/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --primary:#2563EB;
  --primary-deep:#1D4ED8;
  --cyan:#38BDF8;
  --lime:#22C55E;
  --volt:#A3E635;
  --rose:#F43F5E;
  --amber:#FBBF24;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#60A5FA;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 22px 48px -26px rgba(2,6,23,.95);
  --shadow-glow:0 0 26px rgba(56,189,248,.28);
  --sp:clamp(56px,7vw,104px);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  letter-spacing:.1px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050C1F 45%,#030712 100%);
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{line-height:1.25;margin:0 0 14px;font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(30px,4vw,50px);font-weight:800}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:clamp(18px,1.6vw,21px)}
p{margin:0 0 14px;color:var(--muted)}
ul,ol{margin:0 0 14px;padding-left:20px;color:var(--muted)}
li{margin-bottom:8px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2}
main{position:relative;z-index:2}
section{padding:var(--sp) 0;position:relative}
.sec-alt{background:linear-gradient(180deg,rgba(8,18,41,.86),rgba(3,7,18,.6));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--cyan);padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.06);margin-bottom:16px;
}
.sec-head{display:flex;flex-wrap:wrap;gap:18px 32px;align-items:flex-end;justify-content:space-between;margin-bottom:34px}
.sec-head .sec-copy{max-width:660px}
.sec-head p{margin:0;font-size:15.5px}
.lead{font-size:17px;color:#CBD5E1}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}

/* ---------- HEADER ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(0,0,0,.95);background:rgba(3,7,18,.96)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;line-height:1.2;color:#fff;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:var(--shadow-glow);
}
.brand small{display:block;font-size:10.5px;font-weight:600;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:#CBD5E1;
  transition:background .25s,color .25s;
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:#fff}
.main-nav a.is-active{color:#fff;background:rgba(37,99,235,.22);border:1px solid var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:0 10px 26px -14px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(56,189,248,1);color:#04121F}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#E2E8F0}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#fff;transform:translateY(-2px)}
.btn-volt{background:linear-gradient(135deg,#22C55E,#A3E635);color:#04120A}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(163,230,53,.9);color:#04120A}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(56,189,248,.08);color:#fff;font-size:17px}
@media (max-width:1024px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-strong);
    padding:12px 20px 20px;display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-toggle{display:inline-grid;place-items:center}
  .brand span.brand-text{font-size:13.5px}
}
@media (max-width:520px){
  .header-inner{gap:10px;min-height:64px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .btn{padding:10px 15px;font-size:13px}
  .header-actions .btn-ghost{padding:9px 12px}
}

/* ---------- HERO ---------- */
.hero{
  padding:calc(var(--sp) + 78px) 0 42px;
  background-image:linear-gradient(100deg,rgba(3,7,18,.96) 8%,rgba(3,7,18,.82) 42%,rgba(3,7,18,.62) 100%),url('/assets/images/d4e43d12312a8a61.jpg');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:38px;align-items:start}
.hero h1{max-width:20ch}
.hero .lead{max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
.hero-note{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--lime)}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{
  font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:999px;
  border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7);
}
.chip i{color:var(--cyan);margin-right:6px}
.hero-panel{
  background:linear-gradient(160deg,rgba(14,30,61,.96),rgba(5,12,31,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.hero-panel h2{font-size:17px;margin-bottom:6px}
.hero-panel .panel-sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.meter{margin-bottom:16px}
.meter-top{display:flex;justify-content:space-between;font-size:13px;font-weight:600;color:#E2E8F0;margin-bottom:6px}
.meter-bar{height:8px;border-radius:999px;background:rgba(148,163,184,.18);overflow:hidden}
.meter-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2563EB,#38BDF8)}
.meter-bar.green span{background:linear-gradient(90deg,#16A34A,#A3E635)}
.meter-bar.amber span{background:linear-gradient(90deg,#F59E0B,#FBBF24)}
.hero-live{
  display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;
  border-top:1px dashed var(--line-strong);font-size:13px;color:var(--muted);
}
.pulse-dot{width:9px;height:9px;border-radius:50%;background:var(--volt);box-shadow:0 0 0 0 rgba(163,230,53,.7);animation:ping 1.8s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(163,230,53,.6)}70%{box-shadow:0 0 0 12px rgba(163,230,53,0)}100%{box-shadow:0 0 0 0 rgba(163,230,53,0)}}
.entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:38px}
.entry-card{
  display:block;padding:18px;border-radius:var(--radius);
  background:rgba(11,23,48,.78);border:1px solid var(--line);
  transition:transform .3s,border-color .3s,background .3s;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(14,30,61,.95);color:#fff}
.entry-card i{font-size:18px;color:var(--cyan);margin-bottom:10px;display:block}
.entry-card strong{display:block;font-size:15px;color:#fff;margin-bottom:5px}
.entry-card span{font-size:13px;color:var(--muted);line-height:1.55}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .hero h1{max-width:none}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:520px){
  .entry-grid{grid-template-columns:1fr}
  .hero{padding-top:calc(var(--sp) + 68px)}
}

/* ---------- STATS ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.stat{background:#060E22;padding:24px 20px}
.stat b{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;color:#fff;letter-spacing:-.5px}
.stat b em{font-style:normal;color:var(--cyan);font-size:16px}
.stat span{display:block;font-size:13.5px;color:var(--muted);margin-top:6px}
@media (max-width:768px){.stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- CARDS / GRIDS ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{
  background:linear-gradient(165deg,rgba(14,30,61,.9),rgba(6,12,30,.92));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:transform .32s,border-color .32s,box-shadow .32s;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.card h3{color:#fff}
.card p:last-child{margin-bottom:0}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:19px;
  background:rgba(56,189,248,.12);color:var(--cyan);border:1px solid var(--line-strong);margin-bottom:16px;
}
.card-img{border-radius:var(--radius-sm);overflow:hidden;margin:-6px -6px 18px;position:relative}
.card-img img{width:100%;height:190px;object-fit:cover;transition:transform .5s}
.card:hover .card-img img{transform:scale(1.05)}
.tag{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;
  color:var(--volt);background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);
  padding:4px 10px;border-radius:999px;margin-bottom:12px;
}
.tag.blue{color:var(--cyan);background:rgba(56,189,248,.12);border-color:var(--line-strong)}
.tag.rose{color:#FDA4AF;background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.split.rev .split-media{order:-1}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:#CBD5E1}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;left:0;top:5px;color:var(--volt);
}
.plain-list{list-style:none;padding:0;margin:0}
.plain-list li{
  padding:14px 0;border-bottom:1px dashed rgba(148,163,184,.22);font-size:14.5px;color:#CBD5E1;
}
.plain-list li:last-child{border-bottom:0}
.plain-list strong{color:#fff;display:block;margin-bottom:3px;font-size:15px}
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:26px}
  .split.rev .split-media{order:0}
}
@media (max-width:520px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .card{padding:20px}
}

/* ---------- TIMELINE ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.tl-item{position:relative;padding:24px 20px 22px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,34,.72)}
.tl-item::before{
  counter-increment:step;content:"0" counter(step);
  font-size:26px;font-weight:800;color:rgba(56,189,248,.35);display:block;margin-bottom:10px;letter-spacing:-1px;
}
.tl-item h3{font-size:17px}
.tl-item p{font-size:14px;margin:0}
@media (max-width:1024px){.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.timeline{grid-template-columns:1fr}}

/* ---------- TABLE ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,34,.7)}
table.data{width:100%;border-collapse:collapse;min-width:620px;margin:0}
table.data th,table.data td{padding:15px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.data th{font-size:12.5px;letter-spacing:1px;text-transform:uppercase;color:var(--cyan);background:rgba(37,99,235,.12);font-weight:600}
table.data td{color:#CBD5E1}
table.data td strong{color:#fff}
table.data tr:last-child td{border-bottom:0}
.table-note{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- PRICING / TIERS ---------- */
.tier{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:rgba(6,14,34,.75);
  display:flex;flex-direction:column;transition:transform .3s,border-color .3s;
}
.tier:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.tier.featured{
  border-color:rgba(163,230,53,.5);
  background:linear-gradient(170deg,rgba(34,197,94,.12),rgba(6,14,34,.9));
  box-shadow:0 24px 50px -30px rgba(163,230,53,.8);
}
.tier .tier-name{font-size:13px;letter-spacing:1.4px;text-transform:uppercase;color:var(--cyan);font-weight:600}
.tier .tier-value{font-size:30px;font-weight:800;color:#fff;margin:10px 0 4px}
.tier .tier-value small{font-size:13px;font-weight:500;color:var(--muted);display:block;margin-top:4px}
.tier ul{list-style:none;padding:0;margin:18px 0 22px;font-size:14px}
.tier ul li{position:relative;padding-left:24px;color:#CBD5E1}
.tier ul li::before{content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;color:var(--cyan);font-size:12px;top:3px}
.tier .btn{margin-top:auto}

/* ---------- TESTIMONIALS ---------- */
.quote-wall{columns:3;column-gap:20px}
.quote{
  break-inside:avoid;margin:0 0 20px;padding:22px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(6,14,34,.72);
}
.quote p{font-size:14.5px;color:#CBD5E1;margin-bottom:14px}
.quote-author{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:14px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;flex:0 0 auto;
}
.quote-author strong{display:block;font-size:14px;color:#fff}
.quote-author span{font-size:12.5px;color:var(--muted)}
.stars{color:var(--amber);font-size:12.5px;margin-bottom:10px}
@media (max-width:1024px){.quote-wall{columns:2}}
@media (max-width:520px){.quote-wall{columns:1}}

/* ---------- LIQUIDITY / H3 BLOCKS ---------- */
.liquidity{display:grid;gap:22px}
.liq-item{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;align-items:start;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,34,.72);
  transition:border-color .3s,transform .3s;
}
.liq-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.liq-item i{font-size:19px;color:var(--cyan);margin-top:6px}
.liq-item h3{font-size:17.5px;margin-bottom:8px}
.liq-item p{margin:0;font-size:14.5px}
.pay-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pay-badge{
  font-size:12.5px;font-weight:600;padding:8px 14px;border-radius:10px;
  border:1px solid var(--line-strong);color:#E2E8F0;background:rgba(11,23,48,.85);
}
.pay-badge i{margin-right:7px;color:var(--cyan)}

/* ---------- NEWS ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:26px;align-items:start}
.news-item{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:18px;align-items:center;
  padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,34,.7);
  margin-bottom:14px;transition:border-color .3s,transform .3s;
}
.news-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.news-item img{width:132px;height:92px;object-fit:cover}
.news-item h3{font-size:16.5px;margin-bottom:6px;color:#fff}
.news-item p{font-size:13.5px;margin-bottom:8px}
.news-meta{display:flex;gap:14px;font-size:12.5px;color:var(--muted)}
.side-box{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:rgba(11,23,48,.75);margin-bottom:18px}
.side-box h3{font-size:16px;margin-bottom:14px}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.22);font-size:14px}
.side-list li:last-child{border-bottom:0}
.side-list a{color:#CBD5E1}
.side-list a:hover{color:var(--cyan)}
.empty-note{padding:22px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);font-size:14.5px}
@media (max-width:1024px){.news-grid{grid-template-columns:1fr}}
@media (max-width:520px){
  .news-item{grid-template-columns:1fr}
  .news-item img{width:100%;height:170px}
}

/* ---------- CATEGORY MATRIX ---------- */
.cat-card{
  display:block;padding:26px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(14,30,61,.92),rgba(6,12,30,.9));
  transition:transform .32s,border-color .32s,box-shadow .32s;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow);color:#fff}
.cat-card i{font-size:22px;color:var(--cyan);margin-bottom:14px;display:block}
.cat-card h3{font-size:18px;color:#fff}
.cat-card p{font-size:14px;margin:0}
.cat-card .more{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13.5px;font-weight:600;color:var(--volt)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,34,.72);overflow:hidden}
.faq-q{
  width:100%;text-align:left;display:flex;justify-content:space-between;gap:16px;align-items:center;
  padding:20px 22px;background:transparent;border:0;color:#fff;font-size:16px;font-weight:600;cursor:pointer;
}
.faq-q i{color:var(--cyan);transition:transform .3s}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 22px 20px;margin:0;font-size:14.5px}

/* ---------- FINAL CTA ---------- */
.final-cta{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:clamp(28px,4vw,48px);
  background-image:linear-gradient(120deg,rgba(3,7,18,.94),rgba(3,7,18,.7)),url('/assets/images/2d942a3ead7385e4.jpg');
  background-size:cover;background-position:center;
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:32px;align-items:center;
}
.final-cta h2{font-size:clamp(23px,2.6vw,32px)}
.final-cta .cta-box{background:rgba(6,12,30,.86);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
@media (max-width:1024px){.final-cta{grid-template-columns:1fr}}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:60;width:58px;height:58px;border-radius:999px;
  display:grid;place-items:center;font-size:20px;color:#E2E8F0;
  background:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)) padding-box,
             linear-gradient(135deg,#38BDF8,#A3E635) border-box;
  border:1.5px solid transparent;
  backdrop-filter:blur(12px);
  box-shadow:0 0 22px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .3s,transform .3s,box-shadow .3s;
}
.fab:hover{opacity:1;transform:scale(1.09);box-shadow:0 0 34px rgba(56,189,248,.75);color:#fff}
.fab:active{transform:scale(.94)}
.fab .fab-dot{position:absolute;top:-3px;right:-3px;width:13px;height:13px;border-radius:50%;background:var(--rose);box-shadow:0 0 0 2px #030712;animation:ping 1.7s infinite}
@media (max-width:520px){.fab{left:12px;bottom:86px;width:54px;height:54px;font-size:18px}}

/* ---------- FOOTER ---------- */
.site-footer{background:#040A17;border-top:1px solid var(--line);padding:64px 0 26px;position:relative;z-index:2}
.footer-top{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,.9fr));gap:32px}
.footer-brand p{font-size:14px;max-width:38ch}
.footer-col h4{font-size:13px;letter-spacing:1.2px;text-transform:uppercase;color:#E2E8F0;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-pay span{font-size:12px;padding:6px 11px;border-radius:8px;border:1px solid var(--line);color:#CBD5E1}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;font-size:13px;color:var(--muted);
}
.badge-18{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;font-size:12px;font-weight:700;
  border:1px solid var(--line-strong);color:var(--cyan);
}
@media (max-width:1024px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.footer-top{grid-template-columns:1fr}}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --primary:#2563EB;
  --primary-deep:#1D4ED8;
  --cyan:#38BDF8;
  --lime:#22C55E;
  --volt:#A3E635;
  --rose:#F43F5E;
  --amber:#FBBF24;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#60A5FA;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 22px 48px -26px rgba(2,6,23,.95);
  --shadow-glow:0 0 26px rgba(56,189,248,.28);
  --sp:clamp(52px,6.4vw,96px);
  --container:1200px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  letter-spacing:.1px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050C1F 45%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--cyan)}
button,input{font-family:inherit}
h1,h2,h3,h4{line-height:1.28;margin:0 0 .55em;font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(26px,3.5vw,42px);font-weight:800}
h2{font-size:clamp(21px,2.3vw,30px)}
h3{font-size:17.5px}
h4{font-size:15px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
p:last-child{margin-bottom:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2}
main{position:relative;z-index:2}
section{padding:var(--sp) 0;position:relative}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--cyan);padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.06);margin-bottom:16px;
}
.lead{font-size:17px;color:#CBD5E1;max-width:68ch}

/* ---------- HEADER ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(0,0,0,.95);background:rgba(3,7,18,.96)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;line-height:1.2;color:#fff;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:var(--shadow-glow);flex:0 0 auto;
}
.brand-text{display:block}
.brand small{display:block;font-size:10.5px;font-weight:600;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:#CBD5E1;
  transition:background .25s,color .25s;white-space:nowrap;
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:#fff}
.main-nav a.is-active{color:#fff;background:rgba(37,99,235,.22);border:1px solid var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(56,189,248,.08);color:#fff;font-size:17px;cursor:pointer}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-primary{background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:0 10px 26px -14px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(56,189,248,1);color:#04121F}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#E2E8F0}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#fff;transform:translateY(-2px)}
.btn-volt{background:linear-gradient(135deg,#22C55E,#A3E635);color:#04120A}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(163,230,53,.9);color:#04120A}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}

/* ---------- ARTICLE HERO ---------- */
.article-hero{
  padding:calc(var(--sp) * .72 + 78px) 0 46px;
  background-image:
    linear-gradient(102deg,rgba(3,7,18,.97) 6%,rgba(3,7,18,.86) 46%,rgba(3,7,18,.55) 100%),
    url('/assets/images/2d942a3ead7385e4.jpg');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  position:relative;
}
.article-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:18px;text-transform:uppercase;letter-spacing:1px}
.crumbs a{color:var(--dim)}
.crumbs span.sep{opacity:.5}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.85fr);gap:42px;align-items:end}
.article-hero h1{max-width:24ch;margin-bottom:14px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:var(--muted);margin-top:18px}
.article-meta i{color:var(--cyan);margin-right:7px}
.article-hero-aside{
  background:linear-gradient(160deg,rgba(14,30,61,.96),rgba(5,12,31,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow);
}
.aside-title{font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.aside-list{display:grid;gap:10px}
.aside-list li{display:flex;gap:10px;align-items:flex-start;font-size:13.8px;color:#CBD5E1;line-height:1.5}
.aside-list i{color:var(--lime);margin-top:4px;font-size:12px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:999px;
  border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7);
}
.chip i{color:var(--cyan);margin-right:6px}

/* ---------- CONTENT WRAP ---------- */
.section-head{max-width:74ch;margin-bottom:34px}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}

.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.post-body{font-size:16.5px;color:#E2E8F0}
.post-body h2{font-size:clamp(20px,2.1vw,27px);margin:36px 0 14px;padding-left:16px;position:relative}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,#2563EB,#38BDF8);
}
.post-body h3{font-size:18px;margin:26px 0 10px;color:#F1F5F9}
.post-body p{margin:0 0 16px;color:#CBD5E1}
.post-body ul,.post-body ol{margin:0 0 18px;padding-left:0;display:grid;gap:9px}
.post-body ul li,.post-body ol li{
  position:relative;padding-left:26px;color:#CBD5E1;font-size:15.8px;
}
.post-body ul li::before{
  content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);
  position:absolute;left:4px;top:1px;font-size:12px;
}
.post-body ol{counter-reset:item}
.post-body ol li{counter-increment:item}
.post-body ol li::before{
  content:counter(item);position:absolute;left:0;top:1px;
  width:19px;height:19px;border-radius:50%;display:grid;place-items:center;
  font-size:11px;font-weight:700;color:#04121F;background:linear-gradient(135deg,#38BDF8,#2563EB);
}
.post-body img{border-radius:var(--radius);margin:22px 0;border:1px solid var(--line)}
.post-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(11,23,48,.7);border-radius:0 var(--radius) var(--radius) 0;color:#E2E8F0;
}
.post-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.post-body th,.post-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.post-body th{color:var(--cyan);font-weight:700;text-transform:uppercase;font-size:12px;letter-spacing:1px}
.post-body a{color:var(--cyan);border-bottom:1px solid var(--line-strong)}

.post-empty{
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  padding:44px 28px;background:rgba(11,23,48,.6);text-align:center;
}
.post-empty h2{margin-bottom:10px}
.post-empty p{color:var(--muted);margin-bottom:22px}

.article-sidebar{position:sticky;top:96px;display:grid;gap:18px}
.side-card{
  background:linear-gradient(165deg,rgba(14,30,61,.9),rgba(5,12,31,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;
}
.side-card h4{font-size:12.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.side-card ul{display:grid;gap:11px}
.side-card li{font-size:14px;color:#CBD5E1}
.side-card li i{color:var(--lime);margin-right:8px;font-size:12px}
.side-note{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.6}

/* ---------- STAT STRIP ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-item{
  background:rgba(11,23,48,.72);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:border-color .25s,transform .25s,box-shadow .25s;
}
.stat-item:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
.stat-value{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;line-height:1.1;margin-bottom:6px}
.stat-value span{font-size:14px;color:var(--cyan);font-weight:700}
.stat-label{font-size:12.5px;color:var(--muted);letter-spacing:.5px}

/* ---------- STRATEGY CARDS ---------- */
.strategy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.strategy-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;background:linear-gradient(150deg,rgba(14,30,61,.82),rgba(5,12,31,.78));
  transition:border-color .3s,transform .3s,box-shadow .3s;overflow:hidden;
}
.strategy-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.strategy-card .tag{
  position:absolute;top:16px;right:16px;font-size:11px;font-weight:700;letter-spacing:1px;
  padding:4px 10px;border-radius:999px;text-transform:uppercase;
  background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong);
}
.strategy-card .tag.is-hot{background:rgba(244,63,94,.16);color:#FDA4AF;border-color:rgba(244,63,94,.45)}
.strategy-range{font-size:26px;font-weight:800;color:#fff;line-height:1;margin-bottom:8px}
.strategy-card h3{font-size:16px;margin-bottom:10px;color:#F1F5F9}
.strategy-card p{font-size:14px;color:var(--muted);margin:0}

/* ---------- TABLE ---------- */
.table-shell{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:rgba(11,23,48,.6);
}
.table-scroll{overflow-x:auto}
table.plan-table{width:100%;border-collapse:collapse;min-width:640px}
table.plan-table thead th{
  background:rgba(14,30,61,.95);font-size:12px;letter-spacing:1.2px;text-transform:uppercase;
  color:var(--cyan);padding:15px 18px;text-align:left;font-weight:700;
}
table.plan-table tbody td{padding:16px 18px;border-top:1px solid var(--line);font-size:14.6px;color:#CBD5E1}
table.plan-table tbody tr:hover td{background:rgba(56,189,248,.05)}
table.plan-table tbody td:first-child{color:#fff;font-weight:700}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;background:rgba(34,197,94,.14);color:#86EFAC;border:1px solid rgba(34,197,94,.35)}
.pill.is-blue{background:rgba(56,189,248,.14);color:#7DD3FC;border-color:rgba(56,189,248,.35)}
.pill.is-amber{background:rgba(251,191,36,.14);color:#FCD34D;border-color:rgba(251,191,36,.35)}

/* ---------- CHECKLIST / MISTAKES ---------- */
.split-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.panel{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  background:linear-gradient(160deg,rgba(14,30,61,.72),rgba(5,12,31,.72));
}
.panel > h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:18px}
.panel > h3 i{color:var(--cyan)}
.check-list{display:grid;gap:13px}
.check-list li{display:flex;gap:12px;font-size:14.6px;color:#CBD5E1;line-height:1.55}
.check-list li i{margin-top:4px;font-size:13px;color:var(--lime);flex:0 0 auto}
.check-list.is-warn li i{color:var(--rose)}
.check-list li strong{color:#fff;font-weight:600}

/* ---------- TIMELINE ---------- */
.timeline{display:grid;gap:0;border-left:1px solid var(--line-strong);margin-left:8px}
.timeline-item{position:relative;padding:0 0 26px 28px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-6px;top:6px;width:11px;height:11px;border-radius:50%;
  background:linear-gradient(135deg,#38BDF8,#2563EB);box-shadow:0 0 0 4px rgba(56,189,248,.12);
}
.timeline-time{font-size:12.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:6px}
.timeline-item h4{font-size:16px;margin-bottom:6px;color:#F1F5F9}
.timeline-item p{font-size:14.2px;color:var(--muted);margin:0}

/* ---------- SECURITY ---------- */
.secure-band{
  background-image:
    linear-gradient(100deg,rgba(3,7,18,.95) 10%,rgba(3,7,18,.8) 60%,rgba(3,7,18,.6) 100%),
    url('/assets/images/eece4b2e9dcc38cd.jpg');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.secure-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
.secure-list{display:grid;gap:16px}
.secure-item{display:flex;gap:14px;align-items:flex-start}
.secure-item .ico{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--cyan);font-size:16px;
}
.secure-item h4{margin-bottom:4px;font-size:15.5px;color:#fff}
.secure-item p{margin:0;font-size:14px;color:var(--muted)}
.secure-quote{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:26px;
  background:rgba(5,12,31,.82);box-shadow:var(--shadow);
}
.secure-quote p{font-size:15.4px;color:#CBD5E1;line-height:1.7}
.secure-quote .who{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:16px;border-top:1px dashed var(--line-strong)}
.secure-quote .who img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.secure-quote .who strong{display:block;font-size:14px;color:#fff}
.secure-quote .who span{font-size:12.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(11,23,48,.6);margin-bottom:12px;overflow:hidden;transition:border-color .25s}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:15.5px;font-weight:600;color:#F1F5F9;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);font-size:15px;
  transition:transform .25s;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.6px;color:var(--muted);line-height:1.7}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(37,99,235,.22),rgba(56,189,248,.1) 55%,rgba(5,12,31,.85));
  padding:clamp(28px,4vw,46px);
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr);gap:32px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#CBD5E1;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-note{font-size:12.8px;color:var(--muted);margin-top:14px;text-align:right}

/* ---------- RELATED ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.related-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:rgba(11,23,48,.62);transition:border-color .3s,transform .3s,box-shadow .3s;display:block;
}
.related-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow);color:inherit}
.related-card img{width:100%;height:160px;object-fit:cover;border-radius:0}
.related-card .rc-body{padding:18px}
.related-card .rc-body h3{font-size:15.5px;margin-bottom:8px;color:#F1F5F9}
.related-card .rc-body p{font-size:13.6px;color:var(--muted);margin:0}
.related-card .rc-tag{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--cyan);font-weight:700;display:block;margin-bottom:8px}

/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--line);background:rgba(2,6,17,.92);
  padding:56px 0 26px;margin-top:0;position:relative;z-index:2;
}
.footer-top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:34px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:42ch;margin:0}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-pay span{
  font-size:11.5px;font-weight:700;letter-spacing:.6px;padding:6px 11px;border-radius:8px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:#CBD5E1;
}
.footer-col h4{font-size:12.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12.8px;color:var(--muted);
}
.badge-18{
  display:inline-grid;place-items:center;width:32px;height:26px;border-radius:8px;
  border:1px solid var(--line-strong);font-size:11px;font-weight:800;color:var(--cyan);
}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:999px;display:grid;place-items:center;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.9),rgba(7,7,13,.9)),
                   linear-gradient(135deg,#38BDF8,#A3E635);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:#7DD3FC;font-size:19px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:transform .3s,opacity .3s,box-shadow .3s,color .3s;
}
.fab-support .dot{
  position:absolute;top:5px;right:5px;width:12px;height:12px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 3px rgba(244,63,94,.25);animation:pulseDot 1.8s infinite;
}
.fab-support:hover{opacity:1;transform:scale(1.1);color:#A3E635;box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab-support:active{transform:scale(.94) translateY(3px)}
@keyframes pulseDot{0%,100%{opacity:1}50%{opacity:.35}}
.fab-support .tip{
  position:absolute;left:70px;top:50%;transform:translateY(-50%);
  white-space:nowrap;font-size:12.5px;font-weight:600;color:#E2E8F0;
  background:rgba(11,23,48,.95);border:1px solid var(--line-strong);border-radius:10px;
  padding:8px 12px;opacity:0;pointer-events:none;transition:opacity .25s;
}
.fab-support:hover .tip{opacity:1}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .nav-toggle{display:grid;place-items:center}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-strong);
    padding:14px 20px 20px;display:none;margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:12px;font-size:15px}
  .header-inner{gap:10px;min-height:64px}
  .brand-text{font-size:13.5px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .article-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .reading-layout{grid-template-columns:1fr;gap:34px}
  .article-sidebar{position:static}
  .secure-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .cta-note{text-align:left}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .strategy-grid,.split-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .btn{padding:11px 16px;font-size:13.5px}
  .header-actions .btn-ghost{padding:9px 11px;font-size:12.5px}
  .header-actions .btn-primary{padding:9px 12px;font-size:12.5px}
  .stat-strip{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .brand small{display:none}
  .fab-support{width:52px;height:52px;bottom:84px;left:12px;font-size:17px}
  .fab-support .tip{display:none}
  .article-meta{gap:8px 14px;font-size:12.6px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --primary:#2563EB;
  --primary-deep:#1D4ED8;
  --cyan:#38BDF8;
  --lime:#22C55E;
  --volt:#A3E635;
  --rose:#F43F5E;
  --amber:#FBBF24;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#60A5FA;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 22px 48px -26px rgba(2,6,23,.95);
  --shadow-glow:0 0 26px rgba(56,189,248,.28);
  --sp:clamp(56px,7vw,104px);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  letter-spacing:.1px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050C1F 45%,#030712 100%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(900px 600px at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(900px 600px at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.24;font-weight:800;letter-spacing:-.4px;color:#fff}
h1{font-size:clamp(27px,4.1vw,45px)}
h2{font-size:clamp(22px,2.7vw,33px)}
h3{font-size:18px}
p{margin:0 0 14px;color:#CBD5E1;line-height:1.7}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2}
main{position:relative;z-index:2}
section{padding:var(--sp) 0;position:relative}
.section-tight{padding:calc(var(--sp) * .62) 0}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--cyan);padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.06);margin-bottom:16px;
}
.lead{font-size:17px;color:#CBD5E1;line-height:1.7}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.left{text-align:left;margin-left:0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:999px;border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);color:#BAE6FD;
}
.badge-lime{border-color:rgba(163,230,53,.4);background:rgba(163,230,53,.1);color:#D9F99D}
.badge-amber{border-color:rgba(251,191,36,.4);background:rgba(251,191,36,.1);color:#FDE68A}
.badge-rose{border-color:rgba(244,63,94,.4);background:rgba(244,63,94,.1);color:#FECDD3}
.badge-18{display:inline-grid;place-items:center;width:34px;height:24px;border-radius:7px;border:1px solid rgba(251,191,36,.5);background:rgba(251,191,36,.12);color:#FDE68A;font-size:11px;font-weight:700}
/* ---------- HEADER ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(0,0,0,.95);background:rgba(3,7,18,.96)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;line-height:1.2;color:#fff;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:var(--shadow-glow);
}
.brand small{display:block;font-size:10.5px;font-weight:600;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.main-nav a{padding:9px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:#CBD5E1;transition:background .25s,color .25s}
.main-nav a:hover{background:rgba(56,189,248,.1);color:#fff}
.main-nav a.is-active{color:#fff;background:rgba(37,99,235,.22);border:1px solid var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:0 10px 26px -14px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(56,189,248,1);color:#04121F}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#E2E8F0}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#fff;transform:translateY(-2px)}
.btn-volt{background:linear-gradient(135deg,#22C55E,#A3E635);color:#04120A}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(163,230,53,.9);color:#04120A}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(56,189,248,.08);color:#fff;font-size:17px}
/* ---------- HERO ---------- */
.hero{
  padding:calc(var(--sp) + 86px) 0 54px;
  background-image:linear-gradient(100deg,rgba(3,7,18,.96) 6%,rgba(3,7,18,.84) 44%,rgba(3,7,18,.6) 100%),url('/assets/images/2d942a3ead7385e4.jpg');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb i{font-size:10px;color:var(--dim)}
.crumb span{color:var(--cyan)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.95fr);gap:40px;align-items:start}
.hero h1{max-width:22ch}
.hero .lead{max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px}
.hero-note{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--lime);margin-right:6px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chip{font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:999px;border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7)}
.chip i{color:var(--cyan);margin-right:6px}
.flight-card{
  background:linear-gradient(165deg,rgba(14,30,61,.96),rgba(5,12,31,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.flight-card::before{
  content:"";position:absolute;inset:-40% -30% auto auto;width:220px;height:220px;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 68%);pointer-events:none;
}
.flight-card h2{font-size:17.5px;margin-bottom:4px}
.flight-card .panel-sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.flight-card img{border-radius:var(--radius);border:1px solid var(--line);margin-bottom:16px}
.moc-list{display:grid;gap:10px}
.moc-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(3,7,18,.55);
}
.moc-row strong{font-size:15.5px;color:#fff;letter-spacing:.4px}
.moc-row small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.3px}
.moc-row span{font-size:12.5px;font-weight:700;color:var(--volt);white-space:nowrap}
.flight-foot{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:15px;border-top:1px dashed var(--line-strong);font-size:12.5px;color:var(--muted)}
.pulse-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 0 rgba(34,197,94,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
/* ---------- STAT STRIP ---------- */
.stat-strip{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(11,23,48,.9),rgba(5,12,31,.7));
  padding:26px 24px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.stat b{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;letter-spacing:-.6px}
.stat b em{font-style:normal;color:var(--cyan)}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
/* ---------- CARDS ---------- */
.card{
  background:linear-gradient(165deg,rgba(14,30,61,.9),rgba(5,12,31,.86));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;height:100%;transition:transform .3s,border-color .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.card h3{margin-bottom:8px;font-size:17px}
.card p{font-size:14.5px;color:#B6C2D6;margin-bottom:0}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:18px;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--cyan);margin-bottom:14px;
}
.card-icon.lime{background:rgba(163,230,53,.12);border-color:rgba(163,230,53,.4);color:var(--volt)}
.card-icon.amber{background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.4);color:var(--amber)}
.card-icon.rose{background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.4);color:#FDA4AF}
.card-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.card-row{margin-bottom:-24px}
.card-row > .columns{margin-bottom:24px}
/* ---------- TABLE ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(5,12,31,.6)}
table.data{width:100%;border-collapse:collapse;min-width:680px}
table.data thead th{
  background:rgba(37,99,235,.18);font-size:12px;letter-spacing:1.1px;text-transform:uppercase;
  color:#BAE6FD;font-weight:700;text-align:left;padding:14px 16px;border-bottom:1px solid var(--line-strong);
}
table.data td{padding:14px 16px;border-bottom:1px solid var(--line);font-size:14.3px;color:#CBD5E1;vertical-align:top}
table.data tbody tr:last-child td{border-bottom:0}
table.data tbody tr:hover td{background:rgba(56,189,248,.05)}
table.data td strong{color:#fff}
.table-note{font-size:12.5px;color:var(--muted);margin-top:12px;display:flex;gap:8px;align-items:flex-start}
.table-note i{color:var(--dim);margin-top:4px}
/* ---------- SCENARIO ---------- */
.scenario{position:relative;padding-top:30px}
.scenario .price{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.5px}
.scenario .price small{display:block;font-size:12.5px;font-weight:500;color:var(--muted);letter-spacing:.3px;margin-top:4px}
.scenario ul{display:grid;gap:9px;margin-top:16px}
.scenario ul li{display:flex;gap:10px;font-size:14.3px;color:#C6D2E4}
.scenario ul li i{color:var(--lime);margin-top:5px;font-size:12px}
.ribbon{
  position:absolute;top:0;right:0;font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;
  padding:6px 13px;border-radius:0 var(--radius) 0 14px;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;
}
/* ---------- STEPS ---------- */
.steps{display:grid;gap:0;position:relative;margin-left:6px}
.step{display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;padding-bottom:28px;position:relative}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:27px;top:52px;bottom:0;width:1px;background:linear-gradient(180deg,var(--line-strong),transparent)}
.step:last-child::before{display:none}
.step-num{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font-weight:800;font-size:16px;
  background:rgba(37,99,235,.2);border:1px solid var(--line-strong);color:#BAE6FD;
}
.step-body h3{font-size:16.5px;margin-bottom:6px}
.step-body p{font-size:14.4px;margin-bottom:0;color:#B6C2D6}
/* ---------- DO / DONT ---------- */
.rule-box{border:1px solid var(--line);border-radius:var(--radius);padding:24px;height:100%}
.rule-box.do{background:linear-gradient(160deg,rgba(34,197,94,.1),rgba(5,12,31,.7));border-color:rgba(34,197,94,.32)}
.rule-box.dont{background:linear-gradient(160deg,rgba(244,63,94,.1),rgba(5,12,31,.7));border-color:rgba(244,63,94,.32)}
.rule-box h3{display:flex;align-items:center;gap:10px;font-size:17px}
.rule-box.do h3 i{color:var(--lime)}
.rule-box.dont h3 i{color:var(--rose)}
.rule-box ul{display:grid;gap:12px;margin-top:6px}
.rule-box li{display:flex;gap:11px;font-size:14.4px;color:#C6D2E4;line-height:1.6}
.rule-box li i{margin-top:5px;font-size:12px}
.rule-box.do li i{color:var(--lime)}
.rule-box.dont li i{color:var(--rose)}
/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(11,23,48,.6);overflow:hidden;transition:border-color .3s,background .3s}
.faq-item[open]{border-color:var(--line-strong);background:rgba(14,30,61,.72)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;display:flex;align-items:center;gap:14px;
  font-size:15.5px;font-weight:600;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i.fa-plus{color:var(--cyan);font-size:13px;transition:transform .3s}
.faq-item[open] summary i.fa-plus{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 20px 20px 54px;font-size:14.6px;color:#B6C2D6;line-height:1.7}
/* ---------- QUOTES ---------- */
.quote{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:linear-gradient(165deg,rgba(11,23,48,.85),rgba(5,12,31,.75));height:100%}
.quote i.fa-quote-left{color:var(--cyan);opacity:.55;font-size:18px;margin-bottom:12px;display:block}
.quote p{font-size:14.6px;color:#C6D2E4}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F}
.quote-who b{display:block;font-size:14px;color:#fff}
.quote-who span{font-size:12.5px;color:var(--muted)}
/* ---------- CHANNEL MATRIX ---------- */
.channel{
  display:flex;flex-direction:column;gap:12px;height:100%;padding:24px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,30,61,.9),rgba(5,12,31,.82));
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.channel:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow);color:inherit}
.channel i.c-ico{font-size:20px;color:var(--cyan)}
.channel h3{font-size:17px;margin-bottom:0}
.channel p{font-size:14.2px;color:#B6C2D6;margin-bottom:0}
.channel .c-link{font-size:13.5px;font-weight:700;color:var(--volt);display:inline-flex;align-items:center;gap:8px;margin-top:auto}
/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);overflow:hidden;position:relative;
  background-image:linear-gradient(100deg,rgba(3,7,18,.95) 10%,rgba(3,7,18,.78) 55%,rgba(3,7,18,.55) 100%),url('/assets/images/eece4b2e9dcc38cd.jpg');
  background-size:cover;background-position:center;
  padding:clamp(30px,4vw,52px);
}
.cta-band h2{max-width:26ch}
.cta-band p{max-width:64ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
/* ---------- FOOTER ---------- */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(5,12,31,.6),rgba(3,7,18,1));padding:64px 0 28px;position:relative;z-index:2}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{font-size:14.2px;color:var(--muted);max-width:44ch}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-pay span{font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7)}
.footer-col h4{font-size:13px;letter-spacing:1.2px;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.2px;color:var(--muted);transition:color .25s,padding-left .25s}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--muted);
}
/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;min-height:56px;padding:12px 18px;
  border-radius:999px;border:1px solid transparent;
  background:
    linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)) padding-box,
    linear-gradient(135deg,#A3E635,#06B6D4) border-box;
  backdrop-filter:blur(12px);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E6F6FF;font-size:13.5px;font-weight:700;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab i{font-size:17px;color:#A3E635;animation:flicker 4s linear infinite}
.fab:hover{opacity:1;transform:scale(1.04);box-shadow:0 0 28px rgba(6,182,212,.7);color:#fff}
.fab:active{transform:scale(.96)}
.fab-dot{position:absolute;top:8px;right:10px;width:10px;height:10px;border-radius:50%;background:#F43F5E;box-shadow:0 0 10px rgba(244,63,94,.9)}
@keyframes fabPulse{0%,100%{opacity:.78;box-shadow:0 0 18px rgba(6,182,212,.38)}50%{opacity:1;box-shadow:0 0 28px rgba(6,182,212,.62)}}
@keyframes flicker{0%,92%,100%{opacity:1}94%{opacity:.35}96%{opacity:1}98%{opacity:.5}}
/* ---------- RESPONSIVE ---------- */
@media screen and (max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:768px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-strong);
    padding:12px 20px 20px;display:none;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:12px}
  .nav-toggle{display:inline-grid;place-items:center}
  .brand-text{font-size:13.5px}
  .header-inner{gap:10px;min-height:64px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .header-actions .btn{padding:9px 12px;font-size:12.5px}
  .hero{padding:calc(var(--sp) + 76px) 0 40px}
  .step{grid-template-columns:46px minmax(0,1fr);gap:15px}
  .step-num{width:46px;height:46px;border-radius:13px;font-size:14px}
  .step::before{left:23px;top:46px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{justify-content:flex-start}
  .faq-item .faq-body{padding-left:20px}
}
@media screen and (max-width:520px){
  .container{padding:0 15px}
  .stat-grid{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:none}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .fab{padding:11px 15px;font-size:12.5px}
  table.data thead th,table.data td{padding:12px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --primary:#2563EB;
  --primary-deep:#1D4ED8;
  --cyan:#38BDF8;
  --lime:#22C55E;
  --volt:#A3E635;
  --rose:#F43F5E;
  --amber:#FBBF24;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#60A5FA;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 22px 48px -26px rgba(2,6,23,.95);
  --shadow-glow:0 0 26px rgba(56,189,248,.28);
  --sp:clamp(56px,7vw,104px);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:'Be Vietnam Pro',"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.65;letter-spacing:.1px;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050C1F 45%,#030712 100%);
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0 0 12px;font-weight:800;line-height:1.22;letter-spacing:-.3px}
h1{font-size:clamp(28px,4.2vw,50px)}
h2{font-size:clamp(23px,3vw,34px)}
h3{font-size:clamp(18px,2vw,21px)}
h4{font-size:16px;font-weight:700}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2}
main{position:relative;z-index:2}
section{padding:var(--sp) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:1.6px;text-transform:uppercase;color:var(--cyan);
  padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.06);margin-bottom:16px;
}
.eyebrow i{font-size:11px}
.lead{font-size:17px;color:#CBD5E1;max-width:70ch}
.muted{color:var(--muted)}
.small{font-size:13.5px}
.section-head{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:end;margin-bottom:38px}
.section-head .lead{font-size:16px}
.section-head--stack{grid-template-columns:1fr;align-items:start;max-width:760px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}

/* ---------- HEADER ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(3,7,18,.86);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(0,0,0,.95);background:rgba(3,7,18,.96)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;line-height:1.2;color:#fff;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:var(--shadow-glow);
}
.brand-text{display:block}
.brand small{display:block;font-size:10.5px;font-weight:600;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.main-nav a{padding:9px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:#CBD5E1;transition:background .25s,color .25s}
.main-nav a:hover{background:rgba(56,189,248,.1);color:#fff}
.main-nav a.is-active{color:#fff;background:rgba(37,99,235,.22);border:1px solid var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(56,189,248,.08);color:#fff;font-size:17px}
.nav-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:0 10px 26px -14px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(56,189,248,1);color:#04121F}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#E2E8F0}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#fff;transform:translateY(-2px)}
.btn-volt{background:linear-gradient(135deg,#22C55E,#A3E635);color:#04120A}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(163,230,53,.9);color:#04120A}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;padding:5px 11px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(37,99,235,.16);color:#DBEAFE}
.badge-lime{border-color:rgba(163,230,53,.42);background:rgba(163,230,53,.12);color:#D9F99D}
.badge-amber{border-color:rgba(251,191,36,.42);background:rgba(251,191,36,.12);color:#FDE68A}
.chip{font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:999px;border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7)}
.chip i{color:var(--cyan);margin-right:6px}

/* ---------- HERO (category) ---------- */
.page-hero{
  padding:calc(var(--sp) + 78px) 0 54px;
  background-image:linear-gradient(102deg,rgba(3,7,18,.97) 6%,rgba(3,7,18,.86) 44%,rgba(3,7,18,.66) 100%),url('/assets/images/2d942a3ead7385e4.jpg');
  background-size:cover;background-position:center;border-bottom:1px solid var(--line);
}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.78fr);gap:40px;align-items:start}
.page-hero h1{max-width:22ch;margin-bottom:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 18px}
.hero-note{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--lime);margin-right:6px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-panel{
  background:linear-gradient(160deg,rgba(14,30,61,.96),rgba(5,12,31,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.hero-panel h2{font-size:17px;margin-bottom:6px}
.panel-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.mini-stats{display:grid;gap:14px}
.mini-stat{display:flex;align-items:center;gap:14px;padding-bottom:14px;border-bottom:1px dashed var(--line-strong)}
.mini-stat:last-child{border-bottom:0;padding-bottom:0}
.mini-stat .num{font-size:26px;font-weight:800;color:var(--cyan);min-width:96px;line-height:1.1}
.mini-stat .lbl{font-size:13px;color:#CBD5E1}
.hero-live{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-strong);font-size:13px;color:var(--muted)}
.hero-live .dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 12px rgba(34,197,94,.9);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}

/* ---------- STAT STRIP ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:34px}
.stat-card{
  background:linear-gradient(160deg,rgba(11,23,48,.92),rgba(6,14,34,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.stat-card .value{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.1;margin-bottom:6px}
.stat-card .label{font-size:13.5px;color:var(--muted)}

/* ---------- GRIDS & CARDS ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{
  background:linear-gradient(165deg,rgba(11,23,48,.94),rgba(6,14,34,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 24px rgba(56,189,248,.16)}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:19px;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);
}
.card h3{margin-bottom:8px;font-size:18px}
.card p{font-size:14.5px;color:#CBD5E1}
.meta-list{margin-top:16px;border-top:1px dashed var(--line-strong);padding-top:14px;display:grid;gap:9px}
.meta-list li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--muted)}
.meta-list li b{color:#E2E8F0;font-weight:600}

/* ---------- SPLIT / FEATURE ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:center}
.split-img{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-img img{width:100%;height:100%;object-fit:cover;border-radius:0}
.figure-cap{font-size:12.5px;color:var(--muted);margin-top:12px}
.check-list{display:grid;gap:12px;margin-top:20px}
.check-list li{display:flex;gap:12px;font-size:14.5px;color:#CBD5E1;align-items:flex-start}
.check-list i{color:var(--lime);margin-top:4px;font-size:14px}
.warn-list i{color:var(--amber)}

/* ---------- STEPS ---------- */
.steps{display:grid;gap:16px;counter-reset:step}
.step{
  display:grid;grid-template-columns:58px minmax(0,1fr);gap:18px;align-items:start;
  border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;
  background:linear-gradient(120deg,rgba(11,23,48,.9),rgba(6,14,34,.72));
  transition:border-color .3s,transform .3s;
}
.step:hover{border-color:var(--line-strong);transform:translateX(4px)}
.step-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04121F;background:linear-gradient(135deg,#2563EB,#38BDF8);
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14.5px;color:#CBD5E1;margin:0}
.step .tag{display:inline-block;margin-top:10px;font-size:12px;font-weight:600;color:#DBEAFE;background:rgba(37,99,235,.18);border:1px solid var(--line-strong);padding:4px 10px;border-radius:999px}

/* ---------- TABLE ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:rgba(6,14,34,.72);box-shadow:var(--shadow);
}
table.limit-table{width:100%;border-collapse:collapse;margin:0;background:transparent}
table.limit-table thead th{
  background:rgba(37,99,235,.18);color:#DBEAFE;font-size:12.5px;font-weight:700;
  letter-spacing:1px;text-transform:uppercase;text-align:left;padding:15px 18px;
  border-bottom:1px solid var(--line-strong);
}
table.limit-table tbody td{
  padding:16px 18px;font-size:14.5px;color:#CBD5E1;border-bottom:1px solid var(--line);
}
table.limit-table tbody tr:last-child td{border-bottom:0}
table.limit-table tbody tr:hover td{background:rgba(56,189,248,.05);color:#F1F5F9}
table.limit-table td strong{color:#fff;font-weight:700}
.td-note{font-size:12.5px;color:var(--muted);display:block;margin-top:4px}

/* ---------- TESTIMONIALS ---------- */
.quote{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  background:linear-gradient(160deg,rgba(11,23,48,.92),rgba(6,14,34,.86));
  display:flex;flex-direction:column;gap:14px;
}
.quote p{font-size:14.5px;color:#DBEAFE;font-style:italic}
.quote .who{display:flex;align-items:center;gap:12px;border-top:1px dashed var(--line-strong);padding-top:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:700;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;font-size:15px;
}
.who .name{font-size:14px;font-weight:700;color:#fff}
.who .role{font-size:12.5px;color:var(--muted)}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:rgba(9,18,40,.78);transition:border-color .3s,background .3s;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(11,23,48,.92)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;gap:16px;align-items:flex-start;
  font-size:15.5px;font-weight:600;color:#F1F5F9;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  color:var(--cyan);margin-left:auto;transition:transform .3s;flex:0 0 auto;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item .answer{padding:0 22px 20px;font-size:14.5px;color:#CBD5E1}

/* ---------- CTA BAND ---------- */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(37,99,235,.26),rgba(6,14,34,.92) 62%),
             url('/assets/images/92e9a2f486714d21.jpg') right center/cover no-repeat;
  padding:clamp(28px,4vw,48px);display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:28px;align-items:center;box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:10px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  min-height:52px;padding:12px 18px;border-radius:999px;
  border:1.5px solid transparent;
  background:
    linear-gradient(#07070D,#07070D) padding-box,
    linear-gradient(135deg,#22D3EE,#2563EB) border-box;
  color:#E2E8F0;font-size:13.5px;font-weight:600;
  box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.78;
  transition:opacity .3s,transform .3s,box-shadow .3s,color .3s;
}
.fab:hover{opacity:1;transform:scale(1.05);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.75)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;opacity:1}
.fab .fab-icon{color:var(--cyan);animation:neon 2.6s infinite}
.fab:hover .fab-icon{animation:flicker .6s infinite}
.fab .fab-dot{position:absolute;top:8px;right:10px;width:9px;height:9px;border-radius:50%;background:var(--rose);box-shadow:0 0 10px rgba(244,63,94,.9);animation:pulse 1.4s infinite}
@keyframes neon{0%,100%{opacity:1}50%{opacity:.55}}
@keyframes flicker{0%,100%{opacity:1}40%{opacity:.3}60%{opacity:.85}}

/* ---------- FOOTER ---------- */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(2,6,23,.98));border-top:1px solid var(--line);padding:56px 0 26px;position:relative;z-index:2}
.footer-top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:34px;padding-bottom:32px;border-bottom:1px solid var(--line)}
.footer-brand p{font-size:14px;color:var(--muted);max-width:44ch;margin-top:10px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-pay span{font-size:12px;font-weight:600;color:#CBD5E1;border:1px solid var(--line);border-radius:999px;padding:5px 11px;background:rgba(11,23,48,.7)}
.footer-col h4{font-size:14px;text-transform:uppercase;letter-spacing:1.2px;color:#E2E8F0;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;padding-top:22px;font-size:13px;color:var(--muted)}
.badge-18{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1px solid var(--line-strong);font-size:11px;font-weight:700;color:#E2E8F0}

/* ---------- RESPONSIVE ---------- */
@media screen and (max-width:1024px){
  .page-hero-grid{grid-template-columns:1fr;gap:30px}
  .section-head{grid-template-columns:1fr;gap:14px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:26px}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media screen and (max-width:900px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-strong);
    padding:12px 20px 20px;display:none;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:12px}
  .nav-toggle{display:inline-grid;place-items:center}
  .header-inner{gap:10px;min-height:64px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .brand-text{font-size:13.5px}
  .btn{padding:10px 15px;font-size:13px}
  .header-actions .btn-ghost{padding:9px 12px}
}
@media screen and (max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .step{grid-template-columns:48px minmax(0,1fr);padding:18px}
  .step-num{width:42px;height:42px;font-size:15px}
  .table-wrap{overflow-x:auto}
  table.limit-table{min-width:640px}
  .fab{padding:11px 14px;font-size:12.5px;bottom:88px}
}
@media screen and (max-width:520px){
  .container{padding:0 15px}
  .hero-actions .btn{width:100%}
  .mini-stat .num{font-size:22px;min-width:82px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab .fab-text{display:none}
  .fab{padding:13px;width:52px;height:52px;justify-content:center}
  .stat-strip{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --primary:#2563EB;
  --primary-deep:#1D4ED8;
  --cyan:#38BDF8;
  --lime:#22C55E;
  --volt:#A3E635;
  --rose:#F43F5E;
  --amber:#FBBF24;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#60A5FA;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 22px 48px -26px rgba(2,6,23,.95);
  --shadow-glow:0 0 26px rgba(56,189,248,.28);
  --sp:clamp(56px,7vw,104px);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  letter-spacing:.1px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050C1F 45%,#030712 100%);
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.25;font-weight:700}
h1{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:-.6px}
h2{font-size:clamp(22px,2.7vw,32px)}
h3{font-size:17.5px}
p{margin:0 0 14px}
ul,ol{margin:0 0 14px;padding-left:20px}
li{margin-bottom:8px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2}
main{position:relative;z-index:2}
section{padding:var(--sp) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.15));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:74ch;margin-bottom:34px}
.section-head h2{max-width:26ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--cyan);padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.06);margin-bottom:16px;
}
.lead{font-size:17px;color:#CBD5E1;max-width:62ch}
.muted{color:var(--muted)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}
/* HEADER */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -22px rgba(0,0,0,.95);background:rgba(3,7,18,.96)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;line-height:1.2;color:#fff;flex:0 0 auto}
.brand:hover{color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:var(--shadow-glow);
}
.brand-text small{display:block;font-size:10.5px;font-weight:600;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:#CBD5E1;
  transition:background .25s ease,color .25s ease;
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:#fff}
.main-nav a.is-active{color:#fff;background:rgba(37,99,235,.22);border:1px solid var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(56,189,248,.08);color:#fff;font-size:17px;cursor:pointer}
/* BUTTONS */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121F;box-shadow:0 10px 26px -14px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(56,189,248,1);color:#04121F}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#E2E8F0}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#fff;transform:translateY(-2px)}
.btn-volt{background:linear-gradient(135deg,#22C55E,#A3E635);color:#04120A}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(163,230,53,.9);color:#04120A}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}
/* HERO */
.hero{
  padding:calc(var(--sp) + 78px) 0 46px;
  background-image:linear-gradient(102deg,rgba(3,7,18,.97) 8%,rgba(3,7,18,.86) 44%,rgba(3,7,18,.66) 100%),url('/assets/images/ad8e64c141fe5dd1.jpg');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.92fr);gap:40px;align-items:start}
.hero h1{max-width:22ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 18px}
.hero-note{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--lime);margin-right:6px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chip{
  font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:999px;
  border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7);
}
.chip i{color:var(--cyan);margin-right:6px}
.hero-panel{
  background:linear-gradient(160deg,rgba(14,30,61,.96),rgba(5,12,31,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow);
}
.hero-panel h2{font-size:17px;margin-bottom:4px}
.panel-sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.ring{
  width:136px;height:136px;border-radius:50%;margin:4px auto 14px;position:relative;
  display:grid;place-items:center;
  background:conic-gradient(var(--cyan) 0% 72%,rgba(56,189,248,.14) 72% 100%);
  box-shadow:0 0 22px rgba(56,189,248,.28);
}
.ring::after{content:"";position:absolute;inset:13px;border-radius:50%;background:#071228;box-shadow:inset 0 0 26px rgba(56,189,248,.22)}
.ring-value{position:relative;z-index:2;text-align:center;line-height:1.2}
.ring-value strong{display:block;font-size:26px;font-weight:800;color:#fff}
.ring-value span{font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted)}
.tier-list{display:grid;gap:10px;margin:18px 0 18px}
.tier{
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 15px;
  background:rgba(11,23,48,.66);transition:border-color .25s ease,transform .25s ease;
}
.tier:hover{border-color:var(--line-strong);transform:translateX(3px)}
.tier-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:4px}
.tier-head span{font-size:13px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--cyan)}
.tier-head strong{font-size:15px;color:#fff}
.tier p{margin:0;font-size:13px;color:var(--muted)}
/* STATS */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat-item{padding:22px 20px;border-left:2px solid var(--line-strong);background:linear-gradient(120deg,rgba(11,23,48,.7),rgba(11,23,48,.15))}
.stat-num{font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;letter-spacing:-.5px;display:block}
.stat-num i{color:var(--cyan);font-size:20px;margin-right:4px}
.stat-label{font-size:13.5px;color:var(--muted);display:block;margin-top:6px}
/* CARDS & GRIDS */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.card{
  background:linear-gradient(160deg,rgba(11,23,48,.92),rgba(5,12,31,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.card h3{display:flex;align-items:center;gap:10px}
.card h3 i{color:var(--cyan)}
.card p:last-child{margin-bottom:0}
.card-img{border-radius:var(--radius-sm);overflow:hidden;margin-bottom:16px;border:1px solid var(--line)}
.card-img img{width:100%;height:190px;object-fit:cover;border-radius:0;transition:transform .5s ease}
.card:hover .card-img img{transform:scale(1.04)}
.tag{
  display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;
  letter-spacing:1.1px;text-transform:uppercase;color:var(--volt);
  border:1px solid rgba(163,230,53,.35);background:rgba(163,230,53,.08);
  padding:5px 11px;border-radius:999px;margin-bottom:12px;
}
.step-list{list-style:none;padding:0;margin:0;counter-reset:step}
.step-list li{
  counter-increment:step;position:relative;padding:0 0 20px 52px;margin:0;
  border-left:1px solid var(--line);margin-left:17px;
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0}
.step-list li::before{
  content:counter(step);position:absolute;left:-17px;top:-2px;
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  font-size:13.5px;font-weight:800;color:#04121F;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
}
.step-list strong{display:block;color:#fff;font-size:15.5px;margin-bottom:3px}
.step-list span{font-size:14px;color:var(--muted)}
.img-frame{border:1px solid var(--line-strong);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.img-frame img{width:100%;border-radius:0}
/* TABLE */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(8,18,41,.6)}
table.compare{width:100%;border-collapse:collapse;min-width:620px}
table.compare th,table.compare td{padding:15px 16px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.compare thead th{font-size:12px;letter-spacing:1.3px;text-transform:uppercase;color:var(--cyan);background:rgba(37,99,235,.12)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:rgba(56,189,248,.05)}
table.compare td:first-child{color:#E2E8F0;font-weight:600}
.ok{color:var(--lime);font-weight:600}
.no{color:var(--rose);font-weight:600}
/* LOG */
.log-list{display:grid;gap:10px}
.log-row{
  display:grid;grid-template-columns:1fr 1fr 1.4fr 1fr .9fr;gap:14px;align-items:center;
  padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(11,23,48,.6);font-size:14px;transition:border-color .25s ease,background .25s ease;
}
.log-row:hover{border-color:var(--line-strong);background:rgba(14,30,61,.75)}
.log-row span:first-child{color:#fff;font-weight:600}
.log-row code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--dim);font-size:13px}
.log-head{font-size:11.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--cyan);border:0;background:transparent;padding-bottom:2px}
.log-head:hover{background:transparent;border-color:transparent}
/* CHANNELS */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.channel-card{
  display:block;padding:26px 24px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(11,23,48,.92),rgba(5,12,31,.86));
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow);color:inherit}
.channel-card i.ch-icon{font-size:22px;color:var(--cyan);margin-bottom:14px;display:block}
.channel-card h3{font-size:17px}
.channel-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.channel-link{font-size:13.5px;font-weight:600;color:var(--cyan)}
/* POSTS */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(11,23,48,.62);transition:border-color .3s ease,transform .3s ease;
}
.post-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.post-cat{font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--volt);font-weight:700}
.post-card h3{font-size:16.5px;margin:0}
.post-card p{font-size:14px;color:var(--muted);margin:0;flex:1}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px}
.post-more{color:var(--cyan);font-weight:600}
.list-foot{margin-top:26px}
.empty-note{color:var(--muted);font-size:14.5px}
/* FAQ + CTA */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:rgba(11,23,48,.55);transition:border-color .3s ease}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{display:flex;gap:11px;align-items:flex-start;font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.faq-q i{color:var(--cyan);margin-top:4px}
.faq-a{font-size:14.5px;color:var(--muted);margin:0}
.cta-band{
  margin-top:56px;border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:38px clamp(22px,4vw,44px);
  background-image:linear-gradient(100deg,rgba(3,7,18,.94) 10%,rgba(8,18,41,.82) 100%),url('/assets/images/92e9a2f486714d21.jpg');
  background-size:cover;background-position:center;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);gap:28px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:10px}
.cta-band p{color:#CBD5E1;margin:0}
.cta-actions{display:flex;flex-direction:column;gap:12px}
/* FOOTER */
.site-footer{
  position:relative;z-index:2;margin-top:0;padding:60px 0 26px;
  background:linear-gradient(180deg,#030712,#050C1F);
  border-top:1px solid var(--line);
}
.footer-top{display:grid;grid-template-columns:1.7fr .8fr .8fr .8fr;gap:34px;padding-bottom:32px;border-bottom:1px solid var(--line)}
.footer-brand p{font-size:14px;color:var(--muted);max-width:40ch}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.footer-pay span{font-size:12px;font-weight:600;padding:6px 11px;border-radius:999px;border:1px solid var(--line);color:#CBD5E1;background:rgba(11,23,48,.7)}
.footer-col h4{font-size:12.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;font-size:13px;color:var(--muted)}
.badge-18{display:inline-grid;place-items:center;width:32px;height:22px;border-radius:6px;background:var(--rose);color:#fff;font-size:11px;font-weight:700}
/* FAB */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;min-height:52px;
  color:#fff;font-size:13.5px;font-weight:600;letter-spacing:.2px;
  background-image:linear-gradient(rgba(7,12,25,.86),rgba(7,12,25,.86)),linear-gradient(135deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.85;backdrop-filter:blur(10px);
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab-support:hover{opacity:1;transform:scale(1.06);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab-support:active{transform:scale(.95)}
.fab-support i.fab-icon{font-size:16px;color:var(--volt)}
.fab-dot{position:absolute;top:-3px;right:-3px;width:11px;height:11px;border-radius:50%;background:var(--rose);box-shadow:0 0 0 2px #030712;animation:dotPulse 1.6s ease-in-out infinite}
@keyframes fabPulse{0%,100%{box-shadow:0 0 16px rgba(6,182,212,.35)}50%{box-shadow:0 0 26px rgba(6,182,212,.6)}}
@keyframes dotPulse{0%,100%{opacity:1}50%{opacity:.35}}
/* FOUNDATION OVERRIDES */
.grid-x{margin-left:0;margin-right:0}
.grid-x>.cell{padding-left:0;padding-right:0}
/* RESPONSIVE */
@media screen and (max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .hero h1{max-width:30ch}
  .split{grid-template-columns:minmax(0,1fr);gap:28px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.post-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
  .log-row{grid-template-columns:1fr 1fr 1.3fr 1fr .8fr;font-size:13px}
}
@media screen and (max-width:900px){
  .header-inner{gap:10px;min-height:64px}
  .brand{font-size:13.5px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .brand-text small{font-size:9.5px;letter-spacing:1px}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line-strong);
    padding:12px 20px 20px;display:none;margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:12px}
  .nav-toggle{display:inline-grid;place-items:center;order:3}
  .header-actions{margin-left:auto;gap:8px;order:2}
  .header-actions .btn{padding:9px 13px;font-size:12.5px}
  .header-actions .btn-ghost{padding:9px 12px}
  .container{padding:0 16px}
}
@media screen and (max-width:768px){
  section{padding:60px 0}
  .hero{padding-top:118px}
  .grid-2,.grid-3,.post-grid,.channel-grid,.faq-grid{grid-template-columns:minmax(0,1fr)}
  .log-row{grid-template-columns:1fr 1fr;gap:8px 12px}
  .log-row code{font-size:12.5px}
  .log-head{display:none}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:26px}
  .fab-support{bottom:88px;left:12px;padding:11px 15px;font-size:12.5px}
}
@media screen and (max-width:520px){
  .stat-grid{grid-template-columns:minmax(0,1fr)}
  .hero-actions .btn{width:100%}
  .brand-text{max-width:150px}
  .brand-text small{display:none}
  .header-actions .btn-ghost{display:inline-flex}
  .ring{width:118px;height:118px}
  .ring-value strong{font-size:22px}
  .cta-actions .btn{width:100%}
  .fab-support span.fab-text{display:none}
  .fab-support{padding:14px}
}