/* Pages: content-specific compositions, not incremental theme overrides. */
html[lang="en"] body{font-family:Arial,"Microsoft YaHei",sans-serif}
html[lang="en"] .hero h1{font-size:clamp(3rem,5vw,5.25rem);line-height:1.12;letter-spacing:-.05em}
.subpage-main.collection-page{width:min(1440px,calc(100% - var(--gutter)*2));padding-top:64px}
.collection-heading{max-width:850px}.collection-heading .eyebrow{margin-bottom:18px}
.collection-heading h1{font-size:clamp(2.125rem,4.5vw,3.75rem);line-height:1.2;letter-spacing:-.04em}
.collection-heading .detail-lead{max-width:650px}
.collection-toolbar{display:flex;gap:24px;align-items:center;justify-content:space-between;margin-top:40px;padding-block:8px 20px;border-bottom:1px solid var(--line)}
.collection-filters{display:flex;gap:8px 28px;flex-wrap:wrap}
.collection-filters button{background:none;border:0;border-bottom:2px solid transparent;padding:8px 0;min-height:44px;font-size:1rem;color:var(--muted)}
.collection-filters button[aria-pressed="true"]{border-color:var(--ink);color:var(--ink);font-weight:600}
#case-count{white-space:nowrap;font-size:.875rem}
.case-index-row{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;padding-block:40px;border-bottom:1px solid var(--line);align-items:center}
.case-index-image{display:block;background:var(--night);border:1px solid var(--line)}
.case-index-image img{width:100%;aspect-ratio:1000/637;object-fit:contain}
.case-index-copy{min-width:0}.case-index-copy h2{font-size:clamp(1.5rem,2.7vw,2.125rem);line-height:1.4;letter-spacing:-.02em;margin-top:12px}
.case-index-copy h2 a{display:block;min-height:44px}
.case-index-copy h2 a:hover{text-decoration:underline;text-underline-offset:6px}
.case-index-copy>p:not(.eyebrow){font-size:1rem;color:var(--muted);line-height:1.85;margin-top:16px;max-width:550px}
.case-index-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:.875rem;color:var(--muted);margin-top:20px}
.case-index-copy>.text-link{margin-top:8px}.collection-disclosure{max-width:880px;margin-top:28px}
.all-cases-link{margin-top:10px}.translation-notice{font-size:.875rem;color:var(--muted);margin-top:24px}
.translation-notice a{text-decoration:underline;text-underline-offset:5px}.scenario-return{margin-top:18px}
.wechat-option{margin-top:28px;border-top:1px solid var(--line);padding-top:16px}
.wechat-option>summary{min-height:44px;cursor:pointer;font-size:1rem}
.primary-email{margin-bottom:18px}.primary-email a{font-size:1.125rem;overflow-wrap:anywhere}
@media(max-width:1099px){.case-index-row{gap:32px}.subpage-main.collection-page{padding-top:40px}}
@media(max-width:760px){
 html[lang="en"] .hero h1{font-size:clamp(2.125rem,9.2vw,2.625rem)}
 html[lang="en"] .hero-work-stages{font-size:.75rem}
 .subpage-main.collection-page{padding-top:32px}.collection-toolbar{align-items:flex-start;flex-direction:column;gap:12px;margin-top:28px}
 .collection-filters{gap:8px 20px}.collection-filters button{font-size:.875rem}
 .case-index-row{grid-template-columns:1fr;gap:24px;padding-block:28px}.case-index-copy h2{font-size:1.5rem}
 .collection-heading h1{font-size:2.125rem}
}
html.home-pages{scroll-snap-type:y proximity}
.home-pages main>section{scroll-snap-align:start;scroll-snap-stop:normal;scroll-margin-top:-80px;padding-block:80px}
.home-pages #site-footer{scroll-snap-align:end}
.home-pages #top{scroll-margin-top:20px}
.home-pages #top.hero{padding:0;min-height:var(--page-height);display:flex;flex-direction:column;overflow:visible}
.hero-content{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:center;align-content:center;gap:64px;flex:1;padding-block:32px}
.hero-copy,.hero-visual{min-width:0}.hero-kicker{font-size:.875rem;line-height:1.6;letter-spacing:.06em;color:var(--muted);margin-bottom:20px}
.hero-kicker>span{margin-inline:16px;color:#8c877d}
.hero h1{font-size:clamp(4rem,min(5.8vw,9svh),5.5rem);line-height:1.18;letter-spacing:-.06em}
.hero-promise{font-size:1.25rem;font-weight:500;line-height:1.7;margin-top:24px}
.hero-explanation{font-size:1.125rem;color:var(--muted);line-height:1.85;margin-top:12px;max-width:470px}
.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:28px}
.hero-visual-image{width:100%;height:auto;aspect-ratio:4/3;max-height:min(470px,50svh);object-fit:contain;animation:arrive .4s ease both}
.hero-visual figcaption{padding:4px 3% 0}
.hero-work-stages{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.875rem;line-height:1.6}
.stage-connector{color:var(--muted)}.hero-visual-note{font-size:.75rem;line-height:1.6;text-align:center;margin-top:8px;color:var(--muted)}
.hero-evidence{display:grid;grid-template-columns:1.15fr repeat(3,1fr);gap:24px;align-items:center;flex-shrink:0;border-top:1px solid var(--line);padding-block:18px 22px}
.hero-evidence>p{font-size:.875rem;line-height:1.7}.hero-evidence>p>span{display:block;font-size:.75rem;color:var(--muted);margin-top:4px}
.hero-evidence>a{display:grid;grid-template-columns:1fr auto;gap:2px 14px;border-left:1px solid var(--line);padding:5px 0 5px 24px;min-height:54px;font-size:1rem;line-height:1.65}
.hero-case-detail{grid-column:1;font-size:.75rem;color:var(--muted)}.hero-evidence>a>span:last-child{grid-column:2;grid-row:1/3;align-self:center;font-size:1.25rem}
.hero-evidence>a:hover>span:first-child{text-decoration:underline;text-underline-offset:5px}
.solutions{border-top:1px solid var(--line)}
.case-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:64px;align-items:start}
.case-sidebar,#case-panel{min-width:0}
.case-copy{padding-top:28px}.case-category{font-size:.875rem;color:var(--muted);margin-bottom:14px}
.case-copy h3{font-size:1.75rem;line-height:1.4;margin-bottom:16px;min-height:3.9em}
.case-copy>p:not(.case-category):not(.case-outcome){font-size:1rem;line-height:1.85;color:var(--muted);min-height:6em}
.case-outcome{margin-top:24px;min-height:88px}.case-outcome strong{display:block;font-size:1.75rem;line-height:1.5;font-weight:500}
.case-outcome span{display:block;font-size:.75rem;color:var(--muted);line-height:1.8;margin-top:4px}.case-copy .text-link{margin-top:12px}
.cooperation{border-top:1px solid var(--line)}
.cooperation>.section-heading{display:block;max-width:760px}
.cooperation>.section-heading .section-intro{max-width:100%;margin-top:16px}
.delivery-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:64px;align-items:start}
.delivery-note{font-size:.875rem;line-height:1.85;color:var(--muted);margin-top:24px}
.delivery-support{display:grid;grid-template-columns:300px minmax(0,1fr);gap:64px;align-items:start;border-top:1px solid var(--line);margin-top:40px;padding-top:28px}
.delivery-support h3{font-size:1.25rem;line-height:1.7}
.delivery-support p{font-size:1rem;line-height:1.85;color:var(--muted)}
@media(max-width:1099px){.delivery-support{grid-template-columns:1fr;gap:12px;margin-top:32px;padding-top:24px}}
.foundation{min-width:0;padding-top:24px}
.foundation .eyebrow{margin-bottom:12px}.foundation h3{font-size:1.625rem;line-height:1.5}
.foundation-intro{font-size:1rem;line-height:1.85;color:var(--muted);margin-top:16px}
.foundation-visual{margin-top:20px}
.foundation-visual img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;mask-image:linear-gradient(90deg,transparent,#000 2%,#000 98%,transparent),linear-gradient(0deg,transparent,#000 10%,#000 90%,transparent);mask-composite:intersect}
.foundation-stages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;margin:4px 0 0;padding:0;gap:16px;font-size:.875rem;line-height:1.6;text-align:center}
.foundation-stages li{position:relative}
.foundation-stages li+li::before{content:"→";position:absolute;left:-16px;width:16px;color:var(--muted)}
.foundation-visual .source-note{margin-top:14px;text-align:center}
.about{background:var(--surface);border-block:1px solid var(--line)}
.about-grid{display:grid;grid-template-columns:minmax(0,.44fr) minmax(0,.56fr);gap:64px;align-items:start}
.about .eyebrow{margin-bottom:18px}.about-visual{margin-top:20px}
.about .eyebrow,.about .about-content>p+p,.about .about-visual figcaption{color:#59554e}
.about-visual img{width:100%;aspect-ratio:3/2;object-fit:contain;mix-blend-mode:multiply}
.about-visual figcaption{font-size:.75rem;color:var(--muted);margin-top:8px}
.about-content{padding-top:2px;align-self:center}.about-lead{font-size:1.3125rem;line-height:1.8}
.about-content>p+p{font-size:1rem;line-height:1.9;color:var(--muted);margin-top:24px}
.team-roles{display:grid;margin-top:32px;border-top:1px solid #c8bfb0}
.team-roles>div{padding-block:22px;border-bottom:1px solid #c8bfb0}
.team-roles h3{font-size:1.125rem}.team-roles p{font-size:1rem;color:#59554e;line-height:1.85;margin-top:8px}
.insight-list{border-top:1px solid var(--line)}
.insight-row{display:grid;grid-template-columns:150px minmax(0,1fr) 24px;gap:24px;align-items:center;padding-block:26px;border-bottom:1px solid var(--line);min-height:100px}
.article-category{font-size:.875rem;color:var(--muted)}.article-title{font-size:1.3125rem;line-height:1.6}
.insight-row>span:last-child{font-size:1.25rem}.insight-row:hover .article-title{text-decoration:underline;text-underline-offset:6px}
.collaboration-section{background:var(--night);color:var(--reverse)}
.collaboration-business{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:64px;align-items:center;padding-bottom:40px}
.collaboration-business h2{font-size:clamp(2.25rem,4.2vw,3.625rem)}
.collaboration-business .eyebrow{color:#b8b5ad;margin-bottom:18px}
.collaboration-intro{font-size:1rem;line-height:1.9;color:#b8b5ad;margin-top:22px;max-width:560px}
.collaboration-business>.button{min-width:190px}
.join-options{display:grid;grid-template-columns:1fr 1fr;gap:64px;border-top:1px solid #ffffff26;padding-top:32px}
.join-options .eyebrow{color:#b8b5ad}.join-options h3{font-size:1.4375rem;margin-block:12px}
.join-options article>p:not(.eyebrow){font-size:1rem;line-height:1.9;color:#b8b5ad;max-width:560px}
.join-options .join-process{font-size:.875rem!important;line-height:1.9;margin-top:18px}
.join-options .text-link{margin-top:14px}.join-options .github-link{color:var(--reverse);font-size:.875rem}
.join-options .github-icon{filter:invert(1)}
.subpage-main{width:min(1120px,calc(100% - var(--gutter)*2));margin-inline:auto;padding-block:44px 80px}
.breadcrumbs{display:flex;gap:10px;flex-wrap:wrap;font-size:.875rem;color:var(--muted);margin-bottom:32px}
.breadcrumbs a{min-height:44px;display:inline-flex;align-items:center;text-decoration:underline;text-underline-offset:4px}
.breadcrumbs>span{display:inline-flex;align-items:center}
.detail-header{max-width:850px}.detail-header .eyebrow{margin-bottom:16px}
.detail-header h1{font-size:clamp(2.125rem,3.6vw,3rem);line-height:1.35}
.detail-lead{font-size:1.125rem;line-height:1.9;color:var(--muted);margin-top:22px;max-width:760px}
.detail-facts{display:flex;flex-wrap:wrap;gap:32px 56px;margin-block:32px 18px}
.detail-facts>div{max-width:300px}.detail-facts strong{display:block;font-size:2rem;line-height:1.5;font-weight:500}
.detail-facts span{display:block;font-size:1rem;margin-top:4px}.detail-facts small{display:block;font-size:.75rem;color:var(--muted);line-height:1.8;margin-top:6px}
.subpage-main>.source-note{max-width:760px}
.detail-section{margin-top:40px;max-width:760px}.detail-section h2,.detail-split h2{font-size:1.5rem;line-height:1.5;margin-bottom:14px}
.detail-section>p,.detail-section li,.detail-split p{font-size:1rem;line-height:1.95;color:var(--muted)}
.detail-steps{list-style:none;counter-reset:steps;margin:20px 0 0;padding:0;border-top:1px solid var(--line)}
.detail-steps>li{counter-increment:steps;display:flex;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.detail-steps>li::before{content:counter(steps,decimal-leading-zero);font: .875rem/1.8 Arial,sans-serif;min-width:24px;color:var(--muted)}
.detail-steps h3{font-size:1.125rem;color:var(--ink);margin-bottom:6px}
.detail-split{max-width:900px;display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:40px;padding-block:24px;border-block:1px solid var(--line)}
.detail-video{margin-block:36px}.detail-video video{width:100%;max-height:70svh;background:var(--night);aspect-ratio:1000/637}
.detail-video figcaption{font-size:.75rem;color:var(--muted);line-height:1.8;margin-top:10px}
.deliverable-list{display:grid;gap:22px}.deliverable-list h3{font-size:1.125rem;margin-bottom:6px}
.deliverable-list p{font-size:1rem;color:var(--muted);line-height:1.9}
.detail-cta{display:flex;justify-content:space-between;align-items:center;gap:32px;background:var(--night);color:var(--reverse);padding:32px;margin-block:44px 24px}
.detail-cta h2{font-size:1.5rem;margin-bottom:8px}.detail-cta p{font-size:1rem;color:#b8b5ad}
.detail-cta .button{flex-shrink:0}
.contact-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:0 64px;align-items:start}
.contact-intent{grid-column:1;grid-row:1}
.contact-intent .detail-header h1{font-size:clamp(2.125rem,3.2vw,2.75rem)}
.contact-options{display:flex;gap:24px;flex-wrap:wrap;margin-top:24px;border-bottom:1px solid var(--line)}
.contact-options button{min-height:48px;padding:8px 0;background:none;border:0;border-bottom:2px solid transparent;font-size:.9375rem;color:var(--muted)}
.contact-options button[aria-pressed="true"]{color:var(--ink);border-color:var(--ink);font-weight:500}
#case-context{margin-top:16px}
.contact-primary{grid-column:2;grid-row:1/4;padding:28px 32px;border-left:1px solid var(--line)}
.contact-primary h2{font-size:1.5rem;margin-bottom:16px}.contact-primary>p{font-size:1rem;color:var(--muted);line-height:1.85}
.wechat-qr{position:relative;overflow:hidden;width:224px;max-width:100%;aspect-ratio:1;background:white;margin-top:24px}
/* Frame the supplied original without changing QR pixels; retain 60px quiet margins. */
.wechat-qr img{position:absolute;max-width:none;width:calc(1094 / 840 * 100%);height:auto;left:calc(-127 / 840 * 100%);top:calc(-445 / 840 * 100%)}
#wechat figcaption{font-size:.875rem;line-height:1.8;color:var(--muted);margin-top:16px;max-width:290px}
.save-qr{margin-top:8px;font-size:.875rem}
.contact-assistance{grid-column:1;grid-row:2;margin-top:32px;border-block:1px solid var(--line)}
.business-intake{grid-column:1;grid-row:2;margin-top:28px}
.business-intake h2{font-size:1.25rem;line-height:1.6;letter-spacing:0}
.business-intake>p{font-size:1rem;line-height:1.85;color:var(--muted);margin-top:12px}
.business-intake>.source-note{font-size:.875rem;line-height:1.8}
.intake-link{max-width:100%;margin-top:20px}
.intake-link:hover{border-color:var(--ink)}
.contact-assistance>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:16px 0;cursor:pointer;font-size:1rem}
.contact-assistance>summary::-webkit-details-marker{display:none}
.contact-assistance>summary::after{content:"+";font-size:1.5rem}.contact-assistance[open]>summary::after{content:"−"}
.contact-form{border:0;padding:4px 0 24px;margin:0;min-width:0}
.contact-form label{display:block;font-size:1rem;line-height:1.8;margin-top:18px}
.contact-form input,.contact-form textarea,.copy-fallback textarea{display:block;width:100%;border:1px solid #a9a195;border-radius:3px;background:#fcfaf6;padding:12px 14px;font-size:1rem;line-height:1.8;margin-top:6px}
.contact-form textarea{min-height:150px;resize:vertical}
.contact-form small{display:block;font-size:.875rem;color:var(--muted);line-height:1.8;margin-top:8px}
.form-actions{display:flex;gap:16px;align-items:center;margin-top:24px}
.form-help,.form-feedback{font-size:.875rem;line-height:1.8;color:var(--muted);margin-top:12px}
.form-feedback:empty{display:none}.copy-fallback{margin-top:16px}.copy-fallback textarea{min-height:180px}
.contact-secondary{grid-column:1;grid-row:3;margin-top:24px}
.contact-secondary h2{font-size:.875rem;color:var(--muted);letter-spacing:0}
.direct-links{display:flex;align-items:flex-start;flex-direction:column;margin-top:8px;gap:4px}
.direct-links a{display:inline-flex;align-items:center;min-height:44px;font-size:.9375rem;text-decoration:underline;text-underline-offset:5px;overflow-wrap:anywhere;max-width:100%}
#data-use{font-size:.75rem;color:var(--muted);line-height:1.9;margin-top:28px;max-width:540px}
html:not([data-js]) .js-only{display:none}
@keyframes arrive{from{opacity:0}to{opacity:1}}
@media(min-width:761px) and (max-width:1099px){
 .hero-content{gap:28px;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr)}
 .hero h1{font-size:clamp(2.75rem,5.7vw,4rem)}
 .hero-promise{font-size:1.125rem}.hero-explanation{font-size:1rem}
 .hero-evidence{gap:18px}.hero-evidence>a{padding-left:18px;font-size:.9375rem}
 .case-layout{grid-template-columns:250px minmax(0,1fr);gap:32px}
 .delivery-layout,.about-grid{grid-template-columns:1fr;gap:36px}
 .about-heading{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:32px}
 .about-heading>.eyebrow{grid-column:1}.about-heading>h2{grid-column:1}
 .about-visual{grid-column:2;grid-row:1/3;margin:0}
 .contact-layout{gap:0 32px}.contact-primary{padding:24px 0 24px 24px}
}
@media(max-width:760px){
 .home-pages main>section{scroll-margin-top:-48px;padding-block:48px}
 .hero-content{grid-template-columns:minmax(0,1fr);gap:0;padding-block:20px;align-content:center}
 .hero-copy{display:contents}.hero-kicker{grid-row:1;font-size:.875rem;margin-bottom:10px}
 .hero h1{grid-row:2;font-size:clamp(2.125rem,10vw,2.625rem);line-height:1.15}
 .hero-visual{grid-row:3;margin-block:8px 10px}
 .hero-visual-image{height:clamp(100px,19svh,180px);max-height:none;aspect-ratio:auto;object-fit:contain}
 .hero-visual figcaption{padding:2px 0 0}.hero-work-stages{font-size:.875rem;gap:6px}
 .hero-visual-note{font-size:.75rem;margin-top:4px}
 .hero-promise{grid-row:4;font-size:1rem;line-height:1.65;margin-top:0}
 .hero-explanation{grid-row:5;max-width:none;font-size:1rem;line-height:1.7;margin-top:8px}
 .hero-actions{grid-row:6;margin-top:14px}
 .hero-evidence{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding-block:8px}
 .hero-evidence>p,.hero-case-detail{display:none}
 .hero-evidence>a{display:flex;justify-content:center;align-items:center;gap:6px;padding:0;border:0;min-height:44px;font-size:.875rem}
 .hero-evidence>a+a{border-left:1px solid var(--line)}.hero-evidence>a>span:last-child{font-size:1rem}
 .case-layout{grid-template-columns:minmax(0,1fr);gap:28px}.case-copy{padding-top:24px}
 .case-copy h3{font-size:1.625rem;min-height:2.8em}.case-copy>p:not(.case-category):not(.case-outcome){min-height:5.55em}
 .case-outcome{min-height:0;margin-top:18px}.case-copy .text-link{margin-top:8px}
 .case-flow{font-size:.875rem;gap:8px}
 .delivery-layout,.about-grid{grid-template-columns:1fr;gap:32px}
 .foundation{padding-top:0}.foundation h3{font-size:1.5rem}
 .foundation-stages{gap:12px}.foundation-stages li+li::before{left:-12px;width:12px}
 .about-visual{margin-top:20px;max-width:540px}.about-content{padding:0}.about-lead{font-size:1.125rem}
 .team-roles{margin-top:24px}
 .insight-row{grid-template-columns:1fr 24px;gap:6px 16px;padding-block:22px}
 .article-category{grid-column:1}.article-title{grid-column:1;font-size:1.125rem}.insight-row>span:last-child{grid-column:2;grid-row:1/3}
 .collaboration-business{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
 .collaboration-business>.button{justify-self:start}.join-options{grid-template-columns:1fr;gap:28px;padding-top:28px}
 .join-options article+article{border-top:1px solid #ffffff26;padding-top:28px}
 .subpage-main{padding-block:28px 48px}.breadcrumbs{margin-bottom:24px}
 .detail-header h1{font-size:2.125rem}.detail-lead{font-size:1rem}
 .detail-facts{gap:24px;margin-block:28px 16px}.detail-facts strong{font-size:1.75rem}
 .detail-section{margin-top:32px}.detail-split{grid-template-columns:1fr;gap:24px}
 .detail-cta{flex-direction:column;align-items:flex-start;padding:24px;gap:24px}
 .contact-layout{grid-template-columns:1fr;gap:0}
 .contact-page>.breadcrumbs{display:none}
 .contact-intent{grid-column:1;grid-row:1}
 .contact-primary{grid-column:1;grid-row:2;border-left:0;border-top:1px solid var(--line);padding:24px 0 0;margin-top:24px}
 .contact-assistance{grid-column:1;grid-row:3;margin-top:28px}
 .business-intake{grid-column:1;grid-row:3;margin-top:28px}
 .contact-secondary{grid-column:1;grid-row:4}
 .contact-options{gap:22px}.wechat-qr{width:216px;margin-top:16px}
}
@media(max-width:760px) and (max-height:720px){
 .hero-content{padding-block:12px}.hero-promise{display:none}
 .hero-visual-image{height:104px}.hero-visual{margin-block:6px}.hero-actions{margin-top:12px}
}
@media(max-width:760px) and (max-height:600px){
 .hero-evidence{display:none}.hero-visual-image{height:80px}.hero-content{padding-block:10px}
}

.case-index-row.no-media{grid-template-columns:1fr}.case-index-row.no-media .case-index-copy{max-width:760px}