/* =========================================================
   THẾ GIỚI GIẤY — Homepage
   Design tokens & base
   ========================================================= */
:root{
  /* Brand colors — aligned to thegioigiay-redesign reference palette */
  --navy-900:#0a1f5c;
  --navy-800:#002fa4;
  --navy-700:#0d3fc2;
  --blue-600:#1fb4ff;
  --blue-500:#5cc8ff;
  --blue-100:#dcefff;
  --blue-50:#f1f8ff;
  --orange-500:#f6a800;
  --orange-600:#d99000;
  --orange-100:#fff4dd;
  --gold-ink:#3a2500;
  --green-600:#22c55e;

  --ink-900:#0f172a;
  --ink-700:#3a4459;
  --ink-500:#5b6b82;
  --ink-300:#a3aabb;
  --line:#e6edf6;
  --surface:#ffffff;
  --surface-alt:#f6faff;

  --font-head:"Montserrat",Arial,sans-serif;
  --font-body:"Inter",Arial,sans-serif;

  --container:1240px;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(0,47,164,.06);
  --shadow-md:0 10px 30px rgba(0,47,164,.10);
  --shadow-lg:0 20px 50px rgba(0,47,164,.14);

  --header-h:88px;
  --header-h-shrink:64px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink-900);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{font-family:var(--font-head);margin:0;color:var(--navy-900);line-height:1.25;}
p{margin:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
section{position:relative;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}

/* Skip link */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--navy-900);color:#fff;
  padding:10px 18px;z-index:1000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

/* Eyebrow / section heading kit */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);font-weight:700;font-size:13px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--blue-600);margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:3px;border-radius:3px;background:var(--blue-600);flex:none;
}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-inline:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}
.section-head.center .eyebrow::before{display:none;}
.section-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--ink-500);font-size:16px;}
.section-pad{padding:88px 0;}
@media (max-width:768px){
  .section-pad{padding:56px 0;}
  .section-head{margin-bottom:30px;}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-head);font-weight:700;font-size:15px;
  padding:14px 28px;border-radius:999px;transition:all .2s ease;white-space:nowrap;
}
.btn svg{flex:none;}
.btn-primary{background:linear-gradient(135deg,var(--blue-600),var(--navy-800));color:#fff;box-shadow:0 8px 20px rgba(31,180,255,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,180,255,.42);}
.btn-gold{background:var(--orange-500);color:var(--gold-ink);box-shadow:0 8px 20px rgba(246,168,0,.3);}
.btn-gold:hover{background:var(--orange-600);transform:translateY(-2px);}
.btn-cta{background:linear-gradient(135deg,#ff9a3d,#ff6a00);color:#fff;box-shadow:0 8px 20px rgba(255,106,0,.35);}
.btn-cta:hover{background:linear-gradient(135deg,#ff8a1f,#e65c00);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,0,.42);}
.btn-navy{background:var(--navy-800);color:#fff;}
.btn-navy:hover{background:var(--navy-900);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--navy-800);border:1.5px solid var(--line);}
.btn-outline:hover{border-color:var(--blue-600);color:var(--blue-600);background:var(--surface-alt);}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-ghost{color:var(--blue-600);font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.btn-ghost svg{transition:transform .2s;}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn-block{width:100%;}
.btn-sm{padding:10px 20px;font-size:13px;}

/* =========================================================
   HEADER
   ========================================================= */
.topbar{
  background:var(--navy-900);color:#fff;font-size:13px;
}
.topbar .container{
  display:flex;align-items:center;justify-content:space-between;
  height:38px;
}
.topbar-left{display:flex;gap:24px;}
.topbar-left a,.topbar-left span{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.85);}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:rgba(255,255,255,.85);}
.lang-switch{display:flex;align-items:center;gap:6px;}
.lang-switch button{color:rgba(255,255,255,.6);font-size:13px;font-weight:600;}
.lang-switch button.active{color:#fff;text-decoration:underline;}

.site-header{
  position:sticky;top:0;left:0;right:0;z-index:500;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(10,38,71,.10);}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);transition:height .25s ease;
}
.site-header.is-scrolled .nav-row{height:var(--header-h-shrink);}

.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand .logo-mark{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,var(--navy-800),var(--blue-600));
  display:flex;align-items:center;justify-content:center;flex:none;
  transition:width .25s ease,height .25s ease;
}
.site-header.is-scrolled .brand .logo-mark{width:38px;height:38px;}
.brand .logo-mark svg{width:26px;height:26px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--font-head);font-weight:800;font-size:18px;color:var(--navy-900);letter-spacing:-.01em;}
.brand-text span{font-size:11px;color:var(--ink-500);letter-spacing:.03em;}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav>li{position:relative;}
.main-nav>li>a{
  display:flex;align-items:center;gap:6px;
  padding:14px 16px;font-weight:600;font-size:15px;color:var(--ink-900);
  border-radius:8px;transition:color .2s;
}
.main-nav>li>a svg{width:14px;height:14px;color:var(--ink-300);transition:transform .2s;}
.main-nav>li:hover>a,.main-nav>li>a.active{color:var(--blue-600);}
.main-nav>li:hover>a svg{transform:rotate(180deg);color:var(--blue-600);}

.nav-utils{display:flex;align-items:center;gap:6px;flex:none;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--navy-800);transition:background .2s;
}
.icon-btn:hover{background:var(--surface-alt);}
.icon-btn svg{width:20px;height:20px;}
.hamburger{display:none;}

/* Mega menu */
.mega{
  position:absolute;top:100%;left:50%;transform:translate(-50%,10px);
  width:min(1080px,92vw);background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);
  border:1px solid var(--line);
  padding:32px;display:none;grid-template-columns:1fr 1.3fr 1.3fr 1.3fr 1.3fr;gap:28px;
  opacity:0;visibility:hidden;transition:opacity .22s ease,transform .22s ease;
}
.main-nav>li:hover .mega{display:grid;opacity:1;visibility:visible;transform:translate(-50%,0);}
.mega-col h4{
  font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--blue-600);
  font-weight:800;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--blue-100);
}
.mega-col h4 a{color:inherit;text-decoration:none;}
.mega-col h4 a:hover{text-decoration:underline;}
.mega-col ul li a{
  display:block;padding:7px 0;color:var(--ink-700);font-size:14.5px;font-weight:500;
  border-left:2px solid transparent;padding-left:10px;margin-left:-10px;transition:.15s;
}
.mega-col ul li a:hover{color:var(--blue-600);border-left-color:var(--blue-600);background:var(--blue-50);}
.mega-brands{display:flex;flex-direction:column;gap:10px;}
.mega-brands .brand-chip{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  background:var(--surface-alt);font-weight:700;font-size:13px;color:var(--navy-800);
}
.mega-brands .brand-chip span.dot{width:8px;height:8px;border-radius:50%;background:var(--blue-600);flex:none;}
.mega-cta{
  grid-column:1 / -1;margin-top:6px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.mega-cta p{color:var(--ink-500);font-size:14px;}

/* Mobile nav */
.mobile-nav-panel{
  position:fixed;top:0;left:0;height:100%;width:min(360px,86vw);background:#fff;z-index:1002;
  transform:translateX(-105%);transition:transform .3s ease;overflow-y:auto;
  box-shadow:12px 0 40px rgba(0,0,0,.15);
}
.mobile-nav-panel.is-open{transform:translateX(0);}
.mobile-nav-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.mobile-nav-list{padding:8px 10px;}
.mobile-nav-list>li{border-bottom:1px solid var(--line);}
.mobile-nav-list>li>a,.mobile-accordion-trigger{
  display:flex;align-items:center;justify-content:space-between;padding:16px 10px;
  font-weight:700;font-size:15.5px;color:var(--navy-900);width:100%;text-align:left;
}
.mobile-accordion-trigger svg{transition:transform .2s;color:var(--ink-300);}
.mobile-accordion-trigger[aria-expanded="true"] svg{transform:rotate(180deg);}
.mobile-submenu{max-height:0;overflow:hidden;transition:max-height .25s ease;background:var(--surface-alt);border-radius:10px;}
.mobile-submenu-inner{padding:6px 16px 14px;}
.mobile-submenu-inner h5{font-size:12px;color:var(--blue-600);text-transform:uppercase;letter-spacing:.05em;margin:12px 0 6px;}
.mobile-submenu-inner h5 a{color:inherit;text-decoration:none;}
.mobile-submenu-inner h5 a:hover{text-decoration:underline;}
.mobile-submenu-inner a{display:block;padding:6px 0;color:var(--ink-700);font-size:14.5px;font-weight:500;}
.mobile-nav-foot{padding:18px 20px;display:flex;flex-direction:column;gap:10px;}
.nav-overlay{
  position:fixed;inset:0;background:rgba(10,20,40,.5);z-index:1001;opacity:0;visibility:hidden;
  transition:opacity .25s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}

@media (max-width:1080px){
  .main-nav,.nav-utils .icon-btn.search-btn,.nav-utils .icon-btn.login-btn,.nav-utils .lang-inline{display:none;}
  .hamburger{
    display:flex;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;
    color:var(--navy-900);flex:none;
  }
  .topbar-left{display:none;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .nav-row{gap:8px;}
  .brand{gap:8px;min-width:0;}
  .brand .logo-mark{width:38px;height:38px;}
  .brand .logo-mark svg{width:20px;height:20px;}
  .brand-text strong{font-size:15px;}
  .brand-text span{display:none;}
  .nav-utils{gap:4px;}
  .nav-utils .btn-primary{padding:10px 14px;font-size:12.5px;}
  .topbar .container{font-size:11.5px;}
  .topbar-right{gap:10px;}
}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;background:linear-gradient(180deg,#eaf4ff 0%,#f6faff 100%);overflow:hidden;}
.hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,180,255,.22),transparent 70%);pointer-events:none;
}
.hero-slider{position:relative;height:600px;overflow:hidden;}
.hero-slide{
  position:absolute;inset:0;display:flex;align-items:center;opacity:0;visibility:hidden;
  transition:opacity .6s ease;
}
.hero-slide.is-active{opacity:1;visibility:visible;position:relative;}
.hero-slide-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;width:100%;padding-top:20px;position:relative;z-index:1;}
.hero-copy{max-width:600px;color:var(--ink-900);}
.hero-tag{
  display:inline-block;padding:8px 16px;border-radius:999px;background:#fff;
  border:1px solid var(--line);color:var(--navy-800);box-shadow:var(--shadow-sm);
  font-size:13px;font-weight:700;letter-spacing:.02em;margin-bottom:20px;
}
.hero-copy .hero-title{color:var(--navy-800);font-size:clamp(30px,4.4vw,50px);font-weight:900;letter-spacing:-.01em;margin-bottom:20px;font-family:var(--font-head);line-height:1.25;}
.hero-copy .hero-title .hl{color:var(--blue-600);}
.hero-copy p{color:var(--ink-500);font-size:17px;max-width:520px;margin-bottom:32px;}
.hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;}
.hero-art{flex:none;width:340px;height:340px;display:flex;align-items:center;justify-content:center;}
.hero-art-frame{
  width:100%;height:100%;border-radius:28px;background:linear-gradient(135deg,#dfefff,#c9e6ff);
  box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;padding:60px;color:#7fa8d6;
}
.hero-nav{
  position:absolute;top:calc(50% - 34px);width:48px;height:48px;border-radius:50%;
  background:#fff;color:var(--navy-800);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  z-index:20;transition:background .2s,color .2s;box-shadow:var(--shadow-sm);
}
.hero-nav:hover{background:var(--blue-600);color:#fff;}
.hero-nav.prev{left:24px;}
.hero-nav.next{right:24px;}
.hero-dots{position:absolute;bottom:104px;left:0;right:0;display:flex;justify-content:center;gap:10px;z-index:20;}
.hero-dots button{width:10px;height:10px;border-radius:50%;background:rgba(0,47,164,.22);transition:.2s;}
.hero-dots button.is-active{background:var(--navy-800);width:26px;border-radius:6px;}

.usp-strip{position:relative;margin-top:-52px;z-index:30;padding-bottom:0;}
.usp-card{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:repeat(5,1fr);
}
.usp-item{
  padding:26px 20px;text-align:center;border-right:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.usp-item:last-child{border-right:none;}
.usp-ico{
  width:52px;height:52px;border-radius:14px;background:var(--blue-100);color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;
}
.usp-ico svg{width:26px;height:26px;}
.usp-item h3{font-size:15px;font-weight:800;color:var(--navy-900);}
.usp-item p{font-size:13px;color:var(--ink-500);line-height:1.5;}

@media (max-width:1080px){
  .hero-art{display:none;}
  .hero-slider{height:auto;min-height:520px;padding:40px 0;}
  .usp-card{grid-template-columns:repeat(2,1fr);}
  .usp-item{border-right:none;border-bottom:1px solid var(--line);padding:22px 14px;}
}
@media (max-width:560px){
  .usp-card{grid-template-columns:1fr;}
  .hero-nav{display:none;}
}

/* =========================================================
   INDUSTRY SOLUTIONS
   ========================================================= */
.industry-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.industry-card{
  position:relative;min-height:220px;border-radius:var(--radius-md);overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;padding:22px 18px;
  color:#fff;transition:.25s ease;isolation:isolate;
}
.industry-card::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(180deg,rgba(0,47,164,.08),rgba(10,31,92,.86));
}
.industry-card.i1{background:linear-gradient(135deg,#2563eb,#0a1f5c);}
.industry-card.i2{background:linear-gradient(135deg,#0891b2,#0a1f5c);}
.industry-card.i3{background:linear-gradient(135deg,#0ea5e9,#0a1f5c);}
.industry-card.i4{background:linear-gradient(135deg,#1d4ed8,#0a1f5c);}
.industry-card.i5{background:linear-gradient(135deg,#0284c7,#0a1f5c);}
.industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.industry-ico{
  width:48px;height:48px;border-radius:12px;background:rgba(255,255,255,.16);color:#fff;
  display:flex;align-items:center;justify-content:center;margin-bottom:34px;
}
.industry-ico svg{width:24px;height:24px;}
.industry-card h3{font-size:18px;font-weight:800;margin-bottom:4px;color:#fff;}
.industry-card p{font-size:13px;color:#dbe8ff;}

/* =========================================================
   PRODUCTS
   ========================================================= */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:36px;}
.product-card{
  background:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:.25s ease;border:1px solid var(--line);
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.product-thumb{
  position:relative;height:200px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,var(--blue-50),var(--blue-100));color:var(--blue-600);
  text-decoration:none;
}
.product-tag{
  position:absolute;top:14px;left:14px;background:var(--blue-600);color:#fff;font-size:12px;
  font-weight:700;padding:5px 12px;border-radius:999px;
}
.product-tag.hot{background:var(--orange-500);color:var(--gold-ink);}
.product-body{padding:22px;}
.product-body h3{font-size:18px;font-weight:800;margin-bottom:8px;}
.product-body h3 a{color:inherit;text-decoration:none;}
.product-body h3 a:hover{color:var(--blue-600);text-decoration:underline;}
.product-body p{font-size:14px;color:var(--ink-500);margin-bottom:18px;min-height:44px;}

.combo-banner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:linear-gradient(135deg,var(--navy-800),var(--navy-900));
  border-radius:var(--radius-lg);padding:40px 48px;overflow:hidden;
}
.combo-copy{max-width:640px;}
.combo-copy .eyebrow{color:var(--orange-500);}
.combo-copy .eyebrow::before{background:var(--orange-500);}
.combo-copy h2{color:#fff;font-size:clamp(20px,2.6vw,28px);margin:10px 0 12px;}
.combo-copy p{color:rgba(255,255,255,.85);margin-bottom:22px;font-size:15px;}
.combo-visual{flex:none;opacity:.85;color:var(--orange-500);}

@media (max-width:1080px){
  .industry-grid{grid-template-columns:repeat(3,1fr);}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .combo-banner{flex-wrap:wrap;padding:32px;}
  .combo-visual{display:none;}
}
@media (max-width:640px){
  .industry-grid{grid-template-columns:repeat(2,1fr);}
  .product-grid{grid-template-columns:1fr;}
}

/* =========================================================
   WHY CHOOSE US
   ========================================================= */
.why-section{background:var(--surface-alt);}
.stat-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-bottom:60px;
}
.stat-item{
  text-align:center;padding:0 8px;position:relative;
}
.stat-item:not(:last-child)::after{
  content:"";position:absolute;right:-8px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.stat-item strong{
  display:block;font-family:var(--font-head);font-size:clamp(32px,4.2vw,44px);font-weight:900;color:var(--navy-800);
  line-height:1;letter-spacing:-.01em;
}
.stat-item strong .stat-suffix{color:var(--blue-600);font-size:.68em;}
.stat-item > span{font-size:14px;color:var(--ink-500);display:block;margin-top:10px;line-height:1.4;font-weight:600;}

@media (max-width:1080px){
  .stat-item:nth-child(3n)::after{display:none;}
}
@media (max-width:640px){
  .stat-item:nth-child(2n)::after{display:none;}
}

.partners-block{text-align:center;}
.partners-block h3{font-size:20px;font-weight:800;margin-bottom:8px;}
.partners-block p{color:var(--ink-500);margin-bottom:28px;}

.partner-tablist{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px;}
.partner-tab{
  position:relative;overflow:hidden;padding:11px 20px;border-radius:999px;border:1.5px solid var(--line);
  background:#fff;font-family:var(--font-head);font-weight:700;font-size:13.5px;color:var(--ink-500);
  transition:color .25s,border-color .25s;
}
.partner-tab span:last-child{position:relative;z-index:1;}
.partner-tab .tab-fill{
  position:absolute;inset:0;left:0;width:0;background:var(--blue-100);z-index:0;
}
.partner-tab.is-active{border-color:var(--blue-600);color:var(--navy-900);box-shadow:var(--shadow-sm);}
.partner-tab.is-active .tab-fill{animation:tab-fill-grow 3.5s linear forwards;}
@keyframes tab-fill-grow{from{width:0;}to{width:100%;}}

.partner-panels{position:relative;}
.partner-panel{display:none;}
.partner-panel.is-active{display:block;animation:partner-fade .4s ease;}
@keyframes partner-fade{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

.logo-marquee{overflow:hidden;position:relative;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.logo-track{display:flex;gap:16px;width:max-content;animation:marquee 16s linear infinite;}
.logo-chip{
  flex:none;padding:14px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--font-head);font-weight:700;color:var(--navy-800);font-size:14.5px;box-shadow:var(--shadow-sm);
}
@keyframes marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}

@media (max-width:640px){
  .partner-tab{padding:9px 14px;font-size:12.5px;}
}

/* =========================================================
   QUICK QUOTE
   ========================================================= */
.quote-section{
  background:linear-gradient(135deg,var(--navy-800) 0%,var(--navy-900) 65%);color:#fff;overflow:hidden;
}
.quote-section::before{
  content:"";position:absolute;left:-160px;bottom:-160px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,180,255,.25),transparent 70%);pointer-events:none;
}
.quote-section::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(246,168,0,.18),transparent 70%);pointer-events:none;
}
.quote-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;position:relative;z-index:1;}
.quote-info h2{color:#fff;font-size:clamp(24px,2.8vw,32px);margin:10px 0 18px;}
.quote-info p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:26px;}
.cert-row{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:32px;}
.cert-badge{display:flex;flex-direction:column;align-items:center;gap:9px;width:88px;text-align:center;}
.cert-ico{
  width:58px;height:58px;border-radius:50%;background:#fff;color:var(--navy-800);
  display:flex;align-items:center;justify-content:center;border:2.5px solid var(--orange-500);
  box-shadow:0 8px 18px rgba(0,0,0,.25);
}
.cert-ico svg{width:26px;height:26px;}
.cert-badge span:last-child{font-size:11.5px;font-weight:700;color:rgba(255,255,255,.9);line-height:1.3;}
.contact-list{display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:rgba(255,255,255,.88);}
.contact-list svg{width:20px;height:20px;flex:none;color:#8fb8f5;margin-top:1px;}

.quote-form{
  position:relative;background:#fff;border-radius:var(--radius-lg);padding:28px;max-width:460px;
  box-shadow:0 20px 50px rgba(0,0,0,.3);color:var(--ink-900);border-top:5px solid var(--orange-500);
  transition:transform .3s ease,box-shadow .3s ease;
}
.quote-form:hover{transform:translateY(-4px);box-shadow:0 28px 60px rgba(0,0,0,.38);}
.quote-form h3{font-size:19px;font-weight:800;}
.quote-form-sub{
  display:inline-flex;align-items:center;gap:6px;color:var(--gold-ink);background:var(--orange-100);
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;margin:7px 0 18px;
}
.form-row{margin-bottom:12px;}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.form-field label{display:block;font-size:13px;font-weight:700;color:var(--ink-700);margin-bottom:5px;}
.form-field label span{color:var(--orange-500);}
.form-field input,.form-field select{
  width:100%;padding:10px 13px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;
  font-family:var(--font-body);color:var(--ink-900);background:var(--surface-alt);transition:.2s;
}
.form-field input:focus,.form-field select:focus{outline:none;border-color:var(--blue-600);background:#fff;}
.form-field select.is-preselected{border-color:var(--orange-500);background:var(--orange-100);transition:.3s;}
.form-check{display:flex;align-items:flex-start;gap:9px;margin:10px 0 16px;font-size:12.5px;color:var(--ink-500);}
.form-check input{margin-top:3px;}

.btn-shimmer{position:relative;overflow:hidden;}
.btn-shimmer::after{
  content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.6),transparent);
  transform:skewX(-20deg);animation:btn-shimmer-sweep 2.8s ease-in-out infinite;
}
@keyframes btn-shimmer-sweep{
  0%{left:-60%;}
  45%{left:130%;}
  100%{left:130%;}
}

@media (max-width:1080px){
  .stat-grid{grid-template-columns:repeat(3,1fr);}
  .quote-grid{grid-template-columns:1fr;gap:40px;}
}
@media (max-width:640px){
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .form-row-2{grid-template-columns:1fr;}
}

/* =========================================================
   OEM SERVICE
   ========================================================= */
.oem-section{background:linear-gradient(180deg,#fff,var(--blue-50));}
.oem-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center;}
.oem-copy p{color:var(--ink-500);font-size:15.5px;margin:16px 0 26px;}
.oem-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.oem-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
  transition:.25s ease;display:block;
}
.oem-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent;}
.oem-thumb{
  width:100%;height:150px;background:linear-gradient(160deg,var(--blue-50),var(--blue-100));color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;
}
.oem-body{padding:16px 18px;}
.oem-card h3{font-size:15px;font-weight:700;color:var(--navy-900);}

/* =========================================================
   BLOG
   ========================================================= */
.blog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.blog-card{
  background:#fff;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);
  transition:.25s ease;
}
.blog-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.blog-thumb{
  height:150px;background:linear-gradient(160deg,var(--blue-100),var(--blue-50));color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;
}
.blog-body{padding:20px;}
.blog-date{font-size:12px;color:var(--blue-600);font-weight:700;text-transform:uppercase;letter-spacing:.03em;}
.blog-body h3{font-size:16px;font-weight:700;margin:10px 0 8px;line-height:1.4;}
.blog-body p{font-size:13.5px;color:var(--ink-500);line-height:1.55;}

/* =========================================================
   VIDEO
   ========================================================= */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.video-card{
  position:relative;height:200px;border-radius:var(--radius-md);overflow:hidden;
  background:linear-gradient(160deg,var(--navy-800),var(--navy-900));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  transition:.25s ease;
}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.video-card h3{color:#fff;font-size:14px;font-weight:600;text-align:center;padding:0 16px;font-family:var(--font-body);}
.play-btn{
  width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.16);
  border:1.5px solid rgba(255,255,255,.5);display:flex;align-items:center;justify-content:center;color:#fff;
}
.play-btn svg{width:20px;height:20px;}

/* =========================================================
   FOOTER
   ========================================================= */
footer{background:linear-gradient(180deg,var(--navy-800),var(--navy-900) 70%);color:rgba(255,255,255,.85);}
.footer-main{padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-about p{font-size:14px;line-height:1.7;margin:0 0 18px;color:rgba(255,255,255,.65);}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:10px;margin-bottom:6px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:.15s;}
.footer-links a:hover{color:#fff;}
.footer-meta{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6);line-height:1.6;}
.social-row{display:flex;gap:10px;}
.social-row .icon-btn{background:rgba(255,255,255,.08);color:#fff;}
.social-row .icon-btn:hover{background:rgba(255,255,255,.18);}
.social-row svg{width:18px;height:18px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.55);}
.footer-badges{display:flex;gap:10px;}
.footer-badges span{padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.08);font-weight:600;}

/* =========================================================
   STICKY CTA + BACK TO TOP
   ========================================================= */
.sticky-cta{
  position:fixed;right:24px;bottom:24px;z-index:400;display:flex;flex-direction:column;gap:12px;
}
.sticky-cta-item{
  position:relative;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);transition:transform .2s ease;isolation:isolate;
}
.sticky-cta-item::before{
  content:"";position:absolute;inset:0;border-radius:50%;background:inherit;z-index:-1;
  animation:cta-pulse 2.2s ease-out infinite;
}
.sticky-cta-item:nth-child(2)::before{animation-delay:.3s;}
.sticky-cta-item:nth-child(3)::before{animation-delay:.6s;}
.sticky-cta-item:nth-child(4)::before{animation-delay:.9s;}
.sticky-cta-item svg{width:24px;height:24px;position:relative;z-index:1;}
.sticky-cta-item:hover{transform:scale(1.1);}
@keyframes cta-pulse{
  0%{transform:scale(1);opacity:.55;}
  100%{transform:scale(1.9);opacity:0;}
}

.back-to-top{
  position:fixed;right:22px;bottom:282px;z-index:400;width:48px;height:48px;border-radius:50%;
  background:var(--navy-900);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s ease;
}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top svg{width:20px;height:20px;}

@media (max-width:1080px){
  .oem-grid{grid-template-columns:1fr;gap:36px;}
  .blog-grid{grid-template-columns:repeat(2,1fr);}
  .video-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .oem-cards{grid-template-columns:1fr;}
  .blog-grid,.video-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  body{padding-bottom:60px;}
  .sticky-cta{
    left:0;right:0;bottom:0;top:auto;width:100%;flex-direction:row;gap:0;
    background:#fff;box-shadow:0 -6px 18px rgba(10,38,71,.14);
  }
  .sticky-cta-item{flex:1;width:auto;height:60px;border-radius:0;}
  .sticky-cta-item::before{display:none;}
  .back-to-top{right:14px;bottom:74px;width:42px;height:42px;}
}

/* =========================================================
   FAQ
   ========================================================= */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);transition:box-shadow .2s,border-color .2s;overflow:hidden;
}
.faq-item.is-open{border-color:var(--blue-600);box-shadow:var(--shadow-md);}
.faq-trigger{
  width:100%;display:flex;align-items:center;gap:16px;padding:18px 22px;text-align:left;
}
.faq-q-mark{
  flex:none;width:32px;height:32px;border-radius:50%;background:var(--blue-100);color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-weight:800;font-size:14px;
}
.faq-trigger[aria-expanded="true"] .faq-q-mark{background:var(--blue-600);color:#fff;}
.faq-q-text{flex:1;font-family:var(--font-head);font-weight:700;font-size:15.5px;color:var(--navy-900);line-height:1.4;}
.faq-chevron{flex:none;color:var(--ink-300);transition:transform .25s,color .25s;}
.faq-trigger[aria-expanded="true"] .faq-chevron{transform:rotate(180deg);color:var(--blue-600);}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-panel-inner{padding:0 22px 20px 70px;color:var(--ink-500);font-size:14.5px;line-height:1.7;}

/* =========================================================
   CLOSING CTA
   ========================================================= */
.closing-cta{
  background:linear-gradient(120deg,var(--blue-100),var(--blue-50) 60%,var(--blue-100));
  padding:52px 0;overflow:hidden;position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.closing-cta::after{
  content:"";position:absolute;right:-100px;top:-100px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,180,255,.18),transparent 70%);pointer-events:none;
}
.closing-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;position:relative;z-index:1;
}
.closing-cta-copy{max-width:600px;}
.closing-cta-copy h2{color:var(--navy-800);font-size:clamp(20px,2.6vw,28px);margin-bottom:8px;}
.closing-cta-copy p{color:var(--ink-500);font-size:15px;}
.closing-cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none;}

@media (max-width:768px){
  .closing-cta-inner{flex-direction:column;align-items:flex-start;}
  .faq-item{padding:4px 16px;}
}