/* ============================================================
   领乾信息 · LEADER INFORMATION — 企业官网
   空间智能 · 数字未来
   ============================================================ */

:root{
  --bg0:#04070f;
  --bg1:#070c1a;
  --bg2:#0a1226;
  --bg3:#0e1a38;
  --card:#0b1428;
  --card2:#0d1830;
  --border:rgba(120,170,255,.12);
  --border2:rgba(120,170,255,.22);
  --txt:#eaf2ff;
  --txt1:#b9c8e4;
  --txt2:#7e8fb4;
  --blue:#2f8ff7;
  --cyan:#38c3ff;
  --teal:#2fd4c0;
  --violet:#8b6bff;
  --grad:linear-gradient(120deg,#3aa0ff 0%,#2fc9ff 50%,#37e0c6 100%);
  --grad-soft:linear-gradient(120deg,rgba(58,160,255,.22),rgba(47,217,255,.16),rgba(45,212,190,.16));
  --shadow:0 20px 60px -25px rgba(0,0,0,.75);
  --maxw:1240px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg1);
  color:var(--txt);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
::selection{background:rgba(47,143,247,.4)}

/* ---------- background ambient ---------- */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(47,143,247,.18),transparent 60%),
    radial-gradient(1000px 500px at 10% 20%,rgba(45,212,190,.10),transparent 55%),
    radial-gradient(900px 600px at 50% 110%,rgba(139,107,255,.12),transparent 60%),
    var(--bg0);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(120,170,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{position:relative}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:12px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{
  background:var(--grad);color:#04121f;
  box-shadow:0 12px 30px -10px rgba(47,163,255,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(47,163,255,.7)}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--txt);border-color:var(--border2);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(56,195,255,.08)}

/* ---------- section header ---------- */
.sec{padding:110px 0}
.sec-head{max-width:760px;margin:0 auto 64px;text-align:center}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
  padding:7px 16px;border-radius:100px;border:1px solid var(--border2);
  background:rgba(56,195,255,.06);
}
.sec-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.sec-title{font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;margin:18px 0 14px;letter-spacing:-.01em}
.sec-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-desc{color:var(--txt1);font-size:17px}
.sec-en{font-size:13px;letter-spacing:.34em;color:var(--txt2);text-transform:uppercase;margin-top:6px}

/* ============================================================
   NAVBAR
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:.35s;border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(6,11,24,.82);backdrop-filter:blur(16px);
  border-bottom-color:var(--border);box-shadow:0 10px 30px -18px rgba(0,0,0,.8);
}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{width:44px;height:44px;border-radius:12px;object-fit:cover;box-shadow:0 6px 18px -6px rgba(47,143,247,.7)}
.brand-txt b{font-size:20px;font-weight:800;letter-spacing:.02em;display:block;line-height:1.1}
.brand-txt span{font-size:10px;letter-spacing:.24em;color:var(--txt2);text-transform:uppercase;font-weight:600}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:9px 16px;border-radius:10px;font-size:15px;color:var(--txt1);
  transition:.2s;cursor:pointer;font-weight:500;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:linear-gradient(120deg,rgba(58,160,255,.16),rgba(47,217,255,.10))}
.nav .btn{margin-left:14px;padding:10px 20px;font-size:14px}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--border2);border-radius:10px;background:rgba(255,255,255,.03);cursor:pointer;align-items:center;justify-content:center}
.hamburger svg{width:22px;height:22px}

/* ============================================================
   HERO
   ============================================================ */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding:120px 0 80px}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background:url("../img/hero-bg.jpg") center/cover no-repeat;
  opacity:.34;filter:saturate(1.15);
}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,7,15,.55) 0%,rgba(4,7,15,.35) 40%,var(--bg1) 96%);}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.22em;font-weight:600;color:var(--cyan);
  padding:9px 18px;border-radius:100px;border:1px solid var(--border2);
  background:rgba(56,195,255,.06);backdrop-filter:blur(4px);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{
  font-size:clamp(38px,6.4vw,78px);font-weight:800;line-height:1.08;margin:26px 0 22px;letter-spacing:-.015em;
}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(17px,2vw,21px);color:var(--txt1);max-width:640px;line-height:1.75}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0 36px}
.hero-tags span{
  font-size:14px;color:var(--txt1);padding:8px 15px;border-radius:100px;
  border:1px solid var(--border);background:rgba(10,20,40,.5);
}
.hero-tags span b{color:#fff;margin-right:4px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
/* stats */
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-card{
  padding:24px;border-radius:18px;border:1px solid var(--border);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  backdrop-filter:blur(8px);
}
.stat-card b{font-size:42px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat-card span{display:block;margin-top:10px;color:var(--txt1);font-size:15px;font-weight:600}
.stat-card small{color:var(--txt2);font-size:12px;display:block;margin-top:2px}
.scroll-hint{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);
  color:var(--txt2);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.scroll-hint .mouse{width:24px;height:38px;border:2px solid var(--txt2);border-radius:14px;position:relative}
.scroll-hint .mouse::after{content:"";position:absolute;top:7px;left:50%;width:4px;height:8px;margin-left:-2px;border-radius:3px;background:var(--cyan);animation:wheel 1.6s infinite}
@keyframes wheel{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(10px)}}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:start}
.about-lead{font-size:20px;line-height:1.9;color:var(--txt)}
.about-lead b{color:var(--cyan)}
.about-p{color:var(--txt1);margin-top:22px}
.mvv{display:flex;flex-direction:column;gap:20px}
.mvv-item{
  display:flex;gap:18px;padding:24px;border-radius:18px;border:1px solid var(--border);
  background:var(--card);transition:.3s;
}
.mvv-item:hover{border-color:var(--border2);transform:translateY(-3px);box-shadow:var(--shadow)}
.mvv-ic{flex:0 0 52px;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-soft);border:1px solid var(--border2);color:var(--cyan)}
.mvv-ic svg{width:26px;height:26px}
.mvv-item h4{font-size:18px;margin-bottom:5px}
.mvv-item h4 small{color:var(--txt2);font-weight:500;margin-left:8px;font-size:13px}
.mvv-item p{color:var(--txt1);font-size:15px}
/* service domains */
.domains{margin-top:70px}
.domains .sec-kicker{margin-bottom:22px}
.domains-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.domain{
  display:inline-flex;align-items:center;gap:9px;padding:11px 20px;border-radius:12px;
  border:1px solid var(--border);background:rgba(10,20,40,.5);color:var(--txt1);font-size:15px;
  transition:.2s;
}
.domain svg{width:17px;height:17px;color:var(--cyan)}
.domain:hover{border-color:var(--cyan);color:#fff;transform:translateY(-2px)}

/* ============================================================
   TECH
   ============================================================ */
.tech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.tech-card{
  border-radius:22px;overflow:hidden;border:1px solid var(--border);background:var(--card);
  transition:.35s;position:relative;
}
.tech-card:hover{border-color:var(--border2);box-shadow:var(--shadow);transform:translateY(-5px)}
.tech-img{position:relative;height:280px;overflow:hidden}
.tech-img img{width:100%;height:100%;object-fit:cover;transition:.6s}
.tech-card:hover .tech-img img{transform:scale(1.06)}
.tech-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(7,12,26,.9))}
.tech-num{position:absolute;top:18px;left:22px;z-index:2;font-size:15px;font-weight:800;color:rgba(255,255,255,.95);
  letter-spacing:.12em}
.tech-img .icon{position:absolute;right:20px;top:18px;width:46px;height:46px;z-index:2;border-radius:12px;
  background:rgba(7,12,26,.5);border:1px solid var(--border2);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;color:var(--cyan)}
.tech-img .icon svg{width:24px;height:24px}
.tech-body{padding:26px 26px 30px;position:relative;margin-top:-70px}
.tech-body h3{font-size:22px;margin-bottom:6px}
.tech-body .role{font-size:12px;letter-spacing:.14em;color:var(--cyan);text-transform:uppercase;font-weight:600}
.tech-body p{color:var(--txt1);margin-top:14px;font-size:15px}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products{background:linear-gradient(180deg,transparent, rgba(10,18,38,.4) 30%, rgba(10,18,38,.4) 70%, transparent)}
.prod-tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:54px}
.prod-tab{
  padding:13px 26px;border-radius:14px;border:1px solid var(--border);
  background:rgba(10,20,40,.5);color:var(--txt1);font-size:16px;font-weight:600;cursor:pointer;transition:.25s;
  display:inline-flex;align-items:center;gap:10px;
}
.prod-tab svg{width:19px;height:19px;color:var(--txt2);transition:.25s}
.prod-tab:hover{border-color:var(--border2);color:#fff}
.prod-tab.active{background:var(--grad);color:#04121f;border-color:transparent;box-shadow:0 10px 26px -10px rgba(47,163,255,.6)}
.prod-tab.active svg{color:#04121f}
.prod-panel{display:none;animation:fadeUp .5s ease}
.prod-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.prod-back{text-align:center;max-width:820px;margin:0 auto 44px;color:var(--txt1);font-size:17px}
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.prod-card{
  border-radius:22px;overflow:hidden;border:1px solid var(--border);background:var(--card);
  transition:.35s;display:flex;flex-direction:column;
}
.prod-card:hover{border-color:var(--border2);box-shadow:var(--shadow);transform:translateY(-5px)}
.prod-img{height:236px;overflow:hidden;position:relative}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:.6s}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,12,26,.7))}
.prod-img .tag{position:absolute;left:18px;bottom:14px;z-index:2;font-size:12px;font-weight:700;color:#fff;
  padding:6px 12px;border-radius:8px;background:rgba(7,12,26,.6);border:1px solid var(--border2);backdrop-filter:blur(5px)}
.prod-body{padding:26px;flex:1;display:flex;flex-direction:column}
.prod-body h3{font-size:21px;margin-bottom:10px}
.prod-body p{color:var(--txt1);font-size:15px;flex:1}
.prod-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.prod-meta span{font-size:12.5px;color:var(--cyan);padding:6px 12px;border-radius:8px;background:rgba(56,195,255,.08);border:1px solid rgba(56,195,255,.16)}
.prod-wide{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:0}
.prod-wide .prod-img{height:100%;min-height:300px}

/* ============================================================
   ADVANTAGE / STATS
   ============================================================ */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:64px;
}
.stat-box{
  text-align:center;padding:34px 16px;border-radius:20px;border:1px solid var(--border);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
}
.stat-box b{font-size:52px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat-box span{display:block;color:var(--txt1);margin-top:12px;font-weight:600}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv{
  padding:30px;border-radius:20px;border:1px solid var(--border);background:var(--card);transition:.3s;position:relative;overflow:hidden;
}
.adv::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:var(--grad);opacity:0;transition:.3s}
.adv:hover{transform:translateY(-4px);border-color:var(--border2);box-shadow:var(--shadow)}
.adv:hover::before{opacity:1}
.adv-ic{width:54px;height:54px;border-radius:14px;background:var(--grad-soft);border:1px solid var(--border2);
  display:flex;align-items:center;justify-content:center;color:var(--cyan);margin-bottom:18px}
.adv-ic svg{width:27px;height:27px}
.adv h3{font-size:19px;margin-bottom:9px}
.adv p{color:var(--txt1);font-size:14.5px}

/* ============================================================
   HONORS
   ============================================================ */
.honors{margin-top:70px}
.honor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.honor{
  display:flex;gap:16px;align-items:center;padding:22px;border-radius:16px;border:1px solid var(--border);
  background:var(--card);transition:.25s;
}
.honor:hover{border-color:var(--border2)}
.honor .badge{flex:0 0 46px;width:46px;height:46px;border-radius:12px;background:var(--grad-soft);
  border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;color:var(--cyan)}
.honor .badge svg{width:23px;height:23px}
.honor h4{font-size:16px}
.honor p{color:var(--txt2);font-size:13px}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline{position:relative;max-width:900px;margin:0 auto}
.timeline::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,var(--border2),var(--cyan),var(--border2),transparent)}
.tl-item{position:relative;width:50%;padding:0 44px 60px}
.tl-item:nth-child(odd){left:0;text-align:right}
.tl-item:nth-child(even){left:50%;text-align:left}
.tl-dot{position:absolute;top:6px;width:18px;height:18px;border-radius:50%;background:var(--bg1);
  border:3px solid var(--cyan);box-shadow:0 0 0 5px rgba(56,195,255,.12)}
.tl-item:nth-child(odd) .tl-dot{right:-9px}
.tl-item:nth-child(even) .tl-dot{left:-9px}
.tl-phase{display:inline-block;font-size:13px;font-weight:700;color:var(--cyan);letter-spacing:.06em;
  padding:6px 14px;border-radius:100px;border:1px solid rgba(56,195,255,.3);background:rgba(56,195,255,.07);margin-bottom:14px}
.tl-item h3{font-size:22px;margin-bottom:8px}
.tl-item p{color:var(--txt1);font-size:15px;line-height:1.75}

/* ============================================================
   PARTNERS
   ============================================================ */
.partner-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:16px}
.partner{
  aspect-ratio:1.35;border-radius:16px;border:1px solid var(--border);background:#fff;
  display:flex;align-items:center;justify-content:center;padding:14px;transition:.25s;
}
.partner img{max-height:70%;max-width:78%;object-fit:contain;filter:grayscale(1);opacity:.55;transition:.3s}
.partner:hover img{filter:none;opacity:1}
.partner:hover{border-color:var(--border2);transform:translateY(-4px);box-shadow:var(--shadow)}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:56px;align-items:start}
.contact-info h3{font-size:28px;margin-bottom:10px}
.contact-info>p{color:var(--txt1);margin-bottom:32px}
.c-field{margin-bottom:20px}
.c-field .lab{font-size:13px;color:var(--txt2);letter-spacing:.06em;margin-bottom:7px;text-transform:uppercase}
.c-line{display:flex;align-items:center;gap:14px;font-size:17px;color:var(--txt)}
.c-line b{color:#fff}
.c-line svg{width:22px;height:22px;color:var(--cyan);flex:0 0 22px}
.c-person{display:flex;gap:16px;align-items:center;padding:20px;border-radius:16px;border:1px solid var(--border);background:var(--card);margin-top:14px}
.c-person .avatar{width:48px;height:48px;border-radius:12px;background:var(--grad-soft);border:1px solid var(--border2);
  display:flex;align-items:center;justify-content:center;color:var(--cyan);font-weight:800;font-size:18px}
.c-person h4{font-size:16px}
.c-person p{color:var(--txt2);font-size:13px}
.c-person .phone{margin-left:auto;font-size:18px;font-weight:700;color:var(--cyan);white-space:nowrap}
.contact-side{display:flex;flex-direction:column;gap:22px}
.qr-card{display:flex;gap:22px;align-items:center;padding:26px;border-radius:20px;border:1px solid var(--border);background:var(--card)}
.qr-card img{width:132px;height:132px;border-radius:14px;background:#fff;padding:6px}
.qr-card h4{font-size:18px;margin-bottom:6px}
.qr-card p{color:var(--txt1);font-size:14px}
.serv-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.serv-tag{font-size:14px;color:var(--txt1);padding:9px 16px;border-radius:10px;border:1px solid var(--border);background:rgba(10,20,40,.5)}
.serv-tag svg{width:15px;height:15px;color:var(--cyan);vertical-align:-2px;margin-right:6px}
.cta-box{
  padding:28px;border-radius:20px;border:1px solid var(--border2);background:var(--grad-soft);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.cta-box h4{font-size:20px}
.cta-box p{color:var(--txt1);margin-top:4px}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{border-top:1px solid var(--border);background:rgba(4,7,15,.6);padding:56px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer .brand b{font-size:19px}
.footer-desc{color:var(--txt2);margin-top:14px;max-width:340px;font-size:14px}
.footer h5{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:16px;text-transform:uppercase}
.footer ul li{margin-bottom:11px}
.footer ul a{color:var(--txt2);font-size:14.5px;transition:.2s}
.footer ul a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--border);color:var(--txt2);font-size:13px}
.footer-slogan{color:var(--txt1);font-size:14px;margin-top:20px}
.footer-slogan b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.icp{padding:20px 0 0;text-align:center;font-size:14px;color:var(--txt2)}
.icp a{color:var(--txt2);transition:.2s}
.icp a:hover{color:var(--cyan)}
.icp .sep{margin:0 8px;opacity:.45}

/* ============================================================
   REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}.d5{transition-delay:.4s}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .tech-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:1fr}
  .prod-wide{grid-template-columns:1fr}
  .prod-wide .prod-img{min-height:240px}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(4,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:4px;
    background:rgba(6,11,24,.97);padding:16px 24px 24px;border-top:1px solid var(--border);backdrop-filter:blur(16px)}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 12px;width:100%;font-size:17px}
  .nav-links a.active{background:rgba(56,195,255,.08)}
  .hamburger{display:flex}
  .nav .btn{display:none}
}
@media(max-width:640px){
  section{padding:74px 0}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr}
  .honor-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .timeline::before{left:10px}
  .tl-item{width:100%;left:0!important;text-align:left!important;padding:0 0 46px 44px}
  .tl-dot{left:2px!important;right:auto!important}
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-card b{font-size:34px}
  .c-line{flex-wrap:wrap}
  .c-person{flex-wrap:wrap}
  .c-person .phone{margin-left:0;width:100%;margin-top:6px}
  .footer-grid{grid-template-columns:1fr}
  .prod-tab{font-size:14px;padding:11px 16px}
  .sec{padding:74px 0}
}