/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1830;
  --panel:rgba(15,32,64,.55);
  --panel-solid:#0e1f3d;
  --border:rgba(56,189,248,.22);
  --border-strong:rgba(96,165,250,.45);
  --blue:#2563eb;
  --blue-2:#38bdf8;
  --cyan:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#60a5fa;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 45px -20px rgba(2,8,26,.9);
  --glow:0 0 32px -6px rgba(56,189,248,.55);
  --container:1200px;
  --font:"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);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 520px at 6% 6%, rgba(34,211,238,.16), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%, var(--bg-2) 46%, var(--bg) 100%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.24;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,3.4vw,3rem)}
h2{font-size:clamp(1.4rem,2.4vw,2.1rem)}
h3{font-size:clamp(1.1rem,1.6vw,1.35rem)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(4,10,24,.45));border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-2);background:rgba(37,99,235,.14);
  border:1px solid var(--border);border-radius:999px;padding:7px 14px;margin-bottom:16px
}
.lead{color:var(--muted);font-size:1.02rem;max-width:62ch}
.section-head{max-width:740px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.glass{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.card{
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.card h3{margin-bottom:.5em}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);
  color:#031024;box-shadow:0 12px 30px -10px rgba(56,189,248,.7);text-shadow:none
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(56,189,248,.95)}
.btn-ghost{
  background:rgba(56,189,248,.08);color:var(--blue-2);border-color:var(--border-strong)
}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block;box-shadow:0 0 10px var(--ok)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,8,20,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.16);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:900;font-size:1.05rem;
  box-shadow:0 10px 26px -10px rgba(56,189,248,.8)
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:.98rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease
}
.nav-links a:hover{color:var(--text);background:rgba(56,189,248,.1)}
.nav-links a.active{color:var(--blue-2);background:rgba(37,99,235,.16);border:1px solid var(--border)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{padding:10px 18px;font-size:.86rem}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border);color:var(--text);
  width:42px;height:42px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center
}
.mobile-menu{display:none;border-top:1px solid rgba(56,189,248,.14);background:rgba(4,10,24,.97)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 20px;border-bottom:1px solid rgba(56,189,248,.08);color:var(--muted);font-weight:600}
.mobile-menu a.active{color:var(--blue-2)}
.mobile-cta{display:flex;gap:10px;padding:16px 20px}
.mobile-cta .btn{flex:1}

/* Hero */
.hero{position:relative;padding:74px 0 62px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;background-image:linear-gradient(105deg,rgba(3,8,20,.94) 20%,rgba(6,18,42,.72) 100%),url('/assets/images/4735e36b976b83cd.jpg');
  background-size:cover;background-position:center;opacity:.6;z-index:-2
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(680px 420px at 82% 22%, rgba(56,189,248,.2), transparent 62%)
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero h1{margin-bottom:18px}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--cyan),var(--blue-2));
  -webkit-background-clip:text;background-clip:text;color:transparent
}
.hero-lead{color:var(--muted);font-size:1.02rem;max-width:60ch;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;
  color:#d7e9ff;background:rgba(56,189,248,.09);border:1px solid var(--border);
  border-radius:999px;padding:8px 14px
}
.chip i{color:var(--cyan)}
.hero-panel{padding:26px;border-radius:var(--radius-lg)}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-title strong{font-size:1rem}
.panel-title span{font-size:.74rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:18px}
.stat{
  background:rgba(8,18,41,.72);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:16px
}
.stat b{display:block;font-size:1.5rem;font-weight:800;color:var(--blue-2);letter-spacing:-.02em}
.stat span{font-size:.8rem;color:var(--muted)}
.panel-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:var(--muted);
  padding:9px 0;border-bottom:1px dashed rgba(56,189,248,.14)
}
.panel-list li:last-child{border-bottom:0}
.panel-list i{color:var(--ok);margin-top:4px}

/* Logo strip */
.logo-strip{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.logo-strip .item{
  display:flex;align-items:center;gap:10px;font-size:.86rem;font-weight:600;color:#c9defb;
  background:rgba(8,18,41,.6);border:1px solid var(--border);border-radius:999px;padding:10px 18px
}
.logo-strip i{color:var(--cyan)}

/* Scenario cards */
.scene-card{padding:24px;border-radius:var(--radius)}
.scene-card .icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
  background:rgba(37,99,235,.16);border:1px solid var(--border-strong);color:var(--cyan);font-size:1.05rem
}
.scene-card h3{margin-bottom:.45em}
.scene-card p{color:var(--muted);font-size:.93rem;margin:0}

/* Metric rows */
.metric-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.metric{
  padding:20px;border-radius:var(--radius);border:1px solid var(--border);
  background:linear-gradient(160deg,rgba(12,28,58,.85),rgba(6,14,32,.7))
}
.metric b{display:block;font-size:1.7rem;color:var(--blue-2);font-weight:800}
.metric span{font-size:.82rem;color:var(--muted)}

/* Feature band */
.band{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.band-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.band-media img{width:100%;height:100%;object-fit:cover}
.check-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid rgba(56,189,248,.12);font-size:.94rem;color:#d5e4f7}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--ok);margin-top:4px}
.check-list strong{color:var(--text)}

/* Tier table */
.tier-table{width:100%;border-collapse:separate;border-spacing:0;font-size:.92rem;overflow:hidden;border-radius:var(--radius);border:1px solid var(--border)}
.tier-table th,.tier-table td{padding:16px 18px;text-align:left;border-bottom:1px solid rgba(56,189,248,.12)}
.tier-table thead th{background:rgba(13,30,62,.9);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-2)}
.tier-table tbody tr{background:rgba(8,18,41,.55)}
.tier-table tbody tr:hover{background:rgba(13,30,62,.8)}
.tier-table td{color:var(--muted)}
.tier-table td strong{color:var(--text)}

/* Steps */
.steps{counter-reset:step;display:grid;gap:18px}
.step{display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;padding:20px;border-radius:var(--radius);border:1px solid var(--border);background:rgba(8,18,41,.5)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(34,211,238,.3));
  border:1px solid var(--border-strong);color:var(--blue-2);font-weight:800
}
.step h3{margin-bottom:.35em}
.step p{color:var(--muted);font-size:.93rem;margin:0}

/* News list */
.news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:26px;align-items:start}
.news-item{
  display:grid;grid-template-columns:150px 1fr;gap:18px;padding:16px;border-radius:var(--radius);
  border:1px solid var(--border);background:rgba(8,18,41,.5);transition:border-color .25s ease,transform .25s ease
}
.news-item:hover{border-color:var(--border-strong);transform:translateY(-3px)}
.news-item img{width:150px;height:104px;object-fit:cover;border-radius:var(--radius-sm)}
.news-item h3{font-size:1rem;margin-bottom:.4em}
.news-item p{color:var(--muted);font-size:.88rem;margin:0 0 .5em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{font-size:.78rem;color:var(--muted-2);display:flex;gap:12px;flex-wrap:wrap}
.side-list li{padding:13px 0;border-bottom:1px dashed rgba(56,189,248,.16)}
.side-list li:last-child{border-bottom:0}
.side-list a{font-size:.9rem;color:#cfe2f9;font-weight:600}
.side-list a:hover{color:var(--cyan)}
.side-list span{display:block;font-size:.76rem;color:var(--muted);margin-top:3px}
.empty-note{color:var(--muted);font-size:.9rem;padding:16px 0}

/* Trust icons */
.trust-bar{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);
  border:1px solid var(--border);background:rgba(8,18,41,.5)
}
.trust-item i{font-size:1.2rem;color:var(--cyan);margin-top:3px}
.trust-item strong{display:block;font-size:.94rem;margin-bottom:.2em}
.trust-item span{font-size:.82rem;color:var(--muted)}

/* FAQ */
.faq{display:grid;gap:14px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:rgba(8,18,41,.55);overflow:hidden}
.faq-item button{
  width:100%;background:transparent;border:0;color:var(--text);text-align:left;
  padding:18px 20px;font-weight:700;font-size:.98rem;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px
}
.faq-item button i{color:var(--blue-2);transition:transform .25s ease}
.faq-item.open button i{transform:rotate(45deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .32s ease;padding:0 20px}
.faq-item.open .faq-body{max-height:340px;padding-bottom:18px}
.faq-body p{color:var(--muted);font-size:.92rem;margin:0}
.faq-body h3{font-size:.98rem;margin:.8em 0 .35em}

/* CTA */
.cta-band{
  border-radius:var(--radius-lg);padding:44px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(140deg,rgba(37,99,235,.28),rgba(34,211,238,.14));
  border:1px solid var(--border-strong)
}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:#d3e3f8;max-width:62ch;margin:0 auto 22px}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Form */
.form-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:start}
.field{margin-bottom:16px}
.field label{display:block;font-size:.84rem;font-weight:600;color:#c8dcf7;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(4,11,26,.85);border:1px solid var(--border);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)
}
.form-note{font-size:.78rem;color:var(--muted);margin-top:12px}

/* Footer */
.site-footer{
  background:linear-gradient(180deg,rgba(4,10,24,.9),rgba(3,7,18,.98));
  border-top:1px solid rgba(56,189,248,.18);padding:56px 0 26px;margin-top:20px
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:14px 0 0;max-width:40ch}
.footer-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-2);margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:color .2s ease}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(56,189,248,.14);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.82rem;color:var(--muted)
}
.badge-18{
  display:inline-flex;align-items:center;gap:8px;font-size:.76rem;font-weight:700;
  color:#fbbf24;border:1px solid rgba(251,191,36,.4);border-radius:999px;padding:6px 12px;
  background:rgba(251,191,36,.08)
}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:70;width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;text-decoration:none;
  background:linear-gradient(140deg,#071228,#0c2a4a);
  border:2px solid var(--cyan);color:var(--cyan);font-size:1.15rem;
  box-shadow:0 0 28px -6px rgba(34,211,238,.75);
  animation:fabFloat 3.4s ease-in-out infinite;opacity:.85;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease
}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 40px -4px rgba(34,211,238,.95)}
.fab:active{transform:scale(.94)}
.fab .gem{
  position:absolute;top:-2px;right:-2px;width:13px;height:13px;border-radius:50%;
  background:var(--danger);border:2px solid #fff
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .band{grid-template-columns:1fr;gap:26px}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
  .metric-row,.trust-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .nav-links{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:32px 22px}
  .news-item{grid-template-columns:1fr}
  .news-item img{width:100%;height:170px}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:520px){
  .brand-text strong{font-size:.86rem}
  .stat-grid,.metric-row,.trust-bar,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:52px 0 44px}
  .fab{left:12px;bottom:88px;width:54px;height:54px}
  .tier-table{display:block;overflow-x:auto;white-space:nowrap}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1830;
  --panel:rgba(15,32,64,.55);
  --panel-solid:#0e1f3d;
  --border:rgba(56,189,248,.22);
  --border-strong:rgba(96,165,250,.45);
  --blue:#2563eb;
  --blue-2:#38bdf8;
  --cyan:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#60a5fa;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 45px -20px rgba(2,8,26,.9);
  --glow:0 0 32px -6px rgba(56,189,248,.55);
  --container:1200px;
  --font:"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);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 520px at 6% 6%, rgba(34,211,238,.16), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%, var(--bg-2) 46%, var(--bg) 100%);
  color:var(--text);
  line-height:1.68;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:800}
h1{font-size:clamp(1.85rem,3.6vw,2.85rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:1.15rem}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(4,10,24,.45));border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-2);background:rgba(37,99,235,.14);
  border:1px solid var(--border);border-radius:999px;padding:7px 14px;margin-bottom:16px;
}
.lead{color:var(--muted);font-size:1.02rem;max-width:66ch}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:linear-gradient(160deg,rgba(15,32,64,.62),rgba(8,18,41,.72));
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.card h3{margin-bottom:.5em}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.card p:last-child{margin-bottom:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);
  color:#031024;box-shadow:0 12px 30px -10px rgba(56,189,248,.7)
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(56,189,248,.95)}
.btn-ghost{background:rgba(56,189,248,.08);color:var(--blue-2);border-color:var(--border-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,8,20,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.16);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:900;font-size:1.05rem;
  box-shadow:0 10px 26px -10px rgba(56,189,248,.8)
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:.98rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease;white-space:nowrap
}
.nav-links a:hover{color:var(--text);background:rgba(56,189,248,.1)}
.nav-links a.active{color:var(--blue-2);background:rgba(37,99,235,.16);border:1px solid var(--border)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{padding:10px 18px;font-size:.86rem}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border);color:var(--text);
  width:42px;height:42px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center
}
.mobile-menu{display:none;border-top:1px solid rgba(56,189,248,.14);background:rgba(4,10,24,.97)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 20px;border-bottom:1px solid rgba(56,189,248,.08);color:var(--muted);font-weight:600}
.mobile-menu a.active{color:var(--blue-2)}
.mobile-cta{display:flex;gap:10px;padding:16px 20px}
.mobile-cta .btn{flex:1}
/* Chips & badges */
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;
  color:var(--muted);background:rgba(15,32,64,.7);border:1px solid var(--border);
  border-radius:999px;padding:8px 14px
}
.chip i{color:var(--cyan)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.tag{
  display:inline-flex;align-items:center;gap:7px;font-size:.72rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;padding:6px 12px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--border);color:var(--blue-2)
}
.tag--ok{background:rgba(52,211,153,.14);border-color:rgba(52,211,153,.4);color:var(--ok)}
.tag--warn{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--warn)}
/* Article layout */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);padding:22px 0 0}
.breadcrumb a{color:var(--blue-2)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb span.sep{color:rgba(148,163,184,.5)}
.article-hero{padding:32px 0 46px;position:relative;overflow:hidden}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(680px 380px at 78% 12%, rgba(56,189,248,.18), transparent 62%)
}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:38px;align-items:start}
.article-main{
  background:linear-gradient(165deg,rgba(13,28,56,.6),rgba(6,14,32,.82));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:34px 34px 38px;box-shadow:var(--shadow)
}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:18px 0 26px;font-size:.85rem;color:var(--muted)}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--border-strong)}
.article-cover{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);margin:6px 0 28px}
.article-cover img{width:100%;object-fit:cover;aspect-ratio:16/9}
.article-body{max-width:760px}
.article-body h2{margin-top:1.6em;font-size:clamp(1.35rem,2.2vw,1.7rem);padding-top:.2em}
.article-body h3{margin-top:1.4em;color:var(--blue-2)}
.article-body p{color:#cbd5e1;line-height:1.7}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--blue-2)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body ul li,.article-body ol li{color:#cbd5e1;margin-bottom:.55em;line-height:1.65}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:26px}
.article-body ul li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;color:var(--cyan);font-size:.82rem
}
.article-body img{border-radius:var(--radius);border:1px solid var(--border);margin:1.4em 0}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(37,99,235,.1);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#e2e8f0
}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.92rem}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left}
.article-body th{background:rgba(37,99,235,.16);color:var(--text);font-weight:700}
.article-body td{color:#cbd5e1}
.article-empty{
  text-align:left;padding:26px 0
}
.article-empty h2{margin-bottom:.6em}
.article-empty p{color:var(--muted)}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:linear-gradient(160deg,rgba(15,32,64,.62),rgba(8,18,41,.75));
  border:1px solid var(--border);border-radius:var(--radius);padding:24px
}
.side-card h3{font-size:1rem;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--cyan)}
.side-list li{margin-bottom:12px}
.side-list li:last-child{margin-bottom:0}
.side-list a{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:.9rem;transition:color .2s ease}
.side-list a:hover{color:var(--blue-2)}
.side-list a i{color:var(--cyan);margin-top:5px;font-size:.7rem}
.side-cta{text-align:left}
.side-cta p{font-size:.9rem;color:var(--muted);margin-bottom:16px}
.side-cta .btn{width:100%}
/* Stat / steps blocks */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
  background:linear-gradient(160deg,rgba(15,32,64,.62),rgba(8,18,41,.75));
  border:1px solid var(--border);border-radius:var(--radius);padding:22px;
  transition:transform .25s ease,border-color .25s ease
}
.stat:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.stat strong{display:block;font-size:1.75rem;font-weight:900;color:var(--blue-2);line-height:1.1;margin-bottom:6px}
.stat span{font-size:.85rem;color:var(--muted)}
.step-list{display:grid;gap:16px;counter-reset:step}
.step{
  display:flex;gap:18px;padding:22px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(15,32,64,.5),rgba(8,18,41,.7));
  border:1px solid var(--border)
}
.step-num{
  flex:0 0 44px;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#031024;font-weight:900
}
.step h3{margin-bottom:.35em;font-size:1.05rem}
.step p{margin:0;color:var(--muted);font-size:.93rem}
/* Channel badges */
.channel-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.channel{
  display:inline-flex;align-items:center;gap:8px;font-size:.83rem;font-weight:700;
  padding:9px 15px;border-radius:12px;background:rgba(15,32,64,.8);
  border:1px solid var(--border);color:var(--text)
}
.channel i{color:var(--cyan)}
/* FAQ */
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;
  background:linear-gradient(160deg,rgba(15,32,64,.5),rgba(8,18,41,.7));overflow:hidden
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;font-size:1rem;
  display:flex;justify-content:space-between;gap:16px;align-items:center
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--cyan);transition:transform .25s ease}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--muted);font-size:.94rem}
/* CTA band */
.cta-band{
  border-radius:var(--radius-lg);padding:40px;
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(34,211,238,.16));
  border:1px solid var(--border-strong);box-shadow:var(--shadow)
}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:#dbeafe;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
/* Footer */
.site-footer{border-top:1px solid rgba(56,189,248,.16);background:rgba(3,8,18,.9);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin-top:16px;max-width:44ch}
.badge-18{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:.78rem;font-weight:700;
  color:var(--warn);background:rgba(251,191,36,.12);border:1px solid rgba(251,191,36,.35);
  border-radius:999px;padding:7px 14px
}
.footer-col h4{font-size:.95rem;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--muted);font-size:.9rem;transition:color .2s ease}
.footer-col ul a:hover{color:var(--blue-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(56,189,248,.12);
  color:var(--muted);font-size:.82rem
}
.footer-bottom i{color:var(--cyan)}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#031024;
  font-size:1.25rem;box-shadow:0 0 24px rgba(6,182,212,.55);
  opacity:.8;transition:transform .25s ease,opacity .25s ease;
  animation:fabPulse 3s ease-in-out infinite
}
.fab:hover{opacity:1;transform:scale(1.09)}
.fab:active{transform:scale(.94)}
.fab .dot{
  position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:50%;
  background:var(--danger);box-shadow:0 0 0 2px #030712
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 20px rgba(6,182,212,.45)}50%{box-shadow:0 0 34px rgba(6,182,212,.8)}}
/* Responsive */
@media (max-width:1080px){
  .article-wrap{grid-template-columns:minmax(0,1fr) 290px}
  .nav-links a{padding:8px 10px;font-size:.85rem}
}
@media (max-width:960px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
  .article-wrap{grid-template-columns:1fr}
  .sidebar{position:static}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .article-main{padding:24px 20px 28px}
  .cta-band{padding:28px 22px}
}
@media (max-width:520px){
  .brand-text strong{font-size:.86rem}
  .nav-actions .btn-primary{padding:9px 14px;font-size:.8rem}
  .grid-4,.stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-hero{padding:20px 0 34px}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .hero-actions .btn,.cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1830;
  --panel:rgba(15,32,64,.55);
  --panel-solid:#0e1f3d;
  --border:rgba(56,189,248,.22);
  --border-strong:rgba(96,165,250,.45);
  --blue:#2563eb;
  --blue-2:#38bdf8;
  --cyan:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#60a5fa;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 45px -20px rgba(2,8,26,.9);
  --glow:0 0 32px -6px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 520px at 6% 6%, rgba(34,211,238,.16), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%, var(--bg-2) 46%, var(--bg) 100%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,4.4vw,3rem)}
h2{font-size:clamp(1.5rem,3vw,2.15rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(4,10,24,.45));border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-2);background:rgba(37,99,235,.14);
  border:1px solid var(--border);border-radius:999px;padding:7px 14px;margin-bottom:16px
}
.lead{color:var(--muted);font-size:1.02rem;max-width:64ch}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)
}
.card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.card h3{margin-bottom:.5em}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.card .ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(34,211,238,.28));
  border:1px solid var(--border-strong);color:var(--cyan);font-size:1.1rem
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);
  color:#031024;box-shadow:0 12px 30px -10px rgba(56,189,248,.7)
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(56,189,248,.95)}
.btn-ghost{background:rgba(56,189,248,.08);color:var(--blue-2);border-color:var(--border-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,8,20,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.16);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:900;font-size:1.05rem;
  box-shadow:0 10px 26px -10px rgba(56,189,248,.8)
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:.98rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:var(--text);background:rgba(56,189,248,.1)}
.nav-links a.active{color:var(--blue-2);background:rgba(37,99,235,.16);border:1px solid var(--border)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{padding:10px 18px;font-size:.86rem}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border);color:var(--text);width:42px;height:42px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center}
.mobile-menu{display:none;border-top:1px solid rgba(56,189,248,.14);background:rgba(4,10,24,.97)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 20px;border-bottom:1px solid rgba(56,189,248,.08);color:var(--muted);font-weight:600}
.mobile-menu a.active{color:var(--blue-2)}
.mobile-cta{display:flex;gap:10px;padding:16px 20px}
.mobile-cta .btn{flex:1}
.hero{position:relative;padding:70px 0 58px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:linear-gradient(105deg,rgba(3,8,20,.95) 18%,rgba(6,18,42,.72) 100%),url('/assets/images/1759790e0809f86c.jpg');
  background-size:cover;background-position:center;opacity:.62
}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(680px 420px at 84% 20%, rgba(56,189,248,.2), transparent 62%)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.hero h1{margin-bottom:18px}
.hero h1 .hl{background:linear-gradient(100deg,var(--cyan),var(--blue-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--muted);font-size:1.02rem;max-width:60ch;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:600;
  color:var(--blue-2);background:rgba(8,18,41,.72);border:1px solid var(--border);
  border-radius:999px;padding:8px 14px
}
.chip i{color:var(--ok)}
.hero-panel{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)
}
.hero-panel h3{font-size:1rem;text-transform:uppercase;letter-spacing:.1em;color:var(--blue-2);margin-bottom:18px}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px dashed rgba(56,189,248,.18)}
.status-row:last-child{border-bottom:0}
.status-row span{font-size:.9rem;color:var(--muted)}
.status-row strong{font-size:.92rem;color:var(--text)}
.pulse{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;
  color:var(--ok);text-transform:uppercase;letter-spacing:.08em
}
.pulse::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.55)}70%{box-shadow:0 0 0 12px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
  background:linear-gradient(160deg,rgba(15,32,64,.72),rgba(6,14,32,.6));
  border:1px solid var(--border);border-radius:var(--radius);padding:22px
}
.metric strong{display:block;font-size:1.7rem;font-weight:900;color:var(--cyan);letter-spacing:-.02em}
.metric span{font-size:.86rem;color:var(--muted)}
.service-list{display:grid;gap:14px}
.service{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  padding:20px 22px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  transition:border-color .25s ease,transform .25s ease
}
.service:hover{border-color:var(--border-strong);transform:translateX(4px)}
.service .ico{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;font-size:1.2rem;color:var(--cyan);background:rgba(37,99,235,.18);border:1px solid var(--border)}
.service h3{margin-bottom:4px;font-size:1.02rem}
.service p{margin:0;color:var(--muted);font-size:.9rem}
.service .tag{font-size:.75rem;font-weight:700;color:var(--ok);background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.3);border-radius:999px;padding:6px 12px;white-space:nowrap}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.compare-col.good{border-color:var(--border-strong);box-shadow:var(--glow)}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:1rem;text-transform:uppercase;letter-spacing:.08em}
.compare-col.good h3{color:var(--ok)}
.compare-col.bad h3{color:var(--danger)}
.compare-col ul li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed rgba(56,189,248,.14);color:var(--muted);font-size:.93rem}
.compare-col ul li:last-child{border-bottom:0}
.compare-col ul li i{margin-top:4px}
.compare-col.good ul li i{color:var(--ok)}
.compare-col.bad ul li i{color:var(--danger)}
.timeline{display:grid;gap:0;position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(37,99,235,.15))}
.timeline-item{position:relative;padding:0 0 28px 26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{content:"";position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.16)}
.timeline-item h3{font-size:1rem;margin-bottom:6px}
.timeline-item p{color:var(--muted);font-size:.92rem;margin:0}
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post{
  display:flex;flex-direction:column;overflow:hidden;background:var(--panel);
  border:1px solid var(--border);border-radius:var(--radius);transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease
}
.post:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.post-media{aspect-ratio:16/9;overflow:hidden;background:rgba(6,14,32,.8)}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post:hover .post-media img{transform:scale(1.06)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.post-meta .cat{color:var(--blue-2);font-weight:700}
.post-body h3{font-size:1.02rem;margin:0}
.post-body p{color:var(--muted);font-size:.9rem;margin:0}
.post-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:700;color:var(--blue-2)}
.trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.trust-item{display:flex;gap:14px;align-items:flex-start;padding:22px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}
.trust-item i{color:var(--cyan);font-size:1.3rem;margin-top:3px}
.trust-item h3{font-size:.98rem;margin-bottom:4px}
.trust-item p{margin:0;color:var(--muted);font-size:.88rem}
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .25s ease}
.faq-item[open]{border-color:var(--border-strong)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;font-size:.98rem;
  display:flex;align-items:center;justify-content:space-between;gap:14px
}
.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(--blue-2);font-size:.8rem;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 24px 22px;color:var(--muted);font-size:.94rem;margin:0}
.cta-band{
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(34,211,238,.16));
  border:1px solid var(--border-strong);border-radius:var(--radius-lg);padding:44px;
  display:grid;grid-template-columns:1.2fr auto;gap:30px;align-items:center;box-shadow:var(--glow)
}
.cta-band h2{margin-bottom:10px}
.cta-band p{color:var(--muted);margin:0}
.form-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:.83rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em}
.field input,.field textarea,.field select{
  width:100%;padding:13px 16px;border-radius:12px;background:rgba(4,10,24,.7);
  border:1px solid var(--border);color:var(--text);transition:border-color .2s ease,box-shadow .2s ease
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.field textarea{min-height:110px;resize:vertical}
.site-footer{border-top:1px solid rgba(56,189,248,.16);background:linear-gradient(180deg,rgba(3,8,20,.6),rgba(2,6,16,.95));padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:34px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:18px 0 16px;max-width:44ch}
.badge-18{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:700;color:var(--warn);background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.3);border-radius:999px;padding:8px 14px}
.footer-col h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-2);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--muted);font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
.footer-col ul li a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(56,189,248,.12);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.82rem}
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;font-size:1.3rem;color:#031024;
  background:linear-gradient(135deg,var(--cyan),var(--blue-2));
  border:1px solid rgba(255,255,255,.25);box-shadow:0 0 26px rgba(34,211,238,.5);
  opacity:.85;transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease
}
.fab::after{content:"";position:absolute;top:6px;right:6px;width:11px;height:11px;border-radius:50%;background:var(--danger);border:2px solid #04101f}
.fab:hover{transform:scale(1.1) rotate(8deg);opacity:1;box-shadow:0 0 38px rgba(34,211,238,.85)}
.fab:active{transform:scale(.94)}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .grid-4,.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.posts,.trust{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .grid-2,.grid-3,.grid-4,.posts,.trust,.compare,.metrics,.form-row{grid-template-columns:1fr}
  .service{grid-template-columns:46px 1fr;gap:14px}
  .service .tag{grid-column:span 2;justify-self:start}
  .brand-text span{display:none}
}
@media (max-width:520px){
  .hero{padding:52px 0 44px}
  .hero-actions .btn{width:100%}
  .nav-actions .btn-primary{padding:9px 13px;font-size:.78rem}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .fab{width:52px;height:52px;bottom:86px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1830;
  --panel:rgba(15,32,64,.55);
  --panel-solid:#0e1f3d;
  --border:rgba(56,189,248,.22);
  --border-strong:rgba(96,165,250,.45);
  --blue:#2563eb;
  --blue-2:#38bdf8;
  --cyan:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#60a5fa;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 45px -20px rgba(2,8,26,.9);
  --glow:0 0 32px -6px rgba(56,189,248,.55);
  --container:1200px;
  --font:"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);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 520px at 6% 6%, rgba(34,211,238,.16), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%, var(--bg-2) 46%, var(--bg) 100%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:800}
h1{font-size:clamp(1.85rem,4vw,2.85rem)}
h2{font-size:clamp(1.45rem,2.6vw,2.05rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(4,10,24,.45));border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-2);background:rgba(37,99,235,.14);border:1px solid var(--border);border-radius:999px;padding:7px 14px;margin-bottom:16px}
.lead{color:var(--muted);font-size:1.02rem;max-width:64ch}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{padding:26px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}
.card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.card h3{margin-bottom:.5em}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease}
.btn-primary{background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);color:#031024;box-shadow:0 12px 30px -10px rgba(56,189,248,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(56,189,248,.95)}
.btn-ghost{background:rgba(56,189,248,.08);color:var(--blue-2);border-color:var(--border-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,8,20,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(56,189,248,.16)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;font-weight:900;font-size:1.05rem;box-shadow:0 10px 26px -10px rgba(56,189,248,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:.98rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:var(--text);background:rgba(56,189,248,.1)}
.nav-links a.active{color:var(--blue-2);background:rgba(37,99,235,.16);border:1px solid var(--border)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{padding:10px 18px;font-size:.86rem}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border);color:var(--text);width:42px;height:42px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center}
.mobile-menu{display:none;border-top:1px solid rgba(56,189,248,.14);background:rgba(4,10,24,.97)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 20px;border-bottom:1px solid rgba(56,189,248,.08);color:var(--muted);font-weight:600}
.mobile-menu a.active{color:var(--blue-2)}
.mobile-cta{display:flex;gap:10px;padding:16px 20px}
.mobile-cta .btn{flex:1}
/* Category hero */
.cat-hero{position:relative;padding:64px 0 54px;overflow:hidden;border-bottom:1px solid rgba(56,189,248,.12)}
.cat-hero-bg{position:absolute;inset:0;background-image:linear-gradient(105deg,rgba(3,8,20,.95) 22%,rgba(6,18,42,.74) 100%),url('/assets/images/1759790e0809f86c.jpg');background-size:cover;background-position:center;opacity:.58;z-index:-2}
.cat-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(680px 420px at 84% 20%, rgba(56,189,248,.2), transparent 62%)}
.cat-hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:42px;align-items:center}
.cat-hero h1{margin-bottom:16px}
.cat-hero h1 .hl{background:linear-gradient(100deg,var(--cyan),var(--blue-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero-lead{color:var(--muted);font-size:1.02rem;max-width:62ch;margin-bottom:24px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;color:var(--blue-2);background:rgba(37,99,235,.14);border:1px solid var(--border);border-radius:999px;padding:6px 12px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
/* Glass panel */
.glass{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.panel{padding:26px}
/* Stat row */
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px}
.stat{text-align:left;padding:16px 18px;border-radius:var(--radius-sm);background:rgba(8,20,44,.6);border:1px solid rgba(56,189,248,.14)}
.stat b{display:block;font-size:1.3rem;color:var(--blue-2);font-weight:800}
.stat span{font-size:.8rem;color:var(--muted)}
/* Method cards */
.method{display:flex;flex-direction:column;gap:14px;padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--border);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.method:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.method-top{display:flex;align-items:center;gap:14px}
.method-icon{width:48px;height:48px;flex:0 0 48px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(37,99,235,.3),rgba(34,211,238,.22));border:1px solid var(--border-strong);color:var(--blue-2);font-size:1.2rem}
.method h3{margin:0;font-size:1.05rem}
.method p{color:var(--muted);font-size:.92rem;margin:0}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:5px 11px;border-radius:999px}
.tag-ok{background:rgba(52,211,153,.14);color:var(--ok);border:1px solid rgba(52,211,153,.3)}
.tag-warn{background:rgba(251,191,36,.14);color:var(--warn);border:1px solid rgba(251,191,36,.3)}
.tag-info{background:rgba(56,189,248,.14);color:var(--blue-2);border:1px solid var(--border-strong)}
/* Steps */
.steps{counter-reset:step;display:grid;gap:18px}
.step{position:relative;padding:24px 24px 24px 74px;border-radius:var(--radius);background:rgba(8,20,44,.55);border:1px solid rgba(56,189,248,.16)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:24px;width:36px;height:36px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#04101f;background:linear-gradient(135deg,var(--blue),var(--cyan))}
.step h3{margin-bottom:.35em;font-size:1.05rem}
.step p{color:var(--muted);margin:0;font-size:.94rem}
/* Table */
.matrix{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;font-size:.93rem}
.matrix th,.matrix td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(56,189,248,.12)}
.matrix th{background:rgba(37,99,235,.16);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-2)}
.matrix tr:last-child td{border-bottom:0}
.matrix td{color:var(--muted)}
.matrix td strong{color:var(--text)}
/* Checklist */
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:.95rem}
.checklist li i{color:var(--ok);margin-top:4px}
/* FAQ */
.faq-list{display:grid;gap:14px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:rgba(8,20,44,.5);overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--blue-2);transition:transform .25s ease;font-size:.85rem}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{margin:0;padding:0 22px 20px;color:var(--muted);font-size:.95rem}
/* Channel grid */
.channels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.channel{display:flex;flex-direction:column;gap:8px;padding:20px;border-radius:var(--radius-sm);background:rgba(8,20,44,.55);border:1px solid rgba(56,189,248,.16);transition:border-color .2s ease,transform .2s ease}
.channel:hover{border-color:var(--border-strong);transform:translateY(-4px)}
.channel i{font-size:1.35rem;color:var(--blue-2)}
.channel strong{font-size:.96rem}
.channel span{font-size:.82rem;color:var(--muted)}
/* News list */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;background:var(--panel);border:1px solid var(--border);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-3)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.news-body h3{font-size:1rem;margin:0}
.news-body p{color:var(--muted);font-size:.9rem;margin:0}
.news-more{margin-top:auto;font-weight:700;color:var(--blue-2);font-size:.9rem;display:inline-flex;align-items:center;gap:8px}
.news-empty{padding:34px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:var(--radius)}
/* CTA band */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:44px;background:linear-gradient(120deg,rgba(37,99,235,.35),rgba(34,211,238,.18));border:1px solid var(--border-strong);display:grid;grid-template-columns:1.4fr .6fr;gap:28px;align-items:center}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:var(--muted);margin-bottom:0}
/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:999px;display:grid;place-items:center;background:rgba(7,7,13,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:2px solid transparent;background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(135deg,var(--cyan),var(--blue-2));background-origin:border-box;background-clip:padding-box,border-box;color:var(--cyan);font-size:1.15rem;box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.8;transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;text-decoration:none}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 28px rgba(6,182,212,.75)}
.fab:active{transform:scale(.95);color:var(--danger)}
.fab-badge{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;padding:0 4px;border-radius:999px;background:var(--danger);color:#fff;font-size:.62rem;font-weight:800;display:grid;place-items:center;box-shadow:0 0 10px rgba(244,63,94,.8)}
/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(4,10,24,.7),rgba(2,6,16,.98));border-top:1px solid rgba(56,189,248,.16);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:18px 0}
.badge-18{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;color:var(--warn);background:rgba(251,191,36,.12);border:1px solid rgba(251,191,36,.3);border-radius:999px;padding:7px 14px}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-2);margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:color .2s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;border-top:1px solid rgba(56,189,248,.12);margin-top:38px;padding-top:22px;color:var(--muted);font-size:.82rem}
.footer-bottom i{color:var(--blue-2)}
/* Responsive */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .grid-4,.news-grid,.channels{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .grid-3{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .nav-actions .btn-primary{padding:9px 14px;font-size:.8rem}
}
@media (max-width:520px){
  .grid-2,.grid-4,.news-grid,.channels{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .brand-text strong{font-size:.85rem}
  .brand-text span{display:none}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1830;
  --panel:rgba(15,32,64,.55);
  --panel-solid:#0e1f3d;
  --border:rgba(56,189,248,.22);
  --border-strong:rgba(96,165,250,.45);
  --blue:#2563eb;
  --blue-2:#38bdf8;
  --cyan:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#60a5fa;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 18px 45px -20px rgba(2,8,26,.9);
  --glow:0 0 32px -6px rgba(56,189,248,.55);
  --container:1200px;
  --font:"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);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(900px 520px at 6% 6%, rgba(34,211,238,.16), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%, var(--bg-2) 46%, var(--bg) 100%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,4.4vw,3rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(4,10,24,.45));border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-2);background:rgba(37,99,235,.14);
  border:1px solid var(--border);border-radius:999px;padding:7px 14px;margin-bottom:16px
}
.lead{color:var(--muted);font-size:1.02rem;max-width:62ch}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.card h3{margin-bottom:.5em}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);
  color:#031024;box-shadow:0 12px 30px -10px rgba(56,189,248,.7)
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(56,189,248,.95)}
.btn-ghost{background:rgba(56,189,248,.08);color:var(--blue-2);border-color:var(--border-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,8,20,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.16);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:900;font-size:1.05rem;
  box-shadow:0 10px 26px -10px rgba(56,189,248,.8)
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:.98rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease
}
.nav-links a:hover{color:var(--text);background:rgba(56,189,248,.1)}
.nav-links a.active{color:var(--blue-2);background:rgba(37,99,235,.16);border:1px solid var(--border)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{padding:10px 18px;font-size:.86rem}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border);color:var(--text);
  width:42px;height:42px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center
}
.mobile-menu{display:none;border-top:1px solid rgba(56,189,248,.14);background:rgba(4,10,24,.97)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 20px;border-bottom:1px solid rgba(56,189,248,.08);color:var(--muted);font-weight:600}
.mobile-menu a.active{color:var(--blue-2)}
.mobile-cta{display:flex;gap:10px;padding:16px 20px}
.mobile-cta .btn{flex:1}
/* Category hero */
.cat-hero{position:relative;padding:66px 0 54px;overflow:hidden}
.cat-hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:linear-gradient(105deg,rgba(3,8,20,.95) 18%,rgba(6,18,42,.74) 100%),url('/assets/images/1759790e0809f86c.jpg');
  background-size:cover;background-position:center;opacity:.62
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(700px 420px at 88% 16%, rgba(56,189,248,.2), transparent 62%)
}
.cat-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.cat-hero h1{margin-bottom:16px}
.cat-hero h1 .hl{background:linear-gradient(100deg,var(--cyan),var(--blue-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero-lead{color:var(--muted);font-size:1.02rem;max-width:60ch;margin-bottom:24px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;
  padding:8px 14px;border-radius:999px;color:var(--muted-2);
  background:rgba(15,32,64,.6);border:1px solid var(--border)
}
.chip i{color:var(--cyan)}
/* Coupon wall */
.coupon-panel{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);position:relative;overflow:hidden
}
.coupon-panel::before{
  content:"";position:absolute;inset:0;background:radial-gradient(420px 240px at 88% 4%,rgba(56,189,248,.2),transparent 66%);pointer-events:none
}
.coupon-label{
  display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
  background:rgba(34,211,238,.12);border:1px solid var(--border);padding:6px 12px;border-radius:999px;margin-bottom:16px
}
.coupon-main{
  border:1px dashed rgba(56,189,248,.5);border-radius:var(--radius);padding:22px;
  background:linear-gradient(140deg,rgba(37,99,235,.24),rgba(34,211,238,.08));margin-bottom:18px
}
.coupon-main .value{font-size:2.1rem;font-weight:900;color:#fff;letter-spacing:-.02em;line-height:1.1}
.coupon-main .desc{color:var(--muted);font-size:.92rem;margin:8px 0 0}
.coupon-sub{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.coupon-sub div{
  border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;background:rgba(8,18,40,.6)
}
.coupon-sub strong{display:block;font-size:.95rem;color:var(--text)}
.coupon-sub span{font-size:.8rem;color:var(--muted)}
.coupon-note{font-size:.8rem;color:var(--muted);margin:12px 0 0}
/* Stats */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat{
  background:rgba(8,18,40,.62);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;text-align:left
}
.stat .num{font-size:1.7rem;font-weight:900;color:var(--blue-2);line-height:1.1}
.stat .cap{font-size:.82rem;color:var(--muted);margin-top:6px}
/* service matrix */
.matrix-card{display:flex;flex-direction:column;gap:14px}
.matrix-top{display:flex;align-items:center;gap:14px}
.matrix-icon{
  width:48px;height:48px;flex:0 0 48px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(34,211,238,.2));
  border:1px solid var(--border-strong);color:var(--cyan);font-size:1.15rem
}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;
  padding:5px 11px;border-radius:999px;text-transform:uppercase;letter-spacing:.08em
}
.tag-ok{background:rgba(52,211,153,.14);color:var(--ok);border:1px solid rgba(52,211,153,.35)}
.tag-blue{background:rgba(56,189,248,.14);color:var(--blue-2);border:1px solid var(--border-strong)}
.tag-warn{background:rgba(251,191,36,.14);color:var(--warn);border:1px solid rgba(251,191,36,.35)}
/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-box{border-radius:var(--radius);padding:26px;border:1px solid var(--border)}
.compare-good{background:linear-gradient(150deg,rgba(37,99,235,.2),rgba(8,18,40,.6));border-color:var(--border-strong)}
.compare-bad{background:rgba(10,14,28,.6);border-color:rgba(148,163,184,.2)}
.compare-box h3{display:flex;align-items:center;gap:10px}
.compare-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid rgba(56,189,248,.1);color:var(--muted);font-size:.93rem}
.compare-list li:last-child{border-bottom:none}
.compare-list i{color:var(--ok);margin-top:4px}
.compare-bad .compare-list i{color:var(--danger)}
/* steps */
.steps{counter-reset:step;display:grid;gap:18px}
.step{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px
}
.step-num{
  counter-increment:step;flex:0 0 46px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;font-weight:900
}
.step-num::before{content:counter(step,decimal-leading-zero)}
.step-body h3{margin-bottom:.35em}
.step-body p{color:var(--muted);font-size:.94rem;margin:0}
/* article list */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease
}
.post-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--glow)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(8,18,40,.6)}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:.76rem;color:var(--muted)}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.post-body h3{font-size:1.02rem;margin:0}
.post-body p{color:var(--muted);font-size:.9rem;margin:0}
.post-more{margin-top:auto;color:var(--blue-2);font-weight:700;font-size:.86rem;display:inline-flex;align-items:center;gap:8px}
.list-empty{color:var(--muted);font-size:.95rem;padding:26px;border:1px dashed var(--border);border-radius:var(--radius)}
/* guarantee */
.guarantee{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.guarantee-item{display:flex;gap:16px;background:rgba(8,18,40,.6);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.guarantee-item i{color:var(--cyan);font-size:1.35rem;margin-top:4px}
.guarantee-item h3{margin-bottom:.3em;font-size:1.02rem}
.guarantee-item p{color:var(--muted);font-size:.92rem;margin:0}
/* faq */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 22px;font-weight:700;font-size:1rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--blue-2);transition:transform .25s ease}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:.94rem}
/* CTA */
.cta-band{
  background:linear-gradient(130deg,rgba(37,99,235,.3),rgba(34,211,238,.12));
  border:1px solid var(--border-strong);border-radius:var(--radius-lg);padding:40px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;position:relative;overflow:hidden
}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(460px 260px at 90% 10%,rgba(56,189,248,.24),transparent 60%);pointer-events:none}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:var(--muted);margin-bottom:0;max-width:56ch}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:1}
/* footer */
.site-footer{background:linear-gradient(180deg,rgba(4,10,24,.6),rgba(2,6,16,.95));border-top:1px solid rgba(56,189,248,.16);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr .8fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:16px 0}
.badge-18{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;color:var(--warn);
  border:1px solid rgba(251,191,36,.35);background:rgba(251,191,36,.1);padding:7px 13px;border-radius:999px
}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-2);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:color .2s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(56,189,248,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.82rem
}
.footer-bottom i{color:var(--cyan);margin-right:6px}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:1px solid transparent;color:#fff;font-size:1.25rem;cursor:pointer;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  transition:transform .25s ease,box-shadow .3s ease,opacity .3s ease
}
.fab::before{
  content:"";position:absolute;inset:-1px;border-radius:19px;padding:1px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none
}
.fab:hover{transform:scale(1.08);box-shadow:0 0 34px rgba(6,182,212,.8);opacity:1}
.fab:active{transform:scale(.94)}
.fab .dot{position:absolute;top:6px;right:6px;width:11px;height:11px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:34px}
  .grid-4,.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cta-band .cta-actions{justify-content:flex-start}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost,.nav-actions .btn-primary{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .grid-3,.grid-2,.compare,.guarantee{grid-template-columns:1fr}
  .brand-text strong{font-size:.88rem}
  .coupon-sub{grid-template-columns:1fr}
}
@media (max-width:520px){
  .grid-4,.stat-strip,.post-list,.footer-grid{grid-template-columns:1fr}
  .step{flex-direction:column;gap:14px}
  .btn{width:100%;justify-content:center}
  .cat-hero-actions,.cta-band .cta-actions{flex-direction:column}
  .footer-bottom{flex-direction:column}
  .fab{bottom:88px;width:54px;height:54px}
}