:root{
  --bg:#0b0f15;
  --panel:#111822;
  --panel-2:#182232;
  --panel-3:#0f141c;
  --text:#f6f8fb;
  --muted:#bac5d4;
  --line:rgba(255,255,255,.1);
  --gold:#d3b270;
  --red:#c53b3b;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at right top,rgba(197,59,59,.14),transparent 20%),
    linear-gradient(180deg,#090d12,#0d1118 50%,#0a0e13);
  color:var(--text);
  font-family:"Verdana","Microsoft YaHei","PingFang SC",sans-serif;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{font:inherit}

.wrap{
  width:min(1180px,calc(100% - 32px));
  margin:0 auto;
}

.pc-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(9,13,18,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-row{
  min-height:76px;
  display:grid;
  grid-template-columns:auto auto 1fr auto;
  gap:18px;
  align-items:center;
}
.brand img{
  width:160px;
  max-height:44px;
  object-fit:contain;
}
.nav{
  display:flex;
  justify-content:center;
  gap:24px;
  font-size:14px;
  font-weight:800;
}
.nav a:hover{color:#fff}
.menu-toggle{
  display:none;
  width:42px;
  height:42px;
  padding:0;
  border:0;
  background:transparent;
}
.menu-toggle span{
  display:block;
  width:24px;
  height:2px;
  margin:5px auto;
  background:#fff;
}
.header-cta{
  min-height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 22px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--gold),#f0e0a9);
  color:#111;
  font-weight:800;
}

.hero,
.download-section,
.desktop-section,
.requirements-section,
.faq-section,
.cta-section{
  padding:84px 0;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:34px;
  align-items:center;
}
.eyebrow{
  margin:0 0 14px;
  color:var(--gold);
  font-size:12px;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.hero-copy h1{
  margin:0;
  font-size:clamp(36px,5vw,62px);
  line-height:1.04;
  letter-spacing:-.04em;
}
.hero-copy p{
  margin:18px 0 0;
  color:var(--muted);
  font-size:18px;
  line-height:1.82;
}
.hero-metrics{
  margin-top:26px;
  display:grid;
  gap:14px;
}
.hero-metrics div{
  padding:18px 20px;
  border-radius:22px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.hero-metrics strong{
  display:block;
  font-size:18px;
}
.hero-metrics span{
  display:block;
  margin-top:8px;
  color:var(--muted);
}
.hero-media{
  margin:0;
  padding:24px;
  border-radius:30px;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);
}
.hero-media img{
  width:100%;
  max-height:500px;
  object-fit:contain;
}

.download-layout{
  display:grid;
  grid-template-columns:380px 1fr;
  gap:28px;
  align-items:start;
}
.download-media{
  margin:0;
  padding:24px;
  border-radius:28px;
  background:#111822;
  border:1px solid var(--line);
}
.download-media img{
  width:100%;
  max-height:420px;
  object-fit:contain;
}
.download-copy h2,
.desktop-copy h2,
.requirements-copy h2,
.faq-copy h2{
  margin:0;
  font-size:clamp(30px,4vw,44px);
}
.download-copy p,
.desktop-copy p,
.requirements-copy p,
.faq-copy p{
  margin:14px 0 0;
  color:var(--muted);
  line-height:1.8;
}
.guide-list{
  margin-top:24px;
  display:grid;
  gap:14px;
}
.guide-list article{
  padding:20px 22px;
  border-radius:22px;
  background:linear-gradient(180deg,#121926,#0f141d);
  border:1px solid var(--line);
}
.guide-list h3{
  margin:0 0 10px;
  font-size:24px;
}
.guide-list p{
  margin:0;
}

.desktop-shell{
  display:grid;
  grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  gap:28px;
  align-items:center;
}
.desktop-media{
  margin:0;
  padding:24px;
  border-radius:28px;
  background:linear-gradient(180deg,#121b27,#0d131b);
  border:1px solid var(--line);
}
.desktop-media img{
  width:100%;
  max-height:420px;
  object-fit:contain;
}

.requirements-grid{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:26px;
  align-items:start;
}
.requirements-table{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.requirements-table div{
  padding:22px 24px;
  border-radius:22px;
  background:linear-gradient(180deg,var(--panel-3),#0c1219);
  border:1px solid var(--line);
}
.requirements-table strong{
  display:block;
  font-size:18px;
}
.requirements-table span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  line-height:1.75;
}

.faq-shell{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:24px;
}
.faq-list{
  display:grid;
  gap:14px;
}
.faq-item{
  border-radius:22px;
  background:linear-gradient(180deg,#131b27,#0e141c);
  border:1px solid var(--line);
  overflow:hidden;
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  border:0;
  background:transparent;
  color:#fff;
  text-align:left;
  cursor:pointer;
}
.faq-question span{
  font-size:18px;
  font-weight:700;
}
.faq-question b{
  font-size:28px;
  line-height:1;
}
.faq-answer{
  display:none;
  padding:0 22px 22px;
}
.faq-item.is-open .faq-answer{display:block}
.faq-item.is-open .faq-question b{transform:rotate(45deg)}
.faq-answer p{
  margin:0;
  color:var(--muted);
  line-height:1.8;
}

.cta-box{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:32px;
  border-radius:28px;
  background:linear-gradient(90deg,#10161f,#1a1111 52%,#231b10);
  border:1px solid var(--line);
}
.cta-box h2{
  margin:0;
  font-size:clamp(28px,3vw,40px);
}

@media (max-width: 980px){
  .header-row{
    grid-template-columns:auto auto 1fr;
  }
  .menu-toggle{display:block}
  .nav{
    display:none;
    grid-column:1 / -1;
    padding:0 0 16px;
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
  }
  .pc-header.is-open .nav{display:flex}
  .hero-grid,
  .download-layout,
  .desktop-shell,
  .requirements-grid,
  .faq-shell,
  .cta-box{
    grid-template-columns:1fr;
  }
  .requirements-table{
    grid-template-columns:1fr;
  }
}

@media (max-width: 640px){
  .header-row{
    grid-template-columns:auto auto;
  }
  .header-cta{
    grid-column:1 / -1;
    width:100%;
  }
  .hero,
  .download-section,
  .desktop-section,
  .requirements-section,
  .faq-section,
  .cta-section{
    padding:64px 0;
  }
  .faq-question span{
    font-size:16px;
  }
}

.site-logo,
.logo img,
.brand img,
.header-logo img,
.nav-logo img {
  display: block;
  width: auto !important;
  height: auto !important;
  max-height: 40px !important;
  max-width: 180px !important;
  object-fit: contain !important;
}

.brand,
.logo,
.header-logo,
.nav-logo {
  overflow: visible !important;
}

.site-header .brand,
header .brand,
header .logo,
header .header-logo,
header .nav-logo {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}