:root{
  --bg:#f5f1ea;
  --paper:#fffaf2;
  --ink:#121212;
  --muted:#5c5954;
  --line:#ddd5c8;
  --red:#b61d24;
  --dark:#111111;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, "Noto Sans SC", Arial, Helvetica, sans-serif;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.lang-zh{
  font-family:"Noto Sans SC", Inter, Arial, Helvetica, sans-serif;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(var(--max), calc(100% - 36px));margin:0 auto}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(245,241,234,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  min-height:82px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  position:relative;
}
.brand img{
  width:205px;
  height:auto;
}
.menu{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:14px;
  color:#3e3b36;
}
.menu a:hover{color:var(--red)}
.cta{
  padding:12px 18px;
  border:1px solid var(--ink);
  font-weight:700;
  font-size:13px;
  transition:.2s;
}
.cta:hover{background:var(--ink);color:#fff}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  order:3;
}
.lang-toggle{
  border:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  padding:10px 14px;
  font-weight:800;
  font-size:13px;
  cursor:pointer;
  min-width:64px;
}
.lang-toggle:hover{
  background:var(--ink);
  color:#fff;
}
.mobile-toggle{
  display:none;
  background:transparent;
  border:0;
  font-size:26px;
  cursor:pointer;
}

.hero{
  padding:88px 0 72px;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0, 1.18fr) minmax(340px, 0.82fr);
  gap:72px;
  align-items:end;
}
.eyebrow{
  color:var(--red);
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:12px;
  font-weight:800;
  margin:0 0 20px;
}
body.lang-zh .eyebrow{
  letter-spacing:.08em;
}
h1{
  margin:0;
  font-size:clamp(52px, 8vw, 108px);
  line-height:.92;
  letter-spacing:-.075em;
  font-weight:800;
  max-width:700px;
}
body.lang-zh h1{
  letter-spacing:-.055em;
  line-height:1;
}
.hero-copy{
  font-size:clamp(17px,2vw,21px);
  line-height:1.65;
  color:var(--muted);
  margin:28px 0 0;
  max-width:560px;
}

.platform-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.platform-label{
  color:var(--muted);
  font-size:13px;
  font-weight:700;
  margin-right:4px;
}
.platform-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  border:1px solid var(--line);
  background:#fff;
}
.platform-badge img{
  width:28px;
  height:28px;
  border-radius:8px;
  object-fit:cover;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:34px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  padding:0 22px;
  border:1px solid var(--ink);
  font-weight:800;
}
.btn.primary{
  background:var(--ink);
  color:#fff;
}
.btn.primary:hover{
  background:var(--red);
  border-color:var(--red);
}
.btn.secondary:hover{
  background:#fff;
}
.hero-card{
  background:var(--dark);
  color:#fff;
  padding:34px;
  min-height:420px;
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.hero-card:before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 85% 14%, rgba(182,29,36,.6), transparent 26%),
    linear-gradient(135deg, rgba(255,255,255,.08), transparent 45%);
}
.hero-card > *{position:relative;z-index:1}
.hero-card-label{
  font-size:12px;
  letter-spacing:.18em;
  color:rgba(255,255,255,.66);
  text-transform:uppercase;
}
.hero-card strong{
  display:block;
  margin-top:18px;
  font-size:clamp(38px,5vw,76px);
  line-height:.92;
  letter-spacing:-.06em;
}
body.lang-zh .hero-card strong{
  letter-spacing:-.04em;
  line-height:1.05;
}
.hero-card p{
  margin:0;
  color:rgba(255,255,255,.74);
  line-height:1.6;
  font-size:15px;
  max-width:360px;
}

.strip{
  background:var(--ink);
  color:#fff;
  padding:18px 0;
}
.strip-inner{
  display:flex;
  flex-wrap:wrap;
  gap:32px;
}
.strip span{
  color:rgba(255,255,255,.72);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
body.lang-zh .strip span{
  letter-spacing:.08em;
}

section{
  padding:92px 0;
  border-bottom:1px solid var(--line);
}
.section-head{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:54px;
  align-items:start;
  margin-bottom:46px;
}
h2{
  margin:0;
  font-size:clamp(34px, 5vw, 68px);
  line-height:.96;
  letter-spacing:-.06em;
  font-weight:800;
}
body.lang-zh h2{
  letter-spacing:-.04em;
  line-height:1.05;
}
.lead{
  color:var(--muted);
  line-height:1.72;
  font-size:18px;
  margin:0;
  max-width:680px;
}

.services-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  border-top:1px solid var(--ink);
  border-left:1px solid var(--ink);
}
.service{
  min-height:300px;
  padding:34px;
  border-right:1px solid var(--ink);
  border-bottom:1px solid var(--ink);
  background:rgba(255,255,255,.28);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:26px;
}
.service:hover{
  background:#fffaf2;
}
.service-app-icon{
  width:54px;
  height:54px;
  border-radius:15px;
  object-fit:cover;
  box-shadow:0 12px 24px rgba(0,0,0,.12);
}
.letter-icon{
  width:54px;
  height:54px;
  display:grid;
  place-items:center;
  border-radius:15px;
  color:#fff;
  background:#161616;
  font-size:22px;
  font-weight:800;
}
.service h3{
  font-size:30px;
  line-height:1.06;
  letter-spacing:-.04em;
  margin:0 0 14px;
}
body.lang-zh .service h3{
  letter-spacing:-.03em;
}
.service p{
  margin:0;
  color:var(--muted);
  line-height:1.65;
  max-width:520px;
}

.about-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:start;
}
.quote{
  background:var(--red);
  color:#fff;
  padding:46px;
  min-height:350px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.quote p:first-child{
  margin:0;
  font-size:clamp(26px,4vw,46px);
  line-height:1;
  letter-spacing:-.05em;
  font-weight:800;
}
body.lang-zh .quote p:first-child{
  line-height:1.12;
}
.quote p:last-child{
  margin:0;
  color:rgba(255,255,255,.78);
  line-height:1.62;
}
.bullets{
  margin:26px 0 0;
  padding:0;
  list-style:none;
  border-top:1px solid var(--line);
}
.bullets li{
  padding:16px 0;
  border-bottom:1px solid var(--line);
  color:#302d29;
}

.process-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  border-left:1px solid var(--line);
  border-top:1px solid var(--line);
}
.step{
  padding:30px;
  min-height:240px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.step strong{
  color:var(--red);
  font-size:13px;
  letter-spacing:.14em;
}
.step h3{
  font-size:23px;
  line-height:1.1;
  margin:38px 0 14px;
  letter-spacing:-.03em;
}
.step p{
  margin:0;
  color:var(--muted);
  line-height:1.6;
  font-size:15px;
}

.contact{
  background:var(--ink);
  color:#fff;
  border-bottom:0;
}
.contact .eyebrow{
  color:#ffb5b9;
}
.contact .lead{
  color:rgba(255,255,255,.7);
}
.contact .btn{
  border-color:#fff;
}
.contact .btn.primary{
  background:#fff;
  color:var(--ink);
}
.contact .btn.secondary{
  color:#fff;
}
.contact-meta{
  margin-top:42px;
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:20px;
  color:rgba(255,255,255,.66);
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:24px;
}
.contact-meta strong{
  display:block;
  color:#fff;
  margin-bottom:8px;
}

footer{
  background:var(--ink);
  color:rgba(255,255,255,.5);
  padding:24px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
}
.foot{
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}

@media(min-width:1101px) and (max-width:1250px){
  .hero-grid{
    grid-template-columns:minmax(0, 1.05fr) minmax(300px, .7fr);
    gap:42px;
  }
  h1{
    font-size:clamp(48px, 6.4vw, 86px);
    max-width:650px;
  }
  .hero-copy{
    max-width:500px;
  }
  .hero-card{
    min-height:360px;
    padding:28px;
  }
  .hero-card strong{
    font-size:clamp(34px,4vw,58px);
  }
}

@media(max-width:1100px){
  .menu{
    display:none;
    position:absolute;
    top:78px;
    left:18px;
    right:18px;
    background:var(--paper);
    border:1px solid var(--line);
    padding:18px;
    flex-direction:column;
    align-items:flex-start;
  }
  .menu.open{display:flex}
  .mobile-toggle{display:block}
  .hero{padding:56px 0 46px}
  .hero-grid,.section-head,.about-wrap{grid-template-columns:1fr;gap:34px}
  .hero-card{min-height:300px}
  .hero-copy{max-width:680px}
  .services-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .contact-meta{grid-template-columns:1fr}
}
@media(max-width:560px){
  .container{width:min(var(--max), calc(100% - 30px))}
  .nav{min-height:72px}
  .brand img{width:168px}
  h1{font-size:52px}
  body.lang-zh h1{font-size:48px}
  section{padding:72px 0}
  .hero-copy,.lead{font-size:16px}
  .btn{width:100%}
  .hero-actions{width:100%}
  .process-grid{grid-template-columns:1fr}
  .service{padding:26px;min-height:245px}
  .service h3{font-size:26px}
  .quote{padding:30px}
  .platform-row{align-items:flex-start}
  .platform-badge{padding:7px 10px}
}


.contact-meta a,
footer a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-meta {
  grid-template-columns:repeat(5, 1fr);
}

@media(max-width:1100px){
  .contact-meta{
    grid-template-columns:1fr;
  }
}