition:background .3s ease,color .3s ease,transform .3s ease;
}
.contact-circle span { font:500 18px "Songti SC",serif; }
.contact-circle small { position:absolute; bottom:48px; font-size:11px; letter-spacing:.03em; color:rgba(255,255,255,.56); }
.contact-circle b { position:absolute; right:34px; top:42px; font-weight:400; }
.contact-circle:hover { background:var(--gold); color:var(--ink); transform:scale(1.04); }
.contact-circle:hover small { color:rgba(7,29,38,.72); }

footer {
  padding:35px max(7vw,48px); display:flex; align-items:center; justify-content:space-between; gap:30px;
  background:#041218; color:rgba(255,255,255,.36); font-size:10px; letter-spacing:.12em;
}
.footer-brand .brand-mark { width:34px; height:34px; font-size:8px; }
.footer-brand .brand-name { color:rgba(255,255,255,.75); font-size:16px; }
.footer-meta { display:flex; align-items:center; gap:18px; }
.footer-meta a { color:rgba(255,255,255,.48); transition:color .25s ease; }
.footer-meta a:hover { color:var(--gold); }

@media (max-width: 900px) {
  .nav { width:calc(100% - 36px); height:78px; }
  .nav-links { display:none; }
  .hero { min-height:820px; padding:155px 24px 45px; }
  .hero-orbit { width:450px; height:450px; right:-230px; top:255px; opacity:.7; }
  .hero-portrait { right:24px; top:235px; width:230px; height:330px; opacity:.35; }
  .hero h1 { font-size:clamp(46px,12vw,68px); }
  .hero-lead { font-size:15px; }
  .hero-proof { left:24px; right:24px; bottom:40px; gap:18px; justify-content:space-between; }
  .hero-proof strong { font-size:24px; }
  .hero-proof i { display:none; }
  .section { padding:85px 24px; }
  .intro-grid { grid-template-columns:1fr; gap:45px; }
  .capability-grid { grid-template-columns:1fr; }
  .capability-card { min-height:420px; }
  .journey-head, .section-head { align-items:flex-start; flex-direction:column; }
  .timeline-item { grid-template-columns:55px 65px 1fr; padding:25px 0; }
  .timeline-body { grid-column:3; }
  .timeline-marker { grid-row:1 / span 2; }
  .proof-grid { grid-template-columns:1fr; }
  .education { align-items:flex-start; flex-direction:column; gap:14px; }
  .contact { align-items:flex-start; flex-direction:column; }
  .contact-circle { align-self:flex-end; width:150px; height:150px; }
  footer { flex-wrap:wrap; }
  .footer-meta { width:100%; justify-content:space-between; }
}

@media (max-width: 520px) {
  .nav-contact { padding:10px 12px; font-size:11px; }
  .brand-name { font-size:17px; }
  .hero { min-height:780px; }
  .hero-portrait { right:-60px; top:265px; width:210px; height:315px; opacity:.28; }
  .desktop-only { display:none; }
  .hero-actions { align-items:flex-start; flex-direction:column; gap:24px; }
  .hero-proof { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
  .hero-proof div > span { font-size:9px; }
  .hero-proof div:last-child strong { font-size:18px; }
  .timeline-item { grid-template-columns:48px 1fr; }
  .timeline-status { display:none; }
  .timeline-company, .timeline-body { grid-column:2; }
  .proof-metrics { grid-template-columns:1fr; }
}

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