:root{
  /* Brand: Deep Navy base, Signal Blue accent, cool neutrals. Layout: full-bleed navy bands alternating with light workshop sections; a sticky nav. */
  --navy:#0B1F3A; --navy-2:#12294A; --blue:#1E5EFF; --blue-soft:#DCE6FF;
  --paper:#F5F7FB; --white:#FFFFFF; --ink:#0B1F3A; --ink-2:#4A5A74; --line:#D9E0EC;
  --display:'Sora',system-ui,sans-serif; --body:'IBM Plex Sans',system-ui,sans-serif;
  --r:14px; --max:1160px;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--body);color:var(--ink);background:var(--white);line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--display);margin:0;text-wrap:balance;line-height:1.15}
p{margin:0}
a{color:inherit}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--display);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);font-weight:600}
.sec{padding:88px 0}
.sec h2{font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:700;margin-top:10px}
.sec .lead{color:var(--ink-2);max-width:62ch;margin-top:14px;font-size:1.05rem}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;border:1.5px solid transparent;font-family:var(--display);font-weight:600;font-size:.95rem;text-decoration:none;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-dark{background:var(--navy);color:#fff}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,31,58,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav img{height:38px;width:auto}
.nav ul{list-style:none;display:flex;gap:28px;margin:0;padding:0}
.nav ul a{color:#C8D4EC;text-decoration:none;font-size:.92rem;font-weight:500}
.nav ul a:hover{color:#fff}
.nav .cta{padding:10px 18px;font-size:.88rem}
.menu-btn{display:none;background:none;border:0;color:#fff;width:44px;height:44px}
@media (max-width:860px){.nav ul{display:none}.menu-btn{display:block}.nav .cta{display:none}}
.nav ul.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;background:var(--navy);padding:8px 24px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
.nav ul.open a{display:block;padding:12px 0;font-size:1.05rem}

/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-top:88px;padding-bottom:88px}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.6rem);font-weight:700;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:#7FA3FF}
.hero .sub{color:#C8D4EC;font-size:1.12rem;max-width:54ch;margin-top:20px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px}
.stat{border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:16px 18px;background:rgba(255,255,255,.04)}
.stat b{font-family:var(--display);font-size:1.6rem;display:block;font-variant-numeric:tabular-nums}
.stat span{font-size:.85rem;color:#AFBEDC}
.picker{background:var(--white);color:var(--ink);border-radius:20px;padding:26px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.picker h3{font-size:1.05rem;font-weight:600}
.picker p{color:var(--ink-2);font-size:.9rem;margin-top:4px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{border:1.5px solid var(--line);background:var(--paper);border-radius:999px;padding:8px 14px;font-size:.88rem;font-weight:500;color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.picker-out{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.picker-out .row{display:flex;justify-content:space-between;gap:12px;font-size:.92rem;padding:7px 0}
.picker-out .row span:first-child{color:var(--ink-2)}
.picker-out .row b{font-variant-numeric:tabular-nums}
.picker .btn{width:100%;justify-content:center;margin-top:14px}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:56px;padding-bottom:56px}.stats{grid-template-columns:repeat(3,1fr)}}
@media (max-width:480px){.stats{grid-template-columns:1fr 1fr}}

/* capabilities */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.cap{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--white);transition:transform .2s,box-shadow .2s,border-color .2s;position:relative}
.cap:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(11,31,58,.10);border-color:var(--blue-soft)}
.cap .ic{width:46px;height:46px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue)}
.cap h3{font-size:1.1rem;margin-top:18px;font-weight:600}
.cap p{color:var(--ink-2);font-size:.93rem;margin-top:8px}
.cap ul{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.cap li{font-size:.76rem;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:3px 8px;color:var(--ink-2)}
@media (max-width:900px){.cap-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cap-grid{grid-template-columns:1fr}}

/* process */
.process{background:var(--paper)}
.steps{display:grid;grid-template-columns:260px 1fr;gap:40px;margin-top:40px}
.steplist{display:flex;flex-direction:column;gap:6px}
.step{display:flex;gap:14px;align-items:center;padding:14px 16px;border-radius:12px;border:1.5px solid transparent;background:transparent;text-align:left;width:100%;color:var(--ink)}
.step .n{width:34px;height:34px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-family:var(--display);font-weight:600;font-size:.85rem;flex:none;background:var(--white)}
.step span.t{font-family:var(--display);font-weight:600;font-size:.95rem}
.step small{display:block;color:var(--ink-2);font-size:.8rem;font-weight:400}
.step[aria-selected="true"]{background:var(--white);border-color:var(--blue-soft);box-shadow:0 8px 24px rgba(11,31,58,.08)}
.step[aria-selected="true"] .n{background:var(--blue);border-color:var(--blue);color:#fff}
.stepview{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:34px;min-height:340px}
.stepview .eyebrow{color:var(--ink-2)}
.stepview h3{font-size:1.5rem;margin-top:8px}
.stepview p{color:var(--ink-2);margin-top:14px;max-width:60ch}
.stepview .out{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.stepview .out div{background:var(--paper);border-radius:10px;padding:14px;font-size:.9rem}
.stepview .out b{display:block;font-family:var(--display);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}
.bar{height:6px;background:var(--line);border-radius:3px;margin-top:26px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--blue);transition:width .4s}
@media (max-width:820px){.steps{grid-template-columns:1fr}.steplist{flex-direction:row;overflow-x:auto;padding-bottom:6px}.step{min-width:200px}.stepview .out{grid-template-columns:1fr}}

/* estimator */
.est{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:40px;align-items:start}
.panel{border:1px solid var(--line);border-radius:18px;padding:28px;background:var(--white)}
.field{margin-top:20px}
.field label{font-family:var(--display);font-weight:600;font-size:.88rem;display:block;margin-bottom:8px}
.field select,.field input[type=text],.field input[type=email],.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;background:var(--paper);color:var(--ink)}
.field textarea{min-height:110px;resize:vertical}
.range{display:flex;align-items:center;gap:14px}
.range input{flex:1;accent-color:var(--blue)}
.range output{font-family:var(--display);font-weight:600;min-width:3.5ch;text-align:right;font-variant-numeric:tabular-nums}
.toggles{display:flex;flex-wrap:wrap;gap:8px}
.result{background:var(--navy);color:#fff;border-radius:18px;padding:28px;position:sticky;top:92px}
.result h3{font-size:1.05rem;font-weight:600;color:#AFBEDC}
.result .big{font-family:var(--display);font-size:2.6rem;font-weight:700;margin-top:6px;font-variant-numeric:tabular-nums}
.result .big small{font-size:1rem;font-weight:500;color:#AFBEDC;margin-left:6px}
.timeline{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.tl{display:grid;grid-template-columns:110px 1fr 54px;align-items:center;gap:10px;font-size:.88rem}
.tl .trk{height:10px;background:rgba(255,255,255,.1);border-radius:5px;overflow:hidden}
.tl .trk i{display:block;height:100%;background:#7FA3FF;border-radius:5px;transition:width .4s}
.tl .trk i.hl{background:var(--blue)}
.tl span:last-child{text-align:right;color:#AFBEDC;font-variant-numeric:tabular-nums}
.result .note{color:#AFBEDC;font-size:.82rem;margin-top:18px;border-top:1px solid rgba(255,255,255,.12);padding-top:14px}
.result ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:6px;font-size:.9rem}
.result li::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--blue);margin-right:10px;transform:rotate(45deg)}
@media (max-width:860px){.est{grid-template-columns:1fr}.result{position:static}}

/* why shenzhen */
.why{background:var(--navy);color:#fff}
.why .eyebrow{color:#7FA3FF}
.why .lead{color:#C8D4EC}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.why-card{border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:22px;background:rgba(255,255,255,.04)}
.why-card b{font-family:var(--display);font-size:1.9rem;display:block;font-variant-numeric:tabular-nums}
.why-card p{color:#AFBEDC;font-size:.9rem;margin-top:8px}
@media (max-width:900px){.why-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.why-grid{grid-template-columns:1fr}}

/* faq */
.faq{max-width:800px;margin:36px auto 0}
.q{border-bottom:1px solid var(--line)}
.q button{width:100%;background:none;border:0;padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;text-align:left;font-family:var(--display);font-weight:600;font-size:1.02rem;color:var(--ink)}
.q button svg{flex:none;transition:transform .25s}
.q[open] button svg{transform:rotate(45deg)}
.q .a{color:var(--ink-2);padding:0 0 20px;max-width:65ch}
details.q summary{list-style:none}
details.q summary::-webkit-details-marker{display:none}

/* contact */
.contact{background:var(--paper)}
.contact .grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;margin-top:40px}
.cinfo p{color:var(--ink-2);margin-top:10px}
.cinfo .line{margin-top:22px;font-size:.95rem}
.cinfo .line b{display:block;font-family:var(--display);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-bottom:4px}
.ok{background:#E6F7EE;border:1px solid #A9E3C3;color:#15603B;border-radius:12px;padding:16px;margin-top:16px;display:none}
.err{color:#B42318;font-size:.85rem;margin-top:6px;display:none}
@media (max-width:860px){.contact .grid{grid-template-columns:1fr}}

/* footer */
footer{background:var(--navy);color:#AFBEDC;padding:44px 0}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
footer img{height:34px;width:auto}
footer small{font-size:.82rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.hero canvas{display:none}}