.article-page{background:#fff;color:var(--ink)}.article-header{position:sticky;top:0;background:#fff}.article-masthead{min-height:var(--header-height);display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:clamp(20px,2.2vw,42px);padding:12px var(--gutter);border-bottom:1px solid var(--line)}
.article-nav{display:flex;justify-content:flex-end;align-items:center;gap:24px}.article-nav a{display:flex;align-items:center;min-height:44px;color:var(--ink);font-weight:700;text-decoration:none}.article-nav a:hover{color:var(--blue);text-decoration:underline;text-underline-offset:5px}.article-request{text-decoration:none}
.article-main,.blog-main{padding:clamp(34px,5vw,76px) var(--gutter) clamp(64px,8vw,112px)}.article-shell{width:min(1160px,100%);margin:0 auto}.breadcrumbs{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,52px);font-size:14px;color:var(--muted)}.breadcrumbs a{min-height:44px;display:inline-flex;align-items:center;text-underline-offset:4px}
.article-body{width:min(880px,100%);margin:0 auto}.article-body>h1,.blog-intro h1{max-width:18ch;margin:0 0 clamp(28px,4vw,48px);font-size:clamp(34px,5vw,66px);line-height:1.04;letter-spacing:-.035em;text-wrap:balance}.article-body>picture{display:block;margin-bottom:clamp(34px,5vw,62px);border-radius:8px;overflow:hidden;background:var(--stone)}.article-body>picture img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-content{width:min(720px,100%);margin:0 auto;font-size:clamp(16px,1.2vw,18px);line-height:1.75}.article-content h2{max-width:25ch;margin:2.8em 0 .7em;font-size:clamp(24px,3vw,36px);line-height:1.15;letter-spacing:-.025em}.article-content p{margin:0 0 1.35em}.article-content ul,.article-content ol{padding-left:1.35em;margin:0 0 1.7em}.article-content li+li{margin-top:.65em}.article-content dl{display:grid;grid-template-columns:minmax(110px,.34fr) 1fr;gap:0 22px;margin:1.8em 0}.article-content dt,.article-content dd{padding:14px 0;border-top:1px solid var(--line)}.article-content dt{font-weight:800}.article-content dd{margin:0}.article-content a{text-decoration-color:#0b4f9e66;text-underline-offset:4px}.article-content small{color:var(--muted)}
.article-next{display:grid;grid-template-columns:1fr auto;align-items:end;gap:40px;width:min(880px,100%);margin:clamp(54px,8vw,100px) auto 0;padding-top:34px;border-top:1px solid var(--line)}.article-next h2{font-size:clamp(25px,3vw,38px);margin:0 0 22px}.article-next ul{margin:0;padding:0;list-style:none;display:grid;gap:14px}.article-next li a{display:inline-block;min-height:44px;padding:7px 0;font-weight:700;text-underline-offset:4px}.article-next>.button{white-space:nowrap}
.blog-intro{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);align-items:end;gap:clamp(30px,6vw,90px);margin-bottom:clamp(48px,7vw,88px)}.blog-intro h1{margin:0}.blog-intro p{margin:0;max-width:54ch;color:var(--muted);font-size:clamp(17px,1.4vw,21px);line-height:1.6}.blog-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.blog-card{display:grid;grid-template-columns:minmax(160px,.8fr) minmax(0,1.2fr);background:#fff;min-width:0}.blog-card picture{display:block;min-height:270px;background:var(--stone);overflow:hidden}.blog-card img{width:100%;height:100%;object-fit:cover}.blog-card>div{display:flex;flex-direction:column;padding:clamp(24px,3vw,38px)}.blog-card p{margin:0 0 18px;color:var(--blue);font-size:14px;font-weight:800}.blog-card h2{margin:0 0 20px;font-size:clamp(21px,2vw,29px);line-height:1.2;letter-spacing:-.02em}.blog-card h2 a{color:var(--ink);text-decoration:none}.blog-card h2 a:hover{text-decoration:underline;text-underline-offset:5px}.blog-card span{color:var(--muted);line-height:1.6}
@media(max-width:1100px){.article-masthead{grid-template-columns:auto 1fr auto}.article-nav{display:none}.blog-list{grid-template-columns:1fr}}@media(max-width:700px){.article-masthead{grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:8px 16px}.article-masthead .brand-city{display:none}.article-masthead .header-contacts{grid-column:1/-1;grid-row:2;display:grid;grid-template-columns:1fr 1fr;gap:8px;padding-top:8px;border-top:1px solid var(--line)}.article-masthead .header-contacts a{font-size:12px;min-height:38px;padding:6px 0}.article-masthead .header-contacts a:last-child{text-align:right}.article-request{font-size:13px;padding:10px 9px;min-height:44px;white-space:nowrap}.article-main,.blog-main{padding-inline:16px}.article-body>h1,.blog-intro h1{font-size:34px;line-height:1.08}.article-content{font-size:16px;line-height:1.7}.article-content h2{margin-top:2.25em}.article-content dl{grid-template-columns:1fr;gap:0}.article-content dd{padding-top:0;border-top:0}.article-next{grid-template-columns:1fr;align-items:start;gap:28px}.article-next>.button{width:100%;white-space:normal}.blog-intro{grid-template-columns:1fr;align-items:start;margin-bottom:40px}.blog-list{border-inline:0}.blog-card{grid-template-columns:1fr}.blog-card picture{min-height:0;aspect-ratio:16/9}.blog-card>div{padding:24px 0 36px}.blog-card h2{font-size:24px}}@media(max-width:350px){.article-masthead .brand strong{font-size:15px}.article-masthead .brand img{width:32px;height:32px}.article-masthead .header-contacts a{font-size:11px}.article-request{font-size:12px}}

/* Production safety for long Russian engineering terms at 320px. */
.article-body h1{overflow-wrap:anywhere}