:root {
  --paper: #f3f3f0;
  --paper-2: #e7e7e1;
  --ink: #090909;
  --quiet: #6d6d68;
  --line: rgba(9, 9, 9, .22);
  --line-soft: rgba(9, 9, 9, .12);
  --light-line: rgba(255, 255, 255, .22);
  --pad: clamp(20px, 3vw, 48px);
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: "Arial Narrow", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --ease: cubic-bezier(.22, .72, .18, 1);
  --section-title-size: clamp(44px, 5.2vw, 80px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; background: var(--paper); }
body { margin: 0; overflow-x: clip; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; z-index: 999; inset: 0; pointer-events: none; opacity: .12; background-image: radial-gradient(rgba(0,0,0,.28) .45px, transparent .55px); background-size: 4px 4px; mix-blend-mode: multiply; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img, video, canvas { display: block; max-width: 100%; }
section[id] { scroll-margin-top: 78px; }
#film { scroll-margin-top: 138px; }
::selection { color: var(--paper); background: var(--ink); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 1000; left: 12px; top: 12px; padding: 10px 14px; color: var(--paper); background: var(--ink); font: 700 11px/1 var(--mono); transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.site-header { position: fixed; z-index: 100; inset: 0 0 auto; min-height: 68px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 22px; padding: 10px var(--pad); transition: background-color .28s ease, box-shadow .28s ease; }
.site-header.is-scrolled { background: rgba(243, 243, 240, .92); box-shadow: 0 10px 28px rgba(9,9,9,.055); backdrop-filter: blur(14px); }
.header-left { display: flex; align-items: center; gap: 13px; width: max-content; }
.brand { display: flex; align-items: center; width: max-content; }
.brand img { display: none; }
.brand span { font-family: "Songti SC", STSong, serif; font-size: 20px; font-weight: 800; letter-spacing: .1em; white-space: nowrap; }
.brand small { padding-left: 8px; border-left: 1px solid var(--line); font: 700 8px/1 var(--mono); letter-spacing: .18em; }
.language-toggle { width: 36px; height: 32px; padding: 0; border: 0; border-radius: 4px; color: var(--ink); background: rgba(9,9,9,.065); font: 800 9px/1 var(--mono); letter-spacing: .08em; cursor: pointer; transition: color .2s ease, background-color .2s ease; }
.language-toggle:hover { color: var(--paper); background: var(--ink); }
.language-toggle:focus-visible { outline: 1px solid var(--ink); outline-offset: 2px; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: clamp(17px, 2.1vw, 34px); font: 700 10px/1 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.desktop-nav a { position: relative; padding: 12px 0; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 6px; height: 1px; background: currentColor; transition: right .25s var(--ease); }
.desktop-nav a:hover::after { right: 0; }
.header-actions { justify-self: end; display: flex; align-items: center; }
.button { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 40px; padding: 0 18px; border: 0; border-radius: 3px; font: 700 10px/1 var(--mono); letter-spacing: .07em; text-transform: uppercase; transition: color .2s ease, background-color .2s ease, opacity .2s ease; }
.button:hover { opacity: .66; }
.button-dark { color: var(--paper); background: var(--ink); }
.button-ghost { background: rgba(9,9,9,.06); }
.button-light { color: var(--ink); background: var(--paper); }
.button-large { min-height: 54px; padding-inline: 28px; }
.menu-toggle { display: none; width: 44px; height: 40px; padding: 0; border: 0; border-radius: 3px; background: rgba(9,9,9,.065); cursor: pointer; }
.menu-toggle span { display: block; width: 16px; height: 1px; margin: 5px auto; background: var(--ink); transition: transform .25s ease; }
.menu-toggle.is-open span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle.is-open span:last-child { transform: translateY(-3px) rotate(-45deg); }
.mobile-menu { position: absolute; left: 0; right: 0; top: 100%; display: none; padding: 12px var(--pad) 26px; border-bottom: 1px solid var(--ink); background: var(--paper); }
.mobile-menu.is-open { display: grid; }
.mobile-menu a { display: grid; grid-template-columns: 50px 1fr; padding: 17px 0; border-bottom: 1px solid var(--line-soft); font-size: 18px; }
.mobile-menu a span { font: 700 9px/1.8 var(--mono); color: var(--quiet); }
.mobile-menu a b { font: inherit; font-weight: 500; }

.hero { position: relative; min-height: min(82svh, 860px); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 104px var(--pad) 54px; text-align: center; }
.hero-mark { position: relative; width: 96px; height: 96px; display: grid; place-items: center; margin-bottom: 22px; }
.hero > .hero-mark { --hero-canvas-size: 320px; width: 232px; height: 232px; margin: -24px 0 -2px; overflow: visible; will-change: transform; }
.hero-mark canvas { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; }
.hero > .hero-mark canvas { left: 50%; top: 50%; right: auto; bottom: auto; width: var(--hero-canvas-size); height: var(--hero-canvas-size); transform: translate(-50%, -50%); }
.hero-mark img { position: relative; width: 48px; height: 48px; object-fit: contain; filter: grayscale(1) contrast(1.45); }
.hero-code, .hero-sub { font: 700 9px/1.2 var(--mono); letter-spacing: .24em; }
.hero-code { margin: 0 0 18px; color: #74746f; }
.hero h1 { margin: 0; max-width: 1120px; font-family: "Helvetica Neue", var(--sans); font-size: clamp(42px, 5.6vw, 88px); font-weight: 800; line-height: 1; letter-spacing: -.052em; text-transform: uppercase; text-wrap: balance; }
.hero h1 span { display: block; }
.hero-cn { max-width: 820px; margin: 24px 0 0; color: #343432; font-size: clamp(14px, 1.15vw, 18px); font-weight: 600; line-height: 1.7; letter-spacing: .02em; text-wrap: balance; }
.hero h1 span, .products-intro h2 span, .work-heading h2 span, .final-cta h2 span { display: inline-block; }
.hero-sub { margin: 14px 0 0; color: #696965; letter-spacing: .13em; }
.hero-actions { display: flex; gap: 9px; margin-top: 24px; }
.scroll-index { position: absolute; right: var(--pad); bottom: 34px; display: grid; grid-template-columns: auto 54px auto; align-items: center; gap: 12px; font: 700 8px/1 var(--mono); letter-spacing: .12em; }
.scroll-index i { height: 1px; background: var(--ink); }

.film-shell { width: calc(100% - var(--pad) * 2); max-width: 1440px; margin: 0 auto 88px; overflow: visible; background: transparent; transform-origin: 50% 100%; }
.film-meta, .film-caption { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 38px; padding: 0 2px; background: transparent; font: 700 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.film-meta strong { text-align: center; font-size: 10px; }
.film-meta span:last-child { text-align: right; }
.film-frame { position: relative; overflow: hidden; aspect-ratio: 16/9; background: #090909; }
.film-frame video { display: block; width: 100%; height: 100%; object-fit: cover; }
.film-toggle { position: absolute; z-index: 3; right: 12px; bottom: 12px; display: flex; gap: 8px; padding: 9px 11px; border: 0; border-radius: 999px; color: #fff; background: rgba(0,0,0,.62); font: 700 8px/1 var(--mono); letter-spacing: .08em; cursor: pointer; backdrop-filter: blur(8px); }
.film-corners i { position: absolute; z-index: 2; width: 18px; height: 18px; border-color: rgba(255,255,255,.7); border-style: solid; }
.film-corners i:nth-child(1) { left: 14px; top: 14px; border-width: 1px 0 0 1px; }
.film-corners i:nth-child(2) { right: 14px; top: 14px; border-width: 1px 1px 0 0; }
.film-corners i:nth-child(3) { right: 14px; bottom: 14px; border-width: 0 1px 1px 0; }
.film-corners i:nth-child(4) { left: 14px; bottom: 14px; border-width: 0 0 1px 1px; }
.film-caption { grid-template-columns: minmax(0, 690px) 1fr; gap: 30px; min-height: auto; margin-top: 16px; padding-block: 0; }
.film-caption p { margin: 0; font: 500 14px/1.75 var(--sans); letter-spacing: 0; text-transform: none; }
.film-caption span { text-align: right; }

.section-pad, .proof { padding: 104px var(--pad); }
.section-rule { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 18px; margin-bottom: 60px; font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.section-rule i { height: 1px; background: var(--line); }
.rule-light i { background: var(--light-line); }
.proof { padding-bottom: 0; text-align: center; }
.proof .section-rule { text-align: left; }
.proof h2 { margin: 0; font-size: clamp(38px, 5.2vw, 82px); line-height: 1.04; letter-spacing: -.05em; }
.proof > p { max-width: 670px; margin: 24px auto 48px; color: var(--quiet); font-size: 15px; line-height: 1.8; }
.business-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 1260px; margin: 0 auto 34px; text-align: left; }
.business-pillars article { min-height: 218px; padding: 24px; border-radius: 5px; background: rgba(9,9,9,.045); }
.business-pillars span { font: 700 9px/1 var(--mono); color: var(--quiet); letter-spacing: .12em; }
.business-pillars h3 { margin: 68px 0 14px; font-size: clamp(20px, 1.8vw, 28px); letter-spacing: -.035em; }
.business-pillars p { max-width: 340px; margin: 0; color: var(--quiet); font-size: 13px; line-height: 1.72; }
.capability-rail { width: calc(100% + var(--pad) * 2); margin-left: calc(var(--pad) * -1); overflow: hidden; }
.capability-track { display: flex; align-items: center; width: max-content; min-height: 74px; animation: capability-marquee 30s linear infinite; }
.capability-track span { padding: 0 34px; font-size: clamp(18px, 2vw, 30px); font-weight: 700; letter-spacing: -.03em; white-space: nowrap; }
.capability-track i { font-style: normal; font-size: 17px; }

.approach { padding-top: 118px; }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, .5fr); gap: clamp(46px, 8vw, 120px); align-items: end; }
.statement-grid h2 { margin: 0; font-size: clamp(50px, 7vw, 108px); line-height: .94; letter-spacing: -.06em; }
.statement-grid h2 span { display: block; }
.statement-grid h2 span:nth-child(3) { margin-top: .14em; }
.statement-copy { padding-bottom: 8px; }
.statement-copy .cn-heading { margin: 0 0 20px; font-size: clamp(22px, 2vw, 31px); font-weight: 700; letter-spacing: -.035em; }
.statement-copy > p:not(.cn-heading) { margin: 0; color: var(--quiet); font-size: 15px; line-height: 1.85; }
.text-link { display: inline-flex; justify-content: space-between; gap: 28px; margin-top: 36px; padding: 0 0 10px; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 700; }
.fde-process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 88px; }
.fde-process article { min-height: 242px; padding: 22px; background: rgba(9,9,9,.035); }
.fde-process article:first-child { padding-left: 22px; }
.fde-process article:last-child { border-right: 0; }
.fde-process article > span, .fde-process article > b { font: 700 9px/1 var(--mono); letter-spacing: .1em; }
.fde-process article > b { float: right; color: var(--quiet); }
.fde-process h3 { margin: 78px 0 14px; font-size: 22px; letter-spacing: -.035em; }
.fde-process p { max-width: 250px; margin: 0; color: var(--quiet); font-size: 13px; line-height: 1.7; }

.products { color: var(--paper); background: var(--ink); }
.products-intro { min-height: min(62svh, 760px); display: flex; flex-direction: column; justify-content: flex-end; }
.products-intro .section-rule { width: 100%; margin-bottom: auto; }
.products-intro h2 { margin: 0; max-width: 1240px; font-size: clamp(44px, 5.2vw, 80px); line-height: .99; letter-spacing: -.054em; }
.products-intro > p { max-width: 570px; margin: 28px 0 0 auto; color: #a9a9a3; font-size: 15px; line-height: 1.8; }
.product-panel { min-height: 78svh; display: grid; grid-template-columns: minmax(330px, .75fr) minmax(520px, 1.25fr); gap: clamp(42px, 6vw, 90px); align-items: center; padding: 72px var(--pad); }
.product-copy { max-width: 500px; }
.product-number, .product-code { font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.product-number { padding-bottom: 16px; border-bottom: 1px solid var(--light-line); }
.product-code { margin: 40px 0 18px; color: #91918b; }
.product-copy h3 { margin: 0; font-size: clamp(42px, 4.7vw, 70px); line-height: 1.06; letter-spacing: -.05em; }
.product-copy > p:not(.product-code) { max-width: 480px; margin: 30px 0 0; color: #b3b3ad; font-size: 15px; line-height: 1.8; }
.product-copy ul { display: grid; gap: 0; margin: 34px 0; padding: 0; border-top: 1px solid var(--light-line); list-style: none; }
.product-copy li { display: flex; justify-content: space-between; padding: 13px 0; border-bottom: 1px solid var(--light-line); font: 700 10px/1.2 var(--mono); letter-spacing: .06em; }
.product-copy li::after { content: "+"; color: #777; }
.product-ui { position: relative; min-height: min(560px, 67svh); overflow: hidden; border-radius: 10px; background: #101010; box-shadow: 0 28px 80px rgba(0,0,0,.38), inset 0 1px rgba(255,255,255,.04); }
.product-ui::before { content: ""; position: absolute; inset: 0; opacity: .38; background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px); background-size: 34px 34px; mask-image: linear-gradient(to bottom, #000, transparent 92%); }
.product-visual { min-height: 0; aspect-ratio: 3/2; border-radius: 6px; box-shadow: none; }
.product-visual-srm { aspect-ratio: 1587/991; }
.product-visual::before { z-index: 1; opacity: 1; background: linear-gradient(180deg, rgba(0,0,0,.28), transparent 23%, transparent 72%, rgba(0,0,0,.46)); mask-image: none; }
.product-visual > img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.product-visual:hover > img { transform: scale(1.015); }
.product-visual-label { position: absolute; z-index: 2; inset: 16px 18px auto; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #f2f2ec; font: 700 8px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.product-visual-label b { font: inherit; color: #a7a7a1; }
.product-video { aspect-ratio: 16/9; margin: 0; background: #050505; }
.product-video::before, .product-video .product-visual-label { pointer-events: none; }
.product-video > video { position: relative; z-index: 0; width: 100%; height: 100%; object-fit: contain; background: #050505; }
.ui-top { position: relative; z-index: 2; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; min-height: 50px; padding: 0 16px; border-bottom: 1px solid var(--light-line); font: 700 8px/1 var(--mono); letter-spacing: .1em; }
.ui-top i { height: 1px; background: var(--light-line); }
.ui-top b { color: #b7ff9b; }
.query { position: relative; z-index: 2; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; margin: 36px; padding: 18px; border: 1px solid rgba(255,255,255,.28); background: rgba(0,0,0,.52); }
.query span { font: 700 8px/1 var(--mono); color: #8b8b85; }
.query p { margin: 0; font-size: clamp(16px, 2vw, 25px); }
.metric-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); margin: 0 36px; border: 1px solid var(--light-line); }
.metric-grid div { min-height: 126px; padding: 18px; border-right: 1px solid var(--light-line); }
.metric-grid div:last-child { border-right: 0; }
.metric-grid small, .metric-grid strong { display: block; }
.metric-grid small { color: #898983; font: 700 8px/1 var(--mono); }
.metric-grid strong { margin-top: 42px; font-size: 15px; }
.metric-grid i { display: block; width: var(--w); height: 2px; margin-top: 16px; background: #fff; }
.data-chart { position: absolute; z-index: 2; left: 36px; right: 36px; bottom: 36px; height: 180px; display: flex; align-items: flex-end; gap: 9px; border-bottom: 1px solid rgba(255,255,255,.55); }
.data-chart span { flex: 1; height: var(--h); background: linear-gradient(#f1f1eb, #62625e); transform-origin: bottom; }
.knowledge-map { position: relative; z-index: 2; height: 370px; margin: 22px; }
.node { position: absolute; z-index: 2; display: grid; place-items: center; width: 74px; height: 74px; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; background: rgba(9,9,9,.9); font: 700 10px/1 var(--mono); }
.node.core { left: 50%; top: 50%; width: 116px; height: 116px; color: var(--ink); background: var(--paper); font-size: 18px; transform: translate(-50%, -50%); }
.node.n1 { left: 10%; top: 8%; }.node.n2 { right: 8%; top: 12%; }.node.n3 { left: 14%; bottom: 5%; }.node.n4 { right: 12%; bottom: 2%; }
.line { position: absolute; z-index: 1; left: 50%; top: 50%; width: 39%; height: 1px; background: rgba(255,255,255,.35); transform-origin: 0 50%; }
.line::after { content: ""; position: absolute; right: 0; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: #fff; }
.line.l1 { transform: rotate(213deg); }.line.l2 { transform: rotate(328deg); }.line.l3 { transform: rotate(145deg); }.line.l4 { transform: rotate(36deg); }
.citation { position: relative; z-index: 2; margin: -8px 34px 34px; padding: 20px; border: 1px solid var(--light-line); background: rgba(9,9,9,.72); }
.citation small { font: 700 8px/1 var(--mono); color: #92928c; letter-spacing: .1em; }
.citation p { margin: 14px 0 22px; font-size: 16px; }
.citation div { display: flex; flex-wrap: wrap; gap: 7px; }
.citation span { padding: 8px; border: 1px solid var(--light-line); font: 700 8px/1 var(--mono); }
.srm-route { position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; gap: clamp(10px, 2vw, 28px); margin: 54px 28px; }
.srm-route span { display: grid; place-items: center; width: 86px; height: 86px; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; font-size: 13px; }
.srm-route i { color: #6e6e69; font-style: normal; }
.supplier-list { position: relative; z-index: 2; margin: 0 36px; border-top: 1px solid var(--light-line); }
.supplier-list div { display: grid; grid-template-columns: 100px 1fr auto; align-items: center; min-height: 62px; border-bottom: 1px solid var(--light-line); font-size: 12px; }
.supplier-list b, .supplier-list em { font: 700 8px/1 var(--mono); font-style: normal; letter-spacing: .08em; }
.supplier-list em { color: #b7ff9b; }
.signal-line { position: absolute; left: 36px; right: 36px; bottom: 52px; height: 1px; background: var(--light-line); }
.signal-line i { display: block; width: 28%; height: 1px; background: #fff; box-shadow: 0 0 14px #fff; animation: signal 3s ease-in-out infinite alternate; }
.scheduling-ui { background: radial-gradient(circle at 78% 18%, rgba(196, 255, 147, .09), transparent 28%), #101010; }
.schedule-status { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); margin: 32px 34px 22px; border: 1px solid var(--light-line); }
.schedule-status > div { min-height: 104px; padding: 16px; border-right: 1px solid var(--light-line); }
.schedule-status > div:last-child { border-right: 0; }
.schedule-status small, .schedule-status strong, .schedule-status span { display: block; }
.schedule-status small, .schedule-status span { color: #85857f; font: 700 8px/1.25 var(--mono); letter-spacing: .07em; }
.schedule-status strong { margin: 15px 0 8px; font-size: clamp(22px, 2.5vw, 34px); line-height: 1; letter-spacing: -.045em; }
.schedule-status .status-word { font-size: clamp(16px, 1.8vw, 23px); letter-spacing: -.025em; }
.schedule-board { position: relative; z-index: 2; margin: 0 34px; border: 1px solid var(--light-line); background: rgba(4, 4, 4, .44); }
.schedule-head { display: grid; grid-template-columns: 76px repeat(5, 1fr); min-height: 38px; align-items: center; border-bottom: 1px solid var(--light-line); color: #74746f; font: 700 7px/1 var(--mono); letter-spacing: .08em; }
.schedule-head > * { text-align: center; }
.schedule-head b { color: #a0a09a; font: inherit; }
.schedule-lane { display: grid; grid-template-columns: 76px 1fr; align-items: center; min-height: 66px; border-bottom: 1px solid var(--light-line); }
.schedule-lane:last-child { border-bottom: 0; }
.schedule-lane > b { color: #a8a8a2; font: 700 8px/1 var(--mono); text-align: center; }
.schedule-track { position: relative; height: 34px; margin-right: 12px; background-image: linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 20% 100%; }
.schedule-track i { position: absolute; left: calc(var(--start) * 20%); top: 0; width: calc(var(--span) * 20% - 5px); height: 100%; display: flex; align-items: center; min-width: 42px; padding: 0 8px; overflow: hidden; border-radius: 2px; color: #080808; font: 800 7px/1 var(--mono); font-style: normal; letter-spacing: .04em; white-space: nowrap; }
.schedule-track .plan-a { background: #ecece6; }
.schedule-track .plan-b { background: #b7ff9b; }
.schedule-track .plan-c { color: #ecece6; background: #555650; }
.schedule-alert { position: relative; z-index: 2; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; margin: 22px 34px 32px; padding: 14px 16px; border-left: 2px solid #b7ff9b; background: rgba(183,255,155,.07); }
.schedule-alert span, .schedule-alert b { font: 700 7px/1 var(--mono); letter-spacing: .08em; }
.schedule-alert span { color: #b7ff9b; }
.schedule-alert p { margin: 0; color: #c4c4be; font-size: 11px; }
.schedule-alert b { color: #777771; }

.work { padding-top: 118px; }
.work-heading { display: grid; grid-template-columns: 1.35fr .65fr; gap: 70px; align-items: end; }
.work-heading h2 { margin: 0; font-size: clamp(52px, 7.4vw, 112px); line-height: .95; letter-spacing: -.058em; }
.work-heading p { max-width: 430px; margin: 0 0 6px; color: var(--quiet); font-size: 15px; line-height: 1.8; }
.work-heading strong { display: block; margin-bottom: 18px; color: var(--ink); font-size: 25px; line-height: 1.2; }
.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 56px 18px; margin-top: 86px; }
.scenario-card { min-width: 0; }
.scenario-image { position: relative; overflow: hidden; border-radius: 8px; aspect-ratio: 16/10; background: #cfcfca; }
.scenario-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 62%, rgba(0,0,0,.44)); }
.scenario-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.06); transition: filter .5s ease, transform 1s var(--ease); }
.scenario-card:hover img { filter: grayscale(0); transform: scale(1.025); }
.scenario-image span { position: absolute; z-index: 2; left: 15px; bottom: 14px; color: #fff; font: 700 9px/1 var(--mono); letter-spacing: .1em; }
.scenario-card h3 { margin: 24px 0 12px; font-size: 28px; letter-spacing: -.04em; }
.scenario-card > p { max-width: 520px; margin: 0; color: var(--quiet); font-size: 13px; line-height: 1.7; }

.company-brief { margin-top: 120px; }
.company-brief .section-rule { margin-bottom: 62px; }
.company-brief-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(480px, 1.1fr); gap: clamp(54px, 8vw, 120px); align-items: start; }
.company-story > p:first-child { margin: 0 0 32px; color: var(--quiet); font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.company-story h2 { margin: 0; font-size: clamp(40px, 4.6vw, 70px); line-height: .98; letter-spacing: -.052em; }
.company-story h2 span { display: inline-block; }
.company-story > p:last-child { max-width: 540px; margin: 30px 0 0; color: var(--quiet); font-size: 15px; line-height: 1.82; }
.service-stack { border-top: 1px solid var(--line); }
.service-stack article { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.service-stack article > span { padding-top: 5px; color: var(--quiet); font: 700 9px/1 var(--mono); }
.service-stack h3 { margin: 0 0 9px; font-size: 19px; letter-spacing: -.025em; }
.service-stack p { max-width: 520px; margin: 0; color: var(--quiet); font-size: 13px; line-height: 1.7; }
.tool-links { display: grid; grid-template-columns: minmax(160px, .65fr) repeat(3, 1fr); margin-top: 68px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.tool-links > span, .tool-links a { min-height: 64px; display: flex; align-items: center; }
.tool-links > span { color: var(--quiet); font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.tool-links a { justify-content: space-between; gap: 18px; padding: 0 18px; border-left: 1px solid var(--line); transition: color .22s ease, background-color .22s ease; }
.tool-links a:hover { color: var(--paper); background: var(--ink); }
.tool-links b { font-size: 12px; }
.tool-links i { font-style: normal; }

.final-cta { min-height: 76svh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 88px var(--pad); text-align: center; }
.final-mark { width: 76px; height: 76px; margin-bottom: 30px; }
.final-mark img { width: 58px; height: 58px; }
.final-cta > p { margin: 0 0 30px; font: 700 9px/1 var(--mono); letter-spacing: .15em; }
.final-cta h2 { margin: 0; font-size: clamp(46px, 6vw, 92px); line-height: .98; letter-spacing: -.052em; }
.final-cta > span { margin-top: 32px; color: var(--quiet); font-size: 15px; }
.final-cta .button { margin-top: 34px; }

.proof h2,
.statement-grid h2,
.products-intro h2,
.work-heading h2,
.company-story h2,
.final-cta h2 {
  font-size: var(--section-title-size);
  line-height: .98;
  letter-spacing: -.052em;
}

.site-footer { display: grid; grid-template-columns: minmax(360px, 1.8fr) repeat(3, 1fr); gap: 44px; padding: 54px var(--pad) 26px; color: var(--paper); background: #0a0a0a; }
.site-footer .brand span { color: var(--paper); }
.footer-brand p { margin: 34px 0 0; font-size: 13px; font-weight: 700; }
.footer-brand address { margin-top: 10px; color: #85857f; font-size: 11px; font-style: normal; }
.footer-qr-list { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; }
.footer-qr-list figure { width: 104px; margin: 0; }
.footer-qr-list img { width: 104px; height: 104px; padding: 5px; border-radius: 4px; background: #fff; object-fit: cover; }
.footer-qr-list figcaption { margin-top: 9px; color: #b2b2ac; font: 700 9px/1.4 var(--mono); letter-spacing: .04em; text-align: center; }
.site-footer nav { display: flex; flex-direction: column; align-items: flex-start; gap: 13px; font-size: 12px; }
.site-footer nav b { margin-bottom: 13px; color: #e4e4de; font: 700 9px/1 var(--mono); letter-spacing: .1em; }
.site-footer nav a { color: #85857f; }
.site-footer nav a:hover { color: var(--paper); }
.footer-bottom { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 28px; margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); color: #74746f; font: 700 8px/1.55 var(--mono); letter-spacing: .06em; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-legal a { transition: color .2s ease; }
.footer-legal a:hover { color: var(--paper); }

@keyframes capability-marquee { to { transform: translateX(-50%); } }
@keyframes signal { to { transform: translateX(250%); } }

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .header-actions .header-product { display: none; }
  .statement-grid, .work-heading { grid-template-columns: 1fr; }
  .statement-copy { max-width: 570px; margin-left: auto; }
  .company-brief-grid { grid-template-columns: 1fr; }
  .company-story { max-width: 720px; }
  .product-panel { grid-template-columns: 1fr; min-height: auto; padding-block: 100px; }
  .product-copy { max-width: 660px; }
  .product-ui { min-height: 600px; }
  .product-visual { min-height: 0; }
}

@media (max-width: 760px) {
  :root { --section-title-size: clamp(40px, 11.5vw, 64px); }
  .site-header { min-height: 64px; }
  .header-actions .button { min-height: 38px; padding-inline: 13px; }
  .brand small { display: none; }
  .header-left { gap: 9px; }
  .language-toggle { width: 32px; height: 30px; }
  .hero { min-height: min(80svh, 760px); padding: 88px 16px 48px; }
  .hero > .hero-mark { --hero-canvas-size: 260px; width: 188px; height: 188px; margin-top: -12px; }
  .hero-mark img { width: 46px; height: 46px; }
  .hero h1 { font-size: clamp(38px, 10.8vw, 60px); line-height: 1.02; }
  .hero-cn { max-width: 580px; font-size: 14px; line-height: 1.68; letter-spacing: 0; }
  .hero-sub { line-height: 1.6; }
  .hero-actions { width: 100%; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .scroll-index { display: none; }
  .film-shell { width: calc(100% - 28px); margin-bottom: 78px; }
  .film-meta { grid-template-columns: 1fr auto; min-height: 44px; }
  .film-meta strong { display: none; }
  .film-frame { margin: 0; }
  .film-caption { grid-template-columns: 1fr; padding: 18px 12px; }
  .film-caption span { text-align: left; }
  .section-pad, .proof { padding: 78px 18px; }
  .section-rule { margin-bottom: 44px; }
  .capability-rail { width: calc(100% + 36px); margin-left: -18px; }
  .capability-track { min-height: 72px; }
  .business-pillars { grid-template-columns: 1fr; gap: 9px; }
  .business-pillars article { min-height: 170px; padding: 20px; }
  .business-pillars h3 { margin-top: 44px; }
  .statement-grid h2 { font-size: var(--section-title-size); line-height: .98; }
  .statement-copy { margin-top: 50px; }
  .fde-process { grid-template-columns: 1fr 1fr; margin-top: 90px; }
  .fde-process article { min-height: 220px; padding: 20px; }
  .fde-process article:first-child { padding-left: 20px; }
  .fde-process article:nth-child(2) { border-right: 0; }
  .fde-process article:nth-child(n+3) { border-bottom: 0; }
  .fde-process h3 { margin-top: 82px; }
  .products-intro { min-height: min(60svh, 680px); }
  .products-intro h2 { font-size: var(--section-title-size); }
  .product-panel { padding: 64px 18px; gap: 48px; }
  .product-ui { min-height: 480px; }
  .product-visual { min-height: 0; }
  .query { margin: 22px; }
  .metric-grid { margin: 0 22px; }
  .metric-grid div { padding: 13px; }
  .data-chart { left: 22px; right: 22px; bottom: 24px; height: 145px; }
  .knowledge-map { height: 320px; margin: 12px; }
  .node { width: 62px; height: 62px; }.node.core { width: 94px; height: 94px; }
  .citation { margin-inline: 20px; }
  .srm-route { gap: 8px; margin: 46px 12px; }
  .srm-route span { width: 62px; height: 62px; font-size: 11px; }
  .supplier-list { margin: 0 20px; }
  .schedule-status { margin: 22px 22px 16px; }
  .schedule-board { margin-inline: 22px; }
  .schedule-alert { margin: 16px 22px 22px; }
  .scenario-grid { grid-template-columns: 1fr; gap: 62px; margin-top: 80px; }
  .work-heading h2 { font-size: var(--section-title-size); }
  .company-brief { margin-top: 90px; }
  .company-brief .section-rule { margin-bottom: 44px; }
  .company-story h2 { font-size: var(--section-title-size); }
  .service-stack { margin-top: 18px; }
  .tool-links { grid-template-columns: 1fr; margin-top: 52px; }
  .tool-links > span, .tool-links a { min-height: 56px; }
  .tool-links a { padding-inline: 0; border-left: 0; border-top: 1px solid var(--line); }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; margin-bottom: 25px; }
  .footer-qr-list { margin-top: 26px; }
  .site-footer nav:last-of-type { grid-column: 1 / -1; }
}

html[lang="en"] .hero-cn { max-width: 860px; line-height: 1.58; letter-spacing: .015em; }
html[lang="en"] .statement-grid h2 { letter-spacing: -.07em; }

@media (max-width: 480px) {
  .fde-process { grid-template-columns: 1fr; }
  .fde-process article { border-right: 0; }
  .product-ui { min-height: 430px; }
  .product-visual { min-height: 0; }
  .metric-grid strong { font-size: 12px; }
  .metric-grid div { min-height: 108px; }
  .citation div span:last-child { display: none; }
  .supplier-list div { grid-template-columns: 72px 1fr auto; }
  .schedule-status { margin: 18px 14px 14px; }
  .schedule-status > div { min-height: 82px; padding: 11px; }
  .schedule-status strong { margin-block: 10px 6px; font-size: 22px; }
  .schedule-status .status-word { font-size: 15px; }
  .schedule-status span { display: none; }
  .schedule-board { margin-inline: 14px; }
  .schedule-head { grid-template-columns: 58px repeat(5, 1fr); min-height: 32px; }
  .schedule-lane { grid-template-columns: 58px 1fr; min-height: 52px; }
  .schedule-track { height: 29px; margin-right: 7px; }
  .schedule-track i { min-width: 32px; padding-inline: 5px; font-size: 6px; }
  .schedule-alert { grid-template-columns: 1fr auto; margin: 14px; padding: 11px; }
  .schedule-alert span { display: none; }
  .schedule-alert p { font-size: 9px; line-height: 1.35; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer nav:last-of-type { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 10px; }
  .footer-legal { flex-direction: column; gap: 8px; }
}

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