/* roulang page: index */
:root{
  --bg:#07070d;
  --bg-2:#0e0e1e;
  --panel:#111124;
  --panel-2:#17172e;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(163,230,53,.35);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --lime:#a3e635;
  --lime-2:#84cc16;
  --cyan:#06b6d4;
  --pink:#f43f5e;
  --gold:#facc15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.85);
  --glow:0 0 0 1px rgba(163,230,53,.22), 0 0 28px -6px rgba(163,230,53,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -8%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(900px 520px at -5% 12%, rgba(163,230,53,.10), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.grid-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  pointer-events:none;
}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,13,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));
  color:#06101a;
  box-shadow:var(--glow);
}
.brand-text{font-weight:800;font-size:15px;line-height:1.25;max-width:290px}
.brand-text span{display:block;color:var(--muted);font-weight:500;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;color:var(--soft);font-weight:600;font-size:14px;
  transition:.2s ease;white-space:nowrap;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#06101a;background:linear-gradient(135deg,var(--lime),#bef264)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;
  border:1px solid transparent;cursor:pointer;transition:.22s ease;white-space:nowrap;
}
.btn-ghost{color:var(--soft);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
.btn-primary{
  background:linear-gradient(135deg,var(--lime),#bef264);color:#06101a;
  box-shadow:0 0 15px rgba(163,230,53,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.55)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;box-shadow:0 0 18px rgba(6,182,212,.42)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(6,182,212,.6)}
.btn-outline{color:var(--text);border-color:rgba(255,255,255,.2);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 18px}
.mobile-menu a{display:block;padding:12px 4px;color:var(--soft);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-actions{display:flex;gap:10px;padding-top:14px}
.mobile-actions .btn{flex:1;padding:12px 10px}
/* Hero */
.hero{position:relative;overflow:hidden;padding:64px 0 54px;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/638c40f0fd4f2782.jpg') center/cover no-repeat;
  opacity:.20;filter:saturate(1.15);
}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,.35),rgba(7,7,13,.96))}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:stretch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(163,230,53,.08);color:var(--lime);
  font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.hero h1{font-size:clamp(30px,4.4vw,54px);line-height:1.12;font-weight:900;margin:18px 0 0}
.hero h1 .hl{background:linear-gradient(100deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--soft);font-size:16.5px;margin:18px 0 0;max-width:660px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;font-weight:600;color:var(--soft)}
.chip i{color:var(--lime)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.portal{padding:22px;border-radius:24px;background:linear-gradient(165deg,rgba(23,23,46,.96),rgba(11,11,24,.96));border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column}
.portal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.portal-head h2{font-size:15px;font-weight:800;margin:0;letter-spacing:.02em}
.live-dot{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:var(--lime)}
.live-dot::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px var(--lime);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35;transform:scale(.85)}}
.portal-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.portal-item{
  display:flex;align-items:center;gap:12px;padding:12px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);transition:.2s ease;
}
.portal-item:hover{border-color:var(--line-2);transform:translateY(-2px)}
.portal-item i{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;background:rgba(6,182,212,.14);color:#22d3ee}
.portal-item b{display:block;font-size:13.5px}
.portal-item small{color:var(--muted);font-size:11.5px}
.portal-foot{margin-top:auto;padding-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.portal-stat{padding:12px 10px;border-radius:14px;background:rgba(163,230,53,.07);border:1px solid rgba(163,230,53,.18);text-align:center}
.portal-stat strong{display:block;font-size:19px;color:var(--lime)}
.portal-stat span{font-size:11px;color:var(--muted)}
/* Sections */
main section{position:relative;padding:74px 0}
main section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#22d3ee;margin-bottom:12px}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.2;font-weight:900;margin:0}
.sec-head p{color:var(--muted);margin:14px 0 0;font-size:15.5px}
.lead-left{max-width:720px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(165deg,rgba(23,23,46,.9),rgba(12,12,26,.9));
  padding:24px;transition:.25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.card .icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(163,230,53,.18),rgba(6,182,212,.18));color:var(--lime);font-size:19px;margin-bottom:16px}
.card h3{font-size:18px;font-weight:800;margin:0 0 10px}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.card ul{margin:14px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
.card ul li{margin-bottom:7px}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-card{overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);transition:.25s ease}
.case-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.case-card img{height:190px;width:100%;object-fit:cover}
.case-body{padding:20px}
.case-body span{font-size:12px;font-weight:800;color:#22d3ee;letter-spacing:.08em;text-transform:uppercase}
.case-body h3{font-size:17px;margin:9px 0 8px;font-weight:800}
.case-body p{color:var(--muted);font-size:14px;margin:0}
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{padding:24px 20px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(170deg,rgba(163,230,53,.09),rgba(12,12,26,.95));text-align:left}
.stat strong{display:block;font-size:clamp(24px,3vw,34px);font-weight:900;color:var(--lime);line-height:1.1}
.stat span{display:block;color:var(--muted);font-size:13px;margin-top:8px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-col{padding:28px}
.compare-col.before{background:rgba(244,63,94,.07)}
.compare-col.after{background:rgba(163,230,53,.08);border-left:1px solid var(--line)}
.compare-col h3{font-size:17px;margin:0 0 16px;font-weight:800}
.compare-col.before h3{color:#fda4af}
.compare-col.after h3{color:var(--lime)}
.compare-col ul{margin:0;padding-left:18px;color:var(--soft);font-size:14.5px}
.compare-col ul li{margin-bottom:10px}
.method{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:center}
.method-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.method-img img{width:100%;height:100%;min-height:320px;object-fit:cover}
.steps{display:grid;gap:14px}
.step{display:flex;gap:16px;padding:18px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(255,255,255,.03)}
.step b{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;font-weight:900}
.step h3{font-size:16px;margin:0 0 6px;font-weight:800}
.step p{margin:0;color:var(--muted);font-size:14px}
.news-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px}
.news-list{display:grid;gap:15px}
.news-item{display:grid;grid-template-columns:170px 1fr;gap:18px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.025);transition:.22s ease}
.news-item:hover{border-color:var(--line-2);transform:translateY(-3px)}
.news-item img{width:100%;height:120px;object-fit:cover;border-radius:12px}
.news-item .meta{font-size:12px;color:#22d3ee;font-weight:700;margin-bottom:7px}
.news-item h3{font-size:16.5px;line-height:1.4;margin:0 0 8px;font-weight:800}
.news-item p{margin:0;color:var(--muted);font-size:13.8px}
.news-side{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(170deg,rgba(6,182,212,.1),rgba(12,12,26,.95));height:fit-content}
.news-side h3{font-size:16px;margin:0 0 14px;font-weight:800}
.news-side a{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--soft);font-weight:600}
.news-side a:last-child{border-bottom:0}
.news-side a:hover{color:var(--lime)}
.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.topic{padding:24px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(160deg,rgba(23,23,46,.92),rgba(12,12,26,.95));transition:.24s ease}
.topic:hover{transform:translateY(-4px);border-color:rgba(6,182,212,.5);box-shadow:0 0 30px -10px rgba(6,182,212,.5)}
.topic .badge{display:inline-block;padding:5px 11px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;background:rgba(244,63,94,.14);color:#fb7185;margin-bottom:14px}
.topic h3{font-size:18px;font-weight:800;margin:0 0 10px}
.topic p{color:var(--muted);font-size:14px;margin:0 0 16px}
.topic a{font-weight:800;color:var(--lime);font-size:14px}
.topic a:hover{color:#bef264}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.testimonial{padding:24px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.03)}
.testimonial p{margin:0;color:var(--soft);font-size:14.5px}
.testimonial .who{display:flex;align-items:center;gap:12px;margin-top:18px}
.testimonial .avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:900;background:linear-gradient(135deg,var(--lime),var(--cyan));color:#06101a}
.testimonial b{display:block;font-size:14px}
.testimonial span{font-size:12px;color:var(--muted)}
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.03);overflow:hidden}
.faq-item button{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;background:transparent;border:0;color:#fff;font-weight:700;font-size:15.5px;text-align:left;cursor:pointer}
.faq-item button i{transition:.25s ease;color:var(--lime)}
.faq-item.open button i{transform:rotate(180deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px}
.faq-item.open .faq-body{max-height:260px;padding-bottom:18px}
.faq-body p{margin:0;color:var(--muted);font-size:14.5px}
.cta-band{position:relative;overflow:hidden;border-radius:26px;padding:46px;border:1px solid var(--line-2);background:linear-gradient(120deg,rgba(163,230,53,.16),rgba(6,182,212,.16)),rgba(12,12,26,.96)}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin:0 0 14px;font-weight:900}
.cta-band p{color:var(--soft);max-width:720px;margin:0}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.pay-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pay{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;font-weight:700;color:var(--soft)}
.pay i{color:#22d3ee}
/* Footer */
.site-footer{padding:58px 0 28px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
.footer-brand p{color:var(--muted);font-size:14px;margin:16px 0 0}
.footer-col h3{font-size:14px;font-weight:800;margin:0 0 16px;color:#fff}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:13.5px;margin-bottom:10px}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{margin-top:38px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.badge-18{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;border:1px solid rgba(250,204,21,.45);color:var(--gold);font-weight:900;font-size:13px}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.8);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#fff;font-size:20px;opacity:.75;transition:.25s ease;
  animation:floaty 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.95) translateY(3px)}
.fab::after{content:'';position:absolute;top:-2px;right:-2px;width:13px;height:13px;border-radius:50%;background:var(--pink);box-shadow:0 0 0 2px #fff}
@keyframes floaty{0%,100%{translate:0 0}50%{translate:0 -7px}}
.anchor-offset{scroll-margin-top:90px}
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-band{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-layout{grid-template-columns:1fr}
}
@media (max-width:900px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .mobile-menu.open{display:block}
  .grid-3,.case-grid,.testimonial-grid,.topics{grid-template-columns:1fr 1fr}
  .method{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .hero{padding:42px 0 40px}
  main section{padding:56px 0}
  .grid-3,.grid-4,.grid-2,.case-grid,.testimonial-grid,.topics,.stats-band{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
  .news-item img{height:190px}
  .compare{grid-template-columns:1fr}
  .compare-col.after{border-left:0;border-top:1px solid var(--line)}
  .cta-band{padding:28px 20px}
  .portal-grid{grid-template-columns:1fr}
  .portal-foot{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:13.5px}
}

/* roulang page: article */
:root{
  --bg:#07070d;
  --bg-2:#0e0e1e;
  --panel:#111124;
  --panel-2:#17172e;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(163,230,53,.35);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --lime:#a3e635;
  --lime-2:#84cc16;
  --cyan:#06b6d4;
  --pink:#f43f5e;
  --gold:#facc15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.85);
  --glow:0 0 0 1px rgba(163,230,53,.22), 0 0 28px -6px rgba(163,230,53,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -8%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(900px 520px at -5% 12%, rgba(163,230,53,.10), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800}
p{margin:0}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
::selection{background:rgba(163,230,53,.35);color:#fff}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:8px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,13,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));
  color:#06101a;
  box-shadow:var(--glow);
}
.brand-text{font-weight:800;font-size:15px;line-height:1.25;max-width:290px}
.brand-text span{display:block;color:var(--muted);font-weight:500;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;color:var(--soft);font-weight:600;font-size:14px;
  transition:.2s ease;white-space:nowrap;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#06101a;background:linear-gradient(135deg,var(--lime),#bef264)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;
  border:1px solid transparent;cursor:pointer;transition:.22s ease;white-space:nowrap;
}
.btn-ghost{color:var(--soft);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
.btn-primary{
  background:linear-gradient(135deg,var(--lime),#bef264);color:#06101a;
  box-shadow:0 0 15px rgba(163,230,53,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.55)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;box-shadow:0 0 18px rgba(6,182,212,.42)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(6,182,212,.6)}
.btn-outline{color:var(--text);border-color:rgba(255,255,255,.2);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 18px}
.mobile-menu a{display:block;padding:12px 4px;color:var(--soft);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-actions{display:flex;gap:10px;padding-top:14px}
.mobile-actions .btn{flex:1;padding:12px 10px}

/* Article hero */
.article-hero{position:relative;overflow:hidden;padding:56px 0 42px;border-bottom:1px solid var(--line)}
.article-hero-bg{position:absolute;inset:0;background:url('/assets/images/c4341b3032f7e908.jpg') center/cover no-repeat;opacity:.16;filter:saturate(1.1)}
.article-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,.5),rgba(7,7,13,.96))}
.article-hero-inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--soft);transition:.2s}
.breadcrumb a:hover{color:var(--lime)}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(163,230,53,.09);color:var(--lime);
  font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
}
.article-hero h1{font-size:clamp(28px,4vw,46px);line-height:1.15;margin:18px 0 0}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;color:var(--muted);font-size:13.5px}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--lime)}

/* Layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start}
main section{padding:60px 0}
main section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head .tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.section-head h2{font-size:clamp(23px,3vw,34px)}
.section-head p{color:var(--soft);margin-top:12px;font-size:15.5px}

/* Article body */
.article-card{
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);
}
.article-content{color:var(--soft);font-size:16px}
.article-content h2{font-size:clamp(21px,2.6vw,28px);color:var(--text);margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--lime)}
.article-content h3{font-size:19px;color:var(--text);margin:26px 0 10px}
.article-content p{margin:0 0 16px;line-height:1.72}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px}
.article-content li{margin-bottom:9px;line-height:1.68}
.article-content strong{color:var(--text)}
.article-content a{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:#bef264}
.article-content img{border-radius:var(--radius-sm);margin:18px 0;border:1px solid var(--line)}
.article-content blockquote{
  margin:20px 0;padding:16px 20px;border-left:4px solid var(--cyan);
  background:rgba(6,182,212,.07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--soft);
}
.article-content table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.article-content th{background:rgba(163,230,53,.09);color:var(--text);font-weight:700}
.article-content code{background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:14px;color:var(--lime)}
.notfound{text-align:center;padding:40px 20px}
.notfound i{font-size:44px;color:var(--lime);margin-bottom:18px}
.notfound h2{margin-bottom:12px}
.notfound p{color:var(--soft);margin-bottom:22px}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:18px;position:sticky;top:94px}
.side-card{
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
}
.side-card h3{font-size:15px;letter-spacing:.04em;text-transform:uppercase;color:var(--lime);margin-bottom:16px}
.side-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);transition:.2s}
.side-item:last-child{border-bottom:0}
.side-item:hover{transform:translateX(3px)}
.side-item i{width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;background:rgba(6,182,212,.14);color:#22d3ee;font-size:14px}
.side-item b{display:block;font-size:13.8px;color:var(--text);font-weight:700;line-height:1.4}
.side-item small{color:var(--muted);font-size:12px}
.side-cta{text-align:center;background:linear-gradient(160deg,rgba(163,230,53,.14),rgba(6,182,212,.08));border-color:var(--line-2)}
.side-cta h3{color:var(--text);text-transform:none;font-size:18px}
.side-cta p{color:var(--soft);font-size:13.6px;margin-bottom:16px}
.side-cta .btn{width:100%}

/* Steps / features */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feature{
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s ease;
}
.feature:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.feature-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:20px;
  background:linear-gradient(140deg,rgba(163,230,53,.2),rgba(6,182,212,.16));color:var(--lime);margin-bottom:16px;
}
.feature h3{font-size:17px;margin-bottom:9px}
.feature p{color:var(--muted);font-size:14.3px;line-height:1.62}

/* Stats */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.stat{
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;
}
.stat b{display:block;font-size:27px;font-weight:900;background:linear-gradient(100deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:13px;margin-top:6px;display:block}

/* Steps */
.step-list{display:flex;flex-direction:column;gap:0}
.step{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step-num{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-weight:900;font-size:19px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));color:#06101a;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.4px}

/* Table */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);margin-top:8px}
table.tbl{width:100%;border-collapse:collapse;font-size:14.6px;min-width:560px}
table.tbl th{background:rgba(163,230,53,.1);color:var(--text);text-align:left;padding:14px 16px;font-weight:800;font-size:13.6px;text-transform:uppercase;letter-spacing:.04em}
table.tbl td{padding:14px 16px;border-top:1px solid var(--line);color:var(--soft)}
table.tbl tbody tr:hover{background:rgba(255,255,255,.03)}
table.tbl td .pos{color:var(--lime);font-weight:700}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.025);margin-bottom:12px;overflow:hidden;transition:.25s}
.faq-item[open]{border-color:var(--line-2);background:rgba(163,230,53,.045)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:15.4px;color:var(--text);
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:22px;font-weight:400;color:var(--lime);transition:.25s;line-height:1}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.6px;line-height:1.7}

/* CTA */
.cta-band{
  border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(163,230,53,.14),rgba(6,182,212,.1));
  border:1px solid var(--line-2);
  padding:42px;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{content:'';position:absolute;inset:0;background:url('/assets/images/daf69c9520e57765.jpg') center/cover no-repeat;opacity:.12}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,3vw,32px)}
.cta-band p{color:var(--soft);max-width:640px;margin:14px auto 0;font-size:15.4px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px}

/* Channels */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.channel{
  display:flex;align-items:center;gap:12px;padding:15px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);transition:.22s;
}
.channel:hover{border-color:var(--line-2);transform:translateY(-3px)}
.channel i{font-size:20px;color:var(--lime);width:26px;text-align:center}
.channel b{font-size:14px}
.channel small{display:block;color:var(--muted);font-size:11.6px}

/* Related */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.related-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.03);transition:.25s;
}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.related-card .thumb{height:160px;overflow:hidden}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.related-card:hover .thumb img{transform:scale(1.06)}
.related-card .body{padding:18px}
.related-card .body h3{font-size:15.6px;line-height:1.42}
.related-card .body p{color:var(--muted);font-size:13.4px;margin-top:8px}

/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(7,7,13,.4),rgba(3,3,8,.96));border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:13.8px;line-height:1.7;max-width:360px}
.badge-18{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:11px;border:1px solid var(--line-2);color:var(--lime);font-weight:900;font-size:14px}
.footer-col h3{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--text);margin-bottom:16px}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:13.6px;padding:5px 0;transition:.2s}
.footer-col a:hover{color:var(--lime);transform:translateX(3px)}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:var(--muted);font-size:12.8px;
}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;font-size:22px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(10px);
  color:var(--lime);border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.9),rgba(7,7,13,.9)),linear-gradient(140deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:.25s ease;opacity:.85;
}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 30px rgba(163,230,53,.6)}
.fab:active{transform:scale(.95)}
.fab .dot{position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:50%;background:var(--pink);box-shadow:0 0 0 2px #fff}

@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .grid-3,.related-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid,.stat-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center}
  .mobile-menu.open{display:block}
  .brand-text{font-size:13.4px;max-width:200px}
  .grid-3,.grid-2,.related-grid,.channel-grid,.stat-row{grid-template-columns:1fr}
  main section{padding:48px 0}
  .article-card{padding:20px}
  .step{grid-template-columns:44px 1fr;gap:14px}
  .step-num{width:44px;height:44px;border-radius:13px;font-size:16px}
  .cta-band{padding:30px 20px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-hero{padding:40px 0 32px}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .fab{bottom:88px}
}

/* roulang page: category1 */
:root{
  --bg:#07070d;
  --bg-2:#0e0e1e;
  --panel:#111124;
  --panel-2:#17172e;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(163,230,53,.35);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --lime:#a3e635;
  --lime-2:#84cc16;
  --cyan:#06b6d4;
  --pink:#f43f5e;
  --gold:#facc15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.85);
  --glow:0 0 0 1px rgba(163,230,53,.22), 0 0 28px -6px rgba(163,230,53,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -8%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(900px 520px at -5% 12%, rgba(163,230,53,.10), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
h1,h2,h3,h4{margin:0}
p{margin:0}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.grid-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.05) 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%);
  pointer-events:none;
}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  background:rgba(7,7,13,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));
  color:#06101a;
  box-shadow:var(--glow);
}
.brand-text{font-weight:800;font-size:15px;line-height:1.25;max-width:290px}
.brand-text span{display:block;color:var(--muted);font-weight:500;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;color:var(--soft);font-weight:600;font-size:14px;
  transition:.2s ease;white-space:nowrap;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#06101a;background:linear-gradient(135deg,var(--lime),#bef264)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;
  border:1px solid transparent;cursor:pointer;transition:.22s ease;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.btn-ghost{color:var(--soft);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
.btn-primary{
  background:linear-gradient(135deg,var(--lime),#bef264);color:#06101a;
  box-shadow:0 0 15px rgba(163,230,53,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;box-shadow:0 0 18px rgba(6,182,212,.42)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(6,182,212,.6)}
.btn-outline{color:var(--text);border-color:rgba(255,255,255,.2);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 18px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 4px;color:var(--soft);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-actions{display:flex;gap:10px;padding-top:14px}
.mobile-actions .btn{flex:1;padding:12px 10px}
/* Hero */
.cat-hero{position:relative;overflow:hidden;padding:58px 0 54px;border-bottom:1px solid var(--line)}
.cat-hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/c4341b3032f7e908.jpg') center/cover no-repeat;
  opacity:.18;filter:saturate(1.15);
}
.cat-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,.4),rgba(7,7,13,.96))}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:34px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(163,230,53,.08);color:var(--lime);
  font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.cat-hero h1{font-size:clamp(29px,4.2vw,50px);line-height:1.14;font-weight:900;margin:18px 0 0}
.cat-hero h1 .hl{background:linear-gradient(100deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--soft);font-size:16.5px;margin:18px 0 0;max-width:640px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;font-weight:600;color:var(--soft)}
.chip i{color:var(--lime)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-side{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  padding:22px;box-shadow:var(--shadow);
}
.hero-side h3{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--lime);font-weight:800}
.md5-meter{margin-top:16px;display:grid;gap:12px}
.md5-row{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.md5-row i{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;background:rgba(6,182,212,.14);color:#22d3ee}
.md5-row b{display:block;font-size:13.5px}
.md5-row small{color:var(--muted);font-size:11.5px;word-break:break-all}
.hashline{
  margin-top:16px;padding:12px 14px;border-radius:12px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:#a7f3d0;
  background:rgba(16,185,129,.09);border:1px dashed rgba(163,230,53,.3);word-break:break-all;
}
/* Sections */
main section{position:relative;padding:70px 0}
main section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:740px}
.sec-head.start{text-align:left}
.sec-tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.sec-head h2{font-size:clamp(23px,3vw,36px);line-height:1.2;font-weight:900;margin-top:12px}
.sec-head p{color:var(--muted);margin-top:14px;font-size:15.5px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.spacer-lg{margin-top:40px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  padding:24px;transition:.24s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:19px;
  background:rgba(163,230,53,.12);color:var(--lime);margin-bottom:16px;
}
.card h3{font-size:18px;font-weight:800;line-height:1.3}
.card p{color:var(--muted);font-size:14.5px;margin-top:10px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.badge-lime{background:rgba(163,230,53,.14);color:var(--lime)}
.badge-cyan{background:rgba(6,182,212,.16);color:#67e8f9}
.badge-pink{background:rgba(244,63,94,.16);color:#fda4af}
.badge-gold{background:rgba(250,204,21,.16);color:#fde68a}
/* Benefit split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.split-figure{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.split-figure img{width:100%;height:100%;object-fit:cover;min-height:320px}
.split-figure .tagline{
  position:absolute;left:16px;bottom:16px;right:16px;padding:14px 16px;border-radius:14px;
  background:rgba(7,7,13,.78);backdrop-filter:blur(8px);border:1px solid var(--line);
  font-size:13.5px;color:var(--soft);
}
.checklist{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--soft)}
.checklist li i{color:var(--lime);margin-top:4px}
/* Flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:38px;counter-reset:step}
.flow-item{
  position:relative;padding:26px 20px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(170deg,var(--panel),rgba(17,17,36,.4));
}
.flow-item::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-14px;left:20px;font-size:13px;font-weight:900;letter-spacing:.1em;
  padding:6px 12px;border-radius:999px;background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;
}
.flow-item h3{font-size:16.5px;font-weight:800;margin-top:6px}
.flow-item p{color:var(--muted);font-size:14px;margin-top:9px}
/* Data strip */
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.data-item{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.03);text-align:left}
.data-item b{display:block;font-size:28px;font-weight:900;background:linear-gradient(120deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.data-item span{display:block;color:var(--muted);font-size:13.5px;margin-top:6px}
/* Roadmap / scene list */
.scene{display:grid;grid-template-columns:230px 1fr;gap:22px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}
.scene:last-child{border-bottom:0}
.scene-key{display:flex;align-items:center;gap:12px}
.scene-key .dot{width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,var(--lime),var(--cyan))}
.scene-key h3{font-size:17px;font-weight:800}
.scene p{color:var(--muted);font-size:15px}
/* List panel (cms) */
.list-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.list-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:linear-gradient(170deg,var(--panel),var(--panel-2));transition:.24s ease;
}
.list-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.list-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(255,255,255,.03)}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:.4s ease}
.list-card:hover .list-thumb img{transform:scale(1.06)}
.list-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.list-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:11.5px;color:var(--muted)}
.list-body h3{font-size:16px;font-weight:800;line-height:1.35}
.list-body h3 a:hover{color:var(--lime)}
.list-body p{color:var(--muted);font-size:13.5px;flex:1}
.list-body .readmore{color:var(--cyan);font-weight:700;font-size:13px}
.list-body .readmore:hover{color:var(--lime)}
.empty-note{padding:26px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);text-align:center}
/* FAQ */
.faq{margin-top:34px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{
  cursor:pointer;font-weight:700;font-size:16.5px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:22px;color:var(--lime);font-weight:400;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);font-size:15px;margin-top:14px;max-width:900px}
/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;border:1px solid var(--line-2);
  background:
    radial-gradient(600px 300px at 12% 20%, rgba(163,230,53,.16), transparent 60%),
    linear-gradient(140deg,var(--panel),#0b0b18);
  padding:46px 40px;display:grid;grid-template-columns:1.4fr .6fr;gap:28px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,3vw,34px);font-weight:900;line-height:1.2}
.cta-band p{color:var(--soft);margin-top:14px;font-size:15.5px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
/* Footer */
.site-footer{border-top:1px solid var(--line);background:rgba(7,7,13,.9);padding:56px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:400px}
.footer-brand .brand{margin-bottom:0}
.badge-18{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;border:1px solid rgba(244,63,94,.5);color:#fda4af;font-weight:900;font-size:13px}
.footer-col h3{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--lime);font-weight:800;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:13px;
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;color:#04131a;font-size:20px;
  background:linear-gradient(135deg,var(--cyan),#22d3ee);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  border:1px solid rgba(255,255,255,.3);
  transition:.25s ease;
}
.fab::after{
  content:'';position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:999px;
  background:var(--pink);border:2px solid #07070d;animation:pulse 1.8s infinite;
}
.fab:hover{transform:scale(1.1);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.94)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
/* Responsive */
@media (max-width:1024px){
  .cat-hero-inner{grid-template-columns:1fr}
  .grid-4,.data-strip,.flow{grid-template-columns:repeat(2,1fr)}
  .list-panel{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px 26px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:860px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .grid-3{grid-template-columns:1fr}
  .grid-2,.split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .container{padding:0 16px}
  main section{padding:52px 0}
  .cat-hero{padding:44px 0 40px}
  .grid-4,.data-strip,.flow,.list-panel{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr;gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .fab{bottom:88px;left:12px;width:52px;height:52px}
}

/* roulang page: category3 */
:root{
  --bg:#07070d;
  --bg-2:#0e0e1e;
  --panel:#111124;
  --panel-2:#17172e;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(163,230,53,.35);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --lime:#a3e635;
  --lime-2:#84cc16;
  --cyan:#06b6d4;
  --pink:#f43f5e;
  --gold:#facc15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.85);
  --glow:0 0 0 1px rgba(163,230,53,.22), 0 0 28px -6px rgba(163,230,53,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -8%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(900px 520px at -5% 12%, rgba(163,230,53,.10), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.grid-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  pointer-events:none;
}
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,13,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));
  color:#06101a;
  box-shadow:var(--glow);
}
.brand-text{font-weight:800;font-size:15px;line-height:1.25;max-width:290px}
.brand-text span{display:block;color:var(--muted);font-weight:500;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{padding:9px 14px;border-radius:999px;color:var(--soft);font-weight:600;font-size:14px;transition:.2s ease;white-space:nowrap}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#06101a;background:linear-gradient(135deg,var(--lime),#bef264)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid transparent;cursor:pointer;transition:.22s ease;white-space:nowrap}
.btn-ghost{color:var(--soft);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
.btn-primary{background:linear-gradient(135deg,var(--lime),#bef264);color:#06101a;box-shadow:0 0 15px rgba(163,230,53,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.55)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;box-shadow:0 0 18px rgba(6,182,212,.42)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(6,182,212,.6)}
.btn-outline{color:var(--text);border-color:rgba(255,255,255,.2);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 18px}
.mobile-menu a{display:block;padding:12px 4px;color:var(--soft);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-actions{display:flex;gap:10px;padding-top:14px}
.mobile-actions .btn{flex:1;padding:12px 10px}
.category-hero{position:relative;overflow:hidden;padding:72px 0 62px;border-bottom:1px solid var(--line)}
.category-hero-bg{position:absolute;inset:0;background:url('/assets/images/584bc31519e8bb8a.jpg') center/cover no-repeat;opacity:.18}
.category-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,.42),rgba(7,7,13,.96))}
.category-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:end}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;border:1px solid var(--line-2);background:rgba(163,230,53,.08);color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.category-hero h1{font-size:clamp(30px,4.4vw,54px);line-height:1.12;font-weight:900;margin:18px 0 0;max-width:840px}
.category-hero h1 .hl{background:linear-gradient(100deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--soft);font-size:16.5px;margin:18px 0 0;max-width:760px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;font-weight:600;color:var(--soft)}
.chip i{color:var(--lime)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-panel{border:1px solid var(--line);background:linear-gradient(160deg,rgba(17,17,36,.92),rgba(14,14,30,.82));border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.hero-panel h2{font-size:18px;margin:0 0 14px;font-weight:800}
.panel-list{display:grid;gap:10px}
.panel-row{display:flex;align-items:center;gap:12px;padding:12px;border-radius:14px;background:rgba(255,255,255,.035);border:1px solid var(--line)}
.panel-row i{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;background:rgba(6,182,212,.14);color:#22d3ee}
.panel-row b{display:block;font-size:13.5px}
.panel-row small{color:var(--muted);font-size:11.5px}
main section{position:relative;padding:72px 0}
main section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:end;margin-bottom:28px}
.section-head h2{font-size:clamp(24px,3vw,38px);line-height:1.2;font-weight:900;margin:10px 0 0}
.section-head p{color:var(--muted);margin:0;font-size:15px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.feature-card,.scenario-card,.step-card,.faq-item,.content-card{border:1px solid var(--line);background:linear-gradient(160deg,rgba(17,17,36,.9),rgba(14,14,30,.72));border-radius:var(--radius);padding:22px;transition:.24s ease}
.feature-card:hover,.scenario-card:hover,.step-card:hover,.content-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow)}
.card-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(163,230,53,.18),rgba(6,182,212,.16));color:var(--lime);font-size:19px;margin-bottom:16px}
.feature-card h3,.scenario-card h3,.step-card h3,.content-card h3{font-size:18px;font-weight:800;margin:0 0 9px}
.feature-card p,.scenario-card p,.step-card p,.content-card p{color:var(--muted);font-size:14.5px;margin:0}
.tag{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;border:1px solid rgba(6,182,212,.28);background:rgba(6,182,212,.08);color:#67e8f9;font-size:12px;font-weight:700;margin-bottom:12px}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.metric{border:1px solid var(--line);border-radius:16px;padding:18px;background:rgba(255,255,255,.035)}
.metric strong{display:block;font-size:24px;color:var(--lime);line-height:1.2}
.metric span{display:block;color:var(--muted);font-size:12.5px;margin-top:6px}
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:36px;align-items:center}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;min-height:360px;object-fit:cover}
.split-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(7,7,13,.75))}
.media-note{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;padding:16px;border-radius:16px;background:rgba(7,7,13,.76);border:1px solid var(--line);backdrop-filter:blur(14px)}
.media-note b{display:block;font-size:15px}
.media-note span{color:var(--muted);font-size:12.5px}
.check-list{display:grid;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:11px;color:var(--soft);font-size:14.5px;list-style:none}
.check-list i{color:var(--lime);margin-top:4px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step-card{position:relative;padding-top:26px}
.step-card::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:14px;right:18px;color:rgba(255,255,255,.1);font-size:30px;font-weight:900}
.service-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:26px}
.service-item{display:flex;align-items:center;justify-content:center;gap:9px;padding:14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.035);font-weight:700;font-size:13px;color:var(--soft)}
.service-item i{color:var(--lime)}
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{padding:0;overflow:hidden}
.faq-item button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 22px;background:transparent;border:0;color:var(--text);font-weight:800;text-align:left;cursor:pointer}
.faq-item button i{transition:.25s ease;color:var(--lime)}
.faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14.5px}
.faq-item.open .faq-answer{display:block}
.faq-item.open button i{transform:rotate(45deg)}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.content-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.content-card img{width:100%;height:190px;object-fit:cover}
.content-body{padding:18px;display:flex;flex-direction:column;flex:1}
.content-meta{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px;margin-bottom:9px}
.content-card h3{font-size:16px;line-height:1.4}
.content-card .read-link{margin-top:auto;padding-top:14px;color:var(--lime);font-weight:800;font-size:13.5px}
.category-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.category-link{display:block;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.035);transition:.24s ease}
.category-link:hover{border-color:var(--line-2);transform:translateY(-3px)}
.category-link i{font-size:20px;color:var(--cyan);margin-bottom:14px}
.category-link strong{display:block;font-size:17px;margin-bottom:7px}
.category-link span{color:var(--muted);font-size:13.5px}
.cta-band{border:1px solid rgba(163,230,53,.24);border-radius:28px;padding:34px;background:linear-gradient(120deg,rgba(163,230,53,.12),rgba(6,182,212,.08));display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
.cta-band h2{font-size:clamp(25px,3vw,38px);line-height:1.2;margin:0 0 12px;font-weight:900}
.cta-band p{color:var(--soft);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.site-footer{border-top:1px solid var(--line);padding:54px 0 24px;background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(7,7,13,.95))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.footer-brand p{color:var(--muted);font-size:13.5px;max-width:420px;margin:16px 0 0}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col h3{font-size:14px;margin:0 0 4px;font-weight:800}
.footer-col a,.footer-col span{color:var(--muted);font-size:13px}
.footer-col a:hover{color:var(--lime)}
.badge-18{display:inline-grid;place-items:center;min-width:38px;height:26px;padding:0 8px;border-radius:8px;border:1px solid rgba(244,63,94,.35);background:rgba(244,63,94,.1);color:#fda4af;font-weight:800;font-size:12px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;align-items:center;border-top:1px solid var(--line);margin-top:36px;padding-top:22px;color:var(--muted);font-size:12.5px}
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:999px;display:grid;place-items:center;color:#04131a;background:linear-gradient(135deg,var(--lime),var(--cyan));box-shadow:0 0 22px rgba(6,182,212,.45);transition:.25s ease;opacity:.85}
.fab:hover{transform:scale(1.1) rotate(8deg);opacity:1}
.fab:active{transform:scale(.95) translateY(3px)}
.fab::after{content:'';position:absolute;top:5px;right:5px;width:12px;height:12px;border-radius:999px;background:var(--pink);border:2px solid #fff}
@media (max-width:1024px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .mobile-menu.open{display:block}
  .category-hero-inner,.split,.section-head,.cta-band{grid-template-columns:1fr}
  .grid-3,.content-grid,.category-matrix{grid-template-columns:repeat(2,1fr)}
  .steps,.metric-strip{grid-template-columns:repeat(2,1fr)}
  .service-strip{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:768px){
  main section{padding:56px 0}
  .category-hero{padding:54px 0 48px}
  .grid-2,.grid-3,.content-grid,.category-matrix,.steps,.metric-strip,.service-strip{grid-template-columns:1fr}
  .split-media img{min-height:280px}
  .brand-text{max-width:182px;font-size:13px}
  .brand-text span{font-size:10.5px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-wrap{min-height:68px}
  .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:11px;font-size:16px}
  .brand-text{max-width:164px;font-size:12px}
  .category-hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .btn{padding:11px 16px}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .mobile-actions{flex-direction:column}
  .fab{left:12px;bottom:86px;width:52px;height:52px}
}

/* roulang page: category2 */
:root{
  --bg:#07070d;
  --bg-2:#0e0e1e;
  --panel:#111124;
  --panel-2:#17172e;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(163,230,53,.35);
  --text:#f8fafc;
  --muted:#94a3b8;
  --soft:#cbd5e1;
  --lime:#a3e635;
  --lime-2:#84cc16;
  --cyan:#06b6d4;
  --pink:#f43f5e;
  --gold:#facc15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -22px rgba(0,0,0,.85);
  --glow:0 0 0 1px rgba(163,230,53,.22), 0 0 28px -6px rgba(163,230,53,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -8%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(900px 520px at -5% 12%, rgba(163,230,53,.10), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,13,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  background:linear-gradient(140deg,var(--lime),var(--cyan));
  color:#06101a;
  box-shadow:var(--glow);
}
.brand-text{font-weight:800;font-size:15px;line-height:1.25;max-width:290px}
.brand-text span{display:block;color:var(--muted);font-weight:500;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;color:var(--soft);font-weight:600;font-size:14px;
  transition:.2s ease;white-space:nowrap;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#06101a;background:linear-gradient(135deg,var(--lime),#bef264)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;
  border:1px solid transparent;cursor:pointer;transition:.22s ease;white-space:nowrap;
}
.btn-ghost{color:var(--soft);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
.btn-primary{
  background:linear-gradient(135deg,var(--lime),#bef264);color:#06101a;
  box-shadow:0 0 15px rgba(163,230,53,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.55)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),#22d3ee);color:#04131a;box-shadow:0 0 18px rgba(6,182,212,.42)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(6,182,212,.6)}
.btn-outline{color:var(--text);border-color:rgba(255,255,255,.2);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 18px}
.mobile-menu a{display:block;padding:12px 4px;color:var(--soft);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-actions{display:flex;gap:10px;padding-top:14px}
.mobile-actions .btn{flex:1;padding:12px 10px}
/* Section base */
main section{position:relative;padding:74px 0}
main section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(163,230,53,.08);color:var(--lime);
  font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.18;font-weight:900;margin:14px 0 12px}
.sec-head p{color:var(--muted);font-size:15.5px;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
/* Hero */
.page-hero{position:relative;overflow:hidden;padding:60px 0 56px;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/af05cd34b2ffec12.jpg') center/cover no-repeat;
  opacity:.22;filter:saturate(1.15);
}
.page-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,13,.45),rgba(7,7,13,.97))}
.page-hero .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:34px;align-items:stretch}
.page-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.12;font-weight:900;margin:18px 0 0}
.page-hero h1 .hl{background:linear-gradient(100deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero .lead{color:var(--soft);font-size:16.5px;margin:18px 0 0;max-width:680px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;font-weight:600;color:var(--soft)}
.chip i{color:var(--lime)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* Session panel */
.session-panel{
  border:1px solid var(--line);border-radius:22px;background:linear-gradient(160deg,rgba(23,23,46,.95),rgba(11,11,24,.92));
  padding:22px;box-shadow:var(--shadow);
}
.session-panel .panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.live-dot{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--lime)}
.live-dot i{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 12px var(--lime);animation:pulse 1.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.session-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat-box{border:1px solid var(--line);border-radius:14px;padding:14px;background:rgba(255,255,255,.03)}
.stat-box b{display:block;font-size:22px;line-height:1.1;color:#fff}
.stat-box small{display:block;color:var(--muted);font-size:11.5px;margin-top:6px}
.session-list{margin-top:16px;border-top:1px solid var(--line);padding-top:14px}
.s-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line)}
.s-row:last-child{border-bottom:0}
.s-row span{color:var(--muted);font-size:13px}
.s-row strong{font-size:14px;font-weight:700}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;font-size:11.5px;font-weight:800;letter-spacing:.03em}
.tag-tai{background:rgba(6,182,212,.14);color:#67e8f9;border:1px solid rgba(6,182,212,.32)}
.tag-xiu{background:rgba(244,63,94,.12);color:#fda4af;border:1px solid rgba(244,63,94,.32)}
.tag-lime{background:rgba(163,230,53,.12);color:#d9f99d;border:1px solid rgba(163,230,53,.32)}
/* Cards */
.card{
  border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  padding:22px;transition:.22s ease;
}
.card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.card h3{margin:14px 0 8px;font-size:17.5px;font-weight:800}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.icon-box{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:rgba(163,230,53,.12);color:var(--lime);font-size:18px}
.icon-box.cyan{background:rgba(6,182,212,.12);color:#22d3ee}
.icon-box.pink{background:rgba(244,63,94,.12);color:#fb7185}
.icon-box.gold{background:rgba(250,204,21,.12);color:#facc15}
/* Pattern section */
.pattern-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:34px;align-items:start}
.pattern-list{display:flex;flex-direction:column;gap:14px}
.pattern-item{display:flex;gap:14px;padding:16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025)}
.pattern-item .idx{flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(6,182,212,.14);color:#22d3ee;font-weight:800;font-size:13px}
.pattern-item b{display:block;font-size:15px}
.pattern-item p{margin:4px 0 0;color:var(--muted);font-size:13.5px}
.image-frame{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.image-frame img{width:100%;height:100%;object-fit:cover;min-height:280px}
.image-frame .frame-cap{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(0deg,rgba(7,7,13,.96),transparent)}
.image-frame .frame-cap b{display:block;font-size:16px}
.image-frame .frame-cap span{color:var(--muted);font-size:13px}
/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{border:1px solid var(--line);border-radius:16px;padding:20px;background:rgba(255,255,255,.03);position:relative}
.step-num{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.step h3{margin:10px 0 8px;font-size:16.5px}
.step p{margin:0;color:var(--muted);font-size:13.5px}
/* Metrics strip */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.metric{border-top:2px solid var(--lime);padding:18px 16px;background:rgba(255,255,255,.03);border-radius:0 0 14px 14px}
.metric b{display:block;font-size:27px;line-height:1.1;font-weight:900}
.metric span{display:block;color:var(--muted);font-size:12.5px;margin-top:6px}
/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.028);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;background:transparent;border:0;color:var(--text);font-weight:700;text-align:left}
.faq-q i{color:var(--lime);transition:.2s}
.faq-a{display:none;padding:0 20px 18px;color:var(--muted);font-size:14.5px}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q i{transform:rotate(45deg)}
/* CTA */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line-2);border-radius:22px;
  padding:36px;background:linear-gradient(125deg,rgba(163,230,53,.13),rgba(6,182,212,.10),rgba(17,17,36,.92));
  display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;
}
.cta-band h2{margin:0 0 10px;font-size:clamp(24px,3vw,34px)}
.cta-band p{margin:0;color:var(--soft);font-size:15px}
/* CMS list */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cms-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(255,255,255,.03);transition:.22s}
.cms-card:hover{transform:translateY(-3px);border-color:var(--line-2)}
.cms-card .thumb{width:100%;height:190px;object-fit:cover}
.cms-card .body{padding:18px}
.cms-card .meta{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-bottom:8px}
.cms-card h3{font-size:16.5px;margin:0 0 8px}
.cms-card p{color:var(--muted);font-size:13.5px;margin:0 0 14px}
.cms-more{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:700;font-size:14px}
.empty-note{color:var(--muted);font-size:14px}
/* Footer */
.site-footer{border-top:1px solid var(--line);padding:54px 0 24px;background:rgba(7,7,13,.72)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{max-width:320px}
.footer-brand p{color:var(--muted);font-size:13.5px;margin:18px 0 0}
.footer-col h3{font-size:14px;font-weight:800;margin:0 0 14px;color:#fff}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:13.5px;padding:5px 0;transition:.2s}
.footer-col a:hover{color:var(--lime)}
.badge-18{border:1px solid var(--pink);color:#fda4af;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:800}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:36px;padding-top:22px;color:var(--muted);font-size:12.5px}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;background:linear-gradient(135deg,var(--lime),var(--cyan));color:#06101a;
  box-shadow:0 0 22px rgba(6,182,212,.45);transition:.2s;
}
.fab:hover{transform:scale(1.08);box-shadow:0 0 30px rgba(163,230,53,.6)}
.fab .dot{position:absolute;top:0;right:0;width:13px;height:13px;border-radius:50%;background:var(--pink);border:2px solid #fff}
/* Focus */
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
@media (max-width:1024px){
  .page-hero .hero-grid,.pattern-wrap,.cta-band{grid-template-columns:1fr}
  .grid-3,.cms-grid{grid-template-columns:repeat(2,1fr)}
  .steps,.metrics,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .mobile-menu.open{display:block}
  main section{padding:56px 0}
  .grid-2,.grid-3,.grid-4,.steps,.metrics,.cms-grid{grid-template-columns:1fr}
  .session-row{grid-template-columns:1fr}
  .cta-band{padding:26px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .brand-text{font-size:13px;max-width:210px}
  .page-hero{padding:44px 0}
  .hero-cta .btn,.cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-brand .brand{max-width:100%}
}