:root{--bg:#0a0f1f;--panel:#131d37;--line:#253860;--text:#eef3ff;--muted:#a9b5d8;--a:#5de7c5;--b:#7f8dff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 10% -20%,#25457f,transparent 38%),radial-gradient(circle at 95% 0,#1b4c4d,transparent 45%),var(--bg);color:var(--text);font-family:ui-sans-serif,-apple-system,"PingFang SC",sans-serif}
.nav{position:sticky;top:0;z-index:10;background:rgba(10,15,31,.8);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:12px 20px}.logo{font-weight:800}.nav nav{display:flex;gap:16px}.nav a{color:#d7e0fb;text-decoration:none;font-size:14px}
.hero{max-width:1100px;margin:0 auto;padding:56px 20px 32px;display:grid;grid-template-columns:1.4fr .8fr;gap:18px}.badge{display:inline-block;color:#0f2b20;background:var(--a);padding:4px 8px;border-radius:999px;font-size:11px;font-weight:700}.hero h1{font-size:clamp(32px,5.8vw,56px);margin:10px 0}.lead{color:var(--muted);line-height:1.6}.hero-cta{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}.btn{padding:10px 15px;border-radius:10px;text-decoration:none;font-weight:700}.primary{background:var(--a);color:#06251a}.ghost{border:1px solid var(--line);color:var(--text)}
.hero-card{background:linear-gradient(145deg,#121d38,#192650);border:1px solid var(--line);border-radius:16px;padding:16px}
.section{max-width:1100px;margin:0 auto;padding:20px}.section h2{margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}.card p{color:var(--muted);font-size:13px;line-height:1.5}
.dark{background:rgba(15,25,48,.45);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.dark ul{margin:0;padding-left:20px}.dark li{margin:8px 0;color:#dce5ff}.disclaimer{font-size:12px;color:#94a3ce;margin-top:10px}
.perf-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.metric{background:#121a30;border:1px solid var(--line);border-radius:12px;padding:12px}.metric b{display:block;font-size:22px}.up{color:#71f5bf}.down{color:#ff8fa9}
.faq-item{background:#10192e;border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:8px}.faq-item p{color:var(--muted)}
.contact .form{display:grid;grid-template-columns:1fr 1fr auto;gap:8px}.contact input{background:#0d1529;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px}.contact button{background:var(--b);color:white;border:none;border-radius:10px;padding:10px 14px;cursor:pointer}.msg{color:#bfffe8;font-size:13px;margin-top:8px}
footer{text-align:center;color:#9fb0d9;padding:22px 0 28px;border-top:1px solid var(--line);margin-top:14px}
@media (max-width:840px){.hero{grid-template-columns:1fr}.contact .form{grid-template-columns:1fr}}