/* ==========================================================================
   赛腾 AI · SAITENG AI  —  Global stylesheet
   Design language: deep-space navy + electric blue, engineering precision
   ========================================================================== */

:root{
  --bg:#05070F;
  --bg-soft:#080D1A;
  --bg-elev:#0B1222;
  --panel:rgba(255,255,255,.034);
  --panel-2:rgba(255,255,255,.055);
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.26);
  --text:#E9EFFB;
  --text-2:#B7C3D8;
  --muted:#8A98B0;
  --brand:#3B7BFF;
  --brand-soft:#6FA6FF;
  --brand-2:#5FD0FF;
  --brand-dim:rgba(59,123,255,.14);
  --grad:linear-gradient(100deg,#2F6BFF 0%,#4E9BFF 45%,#5FD0FF 100%);
  --grad-soft:linear-gradient(180deg,rgba(59,123,255,.18),rgba(59,123,255,0));
  --shadow:0 24px 60px -24px rgba(0,12,40,.9);
  --r-s:10px; --r-m:16px; --r-l:24px; --r-xl:32px;
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 78% -10%,rgba(47,107,255,.16),transparent 70%),
    radial-gradient(700px 420px at 6% 8%,rgba(95,208,255,.07),transparent 72%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.02em;color:#fff}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(59,123,255,.35);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px;position:relative;z-index:1}
.wrap.narrow{max-width:940px}
.section{padding:clamp(58px,6.6vw,98px) 0;position:relative;z-index:1}
.section--tight{padding:clamp(48px,5vw,72px) 0}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.018),transparent 55%)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* ---------- Typography helpers ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--brand-soft);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--brand);opacity:.85}
.eyebrow.center::after{content:"";width:26px;height:1px;background:var(--brand);opacity:.85}
.h2{font-size:clamp(1.85rem,3.3vw,2.85rem);letter-spacing:-.025em}
.split .h2,.slpit .h2,.contact-grid .h2{font-size:clamp(1.55rem,2.35vw,2.1rem)}
.h3{font-size:clamp(1.15rem,1.6vw,1.4rem)}
.lead{color:var(--text-2);font-size:clamp(1rem,1.15vw,1.09rem);line-height:1.85;max-width:62ch}
.muted{color:var(--muted)}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-head{max-width:820px;margin-bottom:clamp(38px,4.4vw,60px)}
.section-head.center{margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.28s var(--ease);white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .28s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 30px -12px rgba(47,107,255,.85)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px -12px rgba(47,107,255,.95)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(140,170,255,.5);background:rgba(255,255,255,.06);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-lg{height:56px;padding:0 32px;font-size:16px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-soft);font-size:14px;font-weight:600}
.link-arrow svg{width:15px;height:15px;transition:transform .3s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Top bar ---------- */
.topbar{
  background:#03060D;border-bottom:1px solid rgba(140,170,255,.08);
  font-size:12.5px;color:var(--muted);position:relative;z-index:60;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:22px;min-width:0}
.topbar span{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.topbar svg{width:13px;height:13px;opacity:.7}
.topbar a:hover{color:var(--text)}
.dot-live{width:6px;height:6px;border-radius:50%;background:#37E6A0;box-shadow:0 0 0 3px rgba(55,230,160,.15)}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:50;background:rgba(5,7,15,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;transition:.3s var(--ease);
}
.header.is-stuck{background:rgba(5,7,15,.92);border-bottom-color:var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}

.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:36px;height:36px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.05}
.logo-text b{font-size:17px;letter-spacing:.02em;color:#fff;font-weight:700}
.logo-text small{font-family:var(--mono);font-size:9.5px;letter-spacing:.28em;color:var(--muted);margin-top:5px}

.nav{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:8px;
  font-size:14.5px;color:var(--text-2);transition:.22s;font-weight:500;
}
.nav-link:hover,.nav-item:hover>.nav-link{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.nav-link .chev{width:11px;height:11px;opacity:.55;transition:transform .25s}
.nav-item:hover .chev{transform:rotate(180deg)}

.dropdown{
  position:absolute;top:calc(100% + 10px);left:0;min-width:250px;padding:10px;
  background:rgba(10,16,30,.97);border:1px solid var(--line);border-radius:14px;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.9);backdrop-filter:blur(20px);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.24s var(--ease);
}
.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:10px 13px;border-radius:9px;transition:.2s}
.dropdown a:hover{background:rgba(59,123,255,.14)}
.dropdown a b{display:block;font-size:14px;color:#fff;font-weight:600}
.dropdown a span{display:block;font-size:12px;color:var(--muted);margin-top:2px;line-height:1.5}

.header-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-phone{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:14px;color:var(--text);letter-spacing:.02em}
.header-phone svg{width:15px;height:15px;color:var(--brand-soft)}

.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:11px;background:transparent;color:var(--text);align-items:center;justify-content:center;cursor:pointer}
.burger svg{width:20px;height:20px}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:70;background:rgba(3,6,13,.98);backdrop-filter:blur(20px);
  transform:translateX(100%);transition:.36s var(--ease);overflow-y:auto;padding:24px;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:11px;background:transparent;color:#fff;font-size:20px;cursor:pointer}
.drawer nav a{display:flex;justify-content:space-between;align-items:center;padding:16px 4px;border-bottom:1px solid var(--line);font-size:17px;color:var(--text)}
.drawer nav a small{font-family:var(--mono);font-size:11px;color:var(--muted)}
.drawer .btn{width:100%;margin-top:26px}

/* ---------- Hero (home) ---------- */
.hero{position:relative;min-height:clamp(600px,82vh,780px);display:flex;align-items:center;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 40%;transform:scale(1.04)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.82) 42%,rgba(5,7,15,.35) 72%,rgba(5,7,15,.6) 100%),
    linear-gradient(180deg,rgba(5,7,15,.55),transparent 30%,rgba(5,7,15,.95) 96%);
}
.hero-inner{padding:clamp(70px,9vw,110px) 0 clamp(50px,6vw,70px)}
.hero h1{font-size:clamp(2.3rem,5vw,4.05rem);line-height:1.12;letter-spacing:-.035em;max-width:16ch}
.hero h1 .grad-text{display:inline-block}
.hero-sub{margin-top:24px;font-size:clamp(1rem,1.3vw,1.15rem);color:var(--text-2);max-width:600px;line-height:1.85}
.hero-actions{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{font-size:12.5px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:rgba(255,255,255,.02)}
.tag b{color:var(--brand-2);font-weight:600}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:clamp(44px,5vw,64px);
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
}
.hero-stats div{background:rgba(6,10,20,.72);padding:22px 20px}
.hero-stats b{display:block;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.hero-stats span{display:block;font-size:12.5px;color:var(--muted);margin-top:6px}

/* scroll hint */
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-hint i{display:block;width:1px;height:36px;background:linear-gradient(180deg,var(--brand),transparent);animation:drop 2.2s infinite}
@keyframes drop{0%{opacity:0;transform:scaleY(.2)}40%{opacity:1}100%{opacity:0;transform:scaleY(1)}}

/* ---------- Page hero (sub pages) ---------- */
.page-hero{position:relative;padding:clamp(56px,7vw,92px) 0 clamp(46px,5vw,64px);overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .glow{position:absolute;width:820px;height:820px;right:-260px;top:-440px;background:radial-gradient(circle,rgba(47,107,255,.26),transparent 60%);filter:blur(90px);pointer-events:none}
.crumb{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--muted);margin-bottom:20px;text-transform:uppercase}
.crumb a:hover{color:var(--brand-soft)}
.crumb span{margin:0 8px;opacity:.5}
.page-hero h1{font-size:clamp(2rem,4vw,3.3rem);letter-spacing:-.03em;max-width:20ch}
.page-hero p{margin-top:20px;color:var(--text-2);font-size:clamp(1rem,1.2vw,1.1rem);max-width:64ch;line-height:1.85}
.page-hero .hero-actions{margin-top:32px}

/* ---------- Cards ---------- */
.card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-m);
  padding:28px;transition:.32s var(--ease);overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(95,208,255,.5),transparent);
  opacity:0;transition:.32s;
}
.card:hover{background:var(--panel-2);border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card h3{font-size:1.06rem;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted);line-height:1.8}
.card-num{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--brand-soft);margin-bottom:16px;display:block}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--grad-soft);border:1px solid rgba(95,160,255,.28);color:var(--brand-2);
}
.icon-box svg{width:21px;height:21px}

/* ---------- Path / timeline (5 steps) ---------- */
.path{position:relative;margin-top:10px}
.path::before{
  content:"";position:absolute;left:0;right:0;top:35px;height:1px;
  background:linear-gradient(90deg,rgba(59,123,255,.5),rgba(95,208,255,.28),rgba(59,123,255,.06));
}
.path-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{position:relative;padding-top:0}
.step-dot{
  width:70px;height:70px;border-radius:50%;display:grid;place-items:center;position:relative;
  background:radial-gradient(circle at 50% 30%,rgba(47,107,255,.28),rgba(8,13,26,.95));
  border:1px solid rgba(95,160,255,.35);margin-bottom:22px;transition:.3s var(--ease);
}
.step-dot svg{width:26px;height:26px;color:#CFE2FF}
.step-dot b{position:absolute;top:-6px;right:-6px;font-family:var(--mono);font-size:10px;background:var(--brand);color:#fff;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-weight:600;letter-spacing:0}
.step:hover .step-dot{transform:translateY(-4px) scale(1.03);border-color:rgba(95,208,255,.7);box-shadow:0 0 0 8px rgba(47,107,255,.07)}
.step h3{font-size:1.15rem;letter-spacing:.02em}
.step .en{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin:6px 0 10px;display:block}
.step p{font-size:13.5px;color:var(--muted);line-height:1.75}
.step ul{margin-top:12px;display:flex;flex-direction:column;gap:6px}
.step li{font-size:12.5px;color:var(--text-2);padding-left:14px;position:relative}
.step li::before{content:"";position:absolute;left:0;top:8px;width:4px;height:4px;border-radius:50%;background:var(--brand-2)}

/* ---------- Layer stack (ecosystem) ---------- */
.slpit{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,68px);align-items:center}
.stack{display:flex;flex-direction:column;gap:12px}
.layer{
  display:grid;grid-template-columns:170px 1fr;gap:22px;align-items:center;
  padding:20px 24px;border:1px solid var(--line);border-radius:14px;background:var(--panel);
  transition:.3s var(--ease);position:relative;overflow:hidden;
}
.layer::after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--grad);opacity:.55}
.layer:hover{background:var(--panel-2);transform:translateX(4px);border-color:var(--line-strong)}
.layer>div{min-width:0}
.layer-k{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:6px}
.layer-name{font-size:14.5px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.3}
.layer-name em{display:block;font-style:normal;font-family:var(--mono);font-size:10px;color:var(--brand-2);margin:5px 0 0;letter-spacing:.14em}
.layer p{font-size:13px;color:var(--muted);line-height:1.75;margin-top:0}
.stack-note{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.stack-note div{flex:1 1 240px;border:1px dashed var(--line-strong);border-radius:12px;padding:14px 16px;font-size:12.5px;color:var(--muted);background:rgba(59,123,255,.04)}
.stack-note b{display:block;color:#fff;font-size:13px;margin-bottom:3px}

.img-frame{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.img-frame:hover img{transform:scale(1.04)}
.img-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.75));pointer-events:none}
.img-frame.tall{aspect-ratio:4/5;min-height:440px}
.img-frame.wide{aspect-ratio:5/3}
.img-caption{position:absolute;left:22px;bottom:20px;z-index:2;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.72);text-transform:uppercase}

/* ---------- Products grid ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.prod{
  position:relative;border:1px solid var(--line);border-radius:var(--r-m);padding:26px 22px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:.32s var(--ease);overflow:hidden;display:flex;flex-direction:column;
}
.prod:hover{transform:translateY(-5px);border-color:rgba(95,160,255,.45);box-shadow:var(--shadow)}
.prod::after{
  content:"";position:absolute;inset:auto -40% -70% auto;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.35),transparent 70%);opacity:0;transition:.4s;
}
.prod:hover::after{opacity:1}
.prod-k{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--brand-soft);margin-bottom:14px}
.prod h3{font-size:1rem;line-height:1.45}
.prod p{font-size:13px;color:var(--muted);line-height:1.75;margin-top:10px}
.prod .meta{margin-top:auto;padding-top:16px;font-size:11.5px;color:rgba(183,195,216,.72);display:flex;gap:6px;flex-wrap:wrap}
.prod .meta i{font-style:normal;border:1px solid var(--line);border-radius:5px;padding:2px 7px}

/* ---------- Industry cards ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.ind{
  position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;
  transition:.4s var(--ease);isolation:isolate;
}
.ind img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1.1s var(--ease)}
.ind::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(5,7,15,.3) 0%,rgba(5,7,15,.62) 38%,rgba(5,7,15,.92) 72%,rgba(5,7,15,.99) 100%)}
.ind:hover img{transform:scale(1.06)}
.ind:hover{border-color:rgba(95,160,255,.45);transform:translateY(-4px)}
.ind-body{padding:26px 24px}
.ind-body .k{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--brand-2);text-transform:uppercase}
.ind-body h3{font-size:1.28rem;margin:8px 0 10px}
.ind-body p{font-size:13.5px;color:rgba(233,239,251,.84);line-height:1.7}
.ind-body ul{margin-top:14px;display:none;flex-direction:column;gap:5px}
.ind:hover .ind-body ul{display:flex}
.ind-body li{font-size:12.5px;color:rgba(233,239,251,.82);padding-left:13px;position:relative}
.ind-body li::before{content:"";position:absolute;left:0;top:8px;width:4px;height:4px;background:var(--brand-2);border-radius:50%}
.ind.span3{grid-column:span 3}
.ind.span2{grid-column:span 2}

/* ---------- Feature rows (why us) ---------- */
.frow{display:grid;grid-template-columns:76px 1fr;gap:26px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.frow:first-child{border-top:1px solid var(--line)}
.frow-n{font-size:30px;font-weight:700;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.03em}
.frow h3{font-size:1.16rem;margin-bottom:8px}
.frow p{font-size:14px;color:var(--muted);line-height:1.8;max-width:76ch}

/* ---------- Split content ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,64px);align-items:center}
.split.rev>.split-media{order:2}
.media-stack{position:relative;width:100%}
.media-badge{
  position:absolute;right:-10px;bottom:-10px;padding:16px 20px;border-radius:14px;
  background:rgba(8,13,26,.92);border:1px solid var(--line-strong);backdrop-filter:blur(14px);z-index:3;
}
.media-badge b{display:block;font-size:1.35rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.media-badge span{font-size:11.5px;color:var(--muted)}

.checks{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.checks li{display:flex;gap:12px;font-size:14px;color:var(--text-2);line-height:1.7}
.checks svg{width:18px;height:18px;flex-shrink:0;margin-top:3px;color:var(--brand-2)}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid rgba(95,160,255,.28);padding:clamp(38px,5vw,64px);background:linear-gradient(115deg,rgba(20,44,96,.85),rgba(8,13,26,.9) 55%,rgba(24,60,120,.5))}
.cta-band::before{content:"";position:absolute;right:-120px;top:-160px;width:520px;height:520px;background:radial-gradient(circle,rgba(59,123,255,.35),transparent 65%);filter:blur(6px)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.4rem);max-width:22ch}
.cta-band p{color:var(--text-2);margin-top:14px;max-width:56ch}
.cta-band .hero-actions{margin-top:28px}

/* ---------- Footer ---------- */
.footer{background:#03060D;border-top:1px solid var(--line);padding:clamp(48px,6vw,76px) 0 0;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{font-size:13px;color:var(--muted);line-height:1.9;margin-top:18px;max-width:34ch}
.footer h4{font-size:13px;letter-spacing:.06em;color:#fff;margin-bottom:18px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:13px;color:var(--muted);transition:.2s}
.footer-links a:hover{color:#fff;padding-left:3px}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:13px;color:var(--muted)}
.footer-contact b{color:var(--brand-2);font-family:var(--mono);font-size:16px;letter-spacing:.02em;display:block}
.footer-bottom{margin-top:54px;border-top:1px solid rgba(255,255,255,.06);padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;color:rgba(138,152,176,.85)}
.footer-bottom a:hover{color:#fff}
.badge-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.badge-row span{font-size:11px;color:var(--muted);border:1px solid rgba(255,255,255,.09);border-radius:5px;padding:4px 9px}

/* ---------- Quote / statement ---------- */
.statement{border-left:2px solid var(--brand);padding:6px 0 6px 22px;font-size:clamp(1.05rem,1.6vw,1.3rem);color:#DCE6F7;line-height:1.8}
.statement em{font-style:normal;color:var(--brand-2)}

/* ---------- Metrics strip ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden}
.metrics div{background:rgba(8,13,26,.9);padding:26px 24px}
.metrics.two{grid-template-columns:1fr 1fr}
.metrics.two div{padding:22px 22px}
.metrics b{display:block;font-size:clamp(1.6rem,2.6vw,2.2rem);letter-spacing:-.03em;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.metrics span{display:block;font-size:12.5px;color:var(--muted);margin-top:8px}

/* ---------- Tabs ---------- */
.tabs{display:inline-flex;gap:6px;padding:5px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.02);flex-wrap:wrap}
.tab{padding:9px 18px;border-radius:999px;font-size:13.5px;color:var(--text-2);cursor:pointer;border:0;background:transparent;transition:.24s;white-space:nowrap}
.tab:hover{color:#fff}
.tab.active{background:var(--grad);color:#fff;font-weight:600}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fade .4s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 44px 20px 0;position:relative;
  font-size:1.02rem;color:#fff;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand-soft);transition:.3s;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .a{padding:0 0 22px;font-size:14px;color:var(--muted);line-height:1.85;max-width:80ch}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(32px,4vw,56px);align-items:start}
.form-card{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));border:1px solid var(--line);border-radius:var(--r-l);padding:clamp(26px,3vw,38px)}
.field{margin-bottom:18px}
.field label{display:block;font-size:12.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
.field label i{color:#FF7A7A;font-style:normal;margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;background:rgba(3,6,13,.75);border:1px solid var(--line);border-radius:10px;
  padding:13px 15px;color:#fff;font-size:14px;font-family:inherit;transition:.22s;outline:none;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(138,152,176,.7)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(95,160,255,.65);box-shadow:0 0 0 3px rgba(47,107,255,.14)}
.field textarea{resize:vertical;min-height:96px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:11.5px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-ok{display:none;padding:16px 18px;border:1px solid rgba(55,230,160,.35);background:rgba(55,230,160,.08);border-radius:12px;font-size:13.5px;color:#B9F5DA;margin-bottom:18px}
.form-ok.show{display:block}

.info-list{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line)}
.info-item{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--line);align-items:start}
.info-item .ico{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand-2);background:rgba(59,123,255,.08)}
.info-item .ico svg{width:19px;height:19px}
.info-item .k{font-size:12px;color:var(--muted);letter-spacing:.04em}
.info-item .v{font-size:15px;color:#fff;margin-top:4px;line-height:1.6}
.info-item .v a:hover{color:var(--brand-2)}
.info-item .d{font-size:12.5px;color:var(--muted);margin-top:5px;line-height:1.7}

/* ---------- About page ---------- */
.center-card{border:1px solid var(--line);border-radius:var(--r-l);padding:26px 24px;background:var(--panel);transition:.3s var(--ease)}
.center-card:hover{border-color:var(--line-strong);transform:translateY(-4px);background:var(--panel-2)}
.center-card .city{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--brand-2);text-transform:uppercase}
.center-card h3{font-size:1.05rem;margin:10px 0 8px}
.center-card p{font-size:13px;color:var(--muted);line-height:1.8}

.timeline{position:relative;padding-left:28px;border-left:1px solid var(--line)}
.tl-item{position:relative;padding:0 0 32px 26px}
.tl-item::before{content:"";position:absolute;left:-33px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(59,123,255,.16)}
.tl-item .yr{font-family:var(--mono);font-size:12px;color:var(--brand-2);letter-spacing:.1em}
.tl-item h3{font-size:1rem;margin:8px 0 6px}
.tl-item p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:62ch}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.noanim .reveal{opacity:1!important;transform:none!important;transition:none!important}
.noanim *{animation-duration:.001s!important}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .scroll-hint i{animation:none}
}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.02)}
table.compare{width:100%;min-width:660px;border-collapse:collapse}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:13.5px;line-height:1.7;border-bottom:1px solid var(--line);vertical-align:top}
table.compare thead th{background:rgba(59,123,255,.13);color:#fff;font-size:13px;font-weight:600;letter-spacing:.03em;white-space:nowrap}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody th{color:var(--text-2);font-weight:500;white-space:nowrap;background:rgba(255,255,255,.02);width:110px}
table.compare td{color:var(--muted)}
table.compare td b{color:#fff;font-weight:600}

/* ---------- Chips / platform grid ---------- */
.chip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media (max-width:900px){.chip-grid{grid-template-columns:repeat(2,1fr)}}
.chip{
  display:flex;align-items:center;gap:10px;padding:12px 16px;border:1px solid var(--line);
  border-radius:11px;background:rgba(255,255,255,.025);font-size:13.5px;color:var(--text-2);
  transition:.26s var(--ease);
}
.chip:hover{border-color:rgba(95,160,255,.45);background:rgba(59,123,255,.1);color:#fff;transform:translateY(-2px)}
.chip i{width:7px;height:7px;border-radius:50%;background:var(--grad);flex-shrink:0;font-style:normal}
.chip.hot{border-color:rgba(95,208,255,.4);background:rgba(59,123,255,.12);color:#fff}

/* ---------- Steps horizontal (process) ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);margin-top:28px}
.flow-item{padding:24px 20px 24px 0;position:relative;border-right:1px solid var(--line)}
.flow-item:last-child{border-right:0}
.flow-item .n{font-family:var(--mono);font-size:11px;color:var(--brand-2);letter-spacing:.16em}
.flow-item h4{font-size:14.5px;margin:10px 0 8px;color:#fff}
.flow-item p{font-size:12.5px;color:var(--muted);line-height:1.7}
.flow-item::after{content:"";position:absolute;top:-1px;left:0;width:0;height:1px;background:var(--brand);transition:.6s var(--ease)}
.flow-item:hover::after{width:100%}

/* ---------- Architecture grid ---------- */
.arch{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(255,255,255,.02)}
.arch>div{padding:20px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.arch>div:nth-child(2n){border-right:0}
.arch>div:nth-last-child(-n+2){border-bottom:0}
.arch b{display:block;font-family:var(--mono);font-size:26px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px}
.arch h5{font-size:13.5px;color:#fff;margin:0 0 6px;font-weight:600;line-height:1.4}
.arch p{font-size:12px;color:var(--muted);line-height:1.7;margin:0}

/* ---------- Map placeholder ---------- */
.map-card{
  position:relative;height:230px;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  background:
    linear-gradient(rgba(95,160,255,.09) 1px,transparent 1px) 0 0/100% 34px,
    linear-gradient(90deg,rgba(95,160,255,.09) 1px,transparent 1px) 0 0/34px 100%,
    radial-gradient(circle at 62% 44%,rgba(47,107,255,.22),transparent 60%),
    linear-gradient(160deg,#08101F,#05070F);
  margin-top:16px;
}
.map-card .road{position:absolute;background:rgba(140,170,255,.16)}
.map-card .road.h{left:0;right:0;height:10px;top:52%}
.map-card .road.v{top:0;bottom:0;width:10px;left:58%}
.map-pin{position:absolute;left:58%;top:52%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:8px}
.map-pin i{width:14px;height:14px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 6px rgba(95,208,255,.18),0 0 24px rgba(95,208,255,.7);animation:pulse 2.4s infinite}
.map-pin span{font-size:12px;color:#fff;background:rgba(3,6,13,.85);border:1px solid var(--line-strong);padding:4px 10px;border-radius:6px;white-space:nowrap}
@keyframes pulse{0%,100%{box-shadow:0 0 0 6px rgba(95,208,255,.16),0 0 24px rgba(95,208,255,.6)}50%{box-shadow:0 0 0 12px rgba(95,208,255,.05),0 0 34px rgba(95,208,255,.85)}}
.map-note{position:absolute;left:14px;bottom:12px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:rgba(138,152,176,.9)}

/* ---------- Utilities ---------- */
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-40{margin-top:40px}.mt-56{margin-top:56px}
.mb-32{margin-bottom:32px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.split-58{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,52px);align-items:center}
.nowrap{white-space:nowrap}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav{display:none}
  .burger{display:flex}
  .header-phone{display:none}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(4,1fr)}
  .ind.span3{grid-column:span 2}
  .ind.span2{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .topbar-left span:nth-child(3){display:none}
}
@media (max-width:900px){
  .path-grid{grid-template-columns:1fr 1fr;gap:26px}
  .path::before{display:none}
  .split,.slpit,.split-58,.contact-grid{grid-template-columns:1fr}
  .split.rev>.split-media{order:0}
  .hero-stats{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr}
  .ind-grid{grid-template-columns:1fr 1fr}
  .ind.span3,.ind.span2{grid-column:span 1}
  .flow{grid-template-columns:1fr 1fr}
  .flow-item{border-right:0;border-bottom:1px solid var(--line)}
  .layer{grid-template-columns:1fr;gap:10px}
  .hero{min-height:auto}
  .hero-inner{padding-top:64px}
  .scroll-hint{display:none}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .topbar .wrap{height:auto;padding:8px 18px;flex-wrap:wrap;gap:6px}
  .topbar-left{width:100%;justify-content:center;gap:0}
  .topbar-left span:nth-child(2),.topbar-left span:nth-child(3){display:none}
  .topbar-right{display:none}
  .header .wrap{height:64px}
  .logo-text small{display:none}
  .prod-grid,.grid-2,.grid-4{grid-template-columns:1fr}
  .ind-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .frow{grid-template-columns:44px 1fr;gap:16px}
  .frow-n{font-size:24px}
  .cta-band{padding:30px 22px;border-radius:20px}
  .card{padding:22px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-actions .btn{flex:1 1 auto}
  .footer-bottom{flex-direction:column;gap:8px}
}