/* Витрина «Спектр» — стиль Google */
:root{--blue:#1a73e8;--blue-d:#1557b0;--blue-l:#e8f0fe;--ink:#202124;--ink-2:#3c4043;
--muted:#5f6368;--line:#dadce0;--line-2:#e8eaed;--bg:#f8f9fa;--surface:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:Roboto,-apple-system,sans-serif;color:var(--ink);background:var(--surface);
font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 24px;
border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:500;color:var(--ink)}
.logo:hover{text-decoration:none}
.dot{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:grid;
place-items:center;font-weight:500}
.top nav{display:flex;gap:22px;font-size:15px}
.hero{padding:72px 24px 56px;text-align:center;max-width:820px;margin:0 auto}
.hero h1{font-size:40px;line-height:1.2;font-weight:400;margin:0 0 16px}
.hero p{color:var(--muted);font-size:18px;margin:0 0 28px}
.btn{display:inline-flex;align-items:center;height:48px;padding:0 30px;border-radius:24px;
background:var(--blue);color:#fff;font-weight:500}
.btn:hover{background:var(--blue-d);text-decoration:none}
.block{padding:56px 24px;max-width:1080px;margin:0 auto}
.block.grey{background:var(--bg);max-width:none}
.block.grey>*{max-width:1080px;margin-left:auto;margin-right:auto}
.block h2{font-size:28px;font-weight:400;margin:0 0 28px;text-align:center}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line-2);border-radius:16px;padding:22px}
.card h3{margin:0 0 8px;font-size:17px;font-weight:500}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.price{color:var(--blue);font-weight:500;margin-bottom:8px}
.note{margin-top:24px;color:var(--muted);font-size:14.5px;text-align:center}
.req{background:var(--bg);border-radius:16px;padding:24px;max-width:620px;margin:0 auto}
.req p{margin:6px 0}
.doc{max-width:780px;margin:0 auto;padding:40px 24px 60px}
.doc h1{font-size:30px;font-weight:400;margin:0 0 6px}
.doc h2{font-size:19px;font-weight:500;margin:30px 0 10px}
.doc p{margin:10px 0;color:var(--ink-2);font-size:15.5px}
.upd{color:var(--muted);font-size:14px;margin-bottom:24px!important}
footer{border-top:1px solid var(--line-2);padding:28px 24px;text-align:center;color:var(--muted);font-size:14px}
.fl{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
@media(max-width:640px){.hero h1{font-size:30px}.hero{padding:48px 20px 40px}.block{padding:40px 20px}}