:root{--ink:#101926;--blue:#1649e7;--muted:#596574;--rule:#d6dce4;--silver:#f0f2f5;--deep:#0e1520}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);font-family:Arial,'Microsoft YaHei','PingFang SC',sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #6595ff;outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.1;letter-spacing:-.045em;font-weight:500}.wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}.skip{position:absolute;top:-90px;left:10px;background:white;padding:12px;z-index:50}.skip:focus{top:5px}header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:30px;background:white;padding:16px 48px;border-bottom:1px solid var(--rule)}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand img{width:49px;height:47px;object-fit:contain}.brand>span{font-size:27px;font-weight:800;letter-spacing:1px;line-height:1}nav{display:flex;gap:30px;align-items:center;margin-left:auto}nav a{font-size:14px}nav a:hover{color:var(--blue)}.header-actions{display:flex;align-items:center;gap:25px}.languages{display:flex;align-items:center;gap:8px;font-size:13px;white-space:nowrap}.languages>span{color:#a6afbd}.languages a{padding:5px 0;color:#627085}.languages a.active{color:var(--blue);font-weight:700;border-bottom:2px solid var(--blue)}.nav-cta{background:var(--blue);color:white;padding:12px 18px;font-size:14px;white-space:nowrap}.nav-cta span{margin-left:18px}.menu{display:none}.hero{position:relative;isolation:isolate;color:white;background:var(--deep);overflow:hidden}.hero-image{position:absolute;z-index:-3;width:100%;height:100%;object-fit:cover;object-position:center 55%;inset:0}.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(6,13,23,.68),rgba(6,13,23,.1) 65%,transparent)}.hero-inner{position:relative;min-height:650px;padding-top:92px;padding-bottom:88px}.eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:1.6px;color:var(--blue)}.hero .eyebrow{color:#dbe5f8;display:flex;align-items:center;gap:12px}.hero .eyebrow>span{display:inline-block;width:30px;height:2px;background:#497bff}.hero h1{font-size:clamp(52px,6.3vw,90px);letter-spacing:-.06em;line-height:1.03;margin-top:30px;max-width:780px}.hero-inner>p{font-size:19px;color:#d7deea;margin-top:26px;max-width:530px;line-height:1.65}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:46px;padding:16px 23px;border:none;font-size:14px;font-weight:600}.primary{background:var(--blue);color:white;margin-top:32px}.primary:hover,.nav-cta:hover{background:#0d38bf}.hero-bottom{position:absolute;bottom:24px;left:0;right:0;display:flex;justify-content:space-between;gap:24px;color:#bcc6d8;font-size:11px;letter-spacing:.6px}.ribbon{background:var(--deep);color:#dfe7f5;border-top:1px solid #ffffff20}.ribbon>.wrap{display:grid;grid-template-columns:repeat(3,1fr)}.ribbon span{display:flex;align-items:center;gap:18px;padding:24px 0;font-size:14px}.ribbon b{font-size:11px;color:#7b9be9;font-weight:400}.ribbon span:not(:first-child){padding-left:40px;border-left:1px solid #ffffff20}.section{padding-top:86px;padding-bottom:86px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:40px}h2{font-size:clamp(34px,3.6vw,50px);margin-top:18px;line-height:1.12}.section-heading>p{max-width:350px;font-size:16px;color:var(--muted);padding-bottom:3px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}.service-card{padding:28px 32px 30px 0}.service-card:not(:first-child){border-left:1px solid var(--rule);padding-left:32px}.card-index{color:var(--blue);font-size:14px;display:flex;justify-content:space-between;align-items:center;margin-bottom:38px}.card-index>span{font-size:25px;line-height:1}.service-card h3{font-size:28px;letter-spacing:-.6px}.service-card>p{font-size:16px;color:var(--muted);margin-top:18px;max-width:310px;min-height:55px}.service-tags{font-size:12px;color:var(--blue);margin-top:26px;line-height:1.7}details{margin-top:22px;border-top:1px solid var(--rule);padding-top:15px}summary{font-size:14px;cursor:pointer;color:var(--ink)}details>p{font-size:14px;line-height:1.75;color:var(--muted);padding-top:15px}.capabilities{background:var(--silver)}.chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 34px}.chips>span{font-size:14px;background:#fff;border:1px solid var(--rule);padding:8px 15px}.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.photo-card{margin:0}.photo-slot{aspect-ratio:4/3;position:relative;background:#e1e6ee;color:#63748d;border:1px solid #cbd3df;display:flex;align-items:center;justify-content:center;text-align:center}.photo-slot>div{padding:20px}.slot-number{position:absolute;left:18px;top:15px;font-size:12px;color:#76849a}.slot-plus{display:block;font-size:36px;line-height:1;color:#8d9aad;font-weight:300;margin-bottom:16px}.photo-slot p{font-size:14px;color:#4f607a}.photo-slot small{display:block;font-size:10px;letter-spacing:1px;margin-top:9px}.slot-ratio{position:absolute;right:18px;bottom:15px;font-size:11px}.photo-card figcaption{padding:22px 0 0}.photo-card figcaption>span{font-size:10px;color:#647185;letter-spacing:1px}.photo-card h3{font-size:23px;margin-top:9px;letter-spacing:-.6px}.note{font-size:12px;color:var(--muted);margin-top:28px;line-height:1.7}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:35px;margin-top:42px}.process-grid article{border-top:1px solid var(--rule);padding-top:22px}.process-number{font-size:30px;color:var(--blue);font-weight:400;letter-spacing:-1px}.process-grid h3{font-size:23px;margin-top:26px;letter-spacing:-.6px}.process-grid p{font-size:15px;color:var(--muted);margin-top:12px;max-width:230px}.team-section{background:var(--silver)}.team-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:75px}.team-layout h2{max-width:430px}.team-intro{color:var(--muted);margin-top:22px;font-size:16px;max-width:360px}.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.team-grid article{border-top:1px solid #adb8c8;padding-top:22px}.person-role{font-size:12px;color:var(--blue);display:block;min-height:42px}.team-grid h3{font-size:25px;letter-spacing:-.5px;margin-top:10px}.team-grid article>p{font-size:15px;color:var(--muted);margin-top:18px}.team-grid>.note{grid-column:1/-1;margin-top:0}.contact{background:var(--blue);color:white}.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:90px}.contact .eyebrow{color:#d8e4ff}.contact h2{font-size:clamp(35px,4vw,56px);margin-top:24px}.contact-grid>div>p{font-size:16px;color:#dce6ff;margin-top:24px}.brief ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px 30px}.brief li{border-top:1px solid #ffffff50;padding-top:13px;font-size:15px}.brief li span{display:block;font-size:11px;color:#cadbff;margin-bottom:8px}.light{background:white;color:var(--blue);margin-top:28px}.light:hover{background:#e8eeff}.brief .confidentiality{font-size:12px;margin-top:14px}.brief .copy-status{font-size:13px;min-height:22px;margin-top:8px}footer{display:flex;justify-content:space-between;align-items:center;gap:28px;padding-top:28px;padding-bottom:28px}footer>span{font-size:12px;color:var(--muted)}footer .brand img{width:40px;height:38px}footer .brand>span{font-size:22px}html[lang=zh-CN] h1,html[lang=zh-CN] h2,html[lang=zh-CN] h3{letter-spacing:0;font-weight:600}html[lang=zh-CN] h1{font-size:clamp(50px,5.6vw,78px);line-height:1.2}html[lang=zh-CN] h2{font-size:clamp(32px,3.2vw,44px);line-height:1.3}html[lang=zh-CN] .hero-inner>p{line-height:1.85}html[lang=zh-CN] .service-card h3{font-size:26px}html[lang=zh-CN] .person-role{min-height:24px}@media(min-width:1600px){header{padding-inline:calc((100vw - 1280px)/2)}}@media(max-width:1100px){header{padding-inline:28px;gap:20px}nav{gap:20px}.header-actions{gap:18px}.brand>span{font-size:23px}.brand img{width:43px;height:42px}.wrap{width:calc(100% - 64px)}.hero-inner{min-height:620px}.nav-cta{padding:11px 12px;font-size:13px}.nav-cta span{margin-left:10px}.team-layout{gap:40px}.contact-grid{gap:50px}.service-card{padding-right:24px}.service-card:not(:first-child){padding-left:24px}.service-card h3{font-size:25px}.service-tags{min-height:40px}.section-heading{gap:35px}}@media(max-width:880px){header{padding:15px 24px}nav{display:none;position:absolute;top:100%;left:0;right:0;padding:26px;background:white;box-shadow:0 12px 20px #00000015;flex-direction:column;align-items:flex-start;margin:0}nav.open{display:flex}.menu{display:flex;gap:10px;background:none;border:0;align-items:center;font-size:14px}.header-actions{margin-left:auto}.nav-cta{display:none}.hero-inner{min-height:620px;padding-top:90px}.hero h1{font-size:70px}.section-heading>p{max-width:290px}.photo-grid{gap:15px}.team-layout{grid-template-columns:1fr}.team-layout h2{max-width:600px}.team-intro{max-width:none}.team-grid{gap:35px}.person-role{min-height:24px}.ribbon span:not(:first-child){padding-left:22px}.ribbon span{font-size:13px;gap:10px}.service-card h3{font-size:24px}}@media(max-width:640px){.wrap{width:calc(100% - 40px)}header{padding:12px 18px;gap:10px}.brand{gap:8px}.brand img{width:36px;height:35px}.brand>span{font-size:20px;letter-spacing:.6px}.header-actions{gap:15px}.languages{font-size:12px;gap:6px}.menu{font-size:0;gap:0;padding:6px}.menu span{font-size:20px}.hero-inner{min-height:610px;padding-top:76px;padding-bottom:95px}.hero-image{object-position:62% center}.hero-shade{background:linear-gradient(90deg,rgba(6,13,23,.9),rgba(6,13,23,.42))}.hero h1{font-size:clamp(45px,11vw,65px);margin-top:27px}.hero-inner>p{font-size:17px;line-height:1.7;max-width:310px}.eyebrow{font-size:10px;letter-spacing:1.2px}.hero-bottom{flex-direction:column;gap:7px;font-size:10px;bottom:22px}.button{padding:15px 20px;gap:30px}.ribbon>.wrap{grid-template-columns:1fr}.ribbon span{padding:13px 0;font-size:14px;gap:20px}.ribbon span:not(:first-child){border-left:0;border-top:1px solid #ffffff20;padding-left:0}.section{padding-top:55px;padding-bottom:55px}.section-heading{flex-direction:column;align-items:flex-start;gap:20px;margin-bottom:30px}h2{font-size:36px}.section-heading>p{max-width:400px}.service-grid{grid-template-columns:1fr}.service-card{padding:26px 0!important;border-left:0!important}.service-card:not(:first-child){border-top:1px solid var(--rule)}.card-index{margin-bottom:22px}.service-card h3{font-size:28px}.service-card>p{min-height:0;max-width:none;margin-top:14px}.service-tags{min-height:0;margin-top:18px}.chips{gap:8px;margin-bottom:26px}.chips>span{font-size:12px;padding:7px 11px}.photo-grid{grid-template-columns:1fr;gap:28px}.photo-card figcaption{padding-top:16px}.photo-card h3{font-size:24px}.photo-slot{aspect-ratio:4/3}.photo-slot p{font-size:16px}.process-grid{grid-template-columns:1fr 1fr;gap:25px 22px;margin-top:28px}.process-grid h3{font-size:23px;margin-top:18px}.process-grid p{font-size:14px}.team-grid{grid-template-columns:1fr;gap:26px}.team-grid h3{margin-top:6px}.team-grid article>p{margin-top:14px}.team-layout{gap:28px}.contact-grid{grid-template-columns:1fr;gap:35px}.contact h2{font-size:37px}.brief ul{gap:22px}.brief li{font-size:14px}.brief .light{width:100%}.contact-grid>div>p{font-size:15px}.brief .confidentiality{font-size:12px}.brief .copy-status{font-size:13px}footer{flex-wrap:wrap;gap:20px}footer .brand{width:100%}footer>span{font-size:11px}html[lang=zh-CN] h1{font-size:clamp(39px,10vw,56px)}html[lang=zh-CN] h2{font-size:32px}html[lang=zh-CN] .contact h2{font-size:34px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Four equal service cards and supplied engineering excerpts. */
.service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.service-card{padding:30px!important}.service-card:nth-child(odd){border-left:0}.service-card:nth-child(n+3){border-top:1px solid var(--rule)}.service-card h3{max-width:460px}.service-card>p{max-width:460px}.service-tags{font-size:14px}.dfm-stack{display:grid;gap:32px}.dfm-card{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);border:1px solid var(--rule);background:#fff}.dfm-visual{display:flex;align-items:center;background:var(--silver);padding:26px}.dfm-pictures{width:100%;display:grid;gap:20px}.dfm-pictures figure{margin:0;min-width:0}.dfm-pictures img{display:block;width:100%;height:auto;max-height:300px;object-fit:contain}.dfm-pictures figcaption{font-size:14px;color:var(--muted);margin-top:9px}.dfm-copy{padding:32px}.dfm-copy h3{font-size:28px;line-height:1.2;margin-top:14px;letter-spacing:-.5px}.dfm-copy dl{margin:24px 0 0}.dfm-copy dl>div+div{margin-top:18px}.dfm-copy dt{font-size:14px;font-weight:700;color:var(--blue)}.dfm-copy dd{margin:5px 0 0;font-size:16px;color:var(--muted);line-height:1.65}.dfm-deliver{margin-top:28px;font-size:16px}.dfm-deliver+.note{margin-top:10px;font-size:14px}nav{gap:20px}nav a{white-space:nowrap}@media(max-width:1200px){header{gap:18px;padding-inline:24px}nav{gap:14px}.header-actions{gap:16px}.nav-cta{display:none}}@media(max-width:880px){.dfm-copy{padding:24px}.dfm-visual{padding:20px}}@media(max-width:640px){.service-grid{grid-template-columns:1fr}.service-card{padding:26px 0!important;border-left:0!important}.dfm-card{grid-template-columns:1fr}.dfm-copy h3{font-size:25px}.dfm-copy{padding:24px 20px}.dfm-pictures img{max-height:260px}}

/* Cold metallic iron-grey theme; white-backed original wordmark. */
:root{--ink:#f1f3f5;--blue:#96b6ff;--muted:#c6ccd3;--rule:#626a74;--silver:#41474e;--deep:#282d33}
body{background:#363b41;color:var(--ink)}header{background:#30353b;border-bottom:1px solid #626a74}.brand .wordmark,footer .brand .wordmark{width:210px;height:60px;object-fit:contain;background:#fff;border-radius:2px}.languages a{color:#d2d8df}.languages a.active{color:#a9c5ff}.nav-cta,.primary{background:#285adb;color:#fff}.nav-cta:hover,.primary:hover{background:#1b45b3}.hero-inner{min-height:780px;padding-top:115px}.hero-image{object-position:center center}.hero-shade{background:linear-gradient(90deg,rgba(16,21,28,.7),rgba(16,21,28,.12) 57%,transparent 76%)}.hero h1{max-width:660px;font-size:clamp(52px,5.7vw,82px)}.hero-inner>p{max-width:440px}.ribbon{background:#292e34}.capabilities,.team-section{background:#41474e}.service-grid{background:#3b4148}.service-card{border-color:var(--rule)}.chips>span{background:#343a41;color:#e0e5eb;border-color:#69727d}.photo-slot{background:#343b44;border-color:#626e7d;color:#c2ccd9}.photo-slot p{color:#d2dae5}.photo-slot small,.slot-number,.slot-ratio{color:#b3bfce}.slot-plus{color:#adc0d8}.photo-card figcaption>span{color:#c2cbd6}.dfm-card{background:#3e454d;border-color:#68727e}.dfm-visual{background:#2c3239}.dfm-pictures figure{background:#e8ebef;border:1px solid #8793a3;padding:10px;min-width:0}.dfm-pictures figcaption{color:#303b49;font-size:14px}.dfm-pictures.four-images{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.four-images img{height:190px;max-height:none;object-fit:contain}.dfm-pictures:not(.four-images) img{max-height:350px}.dfm-copy{padding:28px}.dfm-copy dt{color:#aec9ff}.dfm-copy dd{color:#d5dbe2}.contact{background:#2b3138;border-top:1px solid #68727e}.contact .eyebrow{color:#abc6ff}.contact-grid>div>p{color:#d9dfe7}.light{background:#e8eef9;color:#1c438d}.contact-emails{display:grid;gap:10px;margin-bottom:28px}.contact-emails a{display:block;font-size:20px;color:#fff;text-decoration:underline;text-decoration-color:#7193cd;text-underline-offset:6px;overflow-wrap:anywhere}.contact-emails a:hover{color:#abc6ff}footer{background:#363b41}.skip{color:#15202d}a:focus-visible,button:focus-visible,summary:focus-visible{outline-color:#b8d0ff}
@media(max-width:1100px){.brand .wordmark,footer .brand .wordmark{width:189px;height:54px}.hero-inner{min-height:740px}.four-images img{height:150px}.dfm-card{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}}
@media(max-width:880px){nav{background:#30353b}.dfm-card{grid-template-columns:1fr}.dfm-visual{padding:24px}.four-images img{height:220px}.hero-inner{min-height:720px}.hero h1{font-size:62px}}
@media(max-width:640px){.brand .wordmark,footer .brand .wordmark{width:161px;height:46px}.header-actions{gap:12px}.hero-inner{min-height:740px;padding-top:65px;padding-bottom:320px}.hero-image{object-position:68% center}.hero-shade{background:linear-gradient(180deg,rgba(12,18,25,.72),rgba(12,18,25,.48) 40%,rgba(12,18,25,.12) 68%,rgba(12,18,25,.45))}.hero h1{font-size:clamp(42px,10vw,58px)}.hero-inner>p{font-size:16px;max-width:300px}.dfm-visual{padding:14px}.dfm-pictures.four-images{gap:10px}.four-images img{height:145px}.dfm-pictures figure{padding:7px}.dfm-pictures figcaption{font-size:14px;line-height:1.5}.dfm-copy{padding:24px 20px}.contact-emails a{font-size:18px}.service-grid{background:transparent}}
@media(max-width:380px){.brand .wordmark{width:140px;height:40px}.four-images img{height:120px}}

/* Transparent brand symbol and individual founder contacts. */
header .brand{gap:12px}header .brand .brand-symbol{width:64px;height:62px;object-fit:contain;background:transparent}header .brand>span{color:#fff;font-size:34px;font-weight:800;letter-spacing:1px}footer .brand .brand-symbol{width:48px;height:46px;object-fit:contain;background:transparent}footer .brand>span{color:#fff;font-size:28px}.founder-email{display:inline-block;margin-top:12px;font-size:16px;color:#c4d6ff;text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}.founder-email:hover{color:#fff}.team-grid article>p{margin-top:18px}
@media(max-width:1100px){header .brand>span{font-size:30px}header .brand .brand-symbol{width:56px;height:54px}}@media(max-width:640px){header .brand{gap:8px}header .brand>span{font-size:25px;letter-spacing:.4px}header .brand .brand-symbol{width:43px;height:42px}.header-actions{gap:10px}}@media(max-width:380px){header .brand>span{font-size:22px}header .brand .brand-symbol{width:38px;height:37px}header{padding-inline:12px}.header-actions{gap:8px}}

/* Brand baseline and contact details below each name and contact section. */
header .brand,footer .brand{align-items:flex-end}header .brand>span,footer .brand>span{line-height:1;transform:translateY(1px)}.founder-phone{display:block;font-size:16px;color:#d5dfea;margin-top:6px;white-space:nowrap}.founder-phone:hover{color:#fff}.contact-bottom{grid-column:1/-1;border-top:1px solid var(--rule);padding-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:-48px}.contact-bottom>div{display:flex;flex-direction:column;gap:6px}.contact-bottom a{width:fit-content;color:#fff;font-size:18px;overflow-wrap:anywhere}.contact-bottom a[href^="mailto:"]{text-decoration:underline;text-underline-offset:5px;text-decoration-color:#7193cd}.contact-bottom a[href^="tel:"]{font-size:16px;color:#d5dfea}.contact-bottom a:hover{color:#bcd2ff}@media(max-width:1100px){.contact-bottom{margin-top:-16px}}@media(max-width:640px){.contact-bottom{grid-template-columns:1fr;margin-top:0;gap:24px}}

/* Cool metallic iron grey: lighter body surfaces with dark, high-contrast copy. */
:root{--ink:#17212b;--blue:#153e83;--muted:#303d49;--rule:#788590;--silver:#b6bdc4;--deep:#606b76}
body,footer{background:#a6afb7;color:var(--ink)}
header{background:#606b76;border-color:#7b8792;color:#fff}
header .languages a,header .languages a.active,header nav a[aria-current=page],header nav a:hover,header .menu{color:#fff}
header .languages a.active{border-color:#fff}
.ribbon{background:#919da7;color:#17212b}.ribbon b{color:#153e83}
.capabilities,.team-section{background:#b6bdc4}.service-grid{background:#aeb7bf}
.chips>span{background:#c3cad0;color:#17212b;border-color:#7c8994}
.photo-slot{background:#a2aeb8;border-color:#76838e;color:#233140}
.photo-slot p,.photo-slot small,.slot-number,.slot-ratio,.slot-plus,.photo-card figcaption>span{color:#303d49}
.dfm-card{background:#b9c1c8;border-color:#788590}.dfm-visual{background:#98a4af}
.dfm-copy dt{color:#153e83}.dfm-copy dd{color:#303d49}
.contact{background:#9ca7b1;color:#17212b;border-color:#788590}
.contact .eyebrow,.brief li span{color:#12356f}.contact-grid>div>p{color:#303d49}
.brief li,.team-grid article{border-color:#788590}
.founder-email,.founder-phone,.contact-bottom a,.contact-bottom a[href^="tel:"]{color:#172d4a}
.founder-email:hover,.founder-phone:hover,.contact-bottom a:hover{color:#123c83}
.contact-bottom a[href^="mailto:"]{text-decoration-color:#47688c}
footer{background:#606b76;color:#fff}footer>span,footer .brand>span,footer .footer-pages a{color:#fff}
body .case-tile,body .project-tile{background:#b6bdc4}
body .case-image{background:#98a4af}
body .text-link,body .case-type,body .case-status,body .footer-pages a:hover{color:#153e83}
header .brand>span,footer .brand>span{transform:translateY(var(--brand-align,4px))}
@media(max-width:880px){nav{background:#606b76;color:#fff}}

/* Main section labels 01–06: readable on desktop and mobile. */
.section-heading .eyebrow,
#approach > .eyebrow,
.team-layout > div > .eyebrow,
.contact-grid > div > .eyebrow {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .075em;
}
@media (max-width: 640px) {
  .section-heading .eyebrow,
  #approach > .eyebrow,
  .team-layout > div > .eyebrow,
  .contact-grid > div > .eyebrow {
    font-size: 1rem;
    letter-spacing: .06em;
  }
}

/* Multipage navigation and editorial detail layouts. */
nav{gap:20px}nav a[aria-current=page]{color:#c6d9ff;text-decoration:underline;text-underline-offset:8px}.page-title{font-size:clamp(34px,4vw,58px);line-height:1.12;letter-spacing:-.035em;margin:22px 0;max-width:900px}.text-link{display:inline-flex;gap:16px;align-items:center;color:#c6d9ff;font-size:16px;font-weight:600;margin-top:24px;text-decoration:underline;text-underline-offset:6px}.service-card .text-link{margin-top:28px}.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.case-tile{background:#41474e;border:1px solid var(--rule);overflow:hidden}.case-image{display:block;background:#2c3239;aspect-ratio:4/3;overflow:hidden}.case-image>span{display:none}.case-image img{display:block;width:100%;height:100%;object-fit:contain;padding:18px;transition:transform .2s}.case-image:hover img{transform:scale(1.025)}.case-tile-copy{padding:26px}.case-type{font-size:13px;letter-spacing:.08em;color:#c6d9ff;margin-bottom:16px}.case-tile h3{font-size:25px;line-height:1.2;letter-spacing:-.02em}.case-tile-copy>p:not(.case-type){margin-top:20px;color:var(--muted);font-size:16px}.page-cta{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-block:56px;border-top:1px solid var(--rule)}.page-cta h2{font-size:clamp(28px,3vw,42px);margin:0}.page-cta .primary{margin:0;flex-shrink:0}.case-status{margin:28px 0;color:#c6d9ff}.case-detail .dfm-card{margin-top:30px}.case-detail>.note{margin-top:26px}.case-detail .dfm-copy h3{font-size:clamp(26px,3vw,38px)}.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding-bottom:70px}.project-tile{padding:32px;border-top:1px solid var(--rule);background:#41474e}.project-tile h3{font-size:28px}.project-tile p,.lead{font-size:18px;line-height:1.75;color:var(--muted);margin-top:24px;max-width:850px}.project-detail>.eyebrow{margin-top:40px}.detail-columns{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:60px;border-top:1px solid var(--rule);padding-top:24px}.detail-columns h2{font-size:28px}.detail-columns p{margin-top:24px}.footer-pages{display:flex;gap:22px;flex-wrap:wrap;font-size:14px}footer{flex-wrap:wrap;gap:25px}.footer-pages a:hover{color:#c6d9ff}@media(max-width:1100px){header{gap:18px;padding-inline:24px}nav{gap:14px}nav a{font-size:13px}.case-grid{gap:16px}.case-tile-copy{padding:20px}}@media(max-width:880px){.case-grid{grid-template-columns:1fr}.case-tile{display:grid;grid-template-columns:1fr 1fr}.project-grid{grid-template-columns:1fr}.detail-columns{gap:30px}}@media(max-width:640px){.case-tile{display:block}.page-cta{align-items:flex-start;flex-direction:column}.detail-columns{grid-template-columns:1fr}.project-tile{padding:24px}.page-title{font-size:34px}.footer-pages{gap:16px}}

/* Readable process case details on the shared iron-grey surface. */
.project-narrative{margin-top:56px;max-width:960px}.project-narrative article{display:grid;grid-template-columns:240px 1fr;gap:40px;padding:32px 0;border-top:1px solid var(--rule)}.project-narrative h2{font-size:26px;line-height:1.3}.project-narrative p{font-size:18px;line-height:1.8;color:var(--muted)}@media(max-width:640px){.project-narrative article{grid-template-columns:1fr;gap:16px}.project-narrative h2{font-size:23px}}

/* September 28 PPT: steel-grey palette, focused home and paired contacts. */
:root{--ink:#05080a;--muted:#05080a;--blue:#12356f;--rule:#454e54;--silver:#71797e;--deep:#5e5e5e}
body,.capabilities,.team-section,.contact{background:#71797e;color:var(--ink)}
header,footer{background:#5e5e5e;color:#fff;border-color:#7b8287}
header nav a,header .languages a,header .menu,footer>span,footer .footer-pages a{color:#fff}
header nav a:hover,header nav a[aria-current=page],footer .footer-pages a:hover{color:#fff;text-decoration:underline}
.section-heading h1,.section-heading h2,.page-title,.team-layout h2,#approach>h1,#approach>h2,.page-cta h2,.contact h1,.contact h2{color:#fff}
.eyebrow,.contact .eyebrow,.process-number,.person-role,.card-index,.service-tags,.brief li span{color:#05080a}
body .text-link,body .case-type,body .case-status,.founder-email,.founder-phone,.contact-bottom a,.contact-bottom a[href^="tel:"]{color:#05080a}
.founder-email:hover,.founder-phone:hover,.contact-bottom a:hover{color:#fff}
.service-grid,body .case-tile,body .project-tile,.dfm-card{background:#929ba1;border-color:var(--rule)}
.chips>span{background:#aab1b6;color:#05080a;border-color:#596168}
.photo-slot,body .case-image,.dfm-visual{background:#929ba1;border-color:var(--rule)}
.photo-slot p,.photo-slot small,.slot-number,.slot-ratio,.slot-plus,.photo-card figcaption>span,.dfm-copy dt,.dfm-copy dd,.contact-grid>div>p{color:#05080a}
.contact-bottom a[href^="mailto:"]{text-decoration-color:currentColor}
.primary,.nav-cta{background:#12356f;color:white}.primary:hover,.nav-cta:hover{background:#0c2858}.light{color:#12356f}
.page-home .hero-inner{min-height:max(680px,calc(100svh - 100px));display:flex;flex-direction:column;justify-content:center;padding-top:70px;padding-bottom:100px}
.page-home .hero-inner .primary{align-self:flex-start}.page-home .hero .eyebrow{color:#fff}
.page-contact .contact-bottom{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:20px;padding-top:24px;border-top:1px solid var(--rule)}
.page-contact .contact-bottom a{font-size:17px}.page-contact .contact-bottom a[href^="tel:"]{font-size:15px}
.page-contact .contact-grid{align-items:start;gap:56px;grid-template-columns:1.1fr 1fr}
@media(max-width:1100px){.page-contact .contact-grid{gap:32px;grid-template-columns:1fr 1fr}.page-contact .contact-bottom{gap:12px}.page-contact .contact-bottom a{font-size:15px}.page-contact .contact-bottom a[href^="tel:"]{font-size:14px}}
@media(max-width:880px){nav{background:#5e5e5e}.page-contact .contact-grid{grid-template-columns:1fr;gap:32px}.page-contact .contact-bottom{gap:24px}}
@media(max-width:640px){.page-home .hero-inner{min-height:calc(100svh - 76px);padding-top:72px;padding-bottom:108px}.page-contact .contact-bottom{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.page-contact .contact-bottom a{font-size:14px}.page-contact .contact-bottom a[href^="tel:"]{font-size:13px}}

/* Second PPT revision: filled photography and aligned service links. */
.service-card{display:flex;flex-direction:column;min-width:0}
.service-card>.text-link{margin-top:auto;padding-top:28px;align-self:flex-start}
.service-card details{margin-bottom:0}.service-card .card-index{margin-bottom:22px}
.service-photo,.editorial-photo{margin:0;min-width:0}
.service-photo{margin-bottom:26px}.service-photo img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;background:#71797e}
.service-photo figcaption,.editorial-photo figcaption{font-size:12px;line-height:1.6;margin-top:8px;color:#05080a}
.service-card:nth-child(3) .service-photo img{object-fit:contain;padding:0;background:#aab1b6}
.editorial-photo{margin-top:32px;max-width:960px}.editorial-photo img{display:block;width:100%;height:auto;max-height:500px;object-fit:contain;background:#61696f}
.project-tile>.editorial-photo{margin-top:0;margin-bottom:26px}.project-tile>.editorial-photo img{aspect-ratio:4/3;object-fit:cover}
.cms-photo{display:block;border:1px solid var(--rule)}
.team-grid article>p.credentials{font-size:15px;line-height:1.6;font-weight:600;margin-top:12px;color:#05080a;margin-bottom:10px}
@media(min-width:641px){.service-card h3{min-height:2.3em}}
@media(max-width:640px){.service-card>.text-link{margin-top:0}.editorial-photo img{max-height:none}.service-photo{margin-bottom:22px}}

/* PPT03: lead with section names, use smaller supporting statements. */
.section-heading .eyebrow,#approach>.eyebrow,.team-layout>div>.eyebrow,.contact-grid>div>.eyebrow,.project-detail>.eyebrow{font-size:clamp(27px,2.5vw,36px);line-height:1.25;letter-spacing:.015em;font-weight:700;color:#05080a}
.section-heading .page-title,.section-heading h2,#approach>h1,#approach>h2,.team-layout h2,.contact-grid h1,.contact-grid h2,html[lang=zh-CN] .section-heading h1,html[lang=zh-CN] .section-heading h2,html[lang=zh-CN] #approach>h1,html[lang=zh-CN] #approach>h2,html[lang=zh-CN] .team-layout h2,html[lang=zh-CN] .contact-grid h1,html[lang=zh-CN] .contact-grid h2{font-size:clamp(22px,1.9vw,28px);line-height:1.35;letter-spacing:-.02em;margin-top:18px;color:white;max-width:650px}
.team-grid article>p.credentials{margin-top:18px;margin-bottom:0;font-weight:500}
.page-contact .contact-bottom{margin-top:0;padding-top:0;border-top:0;margin-bottom:32px;gap:26px}
.contact-person{font-size:24px;line-height:1.25;margin-bottom:14px;letter-spacing:-.02em}
.page-contact .contact-bottom a{font-size:16px}.page-contact .contact-grid{align-items:start}
.surface-spec{margin-top:32px}.surface-spec h2{font-size:27px;margin:30px 0 20px;color:#fff}
.surface-spec table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.7}
.surface-spec th,.surface-spec td{padding:16px;text-align:left;vertical-align:top;border-top:1px solid var(--rule)}
.surface-spec th{width:28%;font-weight:600}.surface-spec tr:nth-child(odd){background:#929ba1}
.finishing-steps{padding-left:28px;line-height:1.8;font-size:17px}.finishing-steps li{padding:10px 0 10px 8px;border-bottom:1px solid var(--rule)}
.surface-zones img,.project-tile>.surface-zones img{object-fit:contain;background:white;aspect-ratio:auto;max-height:640px}
@media(max-width:640px){.section-heading .eyebrow,#approach>.eyebrow,.team-layout>div>.eyebrow,.contact-grid>div>.eyebrow{font-size:26px}.section-heading .page-title,.section-heading h2,#approach>h1,#approach>h2,.team-layout h2,.contact-grid h1,.contact-grid h2{font-size:21px}.page-contact .contact-bottom{gap:14px}.contact-person{font-size:21px}.page-contact .contact-bottom a{font-size:14px}.surface-spec th,.surface-spec td{padding:12px 8px}.surface-spec th{width:32%}}
.project-detail>.page-title,html[lang=zh-CN] .project-detail>.page-title{font-size:28px;line-height:1.35}
@media(max-width:640px){.project-detail>.eyebrow{font-size:26px}.project-detail>.page-title,html[lang=zh-CN] .project-detail>.page-title{font-size:22px}}

/* PPT30: match the neighboring image frame and white project background. */
.service-card:nth-child(3) .service-photo img{padding:0;aspect-ratio:16/9}
.cast-enclosures,.cast-enclosures img,.project-tile>.cast-enclosures img{background:#fff}

/* Founder hierarchy: prominent roles, aligned contact details. */
.team-grid .person-role,html[lang=zh-CN] .team-grid .person-role{display:flex;flex-direction:column;gap:9px;min-height:0}
.team-grid .role-title{display:block;font-size:34px;font-weight:700;line-height:1.05;letter-spacing:.025em;color:#05080a}
.team-grid .role-description{display:block;min-height:3em;font-size:16px;font-weight:500;line-height:1.5;letter-spacing:0;color:#05080a}
.team-grid h3{font-size:26px;line-height:1.2;margin-top:20px}
.team-grid .founder-email{margin-top:12px;line-height:1.5}
.team-grid .founder-phone{margin-top:7px;line-height:1.5}
.surface-zones img,.project-tile>.surface-zones img,.cast-enclosures,.cast-enclosures img,.project-tile>.cast-enclosures img{background:#343a3e}
@media(max-width:640px){.team-grid .role-title{font-size:32px}.team-grid .role-description{min-height:0}.team-grid h3{margin-top:18px}.team-grid{gap:32px}}

/* PPT 09-30-04: light RAL 7047 approximation, scoped away from Home. */
body:not(.page-home){--silver:#d0d0d0;--rule:#939a9e;background:#d0d0d0;color:#101820}
body:not(.page-home) :is(main,.capabilities,.team-section,.contact,.service-grid,.service-card,.case-tile,.project-tile,.dfm-card,.photo-slot,.case-image,.dfm-visual){background-color:#d0d0d0}
body:not(.page-home) main :is(h1,h2,h3){color:#101820!important}
body:not(.page-home) .chips>span{background:#e3e3e3;border-color:#92989c;color:#101820}
body:not(.page-home) :is(.surface-zones,.surface-zones img,.cast-enclosures,.cast-enclosures img){background:#d0d0d0}
body:not(.page-home) :is(.founder-email,.founder-phone,.contact-bottom a):hover{color:#12356f}