:root {
  --navy: #071a2f;
  --navy-2: #0c2945;
  --ink: #10243a;
  --muted: #607084;
  --line: #dce5ec;
  --soft: #f3f7f9;
  --white: #ffffff;
  --mint: #58e4c1;
  --mint-deep: #16b89e;
  --sky: #a3d9f5;
  --shadow: 0 22px 70px rgba(8, 30, 52, .12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: fixed; z-index: 20; inset: 0 0 auto; color: var(--white); background: rgba(7, 26, 47, .82); border-bottom: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(18px); }
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid rgba(88,228,193,.75); border-radius: 12px; color: var(--mint); font-size: 11px; font-weight: 800; letter-spacing: .07em; }
.brand-copy { display: grid; gap: 0; line-height: 1.15; }
.brand-copy strong { font-size: 16px; letter-spacing: .05em; }
.brand-copy small { color: rgba(255,255,255,.62); font-size: 10px; letter-spacing: .08em; margin-top: 4px; }
.site-nav { display: flex; align-items: center; gap: 30px; color: rgba(255,255,255,.76); font-size: 13px; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover { color: var(--mint); }
.site-nav .nav-cta { padding: 10px 17px; color: var(--navy); background: var(--mint); border-radius: 999px; font-weight: 700; }
.menu-toggle { display: none; border: 0; padding: 7px; color: var(--white); background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px 0; background: currentColor; }

.hero { position: relative; min-height: 810px; overflow: hidden; color: var(--white); background: radial-gradient(circle at 76% 28%, rgba(37, 113, 153, .33), transparent 30%), linear-gradient(135deg, var(--navy), #0b2944 58%, #0e3b57); }
.hero::before { position: absolute; inset: 0; opacity: .18; content: ""; background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, black, transparent 82%); }
.hero-glow { position: absolute; width: 480px; height: 480px; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero-glow-a { top: 120px; right: -180px; background: rgba(88,228,193,.1); }
.hero-glow-b { bottom: -320px; left: -160px; background: rgba(163,217,245,.08); }
.hero-grid { position: relative; z-index: 1; min-height: 810px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px; padding-top: 82px; }
.hero-copy { padding: 56px 0 75px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 22px; color: var(--mint); font-size: 11px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow.dark { color: var(--mint-deep); }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 5px rgba(88,228,193,.13); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 720px; margin-bottom: 25px; font-size: clamp(42px, 5.4vw, 72px); line-height: 1.15; letter-spacing: -.055em; font-weight: 760; }
h1 em, h2 em { color: var(--mint); font-style: normal; }
.hero-lead { max-width: 580px; margin-bottom: 30px; color: rgba(255,255,255,.72); font-size: 16px; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 0 21px; border: 1px solid transparent; border-radius: 999px; font-size: 13px; font-weight: 750; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--navy); background: var(--mint); box-shadow: 0 12px 30px rgba(88,228,193,.16); }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.04); }
.button-ghost:hover { border-color: var(--mint); background: rgba(88,228,193,.08); }
.hero-note { display: flex; align-items: center; gap: 9px; margin-top: 30px; color: rgba(255,255,255,.5); font-size: 11px; }
.signal { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(88,228,193,.12); }

.hero-visual { position: relative; min-height: 530px; }
.visual-grid { position: absolute; inset: 14% 0 0 8%; z-index: 0; opacity: .33; background-image: linear-gradient(rgba(163,217,245,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(163,217,245,.15) 1px, transparent 1px); background-size: 38px 38px; transform: perspective(500px) rotateX(52deg) rotateZ(-19deg); mask-image: radial-gradient(ellipse, black 30%, transparent 70%); }
.orbit { position: absolute; z-index: 0; border: 1px solid rgba(88,228,193,.2); border-radius: 50%; transform: rotate(-25deg); }
.orbit-one { width: 530px; height: 230px; top: 125px; left: 2px; }
.orbit-two { width: 430px; height: 175px; top: 160px; left: 48px; border-color: rgba(163,217,245,.22); }
.visual-card { position: absolute; z-index: 2; }
.visual-card-main { top: 155px; left: 19%; width: 302px; min-height: 280px; padding: 38px 34px; border: 1px solid rgba(255,255,255,.22); border-radius: 28px; background: linear-gradient(145deg, rgba(255,255,255,.15), rgba(255,255,255,.04)); box-shadow: 0 30px 80px rgba(0,0,0,.2), inset 0 1px 0 rgba(255,255,255,.16); backdrop-filter: blur(16px); transform: rotate(-5deg); }
.card-kicker { display: block; margin-bottom: 28px; color: var(--mint); font-size: 10px; letter-spacing: .14em; }
.visual-card-main strong { display: block; font-size: 45px; line-height: 1.13; letter-spacing: -.06em; }
.visual-card-main strong span { color: var(--mint); }
.visual-card-main p { margin: 18px 0 27px; color: rgba(255,255,255,.6); font-size: 13px; }
.card-line { display: flex; gap: 5px; }
.card-line span { height: 3px; border-radius: 3px; background: rgba(255,255,255,.24); }
.card-line span:nth-child(1) { width: 30%; background: var(--mint); }.card-line span:nth-child(2) { width: 18%; }.card-line span:nth-child(3) { width: 10%; }.card-line span:nth-child(4) { width: 28%; }
.floating-card { position: absolute; z-index: 3; display: flex; align-items: center; gap: 10px; min-width: 178px; padding: 13px 15px; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; background: rgba(11, 40, 66, .76); box-shadow: 0 18px 50px rgba(0,0,0,.18); backdrop-filter: blur(12px); }
.floating-card b, .floating-card small { display: block; }.floating-card b { color: rgba(255,255,255,.9); font-size: 11px; }.floating-card small { margin-top: 2px; color: rgba(255,255,255,.45); font-size: 9px; }
.floating-top { top: 115px; right: -8px; }.floating-bottom { right: 3px; bottom: 96px; }
.mini-icon { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; color: var(--sky); background: rgba(163,217,245,.13); font-size: 18px; }.mini-icon.mint { color: var(--mint); background: rgba(88,228,193,.13); }
.scroll-cue { position: absolute; bottom: 25px; left: 50%; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.45); font-size: 10px; letter-spacing: .16em; transform: translateX(-50%); text-transform: uppercase; }.scroll-cue span { display: block; width: 34px; height: 1px; background: var(--mint); }

.section { padding: 125px 0; }.section-light { background: var(--white); }.section-soft { background: var(--soft); }.section-navy { overflow: hidden; color: var(--white); background: var(--navy); }
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }.section-intro h2, .section-heading h2 { margin-bottom: 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.2; letter-spacing: -.055em; }.section-intro h2 span, .section-heading h2 span { color: var(--mint-deep); }
.about-copy { max-width: 630px; color: var(--muted); font-size: 15px; line-height: 2; }.about-copy p { margin-bottom: 22px; }.about-copy .lead-paragraph { color: var(--ink); font-size: 19px; line-height: 1.9; letter-spacing: -.02em; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 38px; padding-top: 28px; border-top: 1px solid var(--line); }.about-stats div { display: flex; align-items: center; gap: 12px; }.about-stats strong { color: var(--mint-deep); font-size: 27px; letter-spacing: -.04em; }.about-stats span { color: var(--muted); font-size: 10px; line-height: 1.5; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 50px; margin-bottom: 65px; }.section-heading h2 { color: var(--white); }.heading-aside { max-width: 340px; margin-bottom: 4px; color: rgba(255,255,255,.55); font-size: 13px; line-height: 1.9; }.dark-aside { color: var(--muted); }.section-heading-centered { display: block; max-width: 650px; margin-right: auto; margin-left: auto; text-align: center; }.section-heading-centered .eyebrow { justify-content: center; }.section-heading-centered h2 { margin-bottom: 14px; }.heading-sub { margin: 0 auto; color: var(--muted); font-size: 14px; }
.system-layout { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 80px; }.system-core { position: relative; display: grid; place-items: center; min-height: 370px; }.core-ring { position: absolute; width: 270px; height: 270px; border: 1px solid rgba(88,228,193,.3); border-radius: 50%; box-shadow: 0 0 0 36px rgba(88,228,193,.03), 0 0 0 72px rgba(88,228,193,.025); }.core-ring::before, .core-ring::after { position: absolute; content: ""; border-radius: 50%; }.core-ring::before { inset: 34px; border: 1px dashed rgba(163,217,245,.35); }.core-ring::after { top: 50%; left: -4px; width: 8px; height: 8px; background: var(--mint); box-shadow: 0 0 0 7px rgba(88,228,193,.15); }.core-content { position: relative; display: grid; place-items: center; line-height: 1; }.core-content span { color: var(--mint); font-size: 18px; font-weight: 750; letter-spacing: .16em; }.core-content strong { margin-top: 9px; color: var(--white); font-size: 63px; letter-spacing: -.08em; }.core-content small { margin-top: 20px; color: rgba(255,255,255,.5); font-size: 11px; letter-spacing: .12em; }
.pillar-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.15); }.pillar { position: relative; min-height: 200px; padding: 27px 28px; background: var(--navy); }.pillar:hover { background: var(--navy-2); }.pillar-no { position: absolute; top: 24px; right: 26px; color: rgba(255,255,255,.28); font-size: 11px; }.pillar-icon { display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 21px; border: 1px solid rgba(88,228,193,.34); border-radius: 12px; color: var(--mint); font-size: 20px; }.pillar h3 { margin-bottom: 8px; font-size: 21px; }.pillar p { max-width: 220px; margin: 0; color: rgba(255,255,255,.52); font-size: 12px; line-height: 1.8; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }.team-card { position: relative; min-height: 340px; padding: 27px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }.team-card:hover { border-color: rgba(22,184,158,.45); box-shadow: var(--shadow); transform: translateY(-6px); }.team-card-accent { color: var(--white); border-color: transparent; background: linear-gradient(145deg, #0d3b59, #0b253e); }.team-index { position: absolute; top: 25px; right: 25px; color: var(--mint-deep); font-size: 11px; letter-spacing: .1em; }.team-card-accent .team-index { color: var(--mint); }.team-symbol { display: grid; place-items: center; width: 49px; height: 49px; margin-bottom: 48px; border-radius: 15px; color: var(--mint-deep); background: #e4f8f4; font-size: 26px; }.team-card-accent .team-symbol { color: var(--mint); background: rgba(88,228,193,.12); }.team-card h3 { min-height: 58px; margin-bottom: 15px; font-size: 21px; line-height: 1.35; letter-spacing: -.04em; }.team-card p { min-height: 66px; margin-bottom: 22px; color: var(--muted); font-size: 12px; line-height: 1.85; }.team-card-accent p { color: rgba(255,255,255,.56); }.team-card a { display: inline-flex; align-items: center; gap: 8px; color: var(--mint-deep); font-size: 11px; font-weight: 800; }.team-card-accent a { color: var(--mint); }

.path-section { padding-bottom: 135px; }.path-line { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }.path-line::before { position: absolute; top: 18px; right: 8%; left: 3%; height: 1px; content: ""; background: linear-gradient(90deg, var(--mint-deep), var(--line)); }.path-step { position: relative; z-index: 1; }.path-no { display: block; margin-bottom: 20px; color: var(--mint-deep); font-size: 11px; letter-spacing: .15em; }.path-dot { width: 13px; height: 13px; margin-bottom: 35px; border: 3px solid var(--white); border-radius: 50%; background: var(--mint-deep); box-shadow: 0 0 0 1px var(--mint-deep); }.path-step h3 { margin-bottom: 10px; font-size: 20px; }.path-step p { max-width: 220px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.85; }
.contact-section { padding-top: 0; background: var(--white); }.contact-card { position: relative; display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: 50px; min-height: 360px; padding: 62px 75px; overflow: hidden; color: var(--white); border-radius: 28px; background: linear-gradient(120deg, #0a2b47, #0e4b61); box-shadow: var(--shadow); }.contact-card::after { position: absolute; right: -100px; bottom: -180px; width: 430px; height: 430px; border: 1px solid rgba(88,228,193,.22); border-radius: 50%; box-shadow: 0 0 0 34px rgba(88,228,193,.04), 0 0 0 68px rgba(88,228,193,.025); content: ""; }.contact-card h2 { margin-bottom: 17px; font-size: clamp(31px, 4vw, 50px); line-height: 1.18; letter-spacing: -.055em; }.contact-copy { max-width: 510px; margin: 0; color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.9; }.address-block { position: relative; z-index: 1; display: flex; align-items: flex-start; gap: 17px; padding: 24px; border: 1px solid rgba(255,255,255,.16); border-radius: 17px; background: rgba(255,255,255,.07); }.address-pin { color: var(--mint); font-size: 27px; line-height: 1; }.address-block small, .address-block strong { display: block; }.address-block small { margin-bottom: 8px; color: rgba(255,255,255,.5); font-size: 10px; }.address-block strong { color: var(--white); font-size: 14px; line-height: 1.8; }
.site-footer { color: rgba(255,255,255,.7); background: var(--navy); }.footer-inner { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; min-height: 130px; }.footer-inner p { margin: 0; color: rgba(255,255,255,.42); font-size: 11px; }.copyright { color: rgba(255,255,255,.38); font-size: 10px; text-align: right; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }.reveal.is-visible { opacity: 1; transform: none; }.reveal-delay { transition-delay: .1s; }.reveal-delay-2 { transition-delay: .18s; }

@media (max-width: 900px) {
  .site-nav { gap: 18px; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 125px; }.hero { min-height: auto; }.hero-grid { min-height: auto; }.hero-copy { padding-bottom: 0; }.hero-visual { min-height: 470px; margin-top: -12px; }.visual-card-main { left: 24%; }.floating-top { right: 5%; }.floating-bottom { right: 8%; }
  .about-grid, .system-layout, .contact-card { grid-template-columns: 1fr; gap: 45px; }.system-core { min-height: 300px; }.contact-card { padding: 55px 45px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }.team-card { min-height: 300px; }.path-line { gap: 20px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }.copyright { text-align: left; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 32px, 520px); }.nav-wrap { min-height: 68px; }.menu-toggle { display: block; }.site-nav { position: absolute; top: 68px; right: 16px; left: 16px; display: grid; gap: 0; padding: 8px; border: 1px solid rgba(255,255,255,.12); border-radius: 16px; background: rgba(7,26,47,.97); box-shadow: 0 20px 50px rgba(0,0,0,.25); opacity: 0; pointer-events: none; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease; }.site-nav.is-open { opacity: 1; pointer-events: auto; transform: none; }.site-nav a { padding: 12px 14px; }.site-nav .nav-cta { margin: 5px; text-align: center; }
  .hero-grid { padding-top: 105px; }.hero-copy { padding-top: 40px; }.hero-lead { font-size: 14px; line-height: 1.9; }.hero-note { align-items: flex-start; font-size: 10px; line-height: 1.5; }.hero-visual { min-height: 370px; margin-top: -8px; transform: scale(.86); transform-origin: top center; }.visual-card-main { top: 95px; left: 14%; }.floating-top { top: 47px; right: -4px; }.floating-bottom { right: -8px; bottom: 40px; }.scroll-cue { display: none; }
  .section { padding: 82px 0; }.about-grid { gap: 35px; }.about-copy .lead-paragraph { font-size: 17px; }.about-stats { gap: 7px; }.about-stats div { align-items: flex-start; gap: 6px; }.about-stats strong { font-size: 22px; }.about-stats span { font-size: 9px; }
  .section-heading { display: block; margin-bottom: 40px; }.heading-aside { margin-top: 20px; }.system-layout { gap: 18px; }.system-core { min-height: 260px; transform: scale(.82); }.pillar-grid { grid-template-columns: 1fr 1fr; }.pillar { min-height: 190px; padding: 22px 18px; }.pillar h3 { font-size: 18px; }.pillar p { font-size: 11px; }
  .section-heading-centered { display: block; }.team-grid { grid-template-columns: 1fr 1fr; gap: 9px; }.team-card { min-height: 310px; padding: 20px 17px; border-radius: 17px; }.team-symbol { width: 42px; height: 42px; margin-bottom: 35px; }.team-card h3 { min-height: 54px; font-size: 17px; }.team-card p { min-height: 90px; font-size: 11px; }.team-index { top: 19px; right: 17px; }
  .path-line { grid-template-columns: 1fr 1fr; gap: 35px 20px; }.path-line::before { top: 96px; right: 11%; left: 11%; height: calc(50% - 15px); width: 1px; background: linear-gradient(var(--mint-deep), var(--line)); }.path-dot { margin-bottom: 16px; }.path-step p { font-size: 11px; }
  .contact-card { gap: 32px; padding: 40px 25px; border-radius: 22px; }.contact-card h2 { font-size: 34px; }.contact-copy { font-size: 13px; }.address-block { padding: 19px; }.footer-inner { grid-template-columns: 1fr; gap: 15px; padding: 30px 0; }.copyright { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }.reveal { opacity: 1; transform: none; transition: none; }.button, .team-card { transition: none; }
}