:root{--bg:#fff;--fg:#1b1b1b;--muted:#666;--card:#f6f6f6;--br:18px;--pad:16px;--max:980px;}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.55}
a{color:inherit}
.vk-wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.vk-header{position:sticky;top:0;background:#fff;border-bottom:1px solid #eee;z-index:10}
.vk-header .vk-wrap{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:12px 16px}
.vk-logo{font-weight:800;text-decoration:none}
.vk-nav{display:flex;gap:12px;flex-wrap:wrap}
.vk-nav a{text-decoration:none;color:var(--muted)}
.vk-cta{display:flex;gap:10px}
.vk-btn{display:inline-block;background:#111;color:#fff;text-decoration:none;padding:10px 14px;border-radius:999px;border:0;cursor:pointer}
.vk-btn-alt{background:#2a7}
h1{font-size:32px;margin:18px 0 10px}
h2{margin:22px 0 10px}
h3{margin:18px 0 10px}
p{margin:10px 0}
.vk-card{background:var(--card);padding:var(--pad);border-radius:var(--br);margin:14px 0}
.vk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.vk-grid label{display:flex;flex-direction:column;font-size:14px;color:var(--muted)}
.vk-form input,.vk-form textarea{margin-top:6px;padding:10px;border-radius:12px;border:1px solid #ddd;font:inherit;color:var(--fg);background:#fff}
.vk-form button{margin-top:10px}
.vk-hp{position:absolute;left:-9999px}
.vk-faq details{background:var(--card);border-radius:14px;padding:10px 12px;margin:10px 0}
.vk-faq summary{cursor:pointer;font-weight:700}
.vk-related{columns:2;gap:14px}
.vk-related li{break-inside:avoid;margin:6px 0}
.vk-footer{border-top:1px solid #eee;margin-top:28px;padding:24px 0}
.vk-footnote{color:var(--muted);font-size:13px;margin-top:14px}
@media(max-width:900px){.vk-grid{grid-template-columns:repeat(2,1fr)}.vk-related{columns:1}}