/* ============================================================
   SENTRON 3LD 中国资料站
   视觉：petrol / teal / 白 / 技术网格 / 方角工业感
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,dl,dd,dt,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.2;text-wrap:balance;font-weight:650;letter-spacing:-.02em}
p{text-wrap:pretty}
::selection{background:var(--teal-100);color:var(--petrol-900)}
:focus-visible{outline:3px solid var(--teal-500);outline-offset:3px}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding-left:32px;padding-right:32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--petrol-900);color:var(--white);padding:10px 16px;border-radius:var(--radius)}
.skip-link:focus{top:12px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.no-img{display:grid;place-items:center;width:100%;height:100%;min-height:140px;color:var(--teal-300);font-family:var(--font-mono);font-size:36px;background:var(--paper-2)}
.no-img--lg{min-height:420px}

/* ── topbar ─────────────────────────────────────────────── */
.topbar{background:var(--petrol-950);color:var(--teal-100);font-size:12px;letter-spacing:.02em}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:20px}
.topbar__tag{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dot{width:5px;height:5px;background:var(--teal-400);display:inline-block;border-radius:50%;flex:none}
.topbar__links{display:flex;align-items:center;gap:22px;flex:none}
.topbar__links a{display:flex;align-items:center;gap:6px;color:var(--teal-100)}
.topbar__links a:hover{color:var(--white)}
.topbar svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ── header ─────────────────────────────────────────────── */
.site-header{position:sticky;top:0;z-index:80;background:color-mix(in srgb,var(--white) 94%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;gap:28px;min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand__mark{width:44px;height:44px;background:var(--petrol-900);color:var(--white);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1;position:relative;border-radius:var(--radius)}
.brand__mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:12px;height:12px;background:var(--teal-500)}
.brand__mark span:first-child{font-family:var(--font-mono);font-size:10px;color:var(--teal-300);margin-bottom:2px}
.brand__mark span:last-child{font-family:var(--font-mono);font-size:17px;font-weight:700;letter-spacing:-.04em}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text strong{font-family:var(--font-mono);font-size:18px;letter-spacing:.08em;color:var(--petrol-900)}
.brand__text small{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.06em}
.nav{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav__link{position:relative;padding:10px 13px;font-size:15px;color:var(--ink-2);border-radius:var(--radius)}
.nav__link:hover{color:var(--petrol-800);background:var(--teal-050)}
.nav__link.is-active{color:var(--petrol-800);font-weight:650}
.nav__link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;background:var(--teal-500)}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.header-search{display:flex;align-items:center;border:1px solid var(--line);background:var(--paper);height:40px;width:220px;border-radius:var(--radius);overflow:hidden}
.header-search input{width:100%;border:0;background:transparent;padding:0 10px;font-size:13px;min-width:0}
.header-search input:focus{outline:none;background:var(--white)}
.header-search button{width:38px;height:38px;border:0;background:transparent;display:grid;place-items:center;color:var(--petrol-700)}
.header-search button:hover{background:var(--teal-100)}
.header-search svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.header__cta{padding:10px 16px;white-space:nowrap}
.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:10px}
.menu-btn span{display:block;height:1.5px;background:var(--petrol-900);margin:4px 0;transition:.2s var(--ease)}
.mobile-search{display:none;border-top:1px solid var(--line);padding:10px 20px 14px;background:var(--white)}
.mobile-search form{display:flex;gap:8px}
.mobile-search input{flex:1;border:1px solid var(--line);background:var(--paper);padding:9px 10px;font-size:14px;min-width:0}
.mobile-search .btn{padding:9px 14px}

/* ── buttons / links ────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:42px;padding:10px 18px;border:1px solid transparent;border-radius:var(--radius);font-size:14px;font-weight:650;letter-spacing:.01em;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);white-space:nowrap}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn:active{transform:translateY(1px)}
.btn--petrol{background:var(--petrol-800);color:var(--white)}
.btn--petrol:hover{background:var(--petrol-700)}
.btn--white{background:var(--white);color:var(--petrol-900)}
.btn--white:hover{background:var(--teal-100)}
.btn--line{background:transparent;color:var(--petrol-800);border-color:var(--line-strong)}
.btn--line:hover{border-color:var(--petrol-700);background:var(--teal-050)}
.btn--ghost-light{background:transparent;color:var(--white);border-color:color-mix(in srgb,var(--white) 45%,transparent)}
.btn--ghost-light:hover{background:color-mix(in srgb,var(--white) 12%,transparent)}
.btn--lg{min-height:50px;padding:13px 22px;font-size:15px}
.btn--full{width:100%}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:650;color:var(--petrol-700);border-bottom:1px solid var(--teal-300);padding-bottom:3px}
.text-link:hover{color:var(--petrol-900);border-color:var(--petrol-700)}
.text-link svg,.arrow-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease)}
.text-link:hover svg,.arrow-link:hover svg{transform:translateX(3px)}
.arrow-link{display:inline-flex;align-items:center;gap:7px;color:var(--petrol-700);font-size:13px;font-weight:650}
.arrow-link:hover{color:var(--petrol-900)}
.text-link--light{color:var(--teal-100);border-color:color-mix(in srgb,var(--teal-100) 45%,transparent)}
.text-link--light:hover{color:var(--white);border-color:var(--white)}
.text-button{border:0;background:transparent;color:var(--petrol-700);text-decoration:underline;padding:0}

/* ── eyebrow / section heads ────────────────────────────── */
.eyebrow{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--petrol-700);margin-bottom:16px}
.eyebrow__line{width:30px;height:1px;background:var(--teal-500);display:inline-block}
.eyebrow--light{color:var(--teal-300)}
.section{padding:88px 0}
.section--tight{padding:48px 0 72px}
.section--paper{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:160px minmax(0,1fr) auto;gap:36px;align-items:end;margin-bottom:36px}
.section-head--stack{grid-template-columns:160px minmax(0,1fr)}
.section-head__main h2{font-size:clamp(28px,3.2vw,40px);color:var(--ink);max-width:760px}
.section-head__main p{color:var(--muted);font-size:15px;max-width:700px;margin-top:12px}
.section-index{display:flex;flex-direction:column;gap:6px;padding-top:8px;border-top:1px solid var(--line-strong)}
.section-index span{font-family:var(--font-mono);font-size:12px;color:var(--petrol-700);letter-spacing:.1em}
.section-index small{font-family:var(--font-mono);font-size:10px;color:var(--muted);letter-spacing:.12em}
.section-head--dark .section-index{border-color:color-mix(in srgb,var(--white) 30%,transparent)}
.section-head--dark .section-index span,.section-head--dark .section-head__main h2{color:var(--white)}
.section-head--dark .section-index small,.section-head--dark .section-head__main p{color:var(--teal-300)}

/* ── hero ───────────────────────────────────────────────── */
.hero{position:relative;background:var(--white);border-bottom:1px solid var(--line);padding:64px 0 0;overflow:hidden}
.hero__grid-bg{position:absolute;inset:0;background-image:linear-gradient(to right,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px),linear-gradient(to bottom,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to right,transparent,black 45%,black 85%,transparent);pointer-events:none}
.hero__inner{position:relative;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:52px;align-items:center;padding-bottom:62px}
.hero h1{font-size:clamp(42px,5.2vw,68px);line-height:1.07;letter-spacing:-.035em;color:var(--petrol-950);max-width:720px}
.hero h1 em{font-style:normal;color:var(--petrol-700);position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:5px;height:7px;background:var(--teal-100);z-index:-1}
.hero__lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:630px;margin-top:24px}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero__stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:42px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hero__stats div{padding:18px 18px 18px 0;border-right:1px solid var(--line)}
.hero__stats div:last-child{border-right:0}
.hero__stats dt{font-family:var(--font-mono);font-size:clamp(18px,2vw,24px);color:var(--petrol-800);line-height:1.2;font-weight:650}
.hero__stats dd{font-size:12px;color:var(--muted);margin-top:5px}
.hero__visual{min-width:0}
.hero-stage{position:relative;aspect-ratio:1/1;background-color:var(--white);background-image:linear-gradient(to right,color-mix(in srgb,var(--petrol-800) 7%,transparent) 1px,transparent 1px),linear-gradient(to bottom,color-mix(in srgb,var(--petrol-800) 7%,transparent) 1px,transparent 1px);background-size:42px 42px;border:1px solid var(--line-strong);display:grid;place-items:center;padding:9%;box-shadow:var(--shadow-lg)}
.hero-stage::before,.hero-stage::after{content:"";position:absolute;background:var(--teal-300);opacity:.8}
.hero-stage::before{left:50%;top:0;bottom:0;width:1px}
.hero-stage::after{top:50%;left:0;right:0;height:1px}
.hero-stage img{position:relative;z-index:1;max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.stage-corner{position:absolute;width:22px;height:22px;border-color:var(--teal-500);border-style:solid;z-index:2}
.stage-corner--tl{left:12px;top:12px;border-width:1.5px 0 0 1.5px}
.stage-corner--tr{right:12px;top:12px;border-width:1.5px 1.5px 0 0}
.stage-corner--bl{left:12px;bottom:12px;border-width:0 0 1.5px 1.5px}
.stage-corner--br{right:12px;bottom:12px;border-width:0 1.5px 1.5px 0}
.stage-label{position:absolute;z-index:3;background:var(--white);border:1px solid var(--line);padding:6px 9px;display:flex;flex-direction:column;line-height:1.2;box-shadow:var(--shadow-sm)}
.stage-label span{font-family:var(--font-mono);font-size:12px;font-weight:650;color:var(--petrol-800)}
.stage-label small{font-family:var(--font-mono);font-size:8px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.stage-label--top{left:18px;top:18px}
.stage-label--right{right:18px;top:38%}
.stage-label--bottom{left:18px;bottom:18px}
.stage-model{position:absolute;right:18px;bottom:18px;z-index:3;display:flex;flex-direction:column;align-items:flex-end;gap:3px;background:var(--paper);border:1px solid var(--line);padding:7px 10px}
.stage-model span:first-child{font-size:11px;color:var(--petrol-800);font-weight:650}
.stage-model span:last-child{font-size:9px;color:var(--muted)}
.hero__caption{font-size:12px;color:var(--muted);max-width:420px;margin-left:auto;margin-top:12px;line-height:1.7}
.quick-finder{position:relative;z-index:4;display:grid;grid-template-columns:210px repeat(4,minmax(0,1fr)) auto;gap:0;align-items:stretch;background:var(--white);border:1px solid var(--line);border-top:3px solid var(--petrol-800);box-shadow:var(--shadow-sm);margin-top:0}
.quick-finder__label{padding:16px 18px;background:var(--petrol-900);color:var(--white);display:flex;flex-direction:column;justify-content:center;gap:4px}
.quick-finder__label span{font-family:var(--font-mono);font-size:9px;letter-spacing:.13em;color:var(--teal-300)}
.quick-finder__label strong{font-size:13px;font-weight:550;line-height:1.4}
.quick-finder label{display:flex;flex-direction:column;gap:3px;padding:10px 14px;border-right:1px solid var(--line);font-size:10px;letter-spacing:.06em;color:var(--muted)}
.quick-finder select{border:0;background:transparent;font-size:14px;font-weight:550;color:var(--ink);padding:2px 20px 2px 0;cursor:pointer;width:100%}
.quick-finder .btn{margin:10px;align-self:center}

/* ── series cards ───────────────────────────────────────── */
.series-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
.series-card{grid-column:span 3;background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column;transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);min-width:0}
.series-card:hover{border-color:var(--petrol-700);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.series-card--wide{grid-column:span 6;display:grid;grid-template-columns:1.15fr .85fr}
.series-card--3ld9{grid-column:span 12;display:grid;grid-template-columns:1fr 320px}
.series-card__body{padding:24px;display:flex;flex-direction:column;min-width:0}
.series-card__top{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);letter-spacing:.04em;margin-bottom:26px}
.series-card__top .mono{color:var(--petrol-700);font-size:13px;font-weight:650}
.series-card h3{font-size:22px;line-height:1.35;max-width:24em}
.series-card p{font-size:13px;color:var(--muted);line-height:1.75;margin-top:10px;max-width:40em}
.series-card__specs{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.series-card__specs span{font-family:var(--font-mono);font-size:11px;color:var(--petrol-800);background:var(--teal-050);border:1px solid var(--teal-100);padding:3px 7px}
.series-card .arrow-link{margin-top:auto;padding-top:22px}
.series-card__media{background:var(--paper);display:grid;place-items:center;padding:24px;min-height:240px;border-left:1px solid var(--line)}
.series-card--3ld3 .series-card__media,.series-card--3ld5 .series-card__media{border-left:0;border-top:1px solid var(--line);min-height:170px;padding:18px}
.series-card__media img{max-height:210px;width:auto;object-fit:contain;mix-blend-mode:multiply}
.series-card--3ld9 .series-card__media img{max-height:160px}

/* ── function tiles ─────────────────────────────────────── */
.function-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.function-tile{position:relative;background:var(--white);padding:26px;display:flex;flex-direction:column;min-height:210px;transition:background .25s var(--ease),color .25s var(--ease)}
.function-tile__num{font-size:10px;color:var(--muted);letter-spacing:.12em}
.function-tile__count{position:absolute;right:24px;top:20px;font-family:var(--font-mono);font-size:30px;font-weight:650;color:var(--teal-300);line-height:1}
.function-tile h3{font-size:21px;margin-top:36px}
.function-tile p{font-size:13px;color:var(--muted);margin-top:8px;max-width:30em}
.function-tile__arrow{margin-top:auto;padding-top:22px;color:var(--petrol-700)}
.function-tile__arrow svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6}
.function-tile:hover{background:var(--petrol-900);color:var(--white)}
.function-tile:hover .function-tile__num,.function-tile:hover p{color:var(--teal-300)}
.function-tile:hover .function-tile__count{color:var(--teal-500)}
.function-tile:hover .function-tile__arrow{color:var(--white)}

/* ── logic / tech panel ─────────────────────────────────── */
.logic-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.88fr);gap:64px;align-items:start}
.logic-steps{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.logic-steps article{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.step-no{font-family:var(--font-mono);font-size:12px;color:var(--petrol-700);width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line-strong);background:var(--white)}
.logic-steps h3{font-size:19px}
.logic-steps p{font-size:14px;color:var(--muted);margin-top:7px;max-width:44em}
.logic-steps .text-link{margin-top:24px;align-self:flex-start}
.tech-panel{background:var(--petrol-900);color:var(--white);padding:26px;border:1px solid var(--petrol-900);position:relative}
.tech-panel::after{content:"";position:absolute;right:0;bottom:0;width:76px;height:76px;background:linear-gradient(135deg,transparent 49%,var(--teal-500) 50%,var(--teal-500) 51%,transparent 52%)}
.tech-panel__head{display:flex;justify-content:space-between;gap:16px;font-size:9px;letter-spacing:.12em;color:var(--teal-300);border-bottom:1px solid color-mix(in srgb,var(--white) 20%,transparent);padding-bottom:12px}
.tech-panel__note{font-size:11px;color:var(--teal-300);line-height:1.65;margin-top:16px;max-width:34em}
.mini-table{width:100%;border-collapse:collapse;margin-top:8px}
.mini-table th,.mini-table td{padding:12px 8px;border-bottom:1px solid color-mix(in srgb,var(--white) 14%,transparent);text-align:left;font-size:12px;vertical-align:top}
.mini-table thead th{font-size:9px;letter-spacing:.1em;color:var(--teal-300);font-weight:550;text-transform:uppercase}
.mini-table tbody th{font-family:var(--font-mono);font-weight:650;font-size:12px;color:var(--white)}
.mini-table td{color:var(--teal-100)}

/* ── product cards ──────────────────────────────────────── */
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.product-card{background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column;min-width:0;transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.product-card:hover{border-color:var(--petrol-700);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.product-card__media{position:relative;display:grid;place-items:center;aspect-ratio:4/3;background:var(--paper);border-bottom:1px solid var(--line);padding:22px}
.product-card__media img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.product-card__series{position:absolute;left:10px;top:10px;font-family:var(--font-mono);font-size:9px;background:var(--white);border:1px solid var(--line);padding:3px 6px;color:var(--petrol-800)}
.product-card__body{padding:16px 16px 14px;display:flex;flex-direction:column;flex:1}
.product-card__meta{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:var(--muted);letter-spacing:.03em;margin-bottom:9px}
.product-card__meta .mono{color:var(--petrol-700);font-size:10px;font-weight:650}
.product-card h3{font-size:16px;line-height:1.4;min-height:2.8em}
.product-card h3 a:hover{color:var(--petrol-700)}
.product-card__spec{font-size:12px;color:var(--muted);margin-top:7px;line-height:1.6}
.product-card__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;color:var(--muted)}
.product-card__foot .arrow-link{font-size:11px}

/* ── applications band ──────────────────────────────────── */
.applications-band{background:var(--petrol-950);color:var(--white);padding:84px 0}
.app-list{border-top:1px solid color-mix(in srgb,var(--white) 18%,transparent)}
.app-row{display:grid;grid-template-columns:56px 1.15fr 2fr 1fr 34px;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid color-mix(in srgb,var(--white) 14%,transparent);transition:background .2s var(--ease),padding .2s var(--ease)}
.app-row:hover{background:color-mix(in srgb,var(--white) 6%,transparent);padding-left:12px;padding-right:12px}
.app-row__no{font-size:10px;color:var(--teal-300)}
.app-row__name{font-size:20px;font-weight:600}
.app-row__desc{font-size:13px;color:var(--teal-100);line-height:1.6}
.app-row__series{font-family:var(--font-mono);font-size:10px;color:var(--teal-300);letter-spacing:.04em}
.app-row__arrow{color:var(--teal-300)}
.app-row__arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6}

/* ── duo / docs / knowledge ─────────────────────────────── */
.duo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:72px}
.duo .section-head__main h2{font-size:30px}
.doc-list{border-top:1px solid var(--line)}
.doc-row{display:grid;grid-template-columns:48px 1fr auto 20px;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.doc-row:hover{background:var(--white)}
.doc-row__title{font-size:14px;font-weight:550;line-height:1.5}
.doc-row__meta{font-family:var(--font-mono);font-size:9px;color:var(--muted);text-align:right}
.doc-row svg{width:16px;height:16px;fill:none;stroke:var(--petrol-700);stroke-width:1.6}
.lang-tag{display:inline-flex;align-items:center;justify-content:center;min-width:38px;padding:3px 7px;font-size:10px;font-weight:650;letter-spacing:.03em;border:1px solid var(--line);background:var(--paper)}
.lang-tag--zh{background:var(--teal-100);border-color:var(--teal-300);color:var(--petrol-800)}
.lang-tag--en{background:var(--petrol-900);border-color:var(--petrol-900);color:var(--white)}
.lang-tag--de{background:var(--amber-100);border-color:var(--amber);color:var(--ink)}
.knowledge-list{border-top:1px solid var(--line)}
.knowledge-row{display:grid;grid-template-columns:34px 1fr 20px;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.knowledge-row:hover{background:var(--white)}
.knowledge-row>span:first-child{font-size:10px;color:var(--petrol-700)}
.knowledge-row strong{display:block;font-size:14px;font-weight:600;line-height:1.5}
.knowledge-row small{display:block;font-size:11px;color:var(--muted);margin-top:3px;line-height:1.55}
.knowledge-row svg{width:16px;height:16px;fill:none;stroke:var(--petrol-700);stroke-width:1.6}

/* ── about strip / cta / footer ─────────────────────────── */
.section--about{background:var(--teal-050);border-top:1px solid var(--teal-100);border-bottom:1px solid var(--teal-100)}
.about-strip{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:64px;align-items:start}
.about-strip h2{font-size:clamp(26px,3vw,38px);color:var(--petrol-950);max-width:18em}
.about-strip__body p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:12px}
.about-strip__body .text-link{margin-top:8px}
.cta-band{background:var(--petrol-800);color:var(--white);padding:56px 0;border-top:1px solid var(--petrol-700)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);max-width:720px;color:var(--white)}
.cta-band p{font-size:14px;color:var(--teal-100);margin-top:10px;max-width:650px}
.cta-band__actions{display:flex;gap:10px;flex:none}
.footer{background:var(--petrol-950);color:var(--paper-2);padding:64px 0 24px;font-size:13px}
.footer__top{display:grid;grid-template-columns:1.5fr .8fr .8fr .9fr 1.1fr;gap:36px;padding-bottom:48px;border-bottom:1px solid color-mix(in srgb,var(--white) 14%,transparent)}
.brand--footer .brand__mark{background:var(--white);color:var(--petrol-950)}
.brand--footer .brand__mark::after{background:var(--teal-500)}
.brand--footer .brand__mark span:first-child{color:var(--petrol-600)}
.brand--footer .brand__text strong{color:var(--white)}
.brand--footer .brand__text small{color:var(--teal-300)}
.footer__brand p{font-size:12px;line-height:1.75;color:var(--teal-100);margin-top:18px;max-width:32em}
.footer__operator{color:var(--white)!important;margin-top:10px!important}
.footer__disclaimer{color:var(--muted)!important;font-size:10.5px!important;line-height:1.7!important;margin-top:16px!important;max-width:36em!important}
.footer__col{display:flex;flex-direction:column;gap:8px;min-width:0}
.footer__col h3{font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:var(--teal-300);margin-bottom:6px;font-weight:550}
.footer__col a,.footer__col span{color:var(--paper-2);font-size:12px;line-height:1.55;display:flex;justify-content:space-between;gap:10px}
.footer__col a:hover{color:var(--teal-300)}
.footer__col a span{font-family:var(--font-mono);font-size:9px;color:var(--muted);flex:none}
.footer__contact a,.footer__contact span{justify-content:flex-start;color:var(--teal-100)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:20px;font-size:10px;color:var(--muted);flex-wrap:wrap}
.footer__legal{display:flex;gap:18px}
.footer__legal a:hover{color:var(--white)}
.footer__source{font-family:var(--font-mono);font-size:9px;text-align:right}

/* ── page hero / breadcrumb ─────────────────────────────── */
.page-hero{position:relative;background:var(--white);border-bottom:1px solid var(--line);padding:52px 0 48px;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(to right,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px),linear-gradient(to bottom,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to right,transparent,black 60%,black);pointer-events:none}
.page-hero>.wrap{position:relative;z-index:1}
.page-hero--compact{padding:32px 0 38px}
.page-hero h1{font-size:clamp(34px,4vw,54px);color:var(--petrol-950);max-width:18em}
.page-hero__lead{font-size:16px;color:var(--ink-2);max-width:720px;margin-top:14px;line-height:1.85}
.page-hero__grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:end;margin-top:18px}
.page-hero__stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.page-hero__stats div{padding:15px 12px 15px 0;border-right:1px solid var(--line)}
.page-hero__stats div:last-child{border-right:0}
.page-hero__stats dt{font-family:var(--font-mono);font-size:22px;color:var(--petrol-800);font-weight:650;line-height:1.2}
.page-hero__stats dd{font-size:10px;color:var(--muted);margin-top:4px}
.page-hero__tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.page-hero__tags span{font-size:10px;font-family:var(--font-mono);background:var(--teal-050);border:1px solid var(--teal-100);color:var(--petrol-800);padding:4px 8px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--petrol-700)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb span:last-child{color:var(--ink-2)}
.breadcrumb .mono{font-size:11px}

/* ── notes / callouts ───────────────────────────────────── */
.note-strip{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--teal-500);padding:14px 18px;font-size:13px;color:var(--muted)}
.note-strip strong{color:var(--ink)}
.callout{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--petrol-700);padding:22px 24px}
.callout--warn{border-left-color:var(--amber);background:var(--amber-100)}
.callout--spaced{margin-top:18px}
.callout strong{display:block;font-size:15px;margin-bottom:6px;color:var(--ink)}
.callout p{font-size:13px;color:var(--ink-2);line-height:1.8;max-width:70em}
.callout .text-link{margin-top:12px}

/* ── filters / tables ───────────────────────────────────── */
.filter-bar{display:grid;grid-template-columns:repeat(5,minmax(0,1fr)) minmax(150px,.8fr) auto;gap:0;background:var(--white);border:1px solid var(--line);border-top:3px solid var(--petrol-800);margin-bottom:14px}
.filter-bar label{display:flex;flex-direction:column;gap:2px;padding:9px 13px;border-right:1px solid var(--line);font-size:9px;letter-spacing:.07em;color:var(--muted)}
.filter-bar select,.filter-bar input{border:0;background:transparent;font-size:13px;font-weight:550;color:var(--ink);padding:3px 18px 3px 0;width:100%;min-width:0}
.filter-bar input[type=search]{padding-right:0}
.filter-bar .btn{margin:9px;align-self:center}
.filter-summary{font-size:11px;color:var(--muted);margin-bottom:14px}
.filter-summary span{font-family:var(--font-mono);color:var(--petrol-800);font-weight:650}
.table-tools{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--white);border:1px solid var(--line);border-bottom:0;padding:10px 14px}
.table-tools__search{display:flex;align-items:center;gap:8px;flex:1;max-width:460px;border:1px solid var(--line);background:var(--paper);padding:0 9px;height:38px}
.table-tools__search svg{width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.7;flex:none}
.table-tools__search input{border:0;background:transparent;width:100%;font-size:13px;min-width:0}
.table-tools__search input:focus{outline:none}
.table-tools__count{font-family:var(--font-mono);font-size:10px;color:var(--muted);white-space:nowrap}
.table-wrap{width:100%;background:var(--white);border:1px solid var(--line);overflow:visible}
.data-table{width:100%;border-collapse:collapse;font-size:12px}
.data-table th{position:sticky;top:var(--header-h);z-index:4;background:var(--paper);text-align:left;padding:10px 11px;font-family:var(--font-mono);font-size:9px;letter-spacing:.07em;font-weight:550;color:var(--muted);border-bottom:1px solid var(--line-strong);white-space:nowrap}
.data-table td{padding:11px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-2)}
.data-table tbody tr:hover{background:var(--teal-050)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:11px}
.model-link{display:block;color:var(--petrol-700);font-size:12px;font-weight:650;line-height:1.4}
.model-link:hover{text-decoration:underline}
.row-name{display:block;font-size:10px;color:var(--muted);margin-top:3px;line-height:1.45}
.series-chip{display:inline-block;font-family:var(--font-mono);font-size:9px;padding:3px 6px;border:1px solid var(--line);white-space:nowrap;font-weight:600}
.series-chip--3ld2{background:var(--petrol-900);color:var(--white);border-color:var(--petrol-900)}
.series-chip--3ld3{background:var(--teal-100);color:var(--petrol-800);border-color:var(--teal-300)}
.series-chip--3ld5{background:var(--amber-100);color:var(--ink);border-color:var(--amber)}
.series-chip--3ld9{background:var(--paper-2);color:var(--ink-2);border-color:var(--line-strong)}
.sub{display:block;font-size:9px;color:var(--muted);margin-top:2px}
.row-action{text-align:right;width:32px}
.row-action a{display:inline-grid;place-items:center;width:26px;height:26px;border:1px solid var(--line);color:var(--petrol-700)}
.row-action a:hover{background:var(--petrol-800);color:var(--white);border-color:var(--petrol-800)}
.row-action svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.8}
.pager{display:flex;justify-content:center;align-items:center;gap:5px;padding:20px 0 0;flex-wrap:wrap}
.pager button{min-width:34px;height:34px;border:1px solid var(--line);background:var(--white);font-family:var(--font-mono);font-size:11px;color:var(--ink-2);padding:0 8px}
.pager button:hover{border-color:var(--petrol-700)}
.pager button.is-active{background:var(--petrol-800);color:var(--white);border-color:var(--petrol-800)}
.pager button:disabled{opacity:.35;cursor:not-allowed}
.pager .pager__info{font-size:10px;color:var(--muted);font-family:var(--font-mono);margin:0 8px}
.table-empty{background:var(--white);border:1px solid var(--line);padding:24px;font-size:13px;color:var(--muted);text-align:center}

/* ── series hero / list / refs ──────────────────────────── */
.page-hero--series{background:var(--white)}
.series-hero{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:52px;align-items:center}
.series-hero h1{font-size:clamp(34px,4vw,54px)}
.series-hero__specs{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:24px;max-width:560px}
.series-hero__specs div{padding:12px 22px 12px 0;margin-right:22px;border-right:1px solid var(--line)}
.series-hero__specs div:last-child{border-right:0}
.series-hero__specs span{display:block;font-size:10px;color:var(--muted)}
.series-hero__specs strong{display:block;font-family:var(--font-mono);font-size:15px;color:var(--petrol-800);margin-top:3px}
.series-hero__media{position:relative;aspect-ratio:4/3;background:var(--paper);border:1px solid var(--line);display:grid;place-items:center;padding:36px}
.series-hero__media img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.series-hero__stamp{position:absolute;right:14px;bottom:12px;font-size:10px;color:var(--muted);letter-spacing:.06em}
.series-hero__fallback{font-family:var(--font-mono);font-size:11px;color:var(--muted);text-align:center;line-height:1.8;max-width:18em}
.series-source{font-size:10px;color:var(--muted);margin-top:16px;line-height:1.7}
.series-list{border-top:1px solid var(--line)}
.series-list__row{display:grid;grid-template-columns:50px minmax(0,1fr) 240px 140px;gap:26px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line)}
.series-list__row.is-reference{background:var(--white);padding-left:16px;padding-right:16px;border:1px solid var(--line);margin-top:16px}
.series-list__no{font-size:11px;color:var(--muted)}
.series-list__top{display:flex;gap:12px;font-size:10px;color:var(--muted);margin-bottom:7px}
.series-list__top .mono{color:var(--petrol-700);font-weight:650;font-size:11px}
.series-list h2{font-size:24px}
.series-list p{font-size:13px;color:var(--muted);margin-top:7px;max-width:48em}
.series-list__specs{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}
.series-list__specs span{font-family:var(--font-mono);font-size:9px;background:var(--teal-050);border:1px solid var(--teal-100);padding:3px 6px;color:var(--petrol-800)}
.series-list__media{background:var(--paper);border:1px solid var(--line);aspect-ratio:4/3;display:grid;place-items:center;padding:12px}
.series-list__media img{max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.series-list__link{font-size:12px;font-weight:650;color:var(--petrol-700);display:flex;align-items:center;gap:6px;justify-content:flex-end}
.series-list__link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8}
.ref-model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:20px}
.ref-model{background:var(--white);padding:18px;display:flex;flex-direction:column;gap:5px}
.ref-model .mono{font-size:14px;color:var(--petrol-800);font-weight:650}
.ref-model span:last-child{font-size:11px;color:var(--muted)}

/* ── product detail ─────────────────────────────────────── */
.product-hero{background:var(--white);border-bottom:1px solid var(--line);padding:28px 0 44px}
.product-hero__grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:56px;align-items:center;margin-top:10px}
.product-hero__media{position:relative;background:var(--paper);border:1px solid var(--line);aspect-ratio:1/1;display:grid;place-items:center;padding:8%}
.product-hero__media img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.product-hero__series{position:absolute;left:13px;top:13px;font-size:10px;background:var(--white);border:1px solid var(--line);padding:4px 8px;color:var(--petrol-800)}
.product-hero__caption{position:absolute;left:13px;bottom:11px;font-size:9px;color:var(--muted)}
.product-hero__badges{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.badge{font-size:10px;border:1px solid var(--line);padding:4px 8px;color:var(--ink-2);background:var(--paper)}
.badge--ok{background:var(--teal-050);border-color:var(--teal-300);color:var(--petrol-800)}
.product-hero__model{font-size:12px;color:var(--petrol-700);letter-spacing:.06em;font-weight:650}
.product-hero h1{font-size:clamp(30px,3.4vw,46px);margin-top:6px;color:var(--petrol-950)}
.product-hero__lead{font-size:15px;color:var(--ink-2);line-height:1.8;margin-top:14px;max-width:44em}
.highlight-list{display:flex;flex-wrap:wrap;gap:7px 16px;margin-top:18px}
.highlight-list li{display:flex;align-items:flex-start;gap:7px;font-size:12px;color:var(--ink-2)}
.highlight-list svg{width:13px;height:13px;fill:none;stroke:var(--teal-500);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:4px}
.product-hero__actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}
.copy-btn{display:inline-flex;align-items:center;gap:6px;border:0;background:transparent;color:var(--muted);font-size:11px;padding:8px 4px}
.copy-btn:hover{color:var(--petrol-700)}
.copy-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.6}
.quick-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:26px}
.quick-facts div{padding:12px 14px 12px 0;border-right:1px solid var(--line)}
.quick-facts div:last-child{border-right:0}
.quick-facts dt{font-size:9px;color:var(--muted);letter-spacing:.05em}
.quick-facts dd{font-family:var(--font-mono);font-size:12px;color:var(--ink);margin-top:4px;line-height:1.4}
.spec-strip{background:var(--petrol-900);color:var(--white)}
.spec-strip__inner{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0}
.spec-strip__inner>div{padding:14px 18px;border-right:1px solid color-mix(in srgb,var(--white) 16%,transparent)}
.spec-strip__inner>div:first-child{padding-left:0}
.spec-strip__inner>div:last-child{border-right:0}
.spec-strip span{display:block;font-size:9px;color:var(--teal-300);letter-spacing:.04em}
.spec-strip strong{display:block;font-family:var(--font-mono);font-size:12px;color:var(--white);margin-top:4px;line-height:1.45;font-weight:550}
.product-layout{display:grid;grid-template-columns:minmax(0,1fr) 356px;gap:56px;align-items:start}
.product-content{min-width:0}
.content-block{padding:0 0 40px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.content-block:last-child{border-bottom:0;margin-bottom:0}
.content-block__head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.content-block__head>span{font-size:9px;color:var(--muted);letter-spacing:.08em;white-space:nowrap}
.content-block h2{font-size:26px}
.content-block .lede{font-size:16px;line-height:1.9;color:var(--ink-2)}
.content-block>p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-top:12px;max-width:54em}
.spec-table{border-top:1px solid var(--line)}
.spec-table__row{display:grid;grid-template-columns:minmax(160px,.8fr) minmax(0,1.2fr);gap:20px;padding:11px 0;border-bottom:1px solid var(--line);font-size:12px}
.spec-table__row span{color:var(--muted)}
.spec-table__row strong{font-weight:550;color:var(--ink);text-align:right;overflow-wrap:anywhere}
.spec-note{font-size:10.5px;color:var(--muted);line-height:1.7;margin-top:14px}
.more-specs{margin-top:16px;border:1px solid var(--line);background:var(--white)}
.more-specs summary{padding:12px 16px;cursor:pointer;font-size:12px;font-weight:600;color:var(--petrol-800);display:flex;justify-content:space-between;gap:10px}
.more-specs summary span{font-family:var(--font-mono);font-size:9px;color:var(--muted);font-weight:400}
.more-specs__body{padding:0 16px 14px;border-top:1px solid var(--line)}
.spec-group h3{font-size:12px;margin:16px 0 4px;color:var(--petrol-800);font-family:var(--font-mono);letter-spacing:.05em}
.spec-group .spec-table__row{font-size:11px;padding:7px 0}
.two-col-text{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:4px}
.two-col-text h3{font-size:15px;margin-bottom:6px}
.two-col-text p{font-size:13px;color:var(--muted);line-height:1.8}
.compat-strip{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:20px;font-size:11px}
.compat-strip span{color:var(--muted);margin-right:4px}
.compat-strip a{border:1px solid var(--line);background:var(--white);padding:4px 9px;color:var(--petrol-700)}
.compat-strip a:hover{border-color:var(--petrol-700)}
.source-box{background:var(--white);border:1px solid var(--line)}
.source-box__row{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:10px 14px;border-bottom:1px solid var(--line);font-size:11px}
.source-box__row:last-child{border-bottom:0}
.source-box__row span:first-child{color:var(--muted)}
.source-box__row a{color:var(--petrol-700);overflow-wrap:anywhere}
.source-box__row a:hover{text-decoration:underline}
.source-details{margin-top:12px;border:1px solid var(--line);background:var(--paper)}
.source-details summary{padding:10px 14px;font-size:11px;color:var(--muted);cursor:pointer}
.source-details p{padding:0 14px 14px;font-size:11px;line-height:1.75;color:var(--ink-2);overflow-wrap:anywhere}
.product-aside{position:sticky;top:calc(var(--header-h) + 18px);display:flex;flex-direction:column;gap:14px}
.aside-card{background:var(--white);border:1px solid var(--line);padding:20px}
.aside-card--dark{background:var(--petrol-900);border-color:var(--petrol-900);color:var(--white)}
.aside-card--dark .mono{color:var(--teal-300);font-size:9px;letter-spacing:.1em}
.aside-card--dark h2{color:var(--white);font-size:22px;margin-top:10px}
.aside-card--dark p{color:var(--teal-100);font-size:12px;line-height:1.75;margin-top:8px}
.aside-card--dark .btn{margin-top:16px}
.aside-card--source{background:var(--teal-050);border-color:var(--teal-100)}
.aside-card--source .mono{font-size:9px;color:var(--petrol-700);letter-spacing:.1em}
.aside-card--source p{font-size:12px;color:var(--ink-2);line-height:1.75;margin-top:8px}
.aside-card__head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}
.aside-card__head h2{font-size:15px}
.aside-card__head a{font-size:10px;color:var(--petrol-700)}
.aside-contact{display:block;font-family:var(--font-mono);font-size:11px;color:var(--teal-100);margin-top:8px}
.aside-contact:hover{color:var(--white)}
.aside-list{display:flex;flex-direction:column}
.aside-list a{display:grid;grid-template-columns:94px 1fr;gap:9px;padding:9px 0;border-bottom:1px solid var(--line);font-size:11px;line-height:1.5;color:var(--ink-2)}
.aside-list a:last-child{border-bottom:0}
.aside-list a:hover{color:var(--petrol-700)}
.aside-list .mono{font-size:10px;color:var(--petrol-700)}
.aside-list--plain a{grid-template-columns:52px 1fr}
.aside-note{font-size:11px;color:var(--muted);line-height:1.7;margin-bottom:12px}

/* ── applications detail ────────────────────────────────── */
.app-hero__series{display:flex;flex-direction:column;gap:5px;border-left:2px solid var(--teal-500);padding-left:18px}
.app-hero__series span{font-size:9px;color:var(--muted);letter-spacing:.08em}
.app-hero__series a{font-family:var(--font-mono);font-size:13px;color:var(--petrol-800);font-weight:650}
.app-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:56px;align-items:start}
.app-article .lede{font-size:16px;line-height:1.9;color:var(--ink-2);margin-bottom:36px}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.check-grid>div{background:var(--white);padding:20px}
.check-grid>div>span{font-family:var(--font-mono);font-size:10px;color:var(--petrol-700)}
.check-grid h3{font-size:16px;margin-top:16px}
.check-grid p{font-size:12px;color:var(--muted);line-height:1.75;margin-top:6px}
.related-list{border-top:1px solid var(--line)}
.related-row{display:grid;grid-template-columns:126px 1fr 1.1fr 20px;gap:14px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px}
.related-row:hover{background:var(--white)}
.related-row .mono{font-size:11px;color:var(--petrol-700)}
.related-row>span:nth-child(3){font-size:11px;color:var(--muted)}
.related-row svg{width:15px;height:15px;fill:none;stroke:var(--petrol-700);stroke-width:1.7}
.app-aside{position:sticky;top:calc(var(--header-h) + 18px);display:flex;flex-direction:column;gap:14px}

/* ── downloads ──────────────────────────────────────────── */
.doc-stats{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:24px;max-width:760px}
.doc-stats div{padding:12px 26px 12px 0;margin-right:26px;border-right:1px solid var(--line)}
.doc-stats div:last-child{border-right:0}
.doc-stats strong{display:block;font-family:var(--font-mono);font-size:15px;color:var(--petrol-800)}
.doc-stats span{display:block;font-size:10px;color:var(--muted);margin-top:2px}
.document-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.document-card{background:var(--white);border:1px solid var(--line);padding:24px;display:flex;flex-direction:column;scroll-margin-top:100px}
.document-card__top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.document-card__top .mono{font-size:9px;color:var(--muted)}
.document-card h2{font-size:22px;line-height:1.35}
.document-card>p{font-size:12px;color:var(--muted);line-height:1.75;margin-top:9px}
.document-card__meta{display:flex;flex-wrap:wrap;gap:16px 28px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.document-card__meta dt{font-size:9px;color:var(--muted)}
.document-card__meta dd{font-size:11px;color:var(--ink-2);margin-top:2px}
.document-card__actions{display:flex;align-items:center;gap:16px;margin-top:auto;padding-top:22px}
.doc-table td{font-size:11px}
.download-note{background:var(--petrol-900);color:var(--white);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:40px}
.download-note .mono{color:var(--teal-300);font-size:9px;letter-spacing:.1em}
.download-note h2{font-size:26px;margin-top:9px;color:var(--white)}
.download-note p{font-size:12px;color:var(--teal-100);line-height:1.75;margin-top:8px;max-width:52em}
.download-note .btn{flex:none}

/* ── knowledge / article ────────────────────────────────── */
.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.article-card{background:var(--white);padding:24px;display:flex;flex-direction:column;min-height:230px}
.article-card>span{font-size:10px;color:var(--muted)}
.article-card h2{font-size:19px;line-height:1.45;margin-top:24px}
.article-card h2 a:hover{color:var(--petrol-700)}
.article-card p{font-size:12px;color:var(--muted);line-height:1.75;margin-top:9px}
.article-card .arrow-link{margin-top:auto;padding-top:20px}
.faq-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:64px;align-items:start}
.faq-intro h2{font-size:34px;margin-top:18px}
.faq-intro p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:10px;max-width:28em}
.faq-intro .btn{margin-top:22px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:var(--white)}
.faq-item summary{display:flex;align-items:center;gap:14px;padding:16px 18px;cursor:pointer;font-size:14px;font-weight:550;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .mono{font-size:10px;color:var(--petrol-700);flex:none}
.faq-icon{width:16px;height:16px;margin-left:auto;position:relative;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--petrol-700);left:3px;right:3px;top:7px;height:1.5px;transition:transform .2s var(--ease)}
.faq-icon::after{transform:rotate(90deg)}
.faq-item[open] .faq-icon::after{transform:rotate(0)}
.faq-answer{padding:0 18px 18px 50px}
.faq-answer p{font-size:13px;color:var(--ink-2);line-height:1.85;max-width:54em}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:64px;align-items:start}
.article-body>section{padding:0 0 34px;margin-bottom:34px;border-bottom:1px solid var(--line);position:relative}
.article-body h2{font-size:28px;margin-bottom:12px}
.article-body p{font-size:15px;color:var(--ink-2);line-height:1.95;max-width:48em}
.article-no{display:block;font-size:10px;color:var(--muted);margin-bottom:10px}
.article-sources{background:var(--white);border:1px solid var(--line);padding:24px}
.article-sources h2{font-size:18px;margin-bottom:10px}
.article-sources li{font-size:12px;color:var(--ink-2);padding:4px 0 4px 14px;position:relative}
.article-sources li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:1px;background:var(--teal-500)}
.article-sources p{font-size:11px;color:var(--muted);line-height:1.7;margin-top:14px}
.article-aside{position:sticky;top:calc(var(--header-h) + 18px);display:flex;flex-direction:column;gap:14px}
.toc{display:flex;flex-direction:column}
.toc a{font-size:11px;color:var(--ink-2);padding:7px 0;border-bottom:1px solid var(--line)}
.toc a:hover{color:var(--petrol-700)}

/* ── about ──────────────────────────────────────────────── */
.about-stats{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:26px;max-width:700px}
.about-stats div{padding:14px 30px 14px 0;margin-right:30px;border-right:1px solid var(--line)}
.about-stats div:last-child{border-right:0}
.about-stats strong{display:block;font-family:var(--font-mono);font-size:24px;color:var(--petrol-800);line-height:1.2}
.about-stats span{font-size:10px;color:var(--muted)}
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:64px;align-items:start}
.about-article section{padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--line)}
.about-article .mono{font-size:10px;color:var(--muted)}
.about-article h2{font-size:26px;margin:7px 0 10px}
.about-article p{font-size:14px;color:var(--ink-2);line-height:1.9;max-width:50em}
.about-article .callout{margin-top:8px}
.about-aside{display:flex;flex-direction:column;gap:14px}
.about-aside .aside-card--dark p{font-size:12px}

/* ── contact / forms ────────────────────────────────────── */
.contact-layout{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:64px;align-items:start}
.contact-form-wrap .section-head{margin-bottom:24px}
.contact-aside{display:flex;flex-direction:column;gap:14px}
.contact-line{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-bottom:1px solid color-mix(in srgb,var(--white) 16%,transparent)}
.contact-line:last-child{border-bottom:0}
.contact-line span{font-size:9px;color:var(--teal-300)}
.contact-line strong{font-size:12px;color:var(--white);font-weight:550;line-height:1.55}
.check-list li{font-size:12px;color:var(--ink-2);padding:6px 0 6px 15px;position:relative;border-bottom:1px solid var(--line)}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:"";position:absolute;left:0;top:13px;width:5px;height:5px;background:var(--teal-500)}
.enquiry-form{background:var(--white);border:1px solid var(--line);padding:24px}
.enquiry-form--compact{padding:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.enquiry-form label{display:flex;flex-direction:column;gap:5px;font-size:10px;color:var(--muted);margin-bottom:13px}
.enquiry-form label span{color:var(--signal)}
.enquiry-form input,.enquiry-form textarea{border:1px solid var(--line);background:var(--paper);padding:9px 10px;font-size:13px;width:100%;border-radius:0;transition:border-color .2s,background .2s}
.enquiry-form input:focus,.enquiry-form textarea:focus{outline:none;border-color:var(--petrol-700);background:var(--white)}
.enquiry-form textarea{resize:vertical;min-height:110px;line-height:1.7}
.form-full{display:block}
.form-policy{font-size:10px;color:var(--muted);line-height:1.65;margin:2px 0 12px}
.form-submit{width:100%}
.form-status{font-size:12px;line-height:1.6;margin-top:10px;min-height:0}
.form-status:empty{display:none}
.form-status.is-ok{background:var(--teal-050);border:1px solid var(--teal-300);color:var(--petrol-800);padding:9px 11px}
.form-status.is-error{background:color-mix(in srgb,var(--signal) 8%,var(--white));border:1px solid color-mix(in srgb,var(--signal) 35%,var(--white));color:var(--signal);padding:9px 11px}
.form-fallback{font-size:10px;color:var(--muted);line-height:1.6;margin-top:10px}
.form-fallback a{color:var(--petrol-700);text-decoration:underline}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* ── search ─────────────────────────────────────────────── */
.search-page-form{display:flex;gap:8px;max-width:760px;margin-top:24px}
.search-page-form input{flex:1;border:1px solid var(--line-strong);background:var(--white);padding:12px 14px;font-size:15px;min-width:0;border-radius:0}
.search-page-form input:focus{outline:none;border-color:var(--petrol-700)}
.search-page-form .btn{min-height:50px}
.search-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.search-results{min-height:260px}
.search-hint{font-size:13px;color:var(--muted);background:var(--white);border:1px solid var(--line);padding:20px}
.search-result{display:grid;grid-template-columns:80px 1fr 24px;gap:16px;align-items:center;background:var(--white);border:1px solid var(--line);border-bottom:0;padding:14px 16px}
.search-result:last-child{border-bottom:1px solid var(--line)}
.search-result:hover{background:var(--teal-050)}
.search-result__type{font-family:var(--font-mono);font-size:9px;color:var(--muted);letter-spacing:.06em}
.search-result h2{font-size:15px;line-height:1.5}
.search-result p{font-size:11px;color:var(--muted);margin-top:3px;line-height:1.55}
.search-result svg{width:16px;height:16px;fill:none;stroke:var(--petrol-700);stroke-width:1.7}
.search-count{font-size:11px;color:var(--muted);margin-bottom:12px}
.search-count strong{font-family:var(--font-mono);color:var(--petrol-800)}
.search-aside{display:flex;flex-direction:column;gap:14px}

/* ── legal / 404 ────────────────────────────────────────── */
.legal{max-width:880px}
.legal h2{font-size:22px;margin:34px 0 8px}
.legal h2:first-child{margin-top:0}
.legal p{font-size:14px;color:var(--ink-2);line-height:1.9;margin-bottom:10px}
.legal a{color:var(--petrol-700);text-decoration:underline}
.notfound{padding:110px 0 120px;background:var(--white);border-bottom:1px solid var(--line);position:relative}
.notfound::after{content:"";position:absolute;inset:0;background-image:linear-gradient(to right,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px),linear-gradient(to bottom,color-mix(in srgb,var(--petrol-800) 6%,transparent) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to right,transparent,black 60%,black);pointer-events:none}
.notfound__inner{position:relative;z-index:1;max-width:720px}
.notfound__code{font-size:11px;color:var(--petrol-700);letter-spacing:.1em}
.notfound h1{font-size:clamp(38px,5vw,60px);margin-top:14px;color:var(--petrol-950)}
.notfound p{font-size:15px;color:var(--muted);margin-top:14px;max-width:34em}
.notfound__links{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* ── responsive ─────────────────────────────────────────── */
@media (max-width:1180px){
  .wrap{padding-left:24px;padding-right:24px}
  .header-search{width:170px}
  .nav__link{padding:10px 9px;font-size:14px}
  .hero__inner{gap:32px}
  .quick-finder{grid-template-columns:170px repeat(4,minmax(0,1fr)) auto}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero__stats div:nth-child(2){border-right:0}
  .hero__stats div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .series-list__row{grid-template-columns:40px minmax(0,1fr) 180px 120px;gap:18px}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .spec-strip__inner{grid-template-columns:repeat(3,minmax(0,1fr))}
  .spec-strip__inner>div:nth-child(3){border-right:0}
  .spec-strip__inner>div:nth-child(-n+3){border-bottom:1px solid color-mix(in srgb,var(--white) 16%,transparent)}
  .product-layout,.app-layout,.article-layout,.about-grid,.contact-layout,.search-layout{grid-template-columns:minmax(0,1fr) 310px;gap:36px}
  .footer__top{grid-template-columns:1.4fr repeat(3,1fr) 1.1fr;gap:24px}
}
@media (max-width:960px){
  :root{--header-h:68px}
  .nav,.header-search,.header__cta{display:none}
  .menu-btn{display:block}
  .site-header.is-open .nav{display:flex;position:absolute;left:0;right:0;top:100%;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 24px 16px;gap:2px;box-shadow:var(--shadow-sm)}
  .site-header.is-open .nav__link{padding:12px 4px;border-bottom:1px solid var(--line)}
  .site-header.is-open .nav__link.is-active::after{display:none}
  .site-header.is-open .mobile-search{display:block}
  .hero{padding-top:44px}
  .hero__inner{grid-template-columns:1fr;gap:38px}
  .hero__visual{max-width:620px;width:100%}
  .hero h1{font-size:clamp(40px,7vw,58px)}
  .quick-finder{grid-template-columns:1fr 1fr;position:relative}
  .quick-finder__label{grid-column:1/-1}
  .quick-finder label{border-bottom:1px solid var(--line)}
  .quick-finder .btn{grid-column:1/-1;margin:12px}
  .section{padding:64px 0}
  .section-head,.section-head--stack{grid-template-columns:1fr;gap:14px}
  .section-index{flex-direction:row;align-items:baseline;gap:10px;border-top:0;padding-top:0}
  .section-head__main h2{font-size:30px}
  .series-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .series-card,.series-card--wide{grid-column:span 3;display:flex;flex-direction:column}
  .series-card--3ld9{grid-column:span 6;display:flex;flex-direction:column}
  .series-card__media,.series-card--3ld3 .series-card__media,.series-card--3ld5 .series-card__media{border-left:0;border-top:1px solid var(--line);min-height:180px}
  .function-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .logic-grid,.duo,.about-strip{grid-template-columns:1fr;gap:36px}
  .app-row{grid-template-columns:40px 1fr 30px;gap:10px}
  .app-row__desc{grid-column:2;font-size:12px}
  .app-row__series{grid-column:2;font-size:9px}
  .app-row__arrow{grid-column:3;grid-row:1}
  .applications-band{padding:64px 0}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer__top{grid-template-columns:1fr 1fr;gap:28px}
  .footer__brand{grid-column:1/-1}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .footer__source{text-align:left}
  .page-hero__grid{grid-template-columns:1fr;gap:24px}
  .page-hero__stats{max-width:560px}
  .series-hero{grid-template-columns:1fr;gap:28px}
  .series-hero__media{max-width:600px}
  .series-list__row{grid-template-columns:40px 1fr 140px;gap:16px}
  .series-list__media{grid-column:2;max-width:300px}
  .series-list__link{grid-column:2;justify-content:flex-start}
  .product-hero__grid{grid-template-columns:1fr;gap:28px}
  .product-hero__media{max-width:600px;aspect-ratio:4/3}
  .product-layout,.app-layout,.article-layout,.about-grid,.contact-layout,.search-layout{grid-template-columns:1fr}
  .product-aside,.app-aside,.article-aside{position:static;display:grid;grid-template-columns:1fr 1fr;align-items:start}
  .article-aside .aside-card:first-child{grid-column:1/-1}
  .data-table th{position:static}
  .table-wrap{overflow-x:auto;overscroll-behavior-inline:contain}
  .data-table{min-width:820px}
  .filter-bar{grid-template-columns:1fr 1fr 1fr}
  .filter-bar label{border-bottom:1px solid var(--line)}
  .filter-bar .btn{grid-column:1/-1;margin:10px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .document-grid{grid-template-columns:1fr}
  .download-note{flex-direction:column;align-items:flex-start}
  .knowledge-grid{grid-template-columns:1fr 1fr}
  .about-aside{display:grid;grid-template-columns:1fr 1fr;align-items:start}
  .contact-aside{display:grid;grid-template-columns:1fr 1fr;align-items:start}
}
@media (max-width:720px){
  .wrap{padding-left:18px;padding-right:18px}
  .filter-bar{grid-template-columns:1fr}
  .filter-bar .btn{grid-column:1}
  .table-tools{flex-wrap:wrap;gap:8px}
  .table-tools__search{max-width:100%;flex-basis:100%}
  .table-tools__count{width:100%}
  .topbar__tag{font-size:9.5px}
  .topbar__links{gap:12px;font-size:10px}
  .brand__text strong{font-size:15px}
  .brand__text small{font-size:9px}
  .brand__mark{width:38px;height:38px}
  .header__inner{gap:12px}
  .hero{padding-top:36px}
  .hero h1{font-size:clamp(36px,9vw,48px);letter-spacing:-.04em}
  .hero h1 em{white-space:normal}
  .hero__lead{font-size:15px;line-height:1.8}
  .hero__actions .btn{width:100%}
  .hero__stats{grid-template-columns:1fr 1fr}
  .hero-stage{padding:7%}
  .stage-label--right{right:10px;top:auto;bottom:64px}
  .stage-model{right:10px;bottom:10px}
  .quick-finder{grid-template-columns:1fr}
  .quick-finder label{border-right:0}
  .section{padding:52px 0}
  .section-head__main h2{font-size:27px}
  .series-grid{grid-template-columns:1fr}
  .series-card,.series-card--wide,.series-card--3ld9{grid-column:1}
  .function-grid{grid-template-columns:1fr}
  .function-tile{min-height:170px}
  .product-grid{grid-template-columns:1fr}
  .page-hero{padding:32px 0 34px}
  .page-hero h1{font-size:34px}
  .page-hero__stats{grid-template-columns:1fr 1fr}
  .page-hero__stats div:last-child{grid-column:1/-1;border-top:1px solid var(--line)}
  .series-hero__specs{flex-wrap:wrap}
  .series-hero__specs div{margin-right:14px;padding-right:14px}
  .series-list__row{grid-template-columns:1fr;gap:12px;padding:22px 0}
  .series-list__no{display:none}
  .series-list__media{grid-column:1;max-width:100%}
  .series-list__link{grid-column:1}
  .ref-model-grid{grid-template-columns:1fr 1fr}
  .product-hero h1{font-size:30px}
  .quick-facts{grid-template-columns:1fr 1fr}
  .quick-facts div:nth-child(2){border-right:0}
  .quick-facts div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .spec-strip__inner{grid-template-columns:1fr 1fr}
  .spec-strip__inner>div{padding:12px 12px}
  .spec-strip__inner>div:nth-child(2n){border-right:0}
  .spec-strip__inner>div:nth-child(3){border-right:1px solid color-mix(in srgb,var(--white) 16%,transparent)}
  .spec-strip__inner>div:first-child{padding-left:12px}
  .product-aside,.app-aside,.article-aside,.about-aside,.contact-aside{grid-template-columns:1fr}
  .two-col-text{grid-template-columns:1fr;gap:18px}
  .spec-table__row{grid-template-columns:1fr;gap:3px}
  .spec-table__row strong{text-align:left}
  .source-box__row{grid-template-columns:1fr;gap:3px}
  .content-block h2{font-size:23px}
  .content-block__head{flex-direction:column;gap:4px}
  .check-grid{grid-template-columns:1fr}
  .related-row{grid-template-columns:1fr 20px;gap:4px}
  .related-row>span:nth-child(3){display:none}
  .document-card{padding:18px}
  .document-card__actions{flex-wrap:wrap}
  .knowledge-grid{grid-template-columns:1fr}
  .article-layout{gap:28px}
  .article-body h2{font-size:23px}
  .about-stats,.doc-stats{flex-wrap:wrap}
  .about-stats div,.doc-stats div{margin-bottom:10px}
  .form-row{grid-template-columns:1fr;gap:0}
  .enquiry-form{padding:18px}
  .footer__top{grid-template-columns:1fr}
  .footer__brand{grid-column:1}
  .footer__bottom{font-size:9px}
  .search-result{grid-template-columns:64px 1fr;gap:10px}
  .search-result svg{display:none}
  .search-page-form{flex-direction:column}
  .notfound{padding:70px 0 80px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}