:root{--bg:#0b0e14;--text:#e6e9ef;--muted:#aab2c0;--brand:#6ea8fe;--accent:#a78bfa;--card:#121621;--border:#1b2130;--success:#34d399;--danger:#ef4444}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol"}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.site-header{position:sticky;top:0;backdrop-filter:saturate(180%) blur(6px);background:rgba(11,14,20,.7);border-bottom:1px solid var(--border);z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand .logo{font-weight:800;font-size:20px;letter-spacing:.4px;color:#fff}
.nav{display:flex;gap:18px}
.nav-link{color:var(--muted);text-decoration:none;font-size:14px}
.nav-link:hover{color:#fff}
.lang-switch{display:flex;align-items:center;gap:8px}
.lang-btn{background:transparent;border:none;color:var(--muted);cursor:pointer;padding:6px 8px;border-radius:6px;font-weight:600}
.lang-btn.active{color:#fff;background:#1a2030}
.divider{color:var(--border)}
.hero{padding:88px 0;background:radial-gradient(1200px 500px at 20% 0%,rgba(110,168,254,.15),transparent 60%),radial-gradient(900px 500px at 80% 0%,rgba(167,139,250,.12),transparent 60%)}
.hero-inner{text-align:center}
.hero-title{font-size:36px;line-height:1.2;margin:0 0 12px}
.hero-subtitle{font-size:18px;color:var(--muted);margin:0 0 20px}
.hero-actions{display:flex;gap:12px;justify-content:center;margin-top:10px}
.btn{display:inline-block;padding:12px 18px;border-radius:10px;text-decoration:none;font-weight:700;font-size:14px}
.btn.primary{background:var(--brand);color:#0b0e14}
.btn.secondary{background:#1a2030;color:#fff;border:1px solid var(--border)}
.btn.small{padding:10px 14px;font-weight:600}
.hero-note{margin-top:20px;font-size:13px;color:var(--muted)}
.section{padding:64px 0}
.section.alt{background:#0e1220}
.section-title{font-size:24px;margin:0 0 24px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.card-title{margin:0 0 8px;font-size:16px}
.card-desc{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.steps{display:flex;flex-direction:column;gap:14px}
.step{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.step-index{min-width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#1a2030;color:#fff;font-weight:800}
.step-title{margin:0 0 4px;font-size:16px}
.step-desc{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.download{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.dl-block{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.dl-title{margin:0 0 8px;font-size:16px}
.dl-list{margin:10px 0 0 18px;color:var(--muted)}
.dl-desc{margin:0;color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px}
.faq-q{margin:0 0 10px;font-size:16px;color:#fff}
.faq-a{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.site-footer{border-top:1px solid var(--border);padding:48px 0 24px;background:#0b0e14}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand{font-weight:800;font-size:20px;color:#fff;margin-bottom:12px}
.footer-slogan{color:var(--muted);font-size:14px;margin:0}
.footer-heading{color:#fff;font-size:14px;font-weight:700;margin:0 0 16px;text-transform:uppercase;letter-spacing:0.5px}
.footer-link{display:block;color:var(--muted);text-decoration:none;font-size:14px;margin-bottom:10px;transition:color 0.2s}
.footer-link:hover{color:#fff}
.footer-link.disabled{cursor:default;opacity:0.5}
.footer-link.disabled:hover{color:var(--muted)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
@media (max-width:960px){
.grid{grid-template-columns:repeat(2,1fr)}
.download{grid-template-columns:1fr}
.faq-grid{grid-template-columns:1fr}
.footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
.nav{display:none}
.grid{grid-template-columns:1fr}
.hero-title{font-size:28px}
.section{padding:48px 0}
.footer-inner{grid-template-columns:1fr;gap:32px}
.footer-bottom{flex-direction:column;gap:12px;text-align:center}
}