:root{--bg:#0b0e14;--fg:#e6e6e6;--muted:#b8b8b8;--primary:#3aa3ff;--accent:#ff8c3a;--card:#141824}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{color:#5ab6ff}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{position:sticky;top:0;background:#0e1118;border-bottom:1px solid #1c2230;z-index:10}
.site-header .logo{font-weight:700;font-size:20px;display:inline-block;padding:8px 4px;color:var(--fg)}
.logo img{height:auto;max-height:48px;width:auto;display:inline-block;border-radius:4px;object-fit:contain}
.nav{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:flex-end}
.nav a{padding:14px 8px;color:var(--muted)}
.nav a:hover{color:var(--fg)}
.hero{padding:64px 0;background:linear-gradient(180deg,#0e1118 0,#121622 100%)}
.hero h1{font-size:36px;margin:0 0 12px}
.hero p{max-width:720px;color:var(--muted)}
.cta{display:inline-block;margin-top:20px;background:var(--accent);color:#1a1a1a;padding:12px 18px;border-radius:8px;font-weight:700}
.cta:hover{filter:brightness(1.08)}
.features{padding:40px 0}
.features h2{margin-bottom:12px}
.grid{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:0;padding:0}
.grid li{background:var(--card);border:1px solid #1f2432;border-radius:12px;padding:16px}
.grid h3{margin:0 0 8px;font-size:18px}
.seo{padding:24px 0}
.slider{padding:12px 0}
.slides img{width:100%;height:auto;object-fit:contain;border-radius:12px;border:1px solid #1f2432;background:#0e1118}
.site-footer{padding:24px 0;border-top:1px solid #1c2230;background:#0e1118;color:var(--muted)}
.back-home{display:inline-block;margin-top:12px}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid{grid-template-columns:1fr}.hero h1{font-size:28px}}