:root {
  --warm-white: #f7f8fa;
  --paper: #ffffff;
  --navy: #0d1b2a;
  --blue: #173a68;
  --bright-blue: #236bc4;
  --gold: #c9a46b;
  --silver: #d9dee5;
  --ink: #20252b;
  --muted: #68727e;
  --line: rgba(13, 27, 42, 0.12);
  --display: "SF Pro Display", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --utility: "Avenir Next", Avenir, "Helvetica Neue", sans-serif;
  --shell: min(1320px, calc(100vw - 96px));
  --section-space: clamp(110px, 11vw, 180px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--warm-white); font-family: var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 20; opacity: .025; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E"); }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(35, 107, 196, .38); outline-offset: 4px; }
.page-shell { width: var(--shell); margin-inline: auto; }
.section { padding-block: var(--section-space); }
.skip-link { position: fixed; left: 20px; top: -80px; z-index: 200; padding: 12px 18px; border-radius: 4px; color: #fff; background: var(--navy); transition: top .2s; }
.skip-link:focus { top: 20px; }

/* Navigation */
.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 88px; transition: background .4s ease, box-shadow .4s ease, backdrop-filter .4s ease; }
.site-header.is-scrolled, .site-header.menu-open { background: rgba(247, 248, 250, .86); backdrop-filter: blur(18px) saturate(140%); box-shadow: 0 1px rgba(13, 27, 42, .08); }
.nav-shell { width: var(--shell); height: 100%; margin-inline: auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 34px; }
.brand { justify-self: start; display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: 42px; height: 42px; }
.brand span { display: grid; gap: 2px; }
.brand strong { color: var(--navy); font-size: 15px; line-height: 1.15; letter-spacing: .06em; }
.brand small { color: #76808c; font-family: var(--utility); font-size: 8px; font-weight: 600; letter-spacing: .12em; }
.desktop-nav { display: flex; align-items: center; gap: clamp(24px, 3vw, 48px); }
.desktop-nav a { position: relative; padding: 11px 0; color: #3e4752; font-size: 14px; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 4px; height: 1px; background: var(--blue); transition: right .3s ease; }
.desktop-nav a:hover::after { right: 0; }
.nav-cta { justify-self: end; display: inline-flex; align-items: center; gap: 24px; padding: 12px 18px 12px 20px; border: 1px solid rgba(13, 27, 42, .2); border-radius: 3px; color: var(--navy); font-size: 13px; transition: color .25s, background .25s, border-color .25s; }
.nav-cta:hover { color: #fff; background: var(--navy); border-color: var(--navy); }
.menu-toggle, .mobile-nav { display: none; }

/* Shared type and motion */
.eyebrow { margin: 0 0 26px; display: flex; align-items: center; gap: 12px; color: var(--blue); font-family: var(--utility); font-size: 11px; font-weight: 650; letter-spacing: .22em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 1px; background: currentColor; }
.eyebrow-light { color: #cbd6e2; }
.section-head { margin-bottom: clamp(56px, 7vw, 96px); display: grid; grid-template-columns: 1.15fr .65fr; align-items: end; gap: 80px; }
.section-head h2, .cases-head h2, .route-head h2 { margin: 0; color: var(--navy); font-family: var(--display); font-size: clamp(42px, 5.3vw, 76px); line-height: 1.06; letter-spacing: -.055em; font-weight: 620; }
.section-head > p, .route-head > p { max-width: 520px; margin: 0 0 5px; color: var(--muted); font-size: 17px; line-height: 1.9; }
.reveal { opacity: 0; transform: translateY(30px) scale(.99); transition: opacity .85s cubic-bezier(.22, 1, .36, 1), transform .85s cubic-bezier(.22, 1, .36, 1); }
.reveal[data-delay="1"] { transition-delay: .1s; }.reveal[data-delay="2"] { transition-delay: .2s; }.reveal[data-delay="3"] { transition-delay: .3s; }.reveal[data-delay="4"] { transition-delay: .4s; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Hero */
.hero { position: relative; min-height: 900px; height: 100svh; max-height: 1080px; overflow: hidden; isolation: isolate; background: radial-gradient(circle at 78% 46%, rgba(221, 232, 246, .5), transparent 32%), linear-gradient(135deg, #fff 0%, var(--warm-white) 48%, #f2f5f9 100%); }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 130px; z-index: -1; background: linear-gradient(to top, rgba(225, 232, 240, .4), transparent); clip-path: polygon(0 60%, 20% 32%, 44% 68%, 66% 38%, 82% 64%, 100% 22%, 100% 100%, 0 100%); }
.hero-lines { position: absolute; z-index: -1; inset: 0; width: 100%; height: 100%; overflow: hidden; fill: none; stroke: #89a9cd; stroke-width: 1; opacity: .18; }
.hero-lines circle { stroke-dasharray: 4 10; }
.hero-grid { height: 100%; padding-top: 100px; display: grid; grid-template-columns: 44% 56%; align-items: center; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 20px; }
.hero h1 { margin: 0; color: var(--navy); font-family: var(--display); font-size: clamp(62px, 6.5vw, 98px); font-weight: 620; letter-spacing: -.07em; line-height: .99; }
.hero h1 em { position: relative; color: var(--bright-blue); font-style: normal; }
.hero h1 em::after { content: ""; position: absolute; left: 2px; right: 0; bottom: 5px; z-index: -1; height: 13px; background: linear-gradient(90deg, rgba(35, 107, 196, .13), transparent); }
.hero-lede { max-width: 590px; margin: 34px 0 0; color: #46515d; font-size: clamp(17px, 1.35vw, 20px); line-height: 1.85; }
.hero-services { margin: 24px 0 0; color: #7a8490; font-size: 12px; letter-spacing: .035em; }
.hero-actions { margin-top: 40px; display: flex; gap: 14px; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; padding: 0 22px; border-radius: 3px; border: 1px solid transparent; font-size: 14px; transition: transform .3s ease, background .3s ease, border-color .3s ease, color .3s ease; }
.button:hover { transform: translateY(-3px); }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 14px 30px rgba(23, 58, 104, .16); }
.button-primary:hover { background: var(--navy); }
.button-quiet { border-color: rgba(13, 27, 42, .16); background: rgba(255, 255, 255, .42); }
.button-quiet:hover { border-color: rgba(13, 27, 42, .36); background: #fff; }
.brand-stage { --tilt-x: 0deg; --tilt-y: 0deg; position: relative; height: min(720px, 72vh); display: grid; place-items: center; perspective: 1000px; }
.stage-aura { position: absolute; width: 70%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(180, 206, 238, .28), rgba(247, 248, 250, 0) 68%); filter: blur(12px); }
.brand-emblem { width: min(650px, 49vw); height: auto; object-fit: contain; transform: rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transform-origin: center; filter: drop-shadow(0 28px 34px rgba(13, 27, 42, .14)); animation: emblem-float 8s ease-in-out infinite; transition: transform .35s ease-out; }
.hero-foot { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; align-items: center; gap: 20px; color: #89939e; font-family: var(--utility); font-size: 9px; letter-spacing: .18em; }
.hero-foot i { width: 72px; height: 1px; background: linear-gradient(90deg, var(--blue), var(--silver)); }
.hero-foot p { margin: 0 0 0 auto; font-family: var(--body); letter-spacing: .08em; }
@keyframes emblem-float { 50% { translate: 0 -7px; } }

/* Services */
.services { background: var(--warm-white); }
.service-grid { display: grid; grid-template-columns: 1.35fr 1.35fr 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-item { min-height: 300px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: transform .35s ease, border-color .35s ease, background .35s ease; }
.service-item:hover { z-index: 1; transform: translateY(-4px); border-color: rgba(23, 58, 104, .32); background: rgba(255, 255, 255, .66); }
.service-feature { grid-row: span 2; min-height: 600px; padding: 44px; display: flex; flex-direction: column; }
.service-no { color: #919aa4; font-family: var(--utility); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; }
.service-item svg { width: 36px; margin: 52px 0 42px; fill: none; stroke: var(--blue); stroke-width: 1.35; stroke-linecap: round; stroke-linejoin: round; transition: stroke .3s, transform .3s; }
.service-feature svg { width: 60px; margin-top: auto; }
.service-item:hover svg { stroke: var(--bright-blue); transform: translateX(3px); }
.service-item h3 { margin: 0 0 17px; color: var(--navy); font-size: 23px; font-weight: 560; letter-spacing: -.025em; }
.service-feature h3 { font-size: 36px; }
.service-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.service-feature p { max-width: 370px; font-size: 16px; }
.service-item a { margin-top: 28px; display: flex; justify-content: space-between; padding-top: 18px; border-top: 1px solid var(--line); color: var(--blue); font-size: 13px; }

/* Website showcase */
.showcase { overflow: hidden; color: #fff; background: var(--navy); }
.showcase-grid { min-height: 680px; display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: clamp(70px, 8vw, 140px); }
.showcase-grid > *, .saas-grid > *, .systems-grid > *, .video-grid > * { min-width: 0; }
.showcase-copy h2, .systems-copy h2 { margin: 0; font-size: clamp(56px, 6vw, 82px); line-height: 1; letter-spacing: -.055em; font-weight: 560; }
.showcase-lede { margin: 28px 0; color: #b5c0cc; font-size: 19px; line-height: 1.8; }
.tag-list, .plain-list { margin: 32px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 9px; list-style: none; }
.tag-list li { padding: 9px 13px; border: 1px solid rgba(255, 255, 255, .16); color: #c8d0d8; font-size: 12px; }
.browser-frame { position: relative; width: 820px; border: 1px solid rgba(255, 255, 255, .18); background: #fff; box-shadow: 0 42px 90px rgba(0, 0, 0, .28); }
.browser-frame::after { content: ""; position: absolute; z-index: -1; right: -110px; bottom: -100px; width: 340px; height: 340px; border: 1px solid rgba(201, 164, 107, .18); border-radius: 50%; }
.browser-bar { height: 42px; padding: 0 15px; display: flex; align-items: center; color: #7f8a96; background: #f2f4f7; font-family: var(--utility); font-size: 9px; letter-spacing: .08em; }
.browser-bar > span { display: flex; gap: 6px; }.browser-bar i { width: 6px; height: 6px; border: 1px solid #99a4af; border-radius: 50%; }.browser-bar p { margin: auto; }.browser-bar em { font-style: normal; }
.browser-frame > img { width: 100%; aspect-ratio: 1.6; object-fit: cover; object-position: top; }

/* Mini app */
.miniapp { overflow: hidden; }
.phone-scene { position: relative; min-height: 640px; padding: 62px 0 42px; display: grid; grid-template-columns: 220px 1fr; align-items: center; gap: 54px; border-top: 1px solid var(--line); background: radial-gradient(circle at 64% 45%, rgba(219, 229, 241, .7), transparent 38%); }
.phone-note { padding-left: 24px; border-left: 1px solid var(--gold); }.phone-note strong { color: var(--navy); font-size: 17px; line-height: 1.5; }.phone-note p { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.phone-deck { min-width: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; align-items: center; }
.phone { position: relative; width: 100%; max-width: 250px; height: 530px; justify-self: center; padding: 8px 8px 17px; border: 0; border-radius: 32px; background: #0b1723; box-shadow: 0 18px 42px rgba(13, 27, 42, .14); overflow: hidden; }
.phone-top { position: absolute; z-index: 8; top: 13px; left: 50%; width: 66px; height: 19px; transform: translateX(-50%); border-radius: 20px; background: #0c1825; }.phone-top i { position: absolute; right: 13px; top: 7px; width: 4px; height: 4px; border-radius: 50%; background: #496178; }
.mini-screen { position: relative; height: 100%; overflow: hidden; border-radius: 25px 25px 15px 15px; background: #f7f8fa; }
.mini-screen img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: top center; }

/* SaaS */
.saas { background: #edf1f5; }
.saas-grid { display: grid; grid-template-columns: .48fr 1.2fr; align-items: center; gap: 90px; }
.saas-copy h2, .video-copy h2, .route-head h2, .about-copy h2 { margin: 0; color: var(--navy); font-size: clamp(50px, 5.5vw, 78px); line-height: 1.08; letter-spacing: -.055em; font-weight: 600; }
.saas-copy > p:last-child, .video-copy > p { color: var(--muted); font-size: 18px; line-height: 1.8; }
.app-frame { position: relative; min-width: 0; height: 570px; display: grid; grid-template-columns: 70px 1fr; border: 1px solid rgba(13, 27, 42, .16); border-radius: 9px; background: #fff; box-shadow: 0 36px 80px rgba(13, 27, 42, .14); }
.app-sidebar { padding: 18px; display: flex; flex-direction: column; align-items: center; gap: 22px; border-right: 1px solid var(--line); background: #f8fafc; }.app-sidebar img { width: 34px; margin-bottom: 26px; }.app-sidebar i { width: 22px; height: 3px; border-radius: 4px; background: #c4ccd5; }.app-sidebar i:nth-child(2) { background: var(--blue); }
.app-window { min-width: 0; overflow: hidden; }.app-bar { height: 68px; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); color: var(--navy); font-size: 14px; }.app-bar i { width: 28px; height: 28px; border-radius: 50%; background: #dce3eb; }.app-window img { width: 100%; height: calc(100% - 68px); object-fit: cover; object-position: top left; opacity: .92; }
.float-chip { position: absolute; padding: 11px 15px; border: 1px solid rgba(13, 27, 42, .13); border-radius: 3px; color: var(--blue); background: rgba(255, 255, 255, .9); box-shadow: 0 10px 25px rgba(13, 27, 42, .08); font-size: 12px; opacity: 0; transform: translateY(10px); }
.is-visible .float-chip { opacity: 1; transform: none; transition: opacity .5s, transform .5s; }.chip-a { left: -45px; top: 95px; }.chip-b { right: -25px; top: 155px; }.chip-c { left: -20px; bottom: 100px; }.chip-d { right: -35px; bottom: 52px; }.chip-b { transition-delay: .12s !important; }.chip-c { transition-delay: .24s !important; }.chip-d { transition-delay: .36s !important; }

/* Video */
.video-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(70px, 9vw, 150px); align-items: center; }
.plain-list { max-width: 390px; }.plain-list li { width: calc(50% - 5px); padding: 13px 0; border-bottom: 1px solid var(--line); color: #4b5662; font-size: 13px; }
.video-card { overflow: hidden; background: var(--navy); box-shadow: 0 32px 70px rgba(13, 27, 42, .16); }.video-card video { width: 100%; aspect-ratio: 16/9; object-fit: cover; background: #0a1420; }.video-meta { min-height: 84px; padding: 0 26px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 26px; color: #fff; }.video-meta span, .video-meta em { color: #9cabbb; font-family: var(--utility); font-size: 9px; letter-spacing: .12em; font-style: normal; }.video-meta p { margin: 0; font-size: 15px; }

/* Systems */
.systems { overflow: hidden; color: #fff; background: #10243c; }
.systems-grid { display: grid; grid-template-columns: .5fr 1fr; align-items: center; gap: 100px; }.systems-copy > p:last-child { max-width: 430px; color: #b4c0cd; font-size: 18px; line-height: 1.8; }
.system-map { position: relative; height: 520px; }.system-map::before { content: ""; position: absolute; inset: 9% 2%; border: 1px solid rgba(255, 255, 255, .05); border-radius: 50%; transform: rotate(-8deg); }.system-map svg { position: absolute; inset: 50% 0 auto; transform: translateY(-50%); overflow: visible; fill: var(--gold); }.flow-line { fill: none; stroke: #6d88a5; stroke-width: 1.2; stroke-dasharray: 720; stroke-dashoffset: 720; }.system-map.is-visible .flow-line { animation: draw-line 1.8s ease forwards; }.system-map.is-visible .flow-line:nth-child(2) { animation-delay: .2s; }.system-map.is-visible .flow-line:nth-child(3) { animation-delay: .4s; }.system-map.is-visible .flow-line:nth-child(4) { animation-delay: .6s; }
.map-node { position: absolute; width: 145px; min-height: 82px; padding: 16px 18px; display: grid; align-content: center; gap: 6px; border: 1px solid rgba(255, 255, 255, .18); background: rgba(11, 27, 45, .82); backdrop-filter: blur(10px); }.map-node small { color: #8096ad; font-size: 9px; letter-spacing: .18em; }.map-node strong { font-size: 14px; font-weight: 500; }.node-client { left: 1%; top: 42%; }.node-touch { left: 39%; top: 10%; }.node-order { left: 39%; bottom: 10%; }.node-core { right: 0; top: 42%; border-color: rgba(201, 164, 107, .48); }.node-data { right: -7%; top: 0; display: none; }
@keyframes draw-line { to { stroke-dashoffset: 0; } }

/* Global route */
.route-head { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 80px; }.route-head .eyebrow { grid-column: 1/-1; margin-bottom: -45px; }.route-track { position: relative; height: 360px; margin-top: 90px; }.route-track svg { position: absolute; inset: 30px 0 0; width: 100%; height: 230px; overflow: visible; }.route-line { fill: none; stroke: #8ca8c7; stroke-width: 1.4; stroke-dasharray: 1600; stroke-dashoffset: 1600; }.route-track.is-visible .route-line { animation: draw-line 2.4s .15s ease forwards; }
.route-track ol { position: absolute; inset: 0; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); list-style: none; }.route-track li { position: relative; display: grid; align-content: start; gap: 7px; }.route-track li:nth-child(odd) { padding-top: 77px; }.route-track li:nth-child(even) { padding-top: 186px; }.route-track li i { width: 12px; height: 12px; margin-bottom: 15px; border: 3px solid var(--warm-white); border-radius: 50%; background: var(--silver); box-shadow: 0 0 0 1px #a2b4c7; transition: background .5s, box-shadow .5s; }.route-track.is-visible li i { background: var(--blue); box-shadow: 0 0 0 1px var(--blue), 0 0 0 8px rgba(35, 107, 196, .08); }.route-track li:nth-child(2) i { transition-delay: .3s; }.route-track li:nth-child(3) i { transition-delay: .6s; }.route-track li:nth-child(4) i { transition-delay: .9s; }.route-track li:nth-child(5) i { transition-delay: 1.2s; }.route-track li:nth-child(6) i { transition-delay: 1.5s; }.route-track li span { color: #9aa4ae; font-family: var(--utility); font-size: 9px; }.route-track li strong { color: var(--navy); font-size: 14px; font-weight: 560; }

/* Cases */
.cases { padding-top: 80px; }.cases-head { margin-bottom: 110px; }.case-list { display: grid; gap: 150px; }.case-item { display: grid; grid-template-columns: 1.35fr .65fr; gap: clamp(70px, 9vw, 150px); align-items: center; }.case-reverse { grid-template-columns: .65fr 1.35fr; }.case-reverse .case-image { grid-column: 2; }.case-reverse .case-copy { grid-row: 1; grid-column: 1; }
.case-image { position: relative; display: block; overflow: hidden; background: #e4e8ed; }.case-image img { width: 100%; aspect-ratio: 1.6; object-fit: cover; object-position: top; transition: transform .7s cubic-bezier(.22, 1, .36, 1); }.case-image:hover img { transform: scale(1.02); }.case-image span { position: absolute; right: 18px; bottom: 18px; padding: 10px 14px; color: #fff; background: rgba(13, 27, 42, .86); backdrop-filter: blur(8px); font-size: 11px; }
.case-copy small { color: var(--blue); font-family: var(--utility); font-size: 10px; letter-spacing: .13em; }.case-copy h3 { margin: 18px 0 22px; color: var(--navy); font-size: clamp(32px, 3.4vw, 48px); line-height: 1.12; letter-spacing: -.04em; }.case-copy p { color: var(--muted); line-height: 1.9; }.case-copy ul { margin: 28px 0 0; padding: 20px 0 0; display: flex; flex-wrap: wrap; gap: 10px 24px; border-top: 1px solid var(--line); list-style: none; color: #606b77; font-size: 12px; }

/* Principles */
.principles { color: #fff; background: var(--navy); }.principles-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 130px; }.principles-title h2 { margin: 0; font-size: clamp(42px, 5vw, 72px); line-height: 1.18; letter-spacing: -.055em; font-weight: 560; }.principle-lines p { margin: 0; padding: 27px 0; border-bottom: 1px solid rgba(255, 255, 255, .14); color: #eff3f7; font-size: clamp(26px, 3vw, 43px); letter-spacing: -.04em; }.principle-lines p::before { content: "—"; margin-right: 22px; color: var(--gold); font-weight: 300; }.principle-lines small { display: block; max-width: 610px; margin-top: 38px; color: #a5b0bc; font-size: 14px; line-height: 1.9; }

/* Process */
.process-line { position: relative; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); list-style: none; }.process-line::before { content: ""; position: absolute; left: 3px; right: 3px; top: 48px; height: 1px; background: var(--silver); }.process-line li { position: relative; padding-right: 28px; }.process-line li span { color: #8a949e; font-family: var(--utility); font-size: 10px; letter-spacing: .14em; }.process-line li i { position: relative; z-index: 1; width: 11px; height: 11px; margin: 26px 0 30px; display: block; border: 3px solid var(--warm-white); border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 1px var(--blue); }.process-line li:nth-child(3) i { background: var(--gold); box-shadow: 0 0 0 1px var(--gold), 0 0 0 8px rgba(201, 164, 107, .1); }.process-line h3 { margin: 0 0 10px; color: var(--navy); font-size: 18px; }.process-line p { margin: 0; color: var(--muted); font-size: 13px; }

/* About */
.about { display: grid; grid-template-columns: .75fr 1.25fr; align-items: center; gap: 130px; border-top: 1px solid var(--line); }.about-mark { height: 390px; display: flex; align-items: center; justify-content: center; gap: 34px; color: var(--navy); background: linear-gradient(145deg, #edf2f7, #fff); font-family: var(--display); font-size: 92px; font-weight: 600; }.about-mark i { width: 1px; height: 120px; transform: rotate(28deg); background: var(--gold); }.about-copy > p:not(.eyebrow) { max-width: 650px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 1.95; }

/* Contact and footer */
.contact { position: relative; overflow: hidden; color: #fff; background: #0a1b2e; }
.contact::before { content: ""; position: absolute; inset: auto -14vw -34vw auto; width: 60vw; aspect-ratio: 1; border: 1px solid rgba(201, 164, 107, .1); border-radius: 50%; pointer-events: none; }
.contact-grid { position: relative; display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: clamp(70px, 8vw, 120px); }
.contact-copy h2 { margin: 0; font-size: clamp(52px, 5.6vw, 78px); line-height: 1.05; letter-spacing: -.06em; font-weight: 560; }
.contact-copy > p:not(.eyebrow) { max-width: 540px; margin: 30px 0 0; color: #aebbc8; font-size: 18px; line-height: 1.8; }
.contact-actions { margin-top: 42px; display: flex; align-items: center; gap: 30px; }
.button-gold { color: var(--navy); background: var(--gold); }
.button-gold:hover { background: #dab77c; }
.text-link { color: #c7d1dc; font-size: 13px; }
.contact-card { min-width: 0; display: grid; grid-template-columns: minmax(220px, .78fr) minmax(260px, 1fr); border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .035); box-shadow: 0 32px 80px rgba(0, 0, 0, .16); }
.wechat-contact { margin: 0; padding: 22px; border-right: 1px solid rgba(255, 255, 255, .12); background: rgba(255, 255, 255, .025); }
.wechat-contact img { width: 100%; height: auto; max-height: 500px; object-fit: contain; background: #0878e5; }
.wechat-contact figcaption { padding: 18px 2px 0; display: grid; gap: 5px; }
.wechat-contact figcaption strong { font-size: 15px; font-weight: 560; }
.wechat-contact figcaption span { color: #8fa0b2; font-size: 11px; line-height: 1.6; }
.contact-details { min-width: 0; padding: clamp(28px, 3.2vw, 44px); display: flex; flex-direction: column; justify-content: center; }
.contact-kicker { margin: 0 0 14px; color: var(--gold); font-family: var(--utility); font-size: 9px; font-weight: 650; letter-spacing: .2em; }
.contact-details h3 { margin: 0 0 34px; font-size: clamp(24px, 2.3vw, 34px); font-weight: 520; letter-spacing: -.035em; }
.contact-method { position: relative; min-width: 0; padding: 19px 0 20px; display: grid; gap: 8px; border-top: 1px solid rgba(255, 255, 255, .14); transition: border-color .25s, color .25s; }
.contact-method:last-of-type { border-bottom: 1px solid rgba(255, 255, 255, .14); }
.contact-method:hover { border-color: rgba(201, 164, 107, .7); color: #f0cf96; }
.contact-method span { color: #8494a5; font-size: 10px; letter-spacing: .08em; }
.contact-method strong { overflow-wrap: anywhere; font-family: var(--utility); font-size: clamp(16px, 1.55vw, 21px); font-weight: 500; letter-spacing: .01em; }
.contact-method i { position: absolute; right: 0; top: 22px; color: #8292a3; font-size: 10px; font-style: normal; }
.contact-note { margin: 24px 0 0; color: #8292a3; font-size: 11px; line-height: 1.75; }
.site-footer { padding: 70px 0 22px; color: #c5cdd6; background: #071321; }.footer-grid { display: grid; grid-template-columns: 1.6fr .6fr .6fr; gap: 90px; }.brand-footer strong { color: #fff; }.footer-grid > div { display: grid; align-content: start; gap: 13px; }.footer-grid > div > strong { margin-bottom: 10px; color: #fff; font-size: 12px; }.footer-grid > div > a:not(.brand) { color: #8694a3; font-size: 12px; }.footer-grid > div > a:hover { color: #fff; }.footer-grid > div > p { color: #788797; font-size: 13px; }.footer-bottom { margin-top: 58px; padding-top: 22px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255, 255, 255, .1); color: #667587; font-size: 10px; }.footer-bottom i { font-style: normal; }

@media (max-width: 1180px) {
  :root { --shell: min(100% - 64px, 1100px); }
  .hero-grid { grid-template-columns: 48% 52%; }.hero h1 { font-size: clamp(58px, 7.4vw, 84px); }.brand-emblem { width: 53vw; }
  .service-grid { grid-template-columns: 1fr 1fr; }.service-feature { grid-row: auto; min-height: 470px; }.service-item { min-height: 300px; }
  .showcase-grid { grid-template-columns: .65fr 1.35fr; gap: 60px; }.browser-frame { width: 700px; max-width: 100%; }
  .saas-grid, .systems-grid { gap: 60px; }.app-frame { height: 500px; }
  .phone-note { display: none; }.phone-scene { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: .72fr 1.28fr; gap: 60px; }
  .contact-card { grid-template-columns: minmax(190px, .74fr) minmax(240px, 1fr); }
  .wechat-contact { padding: 18px; }
}

@media (max-width: 900px) {
  :root { --shell: calc(100% - 48px); --section-space: 110px; }
  .site-header { height: 76px; }.nav-shell { grid-template-columns: 1fr auto; }.desktop-nav, .nav-cta { display: none; }.menu-toggle { justify-self: end; width: 44px; height: 44px; padding: 0; display: grid; place-content: center; gap: 6px; border: 0; background: transparent; }.menu-toggle i { width: 22px; height: 1px; background: var(--navy); transition: transform .3s; }.menu-open .menu-toggle i:first-child { transform: translateY(3.5px) rotate(45deg); }.menu-open .menu-toggle i:last-child { transform: translateY(-3.5px) rotate(-45deg); }.mobile-nav { position: absolute; left: 0; right: 0; top: 76px; padding: 20px 24px 28px; display: grid; background: rgba(247, 248, 250, .97); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .3s, transform .3s, visibility .3s; }.mobile-nav a { padding: 14px 0; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); color: var(--navy); }.menu-open .mobile-nav { opacity: 1; visibility: visible; transform: none; }
  .hero { height: auto; min-height: 950px; }.hero-grid { padding: 140px 0 100px; display: flex; flex-direction: column; align-items: stretch; }.hero-copy { max-width: 680px; }.brand-stage { height: 480px; margin-top: 10px; }.brand-emblem { width: min(580px, 80vw); }.hero-foot { bottom: 22px; }.hero-foot p { display: none; }
  .section-head, .route-head { grid-template-columns: 1fr; gap: 24px; }.route-head .eyebrow { grid-column: auto; margin-bottom: 0; }
  .showcase-grid, .saas-grid, .video-grid, .systems-grid, .principles-grid, .about, .contact-grid { grid-template-columns: 1fr; }.showcase-grid { gap: 70px; }.browser-frame { width: 100%; }.phone-scene { min-height: 575px; padding-top: 42px; }.phone-deck { gap: 14px; }.phone { height: 490px; border-radius: 32px; }.mini-screen { border-radius: 25px; }
  .saas-grid { gap: 70px; }.app-frame { height: 520px; }.video-grid { gap: 70px; }
  .chip-a { left: 8px; }.chip-d { right: 8px; }
  .systems-grid { gap: 50px; }.system-map { width: 100%; max-width: 100%; margin-inline: auto; }
  .route-track { height: auto; margin-top: 65px; }.route-track svg { display: none; }.route-track ol { position: relative; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }.route-track li, .route-track li:nth-child(odd), .route-track li:nth-child(even) { min-height: 140px; padding: 25px; background: var(--warm-white); }.route-track li i { margin-bottom: 12px; }
  .case-list { gap: 100px; }.case-item, .case-reverse { grid-template-columns: 1fr; gap: 40px; }.case-reverse .case-image, .case-reverse .case-copy { grid-row: auto; grid-column: auto; }.case-reverse .case-image { order: 0; }.case-reverse .case-copy { order: 1; }
  .principles-grid { gap: 80px; }.process-line { grid-template-columns: 1fr; }.process-line::before { left: 5px; right: auto; top: 44px; bottom: 44px; width: 1px; height: auto; }.process-line li { min-height: 125px; padding-left: 42px; }.process-line li i { position: absolute; left: 0; top: 24px; }.about { gap: 70px; }.about-mark { height: 300px; }.contact-grid { gap: 70px; }.contact-card { max-width: 720px; }.footer-grid { grid-template-columns: 1.4fr .6fr .6fr; }
}

@media (max-width: 600px) {
  :root { --shell: calc(100% - 36px); --section-space: 88px; }
  .brand strong { font-size: 13px; }.brand small { font-size: 7px; }.brand img { width: 36px; height: 36px; }
  .hero { min-height: 820px; }.hero-grid { padding-top: 116px; justify-content: flex-start; }.hero .eyebrow { margin-bottom: 18px; }.hero h1 { font-size: clamp(48px, 14vw, 62px); line-height: 1.04; }.hero-lede { margin-top: 24px; font-size: 16px; line-height: 1.7; }.hero-services { display: none; }.hero-actions { margin-top: 28px; }.button { min-height: 50px; padding: 0 17px; gap: 20px; }.brand-stage { height: 340px; margin-top: -5px; }.brand-emblem { width: 370px; max-width: 102vw; }.hero-foot { display: none; }
  .eyebrow { margin-bottom: 18px; }.section-head { margin-bottom: 48px; }.section-head h2, .cases-head h2, .route-head h2 { font-size: 42px; }.section-head > p, .route-head > p { font-size: 15px; line-height: 1.75; }
  .service-grid { grid-template-columns: 1fr; }.service-feature, .service-item { min-height: 300px; padding: 28px; }.service-feature { min-height: 390px; }.service-feature svg { margin-top: auto; }.service-item svg { margin: 34px 0 32px; }.service-feature h3 { font-size: 30px; }
  .showcase-grid { min-height: 0; }.showcase-copy h2, .systems-copy h2 { font-size: 50px; }.showcase-lede { font-size: 17px; }.browser-frame { width: 118%; }.browser-frame > img { aspect-ratio: 1.35; }.browser-bar p { max-width: 165px; overflow: hidden; white-space: nowrap; }
  .miniapp { padding-bottom: 55px; }.phone-scene { width: calc(100vw - 18px); min-height: 0; margin-left: -9px; padding: 34px 0 18px; display: block; background: linear-gradient(180deg, rgba(219, 229, 241, .55), transparent); }.phone-deck { width: 100%; padding: 0 28px 18px; display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }.phone-deck::-webkit-scrollbar { display: none; }.phone { flex: 0 0 250px; width: 250px; height: 530px; scroll-snap-align: center; }
  .saas-grid { gap: 45px; }.saas-copy h2, .video-copy h2, .about-copy h2 { font-size: 46px; }.app-frame { height: 390px; grid-template-columns: 45px 1fr; }.app-sidebar { padding: 10px; gap: 16px; }.app-sidebar img { width: 27px; margin-bottom: 15px; }.app-sidebar i { width: 17px; }.app-bar { height: 52px; padding: 0 16px; }.app-window img { height: calc(100% - 52px); }.float-chip { padding: 8px 9px; font-size: 9px; }.chip-a { left: -8px; top: 70px; }.chip-b { right: -8px; top: 110px; }.chip-c { left: 3px; bottom: 55px; }.chip-d { right: -6px; bottom: 30px; }
  .plain-list li { width: 100%; }.video-meta { min-height: 100px; padding: 18px; grid-template-columns: 1fr auto; }.video-meta span { grid-column: 1/-1; }.systems-grid { gap: 30px; }.system-map { height: 510px; }.system-map svg { width: 700px; max-width: none; left: -175px; }.map-node { width: 126px; padding: 13px; }.node-client { left: 0; top: 42%; }.node-touch { left: 50%; top: 10%; transform: translateX(-50%); }.node-order { left: 50%; bottom: 10%; transform: translateX(-50%); }.node-core { right: 0; top: 42%; }
  .route-track ol { grid-template-columns: 1fr 1fr; }.route-track li, .route-track li:nth-child(odd), .route-track li:nth-child(even) { min-height: 124px; padding: 21px; }.cases { padding-top: 45px; }.cases-head { margin-bottom: 65px; }.case-list { gap: 80px; }.case-item { gap: 30px; }.case-image img { aspect-ratio: 1.32; }.case-copy h3 { font-size: 34px; }
  .principles-grid { gap: 60px; }.principles-title h2 { font-size: 41px; }.principle-lines p { padding: 22px 0; font-size: 25px; }.principle-lines p::before { margin-right: 10px; }.about { gap: 50px; }.about-mark { height: 230px; font-size: 64px; }.about-mark i { height: 80px; }.about-copy > p:not(.eyebrow) { font-size: 15px; }.contact-copy h2 { font-size: 46px; }.contact-copy > p:not(.eyebrow) { font-size: 15px; }.contact-actions { align-items: flex-start; flex-direction: column; }.contact-card { grid-template-columns: 1fr; }.wechat-contact { padding: 16px; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .12); }.wechat-contact img { max-height: none; }.contact-details { padding: 28px 22px 32px; }.contact-details h3 { margin-bottom: 24px; }.contact-method i { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }.footer-grid > div:first-child { grid-column: 1/-1; margin-bottom: 20px; }.footer-bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; transition-delay: 0ms !important; }
  .reveal { opacity: 1; transform: none; }
  .flow-line, .route-line { stroke-dashoffset: 0; }
  .float-chip { opacity: 1; transform: none; }
}