:root {
  --navy: #071d49;
  --blue: #0b4ea2;
  --blue-2: #1668c7;
  --orange: #f26a21;
  --cream: #f7f3ea;
  --paper: #fffdf8;
  --ink: #10213e;
  --muted: #60708a;
  --line: rgba(7, 29, 73, 0.12);
  --shadow: 0 24px 70px rgba(7, 29, 73, 0.12);
  --radius: 28px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(242, 106, 33, 0.65); outline-offset: 4px; }

.skip-link {
  position: fixed; left: 16px; top: -100px; z-index: 1000;
  background: var(--orange); color: #fff; padding: 10px 16px; border-radius: 10px;
}
.skip-link:focus { top: 16px; }

.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.section { padding: 110px 0; position: relative; overflow: clip; }
.section.compact { padding: 76px 0; }
.section.tint { background: var(--cream); }
.section.dark { background: var(--navy); color: #fff; }
.eyebrow {
  margin: 0 0 14px; color: var(--orange); font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; font-size: 13px;
}
.section-title {
  max-width: 850px; margin: 0; font-size: clamp(34px, 5vw, 66px); line-height: 1.08;
  letter-spacing: -.045em; font-family: "Noto Serif SC", "Songti SC", serif;
}
.section-lead { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 18px; }
.dark .section-lead { color: rgba(255,255,255,.7); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 48px; }

.site-header {
  position: fixed; z-index: 100; inset: 0 0 auto; height: 76px;
  background: rgba(255,253,248,.9); border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px); transition: .25s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 8px 30px rgba(7,29,73,.06); }
.nav { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark {
  width: 42px; aspect-ratio: 1; border-radius: 13px; display: grid; place-items: center;
  color: #fff; font-family: Georgia, serif; font-weight: 900; letter-spacing: -.08em;
  background: linear-gradient(145deg, var(--blue), var(--navy)); box-shadow: inset -8px -8px 20px rgba(0,0,0,.16);
}
.brand-name { font-weight: 900; color: var(--navy); line-height: 1.1; }
.brand-name small { display: block; font-weight: 600; color: var(--muted); font-size: 10px; letter-spacing: .14em; margin-top: 4px; }
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a { padding: 9px 12px; border-radius: 999px; color: #334360; font-weight: 650; font-size: 14px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); background: rgba(11,78,162,.08); }
.nav-cta { padding: 10px 17px !important; background: var(--orange) !important; color: #fff !important; }
.menu-button { display: none; border: 0; background: transparent; width: 44px; height: 44px; border-radius: 12px; }
.menu-button span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px auto; transition: .2s; }

.hero {
  min-height: 92svh; padding: 150px 0 90px; display: grid; align-items: center;
  color: #fff; background:
    radial-gradient(circle at 86% 30%, rgba(242,106,33,.28), transparent 24%),
    radial-gradient(circle at 18% 82%, rgba(22,104,199,.55), transparent 34%),
    linear-gradient(135deg, #061638, #0b326b 58%, #071d49);
  overflow: hidden; position: relative;
}
.hero::before {
  content: ""; position: absolute; width: 600px; height: 600px; border: 1px solid rgba(255,255,255,.11);
  border-radius: 50%; right: -180px; top: -190px; box-shadow: 0 0 0 80px rgba(255,255,255,.025), 0 0 0 160px rgba(255,255,255,.015);
}
.hero-grid { display: grid; grid-template-columns: 1.14fr .86fr; gap: 64px; align-items: center; position: relative; }
.hero h1 { margin: 14px 0 24px; font-size: clamp(52px, 7.2vw, 94px); line-height: .98; letter-spacing: -.065em; font-family: "Noto Serif SC", "Songti SC", serif; }
.hero h1 span { color: #ff9b57; display: block; }
.hero-copy > p { font-size: clamp(18px, 2vw, 23px); color: rgba(255,255,255,.78); max-width: 680px; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button {
  display: inline-flex; justify-content: center; align-items: center; min-height: 52px; gap: 10px;
  border: 1px solid transparent; border-radius: 999px; padding: 13px 22px; font-weight: 800; cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(7,29,73,.18); }
.button.primary { background: var(--orange); color: #fff; }
.button.light { background: #fff; color: var(--navy); }
.button.ghost { border-color: rgba(255,255,255,.28); color: #fff; background: rgba(255,255,255,.06); }
.button.outline { border-color: var(--line); color: var(--blue); background: #fff; }
.hero-note { margin-top: 18px; font-size: 13px !important; color: rgba(255,255,255,.54) !important; }
.hero-visual { position: relative; min-height: 560px; }
.hero-card {
  position: absolute; overflow: hidden; border-radius: 30px; background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15); box-shadow: 0 35px 80px rgba(0,0,0,.3);
}
.hero-card.main { inset: 0 0 55px 35px; transform: rotate(2deg); }
.hero-card.main img { width: 100%; height: 100%; object-fit: cover; }
.hero-card.floating { left: 0; bottom: 0; padding: 20px 22px; backdrop-filter: blur(18px); }
.hero-card.floating strong { display: block; font-size: 28px; }
.hero-card.floating span { color: rgba(255,255,255,.7); font-size: 13px; }

.proof-strip { background: #fff; border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { padding: 28px 24px; border-right: 1px solid var(--line); }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; font-size: 28px; color: var(--blue); }
.proof-item span { color: var(--muted); font-size: 13px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  border: 1px solid var(--line); background: #fff; border-radius: var(--radius); padding: 30px;
  box-shadow: 0 12px 42px rgba(7,29,73,.05); transition: transform .24s, box-shadow .24s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card .icon { width: 50px; height: 50px; display: grid; place-items: center; border-radius: 16px; background: rgba(11,78,162,.08); color: var(--blue); font-size: 22px; }
.card h3 { margin: 20px 0 10px; font-size: 23px; }
.card p { color: var(--muted); margin: 0; }
.card .link { display: inline-flex; margin-top: 22px; color: var(--blue); font-weight: 800; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.photo-stack { position: relative; min-height: 560px; }
.photo-stack img { width: 84%; height: 500px; object-fit: cover; border-radius: 34px; box-shadow: var(--shadow); }
.photo-stack img:last-child { position: absolute; width: 48%; height: 270px; right: 0; bottom: 0; border: 8px solid var(--paper); }
.quote { padding: 26px 0 26px 28px; border-left: 4px solid var(--orange); font-size: 24px; line-height: 1.55; color: var(--navy); font-family: "Noto Serif SC", serif; }

.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: phase; }
.phase { position: relative; min-height: 320px; padding: 26px; border-radius: 24px; color: #fff; background: linear-gradient(155deg, var(--blue), var(--navy)); overflow: hidden; }
.phase::after { counter-increment: phase; content: "0" counter(phase); position: absolute; right: -8px; bottom: -35px; font-size: 110px; font-weight: 900; color: rgba(255,255,255,.07); }
.phase .when { color: #ffb17a; font-weight: 800; font-size: 13px; }
.phase h3 { margin: 14px 0; font-size: 28px; }
.phase p { color: rgba(255,255,255,.72); }

.service-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.service-chip { padding: 22px 18px; min-height: 150px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.service-chip b { display: block; color: var(--orange); font-size: 13px; margin-bottom: 10px; }
.service-chip strong { display: block; color: var(--navy); font-size: 18px; }
.service-chip span { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; }

.media-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.media-card { overflow: hidden; border-radius: 28px; background: #091936; color: #fff; position: relative; min-height: 430px; }
.media-card img, .media-card video { width: 100%; height: 100%; object-fit: cover; }
.media-card figcaption { position: absolute; inset: auto 0 0; padding: 70px 28px 25px; background: linear-gradient(transparent, rgba(3,12,32,.92)); font-weight: 800; }
.video-card { border-radius: 28px; overflow: hidden; background: #071d49; }
.video-card video { width: 100%; max-height: 680px; aspect-ratio: 9/16; object-fit: cover; margin-inline: auto; background: #071d49; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.person { overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.person img { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: top; }
.person-body { padding: 22px; }
.person-role { color: var(--orange); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.person h3 { margin: 6px 0 8px; font-size: 24px; }
.person p { margin: 0; color: var(--muted); font-size: 14px; }

.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 38px 0; }
.result-stat { padding: 25px; border-radius: 20px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.result-stat strong { display: block; font-size: 33px; color: #ff9b57; }
.result-stat span { color: rgba(255,255,255,.66); font-size: 13px; }
.result-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.result-gallery figure { margin: 0; overflow: hidden; border-radius: 22px; background: #fff; }
.result-gallery img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.result-gallery figcaption { padding: 16px 18px; color: var(--ink); font-weight: 800; }
.fine-print { color: rgba(255,255,255,.56); font-size: 12px; }

.filter-panel { padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.filters { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 12px; }
.field { display: grid; gap: 7px; }
.field label { color: var(--muted); font-size: 12px; font-weight: 800; }
.field input, .field select { width: 100%; border: 1px solid var(--line); border-radius: 13px; padding: 12px 14px; background: #fff; color: var(--ink); }
.school-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; }
.school-card { padding: 23px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.school-card h3 { margin: 0 0 10px; }
.school-meta, .tag-row { display: flex; flex-wrap: wrap; gap: 7px; }
.tag { border-radius: 999px; background: rgba(11,78,162,.08); color: var(--blue); padding: 5px 9px; font-size: 11px; font-weight: 750; }
.school-card p { color: var(--muted); font-size: 13px; }
.empty-state { padding: 40px; text-align: center; color: var(--muted); grid-column: 1/-1; }

.faq { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 18px; background: #fff; overflow: hidden; }
.faq-button { width: 100%; border: 0; background: transparent; padding: 20px 24px; display: flex; justify-content: space-between; text-align: left; font-weight: 800; color: var(--navy); cursor: pointer; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-answer p { padding: 0 24px 22px; margin: 0; color: var(--muted); }
.faq-item.open .faq-answer { max-height: 360px; }

.cta-band { padding: 58px; border-radius: 34px; background: linear-gradient(130deg, var(--blue), var(--navy)); color: #fff; display: flex; justify-content: space-between; gap: 30px; align-items: center; }
.cta-band h2 { margin: 0; font-size: clamp(30px, 4vw, 50px); line-height: 1.12; font-family: "Noto Serif SC", serif; }
.cta-band p { color: rgba(255,255,255,.7); margin: 12px 0 0; }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.qr-card { padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); }
.qr-card img { border-radius: 16px; }
.contact-list { display: grid; gap: 14px; }
.contact-item { display: flex; gap: 15px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.contact-item strong { display: block; }
.contact-item span { color: var(--muted); font-size: 13px; }

.page-hero { padding: 160px 0 85px; color: #fff; background: linear-gradient(135deg, var(--navy), #0c4b92); }
.page-hero h1 { margin: 10px 0 16px; font-size: clamp(46px, 7vw, 78px); font-family: "Noto Serif SC", serif; line-height: 1.05; }
.page-hero p { max-width: 720px; color: rgba(255,255,255,.72); font-size: 18px; }
.breadcrumb { color: rgba(255,255,255,.62); font-size: 13px; }
.breadcrumb a { color: #fff; }

.gallery { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 120px; gap: 14px; }
.gallery img { width: 100%; height: 100%; object-fit: cover; border-radius: 20px; }
.gallery img:nth-child(1) { grid-column: span 7; grid-row: span 3; }
.gallery img:nth-child(2) { grid-column: span 5; grid-row: span 2; }
.gallery img:nth-child(3) { grid-column: span 5; grid-row: span 2; }
.gallery img:nth-child(4) { grid-column: span 4; grid-row: span 2; }
.gallery img:nth-child(5) { grid-column: span 4; grid-row: span 2; }
.gallery img:nth-child(6) { grid-column: span 4; grid-row: span 2; }

.site-footer { background: #04112d; color: #fff; padding: 70px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 44px; }
.footer-brand p { color: rgba(255,255,255,.58); max-width: 350px; }
.footer-col h3 { font-size: 14px; color: #ff9b57; }
.footer-col a, .footer-col span { display: block; color: rgba(255,255,255,.65); margin: 10px 0; font-size: 14px; }
.footer-bottom { margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.42); font-size: 12px; display: flex; justify-content: space-between; gap: 20px; }
.back-top { position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border: 0; border-radius: 50%; background: var(--orange); color: #fff; cursor: pointer; box-shadow: 0 12px 30px rgba(7,29,73,.25); opacity: 0; transform: translateY(12px); pointer-events: none; transition: .2s; z-index: 50; }
.back-top.show { opacity: 1; transform: none; pointer-events: auto; }
.mobile-bar { display: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .nav-links { position: fixed; inset: 76px 0 auto; background: var(--paper); padding: 22px; display: none; flex-direction: column; align-items: stretch; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .menu-button { display: block; }
  .hero-grid, .split, .media-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 500px; max-width: 680px; width: 100%; margin-inline: auto; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .cards, .school-list { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .result-grid { grid-template-columns: 1fr 1fr; }
  .filters { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 76px 0; }
  .section-head { align-items: start; flex-direction: column; }
  .hero { padding-top: 120px; min-height: auto; }
  .hero-grid { gap: 40px; }
  .hero h1 { font-size: clamp(46px, 16vw, 70px); }
  .hero-visual { min-height: 390px; }
  .hero-card.main { inset: 0 0 45px 20px; }
  .hero-card.floating { padding: 14px 16px; }
  .hero-card.floating strong { font-size: 22px; }
  .proof-grid, .cards, .timeline, .service-grid, .team-grid, .result-grid, .result-gallery, .school-list, .filters, .footer-grid { grid-template-columns: 1fr; }
  .proof-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: 0; }
  .photo-stack { min-height: 430px; }
  .photo-stack img { height: 390px; }
  .photo-stack img:last-child { height: 190px; }
  .cta-band { padding: 34px 25px; flex-direction: column; align-items: start; }
  .gallery { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 160px; }
  .gallery img, .gallery img:nth-child(n) { grid-column: span 1; grid-row: span 1; }
  .gallery img:first-child { grid-column: span 2; grid-row: span 2; }
  .footer-bottom { flex-direction: column; padding-bottom: 58px; }
  .mobile-bar { position: fixed; z-index: 70; inset: auto 10px 10px; display: grid; grid-template-columns: 1fr 1.4fr; gap: 8px; padding: 8px; border-radius: 18px; background: rgba(255,255,255,.92); backdrop-filter: blur(18px); box-shadow: 0 15px 45px rgba(7,29,73,.22); }
  .mobile-bar a { display: flex; align-items: center; justify-content: center; min-height: 46px; border-radius: 13px; font-weight: 800; color: var(--blue); }
  .mobile-bar a:last-child { background: var(--orange); color: #fff; }
  .back-top { bottom: 78px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .mobile-bar, .back-top, .button { display: none !important; }
  .section, .page-hero { padding: 24px 0; }
  body { background: #fff; color: #000; }
}
