/* roulang page: index */
:root{
  --bg-1:#07070D;
  --bg-2:#0E0E1E;
  --bg-3:#11112a;
  --panel:#12122a;
  --panel-2:#0b0b1c;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --volt-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --pink:#F43F5E;
  --amber:#F59E0B;
  --txt:#FFFFFF;
  --txt-2:#C7D2E0;
  --txt-3:#94A3B8;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 40px -18px rgba(6,182,212,.45);
  --shadow-soft:0 10px 30px -16px rgba(0,0,0,.9);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(163,230,53,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-2) 45%,#07070f 100%);
  color:var(--txt);
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--volt);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section-tight{padding:56px 0}
.sec-head{max-width:820px;margin-bottom:34px}
.sec-head.left{margin-left:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-soft);
  border:1px solid var(--line-strong);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.cyan{color:var(--cyan);background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35)}
.eyebrow.pink{color:var(--pink);background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.h2{font-size:clamp(24px,3.4vw,38px);font-weight:800}
.h3{font-size:clamp(19px,2.2vw,24px);font-weight:700}
.lead{color:var(--txt-2);font-size:clamp(15px,1.6vw,17px);max-width:780px}
.muted{color:var(--txt-3)}
.grad-text{
  background:linear-gradient(92deg,var(--volt),var(--cyan) 55%,#7dd3fc);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,15,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  display:grid;place-items:center;color:#06120a;font-weight:900;font-size:15px;
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.logo-text{font-weight:800;font-size:14px;line-height:1.25;letter-spacing:-.01em}
.logo-text small{display:block;font-weight:600;font-size:11px;color:var(--txt-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--txt-2);
  padding:9px 14px;border-radius:999px;transition:all .25s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--bg-1);background:linear-gradient(135deg,var(--volt),#d9f99d)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-ghost{
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(163,230,53,.45);color:var(--volt);transition:all .25s var(--ease);
}
.btn-ghost:hover{background:var(--volt-soft);transform:translateY(-1px)}
.btn-primary{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--volt),#22d3ee);color:#05121b;
  box-shadow:0 0 18px rgba(163,230,53,.4);transition:all .25s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.nav-toggle{display:none;margin-left:auto;font-size:20px;color:var(--txt-2);padding:8px 12px;border-radius:10px;border:1px solid var(--line)}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 20px 20px;background:rgba(7,7,15,.96)}
.mobile-menu a{display:block;padding:11px 4px;font-weight:600;color:var(--txt-2);border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-menu a.active{color:var(--volt)}
.mobile-menu.open{display:block}

/* HERO */
.hero{position:relative;overflow:hidden;padding:64px 0 54px}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,7,15,.72),rgba(7,7,15,.94)),url('/assets/images/dacded215fcefadd.jpg');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 78% 12%, rgba(6,182,212,.22), transparent 65%),
             radial-gradient(600px 300px at 10% 88%, rgba(163,230,53,.16), transparent 65%);
}
.hero-inner{position:relative;z-index:2}
.hero-main{
  display:grid;grid-template-columns:1.35fr .95fr;gap:40px;align-items:end;
}
.hero h1{font-size:clamp(28px,4.6vw,52px);font-weight:900;letter-spacing:-.02em;line-height:1.16}
.hero-lead{margin-top:20px;color:var(--txt-2);font-size:16.5px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-lg{padding:14px 28px;font-size:15px}
.hero-panel{
  background:linear-gradient(160deg,rgba(18,18,42,.96),rgba(11,11,28,.96));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-soft);
}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:6px}
.metric{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px}
.metric b{display:block;font-size:24px;font-weight:900;color:var(--volt)}
.metric span{font-size:12.5px;color:var(--txt-3)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:var(--txt-2);background:rgba(255,255,255,.045);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.chip i{color:var(--cyan)}

/* PROBLEM */
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.problem-card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.problem-card:hover{transform:translateY(-4px);border-color:rgba(244,63,94,.45)}
.problem-card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(244,63,94,.14);color:var(--pink);font-size:19px;margin-bottom:16px;
}
.problem-card h3{font-size:17.5px;font-weight:800;margin-bottom:10px}
.problem-card p{color:var(--txt-2);font-size:14.5px}

/* DEMO STEPS */
.demo-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center}
.demo-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.demo-visual img{height:100%;width:100%;object-fit:cover;min-height:340px}
.demo-visual .tag{
  position:absolute;top:16px;left:16px;font-size:12px;font-weight:800;
  background:linear-gradient(135deg,var(--volt),var(--cyan));color:#04121a;
  padding:6px 14px;border-radius:999px;
}
.steps{display:grid;gap:16px}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px;transition:all .3s var(--ease);
}
.step:hover{border-color:var(--line-strong);background:rgba(163,230,53,.05)}
.step b.num{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  font-weight:900;font-size:19px;color:#06121a;
  background:linear-gradient(135deg,var(--volt),#22d3ee);
}
.step h4{font-size:16.5px;font-weight:800;margin-bottom:6px}
.step p{font-size:14px;color:var(--txt-2)}

/* RESULTS */
.result-band{
  background:linear-gradient(120deg,rgba(6,182,212,.14),rgba(163,230,53,.1));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:34px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.result-cell b{display:block;font-size:clamp(26px,3.4vw,38px);font-weight:900;color:#fff}
.result-cell b em{font-style:normal;color:var(--volt);font-size:18px;margin-left:2px}
.result-cell span{font-size:13.5px;color:var(--txt-2)}
.result-cell{padding-left:18px;border-left:2px solid rgba(163,230,53,.4)}
.result-cell:first-child{padding-left:0;border-left:0}

/* STUCK POINTS */
.stuck-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.stuck-item{
  display:flex;gap:16px;align-items:flex-start;
  background:linear-gradient(160deg,rgba(20,20,44,.85),rgba(11,11,28,.85));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  transition:all .3s var(--ease);
}
.stuck-item:hover{border-color:rgba(6,182,212,.45);transform:translateX(4px)}
.stuck-item i{color:var(--cyan);font-size:18px;margin-top:3px}
.stuck-item h4{font-size:16px;font-weight:800;margin-bottom:7px}
.stuck-item p{font-size:14px;color:var(--txt-2)}

/* PATH */
.path-track{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.path-node{
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;position:relative;transition:all .3s var(--ease);
}
.path-node:hover{border-color:var(--line-strong);background:rgba(163,230,53,.05)}
.path-node .idx{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--volt);text-transform:uppercase}
.path-node h4{font-size:16.5px;font-weight:800;margin:12px 0 8px}
.path-node p{font-size:14px;color:var(--txt-2)}

/* CATEGORY MATRIX */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  display:block;border-radius:var(--radius-lg);overflow:hidden;position:relative;
  border:1px solid var(--line);background:rgba(11,11,28,.9);
  transition:all .35s var(--ease);
}
.cat-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.cat-card .thumb{height:150px;overflow:hidden}
.cat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.cat-card:hover .thumb img{transform:scale(1.06)}
.cat-card .body{padding:22px}
.cat-card h3{font-size:18px;font-weight:800;margin-bottom:10px}
.cat-card p{font-size:14px;color:var(--txt-2);margin-bottom:16px}
.cat-link{font-size:13.5px;font-weight:800;color:var(--volt);display:inline-flex;align-items:center;gap:8px}
.cat-link i{transition:transform .3s var(--ease)}
.cat-card:hover .cat-link i{transform:translateX(4px)}

/* CMS NEWS */
.news-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:30px;align-items:start}
.news-list{display:grid;gap:14px}
.news-item{
  display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px;transition:all .3s var(--ease);
}
.news-item:hover{border-color:var(--line-strong);background:rgba(6,182,212,.06)}
.news-item .thumb{width:132px;height:88px;border-radius:12px;overflow:hidden;background:#0b0b1c}
.news-item .thumb img{width:100%;height:100%;object-fit:cover}
.news-item h4{font-size:15.5px;font-weight:800;margin-bottom:6px;line-height:1.4}
.news-item p{font-size:13.5px;color:var(--txt-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta{margin-top:8px;font-size:12px;color:var(--txt-3);display:flex;gap:14px;flex-wrap:wrap}
.news-item .meta i{color:var(--cyan);margin-right:5px}
.side-box{
  background:linear-gradient(160deg,rgba(18,18,42,.95),rgba(11,11,28,.95));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:24px;
}
.side-box h3{font-size:17px;font-weight:800;margin-bottom:14px}
.side-list li{border-bottom:1px solid rgba(148,163,184,.1);padding:11px 0;font-size:14px;color:var(--txt-2)}
.side-list li:last-child{border-bottom:0}
.side-list li a:hover{color:var(--volt)}
.empty-note{font-size:14px;color:var(--txt-3);padding:18px;border:1px dashed var(--line);border-radius:var(--radius)}

/* TRUST */
.trust-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  background:rgba(255,255,255,.02);
}
.trust-cell{display:flex;gap:14px;align-items:flex-start}
.trust-cell i{font-size:20px;color:var(--volt);margin-top:2px}
.trust-cell h4{font-size:15px;font-weight:800;margin-bottom:5px}
.trust-cell p{font-size:13px;color:var(--txt-2)}

/* FAQ */
.faq-grid{display:grid;gap:14px}
.faq-item{
  background:linear-gradient(160deg,rgba(20,20,44,.85),rgba(11,11,28,.85));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;
  transition:all .3s var(--ease);
}
.faq-item:hover{border-color:rgba(163,230,53,.4)}
.faq-item h4{font-size:16px;font-weight:800;margin-bottom:9px;color:#fff}
.faq-item p{font-size:14.5px;color:var(--txt-2)}

/* FINAL CTA */
.final-cta{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);padding:52px 40px;text-align:center;
  background:linear-gradient(120deg,rgba(6,182,212,.16),rgba(163,230,53,.14)),rgba(11,11,28,.92);
}
.final-cta h2{font-size:clamp(23px,3.2vw,34px);font-weight:900;margin-bottom:14px}
.final-cta p{color:var(--txt-2);max-width:680px;margin:0 auto 26px;font-size:15.5px}
.final-cta .btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* FOOTER */
.site-footer{border-top:1px solid var(--line);background:rgba(5,5,12,.95);padding:56px 0 30px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{font-size:13.5px;color:var(--txt-3);margin-top:14px;max-width:300px}
.footer-col h4{font-size:14px;font-weight:800;margin-bottom:14px;color:#fff}
.footer-col a{display:block;font-size:13.5px;color:var(--txt-2);padding:5px 0;transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--txt-3);
}
.footer-badges{display:flex;gap:12px;flex-wrap:wrap}
.footer-badges span{border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:11.5px;font-weight:700;color:var(--txt-2)}

/* FAB */
.fab{
  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,.85);backdrop-filter:blur(10px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.9),rgba(7,7,13,.9)),linear-gradient(135deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--volt);font-size:21px;
  box-shadow:0 0 20px rgba(6,182,212,.5);
  transition:all .3s var(--ease);opacity:.78;
  animation:fabPulse 2.6s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 30px rgba(163,230,53,.7)}
.fab:active{transform:scale(.94)}
.fab .dot{position:absolute;top:8px;right:9px;width:9px;height:9px;border-radius:50%;background:var(--pink);box-shadow:0 0 8px var(--pink)}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.45)}50%{box-shadow:0 0 26px rgba(163,230,53,.7)}}

/* BOTTOM BAR */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:linear-gradient(90deg,rgba(7,7,15,.96),rgba(14,14,30,.96));
  border-top:1px solid var(--line-strong);
  padding:11px 20px;display:flex;align-items:center;justify-content:center;gap:16px;
  backdrop-filter:blur(12px);
}
.bottom-bar span{font-size:13.5px;color:var(--txt-2);font-weight:600}
.bottom-bar span b{color:var(--volt)}

@media(max-width:1024px){
  .hero-main{grid-template-columns:1fr;gap:28px}
  .problem-grid{grid-template-columns:1fr 1fr}
  .demo-wrap{grid-template-columns:1fr}
  .result-band{grid-template-columns:1fr 1fr;gap:24px}
  .path-track{grid-template-columns:1fr 1fr}
  .cat-grid{grid-template-columns:1fr 1fr}
  .news-layout{grid-template-columns:1fr}
  .trust-strip{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-cta .btn-ghost{display:none}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .problem-grid{grid-template-columns:1fr}
  .stuck-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
  .news-item .thumb{width:100%;height:150px}
  .trust-strip{grid-template-columns:1fr}
  .hero-metrics{grid-template-columns:1fr 1fr}
  .bottom-bar{flex-direction:column;gap:8px;text-align:center}
  .bottom-bar .btn-primary{width:100%}
  .fab{bottom:118px}
}
@media(max-width:520px){
  .result-band{grid-template-columns:1fr}
  .result-cell{border-left:0;padding-left:0}
  .path-track{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .logo-text{font-size:12.5px}
  .hero-actions .btn-lg{width:100%}
}

/* roulang page: article */
:root{
  --bg-1:#07070D;
  --bg-2:#0E0E1E;
  --bg-3:#11112a;
  --panel:#12122a;
  --panel-2:#0b0b1c;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --volt-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --pink:#F43F5E;
  --amber:#F59E0B;
  --txt:#FFFFFF;
  --txt-2:#C7D2E0;
  --txt-3:#94A3B8;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 40px -18px rgba(6,182,212,.45);
  --shadow-soft:0 10px 30px -16px rgba(0,0,0,.9);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(163,230,53,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-2) 45%,#07070f 100%);
  color:var(--txt);
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-soft);
  border:1px solid var(--line-strong);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.cyan{color:var(--cyan);background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35)}
.eyebrow.pink{color:var(--pink);background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.lead{color:var(--txt-2);font-size:clamp(15px,1.6vw,17px);max-width:780px}
.muted{color:var(--txt-3)}
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,15,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  display:grid;place-items:center;color:#06120a;font-weight:900;font-size:15px;
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.logo-text{font-weight:800;font-size:14px;line-height:1.25;letter-spacing:-.01em}
.logo-text small{display:block;font-weight:600;font-size:11px;color:var(--txt-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--txt-2);
  padding:9px 14px;border-radius:999px;transition:all .25s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--bg-1);background:linear-gradient(135deg,var(--volt),#d9f99d)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-ghost{
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(163,230,53,.45);color:var(--volt);transition:all .25s var(--ease);
}
.btn-ghost:hover{background:var(--volt-soft);transform:translateY(-1px)}
.btn-primary{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--volt),#22d3ee);color:#05121b;
  box-shadow:0 0 18px rgba(163,230,53,.4);transition:all .25s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.nav-toggle{display:none;margin-left:auto;font-size:20px;color:var(--txt-2);padding:8px 12px;border-radius:10px;border:1px solid var(--line)}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 20px 20px;background:rgba(7,7,15,.96)}
.mobile-menu a{display:block;padding:11px 4px;font-weight:600;color:var(--txt-2);border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-menu a.active{color:var(--volt)}
.mobile-menu.open{display:block}
/* Article layout */
.article-hero{
  position:relative;overflow:hidden;padding:56px 0 44px;
  clip-path:polygon(0 0,100% 0,100% 92%,0 100%);
}
.article-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,7,15,.78),rgba(7,7,15,.96)),url('/assets/images/0b4d2a5a559fa401.jpg');
  background-size:cover;background-position:center;
}
.article-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 80% 10%, rgba(6,182,212,.22), transparent 65%),
             radial-gradient(560px 300px at 8% 90%, rgba(163,230,53,.16), transparent 65%);
}
.article-hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--txt-3);margin-bottom:18px}
.breadcrumb a:hover{color:var(--volt)}
.breadcrumb i{font-size:10px}
.article-hero h1{
  font-size:clamp(24px,3.4vw,40px);font-weight:900;letter-spacing:-.02em;line-height:1.22;
  margin:0 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:6px}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:var(--txt-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.meta-chip i{color:var(--volt)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:38px;align-items:start;
  padding:56px 0 24px;
}
.article-body{min-width:0}
.article-content{
  background:linear-gradient(160deg,rgba(18,18,42,.72),rgba(11,11,28,.72));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 32px;box-shadow:var(--shadow-soft);
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:clamp(20px,2.3vw,26px);font-weight:800;letter-spacing:-.01em;
  margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--volt);
}
.article-content h3{font-size:19px;font-weight:800;margin:26px 0 10px;color:#fff}
.article-content p{color:var(--txt-2);margin:0 0 16px;line-height:1.72}
.article-content ul,.article-content ol{color:var(--txt-2);margin:0 0 18px;padding-left:22px}
.article-content li{margin-bottom:9px;line-height:1.68}
.article-content strong{color:#fff}
.article-content a{color:var(--volt);border-bottom:1px dashed rgba(163,230,53,.5)}
.article-content a:hover{color:#d9f99d}
.article-content img{border-radius:var(--radius-sm);margin:20px 0;border:1px solid var(--line)}
.article-content blockquote{
  margin:22px 0;padding:16px 20px;border-radius:var(--radius-sm);
  background:var(--volt-soft);border:1px solid var(--line-strong);
  color:#eafcd0;font-style:italic;
}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-content th{background:rgba(163,230,53,.08);color:#fff;font-weight:700}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:linear-gradient(160deg,rgba(18,18,42,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
}
.side-card h3{font-size:16px;font-weight:800;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--cyan)}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.side-list li a{font-size:14px;color:var(--txt-2);display:flex;gap:9px;align-items:flex-start;transition:color .2s}
.side-list li a:hover{color:var(--volt)}
.side-list li a i{margin-top:5px;font-size:11px;color:var(--volt)}
.side-note{font-size:13.5px;color:var(--txt-3);line-height:1.6}
.missing-box{
  background:linear-gradient(160deg,rgba(18,18,42,.9),rgba(11,11,28,.9));
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  padding:52px 30px;text-align:center;
}
.missing-box h2{font-size:24px;font-weight:800;margin:0 0 12px}
.missing-box p{color:var(--txt-2);margin:0 0 22px}
.related-block{padding:20px 0 70px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.related-card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
  display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.related-card img{height:170px;width:100%;object-fit:cover}
.related-card .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.related-card .rc-tag{font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.related-card h3{font-size:16.5px;font-weight:800;line-height:1.4;margin:0}
.related-card p{font-size:14px;color:var(--txt-3);margin:0;flex:1}
.related-card .rc-link{font-size:13.5px;font-weight:700;color:var(--volt);display:inline-flex;align-items:center;gap:7px}
/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:44px 40px;margin:0 0 70px;
  background:linear-gradient(120deg,rgba(163,230,53,.16),rgba(6,182,212,.16));
  border:1px solid var(--line-strong);
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);font-weight:900;margin:0 0 12px;letter-spacing:-.01em}
.cta-band p{color:var(--txt-2);max-width:660px;margin:0 0 24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-lg{padding:14px 28px;font-size:15px}
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,7,15,.4),rgba(7,7,15,.98));
  padding:58px 0 26px;margin-top:10px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--txt-3);font-size:14px;max-width:360px;line-height:1.7}
.footer-col h4{font-size:14px;font-weight:800;margin:0 0 16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:14px;color:var(--txt-3);padding:6px 0;transition:color .2s}
.footer-col a:hover{color:var(--volt)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);margin-top:40px;padding-top:22px;
  font-size:13px;color:var(--txt-3);
}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px}
.footer-badges span{
  font-size:12px;font-weight:700;color:var(--txt-2);
  border:1px solid var(--line);border-radius:999px;padding:6px 13px;background:rgba(255,255,255,.03);
}
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  background:linear-gradient(135deg,rgba(163,230,53,.95),rgba(6,182,212,.95));
  display:grid;place-items:center;color:#05121b;font-size:21px;
  box-shadow:0 0 24px rgba(6,182,212,.5);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
  opacity:.85;
}
.fab-support:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 34px rgba(163,230,53,.65)}
.fab-support:active{transform:scale(.95)}
.fab-support .fab-dot{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:999px;
  background:var(--pink);border:2px solid #0b0b1c;
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 300px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:block}
}
@media (max-width:640px){
  .article-content{padding:24px 20px}
  .article-hero{padding:40px 0 34px;clip-path:polygon(0 0,100% 0,100% 96%,0 100%)}
  .section{padding:56px 0}
  .cta-band{padding:32px 22px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .sidebar{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg-1:#07070D;
  --bg-2:#0E0E1E;
  --bg-3:#11112a;
  --panel:#12122a;
  --panel-2:#0b0b1c;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --volt-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --pink:#F43F5E;
  --amber:#F59E0B;
  --txt:#FFFFFF;
  --txt-2:#C7D2E0;
  --txt-3:#94A3B8;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 40px -18px rgba(6,182,212,.45);
  --shadow-soft:0 10px 30px -16px rgba(0,0,0,.9);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(163,230,53,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-2) 45%,#07070f 100%);
  color:var(--txt);
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-soft);
  border:1px solid var(--line-strong);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.cyan{color:var(--cyan);background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35)}
.eyebrow.pink{color:var(--pink);background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.eyebrow.amber{color:var(--amber);background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.35)}
.lead{color:var(--txt-2);font-size:clamp(15px,1.6vw,17px);max-width:820px}
.muted{color:var(--txt-3)}
h2.sec-title{font-size:clamp(23px,3vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.22;margin:0 0 12px}
h3.card-title{font-size:17.5px;font-weight:800;margin:0 0 10px}
.sec-head{max-width:820px;margin-bottom:38px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,15,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  display:grid;place-items:center;color:#06120a;font-weight:900;font-size:15px;
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.logo-text{font-weight:800;font-size:14px;line-height:1.25;letter-spacing:-.01em}
.logo-text small{display:block;font-weight:600;font-size:11px;color:var(--txt-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--txt-2);
  padding:9px 14px;border-radius:999px;transition:all .25s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--bg-1);background:linear-gradient(135deg,var(--volt),#d9f99d)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-ghost{
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(163,230,53,.45);color:var(--volt);transition:all .25s var(--ease);
}
.btn-ghost:hover{background:var(--volt-soft);transform:translateY(-1px)}
.btn-primary{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--volt),#22d3ee);color:#05121b;
  box-shadow:0 0 18px rgba(163,230,53,.4);transition:all .25s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.nav-toggle{display:none;margin-left:auto;font-size:20px;color:var(--txt-2);padding:8px 12px;border-radius:10px;border:1px solid var(--line)}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 20px 20px;background:rgba(7,7,15,.96)}
.mobile-menu a{display:block;padding:11px 4px;font-weight:600;color:var(--txt-2);border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-menu a.active{color:var(--volt)}
.mobile-menu.open{display:block}
/* HERO */
.cat-hero{position:relative;overflow:hidden;padding:66px 0 58px}
.cat-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,7,15,.74),rgba(7,7,15,.95)),url('/assets/images/b3b8ad5fc9d85220.png');
  background-size:cover;background-position:center;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(680px 320px at 80% 12%, rgba(6,182,212,.22), transparent 65%),
             radial-gradient(560px 300px at 8% 90%, rgba(163,230,53,.16), transparent 65%);
}
.cat-hero-inner{position:relative;z-index:2}
.cat-hero-grid{display:grid;grid-template-columns:1.3fr .95fr;gap:44px;align-items:end}
.cat-hero h1{font-size:clamp(27px,4.3vw,48px);font-weight:900;letter-spacing:-.02em;line-height:1.18;margin:0}
.cat-hero .lead{margin-top:20px;max-width:660px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-lg{padding:14px 28px;font-size:15px}
.hero-panel{
  background:linear-gradient(160deg,rgba(18,18,42,.96),rgba(11,11,28,.96));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-soft);
}
.hero-panel .panel-title{font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--volt);margin-bottom:14px}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.metric{
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;
  background:rgba(255,255,255,.03);
}
.metric b{display:block;font-size:22px;font-weight:900;color:var(--volt);line-height:1.2}
.metric span{font-size:12.5px;color:var(--txt-3)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:var(--txt-2);background:rgba(255,255,255,.045);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.chip i{color:var(--cyan)}
/* CARD SYSTEM */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.info-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.info-card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;margin-bottom:16px;
}
.ic.volt{background:var(--volt-soft);color:var(--volt)}
.ic.cyan{background:rgba(6,182,212,.14);color:var(--cyan)}
.ic.pink{background:rgba(244,63,94,.14);color:var(--pink)}
.ic.amber{background:rgba(245,158,11,.14);color:var(--amber)}
.info-card p{color:var(--txt-2);font-size:14.8px;margin:0}
.tick-list{margin-top:14px;display:grid;gap:9px}
.tick-list li{display:flex;gap:10px;font-size:14.3px;color:var(--txt-2)}
.tick-list li i{color:var(--volt);margin-top:4px;font-size:12px}
/* STEP FLOW */
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative}
.step{
  background:linear-gradient(160deg,rgba(18,18,42,.92),rgba(11,11,28,.92));
  border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative;
}
.step .num{
  font-size:34px;font-weight:900;line-height:1;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:12px;display:block;
}
.step h3{font-size:17px;font-weight:800;margin:0 0 8px}
.step p{color:var(--txt-2);font-size:14.5px;margin:0}
.step .bar{height:3px;border-radius:3px;background:linear-gradient(90deg,var(--volt),var(--cyan));margin-top:18px;opacity:.7}
/* FEATURE SPLIT */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-soft);position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;min-height:320px}
.split-media .tagline{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(7,7,15,.78);backdrop-filter:blur(8px);
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  padding:12px 16px;font-size:13.5px;font-weight:700;color:var(--txt-2);
}
/* TABLE */
.spec-table{width:100%;border-collapse:collapse;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.spec-table th,.spec-table td{padding:15px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid rgba(148,163,184,.10)}
.spec-table th{background:rgba(163,230,53,.08);color:var(--volt);font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.spec-table td{color:var(--txt-2)}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tr:hover td{background:rgba(255,255,255,.025)}
/* TRUST STRIP */
.trust-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(11,11,28,.6);
}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:32px 0}
.trust-item{display:flex;gap:13px;align-items:flex-start}
.trust-item i{font-size:20px;color:var(--volt);margin-top:3px}
.trust-item b{display:block;font-size:15px;font-weight:800}
.trust-item span{font-size:13.3px;color:var(--txt-3)}
/* FAQ */
.faq-list{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,rgba(18,18,42,.88),rgba(11,11,28,.88));
}
.faq-q{
  width:100%;display:flex;justify-content:space-between;gap:16px;align-items:center;
  padding:19px 22px;font-size:15.5px;font-weight:700;text-align:left;color:var(--txt);
  transition:background .25s var(--ease);
}
.faq-q:hover{background:rgba(163,230,53,.05)}
.faq-q i{color:var(--volt);transition:transform .3s var(--ease);flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a p{padding:0 22px 20px;margin:0;color:var(--txt-2);font-size:14.8px}
.faq-item.open .faq-a{max-height:420px}
/* CATEGORY MATRIX */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;
  background:linear-gradient(160deg,rgba(20,20,44,.92),rgba(11,11,28,.92));
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.cat-card .slug{font-size:11.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.cat-card h3{font-size:18px;font-weight:800;margin:10px 0 10px}
.cat-card p{color:var(--txt-2);font-size:14.5px;margin:0 0 18px}
/* CTA BAND */
.cta-band{
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(163,230,53,.14),rgba(6,182,212,.14));
  border:1px solid var(--line-strong);
  padding:44px 36px;display:grid;grid-template-columns:1.2fr auto;gap:28px;align-items:center;
  box-shadow:var(--shadow-soft);
}
.cta-band h2{font-size:clamp(21px,2.6vw,30px);font-weight:900;margin:0 0 10px;letter-spacing:-.01em}
.cta-band p{color:var(--txt-2);margin:0;font-size:15px;max-width:640px}
/* LIST SECTION (CMS) */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,rgba(18,18,42,.9),rgba(11,11,28,.9));
  display:flex;flex-direction:column;transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--txt-3);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.news-body h3{font-size:16.5px;font-weight:800;margin:0;line-height:1.4}
.news-body p{color:var(--txt-2);font-size:14.3px;margin:0;flex:1}
.news-more{font-size:13.5px;font-weight:800;color:var(--volt);display:inline-flex;gap:7px;align-items:center}
.empty-note{color:var(--txt-3);font-size:14.5px;text-align:center;padding:26px 0}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;font-size:21px;color:#05121b;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  box-shadow:0 0 22px rgba(6,182,212,.5);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),opacity .3s var(--ease);
  opacity:.82;animation:floaty 3.4s ease-in-out infinite;
}
.fab:hover{transform:scale(1.1) rotate(360deg);opacity:1;box-shadow:0 0 34px rgba(163,230,53,.65)}
.fab:active{transform:scale(.94) translateY(3px)}
.fab .dot{position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:50%;background:var(--pink);box-shadow:0 0 0 2px rgba(7,7,15,.9)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
/* FOOTER */
.site-footer{border-top:1px solid var(--line);background:rgba(7,7,15,.94);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--txt-3);font-size:14px;margin:16px 0 0;max-width:340px}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--volt);margin:0 0 14px}
.footer-col a{display:block;color:var(--txt-2);font-size:14px;padding:6px 0;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(148,163,184,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;
  font-size:13px;color:var(--txt-3);
}
.footer-badges{display:flex;gap:10px;flex-wrap:wrap}
.footer-badges span{border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12px;color:var(--txt-2)}
/* RESPONSIVE */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:30px}
  .grid-3,.news-grid,.cat-grid,.step-row{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:block}
}
@media (max-width:768px){
  .grid-3,.news-grid,.cat-grid,.step-row,.grid-2,.metric-grid{grid-template-columns:1fr}
  .section{padding:58px 0}
  .trust-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .spec-table th,.spec-table td{padding:12px 14px;font-size:13.6px}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px}
  .hero-actions .btn-primary,.hero-actions .btn-ghost,.cat-hero-actions .btn-primary,.cat-hero-actions .btn-ghost{width:100%;text-align:center;justify-content:center;display:inline-flex}
  .logo-text{font-size:12.6px}
}

/* roulang page: category2 */
:root{
  --bg-1:#07070D;
  --bg-2:#0E0E1E;
  --bg-3:#11112a;
  --panel:#12122a;
  --panel-2:#0b0b1c;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --volt-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --pink:#F43F5E;
  --amber:#F59E0B;
  --txt:#FFFFFF;
  --txt-2:#C7D2E0;
  --txt-3:#94A3B8;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 40px -18px rgba(6,182,212,.45);
  --shadow-soft:0 10px 30px -16px rgba(0,0,0,.9);
  --ease:cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(163,230,53,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-2) 45%,#07070f 100%);
  color:var(--txt);
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--volt);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-soft);
  border:1px solid var(--line-strong);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.cyan{color:var(--cyan);background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35)}
.eyebrow.pink{color:var(--pink);background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.lead{color:var(--txt-2);font-size:clamp(15px,1.6vw,17px);max-width:820px}
.muted{color:var(--txt-3)}
h2.sec-title{font-size:clamp(23px,3vw,34px);font-weight:900;letter-spacing:-.02em;line-height:1.22}
.sec-sub{color:var(--txt-2);margin-top:14px;max-width:760px}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,15,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  display:grid;place-items:center;color:#06120a;font-weight:900;font-size:15px;
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.logo-text{font-weight:800;font-size:14px;line-height:1.25;letter-spacing:-.01em}
.logo-text small{display:block;font-weight:600;font-size:11px;color:var(--txt-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--txt-2);
  padding:9px 14px;border-radius:999px;transition:all .25s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--bg-1);background:linear-gradient(135deg,var(--volt),#d9f99d)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-ghost{
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(163,230,53,.45);color:var(--volt);transition:all .25s var(--ease);
}
.btn-ghost:hover{background:var(--volt-soft);transform:translateY(-1px)}
.btn-primary{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--volt),#22d3ee);color:#05121b;
  box-shadow:0 0 18px rgba(163,230,53,.4);transition:all .25s var(--ease);
  display:inline-flex;align-items:center;gap:8px;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.nav-toggle{display:none;margin-left:auto;font-size:20px;color:var(--txt-2);padding:8px 12px;border-radius:10px;border:1px solid var(--line)}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 20px 20px;background:rgba(7,7,15,.96)}
.mobile-menu a{display:block;padding:11px 4px;font-weight:600;color:var(--txt-2);border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-menu a.active{color:var(--volt)}
.mobile-menu.open{display:block}
/* HERO */
.hero{position:relative;overflow:hidden;padding:60px 0 60px}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,7,15,.76),rgba(7,7,15,.95)),url('/assets/images/0b4d2a5a559fa401.jpg');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 80% 14%, rgba(6,182,212,.24), transparent 65%),
             radial-gradient(620px 300px at 8% 86%, rgba(163,230,53,.18), transparent 65%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(27px,4vw,46px);font-weight:900;letter-spacing:-.02em;line-height:1.16}
.hero-lead{margin-top:20px;color:var(--txt-2);font-size:16.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-lg{padding:14px 28px;font-size:15px}
.kpi-row{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px}
.kpi{min-width:110px}
.kpi b{display:block;font-size:26px;font-weight:900;color:var(--volt);letter-spacing:-.02em}
.kpi span{font-size:12.5px;color:var(--txt-3);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.hero-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  transform:translateY(-6px) rotate(-1.2deg);
}
.hero-media img{width:100%;height:100%;object-fit:cover;min-height:320px}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(7,7,15,.72));
}
.media-tag{
  position:absolute;left:18px;bottom:18px;z-index:3;
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(7,7,15,.85);border:1px solid var(--line-strong);
  padding:9px 15px;border-radius:999px;font-size:13px;font-weight:700;color:var(--volt);
}
/* GENERIC PANEL / CARD */
.panel{
  background:linear-gradient(160deg,rgba(18,18,42,.95),rgba(11,11,28,.95));
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;
}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--volt-soft);color:var(--volt);font-size:19px;margin-bottom:16px;
}
.card.cy .ic{background:rgba(6,182,212,.14);color:var(--cyan)}
.card.pk .ic{background:rgba(244,63,94,.14);color:var(--pink)}
.card h3{font-size:17.5px;font-weight:800;margin:0 0 10px}
.card p{color:var(--txt-2);margin:0;font-size:14.6px}
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:var(--txt-2);background:rgba(255,255,255,.045);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.chip i{color:var(--cyan)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
/* STEPS */
.step-list{display:grid;gap:16px;counter-reset:step}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.step-num{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  font-weight:900;font-size:19px;color:#05121b;
  background:linear-gradient(135deg,var(--volt),var(--cyan));counter-increment:step;
}
.step h3{margin:0 0 7px;font-size:16.5px;font-weight:800}
.step p{margin:0;color:var(--txt-2);font-size:14.5px}
/* COMPARE */
.cmp{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line)}
.cmp th,.cmp td{padding:16px 18px;text-align:left;font-size:14.6px;border-bottom:1px solid var(--line)}
.cmp thead th{background:rgba(163,230,53,.10);font-weight:800;color:var(--volt);font-size:13.5px;text-transform:uppercase;letter-spacing:.06em}
.cmp tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.cmp td:last-child{color:var(--volt);font-weight:700}
/* LIST OF NEWS */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  display:flex;flex-direction:column;transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--txt-3);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.news-body h3{margin:0;font-size:16.5px;font-weight:800;line-height:1.4}
.news-body p{margin:0;color:var(--txt-2);font-size:14.4px}
.news-more{margin-top:auto;color:var(--volt);font-weight:700;font-size:14px}
/* FAQ */
.faq{display:grid;gap:14px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.02);overflow:hidden}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:800;font-size:16px;
  display:flex;justify-content:space-between;gap:16px;align-items:center;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--volt);transition:transform .3s var(--ease)}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 22px 20px;color:var(--txt-2);font-size:14.8px}
/* CTA BAND */
.cta-band{
  border-radius:var(--radius-lg);padding:40px;
  background:linear-gradient(135deg,rgba(163,230,53,.16),rgba(6,182,212,.16));
  border:1px solid var(--line-strong);
  display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.6vw,30px);font-weight:900;margin:0 0 12px}
.cta-band p{margin:0;color:var(--txt-2)}
/* FOOTER */
.site-footer{border-top:1px solid var(--line);background:rgba(6,6,14,.92);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--txt-3);font-size:14px;margin-top:14px;max-width:340px}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--volt);margin:0 0 14px;font-weight:800}
.footer-col a{display:block;color:var(--txt-2);font-size:14px;padding:6px 0;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--volt)}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:36px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--txt-3);
}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px}
.footer-badges span{
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12px;color:var(--txt-2);
}
/* FAB */
.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  width:58px;height:58px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.8);backdrop-filter:blur(10px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(135deg,var(--volt),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:var(--volt);font-size:20px;opacity:.8;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.fab:hover{opacity:1;transform:scale(1.1) rotate(12deg)}
.fab:active{transform:scale(.94)}
.fab .dot{position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:999px;background:var(--pink);border:2px solid var(--bg-1)}
/* RESPONSIVE */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-media{transform:none}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .grid-3,.grid-2,.news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cmp th,.cmp td{padding:12px 12px;font-size:13.6px}
  .nav-cta .btn-ghost{display:none}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:12.5px}
  .step{grid-template-columns:44px 1fr;gap:14px;padding:16px}
  .step-num{width:44px;height:44px;font-size:16px}
  .cta-band{padding:26px}
  .panel{padding:22px}
}

/* roulang page: category3 */
:root{
  --bg-1:#07070D;
  --bg-2:#0E0E1E;
  --bg-3:#11112a;
  --panel:#12122a;
  --panel-2:#0b0b1c;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --volt-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --pink:#F43F5E;
  --amber:#F59E0B;
  --txt:#FFFFFF;
  --txt-2:#C7D2E0;
  --txt-3:#94A3B8;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 40px -18px rgba(6,182,212,.45);
  --shadow-soft:0 10px 30px -16px rgba(0,0,0,.9);
  --ease:cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(163,230,53,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-2) 45%,#07070f 100%);
  color:var(--txt);
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-soft);
  border:1px solid var(--line-strong);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.cyan{color:var(--cyan);background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35)}
.eyebrow.pink{color:var(--pink);background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35)}
.lead{color:var(--txt-2);font-size:clamp(15px,1.6vw,17px);max-width:820px}
.muted{color:var(--txt-3)}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(16px);
  background:rgba(7,7,15,.82);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));
  display:grid;place-items:center;color:#06120a;font-weight:900;font-size:15px;
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.logo-text{font-weight:800;font-size:14px;line-height:1.25;letter-spacing:-.01em}
.logo-text small{display:block;font-weight:600;font-size:11px;color:var(--txt-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--txt-2);
  padding:9px 14px;border-radius:999px;transition:all .25s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--bg-1);background:linear-gradient(135deg,var(--volt),#d9f99d)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-ghost{
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(163,230,53,.45);color:var(--volt);transition:all .25s var(--ease);
}
.btn-ghost:hover{background:var(--volt-soft);transform:translateY(-1px)}
.btn-primary{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--volt),#22d3ee);color:#05121b;
  box-shadow:0 0 18px rgba(163,230,53,.4);transition:all .25s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(163,230,53,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.nav-toggle{display:none;margin-left:auto;font-size:20px;color:var(--txt-2);padding:8px 12px;border-radius:10px;border:1px solid var(--line)}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 20px 20px;background:rgba(7,7,15,.96)}
.mobile-menu a{display:block;padding:11px 4px;font-weight:600;color:var(--txt-2);border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-menu a.active{color:var(--volt)}
.mobile-menu.open{display:block}
/* HERO CATEGORY */
.cat-hero{position:relative;overflow:hidden;padding:60px 0 50px}
.cat-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,7,15,.76),rgba(7,7,15,.95)),url('/assets/images/0b4d2a5a559fa401.jpg');
  background-size:cover;background-position:center;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 80% 10%, rgba(244,63,94,.20), transparent 65%),
             radial-gradient(600px 300px at 8% 90%, rgba(6,182,212,.16), transparent 65%);
}
.cat-hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--txt-3);margin-bottom:18px}
.breadcrumb a{color:var(--txt-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--volt)}
.cat-hero-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:end}
.cat-hero h1{font-size:clamp(27px,4.4vw,48px);font-weight:900;letter-spacing:-.02em;line-height:1.16}
.cat-hero .lead{margin-top:20px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-lg{padding:14px 28px;font-size:15px}
.hero-panel{
  background:linear-gradient(160deg,rgba(18,18,42,.96),rgba(11,11,28,.96));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-soft);
}
.hero-panel h3{font-size:15px;font-weight:800;margin-bottom:6px}
.panel-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:12px}
.panel-list li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--txt-2)}
.panel-list i{color:var(--volt);margin-top:3px}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.metric{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px;
}
.metric strong{display:block;font-size:22px;font-weight:900;color:var(--volt);line-height:1.1}
.metric span{font-size:12px;color:var(--txt-3);font-weight:600}
/* CHIPS */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:var(--txt-2);background:rgba(255,255,255,.045);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.chip i{color:var(--cyan)}
/* SECTION HEAD */
.section-head{max-width:760px}
.section-head h2{font-size:clamp(23px,3.1vw,34px);font-weight:900;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--txt-2)}
/* GRIDS */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
/* CARD */
.card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(163,230,53,.4);box-shadow:0 18px 34px -20px rgba(163,230,53,.5)}
.card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(6,182,212,.14);color:var(--cyan);font-size:19px;margin-bottom:16px;
}
.card .ic.volt{background:var(--volt-soft);color:var(--volt)}
.card .ic.pink{background:rgba(244,63,94,.14);color:var(--pink)}
.card .ic.amber{background:rgba(245,158,11,.15);color:var(--amber)}
.card h3{font-size:17px;font-weight:800;margin-bottom:10px}
.card p{color:var(--txt-2);font-size:14.5px}
.card ul{margin:12px 0 0;padding-left:18px;color:var(--txt-2);font-size:14.5px}
.card ul li{margin-bottom:7px}
/* PROBLEM LIST */
.fix-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.fix-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:16px 18px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.fix-list li:hover{border-color:rgba(163,230,53,.4);background:rgba(255,255,255,.05)}
.fix-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--volt),var(--cyan));color:#06120a;
  font-weight:900;font-size:14px;display:grid;place-items:center;
}
.fix-list h4{font-size:15px;font-weight:800;margin-bottom:4px}
.fix-list p{font-size:14px;color:var(--txt-2)}
/* COMPARE */
.compare-table{
  width:100%;border-collapse:collapse;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;font-size:14.5px;
}
.compare-table th,.compare-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table thead th{background:rgba(163,230,53,.08);color:var(--volt);font-weight:800;font-size:13px;text-transform:uppercase;letter-spacing:.06em}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table td.bad{color:var(--pink)}
.compare-table td.good{color:var(--volt);font-weight:700}
/* FAQ */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(20,20,44,.85),rgba(11,11,28,.85));
  margin-bottom:14px;overflow:hidden;
}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:18px 22px;font-size:15.5px;font-weight:800;text-align:left;color:var(--txt);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--volt)}
.faq-q i{color:var(--volt);transition:transform .3s var(--ease);flex:0 0 auto}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a p{padding:0 22px 20px;color:var(--txt-2);font-size:14.5px}
.faq-item.open .faq-a{max-height:340px}
.faq-item.open .faq-q i{transform:rotate(45deg)}
/* STEPS */
.steps{display:grid;gap:14px;counter-reset:step}
.step{
  display:flex;gap:16px;align-items:flex-start;
  border-left:2px solid rgba(163,230,53,.4);padding:4px 0 4px 20px;
}
.step strong{display:block;font-size:15.5px;font-weight:800;margin-bottom:5px}
.step p{font-size:14.5px;color:var(--txt-2)}
/* NEWS */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  background:linear-gradient(160deg,rgba(20,20,44,.9),rgba(11,11,28,.9));
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(6,182,212,.45)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--txt-3);font-weight:600}
.news-meta .tag{color:var(--cyan);background:rgba(6,182,212,.12);border:1px solid rgba(6,182,212,.3);padding:3px 10px;border-radius:999px}
.news-body h3{font-size:16px;font-weight:800}
.news-body h3 a{transition:color .2s var(--ease)}
.news-body h3 a:hover{color:var(--volt)}
.news-body p{font-size:14px;color:var(--txt-2);flex:1}
.news-more{font-size:13.5px;font-weight:800;color:var(--volt)}
/* CTA */
.cta-band{
  background:linear-gradient(135deg,rgba(163,230,53,.14),rgba(6,182,212,.14));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:38px;display:grid;grid-template-columns:1.5fr auto;gap:26px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.6vw,29px);font-weight:900}
.cta-band p{margin-top:12px;color:var(--txt-2);font-size:15px;max-width:680px}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,15,.8);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,15,.9),rgba(7,7,15,.9)),linear-gradient(135deg,var(--volt),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--volt);font-size:20px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.8;transition:all .3s var(--ease);
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 28px rgba(163,230,53,.6)}
.fab:active{transform:scale(.95)}
.fab .dot{
  position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:999px;
  background:var(--pink);border:2px solid #07070D;
}
/* FOOTER */
.site-footer{
  border-top:1px solid var(--line);margin-top:40px;
  background:linear-gradient(180deg,rgba(11,11,28,.6),rgba(7,7,13,.95));
  padding:56px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--txt-2);line-height:1.7}
.footer-col h4{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--volt);margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:var(--txt-2);padding:5px 0;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:center;
  font-size:13px;color:var(--txt-3);
}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px}
.footer-badges span{border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-weight:600}
/* RESPONSIVE */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:30px}
  .grid-3,.news-grid{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:block}
  .section{padding:56px 0}
  .grid-3,.grid-2,.grid-4,.news-grid{grid-template-columns:1fr}
  .compare-table th,.compare-table td{padding:12px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .card{padding:20px}
  .cta-band{padding:26px}
  .footer-grid{grid-template-columns:1fr}
}