@font-face{font-family:Oxygen;src:url('../assets/fonts/Oxygen-Regular-subset.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Oxygen;src:url('../assets/fonts/Oxygen-Light-subset.woff2') format('woff2');font-weight:300;font-display:swap}
@font-face{font-family:Raleway;src:url('../assets/fonts/Raleway-Variable-subset.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'Source Han Sans SC';src:url('../assets/fonts/SourceHanSansCN-Regular-subset.woff2') format('woff2');font-weight:400;font-display:swap}

:root{
  --night:#2b1c10;--deep:#1d120b;--heritage:#c3a368;--quiet:#d7b774;--porcelain:#f2ece0;
  --warm:#cec3b5;--teal:#466362;--sage:#7d938a;--mist:#d9ebe7;--white:#fff;
  --ink:#33271e;--muted:#6b5d51;--line:rgba(43,28,16,.13);--max:1240px;--header:78px;
  --ease:cubic-bezier(.22,1,.36,1);--shadow:0 22px 54px rgba(43,28,16,.12),0 4px 14px rgba(43,28,16,.07);
  --step--1:.854rem;--step-0:1rem;--step-1:1.618rem;--step-2:2.618rem;--step-3:4.236rem;--step-4:6.854rem;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--deep);overflow-x:hidden}body{margin:0;background:#fff;color:var(--ink);font-family:Raleway,Arial,sans-serif;font-size:var(--step-0);line-height:1.72;-webkit-font-smoothing:antialiased;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}button{font:inherit;color:inherit}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{font-family:Oxygen,Arial,sans-serif}h1{font-size:clamp(3.2rem,6.1vw,var(--step-4));font-weight:400;line-height:.98;letter-spacing:-.045em}h2{font-size:clamp(2.35rem,4.2vw,var(--step-3));font-weight:300;line-height:1.07;letter-spacing:-.035em}h3{font-size:clamp(1.55rem,2.4vw,var(--step-2));font-weight:300;line-height:1.13;letter-spacing:-.02em}h4{font-size:var(--step-1);font-weight:400;line-height:1.2}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:18px;z-index:200;background:var(--quiet);padding:10px 16px}.skip-link:focus{top:18px}.page-progress{position:fixed;top:0;right:0;width:3px;height:100vh;z-index:120;background:rgba(255,255,255,.07);pointer-events:none}.page-progress span{display:block;width:100%;height:0;background:var(--quiet)}

.site-header{height:var(--header);padding:0 clamp(22px,4vw,68px);display:grid;grid-template-columns:minmax(180px,1fr) auto minmax(190px,1fr);align-items:center;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;transition:height .35s var(--ease),box-shadow .35s var(--ease);backdrop-filter:blur(14px)}.site-header.scrolled{height:66px;box-shadow:0 12px 30px rgba(43,28,16,.08)}.brand{width:177px}.brand img{width:100%}.site-nav{display:flex;gap:clamp(18px,2vw,34px);align-items:center;font-size:.78rem;font-weight:570}.site-nav a{position:relative;padding:11px 0}.site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:4px;height:1px;background:var(--heritage);transition:right .3s var(--ease)}.site-nav a:hover::after,.site-nav a:focus-visible::after,.site-nav a[aria-current=page]::after{right:0}.header-actions{justify-self:end;display:flex;align-items:center;gap:15px}.language{border:0;background:transparent;padding:8px;cursor:pointer;font-size:.75rem}.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:10px}.menu-toggle>span:not(.sr-only){display:block;width:22px;height:1px;background:var(--night);margin:5px 0;transition:.25s}.button{min-height:50px;padding:12px 24px;display:inline-flex;align-items:center;justify-content:center;gap:17px;border:1px solid transparent;font-size:.8rem;font-weight:650;letter-spacing:.02em;position:relative;transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s}.button:hover,.button:focus-visible{transform:translateY(-3px)}.button-small{min-height:40px;padding:8px 17px}.button-outline{border-color:rgba(43,28,16,.4)}.button-outline:hover{background:var(--night);color:#fff;box-shadow:0 12px 28px rgba(43,28,16,.15)}.button-gold{background:var(--quiet);color:var(--night);box-shadow:0 14px 28px rgba(0,0,0,.16)}.button-gold::after{content:"↗"}.button-gold:hover{background:#e0c37f;box-shadow:0 18px 42px rgba(0,0,0,.22)}

.eyebrow{font-size:.66rem;line-height:1.4;letter-spacing:.2em;text-transform:uppercase;font-weight:700;color:var(--quiet);margin-bottom:18px}.eyebrow-dark{color:#80673f}.breadcrumb{font-size:.69rem;letter-spacing:.11em;text-transform:uppercase;color:rgba(255,255,255,.55);display:flex;gap:12px;align-items:center;margin-bottom:48px}.breadcrumb a{color:var(--quiet)}.section-shell{padding:120px max(24px,calc((100vw - var(--max))/2))}.section-dark{background:var(--night);color:#fff}.section-porcelain{background:var(--porcelain)}.section-warm{background:var(--warm)}.section-teal{background:var(--teal);color:#fff}.section-heading{max-width:800px}.section-heading h2{margin-bottom:24px}.section-heading>p:last-child{max-width:680px;color:var(--muted)}.section-heading.light>p:last-child{color:rgba(255,255,255,.68)}

.subhero{min-height:660px;padding:76px max(24px,calc((100vw - var(--max))/2)) 92px;position:relative;overflow:hidden;display:flex;align-items:center;background:radial-gradient(circle at 78% 42%,#54351e 0,var(--night) 43%,var(--deep) 100%)}.subhero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.012) 1px,transparent 1px);background-size:88px 88px;mask-image:linear-gradient(to bottom,transparent,black 32%,transparent)}.hero-field{position:absolute;inset:0;width:100%;height:100%;z-index:0}.hero-field polygon{fill:rgba(215,183,116,.03);stroke:rgba(215,183,116,.15);stroke-width:1}.hero-field path{fill:none;stroke:rgba(215,183,116,.62);stroke-width:1.5;stroke-dasharray:9 11;animation:pathDrift 12s linear infinite}.subhero-inner{width:100%;position:relative;z-index:2}.subhero-copy{max-width:930px}.subhero h1{color:#fff;margin:0 0 30px;text-wrap:balance}.subhero .lead{max-width:790px;color:rgba(255,255,255,.7);font-size:clamp(1rem,1.3vw,1.2rem);line-height:1.85;margin:0}.hero-index{position:absolute;right:max(24px,calc((100vw - var(--max))/2));bottom:62px;color:rgba(255,255,255,.28);font-family:Oxygen,sans-serif;font-size:var(--step-2);font-weight:300;letter-spacing:-.03em}.hero-index b{color:var(--quiet);font-weight:300}

.editorial-intro{display:grid;grid-template-columns:.78fr 1.22fr;gap:9vw;align-items:start}.editorial-intro .section-heading{position:sticky;top:120px}.editorial-copy{font-size:1.06rem;color:#514339}.editorial-copy p{margin-bottom:27px}.proof-note{margin-top:44px;padding:32px 35px;border-left:3px solid var(--heritage);background:#fff;box-shadow:0 18px 45px rgba(43,28,16,.07)}.proof-note .eyebrow{margin-bottom:12px}.proof-note p:last-child{margin:0}

.pillar-section{position:relative;overflow:hidden}.pillar-section::before{content:"";position:absolute;width:580px;height:430px;right:-190px;top:-80px;background:linear-gradient(135deg,transparent 49.7%,rgba(195,163,104,.14) 50%,transparent 50.3%);background-size:54px 54px;opacity:.45}.pillar-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:66px;position:relative}.pillar{min-height:280px;padding:34px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.92);box-shadow:0 15px 36px rgba(43,28,16,.07);position:relative;overflow:hidden;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}.pillar:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:rgba(195,163,104,.48)}.pillar-number{font-family:Oxygen,sans-serif;color:var(--heritage);font-size:var(--step-2);font-weight:300;line-height:1}.pillar h4{margin:45px 0 16px}.pillar p{color:var(--muted);font-size:.91rem;margin:0}.pillar::after{content:"";position:absolute;width:140px;height:140px;right:-88px;bottom:-88px;border:1px solid rgba(195,163,104,.28);transform:rotate(45deg);transition:transform .45s var(--ease)}.pillar:hover::after{transform:rotate(45deg) translate(-10px,-10px)}

.ai-section{display:grid;grid-template-columns:.92fr 1.08fr;gap:8vw;align-items:center}.ai-copy h2{margin-bottom:30px}.ai-copy>p:not(.eyebrow){color:rgba(255,255,255,.7)}.trust-question{margin-top:35px;padding:25px 0 0;border-top:1px solid rgba(255,255,255,.18);font-family:Oxygen,sans-serif;font-size:var(--step-1);font-weight:300;line-height:1.35;color:var(--quiet)}.ai-system{position:relative;min-height:480px}.orbit{position:absolute;border:1px solid rgba(217,235,231,.2);border-radius:50%;inset:7%;animation:orbitPulse 7s ease-in-out infinite alternate}.orbit:nth-child(2){inset:21%;animation-delay:-2s}.system-core{position:absolute;inset:34%;border-radius:50%;background:var(--quiet);color:var(--night);display:grid;place-items:center;text-align:center;font-family:Oxygen,sans-serif;font-size:.8rem;line-height:1.3;box-shadow:0 0 0 24px rgba(215,183,116,.08)}.system-node{position:absolute;width:155px;padding:17px 18px;border:1px solid rgba(255,255,255,.16);border-radius:12px;background:rgba(27,54,53,.78);box-shadow:0 17px 35px rgba(0,0,0,.18);font-size:.77rem}.system-node b{display:block;color:var(--quiet);font-family:Oxygen,sans-serif;font-weight:400;margin-bottom:4px}.node-a{top:4%;left:4%}.node-b{top:12%;right:0}.node-c{bottom:3%;left:8%}.node-d{right:3%;bottom:8%}

.licence-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:8vw;align-items:start}.licence-copy p:not(.eyebrow){color:var(--muted)}.licence-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.licence{padding:38px;background:#fff;min-height:250px}.licence+.licence{border-left:1px solid var(--line)}.licence span{display:block;width:34px;height:30px;clip-path:polygon(50% 0,100% 100%,0 100%);background:var(--heritage);margin-bottom:30px}.licence h4{margin-bottom:13px}.licence p{font-size:.89rem;color:var(--muted);margin:0}

.client-benefits{display:grid;grid-template-columns:.72fr 1.28fr;gap:8vw;align-items:start}.benefit-list{border-top:1px solid var(--line)}.benefit{display:grid;grid-template-columns:76px 1fr;gap:26px;padding:32px 0;border-bottom:1px solid var(--line);transition:padding-left .4s var(--ease),background .4s}.benefit:hover{padding-left:18px;background:rgba(255,255,255,.45)}.benefit-index{font-family:Oxygen,sans-serif;font-size:var(--step-1);font-weight:300;color:var(--heritage)}.benefit h4{margin:0 0 10px}.benefit p{margin:0;color:var(--muted);font-size:.92rem;max-width:630px}

.next-generation{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;gap:8vw;align-items:center}.next-generation::after{content:"";position:absolute;width:760px;height:460px;right:-160px;bottom:-260px;border:1px solid rgba(215,183,116,.25);transform:rotate(-8deg);clip-path:polygon(0 100%,34% 20%,58% 100%,77% 48%,100% 100%)}.next-generation h2{margin-bottom:26px}.next-generation p{color:rgba(255,255,255,.68);max-width:650px}.generation-mark{min-height:360px;position:relative;z-index:2}.generation-mark svg{width:100%;height:100%}.generation-mark polygon{fill:rgba(215,183,116,.045);stroke:rgba(215,183,116,.6);stroke-width:1}.generation-mark .active{fill:rgba(215,183,116,.18);animation:peakGlow 4s ease-in-out infinite alternate}

.closing{min-height:390px;display:flex;justify-content:space-between;align-items:center;gap:60px;position:relative;overflow:hidden}.closing::after{content:"";position:absolute;width:490px;height:360px;right:-70px;bottom:-205px;border:1px solid rgba(215,183,116,.24);transform:rotate(45deg)}.closing-copy,.closing .button{position:relative;z-index:2}.closing h2{font-size:clamp(2.4rem,4.3vw,var(--step-3));margin:0;max-width:820px}

.site-footer{padding:70px max(24px,calc((100vw - var(--max))/2)) 26px;background:var(--deep);display:grid;grid-template-columns:1fr 1fr;gap:64px;border-top:1px solid rgba(255,255,255,.12);color:#fff}.footer-brand img{width:190px}.footer-brand p{max-width:480px;margin:27px 0 0;color:rgba(255,255,255,.52);font-size:.75rem}.footer-nav{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.footer-nav h3{font-family:Raleway,sans-serif;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--quiet);font-weight:650;margin-bottom:15px}.footer-nav a{display:block;color:rgba(255,255,255,.56);font-size:.75rem;margin:7px 0}.footer-nav a:hover{color:#fff}.footer-bottom{grid-column:1/-1;display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;color:rgba(255,255,255,.35);font-size:.66rem}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .85s var(--ease),transform .85s var(--ease)}.reveal.visible{opacity:1;transform:none}.stagger>*{opacity:0;transform:translateY(24px);transition:opacity .75s var(--ease),transform .75s var(--ease)}.stagger.visible>*{opacity:1;transform:none}.stagger.visible>*:nth-child(2){transition-delay:.1s}.stagger.visible>*:nth-child(3){transition-delay:.2s}.stagger.visible>*:nth-child(4){transition-delay:.3s}
@keyframes pathDrift{to{stroke-dashoffset:-200}}@keyframes orbitPulse{from{transform:scale(.97);opacity:.45}to{transform:scale(1.03);opacity:1}}@keyframes peakGlow{from{fill:rgba(215,183,116,.08)}to{fill:rgba(215,183,116,.28)}}

@media(max-width:1100px){.site-header{grid-template-columns:1fr auto}.site-nav{position:fixed;inset:var(--header) 0 0;background:var(--night);color:#fff;display:flex;flex-direction:column;align-items:flex-start;padding:50px 7vw;gap:13px;transform:translateX(100%);visibility:hidden;pointer-events:none;transition:transform .45s var(--ease),visibility .45s;font-family:Oxygen,sans-serif;font-size:clamp(1.6rem,5vw,2.8rem)}.site-nav.open{transform:none;visibility:visible;pointer-events:auto}.site-nav a{width:100%;border-bottom:1px solid rgba(255,255,255,.12)}.menu-toggle{display:block;justify-self:end}.menu-toggle[aria-expanded=true]>span:nth-child(1){transform:translateY(6px) rotate(45deg)}.menu-toggle[aria-expanded=true]>span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true]>span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.header-actions{display:none}.editorial-intro,.ai-section,.licence-section,.client-benefits,.next-generation{grid-template-columns:1fr;gap:55px}.editorial-intro .section-heading{position:static}.licence-grid{max-width:820px}.ai-system{max-width:700px;width:100%;margin:auto}.generation-mark{height:330px}.closing{align-items:flex-start;flex-direction:column}}
@media(max-width:700px){:root{--header:68px;--step-4:4.236rem}.site-header{padding:0 18px}.brand{width:154px}.subhero{min-height:660px;padding:66px 22px 80px}.breadcrumb{margin-bottom:40px}.subhero h1{font-size:clamp(3rem,14vw,4.45rem)}.hero-index{right:22px;bottom:28px}.section-shell{padding:88px 22px}.pillar-grid{grid-template-columns:1fr;margin-top:46px}.pillar{min-height:245px}.pillar h4{margin-top:34px}.ai-system{min-height:430px}.system-node{width:130px;padding:13px;font-size:.67rem}.system-core{inset:36%;font-size:.68rem}.licence-grid{grid-template-columns:1fr}.licence+.licence{border-left:0;border-top:1px solid var(--line)}.benefit{grid-template-columns:48px 1fr;gap:15px}.next-generation{gap:30px}.generation-mark{height:250px;min-height:0}.closing{padding-block:78px}.site-footer{grid-template-columns:1fr;padding:58px 22px 24px}.footer-bottom{flex-direction:column;gap:7px}.page-progress{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.reveal,.stagger>*{opacity:1;transform:none}.page-progress{display:none}}
:focus-visible{outline:2px solid var(--quiet);outline-offset:4px}

/* v16 bilingual controls */
.ai-system>img{position:absolute;inset:50% auto auto 50%;width:min(42%,220px);transform:translate(-50%,-50%);opacity:.75}
.nav-language{display:none;border:1px solid rgba(255,255,255,.28);background:transparent;color:inherit;padding:10px 14px;font:400 .8rem Oxygen,sans-serif;cursor:pointer}
html[lang="zh-Hans"] body{font-family:'Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif}
html[lang="zh-Hans"] h1,html[lang="zh-Hans"] h2,html[lang="zh-Hans"] h3,html[lang="zh-Hans"] h4{font-family:'Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;font-weight:400;letter-spacing:.01em}
@media(max-width:1100px){.nav-language{display:inline-flex;margin-top:22px;align-items:center;justify-content:center}.site-nav .nav-language{width:auto;font-size:.9rem}}