/* Layout: инженерный чертёж. Сетка 12 колонок, тонкие размерные линии, данные моноширинным, один сигнальный акцент. */
:root{
  --bg:#EEF1F2;        /* светлая сталь */
  --paper:#F9FAFA;
  --ink:#141B21;       /* графит */
  --muted:#5A6670;
  --line:#C9D1D6;
  --line-strong:#9AA6AE;
  --accent:#C8590F;    /* окалина / сигнальный оранжевый */
  --accent-ink:#FFFFFF;
  --steel:#24465E;     /* синий чертёжный */
  --ok:#2F7A4B;
  --f-display:"Fira Sans Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"Golos Text","Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --wrap:1200px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0F1418;--paper:#161D22;--ink:#E4E9EC;--muted:#94A1AA;--line:#2A343B;--line-strong:#46535C;
  --accent:#F07A2C;--accent-ink:#140A02;--steel:#8DB4D1;--ok:#5FBF83;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0F1418;--paper:#161D22;--ink:#E4E9EC;--muted:#94A1AA;--line:#2A343B;--line-strong:#46535C;
  --accent:#F07A2C;--accent-ink:#140A02;--steel:#8DB4D1;--ok:#5FBF83;color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font:16px/1.55 var(--f-body)}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.08;text-wrap:balance;margin:0;letter-spacing:-.005em}
h1{font-size:clamp(34px,5.4vw,64px)}
h2{font-size:clamp(26px,3.2vw,38px)}
h3{font-size:20px;font-weight:600}
p{margin:0}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.eyebrow{font:500 12px/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.lead{font-size:18px;color:var(--muted);max-width:60ch}

/* header */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;gap:20px;min-height:68px;flex-wrap:nowrap}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;cursor:pointer;background:none;border:0;padding:0}
.logo-mark{width:40px;height:40px;flex:none}
.logo-txt{font:700 19px/1 var(--f-display);letter-spacing:.02em;text-align:left}
.logo-txt small{display:block;font:500 10px/1.3 var(--f-mono);letter-spacing:.1em;color:var(--muted);margin-top:3px}
.menu{display:flex;gap:2px;flex-wrap:wrap}
.menu > a,.menu > button{padding:8px 12px;text-decoration:none;font-weight:500;font-size:15px;background:none;border:0;cursor:pointer}
.menu > a:hover,.menu > button:hover{color:var(--accent)}
.hdr-right{margin-left:auto;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.phone{font:500 15px var(--f-mono);white-space:nowrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);font-weight:600;font-size:15px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.accent{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.accent:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.sm{padding:8px 14px;font-size:14px}
.cart-n{font:500 12px var(--f-mono);background:var(--paper);color:var(--ink);padding:1px 6px;min-width:20px;text-align:center}
.btn.accent .cart-n{background:var(--accent-ink);color:var(--accent)}

/* mega menu */
.mega{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 18px 30px -20px rgba(0,0,0,.35)}
.mega .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px 32px;padding-block:28px}
.mega h4{font:600 16px var(--f-display);margin:0 0 8px}
.mega ul{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:14px;color:var(--muted)}
.mega li a{text-decoration:none;cursor:pointer}
.mega li a:hover{color:var(--accent)}

/* hero */
.hero{border-bottom:1px solid var(--line);background:
  linear-gradient(var(--line) 1px,transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/40px 40px,var(--bg);background-blend-mode:normal}
.hero{background-color:var(--bg)}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding-block:56px 48px}
.hero-txt{display:grid;gap:22px;min-width:0;background:var(--bg);padding:8px 8px 8px 0}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-facts{display:flex;gap:28px;flex-wrap:wrap;padding-top:8px;border-top:1px solid var(--line-strong)}
.hero-facts div{display:grid;gap:2px}
.hero-facts b{font:600 22px var(--f-display)}
.hero-facts span{font-size:13px;color:var(--muted)}
.drawing{background:var(--paper);border:1px solid var(--line-strong);padding:16px;position:relative}
.drawing svg{width:100%;height:auto;display:block}
.drawing figcaption{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--line);margin-top:8px;padding-top:8px;font:12px var(--f-mono);color:var(--muted);flex-wrap:wrap}
.stroke{stroke:var(--ink);fill:none}
.dim{stroke:var(--steel);fill:none}
.dimt{fill:var(--steel);font:11px var(--f-mono)}
.hl{stroke:var(--accent);fill:none}

section.block{padding-block:72px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head > div{display:grid;gap:10px;max-width:640px}

/* catalog */
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong)}
.cat{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);padding:22px;display:grid;gap:12px;grid-template-rows:auto auto 1fr auto;background:var(--paper);cursor:pointer;text-align:left;border-top:0;border-left:0;transition:background .15s}
.cat:hover{background:var(--bg)}
.cat:hover h3{color:var(--accent)}
.cat svg{width:64px;height:48px}
.cat .codes{font:12px/1.6 var(--f-mono);color:var(--muted)}
.cat .more{font-size:14px;font-weight:600;display:flex;justify-content:space-between}

/* selector */
.selector{background:var(--steel);color:#fff}
.selector .eyebrow{color:rgba(255,255,255,.7)}
.sel-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.sel-grid > *{min-width:0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.chip{border:1px solid rgba(255,255,255,.45);background:transparent;color:#fff;padding:8px 14px;font:500 15px var(--f-mono);cursor:pointer}
.chip[aria-pressed="true"]{background:#fff;color:#16324A;border-color:#fff}
.sel-out{background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.25)}
.sel-out table{width:100%;border-collapse:collapse;font:14px var(--f-mono)}
.sel-out td{color:#fff}
.sel-out th,.sel-out td{padding:10px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,.15)}
.sel-out th{font:500 11px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.65)}
.sel-out .foot{padding:12px 14px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center;font-size:14px}
.linkbtn{background:none;border:0;color:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0;font-weight:600}

/* services */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.svc ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line-strong)}
.svc li{display:grid;grid-template-columns:1fr auto;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);align-items:baseline}
.svc li span{font:13px var(--f-mono);color:var(--muted);text-align:right}

/* why */
.why{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:32px}
.why div{display:grid;gap:8px;border-top:2px solid var(--ink);padding-top:16px}
.why p{color:var(--muted);font-size:15px}

/* request form */
.req{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.req-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px}
.req-grid > *{min-width:0}
form.f{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fld{display:grid;gap:6px;min-width:0}
.fld.full{grid-column:1/-1}
.fld label{font:500 12px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.fld input,.fld select,.fld textarea{border:1px solid var(--line-strong);background:var(--bg);padding:11px 12px;width:100%;border-radius:0}
.fld textarea{min-height:96px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.drop{border:1px dashed var(--line-strong);padding:14px;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.drop input{width:auto;border:0;padding:0;background:none}
.consent{font-size:13px;color:var(--muted);display:flex;gap:8px;align-items:start}
.f-foot{grid-column:1/-1;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.done{grid-column:1/-1;border:1px solid var(--ok);color:var(--ok);padding:14px 16px;font-size:15px}
.req-list{list-style:none;margin:0;padding:0;display:grid;gap:6px;font:14px var(--f-mono)}
.req-list li{display:flex;justify-content:space-between;gap:8px;border-bottom:1px solid var(--line);padding-block:6px}
.req-list button{background:none;border:0;color:var(--muted);cursor:pointer}

/* footer */
.ftr{background:var(--ink);color:var(--bg);padding-block:48px 28px;font-size:14px}
.ftr-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px}
.ftr h4{font:600 15px var(--f-display);margin:0 0 10px;color:var(--bg)}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;opacity:.75}
.ftr .req-data{font:12px/1.8 var(--f-mono);opacity:.7}
.ftr .bottom{margin-top:36px;padding-top:16px;border-top:1px solid color-mix(in srgb,var(--bg) 20%,transparent);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;opacity:.6;font-size:12px}

/* product page */
.crumbs{font-size:13px;color:var(--muted);padding-block:20px;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{cursor:pointer;text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.p-top{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.p-top > *{min-width:0}
.p-info{display:grid;gap:18px;align-content:start}
.p-keys{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line-strong)}
.p-keys div{padding:12px 14px;border-right:1px solid var(--line)}
.p-keys div:last-child{border-right:0}
.p-keys b{display:block;font:600 20px var(--f-display)}
.p-keys span{font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line-strong);margin-top:40px;overflow-x:auto}
.tab{background:none;border:0;padding:12px 18px;font-weight:600;cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tab[aria-selected="true"]{border-bottom-color:var(--accent);color:var(--accent)}
.p-body{display:grid;grid-template-columns:1fr 340px;gap:40px;padding-block:32px 72px;align-items:start}
.p-body > *{min-width:0}
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}
.type{border:1px solid var(--line-strong);background:var(--paper);padding:16px;display:grid;gap:8px;align-content:start}
.type b{font:600 18px var(--f-display)}
.type p{font-size:14px;color:var(--muted)}
.filter{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:14px}
.filter .chip{color:var(--ink);border-color:var(--line-strong);font-size:13px;padding:6px 10px}
.filter .chip[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line-strong);background:var(--paper)}
table.spec{width:100%;border-collapse:collapse;font:14px var(--f-mono);min-width:560px}
table.spec th{font:500 11px var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 14px;border-bottom:1px solid var(--line-strong);background:var(--bg)}
table.spec td{padding:10px 14px;border-bottom:1px solid var(--line)}
table.spec tr:last-child td{border-bottom:0}
table.spec td.num{text-align:right}
table.spec tr.on td{background:color-mix(in srgb,var(--accent) 9%,transparent)}
.add{border:1px solid var(--line-strong);background:transparent;padding:4px 10px;font:500 12px var(--f-mono);cursor:pointer;white-space:nowrap}
.add:hover{border-color:var(--accent);color:var(--accent)}
.add.in{background:var(--ok);border-color:var(--ok);color:#fff}
.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 88px);display:grid;gap:16px}
.side-card{background:var(--paper);border:1px solid var(--line-strong);padding:20px;display:grid;gap:14px}
.side-card form.f{grid-template-columns:1fr}
.todo{font:12px var(--f-mono);color:var(--accent);border:1px dashed var(--accent);padding:2px 6px;display:inline-block}
.docs{display:grid;gap:8px}
.docs div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;flex-wrap:wrap}
.rel{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.rel button{background:var(--paper);border:1px solid var(--line);padding:14px;text-align:left;cursor:pointer;display:grid;gap:4px}
.rel button:hover{border-color:var(--accent)}
.rel span{font:12px var(--f-mono);color:var(--muted)}

@media (max-width:900px){
  .hero-in,.sel-grid,.svc,.req-grid,.p-top,.p-body,.xx-unused{grid-template-columns:1fr}
  .ftr-grid{grid-template-columns:1fr 1fr}
  .types{grid-template-columns:1fr}
  .side{position:static}
  .hdr .wrap{flex-wrap:wrap}
  .menu{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap}
}
@media (max-width:560px){
  form.f{grid-template-columns:1fr}
  .ftr-grid{grid-template-columns:1fr}
  .p-keys{grid-template-columns:1fr}
  .p-keys div{border-right:0;border-bottom:1px solid var(--line)}
  .phone{display:none}
  .typespec div{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- дополнения для многостраничного сайта ---- */
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:8px;z-index:50;background:var(--paper);padding:8px 12px}
.hdr{position:sticky}
.hdr .wrap{position:relative}
.menu > a[aria-current="page"],.menu > button[aria-current="page"]{color:var(--accent)}
.burger{display:none;background:none;border:1px solid var(--line-strong);padding:8px 10px;cursor:pointer;font:600 14px var(--f-body)}
.mega{z-index:30}
.mega li a{display:block;padding:2px 0}
.mega .all{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;font-weight:600}
.mega .all a{text-decoration:none;color:var(--accent)}

.page-head{padding-block:8px 36px;border-bottom:1px solid var(--line);display:grid;gap:14px}
.page-head h1{font-size:clamp(32px,4.4vw,52px)}
.page-body{padding-block:40px 72px;display:grid;gap:48px}

.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong)}
.card{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);padding:22px;display:grid;gap:10px;grid-template-rows:auto auto 1fr auto;background:var(--paper);text-decoration:none;transition:background .15s}
.card:hover{background:var(--bg)}
.card:hover h3{color:var(--accent)}
.card p{color:var(--muted);font-size:15px}
.card .codes{font:12px/1.6 var(--f-mono);color:var(--muted)}
.card .more{font-size:14px;font-weight:600;display:flex;justify-content:space-between}
.cat{text-decoration:none;color:inherit}

.prose{display:grid;gap:14px;max-width:68ch}
.prose p,.prose li{color:var(--ink)}
.prose ul,.prose ol{margin:0;padding-left:20px;display:grid;gap:8px}
.prose h2{font-size:28px;margin-top:12px}
.prose h3{margin-top:8px}

.spec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.search{border:1px solid var(--line-strong);background:var(--paper);padding:9px 12px;min-width:0;width:min(320px,100%);font:14px var(--f-mono)}
.search:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
table.spec tr.grp td{background:var(--bg);font:600 13px var(--f-display);letter-spacing:.04em;text-transform:uppercase;color:var(--steel);padding-top:16px}
table.spec td:first-child{white-space:nowrap}
table.spec.nomen td:first-child{white-space:normal}
table.spec td.note{color:var(--muted);font-size:13px}
.nores{padding:18px 14px;color:var(--muted)}
.hint{font-size:14px;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0;border-top:1px solid var(--line-strong)}
.steps li{list-style:none;padding:20px 20px 20px 0;display:grid;gap:8px;border-bottom:1px solid var(--line)}
.steps ol{margin:0;padding:0;display:contents}
.steps b{font:500 12px var(--f-mono);color:var(--accent);letter-spacing:.1em}
.steps p{color:var(--muted);font-size:15px}

.kv{display:grid;grid-template-columns:200px 1fr;border-top:1px solid var(--line-strong)}
.kv dt,.kv dd{margin:0;padding:12px 0;border-bottom:1px solid var(--line)}
.kv dt{color:var(--muted);font-size:14px}
.kv dd{font-family:var(--f-mono);font-size:15px;min-width:0;overflow-wrap:anywhere}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.split > *{min-width:0}
.panel{background:var(--paper);border:1px solid var(--line-strong);padding:24px;display:grid;gap:14px;align-content:start}
.tc-list{display:flex;flex-wrap:wrap;gap:8px}
.tc-list span{border:1px solid var(--line-strong);padding:6px 12px;font:500 14px var(--f-mono);background:var(--paper)}
.err{grid-column:1/-1;border:1px solid var(--accent);color:var(--accent);padding:12px 16px;font-size:15px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.drop input[type=file]{max-width:100%}
.consent a{color:inherit}
.p-hdr-link{font-size:14px;color:var(--muted);text-decoration:none}
.p-hdr-link:hover{color:var(--accent)}
.big404{font:700 clamp(80px,16vw,180px)/1 var(--f-mono);color:var(--line-strong)}
.preview-note{background:var(--steel);color:#fff;font-size:13px}
.preview-note .wrap{padding-block:7px}

@media (max-width:900px){
  .split{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
  .kv dt{border-bottom:0;padding-bottom:0}
  .burger{display:inline-block}
  .menu{display:none}
  .hdr.open .menu{display:flex;flex-direction:column;order:3;width:100%;padding-bottom:12px}
  .menu > a,.menu > button{text-align:left;padding:10px 0}
  .mega{position:static;box-shadow:none}
}
.p-body > div > *,#spec,[data-table]{min-width:0}
@media (max-width:900px){
  .hero-in,.sel-grid,.svc,.req-grid,.p-top,.p-body{grid-template-columns:minmax(0,1fr)}
  .hero-cta .btn{white-space:normal}
}

/* Видео с производства (страница «Механообработка на заказ») */
.vids{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:-16px}
.vids figure{margin:0;display:grid;gap:8px}
.vids video{width:100%;aspect-ratio:3/4;object-fit:cover;background:var(--line);border:1px solid var(--line)}
.vids figcaption{font-size:14px;color:var(--muted)}
@media (max-width:720px){.vids{grid-template-columns:repeat(2,minmax(0,1fr))}}
.req-list .nm{flex:1;min-width:0}
.req-list .q{display:flex;align-items:center;gap:6px;color:var(--muted);white-space:nowrap;font-size:13px}
.req-list input{width:68px;font:14px var(--f-mono);padding:3px 6px;border:1px solid var(--line);background:var(--paper);color:var(--ink);text-align:right}
.req-list input:focus{outline:2px solid var(--accent);outline-offset:-1px}
.cards.k4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card .kf{font-size:13px;color:var(--muted)}
.card .kf b{font-size:15px;color:var(--ink)}
@media (max-width:960px){.cards.k4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.cards.k4{grid-template-columns:1fr}}
.drawing.photo{padding:0;overflow:hidden}
.drawing.photo img{width:100%;height:auto;display:block;aspect-ratio:4/3;object-fit:cover}
.drawing.photo figcaption{margin:0;padding:8px 16px}

/* фото в карточках каталога; без фото — значок в рамке того же размера */
.card .ph,.cat .ph{display:block;margin:-22px -22px 6px;aspect-ratio:4/3;overflow:hidden;background:#F2F3EE;border-bottom:1px solid var(--line)}
.card .ph img,.cat .ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}
.card:hover .ph img,.cat:hover .ph img{transform:scale(1.03)}
.card .ph.ic,.cat .ph.ic{display:grid;place-items:center;color:var(--muted)}
.card .ph.ic svg,.cat .ph.ic svg{width:34%;height:auto}
.cards.k4 .card{grid-template-rows:auto auto auto 1fr auto}
.req h1{font-size:clamp(28px,3.4vw,40px)}
/* страница модели: переключатель моделей серии; ссылки на модели в таблице серии */
.models{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.models .eyebrow{width:100%}
.models a{border:1px solid var(--line-strong);padding:6px 12px;font:500 14px var(--f-mono);color:var(--ink);text-decoration:none}
.models a:hover{border-color:var(--ink)}
.models a[aria-current]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
table.spec td a{color:inherit;text-decoration-color:var(--accent);text-underline-offset:3px}
table.spec.kv{min-width:0}
table.spec.kv td:first-child{white-space:normal;width:55%}