*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#070c12;
  --bg-2:#0b1118;
  --surface:#0f1620;
  --surface-2:#121b26;
  --card:#101824;
  --card-2:#111a25;
  --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.12);
  --text:#eef4fb;
  --muted:#99a7b8;
  --accent:#86a7ff;
  --accent-2:#d9e5ff;
  --accent-soft:rgba(134,167,255,.12);
  --white:#ffffff;
  --shadow:0 30px 80px rgba(0,0,0,.38);
  --radius:28px;
  --radius-sm:20px;
  --container:1260px;
}
html,body{margin:0;padding:0}
body{
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  background:
    radial-gradient(circle at top left, rgba(134,167,255,.18), transparent 22%),
    radial-gradient(circle at top right, rgba(55,89,170,.14), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color:var(--text);
  line-height:1.72;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
.container{width:min(var(--container), calc(100% - 32px));margin:0 auto}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,12,18,.72);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  padding:16px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:max-content;
}
.brand-icon{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:15px;
  background:linear-gradient(135deg, #dfe9ff 0%, #8eb1ff 100%);
  color:#09111b;
  font-weight:900;
  font-size:20px;
  box-shadow:0 10px 28px rgba(134,167,255,.26);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.brand-text strong{
  font-size:18px;
  line-height:1;
}
.brand-text em{
  font-style:normal;
  color:var(--muted);
  font-size:12px;
  letter-spacing:.08em;
}
.main-nav{
  display:flex;
  gap:18px;
  margin-left:auto;
  align-items:center;
}
.main-nav a{
  color:var(--muted);
  font-size:14px;
  font-weight:700;
}
.main-nav a:hover{
  color:var(--white);
}
.header-actions{
  display:flex;
  gap:10px;
}
.menu-toggle{
  display:none;
  margin-left:auto;
  background:transparent;
  border:0;
  padding:0;
}
.menu-toggle span{
  display:block;
  width:24px;
  height:2px;
  background:var(--white);
  margin:5px 0;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  padding:12px 18px;
  cursor:pointer;
  font-weight:800;
  transition:transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  background:linear-gradient(135deg, #dfe8ff 0%, #88abff 100%);
  color:#09111b;
  box-shadow:0 14px 30px rgba(134,167,255,.22);
}
.btn-secondary{
  background:var(--white);
  color:#09111b;
}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--border-2);
  color:var(--text);
}

.hero-section{
  position:relative;
  overflow:hidden;
  padding:48px 0 36px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 15% 18%, rgba(151,179,255,.18), transparent 18%),
    radial-gradient(circle at 80% 22%, rgba(96,129,255,.12), transparent 24%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:0.92fr 1.08fr;
  gap:28px;
  align-items:center;
}
.hero-copy{
  padding:24px 0;
}
.eyebrow{
  display:inline-block;
  color:var(--accent-2);
  font-size:12px;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.hero-copy h1,
.section-head h2,
.overview-copy h2,
.download-copy h2,
.security-copy h2,
.support-copy h2,
.entry-copy h1{
  margin:16px 0 16px;
  font-size:clamp(38px, 5vw, 74px);
  line-height:.96;
  letter-spacing:-.055em;
}
.hero-copy p,
.section-head p,
.overview-copy p,
.product-info p,
.download-copy p,
.step-card p,
.insight-card p,
.support-copy p,
.faq-list p,
.entry-copy p{
  color:var(--muted);
  margin:0;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin:28px 0 26px;
}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:14px;
}
.hero-metrics div{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--border);
  border-radius:22px;
  padding:18px 18px 16px;
  box-shadow:var(--shadow);
}
.hero-metrics strong{
  display:block;
  font-size:28px;
  color:var(--white);
}
.hero-metrics span{
  display:block;
  font-size:13px;
  color:var(--muted);
}
.hero-visual{
  position:relative;
}
.visual-card,
.panel,
.quick-card,
.product-card,
.compare-table,
.step-card,
.insight-card,
.entry-card,
.overview-media,
.download-media,
.security-media,
.support-media{
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.025));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.visual-card{
  overflow:hidden;
  min-height:560px;
}
.visual-card img{
  width:100%;
  height:100%;
  min-height:560px;
  object-fit:cover;
}
.hero-pill{
  position:absolute;
  backdrop-filter:blur(14px);
  background:rgba(10,16,24,.72);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:14px 16px;
  box-shadow:0 18px 42px rgba(0,0,0,.34);
}
.hero-pill span{
  display:block;
  color:var(--muted);
  font-size:12px;
}
.hero-pill strong{
  display:block;
  margin-top:3px;
  font-size:18px;
}
.pill-left{left:22px;bottom:22px}
.pill-right{right:22px;top:22px}

.quick-section,
.content-section{padding:28px 0}
.section-head{
  margin-bottom:22px;
  max-width:850px;
}
.compact-center{
  text-align:center;
  margin-inline:auto;
}
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.quick-card{
  padding:24px;
  color:var(--text);
  text-align:left;
  cursor:pointer;
}
.quick-card.highlight{
  background:linear-gradient(180deg, rgba(134,167,255,.16), rgba(255,255,255,.04));
}
.card-index{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:var(--accent-soft);
  border:1px solid rgba(134,167,255,.22);
  color:var(--accent-2);
  font-weight:900;
  margin-bottom:16px;
}
.quick-card h3,
.product-info h3,
.step-card h3,
.insight-card h3,
.entry-card h2{
  margin:0 0 10px;
  font-size:28px;
  line-height:1.05;
  letter-spacing:-.04em;
}
.quick-card p{
  color:var(--muted);
  margin:0 0 14px;
}
.quick-card b,
.entry-card strong{
  word-break:break-all;
}

.split-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:center;
}
.split-grid.reverse{
  grid-template-columns:1fr 1fr;
}
.overview-copy,
.download-copy,
.security-copy,
.support-copy,
.entry-copy{
  padding:10px 0;
}
.journey-list,
.feature-stack{
  display:grid;
  gap:14px;
  margin-top:22px;
}
.journey-list div,
.feature-stack div{
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:18px;
  padding:15px 16px;
}
.journey-list strong,
.feature-stack strong{
  display:block;
  font-size:15px;
  color:var(--white);
}
.journey-list span,
.feature-stack span{
  display:block;
  color:var(--muted);
  font-size:14px;
}
.overview-media,
.download-media,
.security-media,
.support-media,
.entry-media{
  overflow:hidden;
}
.overview-media img,
.download-media img,
.security-media img,
.support-media img,
.entry-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.product-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
}
.product-card{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:18px;
  padding:20px;
}
.product-image-wrap{
  border-radius:22px;
  overflow:hidden;
  background:linear-gradient(180deg, #111c29 0%, #0f1822 100%);
  border:1px solid rgba(255,255,255,.08);
  padding:18px;
}
.product-image-wrap img{
  width:100%;
  aspect-ratio:1/1;
  object-fit:contain;
}
.product-code{
  display:block;
  color:var(--accent-2);
  font-size:12px;
  font-weight:900;
  letter-spacing:.16em;
}
.tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.tag-list span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--accent-2);
  font-size:13px;
}

.compare-table{
  overflow:hidden;
}
.compare-row{
  display:grid;
  grid-template-columns:1fr 1.45fr 1.2fr 1fr 1.45fr .62fr;
  gap:14px;
  align-items:center;
  padding:16px 20px;
  border-bottom:1px solid var(--border);
}
.compare-row:last-child{border-bottom:0}
.compare-header{
  background:rgba(255,255,255,.03);
  font-weight:900;
  color:var(--accent-2);
}
.compare-row span,
.compare-row strong{
  font-size:14px;
}
.mini-btn{
  background:rgba(255,255,255,.04);
  color:var(--text);
  border:1px solid var(--border-2);
  border-radius:999px;
  padding:10px 12px;
  cursor:pointer;
}

.steps-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:18px;
}
.step-card{
  padding:24px;
}
.step-card b{
  width:46px;
  height:46px;
  border-radius:14px;
  display:grid;
  place-items:center;
  margin-bottom:18px;
  background:linear-gradient(135deg, rgba(134,167,255,.2), rgba(255,255,255,.03));
  border:1px solid rgba(134,167,255,.2);
  color:var(--white);
}
.security-list{
  margin:20px 0 0;
  padding-left:20px;
}
.security-list li{
  margin-bottom:12px;
  color:var(--muted);
}

.insight-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:18px;
}
.insight-card{
  padding:24px;
}

.support-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:20px;
}

.faq-list{
  display:grid;
  gap:14px;
  max-width:960px;
  margin:0 auto;
}
.faq-list details{
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  border:1px solid var(--border);
  border-radius:22px;
  padding:18px 20px;
  box-shadow:var(--shadow);
}
.faq-list summary{
  list-style:none;
  cursor:pointer;
  font-weight:900;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list p{margin-top:12px}

.entry-hero-section{
  padding:48px 0 18px;
}
.entry-grid{
  display:grid;
  grid-template-columns:0.95fr 1.05fr;
  gap:28px;
  align-items:center;
}
.entry-card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.entry-card{
  padding:24px;
}

.site-footer{
  margin-top:12px;
  border-top:1px solid var(--border);
  background:rgba(255,255,255,.02);
}
.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  padding:24px 0 34px;
}
.footer-brand strong{
  font-size:22px;
}
.footer-brand p{
  margin:8px 0 0;
  max-width:620px;
  color:var(--muted);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:flex-end;
}
.footer-btn{
  background:transparent;
  color:var(--text);
  border:1px solid var(--border-2);
  border-radius:999px;
  padding:11px 16px;
  cursor:pointer;
}

.modal{
  display:none;
  position:fixed;
  inset:0;
  z-index:120;
  align-items:center;
  justify-content:center;
}
.modal.open{display:flex}
.modal-mask{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.62);
  backdrop-filter:blur(12px);
}
.modal-panel{
  position:relative;
  z-index:2;
  width:min(440px, calc(100% - 28px));
  background:linear-gradient(180deg, rgba(20,28,39,.98), rgba(13,19,27,.98));
  border:1px solid var(--border-2);
  border-radius:28px;
  box-shadow:0 40px 110px rgba(0,0,0,.55);
  padding:28px;
  text-align:center;
}
.modal-close{
  position:absolute;
  right:14px;
  top:10px;
  background:transparent;
  color:var(--text);
  border:0;
  font-size:34px;
  cursor:pointer;
}
.modal-panel h2{
  margin:0 0 18px;
  font-size:32px;
}
.modal-qr{
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--border);
}
.modal-qr img{
  width:100%;
}
.modal-links{
  margin-top:16px;
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
}
.modal-links a{
  padding:10px 14px;
  border-radius:999px;
  border:1px solid var(--border-2);
  background:rgba(255,255,255,.04);
}

.float-contact{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:70;
  border:1px solid rgba(134,167,255,.22);
  background:linear-gradient(135deg, #dfe8ff 0%, #88abff 100%);
  color:#09111b;
  border-radius:999px;
  padding:14px 18px;
  font-weight:900;
  box-shadow:0 16px 38px rgba(134,167,255,.24);
  cursor:pointer;
}
.lock{overflow:hidden}

@media (max-width:1180px){
  .main-nav,.header-actions{display:none}
  .menu-toggle{display:block}
  .hero-grid,
  .split-grid,
  .entry-grid,
  .product-grid,
  .quick-grid,
  .entry-card-grid,
  .insight-grid{
    grid-template-columns:1fr;
  }
  .product-card{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .compare-header{display:none}
  .compare-row{
    grid-template-columns:1fr 1fr;
  }
  .footer-inner{
    flex-direction:column;
  }
  .footer-links{
    align-items:flex-start;
  }
}
@media (max-width:760px){
  .container{width:min(var(--container), calc(100% - 24px))}
  .hero-copy h1,
  .section-head h2,
  .overview-copy h2,
  .download-copy h2,
  .security-copy h2,
  .support-copy h2,
  .entry-copy h1{
    font-size:40px;
  }
  .hero-metrics{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:1fr;
  }
  .compare-row{
    grid-template-columns:1fr;
  }
  .visual-card{min-height:auto}
  .visual-card img{min-height:auto}
  .hero-actions,
  .support-actions{
    flex-direction:column;
  }
  .btn{
    width:100%;
  }
  .site-header .container{
    width:calc(100% - 24px);
  }
  .hero-section{padding-top:26px}
}