:root{
  --bg: #070a18;
  --bg-soft:#0b1020;
  --text:#e9ecf6;
  --muted:#a7afc8;
  --primary:#635bff;
  --primary-2:#7c3aed;
  --ring:#94a3b8;
  --card:#0f1530;
  --white:#ffffff;
  --touch:44px;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html,body{
  margin:0;padding:0;
  background: radial-gradient(1400px 900px at 80% -10%, rgba(99,91,255,.16), transparent),
              radial-gradient(1000px 700px at 10% -10%, rgba(124,58,237,.12), transparent),
              linear-gradient(180deg,#070a18,#0a0f22 60%, #0b1228);
  color:var(--text);
  font:16px/1.65 "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,sans-serif;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:#c7ccff;text-decoration:none}
a:hover{text-decoration:underline}
.nowrap{white-space:nowrap}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}
.muted{color:var(--muted)}
.lead{font-size:1.125rem;color:#dbe0ff}
.micro{font-size:.9rem}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:880px}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:20px;top:20px;width:auto;height:auto;background:#fff;color:#000;padding:8px 12px;border-radius:8px}

.site-header{position:sticky;top:0;background:rgba(7,10,24,.6);backdrop-filter: blur(10px);z-index:999;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:36px;height:36px}
.brand-text{font-weight:700;color:#fff;font-size:1.05rem;letter-spacing:.02em}

.nav-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.2);padding:10px 14px;border-radius:12px}
.nav-list{display:flex;gap:20px;list-style:none;margin:0;padding:0}
.nav-list a{display:block;padding:10px 12px;border-radius:12px}
.nav-list a:hover{background:rgba(255,255,255,.06);text-decoration:none}
@media (max-width: 900px){
  .nav-toggle{display:inline-block}
  .nav-list{display:none;position:absolute;right:24px;top:62px;background:rgba(15,21,48,.98);padding:12px;border-radius:14px;flex-direction:column;box-shadow:var(--shadow)}
  .nav-list.open{display:flex}
}

.hero.hero-full{min-height:72vh;display:grid;place-items:center}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}
.hero-copy h1{font-size:2.6rem;line-height:1.2;margin:.15em 0 .35em;letter-spacing:.4px}
.hero-bullets{list-style:none;padding:0;margin:12px 0 22px;display:grid;gap:8px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;box-shadow:0 6px 24px rgba(99,91,255,.25)}
.btn.primary{background:linear-gradient(90deg,var(--primary),var(--primary-2));color:#fff}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.18);color:#fff}
.btn.white{background:#fff;color:#10121f}
.btn.outline{background:transparent;border-color:#fff;color:#fff}
.hero-art{filter: drop-shadow(0 20px 60px rgba(124,58,237,.22))}

section{padding:54px 0}
.trust h2,.showcase h2,.faq h2{font-size:1.7rem;margin:0 0 14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:18px;box-shadow:var(--shadow)}
.card h3{margin:.2em 0 .4em}
.cards-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:12px}
.product-card{display:block;border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:16px;background:rgba(255,255,255,.02)}
.product-card:hover{border-color:rgba(255,255,255,.34);text-decoration:none}

.faq details{border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:12px 14px;background:rgba(255,255,255,.02);margin:10px 0}
.faq summary{cursor:pointer;font-weight:700}

.cta-banner{padding:36px 0 60px}
.banner-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:20px;background:linear-gradient(90deg,rgba(99,91,255,.22),rgba(124,58,237,.15))}
.banner-actions{display:flex;gap:12px;flex-wrap:wrap}

.site-footer{margin-top:36px;border-top:1px solid rgba(255,255,255,.12);padding:26px 0 40px;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:18px}
.footer-title{margin:0 0 10px;font-size:1rem}
.contact-list,.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-right .slogan{font-weight:800;margin-bottom:6px}

@media (max-width: 1080px){
  .container{max-width:1000px}
  .hero-copy h1{font-size:2.3rem}
}
@media (max-width: 900px){
  .hero-inner{grid-template-columns:1fr}
}
@media (max-width: 640px){
  html{font-size:15px}
  .hero.hero-full{min-height:64vh}
  .cards-row{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn,.nav-toggle,.nav-list a{min-height:var(--touch);padding:12px 16px}
}
@media (min-width: 1440px){
  html{font-size:17px}
  .container{max-width:1280px}
}