:root{--ink:#0f172a;--body:#475569;--muted:#475569;--blue:#0284c7;--border:#e2e8f0;--soft:#f7f9fb;--tint:#eaf4fb}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:94px}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
html:lang(zh) body{font-family:Inter,"Source Han Sans CN","PingFang SC","Microsoft YaHei",Arial,sans-serif}
body.menu-open{overflow:hidden}button,input{font:inherit}a{color:inherit}img{display:block;max-width:100%}[hidden]{display:none!important}
.content-shell{width:min(100% - 48px,1280px);margin-inline:auto}
.skip-link{position:fixed;z-index:1000;top:8px;left:8px;padding:10px 14px;background:var(--ink);color:#fff;transform:translateY(-150%)}.skip-link:focus{transform:none}
.portfolio-header{height:76px;border-bottom:1px solid #edf1f5;background:rgba(255,255,255,.94);position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);transition:background .2s ease,box-shadow .2s ease}
.portfolio-header.scrolled{background:rgba(255,255,255,.78);box-shadow:0 6px 24px rgba(15,23,42,.06)}
.header-inner{height:75px;width:min(100% - 48px,1280px);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:40px}
.brand{text-decoration:none;white-space:nowrap;font-size:18px;line-height:28px}.brand strong{font-weight:500}.brand span{font-weight:300;font-style:italic;color:var(--muted);font-size:17px}
.header-actions,.header-actions nav,.language-switch{display:flex;align-items:center}.header-actions{gap:80px}.header-actions nav{gap:80px}.header-actions nav a{font-size:14px;text-decoration:none}.header-actions nav a:hover,.header-actions nav a:focus-visible{color:var(--blue)}
.language-switch{gap:5px;color:var(--muted);font-size:14px}.language-switch button{border:0;background:none;padding:4px 0;color:var(--muted);cursor:pointer}.language-switch button.active{font-weight:600;color:var(--blue)}
.menu-toggle{display:none;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);padding:8px 12px;cursor:pointer}
.eyebrow,.section-label{font-size:13px;line-height:20px;color:var(--muted);font-weight:400;margin:0}
.portfolio-footer{height:83px;border-top:1px solid var(--border);font-size:12px}.portfolio-footer .content-shell{height:100%;display:flex;align-items:center;justify-content:space-between}.portfolio-footer a{text-decoration:none}.portfolio-footer a:hover{color:var(--blue)}
.reading-progress{position:fixed;top:0;left:0;z-index:100;width:100%;height:2px;pointer-events:none}.reading-progress span{display:block;width:0;height:100%;background:var(--blue)}
/* Home */
.home-hero{min-height:515px;padding:80px 0 64px;border-bottom:1px solid var(--border)}
.home-hero .eyebrow{font-size:11px;line-height:18px}.hero-role{font-size:17px;line-height:26px;margin:32px 0}
.home-hero h1{font-size:72px;font-weight:500;line-height:1.19;letter-spacing:-.038em;margin:0 0 32px;max-width:1280px}.accent{color:var(--blue)}
.hero-intro{font-size:18px;line-height:29px;color:var(--muted);max-width:1200px;margin:0}.hero-cta{display:none}
.home-projects{padding:72px 0 80px;border-bottom:1px solid var(--border)}.home-projects .section-label{margin-bottom:40px}
.project-list{display:grid;gap:80px}.project-row{display:grid;grid-template-columns:700px minmax(0,516px);gap:64px;align-items:center;min-width:0}
.project-art{display:flex;position:relative;flex-direction:column;width:100%;height:460px;padding:40px 56px;overflow:hidden;border-radius:16px;text-decoration:none}.art-label{font-size:12px;line-height:18px;color:var(--muted);white-space:nowrap;letter-spacing:.02em}
.project-art-purchase{background:#eaf4fb;align-items:center;gap:28px}.project-art-purchase .art-label{align-self:stretch}.project-art-purchase img{width:600px;height:313px;object-fit:cover}
.project-art-leads{background:#f7f9fb}
.project-art-ai{background:#f1eefa;padding-top:32px;gap:20px}.ai-mockup{background:#fff;border:1px solid var(--border);border-radius:12px;padding:24px;width:100%;font-size:17px}.ai-mockup div{display:grid;grid-template-columns:120px 1fr;gap:20px;margin-bottom:20px}.ai-mockup div span:first-child{color:var(--blue);font-size:16px}.ai-mockup p{font-size:20px;line-height:30px;margin:8px 0 0}.ai-caption{font-size:13px;color:var(--muted)}
.project-details{min-width:0;display:flex;flex-direction:column;gap:24px}.project-meta{font-size:12px;line-height:18px;color:var(--muted);margin:0}.project-details h2{font-weight:500;font-size:32px;line-height:48px;margin:0 0 24px}.project-details h2 a{text-decoration:none}.project-details h2 a:hover{color:var(--blue)}.project-details p:not(.project-meta){font-size:17px;line-height:26px;color:var(--muted);margin:0 0 24px}
.pill-link{display:inline-flex;justify-content:space-between;align-items:center;gap:14px;width:204px;border-radius:26px;padding:14px 20px;background:var(--ink);color:#fff;font-size:14px;line-height:21px;font-weight:500;text-decoration:none}.pill-link:hover{background:var(--blue)}
.home-contact{min-height:592px;padding:80px 0}.home-contact h2{font-size:36px;line-height:54px;font-weight:500;margin:32px 0}.home-contact p:not(.section-label){font-size:17px;line-height:28px;color:var(--muted);margin:0 0 24px}.contact-links{display:flex;gap:24px;color:var(--blue);font-size:15px;font-weight:500;margin-top:10px}.contact-links span{display:inline-block;min-width:100px;padding:14px 0}
/* Case 1 */
.portfolio-case .case-overview,.portfolio-case .case-chapter,.portfolio-case .case-reflection,.portfolio-case .related-cases{border-bottom:1px solid var(--border)}
.case-overview{padding:56px 0}.case-back{display:inline-block;color:var(--muted);font-size:14px;text-decoration:none;margin-bottom:24px}.case-back:hover{color:var(--blue)}
.case-overview .eyebrow{margin-bottom:24px}.case-overview h1{font-size:42px;line-height:1.38;font-weight:600;margin:0 0 24px;max-width:1280px;letter-spacing:-.02em}.intro-copy{font-size:17px;line-height:29px;color:var(--body);margin:0 0 24px}
.core-question{border-left:3px solid var(--blue);padding:4px 18px;display:grid;gap:9px}.core-question p{font-size:16px;color:var(--body);margin:0}.core-question strong{font-size:19px;line-height:1.5;font-weight:600;color:var(--blue)}
.case-chapter{padding:64px 0}.case-chapter .eyebrow{margin-bottom:24px}.case-chapter h2,.case-reflection h2{font-size:36px;line-height:1.45;font-weight:600;letter-spacing:-.02em;margin:0 0 24px}.chapter-intro,.chapter-lead,.decision-intro,.case-reflection p:not(.eyebrow){font-size:17px;line-height:29px;color:var(--body);margin:0}.chapter-lead{font-size:19px;font-weight:600;margin:20px 0 24px}
.research-cards,.sprint-cards,.stage-cards{display:grid;gap:24px}.research-cards,.sprint-cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.research-cards article{background:var(--soft);border-radius:12px;padding:28px;min-height:276px}.research-cards h3,.sprint-cards h3{font-size:22px;line-height:1.4;font-weight:600;margin:0 0 18px}.research-cards p,.sprint-cards p,.sprint-cards li,.stage-cards p{font-size:16px;line-height:25px;color:var(--body);margin:0}.research-cards .card-insight{color:var(--blue);font-weight:500;margin-top:18px}
.evidence-surface{background:var(--soft);border-radius:12px;overflow:hidden}
.research-evidence{display:grid;grid-template-columns:1fr 1.08fr 1.7fr 1.58fr;gap:28px;margin-top:24px;padding:24px 32px 20px;min-height:295px}.research-evidence figure{min-width:0;margin:0}.research-evidence figcaption,.nps-evidence figcaption{font-size:16px;font-weight:600;margin-bottom:8px}.research-evidence img{width:100%;height:228px;object-fit:cover;object-position:top left}
.sprint-cards{margin-top:24px}.sprint-cards article{min-height:210px;padding:28px;border:1px solid var(--border);border-radius:12px}.sprint-cards ul{padding-left:24px;margin:0}.sprint-cards li{padding-left:0}
.decisions-chapter .chapter-intro{margin-bottom:28px}.decision-block{margin-top:44px}.decision-label{color:var(--blue);font-size:13px;font-weight:600;margin:0 0 14px}.decision-block h3{font-size:27px;line-height:1.4;font-weight:600;margin:0 0 18px}.decision-intro{margin-bottom:16px}
.stage-cards{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.stage-cards.three{grid-template-columns:repeat(3,minmax(0,1fr))}.stage-cards.two{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.stage-cards article{border:1px solid var(--border);border-radius:11px;padding:17px 16px;min-height:171px}.stage-cards article>span{font-size:14px;color:var(--blue);font-weight:500;display:block;margin-bottom:6px}.stage-cards h4{font-size:19px;line-height:30px;font-weight:600;margin:0 0 6px}.stage-cards.two article{min-height:139px;padding:20px 22px}.stage-cards.two h4{font-size:20px}.stage-cards.three article{min-height:171px}.stage-cards .highlight-card{background:#eaf4fb;border-color:#0284c7}.highlight-card h4{color:var(--blue)}.takeaway{font-size:19px;line-height:30px;font-weight:600;margin:20px 0 0}
.delivery-chapter .chapter-intro{margin-bottom:26px}.delivery-chapter .delivery-label{color:var(--blue);font-size:13px;font-weight:600;margin:60px 0 14px}.delivery-chapter .subsection-title{font-size:27px;line-height:1.4;font-weight:600;margin:0 0 18px}.delivery-chapter .subsection-title+.chapter-intro{margin-bottom:26px}
.flow-evidence{padding:40px 32px}.flow-evidence h4{font-size:16px;line-height:24px;width:min(100%,1128px);margin:0 auto 12px;font-weight:600}.screen-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:32px;width:min(100%,1128px);margin:0 auto 36px}.screen-row:last-child{margin-bottom:0}.screen-row img{width:100%;height:auto;aspect-ratio:750/1624;object-fit:contain}
.template-evidence{padding:28px 36px}.template-evidence>p{font-size:16px;color:var(--body);margin:0 0 18px}.template-evidence>p strong{color:var(--blue)}.template-grid{display:grid;grid-template-columns:310px 1fr;gap:40px;align-items:stretch}.template-list{display:grid;gap:8px}.template-list>div{padding:15px 16px;border-radius:12px;background:#eaf4fb;display:flex;flex-direction:column;justify-content:center;gap:6px}.template-list strong{font-size:15px}.template-list span{font-size:13px;color:var(--muted)}.template-grid img{width:100%;height:390px;object-fit:cover;object-position:top left}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:24px 0}.metric-row>div{display:flex;flex-direction:column;gap:7px}.metric-row strong{font-size:44px;line-height:1.2;font-weight:400;color:var(--blue)}.metric-row span{font-size:16px;color:var(--body)}
.nps-evidence{padding:28px 36px;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}.nps-evidence figure{margin:0;min-width:0}.nps-evidence img{width:100%;height:315px;object-fit:contain;object-position:top left}
.case-reflection{padding:64px 0}.case-reflection .eyebrow{margin-bottom:24px}.case-reflection h2{font-size:30px}.case-reflection p:not(.eyebrow){max-width:1200px}
.related-cases{padding:42px 0}.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;margin-top:24px}.related-grid a{display:grid;align-content:start;gap:10px;text-decoration:none}.related-grid a:hover strong{color:var(--blue)}.related-grid span{font-size:13px;color:var(--muted)}.related-grid strong{font-size:21px;font-weight:500}
@media(max-width:1100px){.content-shell,.header-inner{width:min(100% - 48px,1280px)}.project-row{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:36px}.project-art{height:400px;padding:32px}.project-art-purchase img{width:100%;height:auto;max-height:300px;object-fit:contain}.project-details h2{font-size:28px;line-height:1.35}.screen-row{gap:10px}.template-grid{grid-template-columns:260px 1fr;gap:20px}}
@media(max-width:760px){.content-shell,.header-inner{width:min(100% - 36px,1280px)}.portfolio-header,.header-inner{height:68px}.brand{font-size:15px}.brand span{font-size:12px}.menu-toggle{display:block}.header-actions{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:18px;box-shadow:0 15px 30px rgba(15,23,42,.08)}.header-actions.open{display:flex;flex-direction:column;align-items:stretch;gap:20px}.header-actions nav{display:flex;flex-direction:column;align-items:flex-start;gap:14px}.language-switch{justify-content:flex-start}.home-hero{min-height:0;padding:60px 0 70px}.hero-role{font-size:14px;margin:22px 0}.home-hero h1{font-size:clamp(40px,9vw,64px);line-height:1.18;letter-spacing:-.045em}.desktop-break{display:none}.hero-intro{font-size:16px;line-height:1.7}.home-projects{padding:54px 0 70px}.project-list{gap:70px}.project-row{display:block}.project-art{height:auto;min-height:300px;max-height:420px;margin-bottom:24px;padding:28px}.project-art-purchase img{height:auto;max-height:310px}.project-details{gap:12px}.project-details h2{font-size:28px;line-height:1.35;margin-bottom:14px}.project-details p:not(.project-meta){font-size:16px;margin-bottom:20px}.ai-mockup{font-size:14px}.ai-mockup div{grid-template-columns:85px 1fr;gap:8px}.home-contact{padding:60px 0}.home-contact h2{font-size:30px;margin:24px 0}.home-contact p:not(.section-label){font-size:16px}.contact-links{flex-wrap:wrap;gap:16px}.contact-links span{min-width:0}.portfolio-footer{height:auto}.portfolio-footer .content-shell{min-height:72px;gap:12px}
.case-overview{padding:40px 0}.case-overview h1{font-size:clamp(29px,7vw,40px)}.case-overview .eyebrow{font-size:11px}.intro-copy,.chapter-intro,.chapter-lead,.decision-intro,.case-reflection p:not(.eyebrow){font-size:16px;line-height:1.75}.core-question strong{font-size:17px}.case-chapter{padding:54px 0}.case-chapter h2{font-size:clamp(27px,6vw,36px)}.research-cards,.sprint-cards{grid-template-columns:1fr;gap:12px}.research-cards article,.sprint-cards article{min-height:0;padding:22px}.research-evidence{grid-template-columns:repeat(2,1fr);gap:18px;padding:18px}.research-evidence figcaption{font-size:12px}.research-evidence img{height:150px}.stage-cards,.stage-cards.three,.stage-cards.two{grid-template-columns:1fr 1fr;gap:12px}.stage-cards article{min-height:0}.decision-block h3{font-size:24px}.stage-cards h4{font-size:17px}.stage-cards p{font-size:14px;line-height:1.6}.flow-evidence{padding:20px}.screen-row{display:flex;overflow-x:auto;gap:12px;scroll-snap-type:x mandatory}.screen-row img{flex:0 0 34%;width:34%;scroll-snap-align:start}.template-evidence{padding:20px}.template-grid{grid-template-columns:1fr}.template-list{grid-template-columns:1fr 1fr}.template-grid img{height:auto}.metric-row strong{font-size:34px}.metric-row span{font-size:13px}.nps-evidence{grid-template-columns:1fr;padding:20px}.nps-evidence img{height:auto}.related-grid{grid-template-columns:1fr}}
@media(max-width:480px){.stage-cards,.stage-cards.three,.stage-cards.two,.template-list{grid-template-columns:1fr}.research-evidence{grid-template-columns:1fr}.research-evidence img{height:190px}.metric-row{gap:10px}.metric-row strong{font-size:29px}.metric-row span{font-size:12px}.project-art{min-height:270px}}
/* Image-led hero and case previews. */
.home-hero{min-height:0;display:flex;align-items:center;padding:48px 0 56px}
.home-hero-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,.8fr);gap:clamp(36px,5vw,76px);align-items:center}
.home-hero-copy{min-width:0}
.home-hero .hero-role{margin:18px 0 26px}
.home-hero h1{font-size:clamp(48px,4.1vw,58px);line-height:1.12;letter-spacing:-.045em;max-width:none;margin:0 0 28px;text-wrap:balance}
.home-hero [data-lang-panel="zh"] h1{font-size:clamp(54px,4.4vw,62px)}
.hero-rotation{display:inline-grid;max-width:100%;vertical-align:baseline}
.hero-rotation>span{grid-area:1/1;visibility:hidden;opacity:0;transform:translateY(.12em);transition:opacity .5s ease,transform .5s ease,visibility .5s ease}
.hero-rotation>.is-current{visibility:visible;opacity:1;transform:none}
.hero-punct{color:var(--ink)}
.home-hero .hero-intro{max-width:690px;font-size:17px;line-height:1.7}
.hero-actions{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:30px}
.hero-cta{display:inline-flex;align-items:center;gap:10px;color:var(--blue);font-size:15px;font-weight:600;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:4px}
.hero-cta:hover{color:#0369a1}
.home-hero-visual,.case-hero-visual{margin:0;min-width:0}
.home-hero-visual{width:min(100%,380px);justify-self:end}
.home-hero-visual img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:center 32%;border-radius:20px}
.case-overview{padding:56px 0 72px}
.case-overview h1{font-size:clamp(34px,3vw,42px);line-height:1.24;max-width:none;margin:0 0 24px;text-wrap:pretty}
.case-hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.9fr);gap:clamp(40px,5vw,72px);align-items:center}
.case-hero-copy{min-width:0}
.case-hero-copy .eyebrow{margin-bottom:22px}
.case-hero-copy .intro-copy{max-width:700px;margin:0 0 30px}
.case-hero-copy .core-question{background:#f4f9fd;padding:20px 22px;gap:12px}
.case-hero-copy .core-question strong{font-size:21px;line-height:1.45;text-wrap:pretty}
.case-hero-visual img{width:100%;height:auto;aspect-ratio:5/4;object-fit:cover;border-radius:18px}
@media(max-width:900px){.home-hero{min-height:0}.home-hero-grid,.case-hero-grid{grid-template-columns:1fr}.home-hero-visual{width:min(100%,360px);justify-self:start}.case-hero-visual{width:min(100%,520px)}.case-overview h1{max-width:100%}}
@media(max-width:760px){.home-hero{padding:48px 0 56px}.home-hero-grid{gap:32px}.home-hero .hero-role{margin:18px 0 28px}.home-hero h1,.home-hero [data-lang-panel="zh"] h1{font-size:clamp(38px,10vw,54px);line-height:1.16;margin-bottom:26px}.home-hero .hero-intro{font-size:16px;line-height:1.65}.hero-actions{margin-top:24px}.case-overview{padding:40px 0 54px}.case-overview h1{font-size:clamp(30px,8vw,40px);line-height:1.25;margin-bottom:28px}.case-hero-grid{gap:26px}.case-hero-copy .intro-copy{margin-bottom:22px}.case-hero-copy .core-question strong{font-size:18px}.case-hero-copy .core-question{padding:18px 20px}}
@media(prefers-reduced-motion:reduce){.hero-rotation>span{transition:none;transform:none}}

/* Homepage sections are separated by space rather than a rule. */
.portfolio-home .home-hero,.portfolio-home .home-projects,.portfolio-home .portfolio-footer{border:0}
.portfolio-home .home-hero{padding-bottom:152px}
.portfolio-home .home-projects{padding:0 0 80px}

/* Contact heading spans both columns; story and actions begin on the same row. */
.portfolio-home .home-contact{min-height:0;padding:66px 0 76px;background:#f7fafc}
.portfolio-home .contact-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:clamp(48px,6vw,88px);row-gap:32px;align-items:start}
.portfolio-home .contact-heading{grid-column:1/-1}
.portfolio-home .contact-heading .section-label{margin:0 0 18px}
.portfolio-home .contact-heading h2{font-size:clamp(56px,5.3vw,76px);font-weight:600;letter-spacing:-.05em;line-height:1.08;margin:0}
.portfolio-home .contact-heading h2 span:last-child{color:#cbd5e1}
.portfolio-home .contact-story{max-width:610px}
.portfolio-home .contact-story p{font-size:16px;line-height:1.7;margin:0 0 18px}
.portfolio-home .contact-story p:last-child{margin-bottom:0}
.portfolio-home .contact-actions .contact-availability{font-size:16px;line-height:1.7;margin:0 0 24px;max-width:560px}
.portfolio-home .contact-links{display:grid;gap:10px;max-width:none;margin:0}
.portfolio-home .resume-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.portfolio-home .contact-links a,.portfolio-home .contact-resume{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px;padding:12px 18px;border:1px solid var(--border);border-radius:999px;background:#fff;text-decoration:none;font-size:15px;line-height:1.4;color:var(--ink)}
.portfolio-home .contact-links a span,.portfolio-home .contact-resume span{display:block;min-width:0;padding:0;overflow-wrap:anywhere}
.portfolio-home .contact-links a span:last-child,.portfolio-home .contact-resume span:last-child{font-size:20px;color:#94a3b8}
.portfolio-home .contact-links a:hover,.portfolio-home .contact-links a:focus-visible{border-color:#7dbde0;color:var(--blue)}
@media(max-width:900px){
  .portfolio-home .contact-layout{grid-template-columns:1fr;row-gap:26px}
  .portfolio-home .contact-heading{grid-column:1}
}
@media(max-width:760px){
  .portfolio-home .home-hero{padding-bottom:120px}
  .portfolio-home .home-projects{padding-bottom:70px}
  .portfolio-home .home-contact{padding:54px 0 64px}
  .portfolio-home .contact-heading h2{font-size:clamp(42px,10vw,54px)}
  .portfolio-home .contact-story p{font-size:16px}
  .portfolio-home .resume-links{grid-template-columns:1fr}
}

/* Shared Case 1 visual language; the homepage study remains Chinese-only. */
.portfolio-home .project-art-purchase{display:block;height:auto;min-height:0;aspect-ratio:2800/1840;padding:0;background:#f7f9fb}
.portfolio-home .project-art-purchase img{width:100%;height:100%;max-height:none;object-fit:cover}
.portfolio-home .project-art-leads{display:block;height:auto;min-height:0;max-height:none;aspect-ratio:2800/1840;padding:0}
.portfolio-home .project-art-leads img{display:block;width:100%;height:100%;object-fit:cover}
.portfolio-case .case-full-image{margin:32px 0 0}
.portfolio-case .case-full-image a{display:block;border-radius:12px;overflow:hidden;cursor:zoom-in}
.portfolio-case .case-full-image img{display:block;width:100%;height:auto}
.portfolio-case .decision-image{margin-top:28px}
.portfolio-case .reuse-layout{display:grid;grid-template-columns:minmax(0,42%) minmax(0,1fr);gap:56px;align-items:start;width:100%;margin:60px 0 0}
.portfolio-case .reuse-layout .delivery-label{margin:0 0 14px}
.portfolio-case .reuse-layout .chapter-intro{margin:0}
.portfolio-case .reuse-layout .chapter-intro+.chapter-intro{margin-top:14px}
.portfolio-case .reuse-image{width:100%;min-width:0;margin:0}
.portfolio-case .reuse-image a{display:block;height:350px;overflow:hidden;border:1px solid var(--border);border-radius:12px;cursor:zoom-in}
.portfolio-case .reuse-image img{width:100%;height:100%;object-fit:cover;object-position:left bottom;transform:scale(1.2);transform-origin:left top}
@media(max-width:900px){
  .portfolio-case .reuse-layout{grid-template-columns:1fr;gap:24px}
  .portfolio-case .reuse-image{justify-self:center}
  .portfolio-case .reuse-image a{height:auto}
  .portfolio-case .reuse-image img{height:auto;transform:none}
}
.portfolio-case .case-overview,
.portfolio-case .case-chapter,
.portfolio-case .case-reflection,
.portfolio-case .related-cases{border-bottom:0}
html:lang(zh) .portfolio-home .home-contact{background:#f7fafc}
.portfolio-case .related-cases{background:#f7fafc;padding:58px 0 62px}
.portfolio-case .case-reflection .content-shell::before{content:"";display:block;width:76px;height:1px;background:#cbd5e1;margin-bottom:38px}

.portfolio-case .research-chapter .chapter-intro{margin-bottom:34px}
.portfolio-case .research-chapter .chapter-lead{display:none}
.portfolio-case .research-cards{display:block;counter-reset:research}
.portfolio-case .research-cards article{counter-increment:research;position:relative;display:grid;grid-template-columns:270px minmax(0,1fr);grid-template-areas:"heading body" "heading insight";align-items:start;gap:12px 32px;min-height:0;padding:26px 0;background:none;border-radius:0;border-top:1px solid var(--border)}
.portfolio-case .research-cards article:last-child{border-bottom:1px solid var(--border)}
.portfolio-case .research-cards article::before{content:"0" counter(research);position:absolute;top:27px;left:0;color:var(--blue);font-size:13px;font-weight:700;line-height:29px}
.portfolio-case .research-cards h3{grid-area:heading;padding-left:50px;font-size:21px;line-height:1.45;margin:0}
.portfolio-case .research-cards article>p:not(.card-insight){grid-area:body;line-height:1.7}
.portfolio-case .research-cards .card-insight{grid-area:insight;border:0;padding:0;margin:0;color:var(--blue);font-size:16px;font-weight:600;line-height:1.65}
.portfolio-case .research-evidence-label{font-size:12px;letter-spacing:.08em;color:var(--blue);font-weight:700;margin:48px 0 16px}
.portfolio-case .research-evidence{grid-template-columns:1.1fr 1fr 1.53fr 1.28fr;gap:22px;margin-top:0;min-height:0;padding:25px 28px 24px;background:var(--soft);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.portfolio-case .research-evidence figure{display:block}
.portfolio-case .research-evidence figcaption{font-size:14px;line-height:22px;margin:0}
.portfolio-case .research-evidence img{width:100%;height:auto;border:0;border-radius:0;background:none;object-fit:contain;object-position:top left}

.portfolio-case .sprint-cards{counter-reset:sprint;gap:0;margin-top:34px}
.portfolio-case .sprint-cards article{counter-increment:sprint;min-height:0;padding:25px 28px 28px 0;border:0;border-radius:0;background:transparent}
.portfolio-case .sprint-cards article+article{padding-left:28px;border-left:1px solid var(--border)}
.portfolio-case .sprint-cards article::before{content:"QUESTION 0" counter(sprint);display:block;color:var(--blue);font-size:12px;letter-spacing:.06em;font-weight:700;margin-bottom:11px}
.portfolio-case .sprint-cards h3{font-size:20px;margin-bottom:16px}
.portfolio-case .sprint-cards li,
.portfolio-case .sprint-cards p{font-size:15px;line-height:1.7}

.portfolio-case .decisions-chapter .decision-block{margin-top:60px}
.portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three){counter-reset:stage;gap:0;margin-top:32px;background:none;border-radius:0;overflow:visible}
.portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article{counter-increment:stage;min-height:0;padding:0 23px 0 0;border:0;border-radius:0}
.portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article+article{padding-left:23px;border-left:1px solid var(--border)}
.portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article::before{content:"0" counter(stage);display:block;margin-bottom:16px;color:#7dbde0;font-size:32px;line-height:1.1;font-weight:600}
.portfolio-case .decisions-chapter .stage-cards article p{font-size:15px;line-height:1.68}
.portfolio-case .decisions-chapter .stage-cards.two{gap:16px;margin-top:24px;border-radius:0;overflow:visible}
.portfolio-case .decisions-chapter .stage-cards.two article{min-height:139px;padding:20px 22px;border:1px solid var(--border);border-radius:11px;background:#fff}
.portfolio-case .decisions-chapter .stage-cards.two .highlight-card{background:#eaf4fb;border-color:var(--blue)}
.portfolio-case .decisions-chapter .stage-cards.three{grid-template-columns:1fr;gap:0;margin-top:26px;border-top:1px solid var(--border)}
.portfolio-case .decisions-chapter .stage-cards.three article{display:grid;grid-template-columns:240px minmax(0,1fr);grid-template-rows:auto auto;align-items:start;gap:5px 30px;min-height:0;padding:22px 0;border:0;border-bottom:1px solid var(--border);border-radius:0;background:none}
.portfolio-case .decisions-chapter .stage-cards.three article>span{grid-column:1;grid-row:1;margin:0;font-size:14px;line-height:21px}
.portfolio-case .decisions-chapter .stage-cards.three h4{grid-column:1;grid-row:2;margin:0;font-size:19px;line-height:27px;font-weight:600}
.portfolio-case .decisions-chapter .stage-cards.three article>p{grid-column:2;grid-row:2;margin:0}

@media(max-width:1100px){
  .portfolio-case .research-cards article{grid-template-columns:220px minmax(0,1fr);column-gap:24px}
  .portfolio-case .research-evidence{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:25px}
  .portfolio-case .decisions-chapter .stage-cards.three article{grid-template-columns:190px minmax(0,1fr)}
}
@media(max-width:760px){
  .portfolio-case .research-chapter .chapter-intro{margin-bottom:26px}
  .portfolio-case .research-cards article{grid-template-columns:1fr;grid-template-areas:"heading" "body" "insight";gap:10px;padding:22px 0}
  .portfolio-case .research-cards article::before{top:21px}
  .portfolio-case .research-cards h3,
  .portfolio-case .research-cards article>p{padding-left:44px}
  .portfolio-case .research-cards article>.card-insight{padding-left:44px}
  .portfolio-case .research-evidence{grid-template-columns:repeat(2,minmax(0,1fr));padding:20px}
  .portfolio-case .research-evidence img{height:auto}
  .portfolio-case .sprint-cards{grid-template-columns:1fr;gap:0}
  .portfolio-case .sprint-cards article,
  .portfolio-case .sprint-cards article+article{padding:22px 0 25px;border:0}
  .portfolio-case .sprint-cards article+article{border-top:1px solid var(--border)}
  .portfolio-case .decisions-chapter .decision-block{margin-top:48px}
  .portfolio-case .delivery-chapter>.content-shell>.delivery-label,
  .portfolio-case .reuse-layout{margin-top:48px}
  .portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three){grid-template-columns:1fr}
  .portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article,
  .portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article+article{padding:19px 0 20px;border:0}
  .portfolio-case .decisions-chapter .stage-cards:not(.two):not(.three) article+article{border-top:1px solid var(--border)}
  .portfolio-case .decisions-chapter .stage-cards.two{grid-template-columns:1fr;gap:12px}
  .portfolio-case .decisions-chapter .stage-cards.three article{grid-template-columns:1fr;grid-template-rows:auto auto auto;gap:4px;padding:18px 0}
  .portfolio-case .decisions-chapter .stage-cards.three article>p{grid-column:1;grid-row:3;margin-top:7px}
}
@media(max-width:480px){
  .portfolio-case .research-evidence{grid-template-columns:1fr;padding:18px}
  .portfolio-case .research-evidence img{height:auto}
}

html:lang(en) .case-hero-copy h1{font-size:clamp(32px,2.6vw,38px)}

/* Compact mobile navigation for the two active portfolio pages. */
html:lang(zh) .portfolio-home .brand span,
html:lang(zh) .portfolio-case .brand span{font-style:italic;font-weight:300;color:#94a3b8}
html:lang(zh) .portfolio-home .brand strong,
html:lang(zh) .portfolio-case .brand strong{font-weight:600}
.menu-icon-button{position:relative;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:0;border-radius:10px;background:transparent}
.menu-icon-button:hover{background:transparent}
.menu-icon-button:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.menu-icon{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:20px;height:20px}
.menu-icon span{display:block;width:20px;height:2px;border-radius:2px;background:#64748b;transition:transform .2s ease,opacity .2s ease}
.menu-icon-button[aria-expanded="true"] .menu-icon span:first-child{transform:translateY(6px) rotate(45deg)}
.menu-icon-button[aria-expanded="true"] .menu-icon span:nth-child(2){opacity:0}
.menu-icon-button[aria-expanded="true"] .menu-icon span:last-child{transform:translateY(-6px) rotate(-45deg)}
.menu-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:760px){
  .menu-icon-button{display:inline-flex;flex:0 0 44px}
  .header-actions.open,.header-actions nav{gap:0}
  .header-actions nav a,.header-actions .language-switch{display:flex;align-items:center;min-height:48px}
  html:lang(zh) .portfolio-home .brand,
  html:lang(zh) .portfolio-case .brand{display:flex;align-items:baseline;gap:0;font-size:15px;min-width:0}
  html:lang(zh) .portfolio-home .brand span,
  html:lang(zh) .portfolio-case .brand span{font-size:13px}
}
@media(prefers-reduced-motion:reduce){.menu-icon span{transition:none}}

/* Case 2 extends the Case 1 type, spacing, and evidence system. */
.portfolio-lead .brand strong{font-weight:600}
.portfolio-lead .brand span{font-weight:300;font-style:italic;color:#94a3b8}
.portfolio-lead .language-switch a{color:var(--muted);text-decoration:none;padding:4px 0}
.portfolio-lead .language-switch a:hover,.portfolio-lead .language-switch a:focus-visible{color:var(--blue)}
.portfolio-lead .language-switch .active{font-weight:600;color:var(--blue)}
.portfolio-lead .eyebrow{font-size:13px;line-height:20px;color:var(--muted)}
.portfolio-lead .case-back{margin-bottom:24px}
.portfolio-lead h1,.portfolio-lead h2,.portfolio-lead h3,.portfolio-lead h4,.portfolio-lead p{overflow-wrap:break-word}
.portfolio-lead .lead-hero{padding:56px 0 72px}
.lead-hero-text .eyebrow{margin-bottom:24px}
.portfolio-lead .lead-hero h1{font-size:clamp(34px,3vw,42px);line-height:1.24;letter-spacing:-.02em;font-weight:600;margin:0 0 24px;text-wrap:pretty}
.lead-title-end{white-space:nowrap}
.lead-hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.9fr);gap:clamp(40px,5vw,72px);align-items:start}
.lead-hero-text{min-width:0}
.lead-hero-subtitle{font-size:19px;line-height:1.55;font-weight:600;color:var(--ink);margin:0 0 20px}
.lead-hero-text>p:not(.lead-hero-subtitle){font-size:17px;line-height:29px;color:var(--body);margin:0 0 11px}
.lead-question{display:grid;gap:9px;margin-top:29px;padding:19px 22px;border-left:3px solid var(--blue);background:#f4f9fd}
.lead-question span{font-size:14px;color:var(--body)}
.lead-question p{font-size:19px;line-height:1.55;font-weight:600;color:var(--blue);margin:0}
.lead-evidence{min-width:0;margin:0}
.lead-evidence a{display:block}
.lead-evidence img{display:block;width:100%;height:auto}
.lead-evidence-wide{margin-top:28px}
.portfolio-lead .lead-section{padding:64px 0}
.lead-section-head{margin-bottom:20px}
.lead-section-head .eyebrow{margin-bottom:24px}
.portfolio-lead .lead-section h2,.portfolio-lead .lead-reflection h2{font-size:36px;line-height:1.45;letter-spacing:-.02em;font-weight:600;margin:0 0 24px}
.lead-section-head>p:not(.eyebrow){font-size:17px;line-height:29px;color:var(--body);margin:0}
.lead-body-copy p,.lead-support-copy,.lead-reference-principle,.lead-reference-notes p,.lead-model-copy p,.lead-experience-detail p,.lead-result p:not(.eyebrow),.lead-reflection p:not(.eyebrow){font-size:17px;line-height:29px;color:var(--body);margin:0 0 10px}
.portfolio-lead strong{color:var(--ink)}
.lead-process{margin:25px 0 25px}
.lead-small-label,.lead-sub-label{font-size:13px;line-height:20px;font-weight:600;color:var(--blue)}
.lead-small-label{margin:0 0 13px}
.lead-process ol{list-style:none;counter-reset:lead-process;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px;margin:0;padding:0}
.lead-process li{counter-increment:lead-process;position:relative;display:flex;align-items:center;gap:12px;min-width:0;min-height:72px;padding:12px 15px;border:1px solid var(--border);border-radius:10px;background:var(--soft);font-size:16px;line-height:1.45;font-weight:600}
.lead-process li::before{content:"0" counter(lead-process);flex:0 0 auto;color:var(--blue);font-size:13px;font-weight:700}
.lead-process li:not(:last-child)::after{content:"→";position:absolute;right:-22px;top:50%;transform:translateY(-50%);width:20px;text-align:center;color:var(--blue);font-size:20px;line-height:1}
.lead-support-copy{margin:0}
.lead-reference-principle{margin:0 0 23px}
.lead-table-wrap{overflow-x:auto}
.lead-table-wrap table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:16px;line-height:1.6;text-align:left}
.lead-table-wrap caption{text-align:left;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.05em;margin-bottom:12px}
.lead-table-wrap th{padding:15px clamp(12px,1.7vw,24px);border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:#edf4f8;font-size:13px;letter-spacing:.03em;color:var(--blue);font-weight:700;white-space:nowrap}
.lead-table-wrap th:first-child{width:clamp(220px,24vw,340px)}
.lead-table-wrap th:nth-child(2){width:clamp(175px,18vw,260px)}
.lead-table-wrap td{padding:18px clamp(12px,1.7vw,24px);border-bottom:1px solid var(--border);color:var(--body);vertical-align:top}
.lead-table-wrap td:first-child{font-weight:600;color:var(--ink)}
.lead-table-wrap tr.lead-key-milestone td{background:#eaf4fb;color:var(--ink);font-weight:600;border-bottom-color:#d5eaf5}
.lead-table-wrap tr.lead-key-milestone td:first-child{box-shadow:inset 4px 0 0 var(--blue)}
.lead-table-wrap tr.lead-key-milestone td:last-child{color:var(--blue)}
.lead-reference-notes{margin-top:22px}
.lead-reference-notes p:last-child{margin-bottom:0}
.portfolio-lead #model .lead-section-head{margin-bottom:0}
.lead-model-block{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,5vw,72px);align-items:center;margin-top:44px;padding-top:45px}
.lead-model-block.lead-model-reverse .lead-model-copy{grid-column:2;grid-row:1}
.lead-model-block.lead-model-reverse .lead-evidence{grid-column:1;grid-row:1}
.lead-model-copy .lead-sub-label{display:block;margin-bottom:13px}
.portfolio-lead .lead-model-copy h3,.portfolio-lead .lead-check h3{font-size:27px;line-height:1.4;font-weight:600;margin:0 0 18px}
.lead-model-copy p:last-child{margin-bottom:0}
.lead-check{margin-top:48px;padding-top:45px}
.lead-check-heading .lead-sub-label{display:block;margin-bottom:13px}
.lead-check-heading p{font-size:17px;line-height:29px;color:var(--body);margin:0}
.lead-check-table-wrap{margin-top:24px;overflow-x:auto}
.lead-check-table-wrap table{width:100%;border-collapse:collapse;table-layout:fixed;text-align:left}
.lead-check-table-wrap caption{text-align:left;margin-bottom:12px;color:var(--blue);font-size:12px;line-height:1.5;font-weight:700;letter-spacing:.04em}
.lead-check-table-wrap th{width:50%;padding:13px 20px;background:#f7f9fb;border-top:1px solid var(--border);border-bottom:1px solid var(--border);color:var(--blue);font-size:13px;line-height:1.5;font-weight:700}
.lead-check-table-wrap td{padding:19px 20px;border-bottom:1px solid var(--border);color:var(--body);font-size:15px;line-height:1.7;vertical-align:top}
.lead-check-table-wrap td+td{border-left:1px solid var(--border)}
.lead-check-table-wrap td strong{color:var(--ink)}
.lead-experience-intro{font-size:17px;line-height:29px;color:var(--body);margin:0 0 10px}
.lead-stage-system{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:32px 0}
.lead-stage-system>article{min-width:0;padding:0 24px 0 0}
.lead-stage-system>article+article{padding-left:24px;border-left:1px solid var(--border)}
.lead-stage-system .lead-stage-number{display:block;margin-bottom:16px;color:#7dbde0;font-size:32px;line-height:1.1;font-weight:600}
.lead-stage-system .lead-stage-kicker{display:block;margin-bottom:7px;color:var(--blue);font-size:15px;line-height:1.5;font-weight:500}
.portfolio-lead .lead-stage-system h3{font-size:22px;line-height:1.4;margin:0 0 16px;font-weight:600}
.lead-stage-system p{font-size:15px;line-height:1.65;color:var(--body);margin:0 0 8px}
.lead-stage-system p:last-child{margin-bottom:0}
.lead-stage-system p strong{color:var(--ink);font-weight:600}
.lead-experience-detail p:last-child{margin-bottom:0}
.portfolio-lead .lead-result{padding-top:64px}
.lead-result-grid{display:block}
.lead-result-grid>.eyebrow,.lead-result-grid>div>.eyebrow{margin-bottom:24px}
.lead-result-grid>div:nth-child(2)>p{margin:0}
.lead-result-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;width:100%;margin-top:24px}
.lead-result-card{min-height:139px;padding:20px 22px;border:1px solid var(--border);border-radius:11px;background:#fff}
.lead-result-card-after{border-color:#a6d8f4;background:#eaf4fb}
.lead-result-card span{display:block;margin-bottom:9px;color:var(--muted);font-size:12px;line-height:1.4;font-weight:700;letter-spacing:.08em}
.lead-result-card-after span{color:var(--blue)}
.portfolio-lead .lead-result-card h3{margin:0 0 6px;color:var(--ink);font-size:20px;line-height:1.5;font-weight:600}
.portfolio-lead .lead-result-card p{margin:0;color:var(--body);font-size:15px;line-height:1.68}
.lead-reflection{padding:64px 0 70px}
.lead-reflection .content-shell::before{content:"";display:block;width:76px;height:1px;background:#cbd5e1;margin-bottom:38px}
.lead-reflection .eyebrow{margin-bottom:24px}
.portfolio-lead .lead-reflection h2{font-size:30px}
.lead-reflection p:not(.eyebrow){max-width:none}
.lead-more{padding:58px 0 62px;background:#f7fafc}
.lead-more .eyebrow{margin-bottom:23px}
.lead-more-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.lead-more a{display:grid;align-content:start;gap:9px;text-decoration:none}
.lead-more a span{color:var(--body);font-size:13px}
.lead-more a strong{font-size:21px;line-height:1.4;font-weight:500}
.lead-more a:hover strong{color:var(--blue)}
@media(max-width:900px){
  .lead-hero-grid,.lead-model-block{grid-template-columns:1fr}
  .lead-model-block.lead-model-reverse .lead-model-copy,.lead-model-block.lead-model-reverse .lead-evidence{grid-column:1;grid-row:auto}
  .lead-process ol{grid-template-columns:1fr;gap:25px}
  .lead-process li{min-height:64px}
  .lead-process li:not(:last-child)::after{content:"↓";right:50%;top:auto;bottom:-24px;transform:translateX(50%)}
}
@media(max-width:760px){
  .portfolio-lead .brand{display:flex;align-items:baseline;font-size:15px;min-width:0}.portfolio-lead .brand span{font-size:13px}
  .portfolio-lead .header-actions.open,.portfolio-lead .header-actions nav{gap:0}
  .portfolio-lead .header-actions nav a,.portfolio-lead .header-actions .language-switch{display:flex;align-items:center;min-height:48px}
  .portfolio-lead .lead-hero{padding:40px 0 54px}
  .portfolio-lead .lead-hero h1{font-size:clamp(30px,8vw,40px);line-height:1.25;margin-bottom:26px}
  .lead-hero-grid{gap:27px}
  .lead-hero-subtitle{font-size:18px}
  .lead-hero-text>p:not(.lead-hero-subtitle){font-size:16px;line-height:1.75}
  .lead-question{padding:17px 19px;margin-top:23px}.lead-question p{font-size:17px}
  .portfolio-lead .lead-section{padding:54px 0}
  .portfolio-lead .lead-section h2{font-size:clamp(27px,6vw,36px)}
  .lead-section-head{margin-bottom:19px}.lead-section-head>p:not(.eyebrow){font-size:16px;line-height:1.75}
  .lead-reference-principle,.lead-reference-notes p,.lead-body-copy p,.lead-support-copy,.lead-model-copy p,.lead-experience-detail p{font-size:16px;line-height:1.75}
  .lead-model-block{gap:22px;margin-top:39px;padding-top:37px}
  .lead-check{margin-top:39px;padding-top:37px}
  .lead-check-heading p{font-size:16px;line-height:1.75}
  .lead-check-table-wrap{overflow:visible}
  .lead-check-table-wrap table,.lead-check-table-wrap tbody,.lead-check-table-wrap tr,.lead-check-table-wrap td{display:block;width:100%}
  .lead-check-table-wrap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
  .lead-check-table-wrap tr{padding:17px 0;border-top:1px solid var(--border)}
  .lead-check-table-wrap tbody tr:last-child{border-bottom:1px solid var(--border)}
  .lead-check-table-wrap td{padding:3px 0;border:0;font-size:15px}
  .lead-check-table-wrap td+td{margin-top:9px;border-left:0}
  .lead-check-table-wrap td[data-label]::before{content:attr(data-label);display:block;margin-bottom:3px;color:var(--blue);font-size:12px;font-weight:700}
  .portfolio-lead .lead-model-copy h3,.portfolio-lead .lead-check h3{font-size:24px}
  .lead-stage-system{grid-template-columns:1fr;gap:0}
  .lead-stage-system>article,.lead-stage-system>article+article{padding:22px 0;border-left:0}
  .lead-stage-system>article:first-child{padding-top:0}
  .lead-stage-system>article+article{border-top:1px solid var(--border)}
  .lead-more-grid{grid-template-columns:1fr;gap:30px}
  .lead-table-wrap{overflow:visible}
  .lead-table-wrap table,.lead-table-wrap tbody,.lead-table-wrap tr,.lead-table-wrap td{display:block;width:100%}
  .lead-table-wrap caption{display:block;width:100%}
  .lead-table-wrap thead{display:none}
  .lead-table-wrap tr{padding:17px 0;border-top:1px solid var(--border)}
  .lead-table-wrap tbody tr:last-child{border-bottom:1px solid var(--border)}
  .lead-table-wrap td{display:flex;gap:12px;padding:3px 0;border:0;font-size:15px;line-height:1.65}
  .lead-table-wrap td:first-child{display:block;margin-bottom:8px;font-size:16px}
  .lead-table-wrap td[data-label]::before{content:attr(data-label);flex:0 0 54px;color:var(--blue);font-size:12px;font-weight:700;line-height:25px}
  .lead-table-wrap tr.lead-key-milestone{padding:18px 16px 18px 20px;background:#eaf4fb;box-shadow:inset 4px 0 0 var(--blue);border-top:0}
  .lead-table-wrap tr.lead-key-milestone td{background:transparent;box-shadow:none}
  .lead-table-wrap tr.lead-key-milestone td:first-child{box-shadow:none}
  .lead-result-compare{grid-template-columns:1fr;gap:12px}
  .lead-result-card{min-height:0}
  .lead-reflection{padding:54px 0 60px}.lead-more{padding:54px 0 60px}
}
/* Case-study introductions use the existing copy and design challenge as a text-led hero. */
.portfolio-case .case-overview,
.portfolio-lead .lead-hero{padding-bottom:48px}
.portfolio-case .case-hero-grid,
.portfolio-lead .lead-hero-grid{display:block}
.portfolio-case .case-hero-copy,
.portfolio-lead .lead-hero-text{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);column-gap:clamp(40px,5vw,76px);align-items:start}
.portfolio-case .case-hero-copy .eyebrow,
.portfolio-case .case-hero-copy h1,
.portfolio-lead .lead-hero-text .eyebrow,
.portfolio-lead .lead-hero-text h1,
.portfolio-lead .lead-hero-subtitle{grid-column:1/-1}
.portfolio-case .case-hero-copy .intro-copy{grid-column:1;max-width:none;margin:0}
.portfolio-case .case-hero-copy .core-question{grid-column:2;margin:0}
.portfolio-lead .lead-hero-text>p:not(.eyebrow):not(.lead-hero-subtitle){grid-column:1}
.portfolio-lead .lead-question{grid-column:2;grid-row:3/span 2;margin-top:0}
@media(max-width:900px){
  .portfolio-case .case-hero-copy,
  .portfolio-lead .lead-hero-text{grid-template-columns:minmax(0,1fr)}
  .portfolio-case .case-hero-copy .eyebrow,
  .portfolio-case .case-hero-copy h1,
  .portfolio-case .case-hero-copy .intro-copy,
  .portfolio-case .case-hero-copy .core-question,
  .portfolio-lead .lead-hero-text .eyebrow,
  .portfolio-lead .lead-hero-text h1,
  .portfolio-lead .lead-hero-subtitle,
  .portfolio-lead .lead-hero-text>p:not(.eyebrow):not(.lead-hero-subtitle),
  .portfolio-lead .lead-question{grid-column:1;grid-row:auto}
  .portfolio-case .case-hero-copy .core-question,
  .portfolio-lead .lead-question{margin-top:22px}
}
@media(max-width:760px){
  .portfolio-case .case-overview,
  .portfolio-lead .lead-hero{padding-bottom:38px}
}

/* AI Practice follows the white editorial case-study system. */
.portfolio-home .project-art-ai{display:block;height:auto;min-height:0;aspect-ratio:2800/1840;padding:0;background:#f3f0fc}
.portfolio-home .project-art-ai img{width:100%;height:100%;object-fit:cover}
.portfolio-ai .ai-overview{padding:56px 0 70px}
.ai-hero-copy{min-width:0}.ai-hero-copy .eyebrow{margin-bottom:24px}
.portfolio-ai .ai-hero-copy h1{font-size:clamp(38px,3.4vw,48px);line-height:1.25;letter-spacing:-.025em;font-weight:600;margin:0 0 24px}
.portfolio-ai .ai-hero-copy .intro-copy{margin:0}
.ai-question-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:33px}
.ai-question-list a{display:grid;grid-template-rows:auto 1fr;grid-template-columns:minmax(0,1fr) 20px;column-gap:14px;row-gap:23px;align-items:start;min-height:160px;padding:24px 24px 22px;border-radius:14px;background:#eaf4fb;text-decoration:none}
.ai-question-list span{font-size:12px;line-height:1.4;color:var(--blue);font-weight:700;letter-spacing:.035em}
.ai-question-list strong{grid-column:1;grid-row:2;font-size:19px;line-height:1.4;font-weight:600}.ai-question-list i{grid-column:2;grid-row:2;justify-self:end;align-self:end;font-size:22px;line-height:1;font-style:normal;color:var(--blue);transition:transform .2s ease}
.ai-question-list a:hover strong,.ai-question-list a:focus-visible strong{color:var(--blue)}
.ai-question-list a:hover i,.ai-question-list a:focus-visible i{transform:translate(2px,-2px)}
.portfolio-ai .ai-chapter{padding:70px 0 76px;background:#fff}
.portfolio-ai .ai-chapter .eyebrow{margin-bottom:18px}
.portfolio-ai .ai-chapter h2{font-size:clamp(31px,3vw,38px);line-height:1.3;margin:0 0 30px}
.ai-prose,.ai-wide-prose{width:100%;max-width:none}
.ai-prose p,.ai-wide-prose p{font-size:17px;line-height:1.76;color:var(--body);margin:0 0 17px}
.ai-prose h3,.ai-wide-prose h3{font-size:24px;line-height:1.35;margin:26px 0 15px;font-weight:600;color:var(--ink)}
.ai-prose p:first-child,.ai-wide-prose p:first-child{margin-top:0}
.ai-prose strong,.ai-wide-prose strong{color:var(--ink);font-weight:600}
.ai-review-sequence{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px;list-style:none;margin:24px 0;padding:0;color:var(--body)}
.ai-review-sequence li{position:relative;display:flex;align-items:center;min-height:92px;padding:15px 17px;border-radius:12px;background:#eaf4fb;color:var(--ink);font-size:15px;font-weight:600;line-height:1.35}
.ai-review-sequence li:not(:last-child)::before{content:"";position:absolute;left:100%;top:50%;width:24px;height:1px;background:var(--blue)}
.ai-review-sequence li:not(:last-child)::after{content:"";position:absolute;left:calc(100% + 17px);top:calc(50% - 3px);width:6px;height:6px;border-top:1px solid var(--blue);border-right:1px solid var(--blue);transform:rotate(45deg)}
.ai-wide-prose .ai-statement{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin:18px 0 27px}
.ai-visual{width:100%;margin:34px 0 0}.ai-visual a{display:block;line-height:0;border-radius:12px;overflow:hidden}
.ai-visual a:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
.ai-visual img{display:block;width:100%;height:auto;border-radius:12px}
.ai-visual+.ai-wide-prose{margin-top:29px}
.portfolio-ai .ai-reflection{background:#fff;padding:64px 0 70px}
.portfolio-ai .ai-reflection .eyebrow{margin-bottom:24px}
.portfolio-ai .ai-reflection h2{font-size:30px;line-height:1.45}
.portfolio-ai .ai-reflection p:not(.eyebrow){max-width:none;margin:0 0 18px}
.portfolio-ai .ai-reflection p:last-child{margin-bottom:0}
@media(max-width:760px){
  .portfolio-ai .ai-overview{padding:40px 0 55px}
  .portfolio-ai .ai-hero-copy h1{font-size:clamp(30px,8vw,42px);line-height:1.26;margin-bottom:20px}
  .ai-question-list{grid-template-columns:1fr;gap:10px;margin-top:23px}.ai-question-list a{grid-template-rows:auto auto;min-height:0;padding:18px 20px;row-gap:10px}
  .ai-question-list span{font-size:11px}.ai-question-list strong{font-size:17px}.ai-question-list i{font-size:19px}
  .portfolio-ai .ai-chapter{padding:54px 0 60px}.portfolio-ai .ai-chapter h2{font-size:clamp(28px,7vw,35px);margin-bottom:22px}
  .ai-prose p,.ai-wide-prose p{font-size:16px;line-height:1.75}.ai-prose h3,.ai-wide-prose h3{font-size:22px}
  .ai-review-sequence{grid-template-columns:1fr;gap:16px}.ai-review-sequence li{min-height:56px;padding:12px 16px;font-size:14px}.ai-review-sequence li:not(:last-child)::before{display:block;left:50%;top:100%;width:1px;height:16px}.ai-review-sequence li:not(:last-child)::after{display:block;left:calc(50% - 3px);top:calc(100% + 7px);transform:rotate(135deg)}
  .ai-visual{margin-top:25px}.ai-visual+.ai-wide-prose{margin-top:25px}
  .portfolio-ai .ai-reflection{padding:54px 0 60px}.portfolio-ai .ai-reflection h2{font-size:clamp(27px,6vw,36px)}
}