/* roulang page: index */
:root{
  --bg-deep:#030712;
  --bg-navy:#081229;
  --bg-glass:rgba(15,23,42,.62);
  --line-soft:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --text-main:#F8FAFC;
  --text-sub:#94A3B8;
  --text-holo:#60A5FA;
  --gold:#FBBF24;
  --green:#10B981;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -18px rgba(2,6,23,.9);
  --font-main:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(900px 500px at 92% 4%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-navy) 52%,#04070f 100%);
  color:var(--text-main);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.24;font-weight:800;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(56,189,248,.35)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(15,23,42,.45),rgba(3,7,18,.1));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:14px 0 12px}
.section-head p{color:var(--text-sub);font-size:16px}
.text-accent{color:var(--cyan)}
.text-gold{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:15px;border-radius:999px;padding:13px 26px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  will-change:transform;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#04121f;
  box-shadow:0 0 22px rgba(56,189,248,.5);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.75)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text-main);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,#F59E0B,#FBBF24);
  color:#1f1300;box-shadow:0 0 22px rgba(251,191,36,.42);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(251,191,36,.7)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  padding:5px 11px;border-radius:999px;letter-spacing:.04em;
}
.badge-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong)}
.badge-gold{background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.42)}
.badge-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.4)}
.glass{
  background:var(--bg-glass);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.glass:hover{border-color:var(--line-strong)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
  display:grid;place-items:center;font-weight:900;font-size:15px;color:#04121f;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.logo-text span{font-size:11px;color:var(--text-sub);letter-spacing:.12em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  font-size:14px;font-weight:600;color:var(--text-sub);
  padding:9px 13px;border-radius:10px;transition:color .2s,background .2s;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--text-main);background:rgba(56,189,248,.1)}
.main-nav a.active{color:var(--cyan);background:rgba(56,189,248,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-login{font-size:14px;font-weight:700;color:var(--cyan);padding:9px 6px;border-radius:8px}
.nav-login:hover{color:#7dd3fc}
.nav-signup{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:transform .2s,box-shadow .25s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.nav-toggle{display:none;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:var(--text-main);width:44px;height:44px;border-radius:12px;font-size:17px}
.mobile-menu{display:none;border-top:1px solid var(--line-soft);padding:14px 0 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 6px;font-size:15px;font-weight:600;color:var(--text-sub);border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a.active{color:var(--cyan)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:16px}
.mobile-menu .m-cta .btn{flex:1}

/* ---------- Hero ---------- */
.hero{position:relative;padding:66px 0 60px;overflow:hidden;background-image:url('/assets/images/4806d143d6a2475f.jpg');background-size:cover;background-position:center;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(6,14,36,.9) 46%,rgba(3,7,18,.62) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);
  background-size:56px 56px;opacity:.55;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(28px,4.2vw,50px);margin:18px 0 18px}
.hero-lead{color:#cbd5e1;font-size:16.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line-soft)}
.hero-stat b{display:block;font-size:24px;color:var(--cyan);font-weight:800}
.hero-stat span{font-size:12.5px;color:var(--text-sub);letter-spacing:.03em}
.hero-panel{padding:24px;border-radius:var(--radius-lg)}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hero-panel-head h3{font-size:17px}
.slot-list{display:flex;flex-direction:column;gap:12px}
.slot-item{display:flex;align-items:center;gap:14px;padding:12px;border-radius:var(--radius-md);background:rgba(2,6,23,.55);border:1px solid var(--line-soft);transition:border-color .2s,transform .2s}
.slot-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.slot-ico{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;font-size:17px;background:rgba(56,189,248,.12);color:var(--cyan)}
.slot-item b{font-size:14.5px;display:block}
.slot-item span{font-size:12.5px;color:var(--text-sub)}
.slot-ping{margin-left:auto;font-size:11.5px;font-weight:700;color:#34d399;display:flex;align-items:center;gap:6px}
.dot-live{width:7px;height:7px;border-radius:50%;background:#34d399;box-shadow:0 0 8px #34d399;animation:pulse 1.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- KPI ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi{padding:22px;border-radius:var(--radius-md);text-align:left}
.kpi-ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:18px;margin-bottom:14px;background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.2));color:var(--cyan)}
.kpi b{display:block;font-size:26px;font-weight:800;color:var(--text-main)}
.kpi span{font-size:13.5px;color:var(--text-sub)}

/* ---------- Flash sale bar ---------- */
.flash{border-radius:var(--radius-lg);padding:20px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;background:linear-gradient(100deg,rgba(37,99,235,.28),rgba(56,189,248,.12));border:1px solid var(--line-strong)}
.flash-left{display:flex;align-items:center;gap:16px}
.flash-left i{font-size:26px;color:var(--gold)}
.flash-left b{font-size:17px;display:block}
.flash-left span{font-size:13px;color:#cbd5e1}
.countdown{display:flex;gap:10px}
.cd-box{min-width:62px;text-align:center;background:rgba(2,6,23,.7);border:1px solid var(--line-soft);border-radius:12px;padding:8px 10px}
.cd-box b{display:block;font-size:20px;color:var(--cyan);font-weight:800}
.cd-box span{font-size:11px;color:var(--text-sub);text-transform:uppercase;letter-spacing:.08em}

/* ---------- Cards / grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{padding:26px;border-radius:var(--radius-lg);transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 44px -20px rgba(56,189,248,.5)}
.card-ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:20px;margin-bottom:16px;background:linear-gradient(135deg,rgba(37,99,235,.4),rgba(56,189,248,.22));color:var(--cyan)}
.card h3{font-size:18.5px;margin-bottom:10px}
.card p{color:var(--text-sub);font-size:14.5px}
.card-tag{position:absolute;top:14px;right:14px;font-size:11px;font-weight:800;letter-spacing:.08em;padding:4px 10px;border-radius:999px;background:rgba(37,99,235,.85);color:#fff}
.card-rel{position:relative}

/* ---------- Media blocks ---------- */
.media-band{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}
.media-band img{border-radius:var(--radius-lg);border:1px solid var(--line-soft);box-shadow:var(--shadow-card)}
.check-list{display:flex;flex-direction:column;gap:13px;margin-top:22px}
.check-list li{display:flex;gap:12px;font-size:14.8px;color:#cbd5e1}
.check-list i{color:var(--cyan);margin-top:4px}

/* ---------- Compare ---------- */
.compare{width:100%;border-collapse:separate;border-spacing:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-soft)}
.compare th,.compare td{padding:15px 18px;text-align:left;font-size:14.3px;border-bottom:1px solid rgba(148,163,184,.12)}
.compare thead th{background:rgba(37,99,235,.24);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:#dbeafe}
.compare tbody tr:nth-child(even){background:rgba(15,23,42,.4)}
.compare td:first-child{font-weight:700;color:var(--text-main)}
.compare .yes{color:#34d399;font-weight:700}
.compare .no{color:#94a3b8}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{padding:24px;border-radius:var(--radius-lg);position:relative}
.step-num{font-size:13px;font-weight:800;color:var(--cyan);letter-spacing:.14em;margin-bottom:12px;display:block}
.step h4{font-size:16.5px;margin-bottom:9px}
.step p{font-size:14px;color:var(--text-sub)}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(37,99,235,.15))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item::before{content:"";position:absolute;left:-29px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px rgba(56,189,248,.9)}
.tl-item b{display:block;font-size:15.5px;margin-bottom:5px}
.tl-item span{font-size:14px;color:var(--text-sub)}

/* ---------- Ratings ---------- */
.rate-item{padding:22px;border-radius:var(--radius-md)}
.rate-stars{color:var(--gold);font-size:13px;margin-bottom:10px;letter-spacing:2px}
.rate-item p{font-size:14.3px;color:#cbd5e1;margin-bottom:14px}
.rate-user{display:flex;align-items:center;gap:11px}
.rate-av{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121f}
.rate-user b{font-size:13.8px;display:block}
.rate-user span{font-size:12px;color:var(--text-sub)}

/* ---------- List rows (CMS) ---------- */
.post-list{display:flex;flex-direction:column;gap:14px}
.post-row{display:flex;gap:16px;padding:14px;border-radius:var(--radius-md);background:rgba(15,23,42,.55);border:1px solid var(--line-soft);transition:border-color .22s,transform .22s}
.post-row:hover{border-color:var(--line-strong);transform:translateX(4px)}
.post-row img{width:104px;height:76px;flex:0 0 104px;border-radius:10px;object-fit:cover}
.post-row b{font-size:15px;display:block;margin-bottom:6px}
.post-row p{font-size:13.4px;color:var(--text-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{font-size:12px;color:var(--text-holo);margin-top:7px;display:flex;gap:12px;flex-wrap:wrap}
.side-col{display:flex;flex-direction:column;gap:16px}
.side-post{display:flex;gap:12px;padding:13px;border-radius:var(--radius-md);background:rgba(15,23,42,.55);border:1px solid var(--line-soft);transition:border-color .2s}
.side-post:hover{border-color:var(--line-strong)}
.side-post img{width:74px;height:58px;flex:0 0 74px;border-radius:9px;object-fit:cover}
.side-post b{font-size:13.6px;display:block;line-height:1.4}
.side-post span{font-size:11.6px;color:var(--text-sub)}
.empty-note{padding:20px;border-radius:var(--radius-md);border:1px dashed var(--line-strong);color:var(--text-sub);font-size:14px}

/* ---------- Trust badges ---------- */
.trust-row{display:flex;flex-wrap:wrap;gap:14px}
.trust-item{display:flex;align-items:center;gap:11px;padding:13px 18px;border-radius:var(--radius-md);background:rgba(15,23,42,.55);border:1px solid var(--line-soft);font-size:13.6px;color:#cbd5e1}
.trust-item i{color:var(--cyan);font-size:16px}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line-soft);border-radius:var(--radius-md);margin-bottom:13px;background:rgba(15,23,42,.5);overflow:hidden}
.faq-q{width:100%;background:none;border:0;color:var(--text-main);text-align:left;font-size:15.5px;font-weight:700;padding:18px 20px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-q i{color:var(--cyan);transition:transform .25s}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--text-sub);font-size:14.5px}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 20px 20px}

/* ---------- CTA ---------- */
.cta-final{border-radius:var(--radius-lg);padding:46px 36px;text-align:center;background:linear-gradient(120deg,rgba(37,99,235,.35),rgba(56,189,248,.16));border:1px solid var(--line-strong);position:relative;overflow:hidden}
.cta-final h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.cta-final p{color:#cbd5e1;max-width:660px;margin:0 auto 26px;font-size:15.5px}
.cta-final .btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:rgba(2,6,23,.85);border-top:1px solid var(--line-soft);padding:56px 0 26px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.foot-brand p{color:var(--text-sub);font-size:14px;margin-top:16px;max-width:340px}
.foot h4{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-holo);margin-bottom:16px}
.foot a{display:block;color:var(--text-sub);font-size:14px;padding:6px 0;transition:color .2s}
.foot a:hover{color:var(--cyan)}
.foot-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(148,163,184,.12);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:var(--text-sub)}
.age-badge{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;border:1px solid rgba(239,68,68,.6);color:#fca5a5;font-weight:800;font-size:12px}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
  color:#04121f;font-size:21px;
  box-shadow:0 0 22px rgba(56,189,248,.6);
  border:1px solid rgba(224,242,254,.5);
  opacity:.85;transition:transform .25s,opacity .25s,box-shadow .25s;
}
.fab:hover{opacity:1;transform:scale(1.1) rotate(360deg);box-shadow:0 0 32px rgba(56,189,248,.95)}
.fab:active{transform:scale(.94) translateY(3px)}
.fab-badge{position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;background:#ef4444;border:2px solid #030712}

/* ---------- Sticky bottom bar ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(3,7,18,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-strong);
  padding:11px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.sticky-cta span{font-size:13.6px;color:#cbd5e1}
.sticky-cta b{color:var(--cyan)}

@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .media-band{grid-template-columns:1fr;gap:26px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
  .nav-cta .nav-signup{display:inline-flex}
  .nav-toggle{display:grid}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .logo-text b{max-width:170px;font-size:13.5px}
  .hero-stats{gap:18px}
  .flash{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .kpi-grid{grid-template-columns:1fr}
  .countdown{gap:7px}
  .cd-box{min-width:54px;padding:7px 8px}
  .foot-grid{grid-template-columns:1fr}
  .post-row{flex-direction:column}
  .post-row img{width:100%;height:150px;flex:none}
  .nav-cta .nav-login{display:none}
  .sticky-cta span{font-size:12.4px}
}

/* roulang page: article */
:root{
  --bg-deep:#030712;
  --bg-navy:#081229;
  --bg-glass:rgba(15,23,42,.62);
  --line-soft:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --text-main:#F8FAFC;
  --text-sub:#94A3B8;
  --text-holo:#60A5FA;
  --gold:#FBBF24;
  --green:#10B981;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -18px rgba(2,6,23,.9);
  --font-main:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(900px 500px at 92% 4%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-navy) 52%,#04070f 100%);
  color:var(--text-main);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(15,23,42,.45),rgba(3,7,18,.1));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:14px 0 12px}
.section-head p{color:var(--text-sub);font-size:16px}
.text-accent{color:var(--cyan)}
.text-gold{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:15px;border-radius:999px;padding:13px 26px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  will-change:transform;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  color:#04121f;
  box-shadow:0 0 22px rgba(56,189,248,.5);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.75)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text-main);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,#F59E0B,#FBBF24);
  color:#1f1300;box-shadow:0 0 22px rgba(251,191,36,.42);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(251,191,36,.7)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  padding:5px 11px;border-radius:999px;letter-spacing:.04em;
}
.badge-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong)}
.badge-gold{background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.42)}
.badge-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.4)}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
  display:grid;place-items:center;font-weight:900;font-size:15px;color:#04121f;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.logo-text span{font-size:11px;color:var(--text-sub);letter-spacing:.12em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  font-size:14px;font-weight:600;color:var(--text-sub);
  padding:9px 13px;border-radius:10px;transition:color .2s,background .2s;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--text-main);background:rgba(56,189,248,.1)}
.main-nav a.active{color:var(--cyan);background:rgba(56,189,248,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-login{font-size:14px;font-weight:700;color:var(--cyan);padding:9px 6px;border-radius:8px}
.nav-login:hover{color:#7dd3fc}
.nav-signup{
  font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;
  box-shadow:0 0 18px rgba(56,189,248,.45);transition:transform .2s,box-shadow .25s;
}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.nav-toggle{display:none;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:var(--text-main);width:44px;height:44px;border-radius:12px;font-size:17px}
.mobile-menu{display:none;border-top:1px solid var(--line-soft);padding:14px 0 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 6px;font-size:15px;font-weight:600;color:var(--text-sub);border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a.active{color:var(--cyan)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:16px}
.mobile-menu .m-cta .btn{flex:1}
/* ---------- Article hero ---------- */
.article-hero{
  position:relative;padding:56px 0 48px;overflow:hidden;
  background-image:url('/assets/images/930432b68e60e352.jpg');
  background-size:cover;background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(6,14,36,.92) 50%,rgba(3,7,18,.72) 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;pointer-events:none;
}
.article-hero-inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-sub);margin-bottom:18px}
.breadcrumb a{color:var(--text-holo);font-weight:600}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb i{font-size:10px;opacity:.6}
.article-hero h1{
  font-size:clamp(26px,4.2vw,44px);line-height:1.24;font-weight:900;
  letter-spacing:-.02em;margin:16px 0 18px;
  background:linear-gradient(120deg,#F8FAFC 20%,#7dd3fc 78%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-hero .lead{font-size:17px;color:#CBD5E1;max-width:760px;margin-bottom:22px}
.article-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:13px;color:var(--text-sub)}
.article-meta .m-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--cyan)}
.article-cover{
  position:relative;z-index:2;margin-top:32px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;max-height:440px;object-fit:cover}
/* ---------- Article layout ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
.article-main{
  background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  padding:34px 34px 30px;box-shadow:var(--shadow-card);backdrop-filter:blur(10px);
  min-width:0;
}
.article-content{font-size:16.5px;color:#D7E1EE;line-height:1.72;word-wrap:break-word;overflow-wrap:break-word}
.article-content h2{
  font-size:clamp(21px,2.6vw,28px);font-weight:800;margin:34px 0 14px;color:#F8FAFC;line-height:1.3;
  padding-left:14px;border-left:3px solid var(--cyan);
}
.article-content h3{font-size:19px;font-weight:800;margin:26px 0 10px;color:#E2E8F0}
.article-content p{margin:0 0 16px}
.article-content a{color:var(--cyan);font-weight:600;text-decoration:underline;text-decoration-color:rgba(56,189,248,.4);text-underline-offset:3px}
.article-content a:hover{color:#7dd3fc}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px}
.article-content li{margin-bottom:9px}
.article-content ul li::marker{color:var(--cyan)}
.article-content ol li::marker{color:var(--cyan);font-weight:700}
.article-content img{border-radius:var(--radius-md);margin:20px 0;border:1px solid var(--line-soft)}
.article-content blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--gold);
  background:rgba(251,191,36,.07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#FDE68A;
}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--line-soft);padding:11px 14px;text-align:left}
.article-content th{background:rgba(56,189,248,.1);color:var(--cyan);font-weight:700}
.article-content tr:nth-child(even) td{background:rgba(15,23,42,.4)}
.article-content strong{color:#fff}
.notfound{text-align:center;padding:40px 10px}
.notfound i{font-size:44px;color:var(--text-sub);margin-bottom:14px}
.notfound h2{font-size:22px;margin-bottom:10px}
.notfound p{color:var(--text-sub);margin-bottom:22px}
/* ---------- Sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px}
.side-card{
  background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-card);backdrop-filter:blur(10px);
}
.side-card h4{font-size:15px;font-weight:800;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.side-card h4 i{color:var(--cyan)}
.side-card p{font-size:14px;color:var(--text-sub);margin:0 0 16px;line-height:1.6}
.side-links{display:flex;flex-direction:column;gap:4px}
.side-links a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-sub);font-weight:600;transition:background .2s,color .2s,transform .2s;
}
.side-links a:hover{background:rgba(56,189,248,.1);color:var(--text-main);transform:translateX(3px)}
.side-links a i{color:var(--cyan);width:16px;font-size:13px}
.side-cta{
  background:linear-gradient(150deg,rgba(37,99,235,.28),rgba(56,189,248,.12));
  border:1px solid var(--line-strong);border-radius:var(--radius-md);padding:24px;text-align:center;
}
.side-cta h4{font-size:17px;margin:0 0 8px}
.side-cta p{font-size:14px;color:#CBD5E1;margin:0 0 18px}
.side-cta .btn{width:100%}
/* ---------- Share / tags ---------- */
.article-foot{margin-top:34px;padding-top:22px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-sub)}
.share-row a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-soft);color:var(--text-holo);
  transition:transform .2s,background .2s,color .2s;
}
.share-row a:hover{transform:translateY(-3px);background:rgba(56,189,248,.2);color:#fff}
/* ---------- Related ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);
  overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.rel-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.rel-card img{width:100%;height:172px;object-fit:cover}
.rel-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16px;font-weight:700;line-height:1.4;margin:0}
.rel-body p{font-size:14px;color:var(--text-sub);margin:0;flex:1}
.rel-body .rel-more{font-size:13px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}
/* ---------- FAQ ---------- */
.faq-item{
  background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.open{box-shadow:var(--shadow-glow)}
.faq-q{
  width:100%;background:none;border:0;color:var(--text-main);text-align:left;
  padding:18px 20px;font-size:16px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq-q i{color:var(--cyan);transition:transform .3s;font-size:14px}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 20px 18px;margin:0;color:var(--text-sub);font-size:15px}
/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;
  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,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  display:grid;place-items:center;color:var(--cyan);font-size:21px;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  transition:transform .25s,box-shadow .25s,opacity .25s;opacity:.8;
}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 34px rgba(56,189,248,.85)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .dot{
  position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;
  background:#EC4899;box-shadow:0 0 10px #EC4899;animation:fabPulse 1.6s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
/* ---------- Bottom bar ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(3,7,18,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-strong);
  padding:11px 0;
}
.bottom-bar .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.bottom-bar .txt{font-size:14px;font-weight:700}
.bottom-bar .txt span{color:var(--cyan)}
.bottom-bar .acts{display:flex;gap:10px}
.bottom-bar .btn{padding:10px 20px;font-size:14px}
/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;background:linear-gradient(180deg,rgba(3,7,18,.6),#02040a);
  border-top:1px solid var(--line-soft);padding:56px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;margin-bottom:38px}
.foot-brand .logo{margin-bottom:16px}
.foot p{font-size:14px;color:var(--text-sub);line-height:1.65;margin:0}
.foot h4{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--text-main);margin:0 0 16px}
.foot a{display:block;font-size:14px;color:var(--text-sub);padding:6px 0;transition:color .2s,transform .2s}
.foot a:hover{color:var(--cyan);transform:translateX(3px)}
.foot-bottom{
  border-top:1px solid var(--line-soft);padding-top:22px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:center;
  font-size:13px;color:var(--text-sub);
}
.age-badge{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;
  border:2px solid rgba(251,191,36,.6);color:var(--gold);font-size:12px;font-weight:900;
}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-wrap{grid-template-columns:1fr;gap:32px}
  .article-side{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-cta .nav-login{display:none}
  .nav-toggle{display:grid;place-items:center}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .article-main{padding:24px 20px}
  .logo-text b{max-width:150px;font-size:13px}
  .logo-text span{display:none}
  .grid-3{grid-template-columns:1fr}
  .article-hero{padding:40px 0 34px}
  .foot-grid{grid-template-columns:1fr}
  .bottom-bar .inner{justify-content:center;text-align:center}
  .bottom-bar .txt{width:100%;font-size:13px}
  .fab{width:52px;height:52px;font-size:19px;bottom:88px;left:14px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#030712;
  --bg-navy:#081229;
  --bg-glass:rgba(15,23,42,.62);
  --line-soft:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --text-main:#F8FAFC;
  --text-sub:#94A3B8;
  --text-holo:#60A5FA;
  --gold:#FBBF24;
  --green:#10B981;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -18px rgba(2,6,23,.9);
  --font-main:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(900px 500px at 92% 4%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-navy) 52%,#04070f 100%);
  color:var(--text-main);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(15,23,42,.45),rgba(3,7,18,.1));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;
}
.section-head{max-width:800px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:14px 0 12px}
.section-head p{color:var(--text-sub);font-size:16px}
.text-accent{color:var(--cyan)}
.text-gold{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:15px;border-radius:999px;padding:13px 26px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.75)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text-main)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,#F59E0B,#FBBF24);color:#1f1300;box-shadow:0 0 22px rgba(251,191,36,.42)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(251,191,36,.7)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;letter-spacing:.04em}
.badge-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong)}
.badge-gold{background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.42)}
.badge-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.4)}
/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:linear-gradient(135deg,#2563EB,#38BDF8);display:grid;place-items:center;font-weight:900;font-size:15px;color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.5)}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.logo-text span{font-size:11px;color:var(--text-sub);letter-spacing:.12em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{font-size:14px;font-weight:600;color:var(--text-sub);padding:9px 13px;border-radius:10px;transition:color .2s,background .2s;white-space:nowrap}
.main-nav a:hover{color:var(--text-main);background:rgba(56,189,248,.1)}
.main-nav a.active{color:var(--cyan);background:rgba(56,189,248,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-login{font-size:14px;font-weight:700;color:var(--cyan);padding:9px 6px;border-radius:8px}
.nav-login:hover{color:#7dd3fc}
.nav-signup{font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.45);transition:transform .2s,box-shadow .25s}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.nav-toggle{display:none;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:var(--text-main);width:44px;height:44px;border-radius:12px;font-size:17px}
.mobile-menu{display:none;border-top:1px solid var(--line-soft);padding:14px 0 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 6px;font-size:15px;font-weight:600;color:var(--text-sub);border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a.active{color:var(--cyan)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:16px}
.mobile-menu .m-cta .btn{flex:1}
/* Page hero */
.page-hero{position:relative;padding:64px 0 58px;overflow:hidden;background-image:url('/assets/images/930432b68e60e352.jpg');background-size:cover;background-position:center}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(6,14,36,.9) 48%,rgba(3,7,18,.66) 100%)}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06)1px,transparent 1px);background-size:56px 56px;opacity:.5;pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--text-sub);margin-bottom:16px}
.crumb a:hover{color:var(--cyan)}
.page-hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.18;margin:16px 0 16px;max-width:880px}
.page-hero p.lead{color:#cbd5e1;font-size:17px;max-width:720px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:38px}
.stat{background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:16px 18px;backdrop-filter:blur(10px)}
.stat b{display:block;font-size:22px;color:var(--cyan);font-weight:800}
.stat span{font-size:13px;color:var(--text-sub)}
/* Grids & cards */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;backdrop-filter:blur(10px)}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.card-body{padding:22px}
.card-body h3{font-size:19px;margin:0 0 10px}
.card-body p{color:var(--text-sub);font-size:15px;margin:0}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-tag{position:absolute;top:12px;left:12px}
.layout-asym{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
.feature-list{list-style:none;padding:0;margin:0}
.feature-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.18)}
.feature-list li:last-child{border-bottom:0}
.feature-list i{color:var(--cyan);margin-top:4px}
.feature-list b{display:block;font-size:15px}
.feature-list span{color:var(--text-sub);font-size:14px}
.num-list{counter-reset:step;list-style:none;padding:0;margin:0}
.num-list li{position:relative;padding:14px 0 14px 52px;border-bottom:1px solid rgba(148,163,184,.14)}
.num-list li::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:0;top:14px;width:38px;height:38px;border-radius:12px;background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--cyan);font-weight:800;font-size:13px;display:grid;place-items:center}
.num-list b{display:block;font-size:15px}
.num-list span{color:var(--text-sub);font-size:14px}
.table-wrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:var(--radius-lg);background:var(--bg-glass)}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:14px 16px;text-align:left;font-size:14px;border-bottom:1px solid rgba(148,163,184,.14)}
th{background:rgba(56,189,248,.08);color:var(--cyan);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
tr:last-child td{border-bottom:0}
td b{color:var(--text-main)}
.faq-item{border:1px solid var(--line-soft);border-radius:var(--radius-md);background:var(--bg-glass);margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 20px;background:none;border:0;color:var(--text-main);font-size:16px;font-weight:700;text-align:left}
.faq-q i{color:var(--cyan);transition:transform .25s ease}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 18px;margin:0;color:var(--text-sub);font-size:15px}
.cta-band{background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(56,189,248,.14));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:34px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px}
.cta-band h2{font-size:clamp(22px,3vw,30px);margin:0 0 8px}
.cta-band p{color:var(--text-sub);margin:0;max-width:640px}
.news-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(148,163,184,.14)}
.news-item:last-child{border-bottom:0}
.news-thumb{width:110px;height:78px;flex:0 0 110px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-item h3{font-size:16px;margin:0 0 6px}
.news-item h3 a:hover{color:var(--cyan)}
.news-item p{color:var(--text-sub);font-size:14px;margin:0 0 6px}
.news-meta{font-size:12px;color:#64748b}
/* Footer */
.site-footer{background:rgba(3,7,18,.92);border-top:1px solid var(--line-soft);padding:56px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot h4{font-size:14px;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);margin:0 0 14px}
.foot a{display:block;font-size:14px;color:var(--text-sub);padding:6px 0;transition:color .2s}
.foot a:hover{color:var(--text-main)}
.foot-brand p{color:var(--text-sub);font-size:14px;margin:16px 0 0;max-width:380px}
.foot-brand .logo{margin-bottom:2px}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;border-top:1px solid rgba(148,163,184,.14);margin-top:38px;padding-top:22px;font-size:13px;color:#64748b}
.age-badge{display:inline-grid;place-items:center;width:38px;height:26px;border-radius:8px;background:rgba(239,68,68,.16);border:1px solid rgba(239,68,68,.5);color:#fca5a5;font-weight:800;font-size:12px}
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121f;font-size:20px;box-shadow:0 0 25px rgba(56,189,248,.55);transition:transform .25s ease,box-shadow .25s ease;opacity:.9}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 38px rgba(56,189,248,.85)}
.fab:active{transform:scale(.94)}
.fab span.dot{position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;background:#ef4444;box-shadow:0 0 0 2px #030712}
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .layout-asym{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:grid;place-items:center}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .cta-band{padding:24px}
  .foot-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-thumb{width:88px;height:66px;flex:0 0 88px}
  .fab{bottom:88px;left:12px;width:50px;height:50px;font-size:18px}
}

/* roulang page: category2 */
:root{
  --bg-deep:#030712;
  --bg-navy:#081229;
  --bg-glass:rgba(15,23,42,.62);
  --line-soft:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --text-main:#F8FAFC;
  --text-sub:#94A3B8;
  --text-holo:#60A5FA;
  --gold:#FBBF24;
  --green:#10B981;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -18px rgba(2,6,23,.9);
  --font-main:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(900px 500px at 92% 4%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-navy) 52%,#04070f 100%);
  color:var(--text-main);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
*{box-sizing:border-box}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
button{cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(15,23,42,.45),rgba(3,7,18,.1));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:14px 0 12px;line-height:1.25}
.section-head p{color:var(--text-sub);font-size:16px;margin:0}
.text-accent{color:var(--cyan)}
.text-gold{color:var(--gold)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;font-size:15px;border-radius:999px;padding:13px 26px;border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;will-change:transform}
.btn-primary{background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.75)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text-main)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,#F59E0B,#FBBF24);color:#1f1300;box-shadow:0 0 22px rgba(251,191,36,.42)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(251,191,36,.7)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;letter-spacing:.04em}
.badge-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong)}
.badge-gold{background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.42)}
.badge-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.4)}
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:linear-gradient(135deg,#2563EB,#38BDF8);display:grid;place-items:center;font-weight:900;font-size:15px;color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.5)}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.logo-text span{font-size:11px;color:var(--text-sub);letter-spacing:.12em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{font-size:14px;font-weight:600;color:var(--text-sub);padding:9px 13px;border-radius:10px;transition:color .2s,background .2s;white-space:nowrap}
.main-nav a:hover{color:var(--text-main);background:rgba(56,189,248,.1)}
.main-nav a.active{color:var(--cyan);background:rgba(56,189,248,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-login{font-size:14px;font-weight:700;color:var(--cyan);padding:9px 6px;border-radius:8px}
.nav-login:hover{color:#7dd3fc}
.nav-signup{font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.45);transition:transform .2s,box-shadow .25s}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.nav-toggle{display:none;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:var(--text-main);width:44px;height:44px;border-radius:12px;font-size:17px}
.mobile-menu{display:none;border-top:1px solid var(--line-soft);padding:14px 0 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 6px;font-size:15px;font-weight:600;color:var(--text-sub);border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a.active{color:var(--cyan)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:16px}
.mobile-menu .m-cta .btn{flex:1}
.cat-hero{position:relative;overflow:hidden;padding:82px 0 74px;background-image:url('/assets/images/930432b68e60e352.jpg');background-size:cover;background-position:center}
.cat-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(3,7,18,.97) 0%,rgba(7,18,46,.92) 48%,rgba(3,7,18,.70) 100%)}
.cat-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);background-size:52px 52px;opacity:.56}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.cat-hero h1{font-size:clamp(30px,5vw,56px);line-height:1.12;margin:18px 0 18px;font-weight:900}
.cat-hero h1 span{background:linear-gradient(90deg,#38BDF8,#60A5FA,#FBBF24);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-copy{font-size:17px;color:#cbd5e1;max-width:680px;margin-bottom:26px}
.hero-points{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:12px}
.hero-points li{display:flex;gap:11px;align-items:flex-start;color:#dbeafe;font-size:15px}
.hero-points i{color:var(--cyan);margin-top:4px}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:22px}
.trust-strip{display:flex;flex-wrap:wrap;gap:10px}
.trust-strip span{display:inline-flex;align-items:center;gap:7px;background:rgba(15,23,42,.66);border:1px solid var(--line-soft);border-radius:999px;padding:8px 12px;color:#cbd5e1;font-size:12px;font-weight:700}
.hero-panel{background:rgba(15,23,42,.70);border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px)}
.hero-panel h3{font-size:18px;margin:0 0 16px;font-weight:800}
.live-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid rgba(148,163,184,.14)}
.live-row:last-child{border-bottom:0;padding-bottom:0}
.live-row b{font-size:18px;color:#fff}
.live-row span{font-size:13px;color:var(--text-sub)}
.hero-panel-img{border-radius:var(--radius-md);overflow:hidden;margin-bottom:18px;border:1px solid var(--line-soft)}
.hero-panel-img img{width:100%;height:178px;object-fit:cover}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.metric{background:rgba(56,189,248,.07);border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:15px}
.metric b{display:block;font-size:21px;color:var(--cyan);line-height:1.2}
.metric span{font-size:12px;color:var(--text-sub)}
.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{background:linear-gradient(180deg,rgba(15,23,42,.78),rgba(7,14,31,.74));border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:26px;transition:transform .25s,border-color .25s,box-shadow .25s}
.info-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.info-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--cyan);font-size:19px;margin-bottom:16px}
.info-card h3{font-size:18px;margin:0 0 10px}
.info-card p{color:var(--text-sub);margin:0;font-size:15px}
.scenario-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:34px;align-items:center}
.scenario-img{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.scenario-img img{width:100%;height:430px;object-fit:cover}
.scenario-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.scenario-list li{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:flex-start;padding:16px;background:rgba(15,23,42,.54);border:1px solid var(--line-soft);border-radius:var(--radius-md)}
.scenario-list b{display:block;font-size:16px;margin-bottom:4px}
.scenario-list span{color:var(--text-sub);font-size:14px}
.scenario-list em{font-style:normal;width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121f;font-weight:900}
.compare-wrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:var(--radius-lg);background:rgba(15,23,42,.50)}
.compare-table{width:100%;border-collapse:collapse;min-width:720px}
.compare-table th,.compare-table td{padding:17px 20px;text-align:left;border-bottom:1px solid rgba(148,163,184,.13);font-size:14px}
.compare-table th{background:rgba(37,99,235,.16);color:#dbeafe;font-size:13px;text-transform:uppercase;letter-spacing:.05em}
.compare-table td:first-child{color:#fff;font-weight:700}
.compare-table td{color:var(--text-sub)}
.compare-table tr:last-child td{border-bottom:0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{position:relative;padding:24px;border-radius:var(--radius-lg);background:rgba(15,23,42,.58);border:1px solid var(--line-soft)}
.step::before{counter-increment:step;content:"0" counter(step);font-size:28px;font-weight:900;color:rgba(56,189,248,.35);display:block;margin-bottom:12px}
.step h3{font-size:17px;margin:0 0 9px}
.step p{color:var(--text-sub);margin:0;font-size:14px}
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.channel{text-align:center;padding:22px 14px;border-radius:var(--radius-md);background:rgba(15,23,42,.62);border:1px solid var(--line-soft);transition:transform .2s,border-color .2s}
.channel:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.channel i{display:block;font-size:24px;color:var(--cyan);margin-bottom:10px}
.channel b{display:block;font-size:15px;margin-bottom:5px}
.channel span{font-size:12px;color:var(--text-sub)}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.content-card{background:rgba(15,23,42,.72);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s;display:flex;flex-direction:column}
.content-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.content-card img{width:100%;height:190px;object-fit:cover}
.content-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.content-body h3{font-size:17px;line-height:1.4;margin:0}
.content-body p{font-size:14px;color:var(--text-sub);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.content-meta{font-size:12px;color:var(--text-holo);display:flex;gap:12px;flex-wrap:wrap}
.empty-note{color:var(--text-sub);background:rgba(15,23,42,.62);border:1px solid var(--line-soft);padding:18px 20px;border-radius:var(--radius-md)}
.faq-list{display:grid;gap:14px}
.faq-item{background:rgba(15,23,42,.68);border:1px solid var(--line-soft);border-radius:var(--radius-md);overflow:hidden}
.faq-item summary{padding:19px 22px;cursor:pointer;font-weight:800;list-style:none;position:relative;padding-right:52px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:22px;font-weight:400}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px;margin:0;color:var(--text-sub);font-size:15px}
.cta-band{background:linear-gradient(100deg,rgba(37,99,235,.24),rgba(56,189,248,.10)),rgba(15,23,42,.64);border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:42px;display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;box-shadow:var(--shadow-card)}
.cta-band h2{font-size:clamp(25px,3.4vw,38px);margin:12px 0 12px;line-height:1.24}
.cta-band p{color:var(--text-sub);margin:0 0 22px}
.cta-side{background:rgba(3,7,18,.42);border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:22px}
.cta-side ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.cta-side li{display:flex;gap:10px;color:#e2e8f0;font-size:14px}
.cta-side i{color:var(--green);margin-top:4px}
.visibility{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.visibility-box{padding:24px;border-radius:var(--radius-lg);border:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(15,23,42,.64),rgba(3,7,18,.38))}
.visibility-box b{display:block;font-size:27px;color:var(--cyan);margin-bottom:6px}
.visibility-box span{font-size:14px;color:var(--text-sub)}
.site-footer{background:#02050d;border-top:1px solid var(--line-soft);padding:58px 0 0;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.35fr .65fr .65fr .85fr;gap:34px;padding-bottom:38px}
.foot-brand p{color:var(--text-sub);font-size:14px;margin:18px 0 0;max-width:450px}
.foot h4{font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:#fff;margin:0 0 15px}
.foot a{display:block;color:var(--text-sub);font-size:14px;padding:5px 0;transition:color .2s}
.foot a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid var(--line-soft);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:18px;color:var(--text-sub);font-size:13px}
.age-badge{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;border:1px solid rgba(251,191,36,.55);color:var(--gold);font-weight:900}
.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,.82);border:1px solid transparent;background-clip:padding-box;color:#fff;box-shadow:0 0 22px rgba(56,189,248,.45);opacity:.82;transition:transform .2s,opacity .2s,box-shadow .2s}
.fab::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(135deg,#38BDF8,#A3E635);z-index:-1}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 32px rgba(56,189,248,.78)}
.fab:active{transform:scale(.95) translateY(4px)}
.fab .dot{position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:999px;background:#DC2626;border:2px solid #fff}
@media(max-width:1024px){
  .main-nav{display:none}.nav-toggle{display:grid;place-items:center}
  .cat-hero-inner,.scenario-grid,.cta-band{grid-template-columns:1fr}
  .three-grid,.content-grid,.visibility{grid-template-columns:repeat(2,1fr)}
  .steps,.channel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .logo-text b{max-width:170px}.nav-signup{padding:10px 15px}.nav-login{padding:9px 3px}
  .section{padding:56px 0}.cat-hero{padding:60px 0}
  .cat-hero h1{font-size:38px}.hero-panel{padding:18px}.scenario-img img{height:330px}
  .cta-band{padding:30px}.foot-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .container{padding:0 15px}.nav-wrap{min-height:66px}.logo-mark{width:40px;height:40px;flex-basis:40px}
  .logo-text b{max-width:118px;font-size:13px}.logo-text span{display:none}
  .nav-login,.nav-signup{font-size:12px;padding:9px 8px}
  .cat-hero h1{font-size:31px}.hero-copy{font-size:15px}
  .hero-actions .btn,.mobile-menu .m-cta .btn{width:100%}
  .three-grid,.content-grid,.visibility,.steps,.channel-grid,.metric-grid,.foot-grid{grid-template-columns:1fr}
  .info-card,.step,.visibility-box{padding:20px}
  .scenario-list li{grid-template-columns:38px 1fr;padding:14px}
  .scenario-list em{width:38px;height:38px}
  .cta-band{padding:24px}
  .fab{left:12px;bottom:86px;width:54px;height:54px}
}

/* roulang page: category3 */
:root{
  --bg-deep:#030712;
  --bg-navy:#081229;
  --bg-glass:rgba(15,23,42,.62);
  --line-soft:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --text-main:#F8FAFC;
  --text-sub:#94A3B8;
  --text-holo:#60A5FA;
  --gold:#FBBF24;
  --green:#10B981;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-glow:0 0 24px rgba(56,189,248,.28);
  --shadow-card:0 18px 40px -18px rgba(2,6,23,.9);
  --font-main:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(900px 500px at 92% 4%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-navy) 52%,#04070f 100%);
  color:var(--text-main);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(15,23,42,.45),rgba(3,7,18,.1));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;
}
.section-head{max-width:800px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:14px 0 12px;line-height:1.25}
.section-head p{color:var(--text-sub);font-size:16px;margin:0}
.text-accent{color:var(--cyan)}
.text-gold{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:15px;border-radius:999px;padding:13px 26px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.75)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text-main)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,#F59E0B,#FBBF24);color:#1f1300;box-shadow:0 0 22px rgba(251,191,36,.42)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(251,191,36,.7)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;letter-spacing:.04em}
.badge-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-strong)}
.badge-gold{background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.42)}
.badge-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.4)}
/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:linear-gradient(135deg,#2563EB,#38BDF8);display:grid;place-items:center;font-weight:900;font-size:15px;color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.5)}
.logo-text{display:flex;flex-direction:column;min-width:0}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.logo-text span{font-size:11px;color:var(--text-sub);letter-spacing:.12em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{font-size:14px;font-weight:600;color:var(--text-sub);padding:9px 13px;border-radius:10px;transition:color .2s,background .2s;white-space:nowrap}
.main-nav a:hover{color:var(--text-main);background:rgba(56,189,248,.1)}
.main-nav a.active{color:var(--cyan);background:rgba(56,189,248,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-login{font-size:14px;font-weight:700;color:var(--cyan);padding:9px 6px;border-radius:8px}
.nav-login:hover{color:#7dd3fc}
.nav-signup{font-size:14px;font-weight:800;padding:10px 20px;border-radius:999px;background:linear-gradient(120deg,#2563EB,#38BDF8);color:#04121f;box-shadow:0 0 18px rgba(56,189,248,.45);transition:transform .2s,box-shadow .25s}
.nav-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.nav-toggle{display:none;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:var(--text-main);width:44px;height:44px;border-radius:12px;font-size:17px}
.mobile-menu{display:none;border-top:1px solid var(--line-soft);padding:14px 0 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 6px;font-size:15px;font-weight:600;color:var(--text-sub);border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a.active{color:var(--cyan)}
.mobile-menu .m-cta{display:flex;gap:10px;margin-top:16px}
.mobile-menu .m-cta .btn{flex:1}
/* Hero */
.cat-hero{position:relative;padding:64px 0 56px;overflow:hidden;background-image:url('/assets/images/930432b68e60e352.jpg');background-size:cover;background-position:center}
.cat-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(3,7,18,.97) 0%,rgba(6,14,36,.9) 48%,rgba(3,7,18,.66) 100%)}
.cat-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);background-size:56px 56px;opacity:.5;pointer-events:none}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.cat-hero h1{font-size:clamp(28px,4.4vw,47px);line-height:1.16;margin:16px 0 16px;font-weight:800;letter-spacing:-.02em}
.cat-hero p.lead{color:#cbd5e1;font-size:17px;max-width:620px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:560px}
.hero-stat{background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:14px 16px;backdrop-filter:blur(12px)}
.hero-stat b{display:block;font-size:22px;color:var(--cyan);font-weight:800;line-height:1.2}
.hero-stat span{font-size:12.5px;color:var(--text-sub)}
.hero-panel{background:var(--bg-glass);border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:24px;backdrop-filter:blur(16px);box-shadow:var(--shadow-card)}
.hero-panel h3{margin:0 0 6px;font-size:18px}
.hero-panel p{color:var(--text-sub);font-size:14px;margin:0 0 18px}
.table-list{display:flex;flex-direction:column;gap:12px}
.table-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);background:rgba(2,6,23,.55);border:1px solid var(--line-soft)}
.table-row .tname{font-size:14.5px;font-weight:700}
.table-row .tmeta{font-size:12.5px;color:var(--text-sub)}
.tbl-bet{font-size:13.5px;font-weight:800;color:var(--gold);white-space:nowrap}
/* grids & cards */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:24px;backdrop-filter:blur(12px);transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.card h3{margin:14px 0 10px;font-size:19px}
.card p{color:var(--text-sub);font-size:15px;margin:0}
.card-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:19px;background:rgba(56,189,248,.12);color:var(--cyan);border:1px solid var(--line-strong)}
.card-list{margin:14px 0 0;padding:0;list-style:none}
.card-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-sub);padding:5px 0}
.card-list li i{color:var(--cyan);margin-top:5px;font-size:12px}
/* feature media block */
.media-block{display:grid;grid-template-columns:.95fr 1.05fr;gap:38px;align-items:center}
.media-block.rev .media-img{order:2}
.media-img{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-soft);box-shadow:var(--shadow-card);position:relative}
.media-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.media-body h2{font-size:clamp(23px,3.1vw,33px);margin:14px 0 14px;line-height:1.25}
.media-body p{color:var(--text-sub);font-size:15.5px}
.spec-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.spec-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#cbd5e1}
.spec-list li i{color:var(--gold);margin-top:4px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.step{position:relative;background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:22px 20px 20px}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-14px;left:18px;font-size:13px;font-weight:800;letter-spacing:.08em;color:#04121f;background:linear-gradient(120deg,#2563EB,#38BDF8);padding:4px 11px;border-radius:999px}
.step h4{margin:14px 0 8px;font-size:16.5px}
.step p{margin:0;color:var(--text-sub);font-size:14.5px}
/* compare table */
.cmp{width:100%;border-collapse:separate;border-spacing:0;background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden}
.cmp th,.cmp td{padding:15px 18px;font-size:14.5px;text-align:left;border-bottom:1px solid rgba(148,163,184,.12)}
.cmp th{background:rgba(37,99,235,.16);color:var(--text-main);font-weight:800;font-size:13.5px;letter-spacing:.04em;text-transform:uppercase}
.cmp td{color:var(--text-sub)}
.cmp td:first-child{color:var(--text-main);font-weight:600}
.cmp tr:last-child td{border-bottom:none}
.cmp .yes{color:#34d399;font-weight:700}
.cmp .no{color:#f87171;font-weight:700}
/* trust strip */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.trust-item{display:flex;gap:12px;align-items:flex-start;padding:18px;border-radius:var(--radius-md);background:rgba(2,6,23,.5);border:1px solid var(--line-soft)}
.trust-item i{font-size:19px;color:var(--cyan);margin-top:3px}
.trust-item b{display:block;font-size:15px;margin-bottom:4px}
.trust-item span{font-size:13.5px;color:var(--text-sub)}
/* news list */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{background:var(--bg-glass);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .3s}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;margin:0;line-height:1.4}
.news-body p{color:var(--text-sub);font-size:14.5px;margin:0;flex:1}
.news-meta{display:flex;gap:14px;font-size:12.5px;color:var(--text-sub);align-items:center}
.news-meta i{color:var(--cyan)}
.read-more{font-size:13.5px;font-weight:700;color:var(--cyan)}
.empty-note{color:var(--text-sub);font-size:15px;padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius-lg);text-align:center}
/* faq */
.faq-wrap{max-width:920px}
.faq-item{border:1px solid var(--line-soft);border-radius:var(--radius-md);background:var(--bg-glass);margin-bottom:14px;overflow:hidden;transition:border-color .25s}
.faq-item.open{border-color:var(--line-strong)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:transparent;border:none;color:var(--text-main);font-size:16px;font-weight:700;text-align:left}
.faq-q i{color:var(--cyan);transition:transform .25s}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{margin:0;padding:0 20px 20px;color:var(--text-sub);font-size:15px}
/* cta band */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(120deg,rgba(37,99,235,.30),rgba(56,189,248,.14));padding:44px 40px;display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center}
.cta-band h2{margin:0 0 12px;font-size:clamp(23px,3vw,32px)}
.cta-band p{margin:0;color:#cbd5e1;font-size:15.5px}
.cta-side{display:flex;flex-direction:column;gap:12px}
/* footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.6),#02040a);border-top:1px solid var(--line-soft);padding:56px 0 26px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot-brand p{color:var(--text-sub);font-size:14.5px;margin:16px 0 0;max-width:340px}
.foot h4{font-size:14px;margin:0 0 16px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-main)}
.foot a{display:block;font-size:14.5px;color:var(--text-sub);padding:6px 0;transition:color .2s}
.foot a:hover{color:var(--cyan)}
.foot-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:42px;padding-top:22px;border-top:1px solid var(--line-soft);color:var(--text-sub);font-size:13.5px}
.age-badge{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:rgba(251,191,36,.14);color:var(--gold);border:1px solid rgba(251,191,36,.45);font-weight:800;font-size:12.5px}
/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04121f;font-size:21px;box-shadow:0 0 22px rgba(56,189,248,.55);opacity:.88;transition:transform .25s,opacity .25s,box-shadow .25s}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 32px rgba(56,189,248,.85)}
.fab:active{transform:scale(.95)}
.fab-dot{position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:50%;background:#ef4444;border:2px solid #04121f}
/* sticky bottom bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:55;background:rgba(3,7,18,.94);backdrop-filter:blur(14px);border-top:1px solid var(--line-strong);padding:12px 0}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sticky-inner p{margin:0;font-size:14px;color:var(--text-sub)}
.sticky-inner p b{color:var(--text-main)}
/* responsive */
@media (max-width:1024px){
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:grid;place-items:center}
  .cat-hero-inner{grid-template-columns:1fr;gap:32px}
  .grid-3,.grid-4,.steps,.trust-grid,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .media-block{grid-template-columns:1fr;gap:26px}
  .media-block.rev .media-img{order:0}
  .cta-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .cat-hero{padding:48px 0 44px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .cmp th,.cmp td{padding:12px 12px;font-size:13.5px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .grid-3,.grid-4,.steps,.trust-grid,.news-grid,.hero-stats{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .cta-band{padding:30px 22px}
  .logo-text b{max-width:170px;font-size:13.5px}
  .sticky-inner{flex-direction:column;align-items:stretch;text-align:center}
}