:root{--paper:#f7f5f0;--ink:#171817;--muted:#737572;--line:#d3d1cc;--accent:#ce481c}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:6px}.wrap{width:calc(100% - 9.6%);max-width:1600px;margin-inline:auto}.header{display:flex;align-items:center;gap:28px;min-height:92px}.brand{font-size:25px;font-weight:700;letter-spacing:-1.1px;white-space:nowrap}.brand-dot{color:var(--accent)}.company{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:27px}.header nav{display:flex;gap:30px;margin-left:auto;font-size:14px;font-weight:600}.header nav a:hover{color:var(--accent)}.language{display:flex;gap:6px;align-items:center;border-left:1px solid var(--line);padding-left:27px;font-size:14px;color:var(--muted)}.language button{border:0;padding:8px 0;background:none;color:inherit;cursor:pointer}.language button[aria-pressed=true]{color:var(--accent);font-weight:700}.button{display:inline-flex;align-items:center;justify-content:center;gap:15px;padding:15px 22px;background:var(--accent);color:white;font-size:14px;transition:background .2s}.button:hover{background:#ac3916}.hero{display:grid;grid-template-columns:minmax(0,3fr) minmax(240px,1fr);gap:65px;padding-top:52px;padding-bottom:31px;align-items:center}.eyebrow{font-size:11px;line-height:1.8;letter-spacing:3px;color:var(--muted);margin:0}.short-rule{display:block;background:var(--line);width:34px;height:1px;margin-top:22px}h1{font-size:clamp(60px,7.8vw,120px);line-height:1.12;letter-spacing:-5px;margin:20px 0 10px;font-weight:750;white-space:nowrap}.accent{color:var(--accent)}.hero-sub{font-size:clamp(24px,3.7vw,56px);letter-spacing:-1.8px;line-height:1.2;margin:0}.hero-aside{border-left:1px solid var(--line);padding-left:34px;margin-top:35px}.hero-aside>p:first-child{color:#626460;font-size:17px;line-height:1.75;margin:0 0 22px}.hero-aside .eyebrow{font-size:10px;letter-spacing:2.7px}.panorama{width:100%;height:clamp(280px,28vw,450px);overflow:hidden;background:#061526}.panorama img{width:100%;height:100%;object-fit:cover;display:block}.services{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding-top:32px;padding-bottom:33px;border-bottom:1px solid var(--line);scroll-margin-top:25px}.service{padding-inline:28px;border-left:1px solid var(--line)}.service:first-child{padding-left:0;border:0}.service:last-child{padding-right:0}.service-index{display:flex;gap:18px;align-items:center;font-size:14px;color:var(--accent);margin-bottom:22px}.service-index i{height:1px;background:var(--line);flex:1}.service-content{display:flex;gap:24px;align-items:flex-start}.service-label{color:var(--muted);font-size:11px;letter-spacing:1.5px;padding-top:6px;min-width:49px}.service h2{font-size:21px;margin:0 0 8px;letter-spacing:-.6px}.service p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}.principles{display:grid;grid-template-columns:.72fr 1fr 1fr 1fr;padding-block:40px;border-bottom:1px solid var(--line);align-items:center}.principle{padding-left:28px;border-left:1px solid var(--line)}.principle:nth-child(2){border:0}.principle h2{font-size:22px;font-weight:400;letter-spacing:-.6px;margin:0}.principle>span{display:block;width:28px;height:2px;background:var(--accent);margin-top:14px}.principle p{font-size:15px;color:var(--muted);margin:14px 0 0}.contact{display:flex;justify-content:space-between;align-items:center;gap:30px;padding-block:45px;border-bottom:1px solid var(--line)}.contact .eyebrow{letter-spacing:2px}.contact h2{font-size:30px;font-weight:500;letter-spacing:-1px;margin:12px 0 0}.email{font-size:clamp(16px,1.6vw,24px);color:var(--accent);display:flex;align-items:center;gap:30px}.email:hover{color:#a23614}.email span{font-size:29px}.footer{display:flex;justify-content:space-between;align-items:center;gap:30px;padding-block:27px;color:var(--muted);font-size:12px}.footer-brand{display:flex;gap:24px;align-items:center}.footer .brand{font-size:17px;color:var(--ink)}.footer-brand>span{border-left:1px solid var(--line);padding-left:24px}.legal{display:flex;gap:22px}.legal a:hover{text-decoration:underline}.skip{position:absolute;top:-100px;padding:12px;background:var(--ink);color:white;z-index:2}.skip:focus{top:10px}html[lang=en] h1{font-size:clamp(42px,5.6vw,88px);letter-spacing:-4px;white-space:normal}html[lang=en] .hero-sub{font-size:clamp(24px,3vw,44px)}html[lang=en] .company{max-width:170px;line-height:1.5}
@media(min-width:1600px){.hero{padding-top:70px;padding-bottom:45px}}@media(max-width:1100px){.header{gap:20px}.company{display:none}.header nav{gap:22px}.hero{gap:35px;grid-template-columns:minmax(0,2.7fr) minmax(220px,1fr)}h1{letter-spacing:-3px}.hero-aside{padding-left:24px}.service{padding-inline:20px}.service-content{gap:14px}.service h2{font-size:19px}.contact h2{font-size:26px}.footer{align-items:flex-start}.legal{flex-direction:column;gap:8px}}@media(max-width:700px){.wrap{width:calc(100% - 40px)}.header{min-height:104px;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-block:16px}.header .brand{font-size:23px}.header nav{order:3;flex-basis:100%;margin:0;gap:28px;font-size:13px}.language{margin-left:auto;border:0;padding-left:0}.hero{display:block;padding-top:30px;padding-bottom:28px}.eyebrow{font-size:9px;letter-spacing:2.5px}.hero .short-rule{margin-top:18px}h1{font-size:clamp(43px,10.8vw,75px);letter-spacing:-2px;margin-top:20px}.hero-sub{font-size:clamp(21px,5.5vw,36px);letter-spacing:-.8px}.hero-aside{margin-top:27px;padding:0;border:0}.hero-aside>p:first-child{font-size:14px;max-width:470px;margin-bottom:16px;line-height:1.8}.hero-aside .eyebrow{font-size:8px}.panorama{height:260px}.panorama img{object-position:50% 50%}.services{grid-template-columns:1fr;padding-top:6px;padding-bottom:0}.service,.service:first-child,.service:last-child{padding:24px 0;border:0;border-bottom:1px solid var(--line)}.service:last-child{border-bottom:0}.service-index{margin-bottom:15px}.service-content{gap:25px}.service h2{font-size:21px}.service p{font-size:14px}.principles{grid-template-columns:1fr;gap:25px;padding-block:30px}.principles-label .eyebrow br{display:none}.principles-label .short-rule{display:none}.principle,.principle:nth-child(2){padding-left:20px;border-left:1px solid var(--line)}.principle h2{font-size:23px}.principle>span{margin-top:10px}.principle p{margin-top:10px}.contact{display:block;padding-block:33px}.contact h2{font-size:28px;line-height:1.3}.email{margin-top:24px;font-size:clamp(14px,4.3vw,20px);gap:15px}.footer{flex-direction:column;gap:20px;padding-block:24px}.footer-brand{gap:15px;flex-wrap:wrap}.footer-brand>span{padding-left:15px;font-size:11px}.legal{flex-direction:row;flex-wrap:wrap;gap:15px;font-size:10px}html[lang=en] h1{font-size:clamp(44px,12vw,70px);letter-spacing:-2px;max-width:450px}html[lang=en] .hero-sub{font-size:23px}html[lang=en] .contact h2{max-width:330px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.service-icon{color:#646762;font-size:36px;min-width:49px;margin-top:3px}.button .fa-arrow-right,.email .fa-arrow-right{transform:rotate(-45deg)}.email .fa-arrow-right{font-size:24px}.hero{padding-top:30px;padding-bottom:28px}.hero-aside{margin-top:15px}@media(max-width:700px){.service-icon{font-size:32px}.hero{padding-top:30px;padding-bottom:28px}.hero-aside{margin-top:27px}}
@media(min-width:701px) and (max-width:900px){.hero-aside>p:first-child{font-size:15px}}
/* Enterprise positioning, technical approach and project experience. */
.expertise,.ai-section{padding-block:76px;border-bottom:1px solid var(--line)}.section-heading{display:grid;grid-template-columns:1fr 1fr;column-gap:60px;align-items:start}.section-heading>.eyebrow{grid-column:1/-1;margin-bottom:22px}.section-title{font-size:clamp(30px,3.4vw,48px);line-height:1.2;font-weight:600;letter-spacing:-1.5px;margin:0}.section-intro{font-size:16px;line-height:1.9;color:#626460;margin:0;max-width:620px}.technical-rows{margin-top:42px}.technical-row{display:grid;grid-template-columns:70px 1fr 1.7fr;gap:28px;padding:27px 0;border-top:1px solid var(--line);align-items:start}.row-number{font-size:13px;color:var(--accent);padding-top:5px}.technical-row h3,.ai-grid h3{font-size:21px;line-height:1.4;font-weight:500;margin:0;letter-spacing:-.5px}.technical-row p,.ai-grid p{font-size:15px;line-height:1.9;color:#626460;margin:0}.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:45px}.ai-grid article{border-top:1px solid var(--line);padding-top:24px}.ai-grid p{margin-top:15px}.ai-note{font-size:13px;color:var(--muted);margin:32px 0 0;padding-left:16px;border-left:2px solid var(--accent);line-height:1.8}.header{gap:22px}.header nav{gap:22px}.company{padding-left:20px}.language{padding-left:20px}@media(max-width:1100px){.header nav{gap:20px}}@media(max-width:700px){.expertise,.ai-section{padding-block:42px}.section-heading{grid-template-columns:1fr;gap:18px}.section-heading>.eyebrow{margin:0}.section-title{font-size:32px;letter-spacing:-1px}.section-intro{font-size:14px;line-height:1.85}.technical-rows{margin-top:28px}.technical-row{grid-template-columns:30px 1fr;gap:12px;padding-block:24px}.technical-row h3{font-size:21px}.technical-row p{grid-column:2;font-size:14px}.ai-grid{grid-template-columns:1fr;gap:25px;margin-top:28px}.ai-grid h3{font-size:21px}.ai-grid p{font-size:14px}.ai-note{font-size:12px}.header nav{gap:22px;font-size:12px}}
/* Client-oriented service and delivery structure. */
.business-section,.delivery-section{padding-block:68px;border-bottom:1px solid var(--line)}.business-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;margin-top:40px}.business-grid h3{font-size:25px;font-weight:500;line-height:1.4;margin:18px 0}.business-grid p{font-size:15px;line-height:1.85;color:#626460}.business-details{border-left:1px solid var(--line);padding-left:35px}.business-details h3{margin-top:0;font-size:20px}.scope-item{padding-block:12px;border-bottom:1px solid var(--line);margin:0}.ai-offerings{margin-top:40px}.ai-offering{display:grid;grid-template-columns:45px 1fr 1.4fr;gap:30px;padding-block:30px;border-top:1px solid var(--line)}.ai-offering h3{font-size:25px;line-height:1.4;font-weight:500;margin:0}.customer-problem{font-size:14px;line-height:1.8;color:var(--muted);margin:12px 0 0;max-width:360px}.offering-detail{font-size:15px;line-height:1.85;color:#626460;margin:0}.delivery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:40px}.delivery-grid article{border-top:1px solid var(--line);padding-top:20px}.delivery-grid h3{font-size:22px;line-height:1.4;font-weight:500;margin:18px 0 12px}.delivery-grid p{font-size:14px;line-height:1.85;color:#626460;margin:0}.delivery-boundary{display:grid;grid-template-columns:1fr 1.5fr;gap:50px;padding-top:28px;margin-top:35px;border-top:1px solid var(--line)}.delivery-boundary h3{font-size:20px;font-weight:500;margin:0;line-height:1.5}.delivery-boundary p{font-size:14px;line-height:1.85;color:#626460;margin:0}.about-note{display:grid;grid-template-columns:1fr 1.5fr;gap:50px;padding-block:38px;border-bottom:1px solid var(--line)}.about-note h2{font-size:20px;font-weight:500;line-height:1.5;margin:0}.about-note p{font-size:14px;line-height:1.85;color:#626460;margin:0}.hero-sub{font-size:clamp(23px,2.9vw,43px);letter-spacing:-1px}.contact-guidance{max-width:560px;color:#626460;font-size:14px;line-height:1.8;margin:15px 0 0}.contact>div{flex:1}.contact .email{white-space:nowrap}.header .company{display:none}@media(max-width:900px){.delivery-grid{grid-template-columns:repeat(2,1fr)}.business-grid{gap:35px}.contact{flex-wrap:wrap}.contact .email{white-space:normal}}@media(max-width:700px){.business-section,.delivery-section{padding-block:42px}.business-grid{grid-template-columns:1fr;gap:26px;margin-top:28px}.business-details{border:0;padding:0}.business-grid h3{font-size:23px}.business-grid p{font-size:14px}.ai-offering{grid-template-columns:25px 1fr;gap:14px;padding-block:25px}.ai-offering h3{font-size:24px}.offering-detail{grid-column:2;font-size:14px}.customer-problem{font-size:13px}.delivery-grid{grid-template-columns:1fr;gap:26px;margin-top:28px}.delivery-grid h3{margin-top:12px}.delivery-boundary,.about-note{grid-template-columns:1fr;gap:15px}.about-note{padding-block:30px}.contact-guidance{font-size:13px}.hero-sub{font-size:clamp(19px,5vw,30px)}}
@media(max-width:700px){html[lang=zh-CN] h1{font-size:clamp(37px,9.6vw,67px);letter-spacing:-2px}}
/* Supplied brand assets and direct QR contact. */
.brand{display:block;width:190px;height:58px;overflow:hidden;flex-shrink:0}.brand-image{display:block;width:245px;height:auto;max-width:none;margin-left:-27px;margin-top:-32px;mix-blend-mode:multiply}.footer .brand{width:145px;height:44px}.footer .brand-image{width:190px;margin-left:-22px;margin-top:-25px}.contact-code{margin:0;text-align:center;flex-shrink:0}.contact-code img{display:block;width:196px;height:196px;max-width:100%;image-rendering:auto;background:#fff}.contact-code figcaption{font-size:13px;color:#626460;line-height:1.6;margin-top:12px}.qr-link{display:inline-block;font-size:12px;color:var(--accent);padding:8px}.qr-link:hover{text-decoration:underline}.contact{gap:60px;padding-block:50px}.contact-code>a:first-child{display:inline-block}.contact-code a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}@media(max-width:700px){.header .brand{width:155px;height:46px}.header .brand-image{width:200px;margin-left:-22px;margin-top:-26px}.contact{padding-block:35px}.contact-code{margin-top:28px;text-align:left}.contact-code img{width:196px;height:196px}.contact-code figcaption{max-width:240px}.qr-link{padding-left:0}}
/* Layout refinement: distinct section rhythms, always-visible contact CTA. */
.header-cta{display:inline-flex;flex-shrink:0}.cta-compact{display:none}
.business-section{padding-block:80px}.business-grid{grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}.business-feature{background:#eeece6;padding:32px 36px}.business-feature h3{font-size:30px;margin:20px 0 16px}.business-feature p:last-child{margin-bottom:0}.business-details{padding:10px 0 0;border-left:0}.business-details h3{margin-bottom:14px}.scope-item{padding-block:17px}
.ai-section{padding-block:80px}.ai-offerings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 58px;margin-top:42px}.ai-offering{grid-template-columns:30px minmax(0,1fr);gap:14px 20px;padding-block:30px 36px}.ai-offering h3{font-size:27px}.customer-problem{max-width:none}.offering-detail{grid-column:2;max-width:520px}.ai-offering:nth-child(3),.ai-offering:nth-child(4){border-bottom:1px solid var(--line)}
.delivery-section{display:grid;grid-template-columns:.9fr 1.3fr;gap:40px 70px;padding-block:80px}.delivery-section .section-heading{display:block}.delivery-section .section-heading>.eyebrow{margin-bottom:24px}.delivery-section .section-title{font-size:clamp(30px,3vw,44px);max-width:420px}.delivery-section .section-intro{margin-top:24px}.delivery-grid{grid-template-columns:1fr;gap:0;margin-top:0}.delivery-grid article{display:grid;grid-template-columns:35px 1fr;gap:8px 20px;padding-block:24px}.delivery-grid article:first-child{padding-top:0;border-top:0}.delivery-grid h3{margin:0;font-size:23px}.delivery-grid p{grid-column:2}.delivery-boundary{grid-column:1/-1;margin-top:0;padding-top:30px}.about-note{padding-block:45px}.contact{padding-block:60px}.contact-code{background:#fff;padding:20px 22px 10px}.contact-code img{width:204px;height:204px}
@media(min-width:701px) and (max-width:1000px){.header{display:grid;grid-template-columns:1fr auto auto;gap:8px 20px;padding-block:15px}.header .brand{grid-column:1}.header .language{grid-column:2;margin:0}.header-cta{grid-column:3;grid-row:1}.header nav{grid-column:1/-1;grid-row:2;margin:0;padding-top:10px}.delivery-section{gap:35px}.ai-offerings{column-gap:30px}}
@media(max-width:700px){.header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:13px 12px;min-height:110px;padding-block:15px}.header .brand{grid-column:1;grid-row:1}.header .language{grid-column:2;grid-row:1;margin:0;padding:0;justify-self:end}.header nav{grid-column:1;grid-row:2;gap:14px;margin:0;flex-basis:auto;font-size:11px;white-space:nowrap;align-items:center}.header-cta{grid-column:2;grid-row:2;justify-self:end;padding:10px 12px;gap:8px;font-size:12px}.cta-full{display:none}.cta-compact{display:inline}.business-section,.ai-section,.delivery-section{padding-block:42px}.business-grid{grid-template-columns:1fr;gap:26px}.business-feature{padding:24px}.business-feature h3{font-size:25px}.business-details{padding:0}.ai-offerings{grid-template-columns:1fr;margin-top:28px;gap:0}.ai-offering{grid-template-columns:25px 1fr;gap:12px;padding-block:26px}.ai-offering h3{font-size:24px}.ai-offering:nth-child(3){border-bottom:0}.delivery-section{grid-template-columns:1fr;gap:28px}.delivery-section .section-title{font-size:32px}.delivery-section .section-intro{margin-top:18px}.delivery-grid article:first-child{border-top:1px solid var(--line);padding-top:24px}.delivery-grid article{grid-template-columns:25px 1fr;gap:10px 12px}.delivery-boundary{padding-top:22px}.about-note{padding-block:32px}.contact{padding-block:40px}.contact-code{display:inline-block;padding:16px;margin-top:26px}.contact-code figcaption{font-size:12px}.contact-code img{width:204px;height:204px}}
/* Restrained visual accents using the existing local icon library. */
.business-feature{position:relative;border-top:2px solid var(--accent)}.business-icon{font-size:32px;color:var(--accent);margin-bottom:22px}.business-feature .eyebrow{font-size:10px}.offering-icon{font-size:24px;color:var(--accent);margin-bottom:18px}.ai-offering .row-number{font-size:11px;letter-spacing:1px;padding-top:4px}.ai-offering{transition:border-color .2s}.ai-offering:hover{border-top-color:var(--accent)}.stage-icon{grid-column:2;color:var(--accent);font-size:20px;margin-bottom:5px}.delivery-grid article{position:relative}.delivery-grid article .row-number{grid-column:1;grid-row:1/4;color:var(--accent);font-size:12px}.delivery-grid article h3{grid-column:2}.section-heading>.eyebrow{display:flex;align-items:center;gap:14px}.section-heading>.eyebrow:before{content:"";display:block;width:25px;height:2px;background:var(--accent);flex-shrink:0}.business-details h3{padding-bottom:16px;border-bottom:1px solid var(--line)}.scope-item:last-child{border-bottom:0}.delivery-boundary{border-top-color:var(--accent)}@media(max-width:700px){.business-icon{font-size:28px;margin-bottom:18px}.offering-icon{font-size:22px;margin-bottom:14px}.stage-icon{font-size:18px}}
.icon{display:inline-block;width:1em;height:1em;fill:currentColor;vertical-align:-.125em;overflow:visible;flex-shrink:0}
/* Crawlable language links share the original switcher styling. */
.language a{padding:8px 0;color:inherit}.language a[aria-current=page]{color:var(--accent);font-weight:700}
/* Motion: short, one-time transitions and a finite panorama drift. */
@media(prefers-reduced-motion:no-preference){
  .hero-main{animation:hero-arrive .8s cubic-bezier(.22,1,.36,1) both}
  .hero-aside{animation:hero-arrive .8s .12s cubic-bezier(.22,1,.36,1) both}
  .panorama img{animation:horizon-settle 14s ease-out both}
  .motion-reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s cubic-bezier(.22,1,.36,1)}
  .motion-reveal.is-visible{opacity:1;transform:none}
  .ai-offering:nth-child(even).motion-reveal{transition-delay:70ms}
  .button{transition:background .2s,box-shadow .2s,transform .2s}
  .button:hover{transform:translateY(-2px);box-shadow:0 6px 18px #ce481c24}
  .button .icon{transition:transform .2s}
  .button:hover .icon,.button:focus-visible .icon{transform:translateX(4px)}
  .offering-icon,.business-icon,.stage-icon{transition:transform .25s ease}
  .ai-offering:hover .offering-icon,.business-feature:hover .business-icon,.delivery-grid article:hover .stage-icon{transform:translateY(-3px)}
}
.header nav a{position:relative}
.header nav a:after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s}
.header nav a:hover:after,.header nav a:focus-visible:after{transform:scaleX(1)}
@keyframes hero-arrive{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes horizon-settle{from{transform:scale(1.045)}to{transform:scale(1)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.motion-reveal{opacity:1;transform:none}}
@media print{.motion-reveal{opacity:1!important;transform:none!important}}
/* Fine motion details: reading progress, staggered rhythm and tactile surfaces. */
.reading-progress{position:fixed;inset:0 auto auto 0;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;z-index:20;pointer-events:none}
.ai-offering,.business-feature,.contact-code{position:relative}
@media(prefers-reduced-motion:no-preference){
 .motion-reveal{transition-delay:var(--reveal-delay,0ms)}
 .ai-offering:nth-child(even).motion-reveal{transition-delay:var(--reveal-delay,70ms)}
 .business-feature,.contact-code{transition:background .35s,box-shadow .35s}
 .business-feature:hover{background:#e9e6de;box-shadow:0 12px 30px #17181708}
 .contact-code:hover{box-shadow:0 12px 30px #1718170d}
 .ai-offering:after{content:"";position:absolute;top:-1px;left:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .5s cubic-bezier(.22,1,.36,1)}
 .ai-offering:hover:after{transform:scaleX(1)}
 .delivery-grid article:after{content:"";position:absolute;left:0;top:24px;width:2px;height:calc(100% - 48px);background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .4s}
 .delivery-grid article:hover:after{transform:scaleY(1)}
 .delivery-grid article h3{transition:color .25s}
 .delivery-grid article:hover h3{color:var(--accent)}
 .section-heading>.eyebrow:before{transition:width .7s cubic-bezier(.22,1,.36,1)}
 .section-heading.motion-reveal:not(.is-visible)>.eyebrow:before{width:8px}
 .section-heading.is-visible>.eyebrow:before{width:36px}
 .hero .short-rule{animation:rule-arrive .9s .2s cubic-bezier(.22,1,.36,1) both;transform-origin:left}
}
@keyframes rule-arrive{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media(hover:hover) and (prefers-reduced-motion:no-preference){
 .panorama img{animation:none;transform:scale(1.025) translateY(var(--horizon-offset,0px));transition:transform .2s linear}
}
@media print{.reading-progress{display:none}}
/* Ambient particles stay inside the panorama and never intercept interaction. */
.panorama{position:relative}.ambient-particles{position:absolute;inset:0;pointer-events:none;overflow:hidden}.ambient-particle{position:absolute;left:var(--x);top:var(--y);width:var(--size);height:var(--size);border-radius:50%;background:#d9efff;opacity:var(--opacity);box-shadow:0 0 7px #b6dcff70}
@media(prefers-reduced-motion:no-preference){.ambient-particle{animation:particle-drift var(--duration) var(--delay) ease-in-out infinite alternate}}
@keyframes particle-drift{0%{transform:translate3d(0,12px,0);opacity:var(--opacity)}50%{opacity:calc(var(--opacity) * .45)}100%{transform:translate3d(var(--drift),-28px,0);opacity:var(--opacity)}}
@media(max-width:700px){.ambient-particle:nth-child(n+19){display:none}}
@media print{.ambient-particles{display:none}}

/* More legible foreground particles against the network image. */
.ambient-particles{z-index:2;background:linear-gradient(180deg,#03132508,#03132518)}
.ambient-particle{background:#e5f5ff;box-shadow:0 0 5px #d4efffcc,0 0 15px #78bcff80}
.ambient-particle:nth-child(4n+1){background:#fff;box-shadow:0 0 8px #fff9,0 0 24px #7ecaff99;filter:blur(.3px)}
@keyframes particle-drift{0%{transform:translate3d(0,30px,0) scale(.8);opacity:calc(var(--opacity) * .6)}50%{opacity:var(--opacity)}100%{transform:translate3d(var(--drift),-70px,0) scale(1.15);opacity:calc(var(--opacity) * .7)}}
@media(max-width:700px){.ambient-particle:nth-child(n+19){display:block}.ambient-particle:nth-child(n+25){display:none}}
.back-to-top{position:fixed;right:28px;bottom:calc(28px + env(safe-area-inset-bottom));z-index:15;display:flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid #d3d1cc;border-radius:50%;background:#f7f5f0;color:var(--accent);box-shadow:0 4px 18px #17181712;font:26px/1 Arial,sans-serif;cursor:pointer;transition:background .2s,color .2s,transform .2s}
.back-to-top[hidden]{display:none}.back-to-top:hover{background:var(--accent);color:#fff;transform:translateY(-3px)}
@media(max-width:700px){.back-to-top{right:16px;bottom:calc(18px + env(safe-area-inset-bottom));width:44px;height:44px;font-size:24px}}
@media print{.back-to-top{display:none}}

/* Editorial return control aligned with the site's rules and typography. */
.back-to-top{right:30px;bottom:calc(26px + env(safe-area-inset-bottom));width:auto;height:46px;gap:18px;padding:0 18px;border:1px solid #d3d1cc;border-radius:0;background:#f7f5f0f2;color:var(--ink);box-shadow:none;font:11px/1 Arial,"PingFang SC",sans-serif;letter-spacing:2px;backdrop-filter:blur(10px)}
.back-to-top-label{white-space:nowrap}.back-to-top-arrow{position:relative;display:block;width:10px;height:20px;color:var(--accent);transition:transform .25s}
.back-to-top-arrow:before{content:"";position:absolute;left:5px;top:1px;width:1px;height:19px;background:currentColor}
.back-to-top-arrow:after{content:"";position:absolute;left:2px;top:1px;width:6px;height:6px;border-left:1px solid currentColor;border-top:1px solid currentColor;transform:rotate(45deg)}
.back-to-top:hover{background:var(--paper);color:var(--accent);border-color:var(--accent);transform:none}.back-to-top:hover .back-to-top-arrow{transform:translateY(-3px)}
@media(max-width:700px){.back-to-top{right:16px;bottom:calc(18px + env(safe-area-inset-bottom));height:44px;padding:0 14px;gap:14px;font-size:10px;letter-spacing:1.5px}}