:root{
  --blue:#1668ff; --blue-d:#0a4bd6; --blue-l:#4d94ff; --cyan:#2fd0e8;
  --ink:#0c1a33; --ink-2:#3a4a63; --ink-3:#6b7a92;
  --bg:#ffffff; --bg-alt:#f4f8ff; --line:#e3ecfb;
  --grad:linear-gradient(135deg,#2f7bff 0%,#1668ff 45%,#1fb6e0 100%);
  --grad-soft:linear-gradient(135deg,#eaf2ff 0%,#e6f7fb 100%);
  --shadow:0 12px 40px rgba(22,104,255,.10);
  --shadow-lg:0 24px 64px rgba(22,104,255,.16);
  --r:18px; --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;background:rgba(255,255,255,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:0 4px 24px rgba(22,104,255,.07)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:800;letter-spacing:.5px;box-shadow:0 6px 18px rgba(22,104,255,.35)}
.logo-text{font-size:17px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:14.5px;color:var(--ink-2);font-weight:500;transition:.2s;position:relative}
.nav-links a:hover{color:var(--blue)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--grad);border-radius:2px;transition:.25s}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{background:var(--grad);color:#fff!important;padding:9px 20px;border-radius:30px;font-weight:600;box-shadow:0 6px 18px rgba(22,104,255,.3)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(22,104,255,.4)}
.burger{display:none;background:none;border:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* HERO */
.hero{position:relative;padding:150px 0 90px;overflow:hidden;background:linear-gradient(180deg,#f7faff 0%,#ffffff 100%)}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.orb-1{width:520px;height:520px;background:radial-gradient(circle,#7db4ff,transparent 70%);top:-160px;right:-100px;animation:float 14s ease-in-out infinite}
.orb-2{width:420px;height:420px;background:radial-gradient(circle,#8ee7f5,transparent 70%);bottom:-140px;left:-120px;animation:float 18s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-30px)}}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);color:var(--blue);
  padding:7px 16px;border-radius:30px;font-size:13px;font-weight:600;box-shadow:0 4px 14px rgba(22,104,255,.08);margin-bottom:22px}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(47,208,232,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(47,208,232,.2)}50%{box-shadow:0 0 0 8px rgba(47,208,232,.05)}}
.hero h1{font-size:clamp(34px,4.4vw,54px);line-height:1.18;font-weight:800;letter-spacing:-.5px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:.62em;display:inline-block;margin-top:8px}
.hero-lead{margin-top:22px;font-size:16.5px;color:var(--ink-2);max-width:560px}
.hero-lead strong{color:var(--ink);font-weight:700}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:32px;font-size:15px;
  font-weight:600;cursor:pointer;border:none;transition:.28s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 28px rgba(22,104,255,.32)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(22,104,255,.44)}
.btn-ghost{background:#fff;color:var(--blue);border:1.5px solid var(--line);box-shadow:var(--shadow)}
.btn-ghost:hover{border-color:var(--blue-l);transform:translateY(-3px)}
.btn-sm{padding:11px 24px;font-size:14px}
.btn-block{width:100%}
.hero-stats{display:flex;gap:44px;margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.hero-stats b{font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;line-height:1.1}
.hero-stats b::after{content:"+";font-size:.7em}
.hero-stats span{font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
/* 模拟系统工作台 */
.app-mock{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);position:relative;z-index:2}
.app-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;background:#f6f9ff;border-bottom:1px solid var(--line)}
.ab-dot{width:11px;height:11px;border-radius:50%}
.ab-dot.r{background:#ff5f57}.ab-dot.y{background:#febc2e}.ab-dot.g{background:#28c840}
.ab-title{margin-left:10px;font-size:12.5px;color:var(--ink-3);font-weight:600}
.app-body{display:grid;grid-template-columns:150px 1fr;min-height:322px}
.app-side{background:linear-gradient(180deg,#0f2a5c,#123a8a);padding:16px 12px;display:flex;flex-direction:column;gap:6px}
.as-item{display:flex;align-items:center;gap:9px;color:rgba(255,255,255,.68);font-size:12.5px;padding:9px 11px;border-radius:9px;transition:.25s;cursor:default}
.as-item i{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.7}
.as-item.on{background:rgba(255,255,255,.16);color:#fff;font-weight:600}
.app-main{padding:16px;display:flex;flex-direction:column;gap:13px;background:#fbfdff}
.am-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 12px}
.kpi b{display:block;font-size:18px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.kpi b.up{background:none;color:#e5484d;-webkit-text-fill-color:#e5484d}
.kpi span{font-size:11px;color:var(--ink-3)}
.am-chart{background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 14px}
.am-chart-hd{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--ink-2);font-weight:600;margin-bottom:12px}
.am-chart-hd em{font-style:normal;font-size:10.5px;color:#12a150;background:#e8f8ef;padding:2px 9px;border-radius:20px;font-weight:700}
.bars{display:flex;align-items:flex-end;gap:10px;height:78px}
.bars i{flex:1;height:var(--h);background:var(--grad);border-radius:6px 6px 3px 3px;animation:grow 1.1s cubic-bezier(.2,.8,.3,1) both}
.bars i:nth-child(2){animation-delay:.08s}.bars i:nth-child(3){animation-delay:.16s}
.bars i:nth-child(4){animation-delay:.24s}.bars i:nth-child(5){animation-delay:.32s}
.bars i:nth-child(6){animation-delay:.4s}.bars i:nth-child(7){animation-delay:.48s}
@keyframes grow{from{height:0;opacity:.4}to{height:var(--h);opacity:1}}
.am-tasks{display:flex;flex-direction:column;gap:7px}
.task{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 13px;font-size:12.5px;color:var(--ink-2)}
.task em{margin-left:auto;font-style:normal;font-size:11px;font-weight:700;color:var(--blue);background:var(--grad-soft);padding:3px 10px;border-radius:20px}
.tk-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);flex-shrink:0;box-shadow:0 0 0 4px rgba(47,208,232,.16);animation:pulse 2.2s infinite}
.mock-float{position:absolute;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow-lg);
  padding:9px 13px;display:flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;color:var(--ink);z-index:3;animation:float 6s ease-in-out infinite}
.mock-float img{width:52px;height:34px;object-fit:cover;border-radius:7px}
.mf-1{top:-20px;right:-14px;animation-delay:.5s}
.mf-2{bottom:-20px;left:-14px;animation-delay:1.4s}
.carousel{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);background:#0b1020;aspect-ratio:16/9.4}
.slide{position:absolute;inset:0;opacity:0;transform:scale(1.04);transition:opacity .8s,transform 1.2s}
.slide.active{opacity:1;transform:scale(1)}
.slide img{width:100%;height:100%;object-fit:cover}
.carousel-dots{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:3}
.carousel-dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:.3s}
.carousel-dots i.on{width:26px;border-radius:6px;background:#fff}

/* SECTION */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 56px}
.sec-tag{display:inline-block;background:var(--grad-soft);color:var(--blue);font-size:13.5px;font-weight:700;
  padding:6px 18px;border-radius:30px;margin-bottom:16px;letter-spacing:.5px}
.sec-head h2,.opc-copy h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;line-height:1.3;letter-spacing:-.3px}
.sec-sub{margin-top:16px;color:var(--ink-2);font-size:15.5px}

/* 能力横幅滚动条 */
.ticker-sec{padding:40px 0 8px;background:linear-gradient(180deg,#ffffff,#f7faff)}
.ticker{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ticker-track{display:flex;gap:20px;width:max-content;animation:marquee 34s linear infinite}
.ticker-track img{height:74px;width:auto;border-radius:12px;box-shadow:0 6px 20px rgba(22,104,255,.10)}
.ticker:hover .ticker-track{animation-play-state:paused}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* OPC */
.opc{background:var(--grad);color:#fff;position:relative;overflow:hidden}
.opc::before{content:"";position:absolute;width:600px;height:600px;border-radius:50%;background:rgba(255,255,255,.06);top:-260px;right:-160px}
.opc-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative;z-index:1}
.opc .sec-tag{background:rgba(255,255,255,.16);color:#fff}
.opc-copy h2{color:#fff}
.opc-copy p{margin-top:20px;font-size:15.5px;color:rgba(255,255,255,.9)}
.opc-copy strong{color:#fff;font-weight:700;border-bottom:2px solid rgba(255,255,255,.5)}
.opc-tags{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.opc-tags span{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);padding:8px 20px;border-radius:30px;font-size:14px;font-weight:600}
.opc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stat-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:22px 16px;text-align:center;backdrop-filter:blur(6px)}
.stat-card b{font-size:28px;font-weight:800;display:block;line-height:1.1}
.stat-card b span{font-size:.62em}
.stat-card p{font-size:13px;color:rgba(255,255,255,.85);margin-top:6px}
.opc-note{grid-column:1/-1;font-size:13px;color:rgba(255,255,255,.78);line-height:1.7;margin-top:6px}

/* VALUE */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px 26px;position:relative;transition:.3s;overflow:hidden}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.value-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:.35s}
.value-card:hover::before{transform:scaleX(1)}
.vc-num{font-size:15px;font-weight:800;color:var(--blue-l);letter-spacing:1px;margin-bottom:14px}
.value-card h3{font-size:19px;font-weight:700;margin-bottom:12px}
.value-card p{color:var(--ink-2);font-size:14.5px}
.vc-highlight{background:var(--grad);border:none;color:#fff;display:flex;flex-direction:column;justify-content:center}
.vc-highlight h3{color:#fff;font-size:22px}
.vc-highlight p{color:rgba(255,255,255,.9);margin-bottom:20px}
.vc-highlight .btn{background:#fff;color:var(--blue);box-shadow:none;align-self:flex-start}
.vc-highlight .btn:hover{transform:translateY(-3px)}

/* MODULES */
.mod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mod-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;transition:.3s;display:flex;flex-direction:column}
.mod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#cfe0ff}
.mod-ico{width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;margin-bottom:18px;background:var(--grad-soft)}
.mod-ico img{width:100%;height:100%;object-fit:cover}
.mod-card h3{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--ink)}
.mod-card p{font-size:13.5px;color:var(--ink-2);flex:1}
.mod-card ul{list-style:none;display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.mod-card li{font-size:12px;color:var(--blue);background:var(--grad-soft);padding:4px 11px;border-radius:20px;font-weight:600}
.mod-extra{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px}
.me-item{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;transition:.3s}
.me-item:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.me-item img{width:64px;height:44px;object-fit:cover;border-radius:9px;flex-shrink:0}
.me-item h4{font-size:14.5px;font-weight:700}
.me-item p{font-size:12.5px;color:var(--ink-3);line-height:1.5;margin-top:2px}

/* FLOW */
.flow-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px;align-items:stretch}
.flow-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px 26px;transition:.3s}
.flow-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.flow-ico{font-size:34px;margin-bottom:16px}
.flow-card h3{font-size:20px;font-weight:700}
.flow-role{font-size:13.5px;color:var(--blue);font-weight:600;margin:8px 0 18px;padding-bottom:16px;border-bottom:1px dashed var(--line)}
.flow-card ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.flow-card li{font-size:13.5px;color:var(--ink-2);padding-left:22px;position:relative}
.flow-card li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--grad)}
.flow-center{background:var(--grad);border:none;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center}
.flow-core{width:150px;height:150px;border-radius:50%;background:rgba(255,255,255,.14);border:2px dashed rgba(255,255,255,.4);
  display:flex;flex-direction:column;align-items:center;justify-content:center;margin-bottom:20px;animation:spin 22s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.flow-core span{font-size:13px;opacity:.85}
.flow-core strong{font-size:22px;font-weight:800}
.flow-core-note{font-size:14px;color:rgba(255,255,255,.9)}
.web-bar{display:flex;gap:22px;align-items:center;background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r);
  padding:28px 32px;margin-top:24px}
.web-bar-ico{font-size:38px;flex-shrink:0}
.web-bar h3{font-size:19px;font-weight:700}
.web-bar p{font-size:14px;color:var(--ink-2);margin-top:6px}

/* INDUSTRIES */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ind-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 24px;transition:.3s;position:relative;overflow:hidden}
.ind-card::after{content:"";position:absolute;right:-30px;bottom:-30px;width:90px;height:90px;border-radius:50%;background:var(--grad-soft);transition:.35s}
.ind-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.ind-card:hover::after{transform:scale(1.5)}
.ind-card h4{font-size:17px;font-weight:700;margin-bottom:12px;position:relative;z-index:1}
.ind-card h4::before{content:"";display:inline-block;width:6px;height:18px;background:var(--grad);border-radius:3px;margin-right:10px;vertical-align:-3px}
.ind-card p{font-size:14px;color:var(--ink-2);position:relative;z-index:1}

/* OEM */
.oem{background:linear-gradient(180deg,#f7faff,#ffffff)}
.oem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.oem-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 24px;text-align:center;transition:.3s}
.oem-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#cfe0ff}
.oem-ico{font-size:36px;margin-bottom:16px}
.oem-card h3{font-size:17px;font-weight:700;margin-bottom:12px}
.oem-card p{font-size:13.5px;color:var(--ink-2)}
.oem-banner{margin-top:34px;background:var(--grad);color:#fff;text-align:center;padding:26px;border-radius:var(--r);
  font-size:21px;font-weight:700;letter-spacing:.5px;box-shadow:var(--shadow-lg)}
.oem-banner strong{font-size:1.15em}

/* JOIN */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 26px;transition:.3s;position:relative}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.step-n{font-size:40px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;margin-bottom:14px}
.step h4{font-size:17px;font-weight:700;margin-bottom:10px}
.step p{font-size:13.5px;color:var(--ink-2)}

/* CTA */
.cta{background:var(--grad);padding:96px 0;color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;width:700px;height:700px;border-radius:50%;background:rgba(255,255,255,.07);bottom:-380px;left:-200px}
.cta::after{content:"";position:absolute;width:400px;height:400px;border-radius:50%;background:rgba(255,255,255,.06);top:-200px;right:-100px}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.cta-copy h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;line-height:1.35}
.cta-copy p{margin-top:18px;color:rgba(255,255,255,.9);font-size:15.5px;max-width:440px}
.cta-form{background:#fff;border-radius:22px;padding:34px 30px;box-shadow:var(--shadow-lg)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:11px;padding:12px 15px;font-size:14.5px;
  font-family:inherit;color:var(--ink);transition:.25s;background:#fbfdff;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(22,104,255,.1)}
.field input.err{border-color:#ff5a5a;background:#fff6f6}
.form-tip{font-size:13px;margin-top:12px;text-align:center;min-height:18px}
.form-tip.ok{color:#12a150}
.form-tip.bad{color:#e5484d}

/* FOOTER */
.footer{background:#0c1a33;color:#fff;padding:60px 0 0}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;gap:14px;max-width:420px}
.footer-brand h4{font-size:17px;font-weight:700}
.footer-brand p{font-size:13.5px;color:rgba(255,255,255,.6);margin-top:8px;line-height:1.7}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;align-items:flex-start}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:.2s}
.footer-links a:hover{color:#fff}
.footer-bottom{padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}

/* REVEAL —— 默认可见，JS 就绪后才启用动画，避免无 JS / 爬虫场景内容不可见 */
.reveal{opacity:1;transform:none}
html.js-ready .reveal{opacity:0;transform:translateY(26px);
  transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1!important;transform:none!important}
@media(prefers-reduced-motion:reduce){
  html.js-ready .reveal{opacity:1;transform:none;transition:none}
}

/* RESPONSIVE */
@media(max-width:1024px){
  .hero-inner,.opc-grid,.cta-inner{grid-template-columns:1fr;gap:44px}
  .mod-grid,.value-grid,.ind-grid,.oem-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .mod-extra{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:1fr}
  .opc-stats{max-width:520px}
}
@media(max-width:680px){
  .nav-links{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;gap:0;
    padding:10px 24px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-140%);transition:.35s;align-items:stretch}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-cta{text-align:center;margin-top:14px}
  .burger{display:flex}
  .mod-grid,.value-grid,.ind-grid,.oem-grid,.steps,.mod-extra{grid-template-columns:1fr}
  .hero{padding:120px 0 70px}
  .section{padding:66px 0}
  .hero-stats{gap:26px}
  .hero-stats b{font-size:27px}
  .web-bar{flex-direction:column;text-align:center;gap:14px}
  .opc-stats{grid-template-columns:1fr 1fr}
}