:root {
  --navy: #071b33;
  --navy-2: #0e2a45;
  --ink: #111820;
  --orange: #f06419;
  --paper: #f5f6f7;
  --white: #fff;
  --line: #d9dde1;
  --muted: #68717a;
  --max: 1240px;
  --shadow: 0 24px 60px rgba(7, 27, 51, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: 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; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 1000; background: var(--orange); color: white; padding: 12px 18px; transition: top .2s; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 50; color: white; background: rgba(7, 27, 51, .96); border-bottom: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(14px); }
.header-inner { min-height: 84px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; flex-direction: column; flex: 0 0 auto; line-height: 1; }
.brand-latin { color: white; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: 27px; letter-spacing: .055em; }
.brand-latin span { color: var(--orange); }
.brand-cn { margin-top: 5px; color: #cfd6de; font-size: 12px; font-weight: 700; letter-spacing: .22em; }
.site-nav { display: flex; align-items: stretch; gap: 30px; margin-left: auto; }
.site-nav a { position: relative; display: flex; align-items: center; min-height: 84px; color: #e6eaf0; font-size: 14px; font-weight: 700; }
.site-nav a small, .multi-secondary { display: block; margin-top: 3px; color: inherit; opacity: .62; font-size: .65em; font-weight: 600; letter-spacing: .03em; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.language-control select { width: 150px; max-width: 150px; color: white; background: transparent; border: 1px solid rgba(255,255,255,.3); border-radius: 6px; padding: 9px 28px 9px 10px; font-size: 12px; }
.language-control select option { color: var(--ink); }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 54px; padding: 0 24px; color: white; background: var(--orange); border: 1px solid var(--orange); border-radius: 6px; font-weight: 800; cursor: pointer; transition: transform .2s, background .2s, box-shadow .2s; }
.button::after { content: "→"; margin-left: 18px; transition: transform .2s; }
.button:hover { background: #d95211; box-shadow: 0 10px 30px rgba(240,100,25,.22); transform: translateY(-2px); }
.button:hover::after { transform: translateX(4px); }
.button-small { min-height: 42px; padding-inline: 16px; font-size: 12px; }
.button-ghost { color: var(--navy); background: transparent; border-color: var(--navy); }
.button-ghost:hover { color: white; background: var(--navy); box-shadow: none; }
.menu-toggle { display: none; width: 44px; height: 44px; background: transparent; border: 0; }
.menu-toggle > span:not(.sr-only) { display: block; width: 24px; height: 2px; margin: 5px auto; background: white; }

.hero { position: relative; min-height: calc(100vh - 84px); display: grid; align-items: center; overflow: hidden; background: #f7f8f9; }
.hero::before { content: ""; position: absolute; inset: 0 48% 0 0; background: var(--white); }
.hero-grid { position: relative; display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 54px; padding-block: 74px 96px; }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin: 0; color: var(--navy); font-size: clamp(48px, 5.2vw, 82px); line-height: .99; letter-spacing: -.045em; }
.hero h1 .multi-secondary { margin-top: 18px; max-width: 560px; color: var(--navy-2); font-family: Impact, "Arial Narrow Bold", sans-serif; font-size: .31em; letter-spacing: .015em; line-height: 1.1; }
.lead { max-width: 610px; margin: 30px 0 0; color: #39434d; font-size: 18px; line-height: 1.78; }
.lead .multi-secondary, .section-heading p .multi-secondary, .inquiry-copy > p .multi-secondary { margin-top: 8px; color: var(--muted); font-size: .82em; line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.service-line { margin: 38px 0 0; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .03em; }
.hero-media { position: relative; align-self: stretch; min-height: 650px; overflow: hidden; border-radius: 10px 0 0 10px; background: #e8eaec; box-shadow: var(--shadow); }
.hero-media::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 14%; background: linear-gradient(90deg, #f7f8f9, transparent); pointer-events: none; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 66% 50%; transform: scale(1.12); }
.hero-media-caption { position: absolute; right: 22px; bottom: 18px; z-index: 2; padding: 7px 9px; color: white; background: var(--navy); font-size: 10px; letter-spacing: .15em; }
.hero-media-catalog { padding: 26px; background: #e8eaec; }
.hero-media-catalog::after { display: none; }
.hero-media-catalog img { object-fit: contain; object-position: center; transform: none; border-radius: 5px; box-shadow: 0 18px 42px rgba(7, 27, 51, .16); }
.scroll-cue { position: absolute; left: 50%; bottom: 20px; width: 24px; height: 40px; border: 1px solid #9da5ad; border-radius: 20px; }
.scroll-cue span { position: absolute; left: 10px; top: 8px; width: 3px; height: 7px; background: var(--orange); border-radius: 2px; animation: scroll 1.7s infinite; }
@keyframes scroll { 0% { opacity: 0; transform: translateY(0); } 35% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

.section { padding: 112px 0; }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 64px; margin-bottom: 52px; }
.section-index { margin: 0 0 16px; color: var(--orange); font-size: 12px; font-weight: 900; letter-spacing: .18em; }
.section-heading h2, .about-copy h2, .inquiry-copy h2 { margin: 0; color: var(--navy); font-size: clamp(36px, 4.2vw, 62px); line-height: 1.08; letter-spacing: -.035em; }
.section-heading h2 .multi-secondary, .about-copy h2 .multi-secondary, .inquiry-copy h2 .multi-secondary { margin-top: 9px; font-size: .35em; letter-spacing: .02em; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.product-section { background: var(--white); }
.product-categories { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.product-category { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 420px; background: white; overflow: hidden; }
.product-category-wide { grid-column: 1 / -1; grid-template-columns: 1.35fr .65fr; }
.product-category-wide figure { min-height: 520px; }
.product-category figure { min-width: 0; margin: 0; padding: 20px; background: var(--paper); overflow: hidden; }
.product-category figure img { width: 100%; height: 100%; object-fit: contain; transition: transform .45s ease; }
.product-category figure.product-gallery { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 1px; padding: 0; background: var(--line); }
.product-category figure.product-gallery-two { grid-template-rows: 1fr; }
.product-gallery img { min-width: 0; min-height: 0; padding: 10px; background: var(--paper); }
.product-category:hover figure img { transform: scale(1.025); }
.product-category-copy { position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 34px 30px; }
.product-category-copy > span { color: var(--orange); font-family: Impact, sans-serif; font-size: 28px; letter-spacing: .05em; }
.product-category-copy h3 { margin: 18px 0 4px; color: var(--navy); font-size: 25px; line-height: 1.18; }
.product-category-copy h3 .multi-secondary { margin-top: 7px; font-size: .5em; }
.product-category-copy p { margin: 17px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.product-category-copy .product-use { margin-top: 8px; color: var(--orange); font-size: 11px; font-weight: 900; letter-spacing: .06em; }
.product-category-copy .product-use .multi-secondary { display: inline; margin-left: 5px; font-size: .85em; }
.product-category-copy a { margin-top: 22px; color: var(--navy); font-size: 12px; font-weight: 900; border-bottom: 2px solid var(--orange); }

.solutions-section { color: white; background: var(--navy); }
.section-heading-light h2 { color: white; }
.section-heading-light > p { color: #a9b5c1; }
.scenario-rail { border-top: 1px solid rgba(255,255,255,.18); }
.scenario { display: grid; grid-template-columns: 100px 1fr; gap: 24px; padding: 34px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.scenario > span { color: var(--orange); font-family: Impact, sans-serif; font-size: 28px; }
.scenario div { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; }
.scenario h3 { margin: 0; color: white; font-size: 25px; }
.scenario h3 .multi-secondary { font-size: .48em; }
.scenario p { max-width: 620px; margin: 0; color: #a9b5c1; line-height: 1.7; }

.process-section { background: var(--paper); }
.process-list { counter-reset: steps; display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border-top: 1px solid #cbd0d5; }
.process-list li { position: relative; min-height: 250px; padding: 34px 28px 20px 0; border-right: 1px solid #cbd0d5; }
.process-list li:not(:first-child) { padding-left: 28px; }
.process-list li:last-child { border-right: 0; }
.process-list span { color: var(--orange); font-family: Impact, sans-serif; font-size: 48px; }
.process-list h3 { margin: 28px 0 12px; color: var(--navy); font-size: 19px; }
.process-list h3 .multi-secondary { font-size: .58em; }
.process-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.about-section { overflow: hidden; }
.about-grid { display: grid; grid-template-columns: .75fr 1.25fr; align-items: center; gap: 80px; }
.about-copy > p:not(.section-index) { margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.about-points { margin-top: 38px; border-top: 1px solid var(--line); }
.about-points p { margin: 0 !important; padding: 17px 0; color: var(--navy) !important; font-weight: 800; border-bottom: 1px solid var(--line); }
.about-media { position: relative; margin: 0; height: 670px; overflow: hidden; background: var(--paper); }
.about-media::before { content: ""; position: absolute; left: -18px; top: -18px; width: 110px; height: 110px; border-left: 4px solid var(--orange); border-top: 4px solid var(--orange); z-index: 2; }
.about-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; }

.inquiry-section { padding: 105px 0; color: white; background: var(--navy); }
.inquiry-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 76px; align-items: center; }
.inquiry-copy h2 { color: white; }
.inquiry-copy > p:not(.section-index) { max-width: 480px; margin: 26px 0 36px; color: #b7c1cb; font-size: 16px; line-height: 1.75; }
.phone-link { display: block; margin-bottom: 14px; color: white; font-size: 24px; font-weight: 900; }
.phone-link span { display: block; margin-bottom: 8px; color: var(--orange); font-size: 10px; letter-spacing: .2em; }
.email-link { color: #aab7c3; font-size: 14px; border-bottom: 1px solid #607387; }
.address-link { display: block; max-width: 430px; margin-top: 17px; color: #aab7c3; font-size: 13px; line-height: 1.6; }
.address-link:hover { color: white; }
.contact-channels { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.contact-channels a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; color: #d6dee6; border: 1px solid #3e5368; border-radius: 5px; font-size: 11px; font-weight: 800; transition: border-color .2s, color .2s; }
.contact-channels a:hover { color: white; border-color: var(--orange); }
.contact-channels a span { display: inline-grid; place-items: center; width: 19px; height: 19px; color: var(--orange); border: 1px solid var(--orange); border-radius: 50%; font-size: 11px; }
.inquiry-form { padding: 34px; color: var(--ink); background: white; border-radius: 8px; box-shadow: 0 30px 70px rgba(0,0,0,.2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.inquiry-form label { display: block; margin-bottom: 18px; color: var(--navy); font-size: 12px; font-weight: 800; }
.inquiry-form label > span { display: block; margin-bottom: 8px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea { width: 100%; color: var(--ink); background: #fafbfc; border: 1px solid #ccd2d8; border-radius: 4px; padding: 13px 14px; outline: none; transition: border-color .2s, box-shadow .2s; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(240,100,25,.14); }
.inquiry-form textarea { resize: vertical; }
.channel-picker { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 18px; padding: 0; border: 0; }
.channel-picker legend { width: 100%; margin-bottom: 8px; color: var(--navy); font-size: 12px; font-weight: 800; }
.channel-picker label { margin: 0; }
.channel-picker input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.channel-picker label span { display: inline-flex; align-items: center; min-height: 38px; margin: 0; padding: 0 14px; color: var(--navy); background: white; border: 1px solid #ccd2d8; border-radius: 4px; cursor: pointer; }
.channel-picker input:checked + span { color: white; background: var(--navy); border-color: var(--navy); }
.channel-picker input:focus-visible + span { box-shadow: 0 0 0 3px rgba(240,100,25,.22); }
.button-full { width: 100%; }
.form-note { margin: 11px 0 0; color: var(--muted); text-align: center; font-size: 11px; }

.site-footer { color: white; background: #041224; border-top: 3px solid var(--orange); }
.footer-main { min-height: 180px; display: grid; grid-template-columns: .8fr 1fr 1.1fr; align-items: center; gap: 48px; }
.footer-main > p { color: #8796a4; font-size: 13px; line-height: 1.7; }
.footer-address { display: block; margin-top: 8px; color: #aeb9c4; }
.footer-main nav { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 22px; }
.footer-main nav a { color: #c2ccd5; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; padding-block: 20px; color: #66798b; border-top: 1px solid rgba(255,255,255,.1); font-size: 10px; letter-spacing: .08em; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

html[dir="rtl"] body { text-align: right; }
html[dir="rtl"] .header-inner, html[dir="rtl"] .hero-actions, html[dir="rtl"] .contact-channels, html[dir="rtl"] .footer-bottom { flex-direction: row-reverse; }
html[dir="rtl"] .site-nav { margin-left: 0; margin-right: auto; }
html[dir="rtl"] .button::after { content: "←"; margin-left: 0; margin-right: 18px; }
html[dir="rtl"] .button:hover::after { transform: translateX(-4px); }
html[dir="rtl"] .product-category-copy, html[dir="rtl"] .scenario, html[dir="rtl"] .process-list li, html[dir="rtl"] .about-copy, html[dir="rtl"] .inquiry-copy, html[dir="rtl"] .inquiry-form { direction: rtl; }
html[dir="rtl"] .brand-cn { letter-spacing: .08em; }

@media (max-width: 1050px) {
  .site-nav { gap: 18px; }
  .site-nav a { font-size: 12px; }
  .button-small { display: none; }
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .hero-media { min-height: 540px; }
  .product-category { grid-template-columns: 1fr; }
  .product-category-wide { grid-template-columns: 1fr; }
  .product-category figure { min-height: 310px; }
  .about-grid, .inquiry-grid { gap: 45px; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .header-inner { min-height: 70px; }
  .menu-toggle { display: block; order: 3; margin-left: auto; }
  .site-nav { position: absolute; inset: 70px 0 auto; display: none; flex-direction: column; gap: 0; padding: 10px 16px 22px; background: var(--navy); border-top: 1px solid rgba(255,255,255,.12); }
  .site-nav.open { display: flex; }
  .site-nav a { min-height: auto; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .header-actions { margin-left: auto; }
  .hero { min-height: auto; }
  .hero::before { display: none; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 64px 72px; }
  .hero h1 { font-size: clamp(45px, 12vw, 70px); }
  .hero-media { min-height: 460px; border-radius: 8px; order: -1; }
  .hero-media::after { display: none; }
  .hero-media img { transform: scale(1.04); }
  .hero-media-catalog { padding: 18px; }
  .hero-media-catalog img { transform: none; }
  .scroll-cue { display: none; }
  .section { padding: 82px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .product-categories { grid-template-columns: 1fr; }
  .product-category { grid-template-columns: 1.05fr .95fr; }
  .product-category-wide { grid-template-columns: 1.05fr .95fr; }
  .scenario div { grid-template-columns: 1fr; gap: 12px; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li:nth-child(2) { border-right: 0; }
  .process-list li:nth-child(3), .process-list li:nth-child(4) { border-top: 1px solid #cbd0d5; }
  .about-grid, .inquiry-grid { grid-template-columns: 1fr; }
  .about-media { height: 520px; }
  .footer-main { grid-template-columns: 1fr; gap: 25px; padding-block: 50px; }
  .footer-main nav { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .brand-latin { font-size: 22px; }
  .brand-cn { font-size: 9px; }
  .language-control select { width: 126px; max-width: 126px; }
  .header-inner { gap: 12px; }
  .hero-grid { padding-top: 30px; }
  .hero-media { min-height: 330px; }
  .hero h1 { font-size: 44px; }
  .lead { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .section-heading h2, .about-copy h2, .inquiry-copy h2 { font-size: 38px; }
  .product-category { grid-template-columns: 1fr; }
  .product-category-wide { grid-template-columns: 1fr; }
  .product-category figure { min-height: 320px; }
  .product-category figure.product-gallery-two { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; min-height: 580px; }
  .product-category-copy { padding: 28px 24px 34px; }
  .scenario { grid-template-columns: 58px 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li:not(:first-child) { min-height: 0; padding: 28px 0; border-right: 0; border-top: 1px solid #cbd0d5; }
  .about-media { height: 400px; }
  .inquiry-form { padding: 22px 18px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}

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