:root {
  --navy-950: #061724;
  --navy-900: #092238;
  --navy-800: #0c304b;
  --orange: #f25a2a;
  --orange-bright: #ff7040;
  --ink: #071827;
  --muted: #5b6f7f;
  --line: #cbd8e1;
  --mist: #eef3f6;
  --white: #ffffff;
  --shadow: 0 26px 70px rgba(7, 24, 39, 0.14);
  --shell: min(1240px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f4f7f9;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
:focus-visible { outline: 3px solid rgba(242, 90, 42, 0.34); outline-offset: 3px; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 200; background: white; padding: .75rem 1rem; font-weight: 800; }
.skip-link:focus { top: 1rem; }

.demo-strip {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 24px;
  color: #1b3446;
  background: #e6edf1;
  border-bottom: 1px solid #cbd8e1;
  font-size: .78rem;
  font-weight: 650;
  letter-spacing: .04em;
  text-align: center;
}
.demo-strip strong { color: var(--orange); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: white;
  background: rgba(6, 23, 36, .96);
  border-bottom: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(14px);
}
.header-row { min-height: 78px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--navy-950);
  background: white;
  font-weight: 950;
  letter-spacing: -.08em;
}
.brand-name { display: block; font-size: .94rem; font-weight: 850; letter-spacing: .04em; line-height: 1.15; }
.brand-tag { display: block; margin-top: 5px; color: rgba(255,255,255,.5); font-size: .67rem; font-weight: 700; letter-spacing: .18em; line-height: 1; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 24px; }
.main-nav a { position: relative; color: rgba(255,255,255,.7); font-size: .84rem; font-weight: 700; white-space: nowrap; transition: color .18s ease; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: white; }
.main-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -27px; height: 3px; background: var(--orange); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.phone { color: white; font-size: .85rem; font-weight: 800; white-space: nowrap; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: .88rem;
  font-weight: 850;
  line-height: 1.2;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--orange); }
.button-primary:hover { background: var(--orange-bright); }
.button-dark { color: white; background: var(--navy-950); }
.button-ghost { color: white; background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.35); }
.arrow { font-size: 1.15em; line-height: 1; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.36); color: white; background: transparent; }
.menu-lines, .menu-lines::before, .menu-lines::after { width: 20px; height: 2px; display: block; background: currentColor; content: ""; transition: transform .2s ease; }
.menu-lines { position: relative; margin: auto; }
.menu-lines::before { position: absolute; top: -6px; }
.menu-lines::after { position: absolute; top: 6px; }
.mobile-nav { display: none; padding: 0 24px 20px; background: var(--navy-950); }
.mobile-nav a { display: block; padding: 12px 0; color: rgba(255,255,255,.78); border-bottom: 1px solid rgba(255,255,255,.1); font-weight: 700; }
.mobile-nav .mobile-phone { color: white; }
.mobile-nav.open { display: block; }

.eyebrow { display: flex; align-items: center; gap: 13px; margin: 0; color: var(--orange); font-size: .75rem; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 34px; height: 2px; background: currentColor; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; }
.display { margin: 24px 0 0; font-size: clamp(2.65rem, 6vw, 5.7rem); font-weight: 950; letter-spacing: -.065em; }
.section-title { margin: 22px 0 0; font-size: clamp(2rem, 4vw, 3.7rem); font-weight: 930; letter-spacing: -.05em; }
.section-copy { max-width: 720px; color: var(--muted); font-size: 1.1rem; line-height: 1.9; }
.light-copy { color: rgba(255,255,255,.67); }
.orange { color: var(--orange-bright); }

.hero {
  position: relative;
  min-height: 690px;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  color: white;
  background: var(--navy-950);
}
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,23,36,.98) 0%, rgba(6,23,36,.87) 46%, rgba(6,23,36,.3) 100%), linear-gradient(0deg, rgba(6,23,36,.5), transparent 55%); }
.grid-pattern { background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 48px 48px; }
.hero-inner { position: relative; z-index: 2; min-height: 690px; display: flex; flex-direction: column; justify-content: space-between; padding-block: 92px 72px; }
.hero-copy { max-width: 965px; }
.hero-copy > p:last-of-type { max-width: 770px; margin: 26px 0 0; color: rgba(255,255,255,.72); font-size: 1.22rem; line-height: 1.9; }
.hero-bottom { display: flex; align-items: flex-end; justify-content: space-between; gap: 36px; margin-top: 64px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.geo { max-width: 590px; text-align: right; color: rgba(255,255,255,.68); font-size: .9rem; }
.geo strong { display: block; margin-bottom: 7px; color: rgba(255,255,255,.42); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; }

.status-band { padding: 28px 0; color: white; background: var(--navy-800); }
.status-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 22px; padding: 24px 28px; border: 1px solid rgba(255,255,255,.18); border-left: 5px solid var(--orange); background: linear-gradient(105deg, rgba(6,23,36,.6), rgba(242,90,42,.08)); }
.status-icon { width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.3); color: var(--orange-bright); font-size: 1.35rem; }
.status-card h2 { margin: 0; font-size: 1.05rem; }
.status-card p { margin: 5px 0 0; color: rgba(255,255,255,.63); font-size: .88rem; }
.status-card a { color: var(--orange-bright); font-size: .86rem; font-weight: 850; white-space: nowrap; }

.section { padding: 100px 0; }
.section-white { background: white; }
.section-mist { background: var(--mist); }
.section-dark { color: white; background-color: var(--navy-950); }
.section-navy { color: white; background-color: var(--navy-800); }
.section-head { display: grid; grid-template-columns: .84fr 1.16fr; gap: 50px; align-items: end; }
.section-head .section-copy { justify-self: end; margin: 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 50px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.card { min-height: 250px; padding: 29px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: white; transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { position: relative; z-index: 2; transform: translateY(-5px); box-shadow: var(--shadow); }
.card-top { display: flex; align-items: center; justify-content: space-between; }
.card-icon { color: var(--orange); font-size: 1.35rem; font-weight: 900; }
.card-num { color: #7b8d9a; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .76rem; }
.card h3 { margin: 42px 0 0; font-size: 1.22rem; }
.card p { margin: 14px 0 0; color: var(--muted); font-size: .9rem; line-height: 1.75; }
.text-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 30px; font-weight: 850; }
.text-link .arrow { color: var(--orange); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 62px; align-items: center; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.14); }
.feature-cell { min-height: 145px; padding: 27px; background: var(--navy-800); }
.feature-cell span { color: var(--orange-bright); font-size: 1.25rem; }
.feature-cell strong { display: block; margin-top: 30px; font-size: 1rem; }
.visual-panel { position: relative; min-height: 470px; overflow: hidden; background: #dce5eb; }
.visual-panel::before { content: ""; position: absolute; inset: 24px; border: 1px solid #9eb0bd; }
.visual-panel .visual-badge { position: absolute; left: 30px; top: 30px; width: 80px; height: 80px; display: grid; place-items: center; color: var(--orange); background: var(--navy-950); font-size: 1.8rem; }
.visual-panel .visual-copy { position: absolute; left: 34px; right: 34px; bottom: 35px; }
.visual-panel small { color: var(--muted); font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.visual-panel strong { display: block; max-width: 470px; margin-top: 10px; font-size: clamp(2rem, 4vw, 3.1rem); line-height: 1.05; letter-spacing: -.05em; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; font-weight: 700; }
.check-list li::before { content: "✓"; color: var(--orange); font-weight: 950; }

.catalog-panel { display: grid; grid-template-columns: 1.05fr .95fr; margin-top: 46px; background: white; }
.catalog-panel > img { width: 100%; height: 100%; min-height: 430px; object-fit: cover; }
.catalog-groups { display: grid; gap: 1px; background: var(--line); }
.catalog-group { padding: 36px; background: white; }
.catalog-group h3 { margin: 0; font-size: 1.35rem; }
.catalog-group p { color: var(--muted); line-height: 1.9; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 48px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.step { padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: white; }
.step span { color: var(--orange); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 850; }
.step h3 { margin: 22px 0 0; font-size: 1.18rem; }
.step p { margin: 12px 0 0; color: var(--muted); font-size: .9rem; }

.page-hero { padding: 88px 0 72px; color: white; background-color: var(--navy-950); }
.page-hero .section-copy { margin-top: 24px; color: rgba(255,255,255,.67); }
.page-hero .display { max-width: 1050px; font-size: clamp(2.5rem, 5.4vw, 5rem); }
.page-hero-compact { padding-block: 64px; }

.two-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 46px; }
.info-panel { padding: 38px; border-top: 5px solid var(--orange); background: white; box-shadow: 0 14px 36px rgba(7,24,39,.06); }
.info-panel.dark { color: white; background: var(--navy-800); box-shadow: none; }
.info-panel h3 { font-size: 1.55rem; }
.info-panel p, .info-panel li { color: var(--muted); }
.info-panel.dark p, .info-panel.dark li { color: rgba(255,255,255,.65); }
.clean-list { margin: 22px 0 0; padding: 0; list-style: none; }
.clean-list li { display: flex; gap: 10px; padding: 8px 0; }
.clean-list li::before { content: "—"; color: var(--orange); font-weight: 900; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.metric { min-height: 175px; padding: 28px; border: 1px solid var(--line); background: white; }
.metric strong { display: block; font-size: 1.5rem; line-height: 1.2; }
.metric span { display: block; margin-bottom: 16px; color: var(--orange); font-size: .75rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.metric p { margin: 15px 0 0; color: var(--muted); font-size: .9rem; }

.form-section { background: var(--navy-800); color: white; }
.form-layout { display: grid; grid-template-columns: .76fr 1.24fr; gap: 68px; align-items: start; }
.form-intro { position: sticky; top: 120px; }
.form-intro .section-copy { color: rgba(255,255,255,.61); }
.demo-note { display: flex; align-items: flex-start; gap: 12px; margin-top: 34px; color: rgba(255,255,255,.66); font-size: .9rem; }
.demo-note::before { content: "i"; flex: 0 0 auto; width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--orange); color: var(--orange); font-weight: 900; }
.lead-form { color: var(--ink); background: white; padding: 38px; box-shadow: var(--shadow); }
.lead-form h3 { margin: 0; font-size: 2rem; letter-spacing: -.04em; }
.lead-form .form-subtitle { margin: 10px 0 0; color: var(--muted); }
.form-demo-banner { margin: 22px 0; padding: 12px 15px; border-left: 3px solid var(--orange); background: #f2f5f7; color: #445c6c; font-size: .82rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 19px 20px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .88rem; font-weight: 850; line-height: 1.35; }
.field input, .field select, .field textarea {
  width: 100%;
  min-height: 52px;
  padding: 13px 15px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #c5d4df;
  border-radius: 0;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgba(242,90,42,.12); }
.field textarea { min-height: 130px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #8a9ba7; }
.dynamic-fields { display: contents; }
.consent-row { display: flex; align-items: flex-start; gap: 11px; margin-top: 20px; color: #536a7a; font-size: .84rem; }
.consent-row input { width: 18px; height: 18px; margin: 4px 0 0; accent-color: var(--orange); }
.consent-row a { text-decoration: underline; text-underline-offset: 3px; }
.form-note { margin: 14px 0 0; padding: 15px 17px; border-left: 2px solid var(--orange); color: #596e7c; background: #f0f4f6; font-size: .82rem; }
.submit-button { width: 100%; margin-top: 22px; border: 0; }
.form-footnote { margin: 10px 0 0; color: #7a8c99; text-align: center; font-size: .76rem; }
.form-success { min-height: 460px; display: none; place-items: center; padding: 35px; text-align: center; background: white; box-shadow: var(--shadow); }
.form-success.visible { display: grid; }
.success-icon { width: 70px; height: 70px; display: grid; place-items: center; margin: 0 auto 26px; color: var(--orange); background: var(--navy-900); font-size: 1.55rem; }
.form-success h3 { margin: 0; font-size: 2.1rem; }
.form-success p { max-width: 580px; margin: 18px auto 0; color: var(--muted); }
.form-success .button { margin-top: 28px; min-width: 270px; }

.legal-shell { max-width: 980px; }
.legal-note { margin: 28px 0 0; padding: 18px 20px; border-left: 4px solid var(--orange); background: #eef3f6; color: #465d6d; }
.legal { padding: 72px 0 100px; background: white; }
.legal h2 { margin: 48px 0 18px; font-size: 1.55rem; }
.legal h3 { margin: 30px 0 12px; font-size: 1.12rem; }
.legal p, .legal li { color: #435a6a; line-height: 1.9; }
.legal ul, .legal ol { padding-left: 1.4rem; }
.legal dl { display: grid; gap: 1px; margin-top: 24px; background: var(--line); }
.legal dl > div { display: grid; grid-template-columns: 250px 1fr; gap: 24px; padding: 17px 20px; background: #f7f9fa; }
.legal dt { font-weight: 850; }
.legal dd { margin: 0; color: #435a6a; }
.toc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; margin: 30px 0 0; padding: 24px; background: #f1f5f7; }
.toc a { color: #3d5667; font-size: .9rem; text-decoration: underline; text-underline-offset: 3px; }

.contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; align-items: stretch; }
.contact-card { padding: 36px; color: white; background: var(--navy-900); }
.contact-card h2 { font-size: 2rem; }
.contact-card dl { margin: 30px 0 0; }
.contact-card dl > div { padding: 18px 0; border-top: 1px solid rgba(255,255,255,.13); }
.contact-card dt { color: rgba(255,255,255,.46); font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.contact-card dd { margin: 5px 0 0; color: rgba(255,255,255,.85); }
.contact-card address { font-style: normal; }
.region-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.region { min-height: 220px; padding: 30px; border: 1px solid var(--line); background: white; }
.region strong { display: block; margin-top: 34px; font-size: 1.5rem; }
.region p { color: var(--muted); }

.footer { padding: 72px 0 28px; color: white; background: var(--navy-950); }
.footer-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr 1.15fr; gap: 42px; }
.footer h2 { font-size: 1.05rem; }
.footer h3 { color: rgba(255,255,255,.42); font-size: .73rem; letter-spacing: .16em; text-transform: uppercase; }
.footer p, .footer a { color: rgba(255,255,255,.66); font-size: .88rem; }
.footer a:hover { color: white; }
.footer-links { display: grid; gap: 9px; }
.footer-legal { display: grid; grid-template-columns: 1.6fr .8fr 1fr; gap: 28px; align-items: start; margin-top: 48px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.14); }
.footer-legal p { margin: 0; color: rgba(255,255,255,.43); font-size: .76rem; }
.footer-legal strong { color: rgba(255,255,255,.82); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 38px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.11); }
.footer-bottom p { margin: 0; color: rgba(255,255,255,.37); font-size: .73rem; }

@media (max-width: 1100px) {
  .main-nav { display: none; }
  .header-actions { margin-left: auto; }
  .menu-toggle { display: block; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.2fr .8fr; }
  .footer-legal { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  :root { --shell: min(100% - 34px, 720px); }
  .demo-strip { font-size: .72rem; }
  .header-row { min-height: 70px; gap: 12px; }
  .brand-tag { display: none; }
  .header-actions .phone, .header-actions .button { display: none; }
  .hero, .hero-inner { min-height: 650px; }
  .hero-inner { padding-block: 70px 52px; }
  .hero::after { background: linear-gradient(90deg, rgba(6,23,36,.97), rgba(6,23,36,.66)), linear-gradient(0deg, rgba(6,23,36,.7), transparent); }
  .hero-bottom { align-items: flex-start; flex-direction: column; margin-top: 48px; }
  .geo { text-align: left; }
  .status-card { grid-template-columns: auto 1fr; }
  .status-card a { grid-column: 2; }
  .section { padding: 76px 0; }
  .section-head, .split, .catalog-panel, .form-layout, .contact-layout { grid-template-columns: 1fr; }
  .section-head .section-copy { justify-self: start; }
  .catalog-panel > img { min-height: 350px; }
  .form-intro { position: static; }
  .footer-legal { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --shell: calc(100vw - 28px); }
  .brand-name { font-size: .85rem; }
  .brand-mark { width: 40px; height: 40px; }
  .display { font-size: clamp(2.45rem, 13vw, 4rem); }
  .hero-copy > p:last-of-type, .section-copy { font-size: 1rem; }
  .hero-buttons, .hero-buttons .button { width: 100%; }
  .status-card { grid-template-columns: 1fr; padding: 22px; }
  .status-card a { grid-column: 1; white-space: normal; }
  .cards, .feature-grid, .two-panels, .metric-grid, .form-grid, .region-grid, .toc { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .check-list { grid-template-columns: 1fr; }
  .card { min-height: 220px; }
  .page-hero { padding: 64px 0 56px; }
  .lead-form { padding: 24px 18px; }
  .form-success { min-height: 400px; padding: 24px 18px; }
  .form-success .button { width: 100%; min-width: 0; }
  .field.full { grid-column: auto; }
  .legal dl > div { grid-template-columns: 1fr; gap: 5px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}

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