:root{--bg:#F5F6F8;--card:#fff;--ink:#0B0F14;--mut:#4B5563;--line:#E5E7EB;--acc:#00B4FF}
html.dark{--bg:#0B0F14;--card:#111821;--ink:#E5E7EB;--mut:#9CA3AF;--line:#1F2937}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit;text-decoration:none}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.logo-dark{display:none}html.dark .logo-dark{display:inline-block}html.dark .logo-light{display:none}
nav{position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:5}
nav .wrap{display:flex;align-items:center;gap:16px;height:64px}nav .sp{flex:1}nav a.l{font-size:14px;color:var(--mut)}
.brand{display:flex;align-items:center;gap:10px}.brand img{height:30px}.brand .w img{height:15px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;font-family:inherit}
.btn.p{background:var(--acc);border-color:var(--acc);color:#04121C}.btn.p:hover{filter:brightness(1.08)}.btn.tg{width:40px;height:40px;padding:0}
h1{font-size:clamp(34px,6vw,56px);line-height:1.08;margin:0 0 16px;letter-spacing:-.02em}h1 em{font-style:normal;color:var(--acc)}
h2{font-size:clamp(26px,4vw,36px);margin:0 0 10px;letter-spacing:-.01em}.mut{color:var(--mut)}
.hero{padding:72px 0 40px;display:grid;gap:36px;grid-template-columns:1.1fr .9fr;align-items:center}
@media(max-width:800px){.hero{grid-template-columns:1fr}nav .hide{display:none}}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px}
.card i.f{color:var(--acc);font-size:20px;margin-bottom:10px;display:block}.card h3{margin:0 0 6px;font-size:17px}
section{padding:48px 0}.price{font-size:32px;font-weight:800}.pop{border:2px solid var(--acc)}
ul.ck{list-style:none;padding:0;margin:14px 0 0;font-size:14px}ul.ck li{padding:3px 0;color:var(--mut)}ul.ck li:before{content:"✓ ";color:var(--acc);font-weight:800}
details{border-bottom:1px solid var(--line);padding:14px 0}summary{cursor:pointer;font-weight:700}
footer{border-top:1px solid var(--line);padding:28px 0;font-size:13px;color:var(--mut)}
.mock{background:#0B0F14;border:1px solid #1F2937;border-radius:20px;padding:22px;color:#E5E7EB;font-size:13px}
.mock .k{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.mock .k div{background:#111821;border:1px solid #1F2937;border-radius:12px;padding:12px}.mock b{display:block;font-size:20px;color:#00B4FF}
.box{max-width:420px;margin:40px auto;padding:28px;background:var(--card);border:1px solid var(--line);border-radius:20px}
.box label{display:block;font-size:12px;font-weight:700;margin:14px 0 6px}.box input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit}
.box input:focus{outline:2px solid var(--acc);outline-offset:0}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:var(--bg);padding:5px;border-radius:14px;margin:18px 0 4px}
.tabs button{padding:9px;border:0;border-radius:10px;background:none;color:var(--mut);font:inherit;font-weight:700;cursor:pointer}.tabs button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 3px #0003}
.msg{margin-top:14px;padding:10px 12px;border-radius:12px;font-size:13px;font-weight:600;display:none}.msg.err{display:block;background:#EF444422;color:#F87171}.msg.ok{display:block;background:#00B4FF22;color:var(--acc)}
.lnk{background:none;border:0;color:var(--mut);font:inherit;font-size:13px;cursor:pointer;text-decoration:underline;padding:0}