@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@300;400;600;700&display=swap');

/* =========================================================
   赫为测控 · IBM Carbon 企业蓝科技感设计系统
   单一强调色 IBM Blue / 直角几何 / 细线卡片 / 炭黑页脚
   ========================================================= */
:root{
  --blue:#0f62fe;          /* IBM Blue 唯一强调色 */
  --blue-hover:#0050e6;
  --blue-press:#002d9c;
  --blue-60:#0043ce;
  --ink:#161616;
  --ink-muted:#525252;
  --ink-subtle:#8c8c8c;
  --canvas:#ffffff;
  --surface-1:#f4f4f4;
  --surface-2:#e0e0e0;
  --line:#e0e0e0;
  --line-strong:#161616;
  --inverse:#161616;
  --inverse-1:#262626;
  --inverse-ink:#ffffff;
  --inverse-muted:#c6c6c6;
  --tech-navy:#0a1a33;
  --green:#24a148;
  --yellow:#f1c21b;
  --red:#da1e28;
  --max:1200px;
  --font:"IBM Plex Sans","Noto Sans SC","Microsoft YaHei",-apple-system,"PingFang SC",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--canvas);
  font-size:16px;line-height:1.5;letter-spacing:.16px;-webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:400}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

.container{width:min(var(--max),calc(100% - 48px));margin:auto}

.skip{position:absolute;left:-9999px}
.skip:focus{left:10px;top:10px;background:#fff;color:var(--ink);padding:8px 12px;z-index:100;border:1px solid var(--line)}

/* ---------- 顶部信息条 ---------- */
.top{height:38px;background:var(--tech-navy);color:var(--inverse-muted);font-size:13px}
.top .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.top span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lang-switch{display:inline-flex;gap:6px;align-items:center;flex:none}
.lang-switch a{color:var(--inverse-muted);font-weight:400}
.lang-switch a.active{color:#fff;text-decoration:underline;text-underline-offset:3px}
.lang-switch a:hover{color:#fff}

/* ---------- 顶栏导航 ---------- */
header{height:72px;position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand-logo{width:42px;height:42px;object-fit:contain}
.brand b{font-size:17px;line-height:1.15;color:var(--ink);display:flex;flex-direction:column}
.brand small{margin-top:2px;font-size:9px;letter-spacing:.18em;color:var(--ink-subtle);font-weight:400}
.brand.white b,.brand.white small{color:#fff}
nav{display:flex;gap:4px;align-items:center}
nav a{font-size:14px;font-weight:400;padding:24px 14px;color:var(--ink);position:relative}
nav a:hover{text-decoration:none;color:var(--blue)}
nav a:after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .2s}
nav a:hover:after,nav a.active:after{transform:scaleX(1)}
nav a.active{color:var(--blue)}
.cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;background:var(--blue);color:#fff;font-weight:400;font-size:14px;border:1px solid var(--blue);transition:.2s}
.cta:hover{background:var(--blue-hover);border-color:var(--blue-hover);color:#fff;text-decoration:none}
.cta.small{margin-left:8px}
.hamb{display:none;border:0;background:none;font-size:26px;color:var(--ink);cursor:pointer}

/* ---------- 按钮 ---------- */
.btn,.cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;
  background:var(--blue);color:#fff;border:1px solid var(--blue);
  font-weight:400;font-size:14px;letter-spacing:.16px;cursor:pointer;font-family:inherit;
  transition:background .2s,border-color .2s,color .2s;
}
.btn:hover,.cta:hover{background:var(--blue-hover);border-color:var(--blue-hover);color:#fff;text-decoration:none}
.btn:active,.cta:active{background:var(--blue-press);border-color:var(--blue-press)}
.btn.ghost,.cta.ghost{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn.ghost:hover,.cta.ghost:hover{background:rgba(15,98,254,.06)}
.btn.ghost.dark{color:var(--ink);border-color:var(--ink)}
.btn.ghost.dark:hover{background:var(--surface-1)}
.btn.light{background:#fff;color:var(--blue);border-color:#fff}
.btn.light:hover{background:var(--surface-1)}

/* ---------- 首页 Hero（深色科技网格） ---------- */
.hero{position:relative;background:var(--tech-navy);color:#fff;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(1000px 520px at 78% -15%, rgba(15,98,254,.45), transparent 60%),
    radial-gradient(700px 520px at 8% 120%, rgba(15,98,254,.20), transparent 60%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 46px);
}
.hero-inner{position:relative;z-index:1;min-height:560px;display:flex;align-items:center;padding:96px 0}
.hero .eyebrow{color:#7eb0ff}
.hero h1{font-size:clamp(38px,5.6vw,68px);font-weight:300;line-height:1.14;letter-spacing:-.5px;color:#fff;margin-bottom:20px}
.hero h1 em{font-style:normal;font-weight:300;color:#fff}
.hero p{font-size:18px;line-height:1.6;color:var(--inverse-muted);max-width:620px;margin-bottom:32px}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.hero .btn.ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.actions{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 指标条 ---------- */
.metrics{background:var(--surface-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;padding:48px 0}
.metrics .container>div:first-child{border-right:1px solid var(--line);padding-right:24px}
.metrics small{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;color:var(--ink-subtle);text-transform:uppercase}
.metrics p{margin-top:8px;color:var(--ink-muted);font-size:15px}
.metrics b{display:block;font-family:var(--mono);font-weight:300;font-size:40px;color:var(--blue);line-height:1.1;margin-bottom:4px}
.metrics span{font-size:13px;color:var(--ink-muted)}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section.soft{background:var(--surface-1)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3.4vw,34px);font-weight:400;letter-spacing:-.2px}
.section-head p{color:var(--ink-muted);max-width:520px;font-size:15px}
.eyebrow{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--blue);margin-bottom:16px;font-weight:500}

/* ---------- 卡片网格 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--canvas);border:1px solid var(--line);display:flex;flex-direction:column;transition:border-color .2s}
.card:hover{border-color:var(--blue)}
.product-art{position:relative;aspect-ratio:16/10;background:var(--surface-1);display:grid;place-items:center;overflow:hidden;border-bottom:1px solid var(--line)}
.product-art img{width:100%;height:100%;object-fit:cover}
.product-art span{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-subtle)}
.product-art i{display:none}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body small{font-family:var(--mono);font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--blue)}
.card-body h3{font-size:18px;font-weight:400;line-height:1.35}
.card-body p{color:var(--ink-muted);font-size:14px;line-height:1.6}
.card-body a{color:var(--blue);font-weight:400;margin-top:auto}
.card-body a:hover{text-decoration:underline}
.center{margin-top:40px;text-align:center}

/* ---------- 行业方案 ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.solution{position:relative;min-height:320px;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;color:#fff;overflow:hidden;border:1px solid var(--line)}
.solution:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--blue);z-index:2}
.solution span{font-family:var(--mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:#9ec5ff;margin-bottom:10px}
.solution h3{font-size:22px;font-weight:400;margin-bottom:8px}
.solution p{font-size:14px;color:rgba(255,255,255,.82);line-height:1.6}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{width:100%;height:380px;object-fit:cover;border:1px solid var(--line)}
.split h2{font-size:clamp(24px,3vw,32px);font-weight:400;margin:14px 0 16px}
.split p{color:var(--ink-muted);margin-bottom:16px;line-height:1.7}
.checks{display:grid;gap:10px;margin:8px 0 24px}
.checks li{position:relative;padding-left:26px;color:var(--ink)}
.checks li:before{content:"";position:absolute;left:0;top:7px;width:14px;height:8px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}

/* ---------- 新闻列表 ---------- */
.news-list{display:grid;border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:140px 1fr 40px;align-items:center;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);color:var(--ink);transition:padding .2s}
.news-row:hover{text-decoration:none;padding-left:12px}
.news-row time{font-family:var(--mono);font-size:13px;color:var(--ink-subtle)}
.news-row b{font-weight:400;font-size:17px}
.news-row span{color:var(--blue);font-size:18px;justify-self:end}
.news-row:hover b{color:var(--blue)}

/* ---------- 内页子头部 ---------- */
.subhero{background:var(--surface-1);border-bottom:1px solid var(--line);padding:64px 0}
.subhero h1{font-size:clamp(32px,4.5vw,52px);font-weight:300;letter-spacing:-.4px;margin:14px 0 12px}
.subhero p{color:var(--ink-muted);max-width:680px;font-size:16px}

/* ---------- 蓝色 CTA 条 ---------- */
.contact-band{background:var(--blue);color:#fff}
.contact-band .container{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:56px 0;flex-wrap:wrap}
.contact-band h2{font-size:clamp(22px,3vw,30px);font-weight:300;color:#fff}
.contact-band p{color:rgba(255,255,255,.85);margin-top:6px}

/* ---------- 页脚（炭黑） ---------- */
footer{background:var(--inverse);color:var(--inverse-muted)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding:64px 0 40px}
.foot-grid p{font-size:14px;line-height:1.7;margin-top:6px}
.foot-grid b{color:#fff;font-weight:600;font-size:14px;display:block;margin-bottom:14px}
.foot-grid a{color:var(--inverse-muted);font-size:14px;display:block;padding:5px 0}
.foot-grid a:hover{color:#fff;text-decoration:none}
.brand.white .brand-logo{filter:brightness(0) invert(1)}
.copy{border-top:1px solid var(--inverse-1);margin-top:8px;padding:24px 0;color:var(--ink-subtle);font-size:13px}
.copy a{color:var(--inverse-muted)}

/* ---------- 表单 / 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-grid h2{font-size:24px;font-weight:400;margin:12px 0}
.contact-grid p{color:var(--ink-muted);margin-bottom:8px}
.contact-grid form{display:grid;grid-template-columns:1fr 1fr;gap:16px;background:var(--surface-1);padding:32px;border:1px solid var(--line)}
.contact-grid label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--ink)}
.contact-grid label:has(textarea),
.contact-grid label:has(select){grid-column:1/-1}
.contact-grid .consent{grid-column:1/-1;flex-direction:row;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted)}
.contact-grid .consent input{width:auto}
.contact-grid .btn{grid-column:1/-1}
.contact-grid .form-status{grid-column:1/-1;font-size:14px;color:var(--green);min-height:18px}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink);background:var(--canvas);border:1px solid var(--line);padding:11px 14px;width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:inset 0 -2px 0 var(--blue)}
.hp{position:absolute;left:-9999px}
.notice{background:rgba(15,98,254,.08);border-left:3px solid var(--blue);padding:14px 16px;color:var(--ink);font-size:14px;line-height:1.6}

/* ---------- 产品详情 ---------- */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.product-visual{background:var(--surface-1);border:1px solid var(--line);aspect-ratio:4/3;display:grid;place-items:center;overflow:hidden}
.product-visual img{width:100%;height:100%;object-fit:cover}
.product-visual span{font-family:var(--mono);text-transform:uppercase;letter-spacing:1.5px;color:var(--ink-subtle)}
.narrow{max-width:880px}
.spec{width:100%;border-collapse:collapse;border:1px solid var(--line)}
.spec th,.spec td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
.spec th{width:200px;background:var(--surface-1);color:var(--ink);font-weight:600}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
.download{display:flex;justify-content:space-between;align-items:center;gap:24px;background:var(--surface-1);border:1px solid var(--line);padding:24px}
.download p{color:var(--ink-muted);font-size:14px;margin-top:6px}
.download .btn{flex:none}
.stock-badge{display:inline-flex;align-items:center;min-height:28px;padding:0 12px;font-size:13px;font-weight:600;font-family:var(--mono);letter-spacing:.5px}
.stock-in{background:#eaf6ee;color:var(--green)}
.stock-low{background:#fff5df;color:#946200}
.stock-out{background:#fff1f0;color:var(--red)}
.stock-order{background:#e8f0fe;color:var(--blue)}

/* ---------- 空状态 ---------- */
.empty{text-align:center;padding:120px 0}
.empty b{font-family:var(--mono);font-size:80px;color:var(--blue);display:block;line-height:1}
.empty h1{font-weight:300;font-size:32px;margin:12px 0}
.empty p{color:var(--ink-muted);margin-bottom:24px}

/* ---------- 成功案例 ---------- */
.case-list{display:grid;gap:32px}
.case{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--canvas);border:1px solid var(--line);overflow:hidden}
.case img{width:100%;height:100%;min-height:300px;object-fit:cover}
.case>div{padding:40px}
.case small{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue)}
.case h2{font-size:24px;font-weight:400;margin:12px 0}
.case p{color:var(--ink-muted);margin-bottom:16px;line-height:1.7}
.case ul{display:grid;gap:8px}
.case li{position:relative;padding-left:24px;color:var(--ink)}
.case li:before{content:"";position:absolute;left:0;top:7px;width:12px;height:7px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}

/* ---------- 特性栅格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-grid>div{background:var(--canvas);border:1px solid var(--line);padding:28px;transition:border-color .2s}
.feature-grid>div:hover{border-color:var(--blue)}
.feature-grid b{display:block;font-size:17px;font-weight:600;margin-bottom:10px;color:var(--ink)}
.feature-grid p{color:var(--ink-muted);font-size:14px;line-height:1.6}

/* ---------- 筛选 ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-link,.filters button{padding:10px 18px;border:1px solid var(--line);background:var(--canvas);color:var(--ink-muted);font-size:14px;white-space:nowrap;transition:.2s;cursor:pointer;font-family:inherit}
.filter-link:hover{text-decoration:none;color:var(--ink);border-color:var(--ink)}
.filter-link.active{background:var(--blue);border-color:var(--blue);color:#fff}

/* ---------- 文章列表 ---------- */
.article-list{display:grid;border-top:1px solid var(--line)}
.article{display:grid;grid-template-columns:160px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.article time{font-family:var(--mono);font-size:13px;color:var(--ink-subtle);padding-top:4px}
.article h2{font-size:20px;font-weight:400;margin-bottom:8px}
.article p{color:var(--ink-muted);font-size:14px;line-height:1.6;margin-bottom:10px}
.article a{color:var(--blue);font-size:14px}
.article a:hover{text-decoration:underline}

/* ---------- 常见问题 ---------- */
details{border:1px solid var(--line);margin-bottom:12px;background:var(--canvas)}
summary{padding:16px 20px;cursor:pointer;font-weight:600;font-size:15px;list-style:none}
summary::-webkit-details-marker{display:none}
summary:before{content:"+";color:var(--blue);font-weight:700;margin-right:10px}
details[open] summary:before{content:"\2013"}
details p{padding:0 20px 18px;color:var(--ink-muted);font-size:14px;line-height:1.7}

/* ---------- 资质 ---------- */
.license-grid{display:grid;grid-template-columns:1fr 2fr;gap:32px;align-items:start}
.license-grid>a{display:block;border:1px solid var(--line);background:var(--canvas);padding:16px;transition:border-color .2s}
.license-grid>a:hover{border-color:var(--blue);text-decoration:none}
.license-grid img{width:100%;height:200px;object-fit:cover;border:1px solid var(--line);margin-bottom:12px}
.license-grid b{display:block;font-size:16px;font-weight:600}
.license-grid span{font-size:13px;color:var(--blue)}
.placeholder-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.placeholder-grid>div{border:1px solid var(--line);background:var(--surface-1);padding:24px}
.placeholder-grid b{display:block;font-size:16px;margin-bottom:6px}
.placeholder-grid small{color:var(--ink-subtle);font-size:13px}

/* ---------- 步骤 ---------- */
.steps{counter-reset:step;list-style:none;display:grid;gap:14px;margin:16px 0}
.steps li{counter-increment:step;position:relative;padding-left:40px;color:var(--ink);line-height:1.6}
.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;background:var(--blue);color:#fff;display:grid;place-items:center;font-family:var(--mono);font-size:13px}

/* ---------- 长文 ---------- */
.prose{max-width:820px;line-height:1.8;color:var(--ink)}
.prose h2{font-size:22px;font-weight:400;margin:28px 0 12px}
.prose p{margin-bottom:14px;color:var(--ink-muted)}

/* ================= 细节强化（科技感 + 微交互） ================= */
/* 顶部信息条描边 */
.top{border-bottom:1px solid rgba(15,98,254,.32)}

/* 蓝色方块签名：每个 eyebrow 前缀 */
.eyebrow{display:inline-flex;align-items:center;gap:9px}
.eyebrow:before{content:"";width:9px;height:9px;background:var(--blue);flex:none}
.hero .eyebrow{color:#8fb8ff}

/* Hero 关键词渐变 + 底部收边 */
.hero h1 em{font-style:normal;background:linear-gradient(92deg,#9ec5ff,#0f62fe 55%,#00c6ff);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.hero-bg:after{content:"";position:absolute;left:0;right:0;bottom:0;height:150px;background:linear-gradient(180deg,transparent,rgba(10,26,51,.92))}

/* 指标条：顶部蓝描边 + 更大等宽数字 */
.metrics{border-top:3px solid var(--blue)}
.metrics b{font-size:44px}

/* 卡片：悬停上浮 + 顶部蓝条 */
.card{position:relative;overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .3s;z-index:2}
.card:hover{transform:translateY(-4px);border-color:var(--blue);box-shadow:0 14px 32px -14px rgba(10,26,51,.28)}
.card:hover:before{transform:scaleX(1)}

/* 方案卡：悬停上浮 + 描边高亮 */
.solution{transition:transform .3s,border-color .3s}
.solution:hover{transform:translateY(-4px);border-color:var(--blue)}

/* 新闻行：左侧蓝条 + 底色浮现 */
.news-row{position:relative;transition:background .2s,padding .2s}
.news-row:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--blue);transform:scaleY(0);transform-origin:top;transition:transform .22s}
.news-row:hover{background:var(--surface-1);padding-left:16px}
.news-row:hover:before{transform:scaleY(1)}

/* 按钮：微浮起 + 蓝光 */
.btn,.cta{transition:background .2s,border-color .2s,color .2s,transform .18s,box-shadow .2s}
.btn:hover,.cta:hover{transform:translateY(-1px);box-shadow:0 8px 18px -8px rgba(15,98,254,.45)}
.btn:active,.cta:active{transform:translateY(0);box-shadow:none}

/* CTA 条：深蓝渐变 + 细网格 */
.contact-band{position:relative;overflow:hidden;background:linear-gradient(118deg,var(--blue) 0%,var(--blue-60) 55%,var(--tech-navy) 135%)}
.contact-band:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 56px);pointer-events:none}
.contact-band .container{position:relative;z-index:1}

/* 滚动浮现（配合 app.js，仅在 JS 可用时启用） */
html.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .55s cubic-bezier(.2,.6,.2,1),transform .55s cubic-bezier(.2,.6,.2,1)}
html.js .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;padding:16px 24px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);gap:0}
  nav.open{display:flex}
  nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  nav a:after{display:none}
  .hamb{display:block}
  .cta.small{display:none}
  .cards,.solution-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .split,.product-detail,.contact-grid{grid-template-columns:1fr;gap:28px}
  .metrics .container{grid-template-columns:1fr 1fr}
  .metrics .container>div:first-child{grid-column:1/-1;border-right:0;border-bottom:1px solid var(--line);padding-right:0;padding-bottom:20px;margin-bottom:8px}
  .case{grid-template-columns:1fr}
  .case img{min-height:220px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .license-grid{grid-template-columns:1fr}
  .download{flex-direction:column;align-items:flex-start}
}
@media (max-width:620px){
  .container{width:min(var(--max),calc(100% - 32px))}
  .top{display:none}
  header{height:64px}
  nav{top:64px}
  .hero-inner{min-height:480px;padding:64px 0}
  .hero h1{font-size:34px}
  .hero p{font-size:16px}
  .actions{flex-direction:column;align-items:stretch}
  .actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head{display:block}
  .section-head p{margin-top:12px}
  .cards,.solution-grid,.feature-grid{grid-template-columns:1fr}
  .split img{height:240px}
  .metrics .container{grid-template-columns:1fr 1fr}
  .metrics b{font-size:30px}
  .news-row{grid-template-columns:90px 1fr}
  .news-row span{display:none}
  .contact-grid form{grid-template-columns:1fr;padding:20px}
  .contact-grid form>*{grid-column:1}
  .article{grid-template-columns:1fr;gap:6px}
  .article time{padding-top:0}
  .foot-grid{grid-template-columns:1fr}
  .subhero{padding:44px 0}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}