:root{--night:#111f26;--ink:#172a2e;--paper:#eaf0ee;--white:#f6f8f6;--mint:#9cc8bc;--line:#bdccca;--muted:#456b63;--font:Manrope,Arial,sans-serif;--mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--night);overscroll-behavior-y:none}
body{margin:0;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font:400 16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
main{flex:1 0 auto}.site-header,.site-footer{flex:none}a{color:inherit;text-decoration:none}button,input{font:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid #4c9e8b;outline-offset:4px}
.wrap{width:min(1200px,calc(100% - 80px));margin-inline:auto}
.skip-link{position:absolute;left:16px;top:-100px;z-index:100;padding:10px 16px;background:var(--mint);color:var(--night)}.skip-link:focus{top:12px}
.site-header{position:relative;z-index:20;background:var(--night);color:var(--white)}
.header-inner{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:36px}
.brand{display:block;flex:none;width:248px}.brand img{width:100%;height:auto}
.site-nav{display:flex;align-items:center;gap:clamp(12px,1.9vw,28px);font-size:13px;white-space:nowrap}.site-nav a{padding:13px 0;color:#d9e5e0;transition:color .2s}.site-nav a:hover,.site-nav a[aria-current]{color:var(--mint)}.site-nav a[aria-current]{box-shadow:inset 0 -2px var(--mint)}
.menu-toggle{display:none;border:0;background:transparent;width:48px;height:48px;padding:12px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px}.menu-toggle span{display:block;height:2px;background:var(--white);width:24px}
.eyebrow{font:500 11px/1.5 var(--mono);letter-spacing:.075em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:700;line-height:1.12;letter-spacing:-.045em}h1{font-size:clamp(44px,6vw,76px)}h2{font-size:clamp(31px,3.3vw,42px)}h3{font-size:23px}p{line-height:1.65}
.text-link{display:inline-flex;gap:12px;align-items:center;min-height:44px;font-size:14px;font-weight:600;color:var(--muted);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:5px}.text-link:hover{text-decoration-color:currentColor;color:var(--ink)}.text-link span{font-size:18px}
.hero{background:var(--night);color:var(--white);overflow:hidden}.hero-inner{padding-top:84px;padding-bottom:34px;position:relative}.hero .eyebrow{color:var(--mint);margin-bottom:33px}.hero h1{max-width:930px;margin-bottom:23px;overflow-wrap:anywhere}.hero h1 span{color:#d8e9e3}.hero-subtitle{font-size:19px;max-width:720px;color:#c5d5d0;margin-bottom:85px}.process-line{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:line}.process-line>div{display:flex;align-items:baseline;gap:17px;position:relative;border-top:1px solid #57746f;padding-top:16px;font-size:14px;min-height:58px}.process-line>div:before{content:'';position:absolute;left:0;top:-4px;width:7px;height:7px;background:var(--mint);border-radius:50%}.process-line small{color:var(--mint);font:11px var(--mono)}
.section-spaced{padding-block:88px}.home-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px}.home-intro h2{margin:14px 0 0}.home-intro p{font-size:19px;max-width:540px}.section-heading{margin-bottom:38px}.section-heading h2{margin:12px 0 0}.section-heading-row{display:flex;justify-content:space-between;align-items:end;gap:30px}
.topic-band{background:#dce7e3;padding-block:77px}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #9bb5ad;border-bottom:1px solid #9bb5ad}.topic-grid a{position:relative;min-height:250px;padding:32px;border-right:1px solid #9bb5ad}.topic-grid a:first-child{padding-left:0}.topic-grid a:last-child{border-right:0}.topic-grid a:hover{background:rgba(255,255,255,.24)}.topic-grid span,.article-meta,.project-num,.cert-card figcaption>span{font:500 11px/1.6 var(--mono);letter-spacing:.05em;color:var(--muted)}.topic-grid h3{font-size:33px;margin:34px 0 14px}.topic-grid p{max-width:270px;margin:0;color:#41625b}.topic-grid b{position:absolute;right:30px;top:27px;color:var(--muted);font-weight:400;font-size:20px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.article-card{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-direction:column;min-height:260px}.article-meta{display:flex;justify-content:space-between;gap:12px}.article-meta time{text-align:right}.article-card h3{margin:27px 0 14px}.article-card h3 a:hover{text-decoration:underline;text-underline-offset:5px}.article-card p{color:var(--muted);margin-bottom:18px}.article-card .text-link{margin-top:auto}
.article-list .article-meta{display:block}.article-list .article-meta time{display:block;text-align:left;margin-top:8px}
.empty-panel{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:42px 0;color:var(--muted)}
.project-band{background:var(--night);color:var(--white)}.project-band-inner{min-height:420px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:50px}.project-band .eyebrow{color:var(--mint)}.project-band h2{margin:14px 0 18px}.project-band p{max-width:520px;color:#c2d2cc}.button-link{display:inline-flex;align-items:center;gap:25px;border:1px solid var(--mint);color:var(--white);padding:13px 21px;margin-top:12px;min-height:48px}.button-link:hover{background:var(--mint);color:var(--night)}.mini-system{display:flex;align-items:center;gap:0;border:1px solid #55746d;padding:45px 24px;position:relative;color:var(--mint);font:12px var(--mono)}.mini-system span{border:1px solid #55746d;padding:18px 12px;background:#1b3238;flex:1;text-align:center}.mini-system i{width:26px;height:1px;background:var(--mint);flex:none}.mini-system:after{content:'';position:absolute;width:10px;height:10px;border-radius:50%;background:var(--mint);right:-5px;top:-5px}
.page-lead{padding-top:75px;padding-bottom:44px;border-bottom:1px solid var(--line)}.page-lead h1{margin:16px 0 18px}.page-lead p{max-width:780px;font-size:19px;color:#3f5c56;margin:0}
.list-section{padding-top:40px;padding-bottom:100px}.search-form{max-width:600px;margin-bottom:55px}.search-form label{display:block;font:500 11px var(--mono);color:var(--muted);margin-bottom:10px;text-transform:uppercase}.search-form>div{display:flex;border-bottom:1px solid #829f97}.search-form input{border:0;outline:0;padding:12px 0;width:100%;background:transparent;color:var(--ink);min-width:0}.search-form input:focus{box-shadow:inset 0 -2px #4c9e8b}.search-form button{border:0;background:transparent;cursor:pointer;color:var(--muted);white-space:nowrap}.search-form button:hover{text-decoration:underline}.article-list{border-bottom:1px solid var(--line)}.article-list .article-card{display:grid;grid-template-columns:190px minmax(0,1fr) 180px;gap:30px;min-height:0;padding:28px 0}.article-list .article-card h3{margin:0}.article-list .article-card p{grid-column:2;grid-row:2;margin:0}.article-list .article-card .text-link{grid-column:3;grid-row:1/3;align-self:center;justify-self:end}
.reading-page{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:70px;padding-top:75px;padding-bottom:110px}.reading-main h1{font-size:clamp(39px,4.2vw,62px);margin:17px 0 22px}.byline{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px}.byline>*+*:before{content:'·';margin-right:16px}.reading-divider{border-top:1px solid var(--line);margin:26px 0 37px}.article-cover{width:100%;aspect-ratio:3/2;margin:0 0 36px;background:var(--night);overflow:hidden}.article-cover img{width:100%;height:100%;object-fit:cover}.article-intro{font-size:21px;line-height:1.55;margin-bottom:40px}.reading-aside{padding-top:10px;color:var(--muted);font:11px var(--mono)}.reading-aside .aside-line{height:1px;background:var(--line);margin:18px 0}.reading-aside p{font-size:12px}.prose{font-size:18px;line-height:1.78;overflow-wrap:anywhere}.prose h2{font-size:31px;margin:52px 0 17px}.prose h3{font-size:23px;margin:37px 0 14px}.prose p{margin-bottom:25px}.prose a{color:#2f7364;text-decoration:underline;text-underline-offset:3px}.prose img{height:auto;margin:32px auto}.prose figure{margin:32px 0}.prose figcaption{font-size:13px;color:var(--muted);text-align:center}.prose blockquote{margin:36px 0;padding:10px 0 10px 25px;border-left:2px solid var(--mint);font-size:22px}.prose ul,.prose ol{padding-left:26px}.prose li{margin:8px 0}.prose table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;font-size:15px}.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px;text-align:left}.article-author{margin-top:64px;padding:30px;border:1px solid var(--line);background:#eef2ef;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:end}.article-author h2,.article-related h2{margin:8px 0 12px;font-size:28px}.article-author p{margin:0;max-width:640px;line-height:1.65;color:var(--muted)}.article-author-links{display:flex;flex-direction:column;align-items:flex-start;gap:12px;white-space:nowrap}.article-related{margin-top:55px}.article-related ol{list-style:none;padding:0;margin:22px 0 0;border-top:1px solid var(--line)}.article-related li{border-bottom:1px solid var(--line)}.article-related a{display:flex;justify-content:space-between;gap:24px;padding:17px 0;color:inherit;text-decoration:none}.article-related a:hover span{color:#2f7364}.article-end{margin-top:45px;border-top:1px solid var(--line);padding-top:20px}
.cert-section{padding-block:38px 105px}.cert-intro{display:flex;align-items:start;justify-content:space-between;gap:32px;margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid var(--line)}.cert-intro p{max-width:600px;margin:0;font-size:18px;color:#3f5c56}.cert-intro span{white-space:nowrap;font:500 11px/1.6 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}.cert-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px 28px}.cert-card{margin:0;display:flex;flex-direction:column;min-width:0}.cert-preview-link{display:block}.cert-image{height:340px;background:#dce6e2;display:flex;align-items:center;justify-content:center;padding:24px;overflow:hidden;transition:background-color .2s,transform .2s}.cert-image img{max-height:100%;width:auto;height:auto;object-fit:contain;box-shadow:0 8px 24px #20332e24}.cert-preview-link:hover .cert-image{background:#cedfd9;transform:translateY(-3px)}.cert-card figcaption{padding-top:18px;display:flex;flex:1;flex-direction:column;align-items:flex-start}.cert-card h2{font-size:19px;line-height:1.35;margin:12px 0 8px;letter-spacing:-.025em}.cert-card p{font-size:13px;color:var(--muted);margin-bottom:8px}.cert-card .text-link{font-size:13px;margin-top:auto;align-items:flex-start}.cert-card .text-link span{flex:none}
.development-section{padding-top:28px;padding-bottom:100px}.project-row{display:grid;grid-template-columns:190px minmax(0,1fr) 270px;gap:28px;border-bottom:1px solid var(--line);padding:34px 0;align-items:start}.project-row:first-child{border-top:1px solid var(--line)}.project-copy h2{font-size:28px;margin:0 0 9px}.project-copy p{color:var(--muted);margin:0 0 10px}.prose.compact{font-size:15px}.prose.compact p{margin-bottom:10px}.project-visual{height:120px;background:#d8e4df;border:1px solid #c9d6d1;padding:13px}.visual-header{display:flex;gap:5px;margin-bottom:13px}.visual-header i{width:6px;height:6px;border-radius:50%;background:#6e9c90}.visual-content{display:flex;gap:8px;height:63px}.visual-content span{flex:1;background:#86aa9f}.project-visual-1{background:#ced9d6}.project-visual-1 .visual-content span{background:#172a2e}.project-visual-2 .visual-content span:nth-child(2){flex:1.7}
.contacts-section{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding-block:70px 120px}.contacts-intro h2{margin:0 0 17px}.contacts-intro p{max-width:440px;color:var(--muted)}.contact-list{border-top:1px solid var(--line)}.contact-list>a{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding:20px 0;font-size:19px}.contact-list>a:hover{color:#287461}.contact-list>p{padding-top:17px;color:var(--muted)}
.topic-text{padding-block:70px 130px}.topic-text-inner{max-width:770px}.topic-text p{font-size:21px;line-height:1.65}
.site-footer{background:var(--night);color:#c7d5d0;padding-block:64px 52px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px}.footer-grid img{width:250px;height:auto}.footer-grid p{font-size:13px;max-width:330px;margin:5px 0;color:#9dbbb2}.footer-grid nav,.footer-meta{display:flex;flex-direction:column;align-items:flex-start;gap:8px;font-size:13px}.footer-grid a:hover{text-decoration:underline;text-underline-offset:4px;color:var(--mint)}.footer-meta{gap:18px;color:#9dbbb2}
@media(max-width:1100px){.site-nav{gap:13px;font-size:12px}.brand{width:220px}.header-inner{gap:18px}.article-list .article-card{grid-template-columns:135px minmax(0,1fr) 145px}.project-row{grid-template-columns:140px minmax(0,1fr) 220px}}
@media(max-width:850px){.wrap{width:min(100% - 44px,1200px)}.header-inner{min-height:74px}.brand{width:216px}.menu-toggle{display:flex}.site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--night);padding:10px 22px 23px;box-shadow:0 14px 22px #111f2640;white-space:normal}.site-nav.is-open{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px}.site-nav a{border-top:1px solid #355149;padding:13px 0;font-size:14px}.site-nav a[aria-current]{box-shadow:none;text-decoration:underline;text-underline-offset:5px}.hero-inner{padding-top:70px}.hero-subtitle{margin-bottom:68px}.home-intro{gap:35px}.article-grid{grid-template-columns:repeat(2,1fr)}.article-grid .article-card:last-child:nth-child(odd){display:none}.project-band-inner{grid-template-columns:1fr;gap:20px;padding-block:72px}.mini-system{max-width:600px}.reading-page{grid-template-columns:1fr;gap:0}.reading-aside{display:none}.cert-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:42px 22px}.cert-image{height:320px}.project-row{grid-template-columns:130px minmax(0,1fr);gap:20px}.project-visual{display:none}.footer-grid{grid-template-columns:1.5fr 1fr;gap:35px}.footer-meta{grid-column:1/-1;flex-direction:row;justify-content:space-between}}
@media(max-width:600px){body{font-size:16px}.wrap{width:calc(100% - 40px)}.header-inner{min-height:70px}.brand{width:195px}.hero-inner{padding-top:60px;padding-bottom:16px}.hero .eyebrow{margin-bottom:25px}.hero h1{font-size:clamp(41px,10.8vw,54px);line-height:1.09;letter-spacing:-.055em;margin-bottom:21px}.hero-subtitle{font-size:16px;margin-bottom:55px}.process-line{grid-template-columns:repeat(2,1fr);gap:8px 18px}.process-line>div{font-size:12px;min-height:52px;gap:7px}.process-line small{font-size:10px}.section-spaced{padding-block:65px}.home-intro{grid-template-columns:1fr;gap:12px}.home-intro p{font-size:17px}.topic-band{padding-block:58px}.topic-grid{grid-template-columns:1fr}.topic-grid a,.topic-grid a:first-child{min-height:0;padding:24px 0 28px;border-right:0;border-bottom:1px solid #9bb5ad}.topic-grid a:last-child{border-bottom:0}.topic-grid h3{margin:15px 0 8px;font-size:26px}.topic-grid b{right:0;top:23px}.section-heading-row{align-items:start}.section-heading-row>.text-link{font-size:12px;white-space:nowrap}.article-grid{grid-template-columns:1fr;gap:25px}.article-grid .article-card:last-child:nth-child(odd){display:flex}.article-card{min-height:0;padding-bottom:12px}.article-card h3{margin:17px 0 10px}.project-band-inner{min-height:0;padding-block:58px}.mini-system{padding:24px 12px;font-size:9px}.mini-system span{padding:13px 5px}.mini-system i{width:11px}.page-lead{padding-top:57px;padding-bottom:32px}.page-lead h1{font-size:clamp(40px,10vw,52px)}.page-lead p{font-size:16px}.list-section{padding-top:29px;padding-bottom:70px}.search-form{margin-bottom:30px}.article-list .article-card{display:flex;gap:0;padding:24px 0}.article-list .article-card h3{margin:17px 0 8px}.article-list .article-card p{margin-bottom:11px}.reading-page{padding-top:57px;padding-bottom:70px}.reading-main h1{font-size:clamp(37px,9.5vw,52px)}.article-intro{font-size:18px}.prose{font-size:17px;line-height:1.7}.prose h2{font-size:27px}.cert-section{padding-block:29px 70px}.cert-intro{display:block;margin-bottom:28px}.cert-intro p{font-size:16px;margin-bottom:9px}.cert-grid{grid-template-columns:1fr;gap:48px}.cert-image{height:min(112vw,430px);padding:22px}.development-section{padding-top:16px;padding-bottom:70px}.project-row{grid-template-columns:1fr;gap:8px;padding:27px 0}.project-copy h2{font-size:27px}.contacts-section{grid-template-columns:1fr;gap:20px;padding-block:54px 85px}.topic-text{padding-block:50px 85px}.topic-text p{font-size:18px}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-meta{grid-column:auto;flex-direction:column;gap:8px}.site-footer{padding-block:48px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}
.article-list .article-card h2{font-size:23px;margin:0}.article-list .article-card h2 a:hover{text-decoration:underline;text-underline-offset:5px}
@media(max-width:600px){.article-list .article-card h2{margin:17px 0 8px}}
@media(max-width:600px){.article-author{grid-template-columns:1fr;padding:24px;gap:20px}.article-author-links{white-space:normal}.article-related a{gap:14px}}

/* Unified interactive language: Night contour / Angle */
*{scrollbar-color:#6d8e85 #dce7e3;scrollbar-width:thin}
*::-webkit-scrollbar{width:11px;height:11px}*::-webkit-scrollbar-track{background:#dce7e3}*::-webkit-scrollbar-thumb{background:#6d8e85;border:3px solid #dce7e3}
button{min-height:44px}.site-nav a{transition:color .2s,transform .1s}.site-nav a:hover,.site-nav a:focus-visible,.site-nav a[aria-current]{color:var(--mint)}.site-nav a:active,.text-link:active,.button-link:active{transform:translateY(1px)}
.menu-toggle{border:1px solid transparent}.menu-toggle:hover{border-color:#55746f}.menu-toggle:active{background:#1b3238}.menu-toggle span{transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.text-link:hover,.text-link:focus-visible{text-decoration-color:currentColor;color:var(--ink)}.topic-grid a:hover,.topic-grid a:focus-visible{background:rgba(255,255,255,.24)}.topic-grid a:active{background:rgba(255,255,255,.4)}.button-link:hover,.button-link:focus-visible{background:var(--mint);color:var(--night)}.button-link:active{background:#b2d5cc}
.search-form>div{transition:border-color .15s,background .15s}.search-form>div:focus-within{border-color:#4c9e8b;background:#e3ece8}.search-form input{appearance:none;padding-inline:8px}.search-form input::-webkit-search-cancel-button{display:none}.search-form button{padding-inline:12px}.search-form button:hover,.search-form button:focus-visible{text-decoration:underline;color:var(--ink)}.search-form button:active{background:#d5e4de}
.article-card h2 a:focus-visible,.article-card h3 a:focus-visible,.cert-preview-link:focus-visible,.contact-list>a:focus-visible,.footer-grid a:focus-visible{color:#287461;text-decoration:underline;text-underline-offset:5px}.cert-preview-link:focus-visible .cert-image{background:#cedfd9;transform:translateY(-3px)}
@media(max-width:850px){.menu-open{overflow:hidden}}
@media(forced-colors:active){.menu-toggle,.button-link,.search-form>div{border:1px solid ButtonText}}

/* Engineering glossary */
.glossary-hero{background:var(--night);color:var(--white);padding-block:74px 58px}.glossary-hero .eyebrow{color:var(--mint)}.glossary-hero h1{max-width:980px;margin:17px 0 20px;font-size:clamp(43px,5.4vw,70px)}.glossary-hero h1 span{color:#d8e9e3}.glossary-hero>div>p{max-width:720px;margin-bottom:38px;color:#c5d5d0;font-size:18px}
.glossary-search{max-width:900px;border-color:#55746d;background:var(--white);padding:13px 13px 13px 20px;color:var(--ink)}.glossary-search label{display:block;margin-bottom:8px;font:500 10px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.glossary-search>div{display:flex;gap:12px;align-items:center}.glossary-search input{min-width:0;flex:1;border:0;outline:0;background:transparent;padding:10px 0;color:var(--ink)}.glossary-search button{border:0;background:var(--mint);color:var(--night);padding:9px 17px;font-weight:700;white-space:nowrap}.glossary-search button span{margin-left:9px}
.glossary-section{padding-block:38px 105px}.glossary-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:48px}.glossary-filters a{display:flex;align-items:center;min-height:40px;padding:8px 13px;border:1px solid var(--line);font-size:12px;color:var(--muted)}.glossary-filters a:hover,.glossary-filters a[aria-current]{border-color:var(--night);background:var(--night);color:var(--white)}
.glossary-types{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);margin-bottom:24px}.glossary-types a{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:58px;padding:12px 17px;border-right:1px solid var(--line);color:var(--muted);font-size:13px}.glossary-types a:last-child{border-right:0}.glossary-types a:hover,.glossary-types a[aria-current]{background:var(--night);color:var(--white)}.glossary-types b{font:500 11px var(--mono);color:#6f968c}.glossary-subhead{display:flex;justify-content:space-between;align-items:end;margin-top:47px;padding-bottom:14px;border-bottom:1px solid var(--line)}.glossary-subhead:first-of-type{margin-top:0}.glossary-subhead h3{font-size:21px;margin:0}.glossary-subhead a{font:500 11px var(--mono);color:var(--muted)}.glossary-subhead a:hover{text-decoration:underline}.gost-code span{font:500 10px/1.5 var(--mono);color:var(--muted)}.g-status.is-draft{color:#8a6336}.steel-grade-page .standard-title h1{overflow-wrap:anywhere}
.glossary-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:27px}.glossary-head h2{margin:9px 0 0}.glossary-head>span{font:500 11px/1.5 var(--mono);color:var(--muted);text-align:right}.gost-list{border-top:1px solid var(--line)}.gost-row{display:grid;grid-template-columns:205px minmax(0,1fr) 125px;gap:30px;padding:30px 0;border-bottom:1px solid var(--line)}.gost-code{display:flex;flex-direction:column;gap:10px}.gost-code small{font:500 10px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.gost-code b{font-size:16px;letter-spacing:-.02em}.gost-copy h2{font-size:22px;line-height:1.25;margin:0 0 10px;letter-spacing:-.025em}.gost-copy h2 a:hover{text-decoration:underline;text-underline-offset:5px}.gost-copy p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}.gost-copy ul,.standard-keywords{display:flex;gap:7px;flex-wrap:wrap;list-style:none;padding:0;margin:16px 0 0}.gost-copy li,.standard-keywords li{padding:4px 8px;background:#dce7e3;color:#456b63;font:500 10px/1.5 var(--mono)}.gost-action{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between}.g-status{font:600 10px/1.5 var(--mono);text-transform:uppercase;color:var(--muted)}.g-status.is-active{color:#287461}.gost-action .text-link{font-size:12px}.glossary-empty{border-block:1px solid var(--line);padding:48px 0}.glossary-empty h2{margin-bottom:10px}.glossary-empty p{color:var(--muted)}
.glossary-route{display:grid;grid-template-columns:285px minmax(0,1fr);gap:50px;margin-top:72px;padding-top:34px;border-top:1px solid var(--line)}.glossary-route h2{font-size:30px;margin:10px 0 0}.glossary-route ol{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;padding:0;margin:0}.glossary-route li{position:relative;display:flex;flex-direction:column;gap:20px;border-top:1px solid #83a59d;padding:15px 12px 0 0;font-size:12px}.glossary-route li:before{content:'';position:absolute;left:0;top:-4px;width:7px;height:7px;border-radius:50%;background:#6f9f92}.glossary-route li b{font:500 10px var(--mono);color:var(--muted)}
.breadcrumbs{display:flex;gap:10px;align-items:center;padding:29px 0;border-bottom:1px solid var(--line);font:500 10px/1.5 var(--mono);color:var(--muted)}.breadcrumbs a:hover{color:var(--ink);text-decoration:underline}.standard-title{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:70px;padding:61px 0 43px;border-bottom:1px solid var(--line)}.standard-title h1{font-size:clamp(42px,5vw,66px);margin:15px 0 17px}.standard-title>div:first-child>p{max-width:760px;margin:0;color:#3f5c56;font-size:20px;line-height:1.5}.standard-passport{padding-left:25px;border-left:1px solid var(--line)}.standard-passport dl{margin:19px 0 0}.standard-passport dl>div{display:flex;justify-content:space-between;gap:18px;padding:9px 0;border-bottom:1px solid var(--line);font-size:12px}.standard-passport dt{color:var(--muted)}.standard-passport dd{margin:0;text-align:right;font-weight:700}.standard-notice{margin:27px 0 0;padding:16px 0;border-bottom:1px solid var(--line);color:#3f5c56;font-size:14px}.standard-layout{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:70px;padding-block:50px}.standard-content>section{display:grid;grid-template-columns:42px minmax(0,1fr);gap:20px;padding:0 0 37px;margin-bottom:37px;border-bottom:1px solid var(--line)}.standard-content>section>span{padding-top:7px;font:500 10px var(--mono);color:#6f968c}.standard-content h2{font-size:29px;margin:0 0 17px}.standard-content p,.standard-content li{font-size:17px;line-height:1.72}.standard-content ul:not(.standard-keywords){padding-left:21px}.standard-content li{margin:7px 0}.standard-lead{font-size:20px!important;color:var(--ink)}.standard-keywords{margin-top:0}.standard-keywords li{font-size:11px}.standard-aside{min-width:0}.source-sheet{background:var(--night);color:var(--white);border-color:#55746d;padding:25px}.source-sheet small,.related-standards>small{font:500 10px/1.5 var(--mono);letter-spacing:.06em;color:var(--mint)}.source-sheet p{margin:17px 0;color:#c5d5d0;font-size:13px;line-height:1.65}.source-sheet a{font-size:13px;font-weight:700;color:var(--mint)}.related-standards{margin-top:35px;border-top:1px solid var(--line);padding-top:22px}.related-standards>a{display:flex;flex-direction:column;gap:5px;padding:15px 0;border-bottom:1px solid var(--line)}.related-standards>a:hover b{text-decoration:underline;text-underline-offset:4px}.related-standards b{font-size:13px}.related-standards span{font-size:11px;line-height:1.5;color:var(--muted)}.standard-disclaimer{margin-bottom:100px;padding:22px 0;border-block:1px solid var(--line);color:var(--muted);font-size:13px}
@media(max-width:1100px){.gost-row{grid-template-columns:165px minmax(0,1fr) 110px;gap:22px}.standard-layout{grid-template-columns:minmax(0,680px) 1fr;gap:45px}}
@media(max-width:850px){.glossary-route{grid-template-columns:1fr}.standard-title{grid-template-columns:1fr;gap:28px}.standard-passport{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.standard-layout{grid-template-columns:1fr}.standard-aside{display:grid;grid-template-columns:1fr 1fr;gap:24px}.related-standards{margin-top:0}}
@media(max-width:600px){.glossary-hero{padding-block:57px 38px}.glossary-hero h1{font-size:40px}.glossary-hero>div>p{font-size:16px}.glossary-search{padding:12px}.glossary-search>div{align-items:stretch}.glossary-search input{font-size:16px;padding:8px}.glossary-search button{padding-inline:13px}.glossary-types{grid-template-columns:1fr}.glossary-types a{min-height:48px;border-right:0;border-bottom:1px solid var(--line)}.glossary-types a:last-child{border-bottom:0}.glossary-filters{margin-bottom:34px}.glossary-head{display:block}.glossary-head>span{display:block;margin-top:12px;text-align:left}.glossary-subhead{margin-top:37px}.gost-row{display:flex;flex-direction:column;gap:15px;padding:25px 0}.gost-action{align-items:flex-start;flex-direction:row}.gost-copy h2{font-size:21px}.glossary-route{margin-top:55px;gap:28px}.glossary-route ol{grid-template-columns:repeat(2,1fr);gap:27px 0}.breadcrumbs{overflow-x:auto;white-space:nowrap}.standard-title{padding-top:42px}.standard-title>div:first-child>p{font-size:17px}.standard-layout{padding-block:35px}.standard-content>section{grid-template-columns:30px minmax(0,1fr);gap:10px}.standard-content h2{font-size:26px}.standard-content p,.standard-content li{font-size:16px}.standard-lead{font-size:18px!important}.standard-aside{display:block}.related-standards{margin-top:32px}.standard-disclaimer{margin-bottom:70px}}
/* SEO: хлебные крошки внутри статьи — без нижней линии, с отступом до заголовка */
.reading-main>.breadcrumbs{padding:0 0 26px;border-bottom:0;flex-wrap:wrap}
@media(max-width:600px){.reading-main>.breadcrumbs{flex-wrap:nowrap}}