:root {
  --navy-950: #03143d;
  --navy-900: #061d54;
  --navy-800: #082a72;
  --navy-700: #0c3c96;
  --gold: #f7c900;
  --gold-light: #ffe36b;
  --red: #e2202d;
  --ink: #101828;
  --muted: #5d6678;
  --line: #dfe4ec;
  --paper: #ffffff;
  --soft: #f4f6f9;
  --radius: 18px;
  --shadow: 0 22px 60px rgba(3, 20, 61, .14);
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.container { width: min(calc(100% - 40px), var(--content)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 999; padding: 10px 16px; background: var(--gold); color: var(--navy-950); font-weight: 800; }
.skip-link:focus { top: 12px; }

.topline { height: 5px; background: linear-gradient(90deg, var(--red) 0 42%, var(--gold) 42% 100%); }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(4, 25, 70, .96); backdrop-filter: blur(16px); box-shadow: 0 8px 30px rgba(0,0,0,.13); }
.nav { min-height: 82px; display: flex; align-items: center; gap: 28px; }
.brand { width: 220px; flex: 0 0 auto; }
.brand img { width: 100%; border-radius: 2px; }
.nav-links { display: flex; align-items: center; gap: 24px; margin-left: auto; color: #fff; font-size: 14px; font-weight: 650; }
.nav-links a { position: relative; padding-block: 30px; opacity: .82; }
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a.active::after, .nav-links a:hover::after { content: ""; position: absolute; left: 0; right: 0; bottom: 18px; height: 3px; background: var(--gold); border-radius: 4px; }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.lang-toggle { border: 1px solid rgba(255,255,255,.35); background: transparent; color: #fff; border-radius: 999px; padding: 8px 12px; cursor: pointer; font-weight: 750; font-size: 13px; }
.lang-toggle:hover { border-color: var(--gold); color: var(--gold); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.25); background: transparent; color: #fff; border-radius: 10px; cursor: pointer; font-size: 23px; }

.hero { position: relative; min-height: 720px; display: grid; align-items: end; overflow: hidden; background: var(--navy-950); color: #fff; }
.hero::before { content: ""; position: absolute; inset: 0; background: var(--hero-image) center/cover no-repeat; transform: scale(1.015); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(2,13,43,.94) 0%, rgba(3,24,72,.70) 42%, rgba(3,19,56,.12) 78%), linear-gradient(0deg, rgba(3,20,61,.82) 0%, transparent 46%); }
.hero-inner { position: relative; z-index: 2; padding: 118px 0 84px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--gold); font-size: 13px; letter-spacing: .15em; text-transform: uppercase; font-weight: 850; }
.eyebrow::before { content: ""; width: 34px; height: 4px; background: linear-gradient(90deg, var(--red) 0 50%, var(--gold) 50%); }
.hero h1 { max-width: 860px; margin: 0; font-size: clamp(48px, 6.2vw, 88px); line-height: 1.02; letter-spacing: -.035em; }
.hero h1 strong { color: var(--gold); }
.hero-copy { max-width: 720px; margin: 24px 0 0; color: rgba(255,255,255,.82); font-size: clamp(18px, 2vw, 23px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 12px 22px; border-radius: 10px; border: 1px solid transparent; font-weight: 800; transition: .2s ease; cursor: pointer; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--gold); color: var(--navy-950); box-shadow: 0 12px 30px rgba(247,201,0,.25); }
.btn-primary:hover { background: var(--gold-light); }
.btn-secondary { color: #fff; border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.06); }
.btn-secondary:hover { border-color: #fff; background: rgba(255,255,255,.12); }
.hero-proof { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); max-width: 780px; margin-top: 56px; border-top: 1px solid rgba(255,255,255,.24); }
.proof { padding: 20px 22px 0 0; }
.proof strong { display: block; color: var(--gold); font-size: 29px; line-height: 1.2; }
.proof span { color: rgba(255,255,255,.7); font-size: 13px; }

.stripe { height: 14px; background: linear-gradient(170deg, var(--red) 0 44%, var(--navy-950) 44% 55%, var(--gold) 55% 100%); }
.section { padding: 98px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: var(--navy-950); color: #fff; }
.section-head { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; align-items: end; margin-bottom: 48px; }
.section-head h2, .page-hero h1 { margin: 0; font-size: clamp(36px, 4vw, 58px); line-height: 1.08; letter-spacing: -.025em; }
.section-head p { margin: 0; color: var(--muted); font-size: 18px; }
.section-dark .section-head p { color: rgba(255,255,255,.68); }
.kicker { display: block; margin-bottom: 12px; color: var(--red); font-size: 13px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.section-dark .kicker { color: var(--gold); }

.sector-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.sector-card { position: relative; min-height: 290px; padding: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.sector-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.sector-card::after { content: attr(data-index); position: absolute; right: -5px; bottom: -30px; color: #f0f2f6; font-size: 132px; line-height: 1; font-weight: 900; }
.sector-card h3 { position: relative; z-index: 1; margin: 24px 0 8px; color: var(--navy-900); font-size: 25px; }
.sector-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: 15px; }
.sector-icon { position: relative; z-index: 1; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; background: var(--navy-900); color: var(--gold); font-weight: 900; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.media-frame { position: relative; overflow: hidden; border-radius: 24px; box-shadow: var(--shadow); background: var(--navy-900); }
.media-frame img { width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.media-frame .caption { position: absolute; left: 20px; bottom: 20px; padding: 10px 14px; border-left: 4px solid var(--gold); background: rgba(3,20,61,.86); color: #fff; font-size: 13px; }
.content h2 { margin: 0 0 20px; font-size: clamp(34px, 4vw, 54px); line-height: 1.1; }
.content p { color: var(--muted); font-size: 18px; }
.content .lead { color: var(--ink); font-size: 21px; font-weight: 650; }
.check-list { display: grid; gap: 14px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--muted); }
.check-list li::before { content: "✓"; display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: var(--gold); color: var(--navy-950); font-size: 13px; font-weight: 900; }

.model-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.model-main, .model-side { border-radius: 24px; overflow: hidden; }
.model-main { min-height: 470px; padding: 44px; background: linear-gradient(135deg, var(--navy-800), var(--navy-950)); color: #fff; }
.model-side { display: grid; gap: 18px; }
.model-card { padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.model-main h3 { margin: 0 0 14px; font-size: 42px; }
.model-main p { max-width: 620px; color: rgba(255,255,255,.7); font-size: 18px; }
.model-main .big { display: block; margin-top: 90px; color: var(--gold); font-size: clamp(60px, 10vw, 120px); line-height: .8; font-weight: 900; letter-spacing: -.06em; }
.model-card h3 { margin: 0 0 7px; color: var(--navy-900); }
.model-card p { margin: 0; color: var(--muted); }

.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.15); border-radius: 20px; overflow: hidden; }
.number { padding: 34px 26px; background: var(--navy-900); }
.number strong { display: block; color: var(--gold); font-size: 36px; line-height: 1.1; }
.number span { color: rgba(255,255,255,.65); font-size: 14px; }

.cta { position: relative; overflow: hidden; border-radius: 26px; background: var(--navy-900); color: #fff; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,20,61,.96), rgba(3,20,61,.48)), url('../images/flagship.webp') center/cover; }
.cta-inner { position: relative; z-index: 1; padding: 72px; max-width: 820px; }
.cta h2 { margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.08; }
.cta p { color: rgba(255,255,255,.74); font-size: 18px; }

.page-hero { position: relative; overflow: hidden; padding: 110px 0 80px; background: var(--navy-950); color: #fff; }
.page-hero::after { content: ""; position: absolute; width: 50vw; height: 320px; right: -7vw; bottom: -180px; background: var(--gold); transform: rotate(-8deg); opacity: .95; }
.page-hero .container { position: relative; z-index: 1; }
.page-hero p { max-width: 760px; margin: 22px 0 0; color: rgba(255,255,255,.7); font-size: 20px; }
.crumbs { margin-bottom: 20px; color: var(--gold); font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.info-card h3 { margin: 0 0 10px; color: var(--navy-900); font-size: 23px; }
.info-card p { margin: 0; color: var(--muted); }
.info-card .tag { display: inline-flex; margin-bottom: 18px; padding: 6px 10px; border-radius: 999px; background: #fff5c2; color: #644e00; font-size: 12px; font-weight: 800; }

.timeline { display: grid; gap: 0; }
.timeline-item { display: grid; grid-template-columns: 170px 1fr; gap: 30px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.timeline-item strong { color: var(--red); font-size: 15px; text-transform: uppercase; letter-spacing: .05em; }
.timeline-item h3 { margin: 0 0 6px; color: var(--navy-900); }
.timeline-item p { margin: 0; color: var(--muted); }

.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.project-card { overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.project-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.project-card-content { padding: 26px; }
.project-card h3 { margin: 0 0 7px; color: var(--navy-900); font-size: 25px; }
.project-card p { margin: 0; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; }
.contact-panel { padding: 38px; border-radius: 22px; background: var(--navy-900); color: #fff; }
.contact-panel h2 { margin: 0 0 16px; font-size: 38px; }
.contact-panel p { color: rgba(255,255,255,.68); }
.contact-link { display: block; margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.18); }
.contact-link small { display: block; color: var(--gold); font-weight: 800; }
.contact-link strong { display: block; margin-top: 4px; font-size: 20px; }
.contact-form { padding: 38px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field-full { grid-column: 1 / -1; }
.field label { color: var(--navy-900); font-size: 13px; font-weight: 800; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 14px; border: 1px solid #ccd3df; border-radius: 9px; background: #fff; color: var(--ink); outline: none; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--navy-700); box-shadow: 0 0 0 3px rgba(12,60,150,.1); }
.field textarea { min-height: 150px; resize: vertical; }
.form-note { color: var(--muted); font-size: 12px; }

.site-footer { background: #021033; color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.3fr .7fr .7fr 1fr; gap: 44px; padding: 66px 0 50px; }
.footer-brand img { width: 230px; }
.footer-brand p { max-width: 340px; color: rgba(255,255,255,.55); font-size: 14px; }
.footer-col h4 { margin: 0 0 16px; color: var(--gold); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.footer-col a { display: block; margin: 9px 0; color: rgba(255,255,255,.64); font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0 30px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.42); font-size: 12px; }

.legal { max-width: 900px; }
.legal h2 { margin: 40px 0 12px; color: var(--navy-900); }
.legal p, .legal li { color: var(--muted); }
.empty-state { text-align: center; padding: 120px 20px; }
.empty-state .code { color: var(--gold); font-size: clamp(90px, 18vw, 190px); line-height: .8; font-weight: 950; }
.empty-state h1 { margin: 28px 0 8px; }
.empty-state p { color: var(--muted); }

@media (max-width: 980px) {
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav { min-height: 72px; }
  .brand { width: 185px; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 77px; padding: 16px 20px 24px; background: var(--navy-950); flex-direction: column; align-items: stretch; gap: 0; box-shadow: 0 20px 30px rgba(0,0,0,.2); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .nav-links a::after { display: none; }
  .nav-actions { margin-left: auto; }
  .hero { min-height: 660px; }
  .hero::after { background: linear-gradient(90deg, rgba(2,13,43,.92), rgba(3,24,72,.55)), linear-gradient(0deg, rgba(3,20,61,.8), transparent); }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
  .sector-grid, .card-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .model-grid, .contact-grid { grid-template-columns: 1fr; }
  .numbers { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--content)); }
  .brand { width: 160px; }
  .lang-toggle { padding: 7px 9px; }
  .hero { min-height: 640px; }
  .hero-inner { padding: 90px 0 58px; }
  .hero h1 { font-size: 44px; }
  .hero-copy { font-size: 17px; }
  .hero-proof { grid-template-columns: 1fr; max-width: 250px; }
  .proof { border-bottom: 1px solid rgba(255,255,255,.16); padding-bottom: 12px; }
  .section { padding: 70px 0; }
  .section-head h2, .page-hero h1 { font-size: 38px; }
  .sector-grid, .card-grid, .project-grid { grid-template-columns: 1fr; }
  .sector-card { min-height: 240px; }
  .split { gap: 36px; }
  .model-main { min-height: 390px; padding: 30px; }
  .model-main .big { margin-top: 60px; }
  .numbers { grid-template-columns: 1fr; }
  .cta-inner { padding: 46px 26px; }
  .page-hero { padding: 82px 0 60px; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .contact-panel, .contact-form { padding: 28px 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 34px 22px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

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