/* roulang page: index */
:root{
  --bg-0:#050B18;
  --bg-1:#0A1428;
  --bg-2:#101B33;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.4);
  --txt:#E8EFFA;
  --txt-soft:#94A3B8;
  --txt-dim:#64748B;
  --volt:#38BDF8;
  --plasma:#2563EB;
  --lime:#A3E635;
  --gold:#FBBF24;
  --rose:#F43F5E;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -22px rgba(2,8,20,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',Inter,system-ui,sans-serif;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 480px at 92% 8%, rgba(56,189,248,.18), transparent 62%),
    var(--bg-0);
  color:var(--txt);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,40,.7),rgba(5,11,24,.2))}
.section-alt2{background:linear-gradient(180deg,rgba(16,27,51,.75),rgba(5,11,24,.35))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin:18px 0 14px;max-width:760px}
.section-desc{color:var(--txt-soft);max-width:760px;font-size:15.5px}
.grid{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.glass{
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(8,16,32,.72));
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 46px -24px rgba(37,99,235,.75),var(--shadow-glow)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#03121F;
  box-shadow:0 0 22px rgba(56,189,248,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.7)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--txt);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.btn-lime{
  background:linear-gradient(120deg,#A3E635,#22D3EE);
  color:#04121B;box-shadow:0 0 22px rgba(163,230,53,.35);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(163,230,53,.6)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);color:var(--volt);border:1px solid var(--line-strong);
}
.tag-gold{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.35)}
.tag-lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag-rose{background:rgba(244,63,94,.12);color:var(--rose);border-color:rgba(244,63,94,.35)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#38BDF8 55%,#A3E635);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.brand-text span{font-size:11px;color:var(--txt-dim);letter-spacing:.06em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  font-size:14px;font-weight:600;color:var(--txt-soft);
  padding:9px 14px;border-radius:999px;transition:.22s;
}
.nav-menu a:hover{color:var(--txt);background:rgba(56,189,248,.1)}
.nav-menu a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{
  font-size:13.5px;font-weight:700;color:var(--volt);
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;
  background:transparent;transition:.22s;
}
.nav-login:hover{background:rgba(56,189,248,.12)}
.nav-signup{
  font-size:13.5px;font-weight:800;color:#04121B;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  border-radius:999px;padding:10px 18px;border:none;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:.22s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
  color:var(--volt);font-size:17px;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,24,.98)}
.mobile-panel.open{display:block}
.mobile-panel .inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px}
.mobile-panel a{padding:11px 14px;border-radius:12px;font-weight:600;color:var(--txt-soft)}
.mobile-panel a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.mobile-panel a:hover{background:rgba(56,189,248,.1);color:var(--txt)}
/* HERO */
.hero{
  position:relative;overflow:hidden;
  padding:66px 0 58px;
  background:linear-gradient(120deg,rgba(5,11,24,.94),rgba(10,20,40,.86)),
    url('/assets/images/d50ed68349ce5a05.jpg') center/cover no-repeat;
}
.hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(700px 340px at 78% 20%,rgba(56,189,248,.22),transparent 66%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .85fr;gap:34px;align-items:center}
.hero h1{font-size:clamp(27px,4vw,46px);font-weight:900;margin:16px 0 16px;line-height:1.18}
.hero h1 .hl{background:linear-gradient(100deg,#38BDF8,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#C7D7EC;font-size:15.6px;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:32px;max-width:600px}
.hero-stats .st{padding:14px;border-radius:var(--radius-s);background:rgba(16,27,51,.7);border:1px solid var(--line)}
.hero-stats .st b{display:block;font-size:19px;font-weight:800;color:var(--volt)}
.hero-stats .st span{font-size:11.6px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.08em}
.hero-visual{
  position:relative;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 60px -30px rgba(2,8,20,.95),var(--shadow-glow);
}
.hero-visual img{height:100%;width:100%;object-fit:cover;min-height:300px}
.hero-badge-float{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(5,11,24,.86);border:1px solid var(--line-strong);
  border-radius:var(--radius-s);padding:12px 14px;backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-badge-float b{font-size:13.5px;display:block}
.hero-badge-float span{font-size:11.6px;color:var(--txt-dim)}
.countdown{display:flex;gap:8px}
.countdown .cd{
  min-width:52px;text-align:center;padding:8px 6px;border-radius:10px;
  background:linear-gradient(160deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border:1px solid var(--line-strong);
}
.countdown .cd b{display:block;font-size:17px;font-weight:800;color:#fff}
.countdown .cd span{font-size:10px;color:var(--txt-dim);text-transform:uppercase}
/* TICKER */
.ticker{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(10,20,40,.6);
  overflow:hidden;white-space:nowrap;
}
.ticker-track{display:inline-flex;gap:44px;padding:12px 0;animation:tickerMove 34s linear infinite}
.ticker-track span{font-size:13px;color:var(--txt-soft);display:inline-flex;align-items:center;gap:8px}
.ticker-track span i{color:var(--lime)}
@keyframes tickerMove{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
/* CARDS */
.card-body{padding:22px}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  color:var(--volt);font-size:18px;margin-bottom:14px;border:1px solid var(--line-strong);
}
.card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.card p{font-size:14.4px;color:var(--txt-soft)}
.card-media{position:relative;border-radius:var(--radius-m) var(--radius-m) 0 0;overflow:hidden}
.card-media img{height:190px;width:100%;object-fit:cover;transition:transform .5s ease}
.glass:hover .card-media img{transform:scale(1.06)}
.card-media .tag{position:absolute;top:12px;left:12px}
/* LIST */
.feature-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.6px;color:var(--txt-soft)}
.feature-list li i{color:var(--lime);margin-top:4px;font-size:13.5px}
/* METRICS */
.metric{padding:24px 20px;border-radius:var(--radius-m);background:rgba(16,27,51,.66);border:1px solid var(--line);text-align:left}
.metric b{display:block;font-size:30px;font-weight:900;background:linear-gradient(100deg,#38BDF8,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{font-size:12.6px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.08em}
/* STEPS */
.steps{display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.step{padding:22px;border-radius:var(--radius-m);border:1px solid var(--line);background:rgba(10,20,40,.6);position:relative}
.step b{position:absolute;top:-14px;left:20px;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121B;font-weight:900;font-size:14px;box-shadow:0 0 16px rgba(56,189,248,.5)}
.step h3{margin:16px 0 8px;font-size:16px;font-weight:800}
.step p{font-size:14px;color:var(--txt-soft)}
/* TABLE / PLAN */
.plan{padding:26px 22px;border-radius:var(--radius-m);border:1px solid var(--line);background:rgba(10,20,40,.62);display:flex;flex-direction:column;gap:14px}
.plan.featured{border-color:var(--line-strong);background:linear-gradient(170deg,rgba(37,99,235,.22),rgba(8,16,32,.8));box-shadow:var(--shadow-glow)}
.plan h3{font-size:17px;font-weight:800}
.plan .price{font-size:28px;font-weight:900;color:var(--volt)}
.plan ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.plan ul li{font-size:14px;color:var(--txt-soft);display:flex;gap:10px}
.plan ul li i{color:var(--lime);margin-top:4px}
/* NEWS */
.news-item{display:flex;gap:16px;padding:16px;border-radius:var(--radius-m);border:1px solid var(--line);background:rgba(10,20,40,.55);transition:.25s}
.news-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.news-item img{width:104px;height:78px;object-fit:cover;border-radius:12px;flex:none}
.news-item h3{font-size:15.4px;font-weight:700;margin-bottom:6px}
.news-item p{font-size:13.4px;color:var(--txt-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{font-size:12px;color:var(--txt-dim);margin-top:8px;display:flex;gap:12px;flex-wrap:wrap}
.rec-item{display:block;padding:14px;border-radius:12px;border:1px solid var(--line);background:rgba(10,20,40,.55);transition:.25s}
.rec-item:hover{border-color:var(--line-strong);background:rgba(37,99,235,.14)}
.rec-item b{font-size:14.4px;font-weight:700;display:block;margin-bottom:6px}
.rec-item span{font-size:12.2px;color:var(--txt-dim)}
/* REVIEWS */
.review{padding:22px;border-radius:var(--radius-m);border:1px solid var(--line);background:rgba(10,20,40,.6)}
.review .who{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#04121B;
  background:linear-gradient(135deg,#38BDF8,#A3E635)}
.stars{color:var(--gold);font-size:13px;margin-bottom:8px}
/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-m);background:rgba(10,20,40,.55);overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 20px;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--volt);transition:.25s}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item p{padding:0 20px 20px;color:var(--txt-soft);font-size:14.4px}
/* CTA */
.cta-band{
  border-radius:var(--radius-l);padding:44px 32px;
  background:linear-gradient(120deg,rgba(37,99,235,.34),rgba(56,189,248,.16)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-glow);
  text-align:center;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:900;margin-bottom:12px}
.cta-band p{color:#C7D7EC;max-width:640px;margin:0 auto 24px}
/* FORM */
.form-card{padding:28px;border-radius:var(--radius-m);border:1px solid var(--line-strong);background:rgba(8,16,32,.85);backdrop-filter:blur(12px)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.6px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--txt-dim);margin-bottom:7px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(5,11,24,.85);color:var(--txt);font-size:14.5px;transition:.2s;
}
.field input:focus,.field select:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{font-size:12.4px;color:var(--txt-dim);margin-top:10px}
/* PAYMENT BADGES */
.pay-row{display:flex;flex-wrap:wrap;gap:10px}
.pay-badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;
  border:1px solid var(--line);background:rgba(16,27,51,.7);font-size:13.2px;font-weight:600;color:var(--txt-soft);
}
.pay-badge i{color:var(--volt)}
/* TRUST BAR */
.trust-bar{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
.trust-item{display:flex;align-items:center;gap:10px;font-size:13.4px;color:var(--txt-soft)}
.trust-item i{color:var(--lime);font-size:16px}
/* FOOTER */
.site-footer{background:linear-gradient(180deg,rgba(5,11,24,.5),rgba(5,11,24,.96));border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:28px}
.site-footer h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.09em;color:var(--txt);margin-bottom:14px}
.site-footer p,.site-footer li{font-size:13.6px;color:var(--txt-soft)}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer ul a:hover{color:var(--volt)}
.footer-bottom{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.6px;color:var(--txt-dim)}
.badge-18{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;border:1px solid rgba(244,63,94,.5);color:var(--rose);
  font-weight:800;font-size:12.5px;background:rgba(244,63,94,.1);
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:70;
  width:56px;height:56px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--lime);font-size:20px;box-shadow:0 0 22px rgba(6,182,212,.45);
  opacity:.82;transition:.25s;
}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.06);box-shadow:0 0 34px rgba(6,182,212,.7)}
.fab:active{transform:scale(.95) translateY(1px)}
.fab .dot{position:absolute;top:-4px;right:-4px;width:13px;height:13px;border-radius:50%;background:#F43F5E;box-shadow:0 0 0 2px #050B18;animation:pulseDot 1.5s infinite}
@keyframes pulseDot{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.65}}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .grid.g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid.g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-menu{display:none}
  .burger{display:flex;align-items:center;justify-content:center}
}
@media (max-width:768px){
  .nav-actions .nav-login{display:none}
  .brand-text b{max-width:150px;font-size:12.8px}
  .section{padding:56px 0}
  .grid.g-2,.grid.g-3,.grid.g-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr}
  .cta-band{padding:32px 20px}
}
@media (max-width:520px){
  .nav-signup{padding:9px 13px;font-size:12.6px}
  .hero h1{font-size:24px}
  .news-item{flex-direction:column}
  .news-item img{width:100%;height:150px}
  .fab{bottom:88px;width:52px;height:52px}
}

/* roulang page: article */
:root{
  --bg-0:#050B18;
  --bg-1:#0A1428;
  --bg-2:#101B33;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.4);
  --txt:#E8EFFA;
  --txt-soft:#94A3B8;
  --txt-dim:#64748B;
  --volt:#38BDF8;
  --plasma:#2563EB;
  --lime:#A3E635;
  --gold:#FBBF24;
  --rose:#F43F5E;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -22px rgba(2,8,20,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',Inter,system-ui,sans-serif;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 480px at 92% 8%, rgba(56,189,248,.18), transparent 62%),
    var(--bg-0);
  color:var(--txt);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,40,.7),rgba(5,11,24,.2))}
.section-alt2{background:linear-gradient(180deg,rgba(16,27,51,.75),rgba(5,11,24,.35))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin:18px 0 14px;max-width:820px}
.section-desc{color:var(--txt-soft);max-width:820px;font-size:15.5px}
.grid{display:grid;gap:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#03121F;
  box-shadow:0 0 22px rgba(56,189,248,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.7)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--txt);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.btn-lime{
  background:linear-gradient(120deg,#A3E635,#22D3EE);
  color:#04121B;box-shadow:0 0 22px rgba(163,230,53,.35);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(163,230,53,.6)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);color:var(--volt);border:1px solid var(--line-strong);
}
.tag-gold{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.35)}
.tag-lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag-rose{background:rgba(244,63,94,.12);color:var(--rose);border-color:rgba(244,63,94,.35)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#38BDF8 55%,#A3E635);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.brand-text span{font-size:11px;color:var(--txt-dim);letter-spacing:.06em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  font-size:14px;font-weight:600;color:var(--txt-soft);
  padding:9px 14px;border-radius:999px;transition:.22s;
}
.nav-menu a:hover{color:var(--txt);background:rgba(56,189,248,.1)}
.nav-menu a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{
  font-size:13.5px;font-weight:700;color:var(--volt);
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;
  background:transparent;transition:.22s;
}
.nav-login:hover{background:rgba(56,189,248,.12)}
.nav-signup{
  font-size:13.5px;font-weight:800;color:#04121B;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  border-radius:999px;padding:10px 18px;border:none;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:.22s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
  color:var(--txt);align-items:center;justify-content:center;font-size:18px;cursor:pointer;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,24,.98)}
.mobile-panel.open{display:block}
.mobile-panel .inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px}
.mobile-panel a{padding:11px 14px;border-radius:12px;font-weight:600;color:var(--txt-soft)}
.mobile-panel a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.mobile-panel a:hover{background:rgba(56,189,248,.1);color:var(--txt)}
/* ARTICLE HERO */
.article-hero{
  position:relative;overflow:hidden;padding:52px 0 44px;
  background:linear-gradient(120deg,rgba(5,11,24,.94),rgba(10,20,40,.86)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(720px 340px at 80% 18%,rgba(56,189,248,.2),transparent 66%);
  pointer-events:none;
}
.article-hero .inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--txt-dim);margin-bottom:16px}
.breadcrumb a{color:var(--txt-soft)}
.breadcrumb a:hover{color:var(--volt)}
.article-hero h1{font-size:clamp(25px,3.6vw,42px);font-weight:900;margin:14px 0 16px;line-height:1.2}
.article-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:20px;font-size:13.5px;color:var(--txt-soft)}
.article-meta .m-item{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--volt)}
/* ARTICLE LAYOUT */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;padding:60px 0 72px}
.article-body{max-width:760px}
.article-body h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--volt)}
.article-body h3{font-size:clamp(18px,2vw,22px);font-weight:700;margin:28px 0 12px;color:#D5E6FA}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body p{color:#C3D3E8;font-size:15.6px;line-height:1.72;margin:0 0 16px}
.article-body ul,.article-body ol{color:#C3D3E8;font-size:15.6px;line-height:1.72;padding-left:22px;margin:0 0 18px}
.article-body li{margin-bottom:9px}
.article-body strong{color:#EAF3FF}
.article-body a{color:var(--volt);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--lime)}
.article-body img{border-radius:var(--radius-m);margin:20px 0;border:1px solid var(--line)}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;border-left:3px solid var(--lime);
  background:rgba(163,230,53,.06);border-radius:var(--radius-s);color:#D8E9FA;font-size:15.4px;
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.article-body th{background:rgba(56,189,248,.1);color:#EAF3FF;font-weight:700}
/* EMPTY STATE */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-l);
  padding:38px 28px;background:rgba(16,27,51,.5);
}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:12px}
.empty-state p{color:var(--txt-soft);margin-bottom:18px}
/* SIDEBAR */
.side-card{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:linear-gradient(180deg,rgba(16,27,51,.9),rgba(10,20,40,.75));
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card + .side-card{margin-top:20px}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--volt)}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.side-list li a{display:flex;gap:10px;font-size:14px;color:var(--txt-soft);transition:.2s}
.side-list li a:hover{color:var(--volt)}
.side-list li i{color:var(--lime);font-size:12px;margin-top:6px}
.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fact-item{
  border:1px solid var(--line);border-radius:var(--radius-s);
  padding:12px;background:rgba(56,189,248,.05);
}
.fact-item b{display:block;font-size:17px;font-weight:800;color:var(--lime)}
.fact-item span{font-size:11.5px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.06em}
.side-cta{
  border-radius:var(--radius-m);padding:24px;text-align:center;
  background:linear-gradient(150deg,rgba(37,99,235,.35),rgba(56,189,248,.12));
  border:1px solid var(--line-strong);
}
.side-cta h3{font-size:17px;font-weight:800;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--txt-soft);margin-bottom:16px}
/* TOC */
.toc{list-style:none;padding:0;margin:0;counter-reset:toc;display:flex;flex-direction:column;gap:8px}
.toc li{counter-increment:toc}
.toc a{display:flex;gap:9px;font-size:13.5px;color:var(--txt-soft);transition:.2s}
.toc a::before{content:counter(toc,decimal-leading-zero);color:var(--volt);font-weight:700;font-size:12px}
.toc a:hover{color:var(--txt)}
/* CTA BAND */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  padding:40px;display:grid;grid-template-columns:1.3fr .7fr;gap:26px;align-items:center;
  background:linear-gradient(120deg,rgba(37,99,235,.24),rgba(163,230,53,.08));
  box-shadow:var(--shadow-glow);
}
.cta-band h2{font-size:clamp(21px,2.6vw,30px);font-weight:800;margin-bottom:12px}
.cta-band p{color:#C3D3E8;font-size:15.4px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
/* RELATED */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  background:linear-gradient(180deg,rgba(16,27,51,.9),rgba(10,20,40,.8));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.rel-card img{height:170px;width:100%;object-fit:cover}
.rel-card .body{padding:18px}
.rel-card h3{font-size:16px;font-weight:700;margin-bottom:9px;line-height:1.4}
.rel-card p{font-size:13.8px;color:var(--txt-soft)}
/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(16,27,51,.55);overflow:hidden;
}
.faq-item summary{
  cursor:pointer;padding:17px 20px;font-weight:700;font-size:15.4px;
  display:flex;justify-content:space-between;gap:14px;align-items:center;list-style:none;
}
.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(--volt);font-size:13px;transition:.2s}
.faq-item[open] summary::after{content:'\f068'}
.faq-item .ans{padding:0 20px 18px;color:var(--txt-soft);font-size:14.6px}
/* FOOTER */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(5,11,24,.6),rgba(3,7,16,.98));
  padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.footer-grid h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px;color:#D5E6FA}
.footer-grid p{font-size:13.8px;color:var(--txt-soft)}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.footer-grid ul a{font-size:13.8px;color:var(--txt-soft);transition:.2s}
.footer-grid ul a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.8px;color:var(--txt-dim);
}
.badge-18{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;flex:none;
  background:rgba(244,63,94,.14);color:var(--rose);
  border:1px solid rgba(244,63,94,.35);font-weight:800;font-size:12px;
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  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(--lime);font-size:21px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.82;transition:.25s;cursor:pointer;
  animation:fabPulse 2.6s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.94) translateY(2px)}
.fab .dot{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:999px;
  background:#F43F5E;border:2px solid #050B18;
  animation:dotBlink 1.4s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}50%{box-shadow:0 0 30px rgba(163,230,53,.6)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}
/* RESPONSIVE */
@media(max-width:1024px){
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-body{max-width:100%}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
}
@media(max-width:768px){
  .nav-actions .nav-login{display:none}
  .section{padding:56px 0}
  .article-hero{padding:40px 0 34px}
  .article-layout{padding:44px 0 56px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .cta-band{padding:26px}
  .fact-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .brand-text b{max-width:150px;font-size:13px}
  .brand-text span{font-size:10px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .article-body p,.article-body ul,.article-body ol{font-size:15px}
  .fab{width:54px;height:54px;bottom:88px}
}

/* roulang page: category1 */
:root{
  --bg-0:#050B18;
  --bg-1:#0A1428;
  --bg-2:#101B33;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.4);
  --txt:#E8EFFA;
  --txt-soft:#94A3B8;
  --txt-dim:#64748B;
  --volt:#38BDF8;
  --plasma:#2563EB;
  --lime:#A3E635;
  --gold:#FBBF24;
  --rose:#F43F5E;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -22px rgba(2,8,20,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',Inter,system-ui,sans-serif;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 480px at 92% 8%, rgba(56,189,248,.18), transparent 62%),
    var(--bg-0);
  color:var(--txt);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,40,.7),rgba(5,11,24,.2))}
.section-alt2{background:linear-gradient(180deg,rgba(16,27,51,.75),rgba(5,11,24,.35))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin:18px 0 14px;max-width:820px}
.section-desc{color:var(--txt-soft);max-width:820px;font-size:15.5px}
.grid{display:grid;gap:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#03121F;
  box-shadow:0 0 22px rgba(56,189,248,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.7)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--txt);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.btn-lime{
  background:linear-gradient(120deg,#A3E635,#22D3EE);
  color:#04121B;box-shadow:0 0 22px rgba(163,230,53,.35);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(163,230,53,.6)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);color:var(--volt);border:1px solid var(--line-strong);
}
.tag-gold{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.35)}
.tag-lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag-rose{background:rgba(244,63,94,.12);color:var(--rose);border-color:rgba(244,63,94,.35)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#38BDF8 55%,#A3E635);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.brand-text span{font-size:11px;color:var(--txt-dim);letter-spacing:.06em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  font-size:14px;font-weight:600;color:var(--txt-soft);
  padding:9px 14px;border-radius:999px;transition:.22s;
}
.nav-menu a:hover{color:var(--txt);background:rgba(56,189,248,.1)}
.nav-menu a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{
  font-size:13.5px;font-weight:700;color:var(--volt);
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;
  background:transparent;transition:.22s;
}
.nav-login:hover{background:rgba(56,189,248,.12)}
.nav-signup{
  font-size:13.5px;font-weight:800;color:#04121B;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  border-radius:999px;padding:10px 18px;border:none;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:.22s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.mobile-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
  color:var(--txt);font-size:18px;align-items:center;justify-content:center;cursor:pointer;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,24,.98)}
.mobile-panel.open{display:block}
.mobile-panel .inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px}
.mobile-panel a{padding:11px 14px;border-radius:12px;font-weight:600;color:var(--txt-soft)}
.mobile-panel a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.mobile-panel a:hover{background:rgba(56,189,248,.1);color:var(--txt)}
/* HERO */
.hero{
  position:relative;overflow:hidden;
  padding:70px 0 60px;
  background:linear-gradient(120deg,rgba(5,11,24,.95),rgba(10,20,40,.88)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
}
.hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(700px 340px at 80% 18%,rgba(56,189,248,.22),transparent 66%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.hero h1{font-size:clamp(26px,3.9vw,44px);font-weight:900;margin:16px 0 16px;line-height:1.18}
.hero h1 .hl{background:linear-gradient(100deg,#38BDF8,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#C7D7EC;font-size:15.6px;max-width:640px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;max-width:560px}
.hero-stat{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(16,27,51,.6);padding:14px 16px;
}
.hero-stat b{display:block;font-size:20px;font-weight:900;color:var(--lime)}
.hero-stat span{font-size:12px;color:var(--txt-dim)}
.hero-panel{
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(16,27,51,.92),rgba(5,11,24,.92));
  box-shadow:var(--shadow-card);padding:24px;
}
.hero-panel h3{font-size:16px;font-weight:800;margin:0 0 6px}
.hero-panel p{font-size:13.5px;color:var(--txt-soft);margin:0 0 16px}
.channel-list{display:flex;flex-direction:column;gap:10px}
.channel-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px solid var(--line);border-radius:var(--radius-s);
  padding:10px 13px;background:rgba(56,189,248,.05);font-size:13.5px;
}
.channel-item i{color:var(--volt);width:18px;text-align:center}
.channel-item span{flex:1;color:var(--txt)}
.channel-item em{color:var(--lime);font-style:normal;font-weight:700;font-size:12px}
/* COUNTDOWN */
.countdown-bar{
  border:1px solid var(--line-strong);border-radius:var(--radius-m);
  background:linear-gradient(90deg,rgba(37,99,235,.25),rgba(163,230,53,.18));
  padding:14px 18px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-top:26px;
}
.countdown-bar .label{font-size:13px;color:#DCEBFF;display:flex;align-items:center;gap:8px}
.countdown-bar .label i{color:var(--gold)}
.clock{display:flex;gap:8px}
.clock div{
  min-width:52px;text-align:center;border-radius:var(--radius-s);
  background:rgba(5,11,24,.7);border:1px solid var(--line-strong);padding:6px 4px;
}
.clock b{display:block;font-size:17px;font-weight:900;color:#fff}
.clock span{font-size:10.5px;color:var(--txt-dim);letter-spacing:.06em}
/* CARDS */
.card{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:linear-gradient(170deg,rgba(16,27,51,.82),rgba(5,11,24,.86));
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(56,189,248,.22)}
.card i.ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.14);color:var(--volt);font-size:19px;margin-bottom:14px;
}
.card h3{font-size:17px;font-weight:800;margin:0 0 8px}
.card p{font-size:14px;color:var(--txt-soft);margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
/* FLOW */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-item{position:relative;padding:22px 20px;border-radius:var(--radius-m);border:1px dashed var(--line-strong);background:rgba(10,20,40,.55)}
.flow-item:before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:22px;font-weight:900;color:var(--lime);display:block;margin-bottom:10px;
}
.flow-item h4{font-size:15.5px;font-weight:800;margin:0 0 7px}
.flow-item p{font-size:13.5px;color:var(--txt-soft);margin:0}
/* SCENARIO */
.scenario{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.scenario:last-child{border-bottom:none}
.scenario i{flex:none;width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(251,191,36,.14);color:var(--gold);font-size:17px}
.scenario h4{margin:0 0 5px;font-size:15.5px;font-weight:800}
.scenario p{margin:0;font-size:13.8px;color:var(--txt-soft)}
/* TABLE */
.rate-table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden}
.rate-table th,.rate-table td{padding:13px 16px;font-size:13.8px;text-align:left;border-bottom:1px solid var(--line)}
.rate-table th{background:rgba(56,189,248,.1);color:var(--volt);font-weight:700;text-transform:uppercase;font-size:11.5px;letter-spacing:.08em}
.rate-table tr:last-child td{border-bottom:none}
.rate-table td b{color:var(--lime)}
/* LIST */
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.check-list li{display:flex;gap:11px;font-size:14.2px;color:var(--txt-soft)}
.check-list li i{color:var(--lime);margin-top:4px}
/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-m);background:rgba(10,20,40,.6);margin-bottom:12px;overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:17px 20px;font-weight:700;font-size:15px;
  display:flex;justify-content:space-between;gap:14px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--volt);transition:.25s}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 20px 18px;color:var(--txt-soft);font-size:14px}
/* CTA */
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  background:linear-gradient(115deg,rgba(37,99,235,.35),rgba(163,230,53,.18)),rgba(5,11,24,.7);
  padding:36px;display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center;
  box-shadow:var(--shadow-glow);
}
.cta-band h3{margin:0 0 10px;font-size:clamp(20px,2.6vw,28px);font-weight:900}
.cta-band p{margin:0;color:#DCEBFF;font-size:14.6px}
/* CMS LIST */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  background:linear-gradient(170deg,rgba(16,27,51,.85),rgba(5,11,24,.9));
  display:flex;flex-direction:column;transition:transform .22s,border-color .22s;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.post-card img{width:100%;height:172px;object-fit:cover}
.post-card .body{padding:18px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-card h4{margin:0;font-size:15.5px;font-weight:800;line-height:1.4}
.post-card p{margin:0;font-size:13.5px;color:var(--txt-soft);flex:1}
.post-meta{display:flex;gap:12px;font-size:12px;color:var(--txt-dim);flex-wrap:wrap}
.post-meta i{color:var(--volt);margin-right:5px}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;border:2px solid var(--volt);
  background:rgba(7,7,13,.85);backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;color:var(--volt);font-size:20px;
  box-shadow:0 0 20px rgba(56,189,248,.45);opacity:.85;
  transition:transform .22s,opacity .22s,box-shadow .22s;cursor:pointer;text-decoration:none;
}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 30px rgba(56,189,248,.8)}
.fab:active{transform:scale(.95)}
.fab .dot{position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;background:var(--lime);border:2px solid var(--bg-0)}
/* FOOTER */
.site-footer{border-top:1px solid var(--line);background:rgba(5,11,24,.94);padding:56px 0 26px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.site-footer h4{font-size:14px;font-weight:800;margin:0 0 14px;color:var(--txt)}
.site-footer p{color:var(--txt-soft);font-size:13.6px;margin:0}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer ul a{font-size:13.6px;color:var(--txt-soft);transition:.2s}
.site-footer ul a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:34px;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-dim);
}
.badge-18{
  border:1px solid var(--rose);color:var(--rose);border-radius:999px;
  padding:3px 10px;font-size:11.5px;font-weight:800;
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .grid-3,.grid-4,.post-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-menu,.nav-actions .nav-login{display:none}
  .mobile-toggle{display:flex}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:560px){
  .section{padding:52px 0}
  .grid-3,.grid-4,.post-grid,.flow{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .rate-table th,.rate-table td{padding:11px 12px;font-size:12.8px}
  .cta-band{padding:24px}
}

/* roulang page: category2 */
:root{
  --bg-0:#050B18;
  --bg-1:#0A1428;
  --bg-2:#101B33;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.4);
  --txt:#E8EFFA;
  --txt-soft:#94A3B8;
  --txt-dim:#64748B;
  --volt:#38BDF8;
  --plasma:#2563EB;
  --lime:#A3E635;
  --gold:#FBBF24;
  --rose:#F43F5E;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -22px rgba(2,8,20,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',Inter,system-ui,sans-serif;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 480px at 92% 8%, rgba(56,189,248,.18), transparent 62%),
    var(--bg-0);
  color:var(--txt);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,40,.7),rgba(5,11,24,.2))}
.section-alt2{background:linear-gradient(180deg,rgba(16,27,51,.75),rgba(5,11,24,.35))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin:18px 0 14px;max-width:760px}
.section-desc{color:var(--txt-soft);max-width:760px;font-size:15.5px}
.grid{display:grid;gap:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#03121F;
  box-shadow:0 0 22px rgba(56,189,248,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.7)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--txt);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.btn-lime{
  background:linear-gradient(120deg,#A3E635,#22D3EE);
  color:#04121B;box-shadow:0 0 22px rgba(163,230,53,.35);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(163,230,53,.6)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);color:var(--volt);border:1px solid var(--line-strong);
}
.tag-gold{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.35)}
.tag-lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag-rose{background:rgba(244,63,94,.12);color:var(--rose);border-color:rgba(244,63,94,.35)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#38BDF8 55%,#A3E635);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.brand-text span{font-size:11px;color:var(--txt-dim);letter-spacing:.06em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  font-size:14px;font-weight:600;color:var(--txt-soft);
  padding:9px 14px;border-radius:999px;transition:.22s;
}
.nav-menu a:hover{color:var(--txt);background:rgba(56,189,248,.1)}
.nav-menu a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{
  font-size:13.5px;font-weight:700;color:var(--volt);
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;
  background:transparent;transition:.22s;
}
.nav-login:hover{background:rgba(56,189,248,.12)}
.nav-signup{
  font-size:13.5px;font-weight:800;color:#04121B;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  border-radius:999px;padding:10px 18px;border:none;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:.22s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.mobile-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
  color:var(--txt);align-items:center;justify-content:center;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,24,.98)}
.mobile-panel.open{display:block}
.mobile-panel .inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px}
.mobile-panel a{padding:11px 14px;border-radius:12px;font-weight:600;color:var(--txt-soft)}
.mobile-panel a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.mobile-panel a:hover{background:rgba(56,189,248,.1);color:var(--txt)}
.cat-hero{
  position:relative;overflow:hidden;
  padding:60px 0 54px;
  background:linear-gradient(120deg,rgba(5,11,24,.95),rgba(16,27,51,.85)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(720px 340px at 80% 18%,rgba(56,189,248,.22),transparent 66%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:900px}
.cat-hero h1{font-size:clamp(26px,3.6vw,42px);font-weight:900;margin:16px 0 16px;line-height:1.2}
.cat-hero h1 .hl{background:linear-gradient(100deg,#38BDF8,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero p{color:#C7D7EC;font-size:15.6px;max-width:760px}
.cat-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.glass-card{
  background:linear-gradient(160deg,rgba(16,27,51,.92),rgba(10,20,40,.72));
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 46px -22px rgba(56,189,248,.5)}
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}
.icon-badge{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(56,189,248,.22),rgba(37,99,235,.22));
  border:1px solid var(--line-strong);color:var(--volt);font-size:18px;flex:none;
}
.icon-badge.gold{background:linear-gradient(135deg,rgba(251,191,36,.22),rgba(245,158,11,.16));color:var(--gold);border-color:rgba(251,191,36,.4)}
.icon-badge.lime{background:linear-gradient(135deg,rgba(163,230,53,.2),rgba(34,211,238,.16));color:var(--lime);border-color:rgba(163,230,53,.4)}
.card-title{font-size:17.5px;font-weight:800;margin:0 0 8px}
.card-text{color:var(--txt-soft);font-size:14.6px;margin:0}
.stat-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px}
.stat-item b{display:block;font-size:26px;font-weight:900;color:var(--volt)}
.stat-item span{font-size:12.5px;color:var(--txt-dim);letter-spacing:.04em;text-transform:uppercase}
.tierline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tier{
  padding:18px;border-radius:var(--radius-m);
  border:1px solid var(--line);background:rgba(10,20,40,.6);
}
.tier h4{margin:0 0 6px;font-size:15px;font-weight:800}
.tier p{margin:0;font-size:13.4px;color:var(--txt-soft)}
.tier.active{border-color:var(--line-strong);background:rgba(56,189,248,.1);box-shadow:var(--shadow-glow)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;padding:24px;border-radius:var(--radius-m);
  border:1px solid var(--line);background:rgba(10,20,40,.6);
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:13px;font-weight:800;color:var(--lime);letter-spacing:.14em;display:block;margin-bottom:10px;
}
.step h4{margin:0 0 8px;font-size:16.5px;font-weight:800}
.step p{margin:0;font-size:14.4px;color:var(--txt-soft)}
.media-card{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  background:rgba(10,20,40,.6);
}
.media-card img{width:100%;height:220px;object-fit:cover}
.media-card .body{padding:20px}
.media-card h3{margin:0 0 8px;font-size:17px;font-weight:800}
.media-card p{margin:0;color:var(--txt-soft);font-size:14.5px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.check-list li{display:flex;gap:11px;align-items:flex-start;font-size:14.8px;color:var(--txt-soft)}
.check-list i{color:var(--lime);margin-top:4px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(10,20,40,.6);margin-bottom:14px;overflow:hidden;
}
.faq-item summary{
  cursor:pointer;padding:18px 20px;font-weight:700;font-size:15.4px;
  list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--volt);font-weight:800;font-size:19px}
.faq-item[open] summary::after{content:'–'}
.faq-item p{margin:0;padding:0 20px 20px;color:var(--txt-soft);font-size:14.6px}
.cta-band{
  border-radius:var(--radius-l);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(37,99,235,.24),rgba(56,189,248,.14)),rgba(10,20,40,.85);
  padding:34px;
  display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center;
  box-shadow:var(--shadow-glow);
}
.cta-band h2{margin:0 0 10px;font-size:clamp(21px,2.6vw,29px);font-weight:900}
.cta-band p{margin:0;color:#C7D7EC;font-size:15px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  background:rgba(10,20,40,.6);display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.post-card img{width:100%;height:170px;object-fit:cover}
.post-card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-card h3{margin:0;font-size:15.8px;font-weight:800;line-height:1.4}
.post-card p{margin:0;font-size:14px;color:var(--txt-soft)}
.post-meta{font-size:12.4px;color:var(--txt-dim);display:flex;gap:10px;flex-wrap:wrap}
.post-more{margin-top:auto;font-weight:700;color:var(--volt);font-size:14px}
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(5,11,24,.6),rgba(5,11,24,.98));
  padding:56px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.site-footer p{color:var(--txt-soft);font-size:14.2px}
.site-footer h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--volt);margin:0 0 14px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer ul a{font-size:14px;color:var(--txt-soft);transition:.2s}
.site-footer ul a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:32px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-dim);
}
.badge-18{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;font-weight:900;font-size:13px;
  background:rgba(244,63,94,.14);color:var(--rose);border:1px solid rgba(244,63,94,.4);
}
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
  box-shadow:0 0 22px rgba(56,189,248,.6);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-size:21px;opacity:.85;
  transition:transform .22s ease,opacity .22s ease;
}
.fab:hover{transform:scale(1.1);opacity:1}
.fab .dot{
  position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:999px;
  background:#F43F5E;border:2px solid #050B18;
}
@media (max-width:1024px){
  .bento{grid-template-columns:repeat(6,1fr)}
  .col-3,.col-4,.col-5{grid-column:span 3}
  .col-6,.col-7,.col-8{grid-column:span 6}
  .tierline{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
  .nav-menu{display:none}
  .mobile-toggle{display:flex}
  .nav-login,.nav-signup{display:inline-flex}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 1}
  .post-grid{grid-template-columns:1fr}
  .tierline{grid-template-columns:1fr}
  .brand-text b{max-width:150px;font-size:13px}
}
@media (max-width:520px){
  .nav-actions .nav-login{display:none}
  .cta-band{padding:24px}
  .glass-card{padding:20px}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
  --bg-0:#050B18;
  --bg-1:#0A1428;
  --bg-2:#101B33;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.4);
  --txt:#E8EFFA;
  --txt-soft:#94A3B8;
  --txt-dim:#64748B;
  --volt:#38BDF8;
  --plasma:#2563EB;
  --lime:#A3E635;
  --gold:#FBBF24;
  --rose:#F43F5E;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -22px rgba(2,8,20,.9);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',Inter,system-ui,sans-serif;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 480px at 92% 8%, rgba(56,189,248,.18), transparent 62%),
    var(--bg-0);
  color:var(--txt);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,40,.7),rgba(5,11,24,.2))}
.section-alt2{background:linear-gradient(180deg,rgba(16,27,51,.75),rgba(5,11,24,.35))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.08);
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin:18px 0 14px;max-width:780px}
.section-desc{color:var(--txt-soft);max-width:780px;font-size:15.5px}
.grid{display:grid;gap:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#03121F;
  box-shadow:0 0 22px rgba(56,189,248,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.7)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--txt);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.btn-lime{
  background:linear-gradient(120deg,#A3E635,#22D3EE);
  color:#04121B;box-shadow:0 0 22px rgba(163,230,53,.35);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(163,230,53,.6)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);color:var(--volt);border:1px solid var(--line-strong);
}
.tag-gold{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.35)}
.tag-lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag-rose{background:rgba(244,63,94,.12);color:var(--rose);border-color:rgba(244,63,94,.35)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#38BDF8 55%,#A3E635);
  display:flex;align-items:center;justify-content:center;
  color:#04121B;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.brand-text span{font-size:11px;color:var(--txt-dim);letter-spacing:.06em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  font-size:14px;font-weight:600;color:var(--txt-soft);
  padding:9px 14px;border-radius:999px;transition:.22s;
}
.nav-menu a:hover{color:var(--txt);background:rgba(56,189,248,.1)}
.nav-menu a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{
  font-size:13.5px;font-weight:700;color:var(--volt);
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;
  background:transparent;transition:.22s;
}
.nav-login:hover{background:rgba(56,189,248,.12)}
.nav-signup{
  font-size:13.5px;font-weight:800;color:#04121B;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  border-radius:999px;padding:10px 18px;border:none;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:.22s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.06);
  color:var(--txt);font-size:16px;cursor:pointer;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,24,.98)}
.mobile-panel.open{display:block}
.mobile-panel .inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px}
.mobile-panel a{padding:11px 14px;border-radius:12px;font-weight:600;color:var(--txt-soft)}
.mobile-panel a.active{color:#04121B;background:linear-gradient(120deg,#38BDF8,#A3E635)}
.mobile-panel a:hover{background:rgba(56,189,248,.1);color:var(--txt)}
/* CATE HERO */
.cate-hero{
  position:relative;overflow:hidden;padding:60px 0 56px;
  background:linear-gradient(120deg,rgba(5,11,24,.95),rgba(10,20,40,.88)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.cate-hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(680px 320px at 82% 18%,rgba(56,189,248,.22),transparent 66%);
  pointer-events:none;
}
.cate-hero .inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.cate-hero h1{font-size:clamp(26px,3.8vw,44px);font-weight:900;line-height:1.18;margin:16px 0 16px}
.cate-hero h1 .hl{background:linear-gradient(100deg,#38BDF8,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.cate-hero p.lead{color:#C7D7EC;font-size:15.6px;max-width:620px}
.cate-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.coupon-panel{
  position:relative;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(16,27,51,.94),rgba(10,20,40,.92));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),var(--shadow-glow);
  padding:22px;
}
.coupon-panel .coupon-label{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:800}
.coupon-value{font-size:40px;font-weight:900;line-height:1.1;margin:6px 0 4px;background:linear-gradient(100deg,#FBBF24,#A3E635);-webkit-background-clip:text;background-clip:text;color:transparent}
.coupon-note{color:var(--txt-soft);font-size:13.5px}
.coupon-code{
  margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px dashed var(--line-strong);border-radius:14px;padding:12px 14px;
  background:rgba(56,189,248,.06);
}
.coupon-code b{font-size:16px;letter-spacing:.16em;color:var(--lime)}
.coupon-code span{font-size:11.5px;color:var(--txt-dim);text-transform:uppercase}
.coupon-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
/* BENEFIT CARDS */
.b-card{
  border-radius:var(--radius-m);
  background:linear-gradient(160deg,rgba(16,27,51,.85),rgba(10,20,40,.7));
  border:1px solid var(--line);
  padding:22px;
  transition:.25s;
}
.b-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.b-icon{
  width:46px;height:46px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);
  color:var(--volt);font-size:18px;margin-bottom:14px;
}
.b-icon.gold{background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.35);color:var(--gold)}
.b-icon.lime{background:rgba(163,230,53,.12);border-color:rgba(163,230,53,.35);color:var(--lime)}
.b-icon.rose{background:rgba(244,63,94,.12);border-color:rgba(244,63,94,.35);color:var(--rose)}
.b-card h3{font-size:16.5px;font-weight:800;margin:0 0 8px}
.b-card p{color:var(--txt-soft);font-size:14.3px;margin:0}
/* TIER / PROGRESS */
.tier-card{
  border-radius:var(--radius-m);border:1px solid var(--line);
  background:rgba(10,20,40,.6);padding:18px 20px;
  display:flex;flex-direction:column;gap:10px;
  transition:.25s;
}
.tier-card:hover{border-color:var(--line-strong)}
.tier-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.tier-name{font-weight:800;font-size:15.5px}
.tier-bar{height:8px;border-radius:999px;background:rgba(56,189,248,.14);overflow:hidden}
.tier-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2563EB,#38BDF8,#A3E635)}
.tier-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--txt-dim)}
/* STEPS */
.step{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px;border-radius:var(--radius-m);
  border:1px solid var(--line);background:rgba(16,27,51,.6);
  transition:.25s;
}
.step:hover{border-color:var(--line-strong);background:rgba(16,27,51,.85)}
.step-num{
  flex:none;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#04121B;
  background:linear-gradient(135deg,#38BDF8,#A3E635);
}
.step h3{margin:0 0 6px;font-size:16px;font-weight:800}
.step p{margin:0;color:var(--txt-soft);font-size:14.2px}
/* SPOTLIGHT */
.spot{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(150deg,rgba(16,27,51,.95),rgba(5,11,24,.9));
}
.spot-img{position:relative;min-height:300px}
.spot-img img{width:100%;height:100%;object-fit:cover}
.spot-body{padding:30px}
.spot-body h3{font-size:22px;font-weight:800;margin:12px 0 10px}
.spot-body p{color:var(--txt-soft);font-size:14.6px}
.check-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:9px}
.check-list li{display:flex;gap:10px;font-size:14.2px;color:#C7D7EC}
.check-list i{color:var(--lime);margin-top:3px}
/* INFO LIST */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);
  background:rgba(10,20,40,.72);transition:.25s;display:flex;flex-direction:column;
}
.post-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.post-thumb{aspect-ratio:16/9;overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-meta{display:flex;gap:10px;font-size:12px;color:var(--txt-dim);flex-wrap:wrap}
.post-body h3{font-size:15.5px;font-weight:700;margin:0;line-height:1.45}
.post-body p{font-size:13.8px;color:var(--txt-soft);margin:0}
.post-body .more{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--volt)}
/* FAQ */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:rgba(10,20,40,.6);margin-bottom:12px;overflow:hidden;
  transition:.25s;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{
  width:100%;text-align:left;background:transparent;border:none;color:var(--txt);
  padding:18px 20px;font-size:15.4px;font-weight:700;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq-q i{color:var(--volt);transition:.25s}
.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 20px 20px;margin:0;color:var(--txt-soft);font-size:14.3px}
/* CTA */
.cta-band{
  border-radius:var(--radius-l);padding:40px;
  background:linear-gradient(120deg,rgba(37,99,235,.32),rgba(56,189,248,.16)),
    url('/assets/images/573de879941ec940.jpg') center/cover no-repeat;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band h3{font-size:clamp(20px,2.6vw,28px);font-weight:900;margin:0 0 8px}
.cta-band p{margin:0;color:#C7D7EC;font-size:14.8px;max-width:620px}
/* FOOTER */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(5,11,24,.6),rgba(5,11,24,.98));
  padding:54px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.site-footer p{color:var(--txt-soft);font-size:13.8px}
.site-footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--volt);margin:0 0 14px;font-weight:800}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer ul a{color:var(--txt-soft);font-size:13.8px;transition:.2s}
.site-footer ul a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--txt-dim);font-size:12.8px;
}
.badge-18{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:26px;border-radius:8px;font-size:12px;font-weight:900;color:#04121B;
  background:linear-gradient(120deg,#FBBF24,#F43F5E);
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(10px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.82),rgba(7,7,13,.82)),
    linear-gradient(120deg,#38BDF8,#A3E635);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--lime);font-size:20px;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  opacity:.8;transition:.25s;cursor:pointer;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 34px rgba(163,230,53,.7)}
.fab:active{transform:scale(.94)}
.fab .dot{
  position:absolute;top:6px;right:6px;width:10px;height:10px;border-radius:999px;
  background:#F43F5E;box-shadow:0 0 10px rgba(244,63,94,.9);
}
/* RESPONSIVE */
@media (max-width:1024px){
  .cate-hero .inner{grid-template-columns:1fr}
  .spot{grid-template-columns:1fr}
  .spot-img{min-height:230px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-menu,.nav-actions .nav-login,.nav-actions .nav-signup{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .section{padding:58px 0}
}
@media (max-width:560px){
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:26px}
  .brand-text b{max-width:160px;font-size:13px}
}
.nav-actions .nav-signup{white-space:nowrap}