/* Shared customer-facing structure. Load after the historical page styles. */
:root{--content:1280px;--edge:clamp(22px,5vw,80px)}
main{min-width:0}
.section,.page-heading,.technical-head{padding-inline:max(var(--edge),calc((100vw - var(--content))/2))}
.section{padding-block:88px}
.section>h2{max-width:22em;font-size:clamp(30px,3.2vw,48px);line-height:1.4;margin-bottom:32px}
.section>p{max-width:58em;font-size:17px;line-height:1.9}
.section>.actions{margin-top:28px}
.section>div[class^=ia-]+p,.section>.cal-adoption-grid+p{margin-top:30px}
.section-heading{gap:50px;margin-bottom:44px;align-items:start}
.section-heading h2{max-width:18em;font-size:clamp(30px,3.2vw,48px);line-height:1.4}
.section-heading>p{flex-basis:460px;font-size:16px;line-height:1.9}
.section-heading>div{min-width:0}
.page-heading{padding-block:74px 62px}
.page-heading h1{max-width:17em;font-size:clamp(38px,4.6vw,66px);line-height:1.35}
.page-heading>p:not(.eyebrow){max-width:48em;font-size:18px;line-height:1.9}
.page-heading .actions{margin-top:30px}
.actions{gap:15px 26px}
.actions>*{min-width:0;max-width:100%}
.button{gap:24px}
.button>span:last-child,.text-link>span:last-child{flex-shrink:0}
.header{gap:24px;padding-inline:var(--edge)}
.main-nav{gap:22px}
.header-actions{gap:16px}
.footer{padding-inline:var(--edge)}
.footer nav{flex-wrap:wrap;gap:12px 22px}

/* The clear ring keeps its own contrast. Only the overlap with copy fades. */
.hero.cal-hero{display:block;position:relative;isolation:isolate;min-height:740px;padding:86px max(var(--edge),calc((100vw - var(--content))/2)) 84px;background:var(--sheet)}
.cal-hero-copy{position:relative;z-index:2;width:52%;max-width:680px;container-type:normal}
.cal-hero h1{max-width:11em;font-size:clamp(43px,4.6vw,70px);line-height:1.32}
.cal-intro{max-width:31em;font-size:19px;margin-top:28px;line-height:1.9}
.cal-partner-intro{max-width:34em;font-size:15px;line-height:1.9;margin-top:20px!important}
.cal-offerings{gap:0 13px;margin:20px 0 22px;align-items:start}
.cal-offerings .text-link{font-size:13px;gap:12px}
.cal-water{z-index:0;inset:auto -7% 2% auto;width:85%;height:94%;background:transparent;overflow:visible}
.cal-water img{width:100%;height:100%;object-fit:contain;object-position:center center;opacity:1;filter:none;
  -webkit-mask-image:radial-gradient(ellipse 76% 83% at 0% 31%,transparent 0%,rgba(0,0,0,.08) 38%,rgba(0,0,0,.55) 57%,#000 77%);
  mask-image:radial-gradient(ellipse 76% 83% at 0% 31%,transparent 0%,rgba(0,0,0,.08) 38%,rgba(0,0,0,.55) 57%,#000 77%)}
.cal-water:after{content:none;background:none}
html[data-style=water] .cal-water img{opacity:1;filter:sepia(.08) hue-rotate(-23deg) saturate(.85)}
.cal-hero-edge{right:var(--edge);bottom:28px;z-index:1;font-size:10px;letter-spacing:.3em}

/* Entry doors compare ways of working; quiet ruled columns keep them distinct. */
.ia-door-grid,.ia-situation-grid,.ia-topic-grid{display:grid;gap:42px;grid-template-columns:repeat(3,minmax(0,1fr))}
.ia-door-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:64px}
.ia-door-grid>article,.ia-situation-grid>article,.ia-topic-grid>article{min-width:0;padding:24px 0 0;border-top:1px solid var(--line);background:transparent}
.ia-door-grid>article{border-top:2px solid var(--accent)}
.ia-door-grid h3,.ia-situation-grid h3,.ia-topic-grid h3{font-size:24px;line-height:1.55;margin-bottom:16px}
.ia-door-grid p,.ia-situation-grid p,.ia-topic-grid p{font-size:16px;line-height:1.9}
.ia-door-grid .eyebrow,.ia-situation-grid .eyebrow,.ia-topic-grid .eyebrow{margin-bottom:16px}
.ia-door-grid .text-link,.ia-situation-grid .text-link,.ia-topic-grid .text-link{margin-top:20px}
.ia-door-grid ul,.ia-situation-grid ul,.ia-topic-grid ul{font-size:15px;line-height:1.9;color:var(--ink2);padding-left:1.2em;margin-block:20px}
.ia-principle-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px;border-top:1px solid var(--line);padding-top:28px}
.ia-principle-strip>article,.ia-principle-strip>div{min-width:0}
.ia-principle-strip h3{font-size:20px;margin-bottom:14px}
.ia-principle-strip p{font-size:16px;line-height:1.85}
.ia-product-detail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px;align-items:start;margin-top:38px}
.ia-product-detail>div,.ia-product-detail>article{min-width:0}
.ia-product-detail>article{border-top:1px solid var(--line);padding-top:24px}
.ia-product-detail h2{font-size:clamp(30px,3vw,45px);line-height:1.4}
.ia-product-detail h3{font-size:23px;margin-bottom:16px}
.ia-product-detail p{font-size:17px;line-height:1.9}
.ia-product-detail .actions{margin-top:28px}
.ia-product-detail dl{margin-top:26px}
.ia-product-detail dl>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:20px;border-top:1px solid var(--line);padding-block:18px}
.ia-product-detail dd{font-size:15px;line-height:1.85}
.ia-product-detail dt{font-size:13px}
.ia-topic-grid h3 .text-link{font-size:22px;color:var(--ink);padding:0;margin:0;line-height:1.6;align-items:start;justify-content:space-between;width:100%}
.ia-scenario-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px}
.ia-scenario-links>article{min-width:0;border-top:1px solid var(--line);padding-block:24px 0}
.ia-scenario-links h3{margin-bottom:16px}
.ia-scenario-links h3 .text-link{display:flex;font-size:22px;margin:0;padding:0;line-height:1.6;align-items:start;justify-content:space-between}
.ia-scenario-links p{font-size:16px;line-height:1.9}
/* Solutions are a directory of real work followed by an ordered work sequence. */
.solution-list{border-top:1px solid var(--line)}
.solution-entry{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.35fr);column-gap:60px;row-gap:16px;padding-block:34px;border-bottom:1px solid var(--line);min-width:0}
.solution-entry h3{grid-column:1;grid-row:1/span 2;min-width:0}
.solution-entry h3 .text-link{font-size:24px;line-height:1.55;align-items:start;padding:0;margin:0;color:var(--ink)}
.solution-entry>p{grid-column:2;font-size:16px;line-height:1.9;max-width:46em}
.solution-entry>.text-link{grid-column:2;justify-self:start}
.solution-local-nav{padding:18px max(var(--edge),calc((100vw - var(--content))/2));border-bottom:1px solid var(--line);background:var(--sheet);gap:8px 34px}
.solution-local-nav .text-link{font-size:13px}
.solution-steps{list-style:none;padding:0;margin:0;counter-reset:work-step}
.solution-steps>li{counter-increment:work-step;position:relative;display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:44px;padding:28px 0 32px 50px;border-top:1px solid var(--line)}
.solution-steps>li:before{content:counter(work-step,decimal-leading-zero);position:absolute;left:0;top:33px;font:12px var(--mono);color:var(--accent)}
.solution-steps h3{font-size:23px;line-height:1.6}
.solution-steps p{font-size:16px;line-height:1.9}
.solution-demonstration{margin-top:45px;padding-top:32px;border-top:1px solid var(--line)}
.cal-adoption-grid{gap:52px}
.cal-adoption-grid h3{font-size:25px;line-height:1.5}
.cal-adoption-grid p{font-size:17px;line-height:1.9}
.cal-topic-links>a{font-size:18px;line-height:1.7;gap:18px}
.cal-energy-results{gap:42px}
.cal-energy-results h3{font-size:24px;line-height:1.5}
.cal-energy-results p{line-height:1.9}
.cal-case-summary{min-width:0}
.cal-case summary strong{font-size:24px}
.cal-case>div{max-width:none}
html[lang=zh-CN] main :is(h1,h2,h3,h4,p,li,dd){line-break:strict;word-break:normal;overflow-wrap:normal;text-wrap:balance}
html[lang=en] main :is(h1,h2,h3){overflow-wrap:normal;hyphens:none}

@media(min-width:1600px){.hero.cal-hero{min-height:800px}.cal-water{width:82%;right:-3%}.cal-hero-copy{width:52%;max-width:690px}}
@media(max-width:1180px){
  .header{gap:18px}.main-nav{gap:17px}.header-actions{gap:13px}
  .cal-hero-copy{width:55%}.hero.cal-hero{min-height:700px;padding-block:64px 70px}.cal-hero h1{font-size:clamp(43px,4.9vw,58px)}
  .cal-water{width:87%;right:-11%;height:90%}
  .ia-door-grid,.ia-situation-grid,.ia-topic-grid,.ia-principle-strip{gap:30px}
  .ia-product-detail{gap:44px}.section-heading{gap:36px}.section-heading>p{flex-basis:390px}
}
@media(max-width:1000px){
  .header-contact{display:inline-flex}.header-actions [data-present]{display:none}
  .ia-door-grid h3,.ia-situation-grid h3,.ia-topic-grid h3{font-size:22px}
}
@media(max-width:900px){
  .hero.cal-hero{display:flex;flex-direction:column;min-height:0;padding:56px var(--edge) 0;gap:0}
  .cal-hero-copy{width:100%;max-width:720px;margin-inline:auto}
  .cal-hero h1{font-size:clamp(40px,6.2vw,58px);max-width:13em}
  .cal-intro{max-width:38em}.cal-partner-intro{max-width:44em}
  .cal-water{position:relative;inset:auto;order:2;width:100%;height:auto;aspect-ratio:4/3;max-width:720px;margin:-2% auto -3%;align-self:center}
  .cal-water img{object-fit:contain;opacity:1;-webkit-mask-image:linear-gradient(to bottom,transparent 0%,#000 13%,#000 100%);mask-image:linear-gradient(to bottom,transparent 0%,#000 13%,#000 100%)}
  .cal-hero-edge{display:none}
  .ia-door-grid,.ia-situation-grid,.ia-topic-grid{grid-template-columns:1fr 1fr}
  .ia-door-grid>article:last-child:nth-child(odd),.ia-situation-grid>article:last-child:nth-child(odd),.ia-topic-grid>article:last-child:nth-child(odd){grid-column:1/-1;max-width:42em}
  .ia-product-detail{grid-template-columns:1fr;gap:28px}
  .ia-product-detail>article{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:28px}
  .ia-scenario-links{grid-template-columns:1fr;gap:24px}
  .ia-scenario-links>article{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:28px}
  .solution-entry{column-gap:32px}.solution-steps>li{gap:28px}
  .ia-principle-strip{gap:28px}
}
@media(max-width:720px){
  :root{--edge:22px}
  .section{padding-block:56px}.section-heading{margin-bottom:32px;display:block}.section-heading h2{font-size:clamp(29px,7.2vw,38px);max-width:16em}.section-heading>p{font-size:16px;line-height:1.85;margin-top:24px}
  .page-heading{padding-block:44px 40px}.page-heading h1{font-size:clamp(32px,8.2vw,46px);max-width:15em}.page-heading>p:not(.eyebrow){font-size:16px;line-height:1.85}
  .hero.cal-hero{padding-top:44px}.cal-hero h1{font-size:clamp(33px,8.7vw,52px);line-height:1.38;letter-spacing:-.035em}.cal-intro{font-size:17px;margin-top:24px}.cal-partner-intro{font-size:14px}
  .cal-water{width:calc(100% + 24px);max-width:none;margin:4px -12px -12px;aspect-ratio:4/3}
  .cal-offerings{display:flex;flex-direction:column;margin:16px 0 22px;gap:1px}.cal-offerings>span{display:none}.cal-offerings .text-link{font-size:13px;gap:20px}
  .cal-hero .actions{margin-bottom:0;align-items:start;flex-direction:row}
  .cal-hero .button{font-size:13px}
  .ia-door-grid,.ia-situation-grid,.ia-topic-grid,.ia-principle-strip{grid-template-columns:1fr;gap:28px}
  .section>h2{font-size:clamp(29px,7.2vw,38px);margin-bottom:28px}.section>p{font-size:16px}
  .ia-door-grid>article:last-child:nth-child(odd),.ia-situation-grid>article:last-child:nth-child(odd),.ia-topic-grid>article:last-child:nth-child(odd){grid-column:auto;max-width:none}
  .ia-door-grid h3,.ia-situation-grid h3,.ia-topic-grid h3{font-size:23px;margin-bottom:14px}
  .ia-door-grid p,.ia-situation-grid p,.ia-topic-grid p,.ia-principle-strip p{font-size:16px}
  .ia-principle-strip{padding-top:0;border:0}.ia-principle-strip>article,.ia-principle-strip>div{padding-top:24px;border-top:1px solid var(--line)}
  .ia-product-detail h2{font-size:31px}.ia-product-detail p{font-size:16px}.ia-product-detail dl>div{grid-template-columns:76px minmax(0,1fr);gap:14px}
  .ia-product-detail>article,.ia-scenario-links>article{display:block}.ia-product-detail h3{font-size:23px}
  .ia-topic-grid h3 .text-link,.ia-scenario-links h3 .text-link{font-size:22px}
  .solution-entry{display:block;padding-block:28px}.solution-entry h3{margin-bottom:18px}.solution-entry h3 .text-link{font-size:23px}.solution-entry>.text-link{margin-top:14px}
  .solution-local-nav{gap:3px 24px;padding-block:14px}.solution-local-nav .text-link{font-size:12px}
  .solution-steps>li{display:block;padding:26px 0 28px 34px}.solution-steps>li:before{top:33px;font-size:10px}.solution-steps h3{font-size:22px;margin-bottom:16px}
  .cal-adoption-grid,.cal-energy-results{gap:28px}.cal-adoption-grid h3,.cal-energy-results h3{font-size:23px}.cal-adoption-grid p,.cal-energy-results p{font-size:16px}
  .cal-case summary strong{font-size:22px}.cal-case-summary>span{font-size:15px}.cal-case summary{padding-block:24px}
  .contact-email{font-size:clamp(21px,6.1vw,27px)}
  .footer small{white-space:normal}.footer nav{gap:10px 20px}
}
@media(max-width:380px){
  :root{--edge:16px}
  .header{gap:8px}.header-actions{gap:10px}.header-contact{display:none}
  .cal-hero h1{font-size:30px;letter-spacing:-.03em}.page-heading h1{font-size:31px}.section-heading h2{font-size:28px}
  .cal-intro{font-size:16px}.actions{gap:12px 18px}.button{gap:15px;padding:13px 15px}
  .ia-product-detail h2{font-size:28px}.cal-topic-links>a{font-size:16px}
}
@media print{.cal-water{display:none}.hero.cal-hero{min-height:0;display:block;padding:20px 0}.cal-hero-copy{width:100%;max-width:none}.section,.page-heading{padding:20px 0}.ia-door-grid,.ia-situation-grid,.ia-topic-grid,.ia-product-detail,.ia-principle-strip{display:block}.ia-door-grid>article,.ia-situation-grid>article,.ia-topic-grid>article{break-inside:avoid;margin-bottom:20px}}

/* Long directory titles wrap as text instead of a single flex item. */
.ia-topic-grid h3 .text-link,.solution-entry h3 .text-link,.ia-scenario-links h3 .text-link{display:inline;white-space:normal;overflow-wrap:normal;line-height:inherit}

.technical-related{padding-block:24px}

.ia-situation-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:720px){.ia-situation-grid{grid-template-columns:1fr}}

.solution-related-work{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:42px;margin-block:40px}.solution-related-work article{border-top:1px solid var(--line);padding-top:24px}.solution-related-work h3{font-size:23px;margin-bottom:18px}.solution-related-work p{font-size:16px;line-height:1.9}@media(max-width:720px){.solution-related-work{grid-template-columns:1fr;gap:28px}}

/* Match headline size to its real column, rather than viewport growth. */
@media(min-width:901px){.cal-hero-copy{container-type:inline-size}.cal-hero h1{font-size:clamp(38px,9.2cqw,64px)}}
html[lang=zh-CN] main :is(p,li,dd){text-wrap:pretty}
.ia-first-entry{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.ia-first-entry .text-link{font-size:15px;gap:10px}
html[data-route^="solutions/"] .section-heading{display:block;max-width:60em}
html[data-route^="solutions/"] .section-heading h2{margin-bottom:18px}
html[data-route^="solutions/"] .section-heading>p{margin-top:0;max-width:54em;font-size:18px}
html[data-route^="solutions/"] .section{padding-block:56px}
@media(max-width:720px){.ia-first-entry{gap:12px 20px;margin-top:24px}.ia-first-entry .text-link{font-size:14px}html[data-route^="solutions/"] .section-heading>p{font-size:16px}}

.solution-results{margin-top:36px;padding-top:28px;border-top:2px solid var(--accent)}.solution-results>h3{font-size:25px;margin-bottom:24px}.solution-results dl>div{display:grid;grid-template-columns:190px minmax(0,1fr);gap:30px;border-top:1px solid var(--line);padding-block:22px}.solution-results dt{font-size:16px;font-weight:600}.solution-results dd{margin:0;font-size:16px;line-height:1.85;max-width:48em}@media(max-width:720px){.solution-results dl>div{display:block}.solution-results dt{margin-bottom:10px}}