@font-face {
  font-family: "IBM Plex Sans SC";
  src: url("https://raw.githubusercontent.com/IBM/plex/master/packages/plex-sans-sc/fonts/complete/woff2/hinted/IBMPlexSansSC-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans SC";
  src: url("https://raw.githubusercontent.com/IBM/plex/master/packages/plex-sans-sc/fonts/complete/woff2/hinted/IBMPlexSansSC-SemiBold.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("https://raw.githubusercontent.com/IBM/plex/master/packages/plex-mono/fonts/complete/woff2/IBMPlexMono-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  --paper: #e9ebe8;
  --surface: #f5f4f1;
  --ink: #263943;
  --muted: #5c6b72;
  --blue: #4f8ca4;
  --blue-dark: #386578;
  --blue-pale: #c7d8dd;
  --sage: #cfd8d3;
  --lavender: #dedbe2;
  --warm: #e2dad4;
  --night: #1f3038;
  --line: rgba(38, 57, 67, .18);
  --light-line: rgba(245, 244, 241, .18);
  --font-display: "IBM Plex Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "IBM Plex Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-utility: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --wrap: 1440px;
  --pad: clamp(22px, 4vw, 72px);
  --radius: 18px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --hero-size: clamp(3.75rem, 6vw, 6.7rem);
  --section-size: clamp(2.75rem, 4.3vw, 4.8rem);
}

html[lang="zh-CN"] {
  --hero-size: clamp(3.1rem, 4.7vw, 5.1rem);
  --section-size: clamp(2.45rem, 3.4vw, 3.75rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: var(--font-body); line-height: 1.7; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
figure { margin: 0; }
ul, ol { margin: 0; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--blue-dark); outline-offset: 4px; }
.wrap { width: min(calc(100% - var(--pad) * 2), var(--wrap)); margin-inline: auto; }
.section { padding: clamp(96px, 10vw, 154px) 0; scroll-margin-top: 82px; }
.skip-link { position: fixed; z-index: 1000; top: -80px; left: 20px; padding: 10px 18px; border-radius: 999px; color: white; background: var(--night); transition: top .2s; }
.skip-link:focus { top: 18px; }

.site-header { position: fixed; z-index: 50; inset: 0 0 auto; height: 88px; padding-inline: var(--pad); display: flex; align-items: center; gap: clamp(24px, 4vw, 64px); border-bottom: 1px solid transparent; transition: height .3s var(--ease), background .3s, border-color .3s, box-shadow .3s; }
.site-header.scrolled { height: 74px; border-color: var(--line); background: rgba(233,235,232,.92); box-shadow: 0 12px 40px rgba(38,57,67,.09); backdrop-filter: blur(18px); }
.brand { position: relative; z-index: 2; flex: none; }
.brand img { width: 224px; height: auto; }
.desktop-nav { display: flex; align-items: center; gap: clamp(18px, 2vw, 34px); margin-left: auto; }
.desktop-nav a { position: relative; color: var(--ink); font-size: .76rem; font-weight: 600; white-space: nowrap; }
.desktop-nav a::after { content: ""; position: absolute; inset: auto 0 -8px; height: 2px; background: var(--blue); transform: scaleX(0); transform-origin: right; transition: transform .3s var(--ease); }
.desktop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header-actions { display: flex; align-items: center; gap: 11px; }
.language-toggle { display: flex; gap: 4px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: rgba(245,244,241,.76); cursor: pointer; }
.language-toggle span { min-width: 28px; padding: 3px 7px; border-radius: 999px; color: var(--muted); font-family: var(--font-utility); font-size: .6rem; text-align: center; }
.language-toggle .active { color: white; background: var(--night); }
.nav-cta, .primary-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 1px solid var(--night); border-radius: 999px; color: white; background: var(--night); font-size: .73rem; font-weight: 600; transition: color .25s, background .25s, border-color .25s, transform .25s; }
.nav-cta:hover, .primary-button:hover { border-color: var(--blue-dark); color: var(--ink); background: var(--blue-pale); transform: translateY(-2px); }
.menu-toggle { display: none; position: relative; z-index: 2; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: rgba(245,244,241,.78); cursor: pointer; }
.menu-toggle span { position: absolute; left: 12px; width: 17px; height: 1px; background: var(--ink); transition: transform .2s, top .2s; }
.menu-toggle span:first-child { top: 16px; }
.menu-toggle span:last-child { top: 23px; }
.menu-toggle[aria-expanded="true"] span:first-child { top: 20px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { top: 20px; transform: rotate(-45deg); }
.mobile-nav { position: fixed; z-index: 1; inset: 0; padding: 110px var(--pad) 35px; color: var(--ink); background: rgba(233,235,232,.98); backdrop-filter: blur(20px); }
.mobile-nav a { display: block; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 1.55rem; line-height: 1.3; }

.hero { position: relative; min-height: 820px; height: 100svh; overflow: hidden; background: var(--sage); }
.hero-media { position: absolute; inset: 0 0 0 38%; background: url("assets/yuxiu-ppt-hero.png") center/cover no-repeat; filter: saturate(.62) contrast(1.04); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(233,235,232,1) 0%, rgba(233,235,232,.97) 32%, rgba(233,235,232,.72) 52%, rgba(31,48,56,.12) 76%), linear-gradient(0deg, rgba(31,48,56,.45), transparent 35%); }
.hero-grid { position: absolute; z-index: 1; inset: 0; opacity: .34; pointer-events: none; background-image: linear-gradient(rgba(79,140,164,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(79,140,164,.16) 1px, transparent 1px); background-size: 56px 56px; mask-image: linear-gradient(90deg, #000 0%, rgba(0,0,0,.45) 48%, transparent 75%); }
.hero-copy { position: absolute; z-index: 2; left: var(--pad); top: 46%; width: min(860px, 66vw); transform: translateY(-50%); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 27px; color: var(--blue-dark); font-family: var(--font-utility); font-size: .66rem; letter-spacing: .12em; }
.eyebrow i { width: 36px; height: 2px; background: var(--blue); }
.hero h1 { max-width: 15ch; margin: 0; font-size: var(--hero-size); font-weight: 400; line-height: 1.04; letter-spacing: -.035em; text-wrap: balance; }
html[lang="zh-CN"] .hero h1 { max-width: 15ch; line-height: 1.16; letter-spacing: -.012em; }
.hero h1 span, .section-heading h2 span, .split-heading h2 span, .system-copy h2 span, .readiness-intro h2 span, .contact-copy h2 span { color: var(--blue-dark); }
.hero-lead { max-width: 700px; margin: 30px 0 0; color: var(--muted); font-size: clamp(.93rem, 1.15vw, 1.08rem); }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 32px; }
.primary-button { min-height: 51px; padding-inline: 28px; }
.text-link { display: inline-block; padding-bottom: 4px; border-bottom: 1px solid var(--blue); color: var(--blue-dark); font-size: .75rem; font-weight: 600; transition: transform .2s; }
.text-link:hover { transform: translateX(4px); }
.hero-dashboard { position: absolute; z-index: 2; left: var(--pad); right: var(--pad); bottom: 30px; display: grid; grid-template-columns: minmax(500px,1fr) auto; align-items: end; gap: 32px; }
.evolution { min-height: 64px; display: grid; grid-template-columns: auto auto minmax(25px,1fr) auto auto minmax(25px,1fr) auto auto; align-items: center; gap: 11px; padding: 0 19px; border: 1px solid rgba(245,244,241,.2); border-radius: 12px; color: white; background: rgba(31,48,56,.76); backdrop-filter: blur(16px); }
.evolution span { color: var(--blue-pale); font-family: var(--font-utility); font-size: .6rem; }
.evolution strong { font-size: .72rem; font-weight: 400; white-space: nowrap; }
.evolution i { height: 1px; background: linear-gradient(90deg, var(--blue), rgba(199,216,221,.28)); }
.hero-metrics { display: grid; grid-template-columns: repeat(3, minmax(110px,1fr)); border: 1px solid var(--line); border-radius: 12px; background: rgba(233,235,232,.84); backdrop-filter: blur(16px); }
.hero-metrics article { min-height: 84px; padding: 14px 17px; }
.hero-metrics article + article { border-left: 1px solid var(--line); }
.hero-metrics strong { display: block; color: var(--blue-dark); font-family: var(--font-utility); font-size: 1.25rem; font-weight: 400; line-height: 1.1; }
.hero-metrics span { display: block; margin-top: 7px; color: var(--muted); font-size: .62rem; line-height: 1.4; }

.section-code, .card-label { margin: 0; color: var(--blue-dark); font-family: var(--font-utility); font-size: .62rem; letter-spacing: .13em; }
.section-heading { display: grid; grid-template-columns: 170px minmax(480px,1.15fr) minmax(260px,.55fr); gap: clamp(28px,5vw,76px); align-items: start; }
.section-heading h2, .split-heading h2, .system-copy h2, .readiness-intro h2, .contact-copy h2 { margin: 0; font-size: var(--section-size); font-weight: 400; line-height: 1.08; letter-spacing: -.025em; text-wrap: balance; }
html[lang="zh-CN"] .section-heading h2, html[lang="zh-CN"] .split-heading h2, html[lang="zh-CN"] .system-copy h2, html[lang="zh-CN"] .readiness-intro h2, html[lang="zh-CN"] .contact-copy h2 { line-height: 1.18; letter-spacing: -.01em; }
.section-heading > p:last-child, .split-heading > p { margin: 7px 0 0; color: var(--muted); font-size: .86rem; }
.value-grid { display: grid; grid-template-columns: repeat(4,1fr); margin-top: clamp(65px,7vw,100px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.value-card { min-height: 245px; padding: 24px 27px 34px 0; }
.value-card + .value-card { padding-left: 27px; border-left: 1px solid var(--line); }
.value-card > span, .industry-card > div > span, .process-line > li > span, .package > span { color: var(--blue); font-family: var(--font-utility); font-size: .64rem; }
.value-card h3 { margin: 70px 0 12px; font-size: 1.03rem; font-weight: 600; }
.value-card p { margin: 0; color: var(--muted); font-size: .77rem; }

.industries { background: var(--surface); }
.split-heading { display: grid; grid-template-columns: minmax(520px,1.25fr) minmax(280px,.55fr); gap: clamp(45px,9vw,150px); align-items: end; }
.split-heading .section-code { margin-bottom: 28px; }
.industry-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr 1.2fr; gap: 14px; margin-top: clamp(65px,7vw,105px); }
.industry-card { position: relative; min-height: 470px; overflow: hidden; border-radius: var(--radius); background: var(--night); }
.industry-card img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.72) contrast(1.02); transition: transform .7s var(--ease), filter .5s; }
.industry-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(31,48,56,.94) 0%, rgba(31,48,56,.25) 55%, transparent 78%); }
.industry-card:hover img { transform: scale(1.035); filter: saturate(.92) contrast(1.04); }
.industry-card > div { position: absolute; z-index: 1; inset: auto 24px 24px; color: white; }
.industry-card > div > span { color: #9ec7d7; }
.industry-card h3 { margin: 13px 0 7px; font-size: 1.2rem; font-weight: 400; }
.industry-card p { margin: 0; color: rgba(255,255,255,.72); font-size: .72rem; }

.system-section { color: #f3f4f2; background: var(--night); }
.system-grid { display: grid; grid-template-columns: 1fr .92fr; gap: clamp(50px,8vw,120px); align-items: center; }
.system-copy .section-code { margin-bottom: 30px; color: #9ec7d7; }
.system-copy h2 span { color: #9ec7d7; }
.system-copy > p:nth-of-type(2) { max-width: 680px; margin: 28px 0 0; color: rgba(245,244,241,.66); font-size: .86rem; }
.capability-layers { margin-top: 46px; border-top: 1px solid var(--light-line); }
.capability-layers article { padding: 20px 0; border-bottom: 1px solid var(--light-line); }
.capability-layers article > span { color: #9ec7d7; font-family: var(--font-utility); font-size: .58rem; letter-spacing: .1em; }
.capability-layers h3 { margin: 8px 0 5px; font-size: .98rem; font-weight: 600; }
.capability-layers p { margin: 0; color: rgba(245,244,241,.58); font-size: .72rem; }
.platform-visual { min-height: 620px; padding: clamp(28px,4vw,52px); display: flex; flex-direction: column; justify-content: center; border: 1px solid var(--light-line); border-radius: var(--radius); background: radial-gradient(circle at 60% 40%, rgba(79,140,164,.2), transparent 45%), rgba(255,255,255,.025); }
.platform-visual img { width: 115%; max-width: none; margin-left: -7%; object-fit: contain; }
.platform-visual figcaption { display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: start; margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--light-line); }
.platform-visual figcaption span { color: #9ec7d7; font-family: var(--font-utility); font-size: .58rem; letter-spacing: .1em; }
.platform-visual figcaption p { margin: 0; color: rgba(245,244,241,.62); font-size: .7rem; }

.motion-stage { margin-top: clamp(80px, 9vw, 130px); padding-top: 38px; border-top: 1px solid var(--light-line); }
.motion-stage-header { display: grid; grid-template-columns: 1.15fr .85fr auto; gap: clamp(28px, 5vw, 80px); align-items: end; margin-bottom: 32px; }
.motion-stage-header h3 { margin: 18px 0 0; color: var(--surface); font-size: clamp(2.2rem, 4vw, 4.4rem); font-weight: 400; line-height: 1.06; letter-spacing: -.025em; }
.motion-stage-header h3 span { display: block; color: #9ec7d7; }
.motion-stage-header > p { max-width: 580px; margin: 0; color: rgba(245,244,241,.62); font-size: .78rem; }
.motion-toggle { min-width: 122px; min-height: 42px; padding: 0 15px; border: 1px solid var(--light-line); border-radius: 999px; display: inline-flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--surface); background: rgba(245,244,241,.06); font-family: var(--font-utility); font-size: .59rem; cursor: pointer; transition: border-color .2s, background .2s; }
.motion-toggle:hover { border-color: #9ec7d7; background: rgba(158,199,215,.12); }
.motion-toggle i { position: relative; width: 9px; height: 11px; border-left: 2px solid #9ec7d7; border-right: 2px solid #9ec7d7; }
.motion-toggle[aria-pressed="true"] i { width: 0; height: 0; border: 0; border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-left: 9px solid #9ec7d7; }
.motion-canvas { position: relative; min-height: clamp(470px, 57vw, 780px); overflow: hidden; border: 1px solid var(--light-line); border-radius: var(--radius); background: #16262e; }
.motion-main { position: absolute; inset: 0; }
.motion-main::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(16,31,38,.72)); pointer-events: none; }
.motion-main img { width: 100%; height: 100%; object-fit: cover; }
.motion-main figcaption, .motion-inset figcaption { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 22px; display: flex; align-items: end; justify-content: space-between; gap: 20px; color: var(--surface); }
.motion-main figcaption span, .motion-inset figcaption span { color: #b9d7e2; font-family: var(--font-utility); font-size: .58rem; letter-spacing: .1em; }
.motion-main figcaption b, .motion-inset figcaption b { font-size: .8rem; font-weight: 400; }
.motion-inset { position: absolute; z-index: 3; right: 24px; top: 24px; width: min(44%, 590px); aspect-ratio: 1280 / 300; overflow: hidden; border: 1px solid rgba(31,48,56,.22); border-radius: 12px; background: white; box-shadow: 0 24px 60px rgba(8,20,27,.24); }
.motion-inset img { width: 100%; height: 100%; object-fit: cover; }
.motion-inset figcaption { inset: 12px 15px auto; align-items: center; }
.motion-inset figcaption span { color: var(--blue-dark); }
.motion-inset figcaption b { color: var(--ink); }
.motion-status { position: absolute; z-index: 4; right: 24px; bottom: 18px; margin: 0; color: rgba(245,244,241,.7); font-family: var(--font-utility); font-size: .55rem; }

.delivery { background: var(--sage); }
.process-line { position: relative; display: grid; grid-template-columns: repeat(5,1fr); margin-top: clamp(70px,8vw,115px); padding: 0; list-style: none; }
.process-line::before { content: ""; position: absolute; left: 0; right: 0; top: 5px; height: 2px; background: linear-gradient(90deg, var(--blue-dark), var(--blue), rgba(79,140,164,.18)); }
.process-line li { position: relative; padding: 37px 25px 0 0; }
.process-line li::before { content: ""; position: absolute; top: 0; left: 0; width: 11px; height: 11px; border: 2px solid var(--sage); border-radius: 50%; background: var(--blue-dark); transform: translateY(-4px); box-shadow: 0 0 0 1px var(--blue-dark); }
.process-line h3 { margin: 17px 0 8px; font-size: .98rem; font-weight: 600; }
.process-line p { margin: 0; color: var(--muted); font-size: .72rem; }

.readiness { background: var(--lavender); }
.readiness-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(55px,9vw,140px); align-items: start; }
.readiness-intro .section-code { margin-bottom: 30px; }
.readiness-intro > p:nth-of-type(2) { max-width: 570px; margin: 27px 0 0; color: var(--muted); font-size: .85rem; }
.compliance-note { display: flex; align-items: center; gap: 16px; margin-top: 42px; padding-top: 20px; border-top: 1px solid var(--line); }
.compliance-note span { padding: 7px 10px; border: 1px solid var(--blue-dark); border-radius: 6px; color: var(--blue-dark); font-family: var(--font-utility); font-size: .62rem; }
.compliance-note p { margin: 0; color: var(--muted); font-size: .72rem; }
.readiness-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.readiness-list article { min-height: 235px; padding: 27px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.readiness-list article > span { color: var(--blue-dark); font-family: var(--font-utility); font-size: .6rem; letter-spacing: .1em; }
.readiness-list h3 { margin: 42px 0 13px; font-size: 1rem; font-weight: 600; }
.readiness-list ul { padding: 0; list-style: none; color: var(--muted); font-size: .7rem; }
.readiness-list li + li { margin-top: 4px; }

.services { background: var(--surface); }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: clamp(70px,8vw,112px); }
.audience-card { min-height: 440px; padding: clamp(30px,4vw,55px); border-radius: var(--radius); }
.audience-card.operator { background: var(--blue-pale); }
.audience-card.oem { color: white; background: var(--night); }
.audience-card.oem .card-label { color: #9ec7d7; }
.audience-card h3 { margin: 80px 0 10px; font-size: clamp(1.8rem,3vw,3rem); font-weight: 400; letter-spacing: -.02em; }
.audience-card > p:nth-of-type(2) { max-width: 580px; margin: 0; color: var(--muted); font-size: .82rem; }
.audience-card.oem > p:nth-of-type(2) { color: rgba(255,255,255,.65); }
.audience-card ul { margin-top: 30px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.audience-card.oem ul { border-color: var(--light-line); }
.audience-card li { padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .72rem; }
.audience-card.oem li { border-color: var(--light-line); color: rgba(255,255,255,.68); }
.support-loop { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(50px,8vw,120px); align-items: center; margin-top: 14px; padding: clamp(34px,5vw,68px); border-radius: var(--radius); background: var(--warm); }
.support-loop h3 { max-width: 580px; margin: 24px 0 12px; font-size: clamp(1.7rem,2.8vw,2.8rem); font-weight: 400; line-height: 1.2; }
.support-loop div > p:last-child { margin: 0; color: var(--muted); font-size: .78rem; }
.support-loop ol { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; padding: 0; list-style: none; counter-reset: loop; }
.support-loop li { position: relative; min-height: 100px; padding: 18px; display: flex; align-items: end; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); font-size: .74rem; counter-increment: loop; }
.support-loop li::before { content: "0" counter(loop); position: absolute; top: 13px; left: 16px; color: var(--blue-dark); font-family: var(--font-utility); font-size: .56rem; }
.service-packages { display: grid; grid-template-columns: repeat(4,1fr); margin-top: clamp(65px,7vw,100px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.package { min-height: 250px; padding: 24px 25px 32px 0; }
.package + .package { padding-left: 25px; border-left: 1px solid var(--line); }
.package h3 { margin: 72px 0 10px; font-size: 1rem; font-weight: 600; }
.package p { margin: 0; color: var(--muted); font-size: .7rem; }
.package.featured { background: rgba(199,216,221,.38); }

.cases { background: var(--paper); }
.case-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: clamp(65px,7vw,105px); }
.case-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.case-card img { width: 100%; height: 330px; object-fit: cover; filter: saturate(.76) contrast(1.02); transition: transform .7s var(--ease), filter .5s; }
.case-card:hover img { transform: scale(1.025); filter: saturate(.98) contrast(1.03); }
.case-card > div { position: relative; min-height: 250px; padding: clamp(25px,3vw,42px); }
.case-card h3 { margin: 20px 0 11px; font-size: clamp(1.35rem,2.2vw,2.1rem); font-weight: 400; line-height: 1.25; }
.case-card div > p:not(.card-label) { margin: 0; color: var(--muted); font-size: .76rem; }
.case-featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1.2fr .8fr; }
.case-featured img { height: 100%; min-height: 510px; }
.case-featured > div { min-height: 510px; display: flex; flex-direction: column; justify-content: center; }
.case-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 42px; padding-top: 24px; border-top: 1px solid var(--line); }
.case-metrics span { display: block; }
.case-metrics b, .metric-card strong { display: block; color: var(--blue-dark); font-family: var(--font-utility); font-size: clamp(1.8rem,3vw,3rem); font-weight: 400; line-height: 1; }
.case-metrics small, .metric-card strong small { display: block; margin-top: 8px; color: var(--muted); font-family: var(--font-body); font-size: .62rem; line-height: 1.4; }
.metric-card strong { margin-top: 30px; }
.outcome-strip { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--blue-pale); }
.outcome-strip article { min-height: 125px; padding: 24px; }
.outcome-strip article + article { border-left: 1px solid var(--line); }
.outcome-strip b { display: block; color: var(--blue-dark); font-family: var(--font-utility); font-size: 1.55rem; font-weight: 400; }
.outcome-strip span { display: block; margin-top: 7px; color: var(--muted); font-size: .67rem; }

.contact { background: var(--warm); }
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(55px,9vw,140px); align-items: start; }
.contact-copy .section-code { margin-bottom: 30px; }
.contact-copy > p:nth-of-type(2) { max-width: 650px; margin: 27px 0 0; color: var(--muted); font-size: .86rem; }
.direct-contact { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 42px; }
.direct-contact a { padding: 18px 0; border-top: 1px solid var(--line); color: var(--ink); font-size: .77rem; }
.direct-contact span { display: block; margin-bottom: 7px; color: var(--blue-dark); font-family: var(--font-utility); font-size: .56rem; letter-spacing: .1em; }
.contact-form { padding: clamp(27px,4vw,46px); border: 1px solid var(--line); border-radius: var(--radius); background: rgba(245,244,241,.82); box-shadow: 0 28px 70px rgba(38,57,67,.1); }
.contact-form label { display: block; margin-bottom: 20px; color: var(--muted); font-size: .67rem; }
.contact-form label > span { display: block; margin-bottom: 5px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 11px 0; border: 0; border-bottom: 1px solid #9daaad; border-radius: 0; outline: 0; resize: vertical; color: var(--ink); background: transparent; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--blue-dark); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #8b999e; }
.submit-button { width: 100%; min-height: 52px; padding: 0 20px; border: 1px solid var(--night); border-radius: 999px; display: flex; align-items: center; justify-content: space-between; color: white; background: var(--night); cursor: pointer; transition: color .2s, background .2s, transform .2s; }
.submit-button:hover { color: var(--ink); background: var(--blue-pale); transform: translateY(-2px); }
.form-note, .form-status { margin: 10px 0 0; color: var(--muted); font-size: .61rem; }
.form-status { color: var(--blue-dark); }

.site-footer { padding: 65px 0 24px; border-top: 1px solid var(--line); background: var(--paper); }
.footer-main { display: grid; grid-template-columns: 1fr 1.1fr .9fr; align-items: end; gap: 40px; padding-bottom: 50px; }
.footer-main img { width: 220px; }
.footer-main p { margin: 0; color: var(--muted); font-family: var(--font-utility); font-size: .78rem; }
.footer-main > div { display: flex; justify-content: flex-end; gap: 25px; }
.footer-main a { color: var(--muted); font-size: .7rem; }
.footer-main a:hover { color: var(--blue-dark); }
.footer-bottom { padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; color: var(--muted); font-family: var(--font-utility); font-size: .57rem; letter-spacing: .08em; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .72s var(--ease), transform .72s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .hero { min-height: 900px; }
  .section-heading { grid-template-columns: 130px 1fr; }
  .section-heading > p:last-child { grid-column: 2; max-width: 650px; }
  .hero-dashboard { grid-template-columns: 1fr; gap: 10px; }
  .evolution { max-width: none; }
  .hero-metrics { position: static; width: 100%; }
  .industry-grid { grid-template-columns: 1fr 1fr; }
  .industry-card { min-height: 430px; }
  .system-grid { grid-template-columns: 1fr 1fr; gap: 50px; }
  .motion-stage-header { grid-template-columns: 1fr 1fr; }
  .motion-toggle { justify-self: start; }
  .readiness-grid { grid-template-columns: 1fr 1.25fr; gap: 50px; }
  .service-packages { grid-template-columns: 1fr 1fr; }
  .package:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .package:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 760px) {
  :root { --pad: 20px; --radius: 14px; --hero-size: clamp(2.65rem,11.5vw,3.55rem); --section-size: clamp(2.25rem,9.5vw,3rem); }
  html[lang="zh-CN"] { --hero-size: clamp(2.35rem,9.8vw,3rem); --section-size: clamp(2rem,8.4vw,2.65rem); }
  .section { padding: 88px 0; }
  .site-header { height: 72px; gap: 8px; }
  .site-header.scrolled { height: 66px; }
  .brand img { width: 164px; }
  .header-actions { margin-left: auto; gap: 7px; }
  .nav-cta { display: none; }
  .language-toggle span { min-width: 25px; }
  .hero { height: auto; min-height: 920px; padding: 132px var(--pad) 30px; display: flex; flex-direction: column; justify-content: flex-end; }
  .hero-media { inset: 0; background-position: 62% center; }
  .hero::after { background: linear-gradient(180deg, rgba(233,235,232,.92) 0%, rgba(233,235,232,.94) 48%, rgba(38,57,67,.72) 100%); }
  .hero-grid { mask-image: linear-gradient(180deg,#000,transparent 70%); }
  .hero-copy { position: relative; inset: auto; width: 100%; transform: none; margin-bottom: 42px; }
  .hero h1 { max-width: none; line-height: 1.1; }
  html[lang="zh-CN"] .hero h1 { max-width: none; line-height: 1.2; }
  .hero-lead { margin-top: 23px; color: #455861; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 16px; margin-top: 27px; }
  .hero-dashboard { position: relative; inset: auto; display: grid; gap: 10px; }
  .evolution { min-height: 58px; grid-template-columns: auto auto 1fr auto auto 1fr auto auto; padding-inline: 13px; }
  .evolution strong { font-size: .64rem; }
  .hero-metrics { position: static; width: 100%; }
  .hero-metrics article { min-height: 78px; padding: 12px; }
  .hero-metrics strong { font-size: 1.05rem; }
  .section-heading, .split-heading { grid-template-columns: 1fr; gap: 27px; }
  .section-heading > p:last-child { grid-column: 1; }
  .section-heading h2, .split-heading h2 { overflow-wrap: anywhere; }
  .value-grid { grid-template-columns: 1fr; margin-top: 58px; }
  .value-card { min-height: 190px; padding: 22px 0 28px; border-left: 0 !important; border-top: 1px solid var(--line); }
  .value-card:first-child { border-top: 0; }
  .value-card h3 { margin-top: 42px; }
  .industry-grid { grid-template-columns: 1fr; margin-top: 58px; }
  .industry-card { min-height: 400px; }
  .system-grid, .readiness-grid, .contact-grid { grid-template-columns: 1fr; gap: 58px; }
  .platform-visual { min-height: 460px; padding: 24px; }
  .platform-visual figcaption { grid-template-columns: 1fr; gap: 10px; }
  .motion-stage { margin-top: 72px; padding-top: 28px; }
  .motion-stage-header { grid-template-columns: 1fr; gap: 22px; }
  .motion-stage-header h3 { font-size: clamp(2rem, 9vw, 3rem); }
  .motion-canvas { min-height: 520px; }
  .motion-main img { object-position: 52% center; }
  .motion-inset { top: 18px; right: 18px; width: calc(100% - 36px); min-height: 132px; aspect-ratio: 1280 / 360; }
  .motion-main figcaption { left: 18px; right: 18px; bottom: 20px; align-items: flex-start; flex-direction: column; gap: 5px; }
  .motion-inset figcaption { display: none; }
  .motion-status { display: none; }
  .process-line { grid-template-columns: 1fr; margin-top: 62px; padding-left: 16px; }
  .process-line::before { inset: 0 auto 0 5px; width: 2px; height: auto; background: linear-gradient(180deg,var(--blue-dark),var(--blue),rgba(79,140,164,.18)); }
  .process-line li { padding: 0 0 42px 27px; }
  .process-line li::before { top: 5px; left: -16px; }
  .readiness-list { grid-template-columns: 1fr; }
  .readiness-list article { min-height: 210px; }
  .audience-grid { grid-template-columns: 1fr; margin-top: 60px; }
  .audience-card { min-height: 410px; padding: 30px 24px; }
  .audience-card h3 { margin-top: 58px; }
  .support-loop { grid-template-columns: 1fr; gap: 40px; padding: 30px 22px; }
  .support-loop ol { grid-template-columns: 1fr 1fr; }
  .service-packages { grid-template-columns: 1fr; margin-top: 58px; }
  .package { min-height: 210px; padding: 22px 0 28px; border-left: 0 !important; border-top: 1px solid var(--line); }
  .package:first-child { border-top: 0; }
  .package.featured { padding-inline: 18px; }
  .package h3 { margin-top: 50px; }
  .case-grid { grid-template-columns: 1fr; margin-top: 58px; }
  .case-featured { grid-column: auto; display: block; }
  .case-featured img, .case-card img { height: 280px; min-height: 0; }
  .case-featured > div, .case-card > div { min-height: 0; }
  .outcome-strip { grid-template-columns: 1fr; }
  .outcome-strip article + article { border-left: 0; border-top: 1px solid var(--line); }
  .direct-contact, .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-main > div { justify-content: flex-start; flex-wrap: wrap; }
  .footer-bottom { flex-wrap: wrap; gap: 12px 22px; }
}

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