:root{
  --ink:#1b1d1f; --ink-2:#26292c; --blue:#0f3a9c; --blue-2:#0a2b77; --grey:#f2f2f0; --royal:#0b3a9e; --paper:#f4f4f2;
  --sans:'Inter Tight','Helvetica Neue',Arial,system-ui,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --serif:'Newsreader','Iowan Old Style',Georgia,'Songti SC','STSong','Noto Serif SC',serif;
  --rail:150px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:#fff;font:400 18px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2{margin:0;font-weight:600;letter-spacing:-.02em}
em{font-family:var(--serif);font-style:normal;font-weight:400;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid #6f8fe3;outline-offset:4px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:16px;top:-80px;z-index:100;background:var(--blue);color:#fff;padding:10px 18px;border-radius:999px;font-weight:600}
.skip:focus{top:16px}
.ico{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}

/* Photo placeholders (replaced by real photos later) */
.ph{margin:0;position:relative;overflow:hidden;background:
  repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 2px,transparent 2px 22px),
  linear-gradient(150deg,#1d4fb8 0%,#0b2d73 55%,#15191f 100%)}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ph.has-img{background:#2a2d31}
.ph span{position:absolute;left:16px;bottom:14px;right:16px;font:500 12px/1.4 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.ph span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:#fff;margin-right:8px;vertical-align:1px}

/* Top bar */
.top{position:fixed;inset:0 0 auto;z-index:40;display:flex;justify-content:space-between;align-items:center;padding:calc(18px + env(safe-area-inset-top,0px)) 20px 0;pointer-events:none}
.top>*{pointer-events:auto}
.logo{mix-blend-mode:difference}
.logo img{height:34px;width:auto;filter:brightness(0) invert(1)}
.lang{display:flex;align-items:center;gap:6px;background:var(--blue);color:#fff;border-radius:999px;padding:10px 16px;font-weight:600;font-size:15px;box-shadow:0 8px 24px -12px rgba(0,0,0,.5)}
.lang{position:relative;padding:0 14px}
.lang select{appearance:none;-webkit-appearance:none;background:transparent;border:0;color:#fff;font:600 15px/1 var(--sans);padding:12px 22px 12px 4px;cursor:pointer}
.lang select:focus{outline:none}
.lang:focus-within{outline:2px solid #6f8fe3;outline-offset:3px}
.lang select option{color:var(--ink)}
.lang .chev{position:absolute;right:12px;width:16px;height:16px;fill:none;stroke:#fff;stroke-width:2;pointer-events:none}

/* Rail */
.rail{position:fixed;z-index:35;left:50%;bottom:calc(14px + env(safe-area-inset-bottom,0px));transform:translate(-50%,140%);display:flex;align-items:center;gap:6px;background:var(--blue);color:#fff;border-radius:999px;padding:6px;box-shadow:0 14px 30px -12px rgba(0,0,0,.55);transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.past-hero .rail{transform:translate(-50%,0)}
.rail-shape{display:none}
.rail-link{padding:12px 16px;font:700 13px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;border-radius:999px}
.rail-link:hover{background:rgba(255,255,255,.12)}
.rail-menu{width:44px;height:44px;border-radius:50%;background:#fff;color:var(--blue);display:grid;place-items:center;flex:none}
.rail-menu svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2}

/* Menu */
.menu{position:fixed;inset:0;z-index:60;background:var(--ink);overflow:auto;animation:menuIn .5s cubic-bezier(.2,.8,.2,1)}
@keyframes menuIn{from{clip-path:circle(0 at 0 50%)}to{clip-path:circle(150% at 0 50%)}}
.menu-inner{min-height:100%;display:flex;flex-direction:column;padding:calc(18px + env(safe-area-inset-top,0px)) 20px calc(24px + env(safe-area-inset-bottom,0px))}
.menu-head{display:flex;justify-content:space-between;align-items:center}
.menu-logo{height:34px;width:auto;filter:brightness(0) invert(1)}
.menu-close{width:52px;height:52px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center}
.menu-close svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2}
.menu-body{flex:1;display:grid;align-items:center;gap:30px;padding:40px 0}
.menu-nav{display:flex;flex-direction:column}
.menu-nav a{display:flex;align-items:baseline;gap:18px;padding:12px 0;font:500 clamp(34px,6vw,76px)/1.05 var(--serif);letter-spacing:-.01em;border-bottom:1px solid rgba(255,255,255,.1);transition:color .25s,padding .35s}
.menu-nav .n{font:600 13px/1 var(--sans);letter-spacing:.1em;color:rgba(255,255,255,.5);transition:color .25s}
.menu-nav a:hover,.menu-nav a:focus-visible{padding-left:14px;box-shadow:inset 3px 0 0 var(--blue)}
.menu-nav a:hover .n{color:#fff}
.menu-pics{display:none;position:relative;aspect-ratio:4/5;border-radius:50% 50% 24px 24px / 38% 38% 24px 24px;overflow:hidden}
.menu-pics .ph{position:absolute;inset:0;opacity:0;transform:scale(1.06);transition:opacity .5s,transform .8s}
.menu-pics .ph.on{opacity:1;transform:none}
.menu-foot{display:flex;flex-wrap:wrap;gap:8px 28px;color:#b9bec4;font-size:15px}
.menu-foot a:hover{color:#fff}

/* Hero */
.hero{position:relative;height:100vh;height:100svh;min-height:560px;display:grid;place-items:center;overflow:hidden}
.collage{position:absolute;inset:0;display:grid;grid-template-columns:1.6fr 1fr;grid-template-rows:.8fr 1.2fr 1fr;gap:3px;background:var(--ink)}
.collage .t1{grid-column:1/3;grid-row:1}
.collage .t2{display:none}
.collage .t3{grid-column:1;grid-row:2/4}
.collage .t4{grid-column:2;grid-row:2}
.collage .t5{grid-column:2;grid-row:3}
.collage .t2{--g:#2a63c9}.collage .t3{--g:#123f94}.collage .t4{--g:#3b77d6}.collage .t5{--g:#0f2f78}
.collage .ph{background:#2a2d31;animation:tileIn 1.1s cubic-bezier(.7,0,.2,1) both}
.collage .t2{animation-delay:.08s}.collage .t3{animation-delay:.16s}.collage .t4{animation-delay:.24s}.collage .t5{animation-delay:.32s}
@keyframes tileIn{from{clip-path:inset(100% 0 0 0);transform:scale(1.15)}to{clip-path:inset(0);transform:none}}
.hero-shade{position:absolute;inset:0;background:rgba(18,20,22,.5)}
.hero-title{position:relative;z-index:1;text-align:center;font-size:clamp(46px,8.4vw,132px);line-height:1;padding:0 20px;text-shadow:0 2px 30px rgba(0,0,0,.25);animation:rise 1s .55s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(40px)}}
.scroll{position:absolute;bottom:calc(28px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);z-index:1;display:flex;flex-direction:column;align-items:center;gap:12px;font:600 14px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase}
.scroll svg{width:12px;height:70px;fill:none;stroke:#fff;stroke-width:1.4;animation:nudge 2s ease-in-out infinite}
@keyframes nudge{50%{transform:translateY(8px)}}

/* Job search */
.jobs{position:relative;min-height:100vh;min-height:100svh;background:var(--ink);overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end}
.arc{position:relative;width:118vw;margin:-10vw 0 0 -4vw;aspect-ratio:1/.62;border-radius:0 0 50% 50% / 0 0 100% 100%;overflow:hidden;align-self:flex-end}
.arc .ph{position:absolute;inset:-8% 0;will-change:transform}
.arc img{filter:brightness(.72) saturate(.85)}
.arc .ph span{left:auto;right:10vw;bottom:24%}
.jobs-inner{position:relative;z-index:1;padding:40px 22px 120px;max-width:1100px}
.big{font-size:clamp(42px,6.6vw,104px);line-height:1.02;margin-bottom:34px}
.search{display:flex;border:2px solid #fff;max-width:840px}
.search input{flex:1;min-width:0;background:transparent;border:0;outline:none;padding:18px 20px;font-size:clamp(17px,1.6vw,22px);color:#fff}
.search input::placeholder{color:rgba(255,255,255,.62);opacity:1}
.search button{width:64px;display:grid;place-items:center;color:#fff;background:var(--blue);transition:background .2s}
.search button:hover{background:var(--blue-2)}
.search button svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2}
.search:focus-within{box-shadow:0 0 0 4px rgba(15,58,156,.55)}
.search-note{margin-top:14px;color:#d7dbe0;font-size:16px;max-width:760px}
.resume{margin-top:36px;font-size:17px;color:#e7e9eb}
.resume a{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.resume a:hover{text-decoration-thickness:2px}

.eyebrow{font:700 13px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}

/* Footer */
.footer{background:var(--ink);padding:70px 22px calc(120px + env(safe-area-inset-bottom,0px));display:grid;gap:26px;border-top:1px solid rgba(255,255,255,.08)}
.footer img{height:44px;width:auto;filter:brightness(0) invert(1)}
.foot-info{display:grid;gap:8px;color:#c9ced3}
.foot-info a:hover{color:#fff}
.copy{color:#8b9096;font-size:14px}

.totop{position:fixed;right:18px;bottom:calc(84px + env(safe-area-inset-bottom,0px));z-index:30;width:56px;height:56px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px -10px rgba(0,0,0,.6)}
.totop[hidden]{display:none}
.totop svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8}


/* Shared section type */
.mid{font-size:clamp(38px,5vw,76px);line-height:1.06}
.mid.dark{color:var(--ink)}
.mid.center{text-align:center}
.lead{font-size:clamp(18px,1.5vw,22px);line-height:1.6}
.pill{display:inline-flex;align-items:center;justify-content:center;padding:16px 32px;border:2px solid #fff;border-radius:999px;font-weight:600;font-size:17px;transition:background .25s,color .25s}
.pill:hover{background:#fff;color:var(--ink)}
.pill.light{background:#fff;color:var(--ink)}
.pill.light:hover{background:transparent;color:#fff}
.pill.dark{border-color:var(--ink);color:var(--ink)}
.pill.dark:hover{background:var(--ink);color:#fff}

/* About */
.about{padding:110px 22px 0;background:var(--ink)}
.about-row{display:grid;gap:50px;margin-top:60px;align-items:end}
.cutout{position:relative;width:min(100%,460px);aspect-ratio:4/5;margin-inline:auto}
.cut-bg{position:absolute;left:12%;right:0;bottom:0;height:46%;background:var(--blue)}
.cutout .ph{position:absolute;left:0;right:12%;top:0;bottom:0}
.about-text{padding-bottom:90px}
.about-text .lead{margin-bottom:34px;color:#eceef0;max-width:34ch}

/* Grow band */
.grow{background:var(--blue);padding:110px 22px;text-align:center;display:flex;flex-direction:column;align-items:center}
.grow-sub{max-width:52ch;margin:18px auto 36px;color:#dbe3f6;font-size:19px}

/* Expertise / industries */
.expertise{display:grid;background:var(--grey);color:var(--ink)}
.exp-pic{min-height:360px;position:relative}
.exp-pic .ph{position:absolute;inset:0}
.exp-body{padding:80px 22px 90px}
.exp-list{list-style:none;margin:40px 0 0;padding:0;display:grid;gap:4px 40px}
.exp-list li{font-size:clamp(19px,1.6vw,24px);padding:14px 0;border-bottom:1px solid rgba(27,29,31,.12)}
.exp-note{margin:28px 0 32px;color:#5b5f64;max-width:50ch}

/* Services */
.services{background:#fff;color:var(--ink);padding:110px 22px}
.svc-head .eyebrow{color:var(--blue)}
.svc-grid{list-style:none;margin:50px 0 0;padding:0;display:grid;gap:0}
.svc-grid li{padding:30px 0;border-top:1px solid rgba(27,29,31,.14);display:grid;grid-template-columns:52px 1fr;column-gap:10px;transition:background .3s}
.svc-grid .n{grid-row:span 2;font:600 14px/1 var(--sans);color:var(--blue);padding-top:10px}
.svc-grid h3{margin:0 0 8px;font:500 clamp(26px,2.4vw,34px)/1.15 var(--serif)}
.svc-grid p{color:#5b5f64}

/* Candidates */
.join{display:grid;background:var(--ink)}
.join-text{padding:100px 22px 60px;align-self:end}
.join-text p{color:#d9dce0;max-width:44ch;margin:24px 0 34px;font-size:19px}
.join-ctas{display:flex;flex-wrap:wrap;gap:14px}
.join-pic{position:relative;min-height:420px}
.join-pic .ph{position:absolute;inset:0}

/* Contact */
.contact{background:var(--grey);color:var(--ink);padding:110px 22px;display:grid;gap:50px}
.contact .eyebrow{color:var(--blue)}
.contact .lead{color:#4d5156;margin-top:18px}
.ct-list{list-style:none;margin:34px 0 0;padding:0}
.ct-list li{padding:16px 0;border-top:1px solid rgba(27,29,31,.12);font-size:19px}
.ct-list small{display:block;font:700 12px/1.4 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#6b7076;margin-bottom:4px}
.ct-list a:hover{color:var(--blue)}
.ct-form,.thanks{background:#fff;border-radius:24px;padding:30px 24px;box-shadow:0 30px 60px -40px rgba(0,0,0,.35)}
.ct-form[hidden],.thanks[hidden],.field[hidden]{display:none}
.who{border:0;margin:0 0 22px;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.who legend{font:700 12px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#6b7076;margin-bottom:12px;padding:0}
.who label{position:relative}
.who input{position:absolute;opacity:0}
.who span{display:block;padding:12px 18px;border:2px solid rgba(27,29,31,.2);border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;transition:all .2s}
.who input:checked+span{background:var(--blue);border-color:var(--blue);color:#fff}
.who input:focus-visible+span{outline:2px solid #6f8fe3;outline-offset:3px}
.grid{display:grid;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;font:700 12px/1.3 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:#6b7076}
.field input,.field textarea{font:400 17px/1.4 var(--sans);letter-spacing:0;text-transform:none;color:var(--ink);border:0;border-bottom:2px solid rgba(27,29,31,.18);padding:10px 0;background:transparent;border-radius:0;width:100%}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--blue)}
.consent{display:flex;gap:10px;align-items:flex-start;margin:22px 0;font-size:15px;color:#4d5156}
.consent input{width:18px;height:18px;margin-top:3px;accent-color:var(--blue)}
.thanks{text-align:center;padding:60px 28px}
.thanks:focus{outline:none}
.thanks-title{font:500 clamp(30px,3vw,42px)/1.15 var(--serif);margin-bottom:12px}
.thanks p:not(.thanks-title){color:#5b5f64;margin-bottom:28px}
.footer{background:var(--ink)}

/* Reveal */
.js .reveal{opacity:0;transform:translateY(30px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
.js .reveal.in{opacity:1;transform:none}

@media (min-width:900px){
  .about{padding:150px 60px 0 calc(var(--rail) + 80px)}
  .about-row{grid-template-columns:1fr 1fr;gap:80px;margin-top:40px}
  .cutout{margin:0 0 0 8%}
  .about-text{padding-bottom:120px}
  .grow{padding:140px 60px 140px calc(var(--rail) + 60px)}
  .expertise{grid-template-columns:36% 1fr}
  .exp-pic{min-height:auto}
  .exp-body{padding:130px 60px 130px 7vw}
  .exp-list{grid-template-columns:1fr 1fr}
  .services{padding:140px 60px 140px calc(var(--rail) + 80px)}
  .svc-grid{grid-template-columns:repeat(3,1fr);column-gap:40px}
  .svc-grid li{grid-template-columns:1fr;row-gap:14px;padding:34px 0 20px}
  .svc-grid .n{grid-row:auto;padding-top:0}
  .join{grid-template-columns:1fr 1fr;min-height:90vh}
  .join-text{padding:120px 50px 110px calc(var(--rail) + 60px)}
  .contact{grid-template-columns:1fr 1.2fr;gap:80px;padding:140px 60px 140px calc(var(--rail) + 80px);align-items:start}
  .ct-form,.thanks{padding:44px}
  .grid{grid-template-columns:1fr 1fr;gap:24px 28px}
  .field.full{grid-column:1/-1}
}

@media (min-width:900px){
  .top{padding:26px 34px 0}
  .logo img{height:44px}
  /* Curved rail */
  .rail{left:0;top:0;bottom:0;transform:translateX(calc(-100% - 80px));width:var(--rail);flex-direction:column;justify-content:center;gap:26px;background:none;box-shadow:none;border-radius:0;padding:0 0 0 30px;align-items:flex-start;transition:transform .8s cubic-bezier(.2,.8,.2,1)}
  .past-hero .rail{transform:none}
  .rail-shape{display:block;position:absolute;inset:0 -40px 0 0;background:var(--blue);clip-path:ellipse(100% 52% at 0 50%);z-index:-1;transition:clip-path .8s cubic-bezier(.2,.8,.2,1)}
  .rail:hover .rail-shape{clip-path:ellipse(112% 56% at 0 50%)}
  .rail-link{writing-mode:vertical-rl;transform:rotate(180deg);padding:14px 10px;font-size:20px;letter-spacing:.04em}
  .rail-link:hover{background:none;text-decoration:underline;text-underline-offset:6px}
  .rail-menu{background:none;color:#fff;width:44px;height:44px}
  .rail-menu svg{width:26px;height:26px;transform:rotate(90deg)}
  .rail-menu:hover{background:rgba(255,255,255,.12)}
  /* Collage like u&u */
  .collage{grid-template-columns:35% 21.5% 43.5%;grid-template-rows:27% 73%}
  .collage .t1{grid-column:1;grid-row:1}
  .collage .t2{display:block;grid-column:2;grid-row:1}
  .collage .t3{grid-column:1;grid-row:2}
  .collage .t4{grid-column:2;grid-row:2}
  .collage .t5{grid-column:3;grid-row:1/3}
  /* Arc photo on the right */
  .jobs{justify-content:center}
  .arc{position:absolute;top:-24vh;right:-20vw;width:70vw;margin:0;aspect-ratio:1;border-radius:50%}
  .arc .ph span{right:22%;bottom:20%}
  .jobs-inner{padding:120px 40px 120px calc(var(--rail) + 60px)}
  .footer{grid-template-columns:auto 1fr auto;align-items:center;padding:60px 40px 60px calc(var(--rail) + 40px)}
  .foot-info{grid-auto-flow:column;justify-content:center;gap:34px}
  .totop{right:34px;bottom:34px}
  .menu-inner{padding:26px 40px 34px 60px}
  .menu-body{grid-template-columns:1.3fr 1fr;gap:80px}
  .menu-pics{display:block;max-height:68vh;justify-self:center;width:min(100%,520px)}
}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none}
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

html[lang=zh-Hans] .hero-title,html[lang=zh-Hans] .big,html[lang=zh-Hans] .mid{letter-spacing:0;line-height:1.2}
html[lang=zh-Hans] .hero-title{font-size:clamp(38px,6.8vw,104px);max-width:14em}