:root{
  --ink:#0b1f33;
  --ink-2:#12324c;
  --ink-3:#1b4a63;
  --teal:#16b8a6;
  --teal-deep:#0e8f82;
  --teal-soft:#e6f7f4;
  --amber:#f5a524;
  --amber-soft:#fff4de;
  --paper:#f6f8fb;
  --white:#ffffff;
  --muted:#5c6d7e;
  --muted-2:#8494a4;
  --line:#e3eaf1;
  --shadow:0 18px 50px rgba(11,31,51,.10);
  --shadow-lg:0 30px 80px rgba(11,31,51,.18);
  --radius:22px;
  --container:1180px;
  --header-h:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;font-weight:700}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.soft{background:var(--paper)}
.section.dark{background:var(--ink);color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--teal-deep);margin-bottom:16px;
}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--amber);display:inline-block}
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{font-size:clamp(28px,3.4vw,40px);color:var(--ink);margin-bottom:14px}
.section-head p{font-size:16.5px;color:var(--muted);max-width:680px;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center p{margin-left:auto;margin-right:auto}
.section.dark .section-head h2{color:#fff}
.section.dark .section-head p{color:rgba(255,255,255,.72)}
.section.dark .eyebrow{color:#7ee8da}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-size:14.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:.25s ease;white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--teal);color:#04231f;box-shadow:0 10px 24px rgba(22,184,166,.28)}
.btn-primary:hover{background:#1fd0bc;transform:translateY(-2px);box-shadow:0 16px 32px rgba(22,184,166,.34)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#153b57;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal-deep)}
.btn-amber{background:var(--amber);color:#2b1a00;box-shadow:0 10px 24px rgba(245,165,36,.3)}
.btn-amber:hover{background:#ffb63a;transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:13px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--header-h);
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(11,31,51,.06);
  transition:.3s ease;
}
.site-header.scrolled{box-shadow:0 10px 30px rgba(11,31,51,.08)}
.nav-wrap{height:100%;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;color:var(--teal);display:flex}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:19px;letter-spacing:.04em;color:var(--ink)}
.brand-text small{font-size:8.5px;letter-spacing:.18em;color:var(--muted-2);font-weight:600;margin-top:2px}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{
  padding:10px 13px;border-radius:10px;font-size:14px;font-weight:600;color:#33475b;
  transition:.2s;position:relative;white-space:nowrap;
}
.nav a:hover{color:var(--teal-deep);background:var(--teal-soft)}
.nav a.active{color:var(--teal-deep)}
.nav a.active:after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:var(--teal);border-radius:2px;
}
.nav-cta{flex:0 0 auto}
.lang-switch{
  flex:0 0 auto;font-size:11.5px;font-weight:800;letter-spacing:.08em;
  padding:7px 11px;border:1px solid var(--line);border-radius:999px;color:var(--muted);
  transition:.2s;margin-left:4px;
}
.lang-switch:hover{border-color:var(--teal);color:var(--teal-deep);background:var(--teal-soft)}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;
  align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:.2s}
.menu-toggle span:before{top:-6px}.menu-toggle span:after{top:6px}
.menu-toggle.open span{background:transparent}
.menu-toggle.open span:before{top:0;transform:rotate(45deg)}
.menu-toggle.open span:after{top:0;transform:rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 500px at 12% 0%, rgba(22,184,166,.22), transparent 62%),
    radial-gradient(700px 500px at 100% 20%, rgba(245,165,36,.12), transparent 60%),
    linear-gradient(150deg,#0a1d30 0%,#0d2a42 55%,#0d3346 100%);
  color:#fff;
  padding:84px 0 76px;
}
.hero:before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.55), transparent 85%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-.03em;margin-bottom:20px}
.hero h1 em{font-style:normal;color:#7ee8da}
.hero-lead{font-size:17px;line-height:1.9;color:rgba(255,255,255,.75);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12)}
.hero-stat b{display:block;font-size:24px;line-height:1.2;color:#fff}
.hero-stat span{font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.04em}
.hero-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}
.hero-collage{position:relative;width:100%;max-width:520px;aspect-ratio:1/1;margin:0 auto}
.collage-screen{
  position:absolute;left:4%;top:4%;width:72%;
  border:7px solid #0b1f33;border-radius:15px;overflow:hidden;background:#0b1f33;
  box-shadow:0 30px 60px rgba(0,0,0,.35);transform:rotate(-2deg);
}
.collage-screen img{width:100%;display:block}
.collage-device{
  position:absolute;left:-1%;bottom:2%;width:50%;background:#fff;border-radius:20px;
  padding:9px;box-shadow:0 26px 45px rgba(0,0,0,.28);transform:rotate(-3deg);
}
.collage-device img{width:100%;display:block;border-radius:14px}
.collage-phone{
  position:absolute;right:1%;bottom:7%;width:28%;
  border:5px solid #0b1f33;border-radius:20px;overflow:hidden;background:#0b1f33;
  box-shadow:0 24px 40px rgba(0,0,0,.35);transform:rotate(4deg);
}
.collage-phone img{width:100%;display:block}
.device-stage{
  width:min(100%,430px);aspect-ratio:1/1.02;
  background:linear-gradient(150deg,#fff 0%,#eef7f6 58%,#e2f2ef 100%);
  border-radius:34px;padding:26px;position:relative;
  box-shadow:0 40px 90px rgba(0,0,0,.35);
  transform:rotate(-2deg);
  display:flex;align-items:center;justify-content:center;
}
.device-stage:after{content:"";position:absolute;inset:14px;border:1px solid rgba(11,31,51,.06);border-radius:24px;pointer-events:none}
.device-stage img{max-height:100%;width:auto;object-fit:contain;filter:drop-shadow(0 24px 26px rgba(11,31,51,.18))}
.float-card{
  position:absolute;background:rgba(255,255,255,.94);color:var(--ink);
  border-radius:16px;padding:14px 16px;box-shadow:0 20px 50px rgba(0,0,0,.28);
  backdrop-filter:blur(10px);min-width:158px;
}
.float-card .fc-label{font-size:10.5px;color:var(--muted-2);letter-spacing:.08em;margin-bottom:4px}
.float-card .fc-value{font-size:18px;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.float-card .fc-sub{font-size:10.5px;color:var(--teal-deep);font-weight:700;margin-top:3px}
.float-a{left:-12px;bottom:26px;animation:float 6s ease-in-out infinite}
.float-b{right:-10px;top:12px;animation:float 7s ease-in-out infinite reverse}
.float-c{display:none}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ---------- generic cards ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:.3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe3e0}
.card h3{font-size:18px;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--muted);margin:0}
.num-badge{
  width:38px;height:38px;border-radius:12px;background:var(--teal-soft);color:var(--teal-deep);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;margin-bottom:16px;
}
.num-badge.amber{background:var(--amber-soft);color:#b06b00}

/* ---------- product cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;
  display:flex;flex-direction:column;transition:.3s ease;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe3e0}
.product-thumb{
  height:190px;border-radius:17px;overflow:hidden;
  background:linear-gradient(150deg,#f2f7fa,#e8f5f2);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.product-thumb img{max-width:88%;max-height:86%;object-fit:contain;transition:transform .5s ease}
.product-card:hover .product-thumb img{transform:scale(1.04)}
.product-thumb.screen img{max-width:none;width:100%;height:100%;object-fit:cover;object-position:top left}
.product-thumb.contain{background:#f7f9fb}
.product-thumb.contain img{max-width:94%;max-height:94%}
.mini-phone{
  width:104px;border:4px solid #0b1f33;border-radius:16px;overflow:hidden;background:#0b1f33;
  box-shadow:0 14px 28px rgba(11,31,51,.25);
}
.mini-phone img{width:100%;display:block}
.product-body{padding:16px 4px 2px;display:flex;flex-direction:column;flex:1}
.product-tag{font-size:10.5px;font-weight:800;letter-spacing:.12em;color:var(--teal-deep);margin-bottom:7px}
.product-card h3{font-size:18px;margin-bottom:7px}
.product-card p{font-size:13.5px;color:var(--muted);line-height:1.65;margin-bottom:16px}
.product-link{margin-top:auto;font-size:13px;font-weight:800;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.product-link:after{content:"→";color:var(--teal);transition:transform .2s}
.product-card:hover .product-link:after{transform:translateX(4px)}

/* ---------- system showcase ---------- */
.showcase-wrap{
  background:#fff;border:1px solid var(--line);border-radius:28px;
  padding:24px;box-shadow:var(--shadow);
}
.showcase-grid{display:grid;grid-template-columns:1.45fr .55fr;gap:24px;align-items:center}
.showcase-main .screen-frame img{width:100%;display:block}
.showcase-side .phone-frame{width:206px;margin:0 auto}
.showcase-caption{font-size:12px;color:var(--muted-2);text-align:center;margin-top:11px;letter-spacing:.02em}
.showcase-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.showcase-thumb{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s}
.showcase-thumb:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe3e0}
.showcase-thumb img{width:100%;height:170px;object-fit:cover;object-position:top left;display:block}
.showcase-thumb .cap{font-size:12px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line)}

/* ---------- smart terminals ---------- */
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.device-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;transition:.25s}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe3e0}
.device-art{
  height:230px;border-radius:16px;background:linear-gradient(155deg,#eef7f6,#e1edf4);
  display:flex;align-items:flex-end;justify-content:center;overflow:hidden;padding:8px 8px 0;
}
.device-art img{height:96%;width:auto;display:block}
.device-card h3{font-size:16.5px;margin:14px 2px 5px}
.device-card p{font-size:12.5px;color:var(--muted);margin:0 2px 12px;line-height:1.6}
.device-tags{display:flex;flex-wrap:wrap;gap:6px}
.device-tags span{font-size:10.5px;color:var(--teal-deep);background:var(--teal-soft);border:1px solid #cbe4e1;border-radius:999px;padding:3px 9px}

/* ---------- chain ---------- */
.chain{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;position:relative}
.chain:before{
  content:"";position:absolute;left:6%;right:6%;top:46px;height:1px;
  background:linear-gradient(90deg,transparent,#bcded9,transparent);
}
.chain-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 16px;text-align:center;z-index:1}
.chain-step .n{
  width:32px;height:32px;border-radius:50%;margin:0 auto 12px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;
}
.chain-step b{display:block;font-size:14.5px;margin-bottom:5px}
.chain-step span{font-size:11.5px;color:var(--muted);line-height:1.5;display:block}

/* ---------- scenarios ---------- */
.scenario-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
.scenario{
  position:relative;min-height:280px;border-radius:24px;overflow:hidden;
  background:linear-gradient(145deg,#0f3550,#0b1f33);color:#fff;padding:26px;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.scenario img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38;filter:saturate(.85)}
.scenario:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(7,22,34,.9),rgba(7,22,34,.1))}
.scenario > *{position:relative;z-index:1}
.scenario .tag{font-size:10.5px;font-weight:800;letter-spacing:.14em;color:#7ee8da;margin-bottom:8px}
.scenario h3{font-size:21px;margin-bottom:8px}
.scenario p{font-size:13px;color:rgba(255,255,255,.72);margin:0;max-width:280px}

/* ---------- hardware strip ---------- */
.hw-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.hw-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;display:flex;gap:14px;align-items:center;transition:.25s}
.hw-item:hover{border-color:#cfe3e0;transform:translateY(-3px);box-shadow:var(--shadow)}
.hw-item .hw-img{width:82px;height:70px;border-radius:12px;background:#f3f7fa;display:flex;align-items:center;justify-content:center;flex:0 0 auto;overflow:hidden}
.hw-item .hw-img img{max-width:92%;max-height:92%;object-fit:contain}
.hw-item b{display:block;font-size:13.5px;margin-bottom:3px}
.hw-item span{font-size:11.5px;color:var(--muted);line-height:1.45;display:block}

/* ---------- CTA ---------- */
.cta-band{
  background:
    radial-gradient(600px 280px at 88% 10%, rgba(22,184,166,.22), transparent 60%),
    linear-gradient(135deg,#0b1f33,#123c4f);
  color:#fff;border-radius:28px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.68);margin:0;font-size:14.5px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex:0 0 auto}
.cta-phone{display:flex;flex-direction:column;gap:4px}
.cta-phone small{font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.12em}
.cta-phone b{font-size:22px;letter-spacing:.01em}

/* ---------- footer ---------- */
.footer{background:#071724;color:#9fb0c0;padding:56px 0 22px;font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer .brand-text b{color:#fff}
.footer .brand-text small{color:rgba(255,255,255,.4)}
.footer p{color:#8798a8;line-height:1.8;margin:14px 0 0;max-width:330px}
.footer h4{color:#fff;font-size:13px;letter-spacing:.08em;margin-bottom:14px}
.footer li{margin-bottom:9px}
.footer a:hover{color:#7ee8da}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:18px;font-size:12px;color:#6f8192}
.footer-bottom a{color:#8798a8}

/* ---------- page hero ---------- */
.page-hero{
  background:
    radial-gradient(700px 360px at 15% 0%, rgba(22,184,166,.18), transparent 65%),
    linear-gradient(150deg,#0a1d30,#0d2c44 70%,#0d3548);
  color:#fff;padding:78px 0 62px;position:relative;overflow:hidden;
}
.page-hero:before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:60px 60px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.6),transparent 90%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{font-size:11.5px;color:rgba(255,255,255,.5);margin-bottom:16px;letter-spacing:.05em}
.breadcrumb a:hover{color:#7ee8da}
.page-hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.2;max-width:820px;margin-bottom:14px}
.page-hero h1 em{font-style:normal;color:#7ee8da}
.page-hero p{font-size:16px;color:rgba(255,255,255,.7);max-width:700px;margin:0 0 22px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:11.5px;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 12px;background:rgba(255,255,255,.04)}

/* ---------- feature lists ---------- */
.feature-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;transition:.25s}
.feature-card:hover{border-color:#cfe3e0;box-shadow:var(--shadow);transform:translateY(-3px)}
.feature-card h3{font-size:16.5px;margin-bottom:7px}
.feature-card p{font-size:13.5px;color:var(--muted);margin:0}
.check-list li{position:relative;padding-left:22px;font-size:14px;color:#405365;margin-bottom:10px}
.check-list li:before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--teal)}

/* ---------- phone / screenshot frame ---------- */
.phone-wrap{display:flex;justify-content:center;align-items:center}
.phone-frame{
  width:238px;border:9px solid #0b1f33;border-radius:34px;overflow:hidden;
  box-shadow:0 30px 60px rgba(11,31,51,.3);background:#0b1f33;position:relative;
}
.phone-frame:after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:82px;height:17px;background:#0b1f33;border-radius:0 0 12px 12px}
.phone-frame img{width:100%;display:block}
.screen-frame{border:1px solid #d8e3eb;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);background:#fff}
.screen-frame img{width:100%;display:block}

/* ---------- dmp mock ---------- */
.dmp-mock{background:#0d2338;border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:16px;color:#dbe7ef;box-shadow:var(--shadow-lg)}
.dmp-mock .bar{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#8fa6b8;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:10px;margin-bottom:10px}
.dmp-mock .bar b{color:#fff;font-size:12px}
.dmp-mock .row{display:flex;align-items:center;gap:9px;padding:9px 6px;border-bottom:1px solid rgba(255,255,255,.06);font-size:11.5px}
.dmp-mock .row:last-child{border-bottom:0}
.dmp-mock .dot{width:7px;height:7px;border-radius:50%;background:#16b8a6;box-shadow:0 0 0 3px rgba(22,184,166,.15);flex:0 0 auto}
.dmp-mock .dot.warn{background:#f5a524;box-shadow:0 0 0 3px rgba(245,165,36,.15)}
.dmp-mock .dot.off{background:#687d8d;box-shadow:none}
.dmp-mock .row b{margin-left:auto;color:#7ee8da;font-size:10.5px}
.dmp-mock .row .name{color:#c7d6e1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- tables ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;background:#fff}
.spec-table th{background:var(--ink);color:#fff;text-align:left;padding:13px 16px;font-size:12px;letter-spacing:.06em}
.spec-table td{border-bottom:1px solid var(--line);padding:12px 16px;color:#405365;vertical-align:top}
.spec-table tr:nth-child(even) td{background:#f8fafc}
.spec-table td:first-child{font-weight:700;color:var(--ink);width:22%}
.table-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.float-a,.float-b,.float-c{animation:none}}

/* ---------- responsive ---------- */
@media (max-width:1050px){
  .hero-grid{grid-template-columns:1fr;gap:42px}
  .hero-visual{min-height:440px}
  .device-stage{width:min(86%,390px)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hw-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .scenario-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(18px);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 20px 20px;border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s;
    box-shadow:0 20px 40px rgba(11,31,51,.12);
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:12px 14px;font-size:15px}
  .nav a.active:after{display:none}
  .nav a.active{background:var(--teal-soft)}
  .nav-cta{display:none}
  .menu-toggle{display:flex}
}
@media (max-width:760px){
  :root{--header-h:66px}
  body{font-size:15px}
  .section{padding:62px 0}
  .section.tight{padding:48px 0}
  .container{padding:0 18px}
  .hero{padding:52px 0 56px}
  .hero h1{font-size:clamp(31px,9vw,44px)}
  .hero-lead{font-size:15px}
  .hero-stats{gap:18px 22px}
  .hero-stat b{font-size:21px}
  .hero-visual{min-height:360px}
  .device-stage{width:min(92%,330px);padding:18px;border-radius:24px}
  .collage-device{left:0}
  .collage-phone{right:0}
  .float-card{padding:11px 13px;border-radius:13px;min-width:130px}
  .float-card .fc-value{font-size:15px}
  .float-a,.float-b,.float-c{display:none}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:26px}
  .grid-2,.grid-3,.grid-4,.product-grid,.scenario-grid,.hw-strip{grid-template-columns:1fr}
  .product-thumb{height:210px}
  .chain{grid-template-columns:1fr 1fr;gap:10px}
  .chain:before{display:none}
  .showcase-wrap{padding:16px;border-radius:20px}
  .showcase-grid{grid-template-columns:1fr;gap:20px}
  .showcase-side .phone-frame{width:190px}
  .showcase-thumbs{grid-template-columns:1fr}
  .device-grid{grid-template-columns:1fr}
  .device-art{height:240px}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start;border-radius:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .page-hero{padding:52px 0 44px}
  .page-hero h1{font-size:30px}
  .spec-table{font-size:12px}
  .spec-table th,.spec-table td{padding:10px 11px}
  .spec-table td:first-child{width:30%}
}

@media (max-width:400px){
  .nav-wrap{gap:13px}
  .brand-mark{width:32px;height:32px}
  .brand-text b{font-size:17px}
  .brand-text small{display:none}
  .lang-switch{padding:6px 8px;font-size:10.5px}
}