:root {
  --ink: #142125;
  --ink-soft: #435257;
  --deep: #101a1d;
  --deep-2: #18272b;
  --paper: #f1eee8;
  --paper-2: #e7e3da;
  --white: #fbfaf7;
  --mint: #9ccbbd;
  --coral: #ec8c6f;
  --line: rgba(20, 33, 37, 0.16);
  --line-light: rgba(251, 250, 247, 0.22);
  --container: 1220px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(calc(100% - 64px), var(--container)); margin: 0 auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, color 220ms ease;
}
.site-header.is-scrolled {
  background: rgba(16, 26, 29, 0.94);
  border-color: rgba(251, 250, 247, 0.12);
  backdrop-filter: blur(16px);
}
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid currentColor;
  color: var(--mint);
  font-size: 11px;
  letter-spacing: .05em;
  line-height: 1;
}
.brand-mark span + span { margin-left: -1px; }
.brand-copy { display: grid; gap: 0; line-height: 1.15; }
.brand-copy strong { font-size: 16px; font-weight: 700; letter-spacing: .08em; }
.brand-copy small { font-size: 8px; letter-spacing: .21em; opacity: .64; }
.desktop-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.desktop-nav a, .footer-links a { font-size: 13px; letter-spacing: .04em; opacity: .76; transition: opacity 180ms ease, color 180ms ease; }
.desktop-nav a:hover, .footer-links a:hover { opacity: 1; color: var(--mint); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 0;
  color: inherit;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  letter-spacing: .12em;
}
.language-current { color: var(--mint); }
.language-next { opacity: .54; }
.language-rule { width: 1px; height: 12px; background: currentColor; opacity: .4; }
.header-contact { padding: 10px 18px; border: 1px solid rgba(251, 250, 247, .38); font-size: 12px; letter-spacing: .08em; transition: border-color 180ms ease, background 180ms ease; }
.header-contact:hover { background: var(--mint); border-color: var(--mint); color: var(--deep); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid rgba(251, 250, 247, .35); background: transparent; color: inherit; cursor: pointer; }
.menu-toggle span { display: block; width: 19px; height: 1px; margin: 5px auto; background: currentColor; transition: transform 180ms ease; }
.mobile-menu { display: none; }

.hero { position: relative; min-height: 760px; height: min(100vh, 900px); display: flex; align-items: center; overflow: hidden; color: var(--white); background: var(--deep); }
.hero-media, .hero-shade { position: absolute; inset: 0; }
.hero-media { background: url("/assets/hero-campus.png") center / cover no-repeat; transform: scale(1.02); }
.hero-shade { background: linear-gradient(90deg, rgba(8, 18, 22, .91) 0%, rgba(8, 18, 22, .67) 36%, rgba(8, 18, 22, .18) 76%, rgba(8, 18, 22, .15) 100%); }
.hero-content { position: relative; z-index: 1; padding-top: 72px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 28px; color: var(--ink-soft); font-size: 10px; font-weight: 700; letter-spacing: .17em; line-height: 1.3; }
.eyebrow.light { color: rgba(251, 250, 247, .78); }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px rgba(236, 140, 111, .15); }
.hero h1 { max-width: 810px; margin: 0; font-size: clamp(52px, 6.2vw, 92px); font-weight: 400; letter-spacing: -.04em; line-height: 1.07; }
.hero h1 em, h2 em { color: var(--mint); font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.03em; }
.hero-intro { max-width: 510px; margin: 30px 0 0; color: rgba(251, 250, 247, .76); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.button { display: inline-flex; align-items: center; gap: 32px; min-height: 52px; padding: 0 20px; font-size: 12px; letter-spacing: .07em; transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--coral); color: var(--deep); }
.button-primary:hover { background: #f3a184; }
.button-quiet { border: 1px solid rgba(251, 250, 247, .38); color: var(--white); }
.button-quiet:hover { border-color: var(--mint); color: var(--mint); }
.hero-meta { display: flex; align-items: center; gap: 13px; margin-top: 92px; color: rgba(251, 250, 247, .58); font-size: 11px; letter-spacing: .12em; }
.meta-divider { width: 26px; height: 1px; background: currentColor; opacity: .45; }
.hero-scroll { position: absolute; z-index: 1; right: 32px; bottom: 34px; display: flex; align-items: center; gap: 13px; color: rgba(251, 250, 247, .62); font-size: 10px; letter-spacing: .16em; writing-mode: vertical-rl; }
.hero-scroll-line { width: 1px; height: 46px; background: var(--mint); }

.signal-strip { background: var(--coral); color: var(--deep); }
.signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.signal-item { display: flex; align-items: center; gap: 16px; min-height: 86px; padding: 0 28px; border-right: 1px solid rgba(20, 33, 37, .2); font-size: 12px; letter-spacing: .08em; }
.signal-item:first-child { padding-left: 0; }
.signal-item:last-child { border-right: 0; }
.signal-number { font-size: 10px; font-weight: 700; letter-spacing: .12em; opacity: .52; }

.section { padding: 136px 0; }
.about-section { background: var(--paper); }
.section-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .76fr); gap: 120px; }
.section-heading h2, .global-copy h2 { max-width: 650px; margin: 0; font-size: clamp(40px, 5vw, 68px); font-weight: 400; letter-spacing: -.045em; line-height: 1.12; }
.section-copy { padding-top: 55px; }
.section-copy p, .global-copy > p { max-width: 505px; margin: 0 0 22px; color: var(--ink-soft); font-size: 15px; line-height: 1.95; }
.section-copy p.lead { color: var(--ink); font-size: 23px; line-height: 1.55; }
.text-link { display: inline-flex; align-items: center; gap: 20px; margin-top: 20px; padding-bottom: 7px; border-bottom: 1px solid var(--ink); font-size: 12px; letter-spacing: .07em; transition: color 180ms ease, border-color 180ms ease; }
.text-link:hover { color: #5e9b8d; border-color: #5e9b8d; }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 120px; border-top: 1px solid var(--line); }
.fact-card { display: grid; gap: 5px; padding: 25px 28px 0 0; border-right: 1px solid var(--line); }
.fact-card + .fact-card { padding-left: 28px; }
.fact-card:last-child { border-right: 0; }
.fact-index { color: var(--coral); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.fact-card strong { font-size: 16px; font-weight: 500; letter-spacing: .03em; }
.fact-card > span:last-child { color: var(--ink-soft); font-size: 12px; }

.focus-section { background: var(--deep); color: var(--white); }
.section-topline { display: flex; align-items: center; justify-content: space-between; }
.section-count { font-family: var(--serif); font-size: 14px; font-style: italic; opacity: .65; }
.focus-intro { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin: 65px 0 72px; }
.focus-intro h2 { margin: 0; font-size: clamp(48px, 6vw, 82px); font-weight: 400; letter-spacing: -.045em; line-height: 1.05; }
.focus-intro p { max-width: 300px; margin: 0 0 4px; color: rgba(251, 250, 247, .62); font-size: 14px; line-height: 1.9; }
.focus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(251, 250, 247, .2); }
.focus-card { min-height: 340px; padding: 28px 28px 24px; background: var(--deep); display: flex; flex-direction: column; transition: background 220ms ease, transform 220ms ease; }
.focus-card:hover { background: var(--deep-2); transform: translateY(-6px); }
.focus-card-top { display: flex; align-items: center; justify-content: space-between; color: var(--mint); }
.focus-number { font-size: 11px; letter-spacing: .1em; }
.focus-arrow { font-size: 22px; font-weight: 300; transition: transform 220ms ease; }
.focus-card:hover .focus-arrow { transform: translate(4px, -4px); }
.focus-card h3 { margin: 74px 0 16px; font-size: 29px; font-weight: 400; letter-spacing: -.03em; line-height: 1.12; }
.focus-card p { max-width: 280px; margin: 0; color: rgba(251, 250, 247, .62); font-size: 13px; line-height: 1.8; }
.focus-card-line { width: 44px; height: 2px; margin-top: auto; background: var(--coral); }

.global-section { background: var(--paper-2); }
.global-layout { display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 110px; }
.global-copy h2 { margin-bottom: 35px; }
.global-tags { display: flex; gap: 8px; margin-top: 35px; }
.global-tags span { padding: 7px 13px; border: 1px solid var(--line); color: var(--ink-soft); font-size: 10px; letter-spacing: .1em; }
.global-visual { position: relative; min-height: 450px; overflow: hidden; background: #d4d8d1; }
.global-grid-lines { position: absolute; inset: 0; opacity: .45; background-image: linear-gradient(rgba(20, 33, 37, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 33, 37, .12) 1px, transparent 1px); background-size: 52px 52px; }
.global-orbit { position: absolute; border: 1px solid rgba(20, 33, 37, .22); border-radius: 50%; transform: rotate(-24deg); }
.global-orbit-one { width: 560px; height: 215px; left: 3%; top: 28%; }
.global-orbit-two { width: 620px; height: 295px; left: -2%; top: 18%; transform: rotate(26deg); border-color: rgba(74, 146, 130, .6); }
.global-node { position: absolute; display: grid; place-items: center; width: 114px; height: 114px; border-radius: 50%; border: 1px solid var(--deep); background: var(--deep); color: var(--white); text-align: center; }
.global-node span { margin-bottom: -9px; color: var(--mint); font-family: var(--serif); font-size: 28px; font-style: italic; }
.global-node small { font-size: 8px; letter-spacing: .16em; }
.global-node-main { left: 27%; top: 39%; box-shadow: 0 0 0 13px rgba(20, 33, 37, .07); }
.global-node-world { right: 11%; top: 18%; width: 82px; height: 82px; background: var(--coral); color: var(--deep); border: 0; }
.global-node-world span { color: var(--deep); font-size: 22px; }
.global-coordinate { position: absolute; right: 24px; bottom: 20px; color: rgba(20, 33, 37, .54); font-size: 9px; letter-spacing: .15em; line-height: 1.7; text-align: right; }

.contact-section { padding: 126px 0 138px; background: var(--mint); color: var(--deep); }
.contact-layout { display: grid; grid-template-columns: 1fr .84fr; gap: 120px; }
.contact-copy h2 { margin: 0 0 32px; font-size: clamp(48px, 6vw, 84px); font-weight: 400; letter-spacing: -.05em; line-height: 1.05; }
.contact-copy h2 em { color: var(--deep); }
.contact-copy p { max-width: 480px; margin: 0; color: rgba(20, 33, 37, .7); font-size: 15px; line-height: 1.9; }
.contact-action { align-self: end; padding-bottom: 7px; }
.mail-link { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 0 18px; border-bottom: 1px solid rgba(20, 33, 37, .42); font-family: var(--serif); font-size: clamp(22px, 3vw, 34px); font-style: italic; transition: color 180ms ease, border-color 180ms ease; }
.mail-link:hover { color: var(--coral); border-color: var(--coral); }
.mail-link-arrow { font-family: var(--sans); font-size: 24px; font-style: normal; }
.contact-note { display: block; margin-top: 14px; color: rgba(20, 33, 37, .62); font-size: 11px; letter-spacing: .08em; }

.site-footer { background: var(--deep); color: var(--white); }
.footer-main { display: grid; grid-template-columns: .9fr .8fr 1.3fr; gap: 60px; padding: 62px 0 55px; }
.footer-links { display: grid; align-content: start; gap: 10px; }
.footer-legal { color: rgba(251, 250, 247, .58); font-size: 11px; line-height: 1.9; }
.footer-legal p { margin: 0; }
.filing-links { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 10px !important; }
.filing-links a { color: rgba(251, 250, 247, .72); text-decoration: underline; text-underline-offset: 4px; }
.filing-links a:hover { color: var(--mint); }
.public-security-record { display: inline-flex; align-items: center; gap: 6px; }
.public-security-record img { width: 20px; height: 22px; object-fit: contain; flex: 0 0 auto; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 0 22px; border-top: 1px solid rgba(251, 250, 247, .14); color: rgba(251, 250, 247, .42); font-size: 10px; letter-spacing: .07em; }

.reveal { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 180ms; }

@media (max-width: 900px) {
  .container { width: min(calc(100% - 40px), var(--container)); }
  .desktop-nav, .header-contact { display: none; }
  .menu-toggle { display: block; }
  .mobile-menu { display: grid; grid-template-rows: 0fr; overflow: hidden; padding: 0 20px; background: var(--deep); transition: grid-template-rows 220ms ease, padding 220ms ease; }
  .mobile-menu::before { content: ""; min-height: 0; }
  .mobile-menu a { display: block; min-height: 0; color: var(--white); font-size: 14px; opacity: 0; transition: opacity 180ms ease; }
  .mobile-menu.is-open { grid-template-rows: 1fr; padding: 4px 20px 22px; }
  .mobile-menu.is-open a { min-height: 42px; opacity: .78; }
  .mobile-menu.is-open a:hover { color: var(--mint); opacity: 1; }
  .section-grid, .global-layout, .contact-layout { grid-template-columns: 1fr; gap: 50px; }
  .section-copy { padding-top: 0; }
  .global-layout { gap: 54px; }
  .contact-layout { gap: 56px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-legal { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .header-inner { min-height: 74px; }
  .brand-copy strong { font-size: 14px; }
  .hero { min-height: 700px; height: 92vh; }
  .hero-shade { background: linear-gradient(90deg, rgba(8, 18, 22, .94) 0%, rgba(8, 18, 22, .68) 72%, rgba(8, 18, 22, .42) 100%); }
  .hero-content { padding-top: 55px; }
  .hero h1 { font-size: clamp(44px, 13vw, 68px); }
  .hero-intro { max-width: 330px; font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; max-width: 230px; }
  .button { justify-content: space-between; }
  .hero-meta { margin-top: 56px; }
  .hero-scroll { right: 16px; bottom: 25px; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal-item, .signal-item:first-child { min-height: 61px; padding: 0; border-right: 0; border-bottom: 1px solid rgba(20, 33, 37, .2); }
  .signal-item:last-child { border-bottom: 0; }
  .section { padding: 88px 0; }
  .section-heading h2, .global-copy h2 { font-size: 44px; }
  .section-copy p.lead { font-size: 21px; }
  .fact-row { grid-template-columns: 1fr; margin-top: 76px; }
  .fact-card, .fact-card + .fact-card { min-height: 110px; padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .fact-card:last-child { border-bottom: 0; }
  .focus-intro { display: block; margin: 46px 0 46px; }
  .focus-intro h2 { font-size: 54px; }
  .focus-intro p { margin-top: 26px; }
  .focus-grid { grid-template-columns: 1fr; }
  .focus-card { min-height: 285px; }
  .focus-card h3 { margin-top: 54px; }
  .global-visual { min-height: 325px; }
  .global-orbit-one { width: 400px; height: 165px; left: -4%; top: 29%; }
  .global-orbit-two { width: 460px; height: 215px; left: -8%; top: 17%; }
  .global-node-main { left: 24%; top: 37%; width: 92px; height: 92px; }
  .global-node-world { right: 8%; top: 13%; width: 68px; height: 68px; }
  .global-coordinate { right: 15px; bottom: 12px; }
  .contact-section { padding: 88px 0 95px; }
  .contact-copy h2 { font-size: 56px; }
  .mail-link { font-size: 22px; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; padding: 48px 0 40px; }
  .footer-legal { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 6px; }
  .filing-links { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}