@font-face{
  font-family:"Roboto Condensed";
  src:url("/static/fonts/roboto-condensed-latin.woff2") format("woff2");
  font-weight:300 700;font-style:normal;font-display:swap;
}
:root{
  --ink:#05171D;--ink-2:#0C2833;--ink-3:#163E4C;
  --cyan:#009EE2;--cyan-dark:#0079AD;--cyan-pale:#E5F6FD;
  --paper:#F3F6F7;--steel:#E5ECEF;--line:#D2DDE1;--line-dark:#26434F;
  --muted:#5A6B72;--white:#fff;--red:#E23B47;
  --wrap:1240px;--radius:3px;
  --font:"Roboto Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --shadow:0 18px 50px rgba(5,23,29,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan-dark)}
h1,h2,h3,h4{font-weight:700;line-height:1.15;margin:0 0 .5em;text-wrap:balance;letter-spacing:-.01em}
h1{font-size:clamp(2.3rem,5vw,4.6rem)}
h2{font-size:clamp(1.7rem,3vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem)}
p{margin:0 0 1em;text-wrap:pretty}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.wrap--narrow{max-width:820px}
.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{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:1000}
.skip:focus{left:8px;top:8px}
.muted{color:var(--muted)}
.small{font-size:.9rem;color:var(--muted)}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--cyan-dark);margin-bottom:12px}
.eyebrow--light{color:#7FD9F7}
.text-link{font-weight:700;color:var(--cyan-dark);font-size:.92rem;letter-spacing:.02em}
.text-link:hover{color:var(--ink)}
.subtle-link{color:var(--muted)}
.source-note{font-size:.85rem;color:var(--muted);border-left:2px solid var(--line);padding-left:14px;margin:18px 0}

/* header */
.topbar{background:var(--ink);color:#B9CDD4;font-size:.78rem;letter-spacing:.03em}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:34px}
.topbar__links{display:flex;gap:18px;white-space:nowrap}
.topbar a:hover{color:#fff}
.header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header__inner{display:flex;align-items:center;gap:28px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo img{width:168px}
.logo__cn{font-size:.72rem;border:1px solid var(--ink);padding:2px 6px;line-height:1.2;letter-spacing:.08em}
.nav{display:flex;gap:2px;margin-left:auto}
.nav__link{padding:10px 13px;font-size:.95rem;font-weight:700;color:var(--ink-3);border-bottom:2px solid transparent}
.nav__link:hover{color:var(--ink);border-color:var(--cyan)}
.nav__link.is-active{color:var(--ink);border-color:var(--cyan)}
.header__actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border:1px solid var(--line);background:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8}
.icon-btn:hover{border-color:var(--ink)}
.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;padding:11px 10px}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
.searchbar{border-top:1px solid var(--line);background:var(--paper)}
.searchbar__inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px}
.searchbar svg{width:20px;height:20px;fill:none;stroke:var(--muted);stroke-width:1.8}
.searchbar input{flex:1;border:1px solid var(--line);background:#fff;padding:12px 14px;font:inherit}
.searchbar input:focus{outline:2px solid var(--cyan);outline-offset:1px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;font:700 .92rem/1 var(--font);letter-spacing:.02em;border:1px solid transparent;cursor:pointer;transition:.18s ease;text-align:center}
.btn--cyan{background:var(--cyan);color:var(--ink)}
.btn--cyan:hover{background:#33B4EA;color:var(--ink)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--ink-3);color:#fff}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn--ghost-light:hover{background:#fff;color:var(--ink)}
.btn--lg{padding:15px 28px;font-size:1rem}
.btn--sm{padding:9px 14px;font-size:.82rem}
.btn--full{width:100%;margin-top:10px}

/* hero */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.42;object-position:center 55%}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,23,29,.96) 0%,rgba(5,23,29,.78) 46%,rgba(5,23,29,.24) 100%)}
.hero__inner{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(200px,.65fr);gap:40px;padding-top:90px;padding-bottom:90px;align-items:end}
.hero h1{max-width:12em;color:#fff}
.hero p{max-width:36em;color:#CFE0E6;font-size:1.08rem}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 38px}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;border-top:1px solid rgba(255,255,255,.22);padding-top:22px;margin:0;max-width:640px}
.hero__stats div{min-width:0}
.hero__stats dt{font-size:.76rem;color:#9FB8C0;letter-spacing:.08em}
.hero__stats dd{margin:2px 0 0;font-size:1.8rem;font-weight:700;color:#fff}
.hero__badge{justify-self:end;align-self:end;border:1px solid rgba(255,255,255,.4);padding:16px 18px;text-align:center;letter-spacing:.18em;font-size:.7rem;color:#CFE0E6;background:rgba(5,23,29,.28)}
.hero__badge strong{display:block;font-size:1.15rem;color:#fff;letter-spacing:.12em;margin:4px 0}

/* sections */
.section{padding:78px 0}
.section--tight{padding:52px 0}
.section--steel{background:var(--paper)}
.section--dark{background:var(--ink);color:#fff}
.section--dark .section-head p{color:#B9CDD4}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:34px}
.section-head > div{min-width:16em;max-width:760px}
.section-head p{max-width:36em;margin:0;color:var(--muted);font-size:.98rem}
.section-head--light h2{color:#fff}
.section-head--light p{color:#B9CDD4}
.page-head{padding:54px 0 34px;border-bottom:1px solid var(--line)}
.page-head h1{max-width:18em;font-size:clamp(2.1rem,4vw,3.6rem)}
.page-head__intro{max-width:52em;font-size:1.05rem;color:#344B54;margin-top:10px}
.page-head__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.crumbs{font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:7px;margin-bottom:24px}
.crumbs a:hover{color:var(--cyan-dark)}
.crumbs span{color:#9AAAB1}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px;max-width:760px}
.stat-row div{border-left:2px solid var(--cyan);padding-left:14px}
.stat-row strong{display:block;font-size:1.9rem;line-height:1.1}
.stat-row span{font-size:.8rem;color:var(--muted)}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat-card{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:.2s ease}
.cat-card:hover{border-color:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}
.cat-card img{width:100%;height:170px;object-fit:cover;background:var(--paper)}
.cat-card--all{background:var(--ink);color:#fff;border-color:var(--ink);justify-content:center}
.cat-card--all h3{color:#fff;font-size:1.5rem}
.cat-card--all p{color:#B9CDD4}
.cat-card--all .text-link{color:#7FD9F7}
.cat-card__body{padding:22px}
.cat-card__count{font-size:.76rem;letter-spacing:.08em;color:var(--cyan-dark);font-weight:700}
.cat-card h3{margin:6px 0 8px}
.cat-card p{font-size:.92rem;color:var(--muted);margin-bottom:12px}
.cat-grid--compact{grid-template-columns:repeat(4,1fr)}

/* family */
.family-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.family{border:1px solid var(--line-dark);padding:34px;background:linear-gradient(160deg,rgba(255,255,255,.04),transparent)}
.family__tag{display:inline-block;background:var(--cyan);color:var(--ink);font-weight:700;padding:4px 10px;letter-spacing:.1em;font-size:.78rem}
.family__tag--outline{background:transparent;border:1px solid #fff;color:#fff}
.family h3{color:#fff;margin-top:18px}
.family p{color:#C4D6DC}
.family ul{color:#C4D6DC;font-size:.94rem}
.family .btn{margin-top:10px}

/* series cards */
.series-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.series-card{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:.2s ease;min-width:0}
.series-card:hover{border-color:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}
.series-card__img{height:150px;background:var(--paper);display:flex;align-items:center;justify-content:center;overflow:hidden}
.series-card__img img{width:100%;height:100%;object-fit:contain;padding:14px}
.series-card__body{padding:18px 20px 20px}
.series-card__meta{font-size:.74rem;letter-spacing:.06em;color:var(--cyan-dark);font-weight:700}
.series-card h3{margin:6px 0 6px;font-size:1.08rem}
.series-card p{font-size:.88rem;color:var(--muted);margin-bottom:10px;min-height:2.6em}

/* app cards */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.app-card{position:relative;min-height:320px;overflow:hidden;color:#fff;background:var(--ink)}
.app-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;transition:.35s ease}
.app-card:hover img{opacity:.72;transform:scale(1.03)}
.app-card div{position:absolute;inset:auto 0 0;padding:22px;background:linear-gradient(transparent,rgba(5,23,29,.92))}
.app-card h3{color:#fff;margin-bottom:4px}
.app-card p{color:#C4D6DC;font-size:.86rem;margin:0}
.app-detail{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center}
.app-detail img{width:100%;height:420px;object-fit:cover;border:1px solid var(--line)}
.app-detail h2{max-width:14em}
.app-detail .pill-row{margin-top:16px}

/* download teaser */
.download-teaser{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.download-teaser h2{max-width:14em}
.doc-mini{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.doc-mini li{display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.doc-mini li>span{flex:0 0 38px;font-size:.72rem;font-weight:700;letter-spacing:.08em;color:var(--cyan-dark);border:1px solid var(--line);padding:3px 0;text-align:center}
.doc-mini strong{display:block;font-size:.98rem}
.doc-mini small{color:var(--muted)}

/* knowledge */
.knowledge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.knowledge-card{border-top:3px solid var(--ink);padding:22px 20px 20px;background:#fff;transition:.18s ease}
.knowledge-card span{font-size:.76rem;color:var(--cyan-dark);font-weight:700;letter-spacing:.08em}
.knowledge-card h3{font-size:1.05rem;margin:10px 0 8px}
.knowledge-card p{font-size:.88rem;color:var(--muted);margin:0}
.knowledge-card:hover{border-color:var(--cyan);box-shadow:var(--shadow)}

/* about strip */
.about-strip{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.about-strip img{width:100%;height:380px;object-fit:cover}

/* cta */
.cta-band{background:var(--cyan);color:var(--ink);padding:44px 0}
.cta-band__inner{display:flex;justify-content:space-between;align-items:center;gap:40px}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin-bottom:4px;max-width:16em}
.cta-band p{margin:0;max-width:38em}
.cta-band__actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-band .btn--ghost-light{border-color:rgba(5,23,29,.55);color:var(--ink)}
.cta-band .btn--ghost-light:hover{background:var(--ink);color:#fff}

/* footer */
.footer{background:var(--ink);color:#B9CDD4;font-size:.9rem;padding:60px 0 22px}
.footer__grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:44px}
.footer h3{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer__brand img{width:150px;margin-bottom:16px}
.footer__brand p{max-width:28em;color:#9FB8C0}
.footer__operator{font-size:.78rem;color:#718C95}
.footer__col a,.footer__contact span{display:block;padding:5px 0;color:#C4D6DC}
.footer__col a:hover{color:#fff}
.footer__col span{color:#7F99A2;font-size:.8rem}
.footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;border-top:1px solid var(--line-dark);margin-top:44px;padding-top:20px;font-size:.78rem;color:#7F99A2}
.footer__legal{display:flex;gap:18px}
.footer__source{max-width:42em}

/* product table */
.table-tools{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:12px}
.table-search{flex:1;max-width:460px}
.table-search input{width:100%;border:1px solid var(--line);padding:11px 14px;font:inherit;background:#fff}
.table-search input:focus{outline:2px solid var(--cyan);outline-offset:1px}
.table-count{font-size:.84rem;color:var(--muted);white-space:nowrap}
.table-scroll{width:100%;max-width:100%;min-width:0;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;position:relative}
.product__main,.product__aside,.doc-main{min-width:0}
.model-table{width:100%;border-collapse:collapse;font-size:.9rem}
.model-table thead th{background:var(--ink);color:#fff;text-align:left;padding:12px 14px;font-size:.78rem;letter-spacing:.06em;font-weight:700;white-space:nowrap}
.model-table tbody tr{border-bottom:1px solid var(--line)}
.model-table tbody tr:nth-child(even){background:#FAFCFC}
.model-table tbody tr:hover{background:var(--cyan-pale)}
.model-table td{padding:11px 14px;vertical-align:top}
.model-table__art{font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.model-table__art a{color:var(--ink)}
.model-table__spec span{display:inline-block;margin-right:12px;color:var(--muted);font-size:.84rem;white-space:nowrap}
.model-table__go{width:38px;text-align:right;font-weight:700;color:var(--cyan-dark)}
.empty{padding:28px;border:1px dashed var(--line);color:var(--muted);text-align:center}

/* page hero */
.page-hero{background:var(--paper);border-bottom:1px solid var(--line)}
.page-hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:52px;padding-bottom:52px}
.page-hero h1{font-size:clamp(2.2rem,4vw,3.6rem);max-width:12em}
.page-hero__desc{max-width:38em;color:#344B54;font-size:1.04rem}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.page-hero__img img{width:100%;height:380px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:20px}

/* product */
.product{padding:28px 0 10px}
.product__grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:54px;align-items:start}
.gallery__main{background:var(--paper);border:1px solid var(--line);height:480px;display:flex;align-items:center;justify-content:center;padding:28px}
.gallery__main img{max-height:420px;width:auto;max-width:100%;object-fit:contain}
.gallery__note{font-size:.78rem;color:var(--muted);margin-top:10px}
.product__artline{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.product__art{font-size:.82rem;letter-spacing:.08em;font-weight:700;color:var(--cyan-dark);font-variant-numeric:tabular-nums}
.badge{font-size:.7rem;font-weight:700;letter-spacing:.06em;padding:3px 8px;border:1px solid var(--line)}
.badge--vde{background:var(--ink);color:#fff;border-color:var(--ink)}
.product__info h1{font-size:clamp(1.8rem,3vw,2.8rem);max-width:16em}
.product__tagline{font-size:1.08rem;color:#344B54;max-width:34em}
.product__actions{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}
.key-specs{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line);margin:0}
.key-specs div{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line)}
.key-specs dt{color:var(--muted);font-size:.84rem;white-space:nowrap}
.key-specs dd{margin:0;text-align:right;font-weight:700;font-size:.88rem}
.product__highlights{margin:18px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.product__highlights li{background:var(--paper);border:1px solid var(--line);padding:6px 10px;font-size:.8rem}
.product__cols{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:54px;align-items:start}
.block{margin-bottom:44px}
.block h2{font-size:1.5rem;border-bottom:2px solid var(--ink);padding-bottom:10px;margin-bottom:18px}
.block h3.subhead{font-size:1.1rem;margin:28px 0 10px}
.prose{max-width:46em;color:#2C424B}
.spec-table{width:100%;border-collapse:collapse;font-size:.9rem}
.spec-table th,.spec-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.spec-table thead th{background:var(--paper);font-size:.78rem;letter-spacing:.05em;color:var(--muted)}
.spec-table tbody th{width:30%;font-weight:700}
.spec-table tbody th small{display:block;font-weight:400;color:var(--muted);font-size:.72rem}
.spec-table .unit{color:var(--muted);font-size:.8rem}
.spec-source{font-size:.74rem;color:var(--muted);white-space:nowrap}
.notice{background:var(--cyan-pale);border-left:3px solid var(--cyan);padding:16px 18px;margin-bottom:14px}
.notice p{margin:6px 0 0;font-size:.9rem}
.catalog-row{background:var(--paper);border:1px solid var(--line);padding:14px 16px;font-size:.84rem}
.catalog-row p{display:flex;gap:12px;margin:6px 0;overflow-wrap:anywhere}
.catalog-row span{flex:0 0 26px;font-weight:700;color:var(--cyan-dark)}
.source-list{list-style:none;padding:0;margin:0;font-size:.88rem}
.source-list li{display:flex;gap:16px;padding:9px 0;border-bottom:1px solid var(--line)}
.source-list span:first-child{flex:0 0 88px;color:var(--muted)}
.aside-card{border:1px solid var(--line);padding:22px;margin-bottom:18px;background:#fff}
.aside-card h3{font-size:1rem;margin-bottom:10px}
.aside-card p{font-size:.86rem;color:var(--muted)}
.spec-card{background:var(--ink);color:#fff;padding:26px;margin-bottom:18px}
.spec-card h2{color:#fff;font-size:1.2rem;margin-bottom:8px}
.spec-card p{color:#B9CDD4;font-size:.88rem}
.spec-card .btn--ghost{border-color:rgba(255,255,255,.4);color:#fff}
.spec-card .btn--ghost:hover{background:#fff;color:var(--ink)}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);padding:7px 12px;font-size:.82rem;background:#fff}
.pill span{font-size:.7rem;color:var(--muted)}
.pill:hover{border-color:var(--ink)}
.pill--sm{padding:5px 9px;font-size:.78rem}
.mini-dl{margin:0}
.mini-dl div{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px solid var(--line);font-size:.86rem}
.mini-dl dt{color:var(--muted)}
.mini-dl dd{margin:0;font-weight:700;text-align:right}
.split-note{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:54px;align-items:start}

/* downloads */
.doc-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.doc-list li{display:flex;align-items:center;gap:18px;padding:16px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.doc-lang{flex:0 0 44px;border:1px solid var(--line);text-align:center;font-size:.72rem;font-weight:700;letter-spacing:.06em;padding:4px 0;color:var(--cyan-dark)}
.doc-lang--de{color:var(--red);border-color:#F0C9CC}
.doc-main{flex:1;min-width:16em}
.doc-main strong{display:block;font-size:.98rem}
.doc-main small{color:var(--muted);font-size:.82rem}
.doc-size{font-size:.78rem;color:var(--muted);white-space:nowrap}
.lang-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lang-grid--four{grid-template-columns:repeat(4,1fr)}
.lang-grid div{border-top:3px solid var(--cyan);background:#fff;padding:22px}
.lang-grid strong{display:block;font-size:1.2rem}
.lang-grid span{font-size:.78rem;color:var(--cyan-dark);font-weight:700}
.lang-grid p{font-size:.88rem;color:var(--muted);margin-top:8px}

/* knowledge */
.article-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.article-card{border:1px solid var(--line);padding:28px;background:#fff;transition:.18s ease}
.article-card:hover{border-color:var(--ink);box-shadow:var(--shadow)}
.article-card>span:first-child{font-size:.78rem;color:var(--cyan-dark);font-weight:700;letter-spacing:.08em}
.article-card h2{font-size:1.35rem;margin:10px 0}
.article-card p{color:var(--muted);font-size:.92rem}
.faq__item{border-bottom:1px solid var(--line);padding:16px 0}
.faq__item summary{font-weight:700;cursor:pointer;list-style:none}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";float:right;color:var(--cyan-dark);font-size:1.2rem}
.faq__item[open] summary::after{content:"−"}
.faq__item p{margin:12px 0 0;color:#344B54;max-width:56em}
.article-body h2{font-size:1.5rem;margin:34px 0 12px}
.article-body p{font-size:1.02rem;color:#2C424B}
.article-body .source-note ul{margin:6px 0 0;font-size:.84rem}

/* about */
.fact-list{margin:0 0 20px}
.fact-list div{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:11px 0;border-bottom:1px solid var(--line)}
.fact-list dt{color:var(--muted);font-size:.86rem}
.fact-list dd{margin:0;font-size:.94rem}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.value-grid div{border-top:3px solid var(--ink);padding:24px 0 0}
.value-grid span{font-size:.78rem;font-weight:700;color:var(--cyan-dark);letter-spacing:.08em}
.value-grid h3{margin:8px 0}
.value-grid p{font-size:.92rem;color:var(--muted);max-width:26em}

/* contact */
.contact-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:54px;align-items:start}
.enquiry-form{border:1px solid var(--line);padding:28px;background:#fff}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.enquiry-form label{display:block;font-size:.86rem;font-weight:700;margin-bottom:14px;min-width:16em}
.enquiry-form label span{color:var(--red)}
.enquiry-form input,.enquiry-form textarea{width:100%;border:1px solid var(--line);padding:11px 12px;font:inherit;margin-top:5px;background:#fff}
.enquiry-form input:focus,.enquiry-form textarea:focus{outline:2px solid var(--cyan);outline-offset:1px}
.enquiry-form textarea{resize:vertical}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.form-note{font-size:.78rem;color:var(--muted);margin:12px 0 0}
.contact-card{background:var(--paper);border:1px solid var(--line);padding:28px}
.contact-card h2{font-size:1.3rem}
.contact-card dl{margin:0 0 18px}
.contact-card dl div{display:grid;grid-template-columns:56px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:.9rem}
.contact-card dt{color:var(--muted)}
.contact-card dd{margin:0}
.contact-card h3{font-size:.9rem;margin-top:22px}

/* search */
.search-page{display:flex;gap:10px;max-width:700px;margin-top:18px}
.search-page input{flex:1;border:1px solid var(--line);padding:13px 15px;font:inherit}
.search-page input:focus{outline:2px solid var(--cyan);outline-offset:1px}
.search-hint{font-size:.85rem;color:var(--muted);margin-top:14px}
.search-results{display:grid;gap:2px}
.search-result{display:grid;grid-template-columns:110px 1fr auto;gap:18px;padding:14px 16px;border-bottom:1px solid var(--line);align-items:center}
.search-result:hover{background:var(--paper)}
.search-result__type{font-size:.72rem;letter-spacing:.08em;color:var(--cyan-dark);font-weight:700}
.search-result h3{font-size:1rem;margin:0 0 2px}
.search-result p{font-size:.84rem;color:var(--muted);margin:0}
.search-result__art{font-size:.78rem;color:var(--muted);white-space:nowrap}

/* selector */
.selector{display:grid;grid-template-columns:repeat(5,minmax(0,1fr)) auto;gap:14px;align-items:end;background:var(--paper);border:1px solid var(--line);padding:20px}
.selector__field{min-width:0}
.selector__field--grow{grid-column:span 2}
.selector label{display:block;font-size:.78rem;font-weight:700;margin-bottom:5px}
.selector select,.selector input{width:100%;border:1px solid var(--line);padding:10px 11px;font:inherit;background:#fff}
.selector__count{font-size:.86rem;color:var(--muted);margin:16px 0 10px}

.notfound{padding:100px 0 120px}

/* responsive */
@media (max-width:1100px){
  .cat-grid,.series-grid,.app-grid,.knowledge-grid{grid-template-columns:repeat(2,1fr)}
  .hero__inner{grid-template-columns:1fr;padding-top:70px;padding-bottom:70px}
  .hero__badge{justify-self:start}
  .footer__grid{grid-template-columns:1fr 1fr}
  .product__cols,.split-note{grid-template-columns:1fr}
  .selector{grid-template-columns:repeat(3,1fr)}
  .selector__field--grow{grid-column:span 1}
  .page-hero__grid,.app-detail,.download-teaser,.about-strip,.contact-grid{grid-template-columns:1fr;gap:30px}
  .page-hero__img img{height:300px}
}
@media (max-width:980px){
  .wrap{padding:0 20px}
  .header__inner{min-height:66px;gap:16px}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:10px 20px 18px;box-shadow:var(--shadow)}
  .nav.is-open{display:flex}
  .nav__link{padding:12px 4px;border-bottom:1px solid var(--line)}
  .menu-btn{display:block}
  .header__cta{display:none}
  .topbar__tag{display:none}
  .topbar__inner{justify-content:center}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:start;gap:12px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .cat-grid,.series-grid,.app-grid,.knowledge-grid,.article-grid,.family-grid,.value-grid,.lang-grid,.lang-grid--four{grid-template-columns:1fr}
  .app-detail img{height:300px}
  .cta-band__inner{flex-direction:column;align-items:start;gap:20px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
  .product__grid{grid-template-columns:1fr;gap:30px}
  .gallery__main{height:360px}
  .key-specs{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .selector{grid-template-columns:1fr 1fr}
  .table-scroll{overflow-x:auto}
  .model-table{min-width:720px}
  .model-table thead th{position:static}
  .search-result{grid-template-columns:1fr}
  .search-result__art{display:none}
}
@media (max-width:520px){
  h1{font-size:2rem}
  .hero__stats{grid-template-columns:1fr 1fr}
  .hero__actions .btn{width:100%}
  .stat-row{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr}
  .cat-grid,.series-grid,.app-grid,.knowledge-grid,.article-grid,.value-grid,.lang-grid,.lang-grid--four,.selector{grid-template-columns:1fr}
  .doc-list li{gap:10px}
  .doc-size{display:none}
  .product__actions .btn{width:100%}
  .spec-card,.aside-card,.enquiry-form,.contact-card{padding:20px}
  .search-page{flex-direction:column}
  .search-page .btn{width:100%}
  .page-head{padding:40px 0 26px}
  .table-scroll{overflow-x:auto}
}