:root{
  --ink:#08192a;
  --ink-2:#20415c;
  --muted:#5b788f;
  --line:#d8e4ec;
  --paper:#ffffff;
  --wash:#f2f7fa;
  --cy:#0a87ab;
  --cy-2:#12b6d8;
  --cy-soft:#e2f5fa;
  --amber:#e08a16;
  --r:2px;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",Noto Sans CJK SC,system-ui,sans-serif;
  color:var(--ink);background:var(--paper);
  font-size:17px;line-height:1.72;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{line-height:1.22;letter-spacing:-.015em;margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(2.1rem,5.1vw,3.65rem);letter-spacing:-.03em}
h2{font-size:clamp(1.55rem,3.2vw,2.35rem)}
h3{font-size:1.12rem}
p{margin:0 0 1rem}
em{font-style:normal;color:var(--cy-2)}
a{color:var(--cy);text-decoration:none}
img{display:block;max-width:100%;height:auto}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:26px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--ink);color:#fff;padding:.7rem 1.1rem}
.skip:focus{left:12px;top:12px}
:focus-visible{outline:3px solid var(--cy-2);outline-offset:3px}

/* ---------- chrome ---------- */
.topbar{background:var(--ink);color:#b9d2e2;font-size:.83rem;letter-spacing:.01em}
.topbar .wrap{display:flex;justify-content:space-between;gap:1rem;padding-block:.5rem}
.topbar a{color:#fff}
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:.85rem}
.brand{display:flex;align-items:center;gap:.65rem;color:var(--ink)}
.brand-logo{width:46px;height:46px;border-radius:50%;object-fit:cover;background:#fff;box-shadow:0 0 0 1px rgba(8,25,42,.08) inset}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong{font-size:.92rem;letter-spacing:.01em;white-space:nowrap}
.brand-txt small{font-size:.6rem;letter-spacing:.18em;color:var(--muted)}
#menu ul{display:flex;align-items:center;gap:1.45rem;font-size:.93rem}
#menu a{color:var(--ink-2);padding-block:.35rem;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
#menu a:hover{color:var(--cy)}
#menu a.on{color:var(--cy);border-color:var(--cy-2)}
#menu a.cta{background:var(--ink);color:#fff;padding:.55rem 1.05rem;border:0;border-radius:var(--r);font-weight:600}
#menu a.cta:hover{background:var(--cy)}
.nav-btn{display:none;background:none;border:0;padding:.4rem;cursor:pointer}
.nav-btn .bar{display:block;width:22px;height:2px;background:var(--ink);margin:4px 0;transition:transform .25s var(--ease),opacity .2s}
.nav-btn[aria-expanded=true] .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-btn[aria-expanded=true] .bar:nth-child(2){opacity:0}
.nav-btn[aria-expanded=true] .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;color:#fff;padding:clamp(3.4rem,8vw,6.6rem) 0 clamp(3rem,6vw,5rem);overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:
  linear-gradient(103deg,rgba(6,20,34,.95) 0 42%,rgba(6,20,34,.72) 62%,rgba(6,20,34,.42));}
.hero::before{content:"";position:absolute;inset:auto 0 0;z-index:-1;height:1px;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 1px,transparent 1px 14px);opacity:.35}
.hero-in{max-width:var(--wrap)}
.hero h1{max-width:20ch;margin-bottom:.7rem}
.hero h1 em{color:#7ce7f7}
.lede{max-width:60ch;color:#d5e6f0;font-size:1.06rem}
.eyebrow{font-size:.74rem;letter-spacing:.26em;text-transform:uppercase;color:var(--cy-2);font-weight:700;margin-bottom:.85rem}
.hero .eyebrow{color:#8fdff0}
.hero-cta{display:flex;flex-wrap:wrap;gap:.85rem;margin:1.9rem 0 2.6rem}
.btn{display:inline-block;font-size:.95rem;font-weight:600;padding:.8rem 1.5rem;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s}
.btn.primary{background:var(--cy-2);color:#04202c}
.btn.primary:hover{background:#5fdef2;transform:translateY(-1px)}
.btn.ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.13)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:0;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18)}
.stats>div{background:rgba(6,20,34,.55);padding:1.05rem 1.15rem;backdrop-filter:blur(4px)}
.stats dt{display:flex;align-items:baseline;gap:.2rem;font-size:1.85rem;font-weight:700;color:#fff}
.stats dt i{font-style:normal;font-size:.8rem;color:#a8ccdd;font-weight:500}
.stats dd{margin:.15rem 0 0;font-size:.82rem;color:#b3cfdf}

/* ---------- sections ---------- */
.sec{padding-block:clamp(3.6rem,7vw,6.4rem)}
.sec.alt{background:var(--wash);border-block:1px solid var(--line)}
.grid-2{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,5vw,4.2rem);align-items:start}
.grid-2.rev{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr)}
.sec-head{max-width:64ch}
.sec-head.wide{max-width:70ch;margin-bottom:2.6rem}
.muted{color:var(--muted)}
.shot{margin:0;position:sticky;top:120px}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);background:#fff}
.shot figcaption{font-size:.83rem;color:var(--muted);padding-top:.7rem;border-left:2px solid var(--cy-2);margin-top:.7rem;padding-left:.8rem}
.ticks li{position:relative;padding-left:1.55rem;margin-bottom:.6rem;font-size:.97rem}
.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;border-left:2px solid var(--cy);border-bottom:2px solid var(--cy);transform:rotate(-45deg)}

.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:clamp(2.4rem,5vw,4rem)}
.timeline>div{background:#fff;padding:1.1rem}
.timeline b{color:var(--cy);font-size:1.05rem;letter-spacing:.03em}
.timeline p{margin:.35rem 0 0;font-size:.85rem;color:var(--ink-2);line-height:1.6}

/* ---------- process lab ---------- */
.flow{display:grid;grid-template-columns:repeat(9,1fr);gap:8px;margin:0 0 2rem;padding:0;counter-reset:s}
.flow li{min-width:0}
.flow button{width:100%;height:100%;text-align:left;font:inherit;font-size:.78rem;line-height:1.35;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:.7rem .6rem;cursor:pointer;
  display:flex;flex-direction:column;gap:.3rem;color:var(--ink-2);transition:background .2s,border-color .2s,color .2s,transform .2s}
.flow button span{font-size:.68rem;letter-spacing:.12em;color:var(--muted)}
.flow button:hover{border-color:var(--cy-2);transform:translateY(-2px)}
.flow button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.flow button[aria-pressed=true] span{color:var(--cy-2)}
.lab{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.8fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.readout{background:#fff;padding:clamp(1.3rem,3vw,2.1rem)}
.stage-name{font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cy);font-weight:700;margin-bottom:.4rem}
.big{display:flex;align-items:baseline;gap:.5rem;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:1.1rem;margin-bottom:1.1rem}
.big b{font-size:clamp(2.4rem,6vw,3.6rem);font-weight:700;letter-spacing:-.03em;line-height:1}
.big span{font-size:1rem;color:var(--ink-2);font-weight:600}
.big small{margin-left:auto;color:var(--muted);font-size:.78rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin:0}
.grid-3 dt{font-size:.75rem;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.grid-3 dd{margin:.25rem 0 0;font-size:.93rem;font-weight:600}
.slider-box{background:#fff;padding:clamp(1.3rem,3vw,2.1rem);display:flex;flex-direction:column;justify-content:center;gap:.8rem}
.slider-box label{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
#stageRange{width:100%;accent-color:var(--cy);height:32px;cursor:grab}
.scale{display:flex;justify-content:space-between;font-size:.75rem;color:var(--muted)}

/* ---------- product cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem)}
.card{display:flex;flex-direction:column;border:1px solid var(--line);background:#fff;transition:box-shadow .25s var(--ease),transform .25s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(8,25,42,.42)}
.card figure{margin:0;overflow:hidden;background:var(--wash)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s var(--ease)}
.card:hover img{transform:scale(1.045)}
.card-body{padding:1.3rem 1.35rem 1.5rem;display:flex;flex-direction:column;flex:1}
.card p{font-size:.9rem;color:var(--ink-2)}
.spec{margin:.4rem 0 1.1rem;border-top:1px solid var(--line)}
.spec li{display:flex;justify-content:space-between;gap:1rem;font-size:.85rem;padding:.5rem 0;border-bottom:1px solid var(--line)}
.spec span{color:var(--muted)}
.spec b{font-weight:600;text-align:right}
.more{margin-top:auto;font-size:.87rem;font-weight:600}
.more:hover{color:var(--cy-2)}

/* ---------- markets ---------- */
.markets{margin:1.6rem 0 0}
.markets>div{padding:.95rem 0;border-top:1px solid var(--line)}
.markets dt{font-weight:700;font-size:.98rem}
.markets dd{margin:.25rem 0 0;font-size:.9rem;color:var(--ink-2)}

/* ---------- quality / service ---------- */
.quality,.service{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.quality{grid-template-columns:repeat(3,1fr)}
.quality>div,.service>div{background:#fff;padding:1.5rem}
.sec.alt .quality>div,.sec.alt .service>div{background:#fff}
.quality h3,.service h3{margin-bottom:.85rem}
.quality ul li{font-size:.9rem}
.service{grid-template-columns:repeat(4,1fr);margin-bottom:1.4rem}
.service>div p{margin:0;font-size:.88rem;color:var(--ink-2)}
.service b{display:block;font-size:1.5rem;color:var(--cy-2);font-weight:700;margin-bottom:.5rem}
.remote{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.2rem;background:var(--ink);color:#d5e6f0;padding:1.4rem 1.6rem;margin-top:1.4rem}
.remote p{margin:0;max-width:70ch;font-size:.94rem}
.remote b{color:#fff}
.remote .btn{flex-shrink:0}

/* ---------- contact ---------- */
.contact-list{margin:1.4rem 0 0}
.contact-list li{display:flex;gap:1rem;padding:.75rem 0;border-top:1px solid var(--line);font-size:.95rem;flex-wrap:wrap}
.contact-list span{min-width:4.5rem;color:var(--muted);font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;padding-top:.15rem}
.form{background:var(--wash);border:1px solid var(--line);padding:clamp(1.4rem,3vw,2.1rem)}
.form h3{margin-bottom:1.2rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form label{display:block;font-size:.83rem;font-weight:600;color:var(--ink-2);margin-bottom:1rem}
.form input,.form select,.form textarea{width:100%;font:inherit;font-weight:400;margin-top:.4rem;padding:.65rem .75rem;
  border:1px solid #b9cede;background:#fff;border-radius:var(--r);color:var(--ink)}
.form textarea{resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--cy-2);outline:none;box-shadow:0 0 0 3px var(--cy-soft)}
.local-note{font-size:.78rem;color:var(--muted);margin-bottom:1rem}
.form .btn{width:100%}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:#a9c5d6;padding:clamp(2.4rem,5vw,3.6rem) 0 2rem;font-size:.88rem}
.foot-in{display:grid;grid-template-columns:1.2fr 1fr;gap:2rem}
.foot .brand{color:#fff}
.foot p{margin:.7rem 0 0}
.foot nav{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;align-content:start}
.foot nav a{color:#c2dbe9}
.foot nav a:hover{color:#fff}
.fine{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.15);padding-top:1.2rem;font-size:.78rem;color:#7d9db1;line-height:1.7}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(5,1fr)}
  .timeline{grid-template-columns:repeat(3,1fr)}
  .quality,.service{grid-template-columns:1fr 1fr}
  .lab{grid-template-columns:1fr}
  .grid-2,.grid-2.rev{grid-template-columns:1fr}
  .shot{position:static}
}
@media (max-width:760px){
  body{font-size:16px}
  html{scroll-padding-top:76px}
  .hide-sm{display:none}
  .nav-btn{display:block}
  #menu{position:absolute;inset:100% 0 auto;display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -24px rgba(8,25,42,.5)}
  #menu.open{display:block}
  #menu ul{flex-direction:column;align-items:stretch;gap:0;padding:.4rem 26px 1.1rem}
  #menu li{border-top:1px solid var(--line)}
  #menu a{display:block;padding:.85rem 0;border-bottom:0}
  #menu a.cta{margin-top:.8rem;text-align:center}
  .stats{grid-template-columns:1fr 1fr}
  .cards,.quality,.service{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr;gap:.8rem}
  .row{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr}
  .remote{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .rv{opacity:1;transform:none}
}