/* roulang page: index */
:root{
  --bg-0:#070a12;
  --bg-1:#0d1220;
  --bg-2:#121a2b;
  --bg-3:#182338;
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(140,180,255,.32);
  --txt-0:#f5f8ff;
  --txt-1:#c3cee4;
  --txt-2:#8b98b4;
  --brand-1:#4f7cff;
  --brand-2:#22d3ee;
  --brand-3:#a855f7;
  --gold-1:#fbbf24;
  --gold-2:#f59e0b;
  --ok:#34d399;
  --danger:#fb7185;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 4px 14px rgba(3,7,20,.5);
  --shadow-m:0 14px 40px rgba(3,7,20,.6);
  --shadow-glow:0 12px 46px rgba(79,124,255,.35);
  --gap:24px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--txt-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(79,124,255,.20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(168,85,247,.16), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(34,211,238,.10), transparent 65%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul{list-style:none}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
section{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);
  background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.26);
  padding:6px 14px;border-radius:999px;
}
.sec-head{display:flex;flex-direction:column;gap:12px;max-width:780px}
.sec-head h2{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:800;line-height:1.22;letter-spacing:-.02em;
}
.sec-head p{color:var(--txt-1);font-size:15.5px;max-width:700px}
.asym{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:14.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand-1),var(--brand-3));
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(120,90,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--txt-0);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,var(--gold-1),var(--gold-2));
  color:#211400;box-shadow:0 12px 40px rgba(245,158,11,.34);
}
.btn-gold:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px}
.tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 11px;border-radius:999px;text-transform:uppercase;
  background:rgba(79,124,255,.14);color:#9db6ff;border:1px solid rgba(79,124,255,.3);
}
.tag.gold{background:rgba(251,191,36,.13);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.tag.green{background:rgba(52,211,153,.13);color:#6ee7b7;border-color:rgba(52,211,153,.3)}
.card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16.5px;letter-spacing:-.02em}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-3));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:900;
  box-shadow:0 8px 24px rgba(79,124,255,.45);
}
.logo-text span{display:block}
.logo-text .l1{font-size:9.5px;color:var(--brand-2);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.logo-text .l2{font-size:15px;line-height:1.15}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--txt-1);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.35)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-login{font-size:14px;font-weight:700;color:var(--gold-1);padding:9px 4px}
.nav-login:hover{color:#fde68a}
.burger{display:none;background:none;border:1px solid var(--line-strong);border-radius:10px;width:42px;height:42px;color:#fff;font-size:18px;cursor:pointer}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;border-top:1px solid var(--line);background:rgba(7,10,18,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 12px;border-radius:10px;font-weight:600;color:var(--txt-1)}
.mobile-menu a.active{color:#fff;background:rgba(79,124,255,.18)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:8px}

/* HERO */
.hero{
  position:relative;padding:52px 0 60px;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.72),rgba(7,10,18,.94)),
             url('/assets/images/c2f8f85e5e54d5f4.jpg') center/cover no-repeat;
  z-index:-1;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.hero h1{
  font-size:clamp(27px,4.3vw,50px);
  font-weight:900;line-height:1.15;letter-spacing:-.025em;margin:16px 0 16px;
}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--brand-2),var(--brand-1) 45%,var(--brand-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16px;color:var(--txt-1);max-width:640px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 22px}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}
.hero-stats .st b{display:block;font-size:23px;font-weight:900;background:linear-gradient(100deg,var(--brand-2),var(--brand-1));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats .st span{font-size:12.5px;color:var(--txt-2)}
.invite-panel{
  background:linear-gradient(160deg,rgba(24,35,56,.95),rgba(13,18,32,.95));
  border:1px solid var(--line-strong);border-radius:var(--radius-xl);
  padding:28px;box-shadow:var(--shadow-m);
}
.invite-panel h3{font-size:19px;font-weight:800;margin-bottom:6px}
.invite-panel .ip-sub{font-size:13.5px;color:var(--txt-2);margin-bottom:20px}
.progress-row{margin-bottom:16px}
.progress-row .pr-top{display:flex;justify-content:space-between;font-size:13px;color:var(--txt-1);margin-bottom:7px}
.progress-track{height:10px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-2),var(--brand-1));box-shadow:0 0 16px rgba(79,124,255,.7)}
.progress-fill.gold{background:linear-gradient(90deg,var(--gold-2),var(--gold-1));box-shadow:0 0 16px rgba(245,158,11,.6)}
.invite-form{display:flex;gap:10px;margin-top:6px}
.invite-form input{
  flex:1;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  border-radius:999px;padding:12px 18px;font-size:14px;color:#fff;
}
.invite-form input::placeholder{color:var(--txt-2)}
.invite-form input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.invite-note{font-size:12px;color:var(--txt-2);margin-top:12px}

/* capability cards */
.cap-card{display:flex;flex-direction:column;gap:12px}
.cap-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(140deg,rgba(79,124,255,.22),rgba(168,85,247,.2));
  border:1px solid var(--line-strong);color:var(--brand-2);
}
.cap-card h3{font-size:16.5px;font-weight:800}
.cap-card p{font-size:14px;color:var(--txt-1)}

/* status board */
.status-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.status-item{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius-m);padding:18px;
}
.status-item .dot{width:10px;height:10px;border-radius:50%;margin-top:7px;flex:none;background:var(--ok);box-shadow:0 0 12px var(--ok)}
.status-item .dot.warn{background:var(--gold-1);box-shadow:0 0 12px var(--gold-1)}
.status-item h4{font-size:15px;font-weight:700}
.status-item p{font-size:13.5px;color:var(--txt-2)}

/* roadmap */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3),transparent)}
.tl-item{position:relative;padding-bottom:26px}
.tl-item::before{content:"";position:absolute;left:-30px;top:6px;width:18px;height:18px;border-radius:50%;background:var(--bg-1);border:2px solid var(--brand-1)}
.tl-item.done::before{border-color:var(--ok);background:rgba(52,211,153,.25)}
.tl-item h4{font-size:16px;font-weight:800}
.tl-item p{font-size:14px;color:var(--txt-1)}

/* news */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:32px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:flex;gap:18px;background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--radius-m);padding:16px;
  transition:transform .22s,border-color .22s;
}
.news-item:hover{transform:translateX(5px);border-color:var(--line-strong)}
.news-thumb{width:132px;height:92px;border-radius:12px;object-fit:cover;flex:none;border:1px solid var(--line)}
.news-body h3{font-size:15.5px;font-weight:700;line-height:1.4;margin-bottom:7px}
.news-body p{font-size:13.5px;color:var(--txt-2);margin-bottom:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;gap:14px;font-size:12px;color:var(--txt-2);align-items:center}
.news-meta i{color:var(--brand-2)}
.side-box{background:linear-gradient(160deg,var(--bg-3),var(--bg-1));border:1px solid var(--line-strong);border-radius:var(--radius-l);padding:24px}
.side-box h3{font-size:17px;font-weight:800;margin-bottom:16px}
.side-box .s-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.side-box .s-item:last-child{border-bottom:none}
.side-box .s-num{font-size:20px;font-weight:900;color:var(--brand-2);min-width:30px;line-height:1.2}
.side-box .s-item a{font-size:13.8px;color:var(--txt-1);line-height:1.45}
.side-box .s-item a:hover{color:#fff}

/* channels */
.channels{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.channel{
  display:flex;flex-direction:column;gap:10px;align-items:flex-start;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius-m);padding:20px;transition:background .2s,transform .2s;
}
.channel:hover{background:rgba(79,124,255,.09);transform:translateY(-3px)}
.channel i{font-size:22px;color:var(--brand-2)}
.channel b{font-size:15px}
.channel span{font-size:13px;color:var(--txt-2)}

/* faq */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-m);background:rgba(255,255,255,.025);margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:19px 22px;font-size:15.5px;font-weight:700;display:flex;justify-content:space-between;gap:16px;align-items:center;color:var(--txt-0)}
.faq-q i{transition:transform .25s;color:var(--brand-2)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:340px;padding-bottom:20px}
.faq-a p{font-size:14.3px;color:var(--txt-1)}

/* trust strip */
.trust-strip{
  display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between;align-items:center;
  border:1px solid var(--line);border-radius:var(--radius-l);
  background:linear-gradient(120deg,rgba(24,35,56,.85),rgba(13,18,32,.85));
  padding:22px 28px;
}
.trust-strip .ti{display:flex;gap:11px;align-items:center;font-size:13.5px;color:var(--txt-1)}
.trust-strip .ti i{font-size:19px;color:var(--gold-1)}

/* final */
.final-cta{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  padding:52px 34px;text-align:center;
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(79,124,255,.22),rgba(168,85,247,.18)),url('/assets/images/bd4168cb8828df99.jpg') center/cover no-repeat;
}
.final-cta h2{font-size:clamp(23px,3.2vw,36px);font-weight:900;margin-bottom:14px}
.final-cta p{color:var(--txt-1);max-width:680px;margin:0 auto 26px;font-size:15px}
.final-cta .fb{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-footer{border-top:1px solid var(--line);background:rgba(7,10,18,.9);margin-top:20px;padding:52px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.foot-grid h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.foot-grid p,.foot-grid li{font-size:13.6px;color:var(--txt-2);line-height:1.75}
.foot-grid a{color:var(--txt-2)}
.foot-grid a:hover{color:var(--brand-2)}
.foot-grid ul li{margin-bottom:9px}
.foot-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.foot-badges span{font-size:11.5px;border:1px solid var(--line-strong);border-radius:8px;padding:5px 10px;color:var(--txt-1)}
.foot-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.6px;color:var(--txt-2)}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;color:#fff;font-size:20px;
  background:linear-gradient(140deg,var(--brand-1),var(--brand-3));
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 12px 34px rgba(79,124,255,.5);
  opacity:.85;animation:floaty 3s ease-in-out infinite;
  transition:transform .25s,opacity .25s;
}
.fab:hover{opacity:1;transform:scale(1.1)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .fab-badge{position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;background:#ef4444;border:2px solid #fff}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

@media(max-width:1024px){
  .hero-grid,.asym,.news-layout{grid-template-columns:1fr}
  .grid-4,.channels,.foot-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .burger{display:grid;place-items:center}
  .nav-wrap{height:66px}
  section{padding:50px 0}
  .grid-3,.grid-4,.grid-2,.channels,.status-grid,.foot-grid{grid-template-columns:1fr}
  .hero{padding:34px 0 46px}
  .news-item{flex-direction:column}
  .news-thumb{width:100%;height:170px}
  .final-cta{padding:40px 22px}
  .invite-form{flex-direction:column}
  .invite-form .btn{width:100%}
}
@media(max-width:520px){
  .container{padding:0 15px}
  .hero-stats{gap:20px}
  .logo-text .l2{font-size:13px}
  .btn{padding:12px 20px;font-size:13.5px}
  .fab{width:52px;height:52px;font-size:18px;bottom:88px}
}

/* roulang page: article */
:root{
  --bg-0:#070a12;
  --bg-1:#0d1220;
  --bg-2:#121a2b;
  --bg-3:#182338;
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(140,180,255,.32);
  --txt-0:#f5f8ff;
  --txt-1:#c3cee4;
  --txt-2:#8b98b4;
  --brand-1:#4f7cff;
  --brand-2:#22d3ee;
  --brand-3:#a855f7;
  --gold-1:#fbbf24;
  --gold-2:#f59e0b;
  --ok:#34d399;
  --danger:#fb7185;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 4px 14px rgba(3,7,20,.5);
  --shadow-m:0 14px 40px rgba(3,7,20,.6);
  --shadow-glow:0 12px 46px rgba(79,124,255,.35);
  --gap:24px;
  --container:1200px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--txt-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(79,124,255,.20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(168,85,247,.16), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(34,211,238,.10), transparent 65%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
section{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);
  background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.26);
  padding:6px 14px;border-radius:999px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:14.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand-1),var(--brand-3));
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(120,90,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--txt-0);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,var(--gold-1),var(--gold-2));
  color:#211400;box-shadow:0 12px 40px rgba(245,158,11,.34);
}
.btn-gold:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px}
.tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 11px;border-radius:999px;text-transform:uppercase;
  background:rgba(79,124,255,.14);color:#9db6ff;border:1px solid rgba(79,124,255,.3);
}
.tag.gold{background:rgba(251,191,36,.13);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.tag.green{background:rgba(52,211,153,.13);color:#6ee7b7;border-color:rgba(52,211,153,.3)}
.card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16.5px;letter-spacing:-.02em}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-3));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:900;
  box-shadow:0 8px 24px rgba(79,124,255,.45);
}
.logo-text span{display:block}
.logo-text .l1{font-size:9.5px;color:var(--brand-2);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.logo-text .l2{font-size:15px;line-height:1.15}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--txt-1);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.35)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-login{font-size:14px;font-weight:700;color:var(--gold-1);padding:9px 4px}
.nav-login:hover{color:#fde68a}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;border-top:1px solid var(--line);background:rgba(7,10,18,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 12px;border-radius:10px;font-weight:600;color:var(--txt-1)}
.mobile-menu a.active{color:#fff;background:rgba(79,124,255,.18)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:8px}
.nav-toggle{
  display:none;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
  width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;cursor:pointer;
}
/* ARTICLE HERO */
.art-hero{
  position:relative;padding:48px 0 40px;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.art-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.78),rgba(7,10,18,.95)),
             url('/assets/images/bd4168cb8828df99.jpg') center/cover no-repeat;
  z-index:-1;
}
.art-crumb{font-size:13px;color:var(--txt-2);margin-bottom:16px}
.art-crumb a{color:var(--txt-1)}
.art-crumb a:hover{color:var(--brand-2)}
.art-hero h1{
  font-size:clamp(24px,3.4vw,42px);font-weight:900;line-height:1.2;letter-spacing:-.02em;
  margin:14px 0 16px;max-width:920px;
}
.art-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--txt-2);align-items:center}
.art-meta i{color:var(--brand-2);margin-right:6px}
/* ARTICLE LAYOUT */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:38px;align-items:start}
.art-body{max-width:760px}
.art-body h2{
  font-size:24px;font-weight:800;margin:38px 0 14px;letter-spacing:-.01em;
  color:var(--txt-0);line-height:1.3;
}
.art-body h3{font-size:19px;font-weight:700;margin:28px 0 10px;color:var(--txt-0)}
.art-body p{margin:0 0 16px;color:var(--txt-1);font-size:16px}
.art-body ul,.art-body ol{margin:0 0 18px;padding-left:22px;color:var(--txt-1)}
.art-body li{margin-bottom:9px;font-size:15.5px}
.art-body img{border-radius:var(--radius-m);margin:22px 0;border:1px solid var(--line)}
.art-body a{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px}
.art-body a:hover{color:#67e8f9}
.art-body blockquote{
  border-left:3px solid var(--brand-1);background:rgba(79,124,255,.08);
  padding:14px 20px;border-radius:0 var(--radius-s) var(--radius-s) 0;margin:20px 0;color:var(--txt-1);
}
.art-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.art-body th,.art-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.art-body th{background:rgba(79,124,255,.12);color:var(--txt-0);font-weight:700}
.art-body td{color:var(--txt-1)}
/* SIDEBAR */
.art-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--radius-l);padding:24px;
}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:14px;color:var(--txt-0)}
.side-card p{font-size:14px;color:var(--txt-1);margin-bottom:16px}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--txt-1)}
.side-list li:last-child{border-bottom:none}
.side-list i{color:var(--brand-2);margin-right:8px}
.side-stat{display:flex;justify-content:space-between;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line)}
.side-stat:last-child{border-bottom:none}
.side-stat b{color:var(--gold-1)}
/* RELATED */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rel-card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.rel-card img{width:100%;height:170px;object-fit:cover}
.rel-card .rel-in{padding:20px}
.rel-card h3{font-size:16.5px;font-weight:800;margin:10px 0 8px;line-height:1.4}
.rel-card h3 a:hover{color:var(--brand-2)}
.rel-card p{font-size:14px;color:var(--txt-1);margin:0}
/* FAQ */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(255,255,255,.02);margin-bottom:12px;overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:17px 20px;font-size:15.5px;font-weight:700;color:var(--txt-0);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-q i{color:var(--brand-2);transition:transform .25s ease}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px;color:var(--txt-1);font-size:15px}
.faq-item.open .faq-a{max-height:320px;padding:0 20px 18px}
/* CTA */
.cta-band{
  background:linear-gradient(120deg,rgba(79,124,255,.18),rgba(168,85,247,.14));
  border:1px solid var(--line-strong);border-radius:var(--radius-xl);
  padding:40px;text-align:center;
}
.cta-band h2{font-size:26px;font-weight:900;margin-bottom:12px}
.cta-band p{color:var(--txt-1);max-width:640px;margin:0 auto 24px}
/* FOOTER */
.site-footer{
  border-top:1px solid var(--line);margin-top:64px;padding:56px 0 26px;
  background:linear-gradient(180deg,transparent,rgba(7,10,18,.72));
  position:relative;z-index:1;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.site-footer p{font-size:14px;color:var(--txt-2);line-height:1.7}
.site-footer h4{font-size:14.5px;font-weight:800;margin-bottom:16px;color:var(--txt-0)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{font-size:14px;color:var(--txt-1)}
.site-footer ul a:hover{color:var(--brand-2)}
.foot-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.foot-badges span{
  font-size:11.5px;font-weight:700;padding:5px 11px;border-radius:999px;
  background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.28);color:#6ee7b7;
}
.foot-bottom{
  border-top:1px solid var(--line);margin-top:38px;padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-2);
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  background:radial-gradient(circle at 30% 25%,#1b2740,#0a0f1c 70%);
  border:2px solid var(--gold-1);
  display:grid;place-items:center;cursor:pointer;
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  transition:transform .25s ease,opacity .25s ease;
  opacity:.85;animation:fabFloat 3.2s ease-in-out infinite;
}
.fab:hover{transform:scale(1.1);opacity:1}
.fab:active{transform:scale(.95) translateY(3px)}
.fab i{color:var(--gold-1);font-size:22px;transition:transform .5s ease}
.fab:hover i{transform:rotate(360deg)}
.fab .dot{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;
  background:#dc2626;border:2px solid #fff;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (max-width:1024px){
  .art-layout{grid-template-columns:1fr}
  .art-side{position:static}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{margin-left:auto}
}
@media (max-width:640px){
  .grid-3,.grid-4,.rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .nav-cta .btn{padding:10px 16px;font-size:13px}
  .nav-login{font-size:13px}
  section{padding:46px 0}
  .art-hero{padding:34px 0 30px}
  .cta-band{padding:28px 20px}
  .fab{left:12px;bottom:84px;width:52px;height:52px}
}

/* roulang page: category1 */
:root{
  --bg-0:#070a12;
  --bg-1:#0d1220;
  --bg-2:#121a2b;
  --bg-3:#182338;
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(140,180,255,.32);
  --txt-0:#f5f8ff;
  --txt-1:#c3cee4;
  --txt-2:#8b98b4;
  --brand-1:#4f7cff;
  --brand-2:#22d3ee;
  --brand-3:#a855f7;
  --gold-1:#fbbf24;
  --gold-2:#f59e0b;
  --ok:#34d399;
  --danger:#fb7185;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 4px 14px rgba(3,7,20,.5);
  --shadow-m:0 14px 40px rgba(3,7,20,.6);
  --shadow-glow:0 12px 46px rgba(79,124,255,.35);
  --gap:24px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--txt-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(79,124,255,.20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(168,85,247,.16), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(34,211,238,.10), transparent 65%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
section{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);
  background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.26);
  padding:6px 14px;border-radius:999px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:14.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand-1),var(--brand-3));
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(120,90,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--txt-0);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,var(--gold-1),var(--gold-2));
  color:#211400;box-shadow:0 12px 40px rgba(245,158,11,.34);
}
.btn-gold:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px}
.tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 11px;border-radius:999px;text-transform:uppercase;
  background:rgba(79,124,255,.14);color:#9db6ff;border:1px solid rgba(79,124,255,.3);
}
.tag.gold{background:rgba(251,191,36,.13);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.tag.green{background:rgba(52,211,153,.13);color:#6ee7b7;border-color:rgba(52,211,153,.3)}
.card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16.5px;letter-spacing:-.02em}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-3));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:900;
  box-shadow:0 8px 24px rgba(79,124,255,.45);
}
.logo-text span{display:block}
.logo-text .l1{font-size:9.5px;color:var(--brand-2);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.logo-text .l2{font-size:15px;line-height:1.15}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--txt-1);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.35)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-login{font-size:14px;font-weight:700;color:var(--gold-1);padding:9px 4px}
.nav-login:hover{color:#fde68a}
.burger{display:none;background:none;border:1px solid var(--line-strong);border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;color:var(--txt-0)}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;border-top:1px solid var(--line);background:rgba(7,10,18,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 12px;border-radius:10px;font-weight:600;color:var(--txt-1)}
.mobile-menu a.active{color:#fff;background:rgba(79,124,255,.18)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:8px}
/* PAGE HERO */
.page-hero{
  position:relative;padding:46px 0 52px;overflow:hidden;
  background:linear-gradient(180deg,rgba(7,10,18,.74),rgba(7,10,18,.94)),
             url('/assets/images/bd4168cb8828df99.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.page-hero h1{
  font-size:clamp(26px,3.7vw,44px);
  font-weight:900;line-height:1.18;letter-spacing:-.02em;margin:16px 0 14px;
}
.page-hero h1 .hl{
  background:linear-gradient(100deg,var(--brand-2),var(--brand-1) 45%,var(--brand-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero p.lead{font-size:15.5px;color:var(--txt-1);max-width:600px}
.searchbar{
  display:flex;align-items:center;gap:10px;margin-top:24px;max-width:520px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  border-radius:999px;padding:7px 7px 7px 18px;
}
.searchbar input{
  flex:1;background:none;border:0;outline:none;font-size:14.5px;color:var(--txt-0);
}
.searchbar input::placeholder{color:var(--txt-2)}
.searchbar button{border:0;border-radius:999px;padding:11px 20px;font-weight:700;font-size:14px;cursor:pointer;background:linear-gradient(120deg,var(--brand-1),var(--brand-3));color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.chips a{
  font-size:12.5px;font-weight:600;color:var(--txt-1);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  background:rgba(255,255,255,.03);transition:.2s;
}
.chips a:hover{color:#fff;border-color:var(--line-strong);background:rgba(255,255,255,.08)}
.hero-panel{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line-strong);border-radius:var(--radius-xl);
  padding:24px;box-shadow:var(--shadow-m);
}
.hero-panel .hp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.hp-status{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:#6ee7b7}
.hp-dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 5px rgba(52,211,153,.16);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.meter{margin-bottom:16px}
.meter .m-top{display:flex;justify-content:space-between;font-size:13px;color:var(--txt-1);margin-bottom:7px}
.meter .m-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.meter .m-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-2),var(--brand-1))}
.hero-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.hero-mini div{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-m);padding:14px}
.hero-mini .num{font-size:21px;font-weight:900;color:#fff}
.hero-mini .lbl{font-size:11.5px;color:var(--txt-2);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:clamp(21px,2.6vw,32px);font-weight:900;line-height:1.25;letter-spacing:-.02em;margin:14px 0 10px}
.sec-head p{color:var(--txt-1);font-size:15px}
.sec-alt{background:linear-gradient(180deg,rgba(18,26,43,.6),rgba(13,18,32,.3));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
/* FEATURE / BENEFIT */
.feat{display:flex;gap:16px;align-items:flex-start}
.feat .ic{
  flex:none;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(79,124,255,.15);color:#9db6ff;font-size:18px;border:1px solid rgba(79,124,255,.3);
}
.feat h3{font-size:16.5px;font-weight:800;margin-bottom:6px}
.feat p{font-size:14px;color:var(--txt-1)}
/* SCENARIO */
.scene{
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  transition:transform .25s,border-color .25s;
}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.scene img{height:172px;width:100%;object-fit:cover}
.scene .body{padding:22px}
.scene h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.scene p{font-size:14px;color:var(--txt-1)}
/* STEPS */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);counter-reset:step}
.step{position:relative;padding:26px 22px;border-radius:var(--radius-l);background:linear-gradient(160deg,var(--bg-2),var(--bg-1));border:1px solid var(--line)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:34px;font-weight:900;line-height:1;
  background:linear-gradient(120deg,var(--brand-2),var(--brand-1));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:14px;
}
.step h3{font-size:16px;font-weight:800;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--txt-1)}
/* TRUST STRIP */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.trust .tcell{display:flex;align-items:center;gap:13px;padding:18px;border-radius:var(--radius-m);background:rgba(255,255,255,.03);border:1px solid var(--line)}
.trust .tcell i{font-size:20px;color:var(--gold-1)}
.trust .tcell strong{display:block;font-size:14px}
.trust .tcell span{font-size:12.5px;color:var(--txt-2)}
/* LIST / NEWS */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .3s;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.news-card img{height:168px;width:100%;object-fit:cover}
.news-card .nc-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card h3{font-size:15.5px;font-weight:800;line-height:1.4;margin:10px 0 8px}
.news-card p{font-size:13.5px;color:var(--txt-1);flex:1}
.news-card .nc-meta{margin-top:14px;font-size:12px;color:var(--txt-2);display:flex;align-items:center;gap:8px}
.news-more{margin-top:34px;display:flex;justify-content:center}
.empty-note{padding:34px;text-align:center;color:var(--txt-2);border:1px dashed var(--line-strong);border-radius:var(--radius-l);font-size:14px}
/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-m);background:rgba(255,255,255,.03);overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:15px;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--brand-2);font-size:13px;transition:.25s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;font-size:14px;color:var(--txt-1)}
/* CTA */
.cta-band{
  border-radius:var(--radius-xl);
  background:linear-gradient(120deg,rgba(79,124,255,.2),rgba(168,85,247,.16));
  border:1px solid var(--line-strong);
  padding:46px;display:grid;grid-template-columns:1.4fr auto;gap:30px;align-items:center;
}
.cta-band h2{font-size:clamp(20px,2.4vw,30px);font-weight:900;line-height:1.25;margin-bottom:10px}
.cta-band p{color:var(--txt-1);font-size:15px;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* FOOTER */
.site-footer{background:rgba(7,10,18,.94);border-top:1px solid var(--line);padding:52px 0 26px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px}
.site-footer h4{font-size:14px;font-weight:800;margin-bottom:14px;color:#fff;letter-spacing:.02em}
.site-footer p{font-size:13.5px;color:var(--txt-2)}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.site-footer ul a{font-size:13.5px;color:var(--txt-1);transition:.2s}
.site-footer ul a:hover{color:var(--brand-2)}
.foot-badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.foot-badges span{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#9db6ff;border:1px solid rgba(79,124,255,.3);background:rgba(79,124,255,.1);border-radius:999px;padding:5px 11px}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--txt-2);
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--bg-3),var(--bg-1));
  border:2px solid var(--gold-1);
  color:var(--gold-1);font-size:20px;
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  opacity:.85;transition:transform .25s,opacity .25s,box-shadow .3s;
  animation:floaty 3.2s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1)}
.fab:active{transform:scale(.94) translateY(2px)}
.fab .gem{position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:50%;background:#dc2626;border:2px solid #fff}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
/* RESPONSIVE */
@media(max-width:1024px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
  .page-hero-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .trust{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  section{padding:48px 0}
  .page-hero{padding:34px 0 42px}
  .grid-2{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .grid-3,.grid-4,.steps,.trust,.news-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .logo-text .l2{font-size:13.5px}
  .hero-mini{grid-template-columns:1fr}
  .page-hero h1{font-size:25px}
  .foot-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --bg-0:#070a12;
  --bg-1:#0d1220;
  --bg-2:#121a2b;
  --bg-3:#182338;
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(140,180,255,.32);
  --txt-0:#f5f8ff;
  --txt-1:#c3cee4;
  --txt-2:#8b98b4;
  --brand-1:#4f7cff;
  --brand-2:#22d3ee;
  --brand-3:#a855f7;
  --gold-1:#fbbf24;
  --gold-2:#f59e0b;
  --ok:#34d399;
  --danger:#fb7185;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 4px 14px rgba(3,7,20,.5);
  --shadow-m:0 14px 40px rgba(3,7,20,.6);
  --shadow-glow:0 12px 46px rgba(79,124,255,.35);
  --gap:24px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--txt-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(79,124,255,.20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(168,85,247,.16), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(34,211,238,.10), transparent 65%);
  pointer-events:none;z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1}
main{position:relative;z-index:1}
section{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.26);padding:6px 14px;border-radius:999px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:14.5px;
  cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--brand-1),var(--brand-3));color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(120,90,255,.5)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--txt-0);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,var(--gold-1),var(--gold-2));color:#211400;box-shadow:0 12px 40px rgba(245,158,11,.34)}
.btn-gold:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px}
.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;padding:5px 11px;border-radius:999px;text-transform:uppercase;background:rgba(79,124,255,.14);color:#9db6ff;border:1px solid rgba(79,124,255,.3)}
.tag.gold{background:rgba(251,191,36,.13);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.tag.green{background:rgba(52,211,153,.13);color:#6ee7b7;border-color:rgba(52,211,153,.3)}
.card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--radius-l);padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
/* HEADER */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,10,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16.5px;letter-spacing:-.02em}
.logo-mark{width:40px;height:40px;border-radius:12px;flex:none;background:linear-gradient(135deg,var(--brand-1),var(--brand-3));display:grid;place-items:center;color:#fff;font-size:15px;font-weight:900;box-shadow:0 8px 24px rgba(79,124,255,.45)}
.logo-text span{display:block}
.logo-text .l1{font-size:9.5px;color:var(--brand-2);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.logo-text .l2{font-size:15px;line-height:1.15}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--txt-1);transition:color .2s,background .2s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.35)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-login{font-size:14px;font-weight:700;color:var(--gold-1);padding:9px 4px}
.nav-login:hover{color:#fde68a}
.menu-toggle{display:none;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:#fff;width:42px;height:42px;border-radius:12px;cursor:pointer}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;border-top:1px solid var(--line);background:rgba(7,10,18,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 12px;border-radius:10px;font-weight:600;color:var(--txt-1)}
.mobile-menu a.active{color:#fff;background:rgba(79,124,255,.18)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:8px;flex-wrap:wrap}
/* HERO */
.hero{position:relative;padding:56px 0 64px;overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,.74),rgba(7,10,18,.95)),url('/assets/images/c2f8f85e5e54d5f4.jpg') center/cover no-repeat;
  z-index:-1;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(27px,4.3vw,50px);font-weight:900;line-height:1.15;letter-spacing:-.025em;margin:16px 0 16px}
.hero h1 .hl{background:linear-gradient(100deg,var(--brand-2),var(--brand-1) 45%,var(--brand-3));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16px;color:var(--txt-1);max-width:640px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 22px}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}
.hero-stats .num{font-size:22px;font-weight:900;color:#fff}
.hero-stats .lbl{font-size:12.5px;color:var(--txt-2)}
.hero-panel{background:linear-gradient(160deg,var(--bg-2),rgba(13,18,32,.7));border:1px solid var(--line-strong);border-radius:var(--radius-xl);padding:28px;box-shadow:var(--shadow-m)}
.hero-panel h3{font-size:18px;font-weight:800;margin-bottom:16px}
.status-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px dashed var(--line)}
.status-row:last-child{border-bottom:none}
.status-row .k{font-size:13.5px;color:var(--txt-1)}
.status-row .v{font-size:13.5px;font-weight:700}
.dot{width:9px;height:9px;border-radius:50%;background:var(--ok);display:inline-block;margin-right:7px;box-shadow:0 0 12px rgba(52,211,153,.9)}
.dot.b{background:var(--brand-2);box-shadow:0 0 12px rgba(34,211,238,.9)}
.dot.g{background:var(--gold-1);box-shadow:0 0 12px rgba(251,191,36,.9)}
/* SECTION HEAD */
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head h2{font-size:clamp(22px,3vw,34px);font-weight:900;line-height:1.22;letter-spacing:-.02em;margin:14px 0 12px}
.sec-head p{color:var(--txt-1);font-size:15.5px}
.alt{background:linear-gradient(180deg,rgba(18,26,43,.55),rgba(7,10,18,0))}
/* FEATURE */
.feat-icon{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:19px;margin-bottom:16px}
.feat-icon.blue{background:rgba(79,124,255,.16);color:#93b4ff;border:1px solid rgba(79,124,255,.34)}
.feat-icon.cyan{background:rgba(34,211,238,.14);color:#67e8f9;border:1px solid rgba(34,211,238,.3)}
.feat-icon.violet{background:rgba(168,85,247,.15);color:#d8b4fe;border:1px solid rgba(168,85,247,.32)}
.feat-icon.gold{background:rgba(251,191,36,.14);color:#fcd34d;border:1px solid rgba(251,191,36,.32)}
.feat-icon.green{background:rgba(52,211,153,.14);color:#6ee7b7;border:1px solid rgba(52,211,153,.3)}
.feat-icon.rose{background:rgba(251,113,133,.14);color:#fda4af;border:1px solid rgba(251,113,133,.3)}
.card h3{font-size:17.5px;font-weight:800;margin-bottom:9px}
.card p{color:var(--txt-1);font-size:14.5px}
.card ul{list-style:none;margin-top:12px;display:grid;gap:8px}
.card ul li{font-size:14px;color:var(--txt-1);display:flex;gap:9px;align-items:flex-start}
.card ul li i{color:var(--brand-2);margin-top:5px;font-size:11px}
/* SCENARIO */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.scene img{border-radius:var(--radius-l);border:1px solid var(--line);box-shadow:var(--shadow-m)}
.scene h3{font-size:22px;font-weight:900;margin-bottom:12px}
.step-list{list-style:none;display:grid;gap:16px;margin-top:18px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-num{width:34px;height:34px;flex:none;border-radius:11px;background:linear-gradient(135deg,var(--brand-1),var(--brand-3));display:grid;place-items:center;font-weight:900;font-size:14px;color:#fff}
.step-list b{display:block;font-size:15px;margin-bottom:3px}
.step-list span{font-size:14px;color:var(--txt-1)}
/* METRICS */
.metric{text-align:left;padding:22px;border-radius:var(--radius-l);background:linear-gradient(160deg,var(--bg-2),var(--bg-1));border:1px solid var(--line)}
.metric .n{font-size:30px;font-weight:900;background:linear-gradient(100deg,var(--brand-2),var(--brand-1));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric .t{font-size:14px;color:var(--txt-1);margin-top:6px}
/* PAY */
.pay-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.pay-chip{display:flex;align-items:center;gap:10px;padding:13px 18px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line-strong);font-weight:700;font-size:14px}
.pay-chip i{color:var(--gold-1)}
/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-m);background:linear-gradient(160deg,var(--bg-2),var(--bg-1));margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;text-align:left;padding:18px 22px;background:none;border:none;cursor:pointer;font-weight:700;font-size:15.5px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-q i{color:var(--brand-2);transition:transform .25s}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:400px;padding-bottom:20px}
.faq-a p{color:var(--txt-1);font-size:14.5px}
/* CTA BAND */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-xl);padding:46px;background:linear-gradient(120deg,rgba(79,124,255,.24),rgba(168,85,247,.2));border:1px solid var(--line-strong);text-align:center}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:900;margin-bottom:12px}
.cta-band p{color:var(--txt-1);max-width:640px;margin:0 auto 24px}
/* NEWS */
.news-card{overflow:hidden;padding:0}
.news-card img{width:100%;height:190px;object-fit:cover}
.news-body{padding:20px 22px 24px}
.news-body h3{font-size:16.5px;font-weight:800;margin:10px 0 8px;line-height:1.4}
.news-body p{font-size:14px;color:var(--txt-1)}
.news-meta{display:flex;gap:14px;font-size:12.5px;color:var(--txt-2);margin-top:14px}
/* CAT ENTRY */
.cat-entry{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.cat-card{display:flex;flex-direction:column;gap:12px;padding:26px;border-radius:var(--radius-l);background:linear-gradient(160deg,var(--bg-3),var(--bg-1));border:1px solid var(--line);transition:transform .25s,border-color .25s}
.cat-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.cat-card .ci{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:19px;background:rgba(79,124,255,.16);border:1px solid rgba(79,124,255,.34);color:#93b4ff}
.cat-card h3{font-size:17px;font-weight:800}
.cat-card p{font-size:14px;color:var(--txt-1)}
.cat-card .more{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand-2);display:inline-flex;gap:7px;align-items:center}
/* FOOTER */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(13,18,32,.6),rgba(7,10,18,1));padding:56px 0 28px;margin-top:20px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;color:var(--txt-1)}
.site-footer ul{list-style:none;display:grid;gap:9px}
.site-footer ul a{font-size:14px;color:var(--txt-1)}
.site-footer ul a:hover{color:var(--brand-2)}
.foot-badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}
.foot-badges span{font-size:11.5px;font-weight:700;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:var(--txt-1)}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:34px;padding-top:22px;font-size:13px;color:var(--txt-2)}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:50%;
  background:radial-gradient(circle at 30% 25%,#1b2440,#070a12);
  border:2px solid var(--gold-1);display:grid;place-items:center;color:var(--gold-1);
  font-size:20px;box-shadow:0 6px 25px rgba(245,158,11,.35);cursor:pointer;
  animation:fabFloat 3s ease-in-out infinite;transition:transform .25s,opacity .25s;
}
.fab:hover{transform:scale(1.1)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .badge{position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;background:#dc2626;border:2px solid #fff}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .scene{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cat-entry{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  section{padding:48px 0}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .foot-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero{padding:36px 0 44px}
  .hero-stats{gap:18px}
  .card{padding:20px}
  .foot-grid{grid-template-columns:1fr}
  .fab{width:52px;height:52px;bottom:88px}
}

/* roulang page: category3 */
:root{
  --bg-0:#070a12;
  --bg-1:#0d1220;
  --bg-2:#121a2b;
  --bg-3:#182338;
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(140,180,255,.32);
  --txt-0:#f5f8ff;
  --txt-1:#c3cee4;
  --txt-2:#8b98b4;
  --brand-1:#4f7cff;
  --brand-2:#22d3ee;
  --brand-3:#a855f7;
  --gold-1:#fbbf24;
  --gold-2:#f59e0b;
  --ok:#34d399;
  --danger:#fb7185;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:32px;
  --shadow-s:0 4px 14px rgba(3,7,20,.5);
  --shadow-m:0 14px 40px rgba(3,7,20,.6);
  --shadow-glow:0 12px 46px rgba(79,124,255,.35);
  --gap:24px;
  --container:1200px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--txt-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  margin:0;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(79,124,255,.20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(168,85,247,.16), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(34,211,238,.10), transparent 65%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
main{position:relative;z-index:1}
section{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);
  background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.26);
  padding:6px 14px;border-radius:999px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:14.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand-1),var(--brand-3));
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(120,90,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--txt-0);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,var(--gold-1),var(--gold-2));
  color:#211400;box-shadow:0 12px 40px rgba(245,158,11,.34);
}
.btn-gold:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:8px}
.tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 11px;border-radius:999px;text-transform:uppercase;
  background:rgba(79,124,255,.14);color:#9db6ff;border:1px solid rgba(79,124,255,.3);
}
.tag.gold{background:rgba(251,191,36,.13);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.tag.green{background:rgba(52,211,153,.13);color:#6ee7b7;border-color:rgba(52,211,153,.3)}
.card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16.5px;letter-spacing:-.02em}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-3));
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:900;
  box-shadow:0 8px 24px rgba(79,124,255,.45);
}
.logo-text span{display:block}
.logo-text .l1{font-size:9.5px;color:var(--brand-2);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.logo-text .l2{font-size:15px;line-height:1.15}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--txt-1);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.35)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-login{font-size:14px;font-weight:700;color:var(--gold-1);padding:9px 4px}
.nav-login:hover{color:#fde68a}
.burger{display:none;background:none;border:1px solid var(--line-strong);color:#fff;width:42px;height:42px;border-radius:11px;font-size:16px}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;border-top:1px solid var(--line);background:rgba(7,10,18,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 12px;border-radius:10px;font-weight:600;color:var(--txt-1)}
.mobile-menu a.active{color:#fff;background:rgba(79,124,255,.18)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:8px}
/* HERO (category, khác index) */
.cat-hero{
  position:relative;
  padding:60px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(7,10,18,.95) 30%,rgba(7,10,18,.62) 100%),
             url('/assets/images/bd4168cb8828df99.jpg') center/cover no-repeat;
  z-index:-1;
}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.cat-hero h1{
  font-size:clamp(26px,3.9vw,46px);
  font-weight:900;line-height:1.16;letter-spacing:-.025em;margin:16px 0 18px;
}
.cat-hero h1 .hl{
  background:linear-gradient(100deg,var(--brand-2),var(--brand-1) 48%,var(--brand-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero p{color:var(--txt-1);font-size:15.5px;max-width:620px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-panel{
  background:linear-gradient(165deg,rgba(24,35,56,.92),rgba(13,18,32,.94));
  border:1px solid var(--line-strong);
  border-radius:var(--radius-xl);
  padding:26px;
  box-shadow:var(--shadow-m);
}
.hero-panel h3{font-size:15px;font-weight:800;margin:0 0 16px;color:var(--txt-0)}
.panel-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 0;border-bottom:1px dashed rgba(120,160,255,.2);
  font-size:13.5px;
}
.panel-row:last-child{border-bottom:0}
.panel-row .k{color:var(--txt-2)}
.panel-row .v{font-weight:700;color:var(--txt-0)}
.panel-row .v.ok{color:var(--ok)}
/* SECTION TITLE */
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{
  font-size:clamp(22px,2.7vw,34px);
  font-weight:900;line-height:1.22;letter-spacing:-.02em;margin:12px 0 12px;
}
.sec-head p{color:var(--txt-1);font-size:15px}
.sec-head.left{text-align:left}
/* FEATURE CARD */
.feature{display:flex;flex-direction:column;gap:12px}
.feature .fi{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(79,124,255,.24),rgba(168,85,247,.24));
  border:1px solid var(--line-strong);color:var(--brand-2);font-size:18px;
}
.feature h3{font-size:16.5px;font-weight:800;margin:4px 0 0}
.feature p{font-size:14px;color:var(--txt-1);margin:0}
/* SCENARIO */
.scenario{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  padding:22px;border-radius:var(--radius-m);
  background:rgba(18,26,43,.6);border:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease;
}
.scenario:hover{border-color:var(--line-strong);background:rgba(24,35,56,.75)}
.scenario .num{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-weight:900;font-size:14px;color:#211400;
  background:linear-gradient(135deg,var(--gold-1),var(--gold-2));
}
.scenario h3{font-size:15.5px;font-weight:800;margin:0 0 6px}
.scenario p{font-size:13.8px;color:var(--txt-1);margin:0}
/* STEP LIST */
.steps{display:grid;gap:18px}
.step{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--radius-m);
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
}
.step .sn{
  flex:none;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;font-weight:900;font-size:13px;
  background:rgba(79,124,255,.18);border:1px solid rgba(79,124,255,.42);color:#9db6ff;
}
.step h3{font-size:15.5px;font-weight:800;margin:0 0 5px}
.step p{font-size:14px;color:var(--txt-1);margin:0}
/* STATS */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);
  padding:28px;border-radius:var(--radius-l);
  background:linear-gradient(120deg,rgba(79,124,255,.14),rgba(168,85,247,.12));
  border:1px solid var(--line-strong);
}
.stat{text-align:left}
.stat .n{font-size:clamp(22px,3vw,32px);font-weight:900;color:#fff;line-height:1.1}
.stat .l{font-size:12.6px;color:var(--txt-1);margin-top:6px}
/* MEDIA ROW */
.media-row{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.media-visual{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow-m);
}
.media-visual img{width:100%;height:100%;object-fit:cover}
.media-copy h2{
  font-size:clamp(21px,2.6vw,31px);font-weight:900;line-height:1.24;
  letter-spacing:-.02em;margin:14px 0 14px;
}
.media-copy p{color:var(--txt-1);font-size:15px;margin:0 0 12px}
.check-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:var(--txt-1)}
.check-list li i{color:var(--ok);margin-top:5px}
/* FAQ */
.faq-list{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:20px 22px;font-size:15.3px;font-weight:700;color:var(--txt-0);
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q i{color:var(--brand-2);transition:transform .25s ease}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;margin:0;color:var(--txt-1);font-size:14.2px}
/* CTA */
.cta-band{
  padding:44px 40px;border-radius:var(--radius-xl);
  background:linear-gradient(120deg,rgba(79,124,255,.22),rgba(168,85,247,.2) 60%,rgba(34,211,238,.16));
  border:1px solid var(--line-strong);
  display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.6vw,30px);font-weight:900;margin:8px 0 10px;line-height:1.24}
.cta-band p{color:var(--txt-1);font-size:15px;margin:0}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:12px}
/* NEWS LIST */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-m)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-3)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.news-meta{display:flex;gap:9px;align-items:center;font-size:11.8px;color:var(--txt-2)}
.news-body h3{font-size:15.6px;font-weight:800;margin:0;line-height:1.4}
.news-body h3 a{color:var(--txt-0)}
.news-body h3 a:hover{color:var(--brand-2)}
.news-body p{font-size:13.6px;color:var(--txt-1);margin:0;flex:1}
.news-more{display:flex;justify-content:center;margin-top:34px}
.empty-note{color:var(--txt-2);font-size:14.5px;padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius-m);text-align:center}
/* FOOTER */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,18,32,.6),rgba(7,10,18,.95));
  padding:52px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{font-size:13.5px;font-weight:800;text-transform:uppercase;letter-spacing:.09em;color:var(--txt-0);margin:0 0 14px}
.site-footer p{font-size:13.6px;color:var(--txt-1);margin:0 0 12px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer ul a{font-size:13.8px;color:var(--txt-1)}
.site-footer ul a:hover{color:var(--brand-2)}
.foot-badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}
.foot-badges span{
  font-size:11.4px;font-weight:700;color:var(--txt-1);
  border:1px solid var(--line-strong);border-radius:999px;padding:5px 11px;
}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.6px;color:var(--txt-2);
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-3));
  color:#fff;font-size:20px;
  box-shadow:0 10px 30px rgba(79,124,255,.45);
  opacity:.85;transition:transform .25s ease,opacity .25s ease;
  animation:fabFloat 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1) rotate(8deg)}
.fab:active{transform:scale(.94)}
.fab .dot{
  position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;
  background:#ef4444;border:2px solid #0b0f1a;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stats-band{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr}
  .media-row{grid-template-columns:1fr;gap:26px}
}
@media (max-width:768px){
  .nav-links{display:none}
  .nav-cta .nav-login{display:inline}
  .burger{display:grid;place-items:center}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  section{padding:52px 0}
  .cta-band{padding:30px 22px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .stats-band{grid-template-columns:1fr 1fr;padding:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-hero{padding:44px 0 40px}
  .hero-actions .btn{width:100%}
  .stats-band{grid-template-columns:1fr}
  .fab{width:50px;height:50px;bottom:84px;left:12px}
}