:root{--bg:#f4f6fa;--card:#fff;--ink:#16202e;--ink2:#4a5568;--mute:#6b7685;--line:#e3e8ef;--acc:#0b63ce;--acc2:#e8f1fd;--warn:#fff6e5;--warnb:#f0b44c;--tip:#eaf8ef;--tipb:#36a564;--r:14px;--sh:0 1px 2px rgba(16,24,40,.05),0 4px 14px rgba(16,24,40,.06)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-wrap:break-word}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
/* шапка */
.site-head{background:#fff;border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:24px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none!important}
.logo-mark{flex:none;display:block}
.brand-t{font-size:21px;font-weight:700;letter-spacing:-.2px;line-height:1.1}.brand-t b{color:var(--acc)}
.brand-t small{display:block;font-size:12.5px;font-weight:400;color:var(--mute);letter-spacing:0;margin-top:2px}
.menu{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.menu a{padding:8px 12px;border-radius:9px;color:var(--ink2);font-size:15.5px;font-weight:500;white-space:nowrap}
.menu a:hover,.menu a.on{background:var(--acc2);color:var(--acc);text-decoration:none}
/* крошки */
.crumbs{font-size:14px;color:var(--mute);margin:18px 0 10px;line-height:1.5}
.crumbs a{color:var(--mute)}.crumbs i{font-style:normal;margin:0 4px;color:#a0aab8}
.crumbs span{color:var(--ink2)}
/* статья */
.post{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);padding:32px 40px 36px;margin:0 auto 28px;max-width:860px}
.post h1{font-size:34px;line-height:1.22;margin:0 0 10px;letter-spacing:-.3px}
.meta{color:var(--mute);font-size:14.5px;margin:0 0 20px}
.lead{background:var(--acc2);border-left:4px solid var(--acc);border-radius:10px;padding:14px 18px;margin:0 0 22px}
.lead-h{font-weight:700;color:var(--acc);margin:0 0 4px;font-size:14px;text-transform:uppercase;letter-spacing:.5px}
.lead p{margin:6px 0}
.toc{border:1px solid var(--line);border-radius:10px;padding:12px 18px;margin:0 0 24px;background:#fafbfd}
.toc summary{font-weight:700;cursor:pointer}
.toc ol{margin:10px 0 2px;padding-left:22px}.toc li{margin:3px 0;font-size:15.5px}
.post-body h2,.faq h2{font-size:26px;line-height:1.3;margin:34px 0 12px;letter-spacing:-.2px}
.post-body h3{font-size:20.5px;line-height:1.35;margin:26px 0 10px}
.post-body p{margin:0 0 14px}
.post-body ul,.post-body ol{padding-left:24px;margin:0 0 16px}.post-body li{margin:5px 0}
.post-body ol.steps{list-style:none;padding-left:0;counter-reset:st}
.post-body ol.steps>li{counter-increment:st;position:relative;padding:2px 0 2px 44px;margin:10px 0}
.post-body ol.steps>li:before{content:counter(st);position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:50%;background:var(--acc);color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center}
.note,.tip{border-radius:10px;padding:12px 16px 12px 16px;margin:0 0 16px!important;border-left:4px solid}
.note{background:var(--warn);border-color:var(--warnb)}.tip{background:var(--tip);border-color:var(--tipb)}
kbd{display:inline-block;padding:1px 7px;border:1px solid #c7ced8;border-bottom-width:3px;border-radius:6px;background:#f8fafc;font:600 14px/1.5 "Segoe UI",Arial,sans-serif;color:var(--ink);white-space:nowrap}
code{background:#f1f4f8;border:1px solid var(--line);border-radius:5px;padding:1px 6px;font:14.5px/1.5 Consolas,"SFMono-Regular",Menlo,monospace;overflow-wrap:anywhere}
.post-body figure{margin:22px auto;text-align:center;max-width:100%}
.post-body figure img,.post-body img{display:block;margin:0 auto;width:auto;max-width:min(100%,600px);height:auto;border-radius:10px}
.post-body figcaption{font-size:14.5px;color:var(--mute);margin-top:8px;line-height:1.45}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 18px;border:1px solid var(--line);border-radius:10px}
.table-wrap table{border-collapse:collapse;width:100%;font-size:15.5px;min-width:480px}
.table-wrap th,.table-wrap td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table-wrap th{background:#f5f8fc;font-weight:600}
.table-wrap tr:last-child td{border-bottom:0}
.video{position:relative;padding-top:56.25%;margin:20px 0;border-radius:10px;overflow:hidden;background:#000}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.faq details{border:1px solid var(--line);border-radius:10px;margin:0 0 10px;background:#fff}
.faq summary{cursor:pointer;padding:12px 16px;font-weight:600;list-style-position:outside}
.faq details>div{padding:0 16px 6px}
/* списки и карточки */
.list-head,.hero{margin:6px 0 22px}
.list-head h1{font-size:32px;margin:0 0 8px}
.intro{color:var(--ink2);max-width:820px;margin:0}
.hero{background:linear-gradient(135deg,#0b63ce 0%,#3a8cf0 60%,#61a6f7 100%);color:#fff;border-radius:18px;padding:34px 36px;margin-top:22px}
.hero h1{font-size:34px;line-height:1.2;margin:0 0 10px}
.hero p{margin:0 0 18px;max-width:720px;font-size:17.5px;opacity:.95}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.35);padding:7px 14px;border-radius:20px;font-size:15px;font-weight:500}
.chip:hover{background:#fff;color:var(--acc);text-decoration:none}
.home-sec{margin:0 0 30px}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 12px}
.sec-h h2{font-size:25px;margin:0}.sec-h a{font-size:15px;white-space:nowrap}
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{display:flex;flex-direction:column;background:var(--card);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;color:var(--ink);text-decoration:none!important;transition:transform .15s,box-shadow .15s;min-width:0}
.card:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(16,24,40,.06),0 10px 24px rgba(16,24,40,.10)}
.thumb{display:block;aspect-ratio:16/9;background:#eef3fa;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb img[src^="/img/a/"]{object-fit:contain;padding:6px;background:linear-gradient(135deg,#eef3ff,#f7f9fc)}
.thumb-ph{display:flex;align-items:center;justify-content:center}.thumb-ph svg{width:44px;height:44px;opacity:.5}
.card-b{display:flex;flex-direction:column;gap:6px;padding:14px 16px 16px}
.card-c{font-size:12.5px;color:var(--acc);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.card-t{font-weight:650;font-size:17px;line-height:1.35}
.card-s .card-t{font-size:15.5px}
.card-d{font-size:14.5px;color:var(--ink2);line-height:1.5}
.related{max-width:860px;margin:0 auto 30px}
.rel-h{font-size:22px;margin:0 0 12px}
.related .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
.pager{display:flex;flex-wrap:wrap;gap:6px;margin:22px 0}
.pager a{min-width:40px;text-align:center;padding:8px 12px;border-radius:9px;background:#fff;box-shadow:var(--sh)}
.pager a.on{background:var(--acc);color:#fff}
.cols{columns:2;column-gap:28px}.cols li{break-inside:avoid}
.err{text-align:center;padding:30px 0}.err .grid{text-align:left;margin:20px 0}
.btn{display:inline-block;background:var(--acc);color:#fff;padding:11px 22px;border-radius:10px;font-weight:600}
/* подвал */
.site-foot{background:#0f1a2b;color:#c5cfdd;margin-top:40px;padding:34px 0 18px;font-size:15px}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.site-foot a{color:#dbe4f0}.site-foot ul{list-style:none;padding:0;margin:0}.site-foot li{margin:5px 0}
.brand-foot .brand-t{color:#fff}.brand-foot .brand-t b{color:#7db5ff}
.foot-h{color:#fff;font-weight:600;margin:4px 0 8px}
.copy{border-top:1px solid #23324a;margin-top:22px;padding-top:14px;font-size:13.5px;color:#8b99ad}
/* адаптив */
@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.foot-in{grid-template-columns:1fr 1fr}}
@media (max-width:860px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.post{padding:26px 26px 30px}}
@media (max-width:640px){
body{font-size:16.5px}
.head-in{gap:6px;padding:10px 0 0;min-height:0}
.head-in{flex-direction:column;align-items:stretch}
.menu{margin:0;padding:0 0 10px;flex-wrap:nowrap;overflow-x:auto;width:100%;max-width:100%;scrollbar-width:none}
.menu::-webkit-scrollbar{display:none}
.menu a{background:#f3f6fa;font-size:14.5px;padding:7px 12px}
.grid-3,.grid-4,.related .grid-4{grid-template-columns:minmax(0,1fr)}
.card-s{flex-direction:row}.card-s .thumb{width:112px;flex:none;aspect-ratio:auto;min-height:84px}.card-s .card-b{padding:10px 12px}
.post{padding:20px 16px 24px;border-radius:12px;margin-left:-4px;margin-right:-4px}
.post h1,.hero h1{font-size:26px}.list-head h1{font-size:26px}
.post-body h2,.faq h2{font-size:22px;margin-top:28px}.post-body h3{font-size:19px}
.hero{padding:24px 20px;border-radius:14px}
.foot-in{grid-template-columns:1fr}
.cols{columns:1}
}