/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#050B1A;
  --surface:rgba(12,22,44,.62);
  --surface-2:rgba(12,22,44,.86);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#60A5FA;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-sm:0 0 14px rgba(56,189,248,.28);
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --pad:72px;
  --shadow:0 18px 48px rgba(2,8,26,.55);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(37,99,235,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(56,189,248,.14), transparent 60%),
    var(--bg);
  color:var(--txt);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad) 0;position:relative}
.section--alt{background:linear-gradient(180deg, rgba(8,18,41,.72), rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg, rgba(3,7,18,.2), rgba(8,18,41,.85))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,3.4vw,38px);font-weight:800;letter-spacing:-.01em}
.section-sub{color:var(--muted);font-size:16px;max-width:760px;margin-top:14px}
.section-head{margin-bottom:38px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between}
.glass{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.glass-soft{
  background:linear-gradient(160deg, rgba(14,26,52,.72), rgba(6,12,28,.62));
  border:1px solid var(--line);
  border-radius:var(--r);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.glow-border{position:relative}
.glow-border::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.20);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB 0%,#38BDF8 100%);
  color:#04101F;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(1px) scale(.985)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-2);
  color:#E2F2FF;
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px);box-shadow:var(--glow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(3,7,18,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563EB,#38BDF8);
  color:#04101F;font-weight:800;font-size:14px;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#F1F7FF}
.logo-text small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.10em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  font-size:14px;font-weight:500;color:#C7D6EA;padding:9px 13px;border-radius:10px;
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.10)}
.nav-link.active{color:#8CE0FF;background:rgba(56,189,248,.14);box-shadow:inset 0 0 0 1px var(--line-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-text{
  font-size:14px;font-weight:600;color:#BBD7F5;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;transition:.2s ease;
}
.btn-text:hover{color:#fff;border-color:var(--line-2);background:rgba(56,189,248,.08)}
.btn-signup{
  font-size:14px;font-weight:700;color:#04101F;padding:11px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  box-shadow:0 0 18px rgba(56,189,248,.45);
  transition:transform .18s ease, box-shadow .25s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.btn-signup:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#9FE4FF;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#9FE4FF;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-nav{display:none}

/* ===== Hero ===== */
.hero{position:relative;min-height:640px;display:flex;align-items:flex-end;overflow:hidden;padding-top:120px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;filter:saturate(1.1)}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(3,7,18,.82) 0%, rgba(3,7,18,.55) 42%, rgba(3,7,18,.96) 100%),
    radial-gradient(760px 420px at 18% 78%, rgba(37,99,235,.38), transparent 68%);
}
.hero-inner{position:relative;z-index:3;padding-bottom:64px;max-width:940px}
.hero h1{
  font-size:clamp(27px,4.5vw,50px);font-weight:800;letter-spacing:-.02em;margin:20px 0 0;
  text-shadow:0 6px 30px rgba(2,8,26,.9);
}
.hero-sub{color:#B9CDE6;font-size:16.5px;margin-top:20px;max-width:760px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stat{
  padding:14px 20px;border-radius:var(--r);min-width:150px;
  background:rgba(9,18,38,.7);border:1px solid var(--line);backdrop-filter:blur(10px);
}
.hero-stat b{display:block;font-size:20px;font-weight:800;color:#8CE0FF;letter-spacing:-.01em}
.hero-stat span{font-size:12.5px;color:var(--muted)}
.hero-play{
  position:absolute;right:8%;top:50%;transform:translateY(-50%);
  width:88px;height:88px;border-radius:50%;border:1px solid var(--line-2);
  background:rgba(10,22,44,.6);backdrop-filter:blur(10px);
  display:grid;place-items:center;cursor:pointer;color:#B7E9FF;font-size:22px;
  box-shadow:var(--glow);transition:.25s ease;z-index:4;
}
.hero-play:hover{transform:translateY(-50%) scale(1.08);background:rgba(56,189,248,.2)}
.hero-play::after{
  content:"";position:absolute;inset:-12px;border-radius:50%;
  border:1px solid rgba(56,189,248,.28);animation:pulseRing 3.2s ease-out infinite;
}
@keyframes pulseRing{0%{transform:scale(.9);opacity:.9}100%{transform:scale(1.35);opacity:0}}

/* ===== Cards & grids ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{padding:26px;border-radius:var(--r-lg)}
.card h3{font-size:18.5px;margin-bottom:10px;color:#F1F8FF}
.card p{color:var(--muted);font-size:14.6px}
.card-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg, rgba(37,99,235,.35), rgba(56,189,248,.22));
  border:1px solid var(--line-2);color:#9FE4FF;font-weight:700;font-size:17px;margin-bottom:16px;
  box-shadow:var(--glow-sm);
}
.tag{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;color:#9FE4FF;background:rgba(56,189,248,.12);border:1px solid var(--line-2);
}
.tag--hot{color:#FDE68A;background:rgba(250,204,21,.12);border-color:rgba(250,204,21,.4)}

/* metric bar */
.metric-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--line)}
.metric-cell{background:rgba(6,13,29,.92);padding:26px 22px;transition:background .25s ease}
.metric-cell:hover{background:rgba(11,24,50,.95)}
.metric-cell b{display:block;font-size:26px;font-weight:800;color:#8CE0FF;letter-spacing:-.02em}
.metric-cell span{display:block;font-size:13.4px;color:var(--muted);margin-top:6px}

/* case cards */
.case-card{overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface-2);transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease}
.case-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:var(--glow)}
.case-card img{width:100%;height:168px;object-fit:cover;opacity:.9}
.case-body{padding:22px}
.case-body strong{display:block;font-size:15.5px;color:#EAF4FF;margin-bottom:4px}
.case-body em{display:block;font-style:normal;font-size:12.5px;color:var(--muted-2);letter-spacing:.04em;margin-bottom:12px}
.case-body p{font-size:14.4px;color:var(--muted)}

/* before after */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-col{padding:26px;border-radius:var(--r-lg);border:1px solid var(--line)}
.compare-col--old{background:rgba(19,20,26,.7)}
.compare-col--new{background:linear-gradient(160deg, rgba(37,99,235,.24), rgba(56,189,248,.10));border-color:var(--line-2);box-shadow:var(--glow)}
.compare-col h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.compare-list li{display:flex;gap:11px;font-size:14.5px;color:#C3D4E8;padding:9px 0;border-bottom:1px dashed rgba(148,163,184,.16)}
.compare-list li:last-child{border-bottom:none}
.compare-list li i{font-style:normal;color:var(--cyan);font-weight:700}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:st}
.step{padding:26px 22px;border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);position:relative}
.step::before{
  counter-increment:st;content:"0" counter(st);
  font-size:13px;font-weight:800;letter-spacing:.1em;color:#8CE0FF;display:block;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:9px}
.step p{font-size:14.2px;color:var(--muted)}

/* showcase */
.showcase{display:grid;grid-template-columns:1.15fr 1fr;gap:26px;align-items:center}
.showcase-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow)}
.showcase-media img{width:100%;height:420px;object-fit:cover}
.showcase-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(3,7,18,.05), rgba(3,7,18,.7))}
.showcase-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:999px;background:rgba(3,7,18,.72);border:1px solid var(--line-2);
  font-size:13px;color:#B7E9FF;backdrop-filter:blur(8px);
}
.feature-line{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.feature-line:last-child{border-bottom:none}
.feature-line b{color:#8CE0FF;font-size:13px;min-width:52px;padding-top:2px}
.feature-line p{font-size:14.6px;color:#C3D4E8}
.feature-line span{display:block;color:var(--muted);font-size:13.6px;margin-top:4px}

/* category wall */
.cat-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cat-card{
  display:block;padding:28px 24px;border-radius:var(--r-lg);
  background:linear-gradient(150deg, rgba(37,99,235,.22), rgba(6,13,29,.9));
  border:1px solid var(--line);transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:var(--glow)}
.cat-card h3{font-size:18px;margin:14px 0 8px}
.cat-card p{font-size:14.2px;color:var(--muted)}
.cat-card .more{display:inline-block;margin-top:16px;font-size:13.4px;font-weight:600;color:#8CE0FF}

/* offer ladder */
.ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.ladder-item{padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(6,13,29,.85);transition:.25s ease}
.ladder-item:hover{border-color:var(--line-2);box-shadow:var(--glow)}
.ladder-item b{display:block;font-size:23px;font-weight:800;color:#8CE0FF;margin-bottom:8px}
.ladder-item h3{font-size:16px;margin-bottom:10px}
.ladder-item p{font-size:14px;color:var(--muted)}
.ladder-item--top{border-color:rgba(250,204,21,.42);background:linear-gradient(160deg, rgba(250,204,21,.14), rgba(6,13,29,.92))}

/* pay badges */
.pay-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.pay-badge{
  padding:11px 18px;border-radius:12px;font-size:13.6px;font-weight:600;color:#DCEBFF;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);
}

/* rating wall */
.rating-summary{display:flex;flex-wrap:wrap;align-items:center;gap:22px;padding:24px 26px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface)}
.rating-score{font-size:44px;font-weight:800;color:#8CE0FF;line-height:1}
.stars{color:#FACC15;letter-spacing:3px;font-size:15px}
.review{padding:22px;border-radius:var(--r);border:1px solid var(--line);background:rgba(6,13,29,.78)}
.review p{font-size:14.6px;color:#C9D9EC}
.review footer{margin-top:14px;font-size:13px;color:var(--muted-2)}

/* FAQ */
.qa-list{display:grid;gap:16px}
.qa{padding:24px 26px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(6,13,29,.8)}
.qa h3{font-size:16.5px;color:#EAF4FF;margin-bottom:10px}
.qa p{font-size:14.6px;color:var(--muted)}

/* CMS posts */
.posts-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:26px;align-items:start}
.post-item{
  display:block;padding:22px 24px;border-radius:var(--r);border:1px solid var(--line);
  background:rgba(6,13,29,.78);transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.post-item + .post-item{margin-top:14px}
.post-item:hover{transform:translateX(4px);border-color:var(--line-2);box-shadow:var(--glow-sm)}
.post-item h3{font-size:16.5px;margin:10px 0 8px;color:#EAF4FF}
.post-item p{font-size:14.2px;color:var(--muted)}
.post-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12.4px;color:var(--muted-2);margin-top:12px}
.side-panel{padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface)}
.side-panel h3{font-size:16px;margin-bottom:16px;color:#EAF4FF}
.mini-item{display:block;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.2px;color:#C3D4E8}
.mini-item:last-child{border-bottom:none}
.mini-item:hover{color:#8CE0FF}
.empty{font-size:14.4px;color:var(--muted);padding:22px;border:1px dashed var(--line-2);border-radius:var(--r)}

/* changelog */
.log{display:grid;gap:14px}
.log-item{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:20px 24px;border-radius:var(--r);border:1px solid var(--line);background:rgba(6,13,29,.7)}
.log-item b{font-size:13px;color:#8CE0FF;letter-spacing:.06em;text-transform:uppercase}
.log-item p{font-size:14.4px;color:var(--muted)}

/* form */
.lead-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:26px;align-items:center}
.lead-form{padding:30px;border-radius:var(--r-lg);border:1px solid var(--line-2);background:linear-gradient(160deg, rgba(37,99,235,.18), rgba(6,13,29,.92));box-shadow:var(--glow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:#BBD7F5;margin-bottom:7px}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:12px;background:rgba(3,7,18,.7);
  border:1px solid var(--line-2);color:#EAF4FF;font-size:14.6px;transition:.2s ease;
}
.field input::placeholder{color:#64748B}
.field input:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.privacy{font-size:12.6px;color:var(--muted);margin-top:14px;line-height:1.6}

/* footer */
.site-footer{background:linear-gradient(180deg, rgba(3,7,18,.9), #01040D);border-top:1px solid var(--line);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer-grid h4{font-size:14px;color:#EAF4FF;margin-bottom:16px;letter-spacing:.02em}
.footer-grid p{font-size:14px;color:var(--muted)}
.footer-links a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .2s ease}
.footer-links a:hover{color:#8CE0FF}
.footer-bottom{margin-top:38px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:var(--muted)}
.age-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:10px;border:1px solid var(--line-2);font-size:12.6px;color:#BBD7F5;background:rgba(56,189,248,.07)}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:flex;align-items:center;gap:10px;padding:12px 18px 12px 14px;
  border-radius:999px;background:rgba(7,12,26,.82);backdrop-filter:blur(14px);
  border:1px solid transparent;color:#CDEBFF;font-size:13.6px;font-weight:600;
  background-image:linear-gradient(rgba(7,12,26,.86),rgba(7,12,26,.86)),linear-gradient(120deg,#2563EB,#38BDF8);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  opacity:.8;transition:opacity .25s ease, transform .25s ease, box-shadow .25s ease;
}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 32px rgba(56,189,248,.75)}
.fab:active{transform:scale(.96)}
.fab-dot{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(130deg,#2563EB,#38BDF8);color:#03101F;font-weight:800;font-size:12px}
.fab-alert{position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;background:#F43F5E;box-shadow:0 0 10px #F43F5E;animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.28}}

@media (max-width:1024px){
  :root{--pad:56px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .mobile-nav{display:none;border-top:1px solid var(--line);background:rgba(3,7,18,.96)}
  .mobile-nav.open{display:block}
  .mobile-nav a{display:block;padding:14px 20px;font-size:15px;color:#C7D6EA;border-bottom:1px solid var(--line)}
  .mobile-nav a.active{color:#8CE0FF;background:rgba(56,189,248,.10)}
  .header-inner{height:66px}
  .logo-text{font-size:14.5px}
  .grid-4,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.cat-wall,.ladder{grid-template-columns:repeat(2,minmax(0,1fr))}
  .showcase{grid-template-columns:1fr}
  .posts-layout{grid-template-columns:1fr}
  .lead-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-play{display:none}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .grid-2,.grid-3,.grid-4,.steps,.cat-wall,.ladder,.compare{grid-template-columns:1fr}
  .metric-bar{grid-template-columns:1fr}
  .hero{min-height:560px;padding-top:104px}
  .hero-stats{gap:10px}
  .hero-stat{flex:1 1 calc(50% - 10px);min-width:0}
  .showcase-media img{height:280px}
  .log-item{grid-template-columns:1fr;gap:8px}
  .btn-text{padding:9px 8px;font-size:13px}
  .btn-signup{padding:10px 15px;font-size:13px}
  .logo-text small{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:24px}
  .hero-sub{font-size:15px}
  .btn{padding:12px 20px;font-size:14px}
  .hero-cta .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .fab{left:12px;bottom:80px;padding:11px 15px 11px 12px;font-size:12.6px}
  .logo-text{font-size:13px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#050B1A;
  --surface:rgba(12,22,44,.62);
  --surface-2:rgba(12,22,44,.86);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#60A5FA;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --lime:#A3E635;
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-sm:0 0 14px rgba(56,189,248,.28);
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --pad:72px;
  --shadow:0 18px 48px rgba(2,8,26,.55);
}
@media (max-width:1024px){:root{--pad:56px}}
@media (max-width:520px){:root{--pad:44px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(37,99,235,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(56,189,248,.14), transparent 60%),
    var(--bg);
  color:var(--txt);
  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,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(56,189,248,.35);color:#fff}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad) 0;position:relative}
.section--alt{background:linear-gradient(180deg, rgba(8,18,41,.72), rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg, rgba(3,7,18,.25), rgba(8,18,41,.85))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(23px,3.2vw,36px);font-weight:800;letter-spacing:-.01em}
.section-sub{color:var(--muted);font-size:16px;max-width:800px;margin-top:14px}
.section-head{margin-bottom:38px;max-width:860px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;max-width:none}
.section-head--split .section-sub{max-width:620px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line-2);
  background:rgba(56,189,248,.10);color:#9FE4FF;letter-spacing:.04em;
}
.tag--lime{border-color:rgba(163,230,53,.42);background:rgba(163,230,53,.12);color:#D7F99A}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB 0%,#38BDF8 100%);
  color:#04101F;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(1px) scale(.985)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-2);
  color:#E2F2FF;
}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px);box-shadow:var(--glow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(3,7,18,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563EB,#38BDF8);
  color:#04101F;font-weight:800;font-size:14px;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#F1F7FF;line-height:1.2}
.logo-text small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.10em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  font-size:14px;font-weight:500;color:#C7D6EA;padding:9px 13px;border-radius:10px;
  transition:color .2s ease, background .2s ease, box-shadow .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.10)}
.nav-link.active{color:#8CE0FF;background:rgba(56,189,248,.14);box-shadow:inset 0 0 0 1px var(--line-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-text{
  font-size:14px;font-weight:600;color:#BBD7F5;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;transition:.2s ease;
}
.btn-text:hover{color:#fff;border-color:var(--line-2);background:rgba(56,189,248,.08)}
.btn-signup{
  font-size:14px;font-weight:700;color:#04101F;padding:11px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  box-shadow:0 0 18px rgba(56,189,248,.45);
  transition:transform .18s ease, box-shadow .25s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.btn-signup:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#9FE4FF;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#9FE4FF;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-nav{display:none}
.mobile-nav.open{display:block;padding:6px 0 18px;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:12px 6px;font-size:15px;color:#CFE0F2;border-radius:10px}
.mobile-nav a:hover{background:rgba(56,189,248,.08);color:#fff}
.mobile-nav a.active{color:#8CE0FF;background:rgba(56,189,248,.12)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:132px 0 var(--pad)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;filter:saturate(1.08)}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(3,7,18,.88) 0%, rgba(3,7,18,.66) 45%, rgba(3,7,18,.97) 100%),
    radial-gradient(760px 460px at 18% 42%, rgba(37,99,235,.36), transparent 68%);
}
.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center}
.hero h1{font-size:clamp(26px,4.2vw,46px);font-weight:800;letter-spacing:-.02em;margin-top:18px;text-shadow:0 6px 30px rgba(2,8,26,.9)}
.hero-sub{color:#B9CDE6;font-size:16.5px;margin-top:20px;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:grid;gap:10px;margin-top:28px;max-width:600px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;color:#C7D6EA;font-size:14.5px}
.hero-points li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:8px;border-radius:50%;
  background:linear-gradient(140deg,#2563EB,#38BDF8);box-shadow:0 0 10px rgba(56,189,248,.8);
}
.hero-stack{position:relative}
.stack-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.stack-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 30px rgba(56,189,248,.28)}
.stack-card img{border-radius:var(--r);width:100%;aspect-ratio:16/10;object-fit:cover}
.stack-card h3{font-size:16px;font-weight:700;margin-top:14px}
.stack-card p{font-size:13.5px;color:var(--muted);margin-top:8px}
.stack-side{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.stack-side .stack-card{padding:13px}
.stack-side .stack-card img{aspect-ratio:4/3;border-radius:var(--r-sm)}
.stack-side .stack-card strong{display:block;font-size:20px;font-weight:800;color:#8CE0FF;margin-top:12px}
.stack-side .stack-card span{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.stack-offset{transform:translateY(20px)}
.stack-offset:hover{transform:translateY(14px)}

/* ===== Stats strip ===== */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:26px;border-radius:var(--r-lg);
  background:var(--surface-2);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.stat-item{border-left:1px solid var(--line);padding-left:18px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(20px,2.4vw,28px);font-weight:800;color:#8CE0FF;letter-spacing:-.02em}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}

/* ===== Grids & cards ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 26px rgba(56,189,248,.22)}
.card h3{font-size:18px;font-weight:700;margin-top:16px}
.card p{color:var(--muted);font-size:14.5px;margin-top:10px}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg, rgba(37,99,235,.35), rgba(56,189,248,.22));
  border:1px solid var(--line-2);font-size:19px;color:#9FE4FF;font-weight:800;
}
.card-media{border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r-lg);
  background:linear-gradient(180deg, rgba(12,22,44,.78), rgba(5,11,26,.72));
  border:1px solid var(--line);
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:13px;font-weight:800;letter-spacing:.12em;color:#04101F;
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,#2563EB,#38BDF8);box-shadow:0 0 16px rgba(56,189,248,.45);
}
.step h3{font-size:17px;font-weight:700;margin-top:16px}
.step p{color:var(--muted);font-size:14.5px;margin-top:10px}

/* ===== Table ===== */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface-2);box-shadow:var(--shadow);
}
table{width:100%;border-collapse:collapse;min-width:560px}
thead th{
  text-align:left;font-size:12.5px;letter-spacing:.10em;text-transform:uppercase;
  color:#9FE4FF;padding:16px 20px;background:rgba(37,99,235,.16);border-bottom:1px solid var(--line);
}
tbody td{padding:16px 20px;font-size:14.5px;color:#D6E4F5;border-bottom:1px solid rgba(56,189,248,.09)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(56,189,248,.06)}
td strong{color:#fff;font-weight:600}
.scroll-x{overflow-x:auto}

/* ===== Checklist ===== */
.check-list{display:grid;gap:14px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r);
  background:rgba(12,22,44,.55);border:1px solid var(--line);
}
.check-list b{display:block;font-size:15.5px;font-weight:700}
.check-list span{display:block;font-size:14px;color:var(--muted);margin-top:6px}
.check-mark{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(163,230,53,.14);border:1px solid rgba(163,230,53,.42);color:#D7F99A;
  font-size:13px;font-weight:800;
}

/* ===== Scenario / split ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scenario{padding:20px 0;border-bottom:1px dashed rgba(56,189,248,.22)}
.scenario:last-child{border-bottom:0}
.scenario h3{font-size:16.5px;font-weight:700}
.scenario p{color:var(--muted);font-size:14.5px;margin-top:8px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);background:var(--surface);
  overflow:hidden;transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-2);box-shadow:var(--glow-sm)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:600;color:var(--cyan);flex:none}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:14.5px}

/* ===== Channel / category matrix ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel-card{
  display:block;padding:26px;border-radius:var(--r-lg);
  background:linear-gradient(180deg, rgba(12,22,44,.82), rgba(5,11,26,.7));
  border:1px solid var(--line);transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 26px rgba(56,189,248,.24)}
.channel-card h3{font-size:17.5px;font-weight:700;margin-top:14px}
.channel-card p{color:var(--muted);font-size:14.5px;margin-top:10px}
.channel-more{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13.5px;font-weight:600;color:#8CE0FF}

/* ===== CTA band ===== */
.cta-band{
  border-radius:var(--r-lg);border:1px solid var(--line-2);
  background:
    radial-gradient(520px 260px at 12% 18%, rgba(37,99,235,.34), transparent 66%),
    linear-gradient(180deg, rgba(12,22,44,.9), rgba(5,11,26,.92));
  padding:44px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800}
.cta-band p{color:var(--muted);margin-top:14px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.pay-row{display:flex;flex-wrap:wrap;gap:10px}
.pay-badge{
  font-size:12.5px;font-weight:600;color:#CFE8FF;padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);letter-spacing:.02em;
}

/* ===== FAB ===== */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:999px;min-height:56px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
    linear-gradient(120deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  font-size:13.5px;font-weight:700;color:#E6FBFF;
  opacity:.78;transition:opacity .25s ease, transform .25s ease, box-shadow .25s ease;
}
.fab-support:hover{opacity:1;transform:translateY(-3px) scale(1.03);box-shadow:0 0 32px rgba(6,182,212,.72)}
.fab-support:active{transform:translateY(1px) scale(.97)}
.fab-dot{
  position:absolute;top:-4px;right:-4px;width:14px;height:14px;border-radius:50%;
  background:#EC4899;box-shadow:0 0 12px rgba(236,72,153,.9);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.65}}
.fab-glyph{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(130deg,#A3E635,#06B6D4);color:#04101F;font-size:13px;font-weight:800;
  transition:transform .45s ease;
}
.fab-support:hover .fab-glyph{transform:rotate(360deg)}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(5,11,26,.6), rgba(3,7,18,.98));
  padding:64px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer p{color:var(--muted);font-size:14px;max-width:380px}
.footer-links h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#9FE4FF;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;color:#B9CDE6;padding:6px 0;transition:color .2s ease, transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;
}
.age-badge{
  font-size:12.5px;font-weight:600;color:#FFD9D9;padding:6px 14px;border-radius:999px;
  background:rgba(220,38,38,.14);border:1px solid rgba(220,38,38,.42);
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .hero{padding-top:112px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .stats-strip{grid-template-columns:repeat(2,1fr);gap:22px}
  .grid-3,.grid-4,.steps,.channel-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:34px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .header-inner{height:66px}
  .logo-text{font-size:14.5px}
  .btn-text,.btn-signup{padding:9px 14px;font-size:13px}
}
@media (max-width:520px){
  .grid-3,.grid-4,.steps,.channel-grid,.grid-2{grid-template-columns:1fr}
  .stats-strip{grid-template-columns:1fr;padding:20px}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:14px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .stack-side{grid-template-columns:1fr}
  .stack-offset{transform:none}
  .stack-offset:hover{transform:translateY(-4px)}
  .hero-cta .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .fab-support{left:12px;bottom:84px;padding:10px 14px;font-size:12.5px}
  .logo-text small{display:none}
  .btn-text{display:none}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#050B1A;
  --surface:rgba(12,22,44,.62);
  --surface-2:rgba(12,22,44,.86);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#60A5FA;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-sm:0 0 14px rgba(56,189,248,.28);
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --pad:72px;
  --shadow:0 18px 48px rgba(2,8,26,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(37,99,235,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(56,189,248,.14), transparent 60%),
    var(--bg);
  color:var(--txt);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad) 0;position:relative}
.section--alt{background:linear-gradient(180deg, rgba(8,18,41,.72), rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg, rgba(3,7,18,.2), rgba(8,18,41,.85))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,3.4vw,38px);font-weight:800;letter-spacing:-.01em}
.section-sub{color:var(--muted);font-size:16px;max-width:760px;margin-top:14px}
.section-head{margin-bottom:38px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB 0%,#38BDF8 100%);
  color:#04101F;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(1px) scale(.985)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#E2F2FF}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px);box-shadow:var(--glow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(3,7,18,.74);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;min-width:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(140deg,#2563EB,#38BDF8);
  color:#04101F;font-weight:800;font-size:14px;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#F1F7FF;min-width:0}
.logo-text small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.10em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  font-size:14px;font-weight:500;color:#C7D6EA;padding:9px 13px;border-radius:10px;
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.10)}
.nav-link.active{color:#8CE0FF;background:rgba(56,189,248,.14);box-shadow:inset 0 0 0 1px var(--line-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;margin-left:12px}
.btn-text{
  font-size:14px;font-weight:600;color:#BBD7F5;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;transition:.2s ease;
}
.btn-text:hover{color:#fff;border-color:var(--line-2);background:rgba(56,189,248,.08)}
.btn-signup{
  font-size:14px;font-weight:700;color:#04101F;padding:11px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  box-shadow:0 0 18px rgba(56,189,248,.45);
  transition:transform .18s ease, box-shadow .25s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.btn-signup:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#9FE4FF;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#9FE4FF;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-nav{
  display:none;position:absolute;top:100%;left:0;right:0;
  flex-direction:column;gap:4px;padding:14px 20px 20px;
  background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mobile-nav.open{display:flex}

/* ===== Article hero ===== */
.art-hero{position:relative;padding:132px 0 56px;overflow:hidden;border-bottom:1px solid var(--line)}
.art-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30;filter:saturate(1.05)}
.art-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(3,7,18,.94) 0%, rgba(3,7,18,.72) 46%, rgba(3,7,18,.99) 100%),
    radial-gradient(720px 400px at 16% 62%, rgba(37,99,235,.34), transparent 70%);
}
.art-hero-inner{position:relative;z-index:2;max-width:920px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:#9FD8FF;transition:color .2s ease}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.art-hero h1{font-size:clamp(26px,4.3vw,46px);font-weight:800;letter-spacing:-.022em;margin-top:18px;text-shadow:0 8px 34px rgba(2,8,26,.9)}
.art-lead{color:#B9CDE6;font-size:16.6px;margin-top:20px;max-width:760px}
.art-meta{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:26px}
.art-meta span{
  font-size:12.8px;font-weight:600;color:#CFE8FF;
  background:rgba(9,18,38,.72);border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;
}

/* ===== Article body ===== */
.art-body{padding:56px 0 0}
.art-content{max-width:880px}
.art-content h2{font-size:clamp(21px,2.7vw,30px);font-weight:800;letter-spacing:-.012em;margin:44px 0 14px;color:#F4F9FF}
.art-content h2:first-child{margin-top:0}
.art-content h3{font-size:clamp(18px,2.1vw,23px);font-weight:700;margin:30px 0 12px;color:#DCEBFF}
.art-content p{color:#C3D4E8;font-size:16.4px;line-height:1.7;margin:0 0 16px}
.art-content ul,.art-content ol{margin:0 0 20px;padding-left:22px}
.art-content ul{list-style:disc}
.art-content ol{list-style:decimal}
.art-content li{color:#C3D4E8;font-size:16.2px;line-height:1.7;margin-bottom:9px}
.art-content li::marker{color:var(--cyan)}
.art-content strong{color:#F8FAFC}
.art-content a{color:#7DD3FC;text-decoration:underline;text-underline-offset:3px}
.art-content a:hover{color:#BAE6FD}
.art-content img{border-radius:var(--r);border:1px solid var(--line);margin:22px 0;box-shadow:var(--shadow)}
.art-content blockquote{
  margin:0 0 22px;padding:16px 22px;border-left:3px solid var(--cyan);
  background:rgba(56,189,248,.07);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#DCEBFF;
}
.art-content blockquote p:last-child{margin-bottom:0}
.art-content table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;overflow:hidden;border-radius:var(--r-sm)}
.art-content th,.art-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;color:#C3D4E8}
.art-content th{background:rgba(56,189,248,.10);color:#E7F4FF;font-weight:700}
.art-content hr{border:none;border-top:1px solid var(--line);margin:34px 0}
.art-empty{
  max-width:880px;padding:40px 32px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.art-empty h2{font-size:24px;font-weight:800;margin-bottom:12px;color:#F4F9FF}
.art-empty p{color:var(--muted);margin-bottom:20px}

/* ===== Spec grid ===== */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.spec-card{
  padding:24px 22px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .26s ease;
}
.spec-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow-sm)}
.spec-value{font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.02em;color:#8CE0FF}
.spec-label{font-size:13px;font-weight:700;letter-spacing:.10em;text-transform:uppercase;color:#C7D6EA;margin-top:10px}
.spec-card p{color:var(--muted);font-size:14.4px;margin:10px 0 0}

/* ===== Steps ===== */
.step-list{display:grid;gap:16px}
.step-item{
  display:flex;gap:18px;align-items:flex-start;padding:22px 24px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .26s ease;
}
.step-item:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--glow-sm)}
.step-num{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#04101F;
  background:linear-gradient(140deg,#2563EB,#38BDF8);box-shadow:0 0 16px rgba(56,189,248,.35);
}
.step-body h3{font-size:18px;font-weight:700;margin-bottom:8px;color:#EAF4FF}
.step-body p{color:var(--muted);font-size:15px;margin:0}

/* ===== Tips ===== */
.tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tip-card{
  padding:26px 24px;border-radius:var(--r);background:var(--surface);
  border:1px solid var(--line);transition:transform .22s ease,border-color .22s ease,box-shadow .26s ease;
}
.tip-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow-sm)}
.tip-tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:#04101F;background:linear-gradient(120deg,#38BDF8,#2563EB);
  border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.tip-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:#EAF4FF}
.tip-card p{color:var(--muted);font-size:14.6px;margin:0}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden;transition:border-color .22s ease,box-shadow .26s ease}
.faq-item[open]{border-color:var(--line-2);box-shadow:var(--glow-sm)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-weight:600;font-size:16px;color:#EAF4FF;
  display:flex;justify-content:space-between;gap:16px;align-items:center;transition:background .2s ease;
}
.faq-item summary:hover{background:rgba(56,189,248,.06)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:700;color:var(--cyan);flex-shrink:0}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:15px;margin:0}

/* ===== Category matrix ===== */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  display:block;padding:28px 26px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(12,22,44,.9),rgba(8,18,41,.55));
  border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,box-shadow .28s ease;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:var(--glow)}
.cat-index{font-size:12px;font-weight:800;letter-spacing:.20em;color:var(--cyan)}
.cat-card h3{font-size:20px;font-weight:700;margin:14px 0 10px;color:#F1F7FF}
.cat-card p{color:var(--muted);font-size:14.6px;margin:0 0 18px}
.cat-more{font-size:14px;font-weight:600;color:#8CE0FF}

/* ===== CTA ===== */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:48px 44px;
  background:linear-gradient(125deg,rgba(37,99,235,.30),rgba(56,189,248,.14));
  border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.cta-panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(56,189,248,.30), transparent 68%);
}
.cta-panel h2{font-size:clamp(22px,3vw,32px);font-weight:800;letter-spacing:-.015em}
.cta-panel p{color:#C6DAF0;font-size:16px;max-width:660px;margin-top:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(130deg,#38BDF8,#A3E635);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  opacity:.78;transition:opacity .22s ease,transform .22s ease,box-shadow .28s ease;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(56,189,248,.75)}
.fab:active{transform:scale(.95)}
.fab svg{width:24px;height:24px;stroke:#8CE0FF;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.fab-dot{
  position:absolute;top:-3px;right:-3px;width:13px;height:13px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px #030712;animation:fabPulse 1.8s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}

/* ===== Footer ===== */
.site-footer{
  background:linear-gradient(180deg, rgba(5,11,26,.9), rgba(3,7,18,1));
  border-top:1px solid var(--line);padding:58px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-grid p{color:var(--muted);font-size:14.4px;margin:0}
.footer-links h4{font-size:12.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#BFE4FF;margin:0 0 14px}
.footer-links a{display:block;font-size:14.2px;color:var(--muted);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.pay-row{display:flex;flex-wrap:wrap;gap:8px}
.pay-badge{
  font-size:12px;font-weight:600;color:#CFE8FF;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:5px 12px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13.4px;
}
.age-badge{border:1px solid var(--line-2);border-radius:999px;padding:5px 13px;color:#9FD8FF;font-weight:600;font-size:12.5px}

/* ===== Responsive ===== */
@media (max-width:1060px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-actions{margin-left:auto}
}
@media (max-width:1024px){
  :root{--pad:58px}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .tip-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--pad:48px}
  .header-inner{height:66px;gap:12px}
  .art-hero{padding:118px 0 44px}
  .cta-panel{padding:34px 24px}
  .art-empty{padding:30px 22px}
}
@media (max-width:600px){
  .spec-grid,.tip-grid,.cat-grid,.footer-grid{grid-template-columns:1fr}
  .logo-text{font-size:13.5px}
  .logo-text small{display:none}
  .logo-mark{width:36px;height:36px;font-size:13px}
  .btn-text{padding:8px 9px;font-size:12.6px}
  .btn-signup{padding:9px 14px;font-size:12.6px}
  .step-item{flex-direction:column;gap:12px;padding:20px}
  .cta-actions .btn{width:100%}
  .fab{bottom:88px;width:52px;height:52px}
}
@media (max-width:400px){
  .btn-text{display:none}
  .logo-text{font-size:12.5px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#050B1A;
  --surface:rgba(12,22,44,.62);
  --surface-2:rgba(12,22,44,.86);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#60A5FA;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --lime:#A3E635;
  --gold:#FBBF24;
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-sm:0 0 14px rgba(56,189,248,.28);
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --pad:72px;
  --shadow:0 18px 48px rgba(2,8,26,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(37,99,235,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(56,189,248,.14), transparent 60%),
    var(--bg);
  color:var(--txt);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad) 0;position:relative}
.section--alt{background:linear-gradient(180deg, rgba(8,18,41,.72), rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg, rgba(3,7,18,.2), rgba(8,18,41,.85))}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,3.4vw,38px);font-weight:800;letter-spacing:-.01em}
.section-sub{color:var(--muted);font-size:16px;max-width:760px;margin-top:14px}
.section-head{margin-bottom:38px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB 0%,#38BDF8 100%);
  color:#04101F;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(1px) scale(.985)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#E2F2FF}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px);box-shadow:var(--glow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(3,7,18,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563EB,#38BDF8);
  color:#04101F;font-weight:800;font-size:14px;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#F1F7FF;line-height:1.15}
.logo-text small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.10em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  font-size:14px;font-weight:500;color:#C7D6EA;padding:9px 13px;border-radius:10px;
  transition:color .2s ease, background .2s ease, box-shadow .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.10)}
.nav-link.active{color:#8CE0FF;background:rgba(56,189,248,.14);box-shadow:inset 0 0 0 1px var(--line-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-text{
  font-size:14px;font-weight:600;color:#BBD7F5;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;transition:.2s ease;
}
.btn-text:hover{color:#fff;border-color:var(--line-2);background:rgba(56,189,248,.08)}
.btn-signup{
  font-size:14px;font-weight:700;color:#04101F;padding:11px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  box-shadow:0 0 18px rgba(56,189,248,.45);
  transition:transform .18s ease, box-shadow .25s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.btn-signup:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#9FE4FF;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#9FE4FF;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-nav{display:none}
.mobile-nav.open{display:flex;flex-direction:column;gap:4px;padding:12px 20px 20px;border-top:1px solid var(--line);background:rgba(3,7,18,.96)}
.mobile-nav .nav-link{padding:12px 14px}

/* ===== Hero ===== */
.hero{position:relative;display:flex;align-items:flex-end;overflow:hidden;padding-top:132px;padding-bottom:66px;min-height:660px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.52;filter:saturate(1.08)}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(3,7,18,.86) 0%, rgba(3,7,18,.55) 42%, rgba(3,7,18,.97) 100%),
    radial-gradient(760px 420px at 16% 78%, rgba(37,99,235,.40), transparent 68%);
}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:end;width:100%}
.hero h1{
  font-size:clamp(26px,4.3vw,46px);font-weight:800;letter-spacing:-.02em;margin:20px 0 0;
  text-shadow:0 6px 30px rgba(2,8,26,.9);
}
.hero-sub{color:#B9CDE6;font-size:16.5px;margin-top:20px;max-width:680px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stat{
  padding:14px 20px;border-radius:var(--r);min-width:150px;
  background:rgba(9,18,38,.72);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.hero-stat b{display:block;font-size:20px;font-weight:800;color:#8CE0FF;letter-spacing:-.01em}
.hero-stat span{font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.hero-panel{
  background:linear-gradient(160deg, rgba(12,22,44,.88), rgba(6,14,32,.92));
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:26px;backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.hero-panel h3{font-size:17px;font-weight:700;margin-bottom:6px}
.hero-panel p{font-size:13.5px;color:var(--muted)}
.code-box{
  margin-top:18px;border-radius:var(--r);padding:18px;text-align:center;
  background:radial-gradient(420px 160px at 50% 0%, rgba(56,189,248,.22), transparent 70%), rgba(3,10,24,.85);
  border:1px dashed var(--line-2);
}
.code-box strong{display:block;font-size:30px;font-weight:800;letter-spacing:.14em;color:#A3E635;text-shadow:0 0 22px rgba(163,230,53,.45)}
.code-box span{font-size:12.5px;color:var(--muted);display:block;margin-top:6px}
.panel-list{margin-top:20px;display:grid;gap:10px}
.panel-list li{display:flex;gap:10px;font-size:13.5px;color:#C9DAEE}
.panel-list li::before{content:"◆";color:var(--cyan);font-size:10px;line-height:1.9}

/* ===== Layout helpers ===== */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.split--reverse .split-media{order:2}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.media-frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;background:rgba(6,14,32,.7);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:13px;color:#D7E6F7;
  background:linear-gradient(180deg, transparent, rgba(3,7,18,.92));
}

/* ===== Cards ===== */
.tile{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;backdrop-filter:blur(12px);
  transition:transform .22s ease, border-color .22s ease, box-shadow .25s ease;
}
.tile:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 18px 44px rgba(2,8,26,.6)}
.tile h3{font-size:17.5px;font-weight:700;margin-bottom:10px}
.tile p{font-size:14.5px;color:var(--muted)}
.tile .tag{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:#A3E635;background:rgba(163,230,53,.10);border:1px solid rgba(163,230,53,.32);
  border-radius:999px;padding:4px 10px;margin-bottom:14px;
}
.tile .tag--cyan{color:#8CE0FF;background:rgba(56,189,248,.10);border-color:var(--line-2)}
.tile .tag--gold{color:#FCD34D;background:rgba(251,191,36,.10);border-color:rgba(251,191,36,.32)}

.score-list{margin-top:16px;display:grid;gap:10px}
.score-list li{display:flex;gap:10px;font-size:14px;color:#C4D5E9}
.score-list li::before{content:"✓";color:var(--lime);font-weight:700}

/* ===== Value list ===== */
.value-list{display:grid;gap:16px;margin-top:26px}
.value-item{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start}
.value-item .idx{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#04101F;
  background:linear-gradient(140deg,#38BDF8,#A3E635);
  box-shadow:var(--glow-sm);
}
.value-item h4{font-size:16px;font-weight:700}
.value-item p{font-size:14.5px;color:var(--muted);margin-top:4px}

/* ===== Tiers ===== */
.tier-table{display:grid;gap:12px;margin-top:8px}
.tier-row{
  display:grid;grid-template-columns:1.1fr 1.4fr 1.1fr;gap:18px;align-items:center;
  padding:20px 22px;border-radius:var(--r);
  background:rgba(9,18,38,.62);border:1px solid var(--line);
  transition:border-color .22s ease, background .22s ease, transform .22s ease;
}
.tier-row:hover{border-color:var(--line-2);background:rgba(12,26,52,.78);transform:translateX(4px)}
.tier-row .amount{font-size:19px;font-weight:800;color:#8CE0FF;letter-spacing:-.01em}
.tier-row .benefit{font-size:14.5px;color:#CBD9EC}
.tier-row .note{font-size:13px;color:var(--muted);text-align:right}
.tier-row.is-hot{border-color:rgba(163,230,53,.42);box-shadow:0 0 24px rgba(163,230,53,.14)}
.tier-head{
  display:grid;grid-template-columns:1.1fr 1.4fr 1.1fr;gap:18px;padding:0 22px 6px;
  font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
}

/* ===== Scenarios ===== */
.scene{
  border-left:2px solid var(--line-2);padding:4px 0 4px 20px;
  transition:border-color .22s ease, transform .22s ease;
}
.scene:hover{border-color:var(--lime);transform:translateX(4px)}
.scene h3{font-size:16.5px;font-weight:700}
.scene p{font-size:14.5px;color:var(--muted);margin-top:8px}

/* ===== Steps ===== */
.steps{display:grid;gap:14px;margin-top:8px}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--r);
  background:linear-gradient(140deg, rgba(12,22,44,.72), rgba(6,14,32,.6));
  border:1px solid var(--line);
}
.step .n{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#8CE0FF;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);
}
.step h4{font-size:16.5px;font-weight:700}
.step p{font-size:14.5px;color:var(--muted);margin-top:6px}

/* ===== Pay row ===== */
.pay-row{display:flex;flex-wrap:wrap;gap:10px}
.pay-badge{
  font-size:12.5px;font-weight:600;color:#CFE3F7;
  border:1px solid var(--line-2);background:rgba(56,189,248,.07);
  border-radius:999px;padding:7px 14px;
}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.metric{
  padding:20px;border-radius:var(--r);background:rgba(9,18,38,.66);border:1px solid var(--line);
}
.metric b{display:block;font-size:24px;font-weight:800;color:#A3E635;letter-spacing:-.02em}
.metric span{font-size:13px;color:var(--muted)}

/* ===== Quotes ===== */
.quote{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  display:flex;flex-direction:column;gap:14px;
}
.quote p{font-size:14.5px;color:#D3E2F3}
.quote .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.quote .avatar{
  width:42px;height:42px;border-radius:50%;overflow:hidden;border:1px solid var(--line-2);flex-shrink:0;
}
.quote .avatar img{width:100%;height:100%;object-fit:cover}
.quote .who b{display:block;font-size:14px;font-weight:700}
.quote .who span{font-size:12.5px;color:var(--muted)}
.stars{color:#FCD34D;font-size:13px;letter-spacing:2px}

/* ===== FAQ ===== */
.faq{display:grid;gap:12px;margin-top:10px}
.faq details{
  border:1px solid var(--line);border-radius:var(--r);background:rgba(9,18,38,.58);
  padding:18px 22px;transition:border-color .2s ease, background .2s ease;
}
.faq details[open]{border-color:var(--line-2);background:rgba(12,26,52,.78)}
.faq summary{
  cursor:pointer;font-size:16px;font-weight:600;color:#EAF4FF;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:20px;font-weight:700;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .answer{font-size:14.5px;color:var(--muted);margin-top:12px}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-2);
  background:linear-gradient(120deg, rgba(37,99,235,.28), rgba(56,189,248,.14) 48%, rgba(3,7,18,.9));
  padding:44px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(56,189,248,.32), transparent 68%);
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800;position:relative;z-index:2}
.cta-band p{color:#C6D8EC;font-size:15.5px;margin-top:14px;max-width:660px;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;position:relative;z-index:2}
.legal-note{font-size:12.5px;color:var(--muted);margin-top:18px;position:relative;z-index:2}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(120deg,#A3E635,#38BDF8);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.42);
  opacity:.78;
  animation:fabPulse 2.6s ease-in-out infinite;
  transition:opacity .2s ease, box-shadow .25s ease, transform .2s ease;
}
.fab:hover{opacity:1;box-shadow:0 0 32px rgba(6,182,212,.7);transform:translateY(-2px)}
.fab:active{transform:translateY(1px) scale(.97)}
.fab .fab-word{
  font-size:13px;font-weight:800;letter-spacing:.1em;
  background:linear-gradient(120deg,#A3E635,#38BDF8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.fab .dot{
  width:9px;height:9px;border-radius:50%;background:#F43F5E;
  box-shadow:0 0 10px rgba(244,63,94,.9);animation:dotBlink 1.4s steps(2,end) infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(6,182,212,.34)}
  50%{box-shadow:0 0 30px rgba(6,182,212,.62)}
}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== Footer ===== */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg, rgba(8,18,41,.7), rgba(3,7,18,.98));padding:60px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-grid p{font-size:14px;color:var(--muted);margin-top:6px}
.footer-links h4{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#DCE9F8;margin-bottom:14px}
.footer-links a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .2s ease, transform .2s ease}
.footer-links a:hover{color:#8CE0FF;transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);margin-top:42px;padding-top:22px;font-size:13px;color:var(--muted);
}
.age-badge{border:1px solid var(--line-2);border-radius:999px;padding:5px 14px;font-size:12.5px;color:#9FE4FF}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{--pad:56px}
  .hero-inner{grid-template-columns:1fr;gap:34px;align-items:start}
  .split{gap:34px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .metric-row{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:66px;gap:10px}
  .logo-text{font-size:14.5px}
  .logo-text small{display:none}
  .logo-mark{width:36px;height:36px;border-radius:11px;font-size:13px}
  .hero{min-height:auto;padding-top:118px;padding-bottom:48px}
  .split{grid-template-columns:1fr}
  .split--reverse .split-media{order:0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .tier-head{display:none}
  .tier-row{grid-template-columns:1fr;gap:8px}
  .tier-row .note{text-align:left}
  .metric-row{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .fab{bottom:88px}
}
@media (max-width:520px){
  :root{--pad:46px}
  .container{padding:0 16px}
  .hero h1{font-size:23px}
  .hero-sub{font-size:15px}
  .btn{padding:12px 20px;font-size:14px}
  .btn-text{padding:9px 10px;font-size:13px}
  .btn-signup{padding:10px 14px;font-size:13px}
  .logo-text{font-size:13px;max-width:120px}
  .hero-stat{min-width:128px;padding:12px 16px}
  .step{grid-template-columns:1fr;gap:12px}
  .tile{padding:20px}
  .quote{padding:20px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#050B1A;
  --surface:rgba(12,22,44,.62);
  --surface-2:rgba(12,22,44,.86);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#60A5FA;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-sm:0 0 14px rgba(56,189,248,.28);
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --pad:72px;
  --shadow:0 18px 48px rgba(2,8,26,.55);
}
@media (max-width:768px){:root{--pad:56px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(37,99,235,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(56,189,248,.14), transparent 60%),
    var(--bg);
  color:var(--txt);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p{margin:0}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
::selection{background:rgba(56,189,248,.35)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad) 0;position:relative}
.section--alt{background:linear-gradient(180deg, rgba(8,18,41,.72), rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:linear-gradient(180deg, rgba(3,7,18,.2), rgba(8,18,41,.85))}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;letter-spacing:-.01em;line-height:1.28}
.section-sub{color:var(--muted);font-size:16px;max-width:720px;margin-top:14px}
.section-head{margin-bottom:36px}
.section-head--split{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2563EB 0%,#38BDF8 100%);
  color:#04101F;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(1px) scale(.985)}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#E2F2FF}
.btn-ghost:hover{background:rgba(56,189,248,.14);transform:translateY(-2px);box-shadow:var(--glow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

.glow-border{position:relative}
.glow-border::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(56,189,248,.20)}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(3,7,18,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;position:relative}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563EB,#38BDF8);
  color:#04101F;font-weight:800;font-size:14px;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#F1F7FF;line-height:1.15}
.logo-text small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.10em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  font-size:14px;font-weight:500;color:#C7D6EA;padding:9px 13px;border-radius:10px;
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.10)}
.nav-link.active{color:#8CE0FF;background:rgba(56,189,248,.14);box-shadow:inset 0 0 0 1px var(--line-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-text{
  font-size:14px;font-weight:600;color:#BBD7F5;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;transition:.2s ease;
}
.btn-text:hover{color:#fff;border-color:var(--line-2);background:rgba(56,189,248,.08)}
.btn-signup{
  font-size:14px;font-weight:700;color:#04101F;padding:11px 20px;border-radius:999px;
  background:linear-gradient(120deg,#2563EB,#38BDF8);
  box-shadow:0 0 18px rgba(56,189,248,.45);
  transition:transform .18s ease, box-shadow .25s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.7)}
.btn-signup:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(56,189,248,.10);
  border:1px solid var(--line-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#9FE4FF;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#9FE4FF;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ===== Hero ===== */
.cat-hero{position:relative;overflow:hidden;padding:146px 0 78px;display:flex;align-items:center;min-height:620px}
.cat-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;filter:saturate(1.08) brightness(.78)}
.cat-hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(3,7,18,.94) 0%, rgba(3,7,18,.70) 46%, rgba(3,7,18,.98) 100%),
    radial-gradient(840px 460px at 20% 64%, rgba(37,99,235,.36), transparent 66%);
}
.cat-hero__grid{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.86fr);gap:44px;align-items:center}
.cat-hero h1{
  font-size:clamp(26px,3.9vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.2;
  margin:20px 0 0;text-shadow:0 6px 30px rgba(2,8,26,.9);
}
.cat-hero__lead{color:#B9CDE6;font-size:16.5px;margin-top:20px;max-width:660px}
.hero-points{list-style:none;margin:26px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 22px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#CFE1F5}
.hero-points i{color:var(--cyan);margin-top:4px;font-size:13px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

.cat-hero__aside{
  border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(180deg, rgba(12,22,44,.86), rgba(5,11,26,.92));
  border:1px solid var(--line);box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
}
.aside-media{position:relative;height:186px;overflow:hidden}
.aside-media img{width:100%;height:100%;object-fit:cover;opacity:.88}
.aside-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.10),rgba(3,7,18,.88))}
.aside-body{padding:22px}
.aside-label{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);font-weight:600}
.aside-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}
.aside-stats div{background:rgba(56,189,248,.07);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px}
.aside-stats strong{display:block;font-size:20px;font-weight:800;color:#8CE0FF;letter-spacing:-.02em}
.aside-stats span{font-size:12.5px;color:var(--muted);line-height:1.45;display:block;margin-top:4px}
.aside-note{margin-top:16px;font-size:13.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px}

/* ===== Split layout ===== */
.split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:48px;align-items:start}
.split--flip{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr)}
.split__aside{position:sticky;top:104px}
.split__media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);margin-top:24px}
.split__media img{width:100%;height:220px;object-fit:cover}

/* ===== Metrics ===== */
.metric-list{margin-top:6px}
.metric-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:baseline;margin-bottom:6px}
.metric-row span{font-size:14.5px;color:#CFE1F5;font-weight:500}
.metric-row b{font-size:14.5px;color:#8CE0FF;font-weight:700}
.bar{height:8px;border-radius:99px;background:rgba(56,189,248,.12);overflow:hidden;margin-bottom:20px}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#2563EB,#38BDF8);box-shadow:0 0 14px rgba(56,189,248,.6)}
.metric-foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.chip{
  font-size:12.5px;font-weight:600;color:#BFE6FF;padding:7px 13px;border-radius:999px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
}

/* ===== Payment cards ===== */
.pay-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.pay-card{
  border-radius:var(--r);padding:24px 22px;
  background:linear-gradient(180deg, rgba(12,22,44,.72), rgba(5,11,26,.86));
  border:1px solid var(--line);
  transition:transform .22s ease, box-shadow .28s ease, border-color .22s ease;
}
.pay-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 26px rgba(56,189,248,.22)}
.pay-card__icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563EB,#38BDF8);color:#04101F;font-size:19px;
  box-shadow:var(--glow-sm);margin-bottom:16px;
}
.pay-card h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
.pay-card p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.6}
.pay-facts{list-style:none;margin:16px 0 0;padding:0;border-top:1px dashed var(--line);padding-top:14px}
.pay-facts li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;padding:5px 0}
.pay-facts li span{color:var(--muted)}
.pay-facts li b{color:#DFF1FF;font-weight:600}

/* ===== Limits ===== */
.limit-list{border-top:1px solid var(--line)}
.limit-row{
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;align-items:baseline;
  padding:16px 4px;border-bottom:1px solid var(--line);
}
.limit-key{font-size:14.5px;color:#CFE1F5;font-weight:500}
.limit-val{font-size:15px;color:#8CE0FF;font-weight:700}
.limit-note{
  margin-top:22px;padding:18px 20px;border-radius:var(--r);
  background:rgba(56,189,248,.07);border:1px solid var(--line-2);
  font-size:14px;color:#CFE1F5;
}
.limit-note strong{color:#9FE4FF}

/* ===== Steps ===== */
.steps{list-style:none;margin:0;padding:0;counter-reset:step}
.step{position:relative;padding:22px 0 22px 64px;border-bottom:1px dashed var(--line)}
.step:last-child{border-bottom:0}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:22px;width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;font-weight:800;font-size:16px;color:#04101F;
  background:linear-gradient(140deg,#2563EB,#38BDF8);box-shadow:var(--glow-sm);
}
.step h3{font-size:17px;font-weight:700}
.step p{font-size:14.5px;color:var(--muted);margin-top:7px;max-width:640px}
.step em{font-style:normal;color:#9FE4FF;font-weight:600}

/* ===== Security ===== */
.sec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.sec-item{display:flex;gap:16px;padding:22px;border-radius:var(--r);background:rgba(12,22,44,.55);border:1px solid var(--line)}
.sec-item i{
  font-size:16px;color:#8CE0FF;width:42px;height:42px;flex-shrink:0;border-radius:12px;
  display:grid;place-items:center;background:rgba(56,189,248,.10);border:1px solid var(--line-2);
}
.sec-item h3{font-size:16px;font-weight:700}
.sec-item p{font-size:14px;color:var(--muted);margin-top:7px}

/* ===== Category matrix ===== */
.cat-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.cat-card{
  display:block;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(12,22,44,.72), rgba(5,11,26,.9));
  transition:transform .22s ease, box-shadow .28s ease, border-color .22s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 26px rgba(56,189,248,.22)}
.cat-card img{width:100%;height:150px;object-fit:cover;opacity:.9}
.cat-card__body{display:block;padding:20px}
.cat-card__body strong{display:block;font-size:16.5px;font-weight:700}
.cat-card__body em{display:block;font-style:normal;font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.6}
.cat-card__more{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:#8CE0FF;margin-top:14px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--r);background:rgba(12,22,44,.55);overflow:hidden;transition:border-color .2s ease, box-shadow .25s ease}
.faq-item[open]{border-color:var(--line-2);box-shadow:0 0 22px rgba(56,189,248,.14)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);font-size:13px;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--muted);max-width:820px}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-2);padding:46px 44px}
.cta-band__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.26}
.cta-band__veil{position:absolute;inset:0;background:linear-gradient(120deg, rgba(3,7,18,.95), rgba(8,18,41,.78))}
.cta-band__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:36px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.7vw,32px);font-weight:800;letter-spacing:-.01em}
.cta-band p{color:#B9CDE6;font-size:15.5px;margin-top:14px}
.code-box{
  border-radius:var(--r);border:1px dashed var(--line-2);background:rgba(56,189,248,.08);
  padding:22px;text-align:center;
}
.code-box span{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);font-weight:600}
.code-box strong{display:block;font-size:34px;font-weight:800;letter-spacing:.06em;color:#9FE4FF;margin-top:8px;text-shadow:0 0 22px rgba(56,189,248,.6)}
.code-box small{display:block;font-size:12.5px;color:var(--muted);margin-top:10px}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(5,11,26,.55), rgba(3,7,18,.95));
  padding:60px 0 26px;margin-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.site-footer p{font-size:14px;color:var(--muted);max-width:420px}
.footer-links h4{font-size:13px;font-weight:700;letter-spacing:.10em;text-transform:uppercase;color:#9FE4FF;margin-bottom:14px}
.footer-links a{display:block;font-size:14px;color:#C7D6EA;padding:6px 0;transition:color .2s ease, transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.pay-row{display:flex;flex-wrap:wrap;gap:10px}
.pay-badge{
  font-size:12.5px;font-weight:600;color:#BFE6FF;padding:7px 13px;border-radius:999px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--muted);
}
.age-badge{font-size:12.5px;font-weight:600;color:#BFE6FF;padding:7px 14px;border-radius:999px;background:rgba(56,189,248,.08);border:1px solid var(--line)}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;min-height:56px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-2);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  font-size:13.5px;font-weight:600;color:#CFEFFF;
  opacity:.8;transition:opacity .25s ease, transform .22s ease, box-shadow .28s ease;
}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.03);box-shadow:0 0 32px rgba(6,182,212,.72)}
.fab:active{transform:translateY(0) scale(.97);border-color:#EC4899;box-shadow:0 0 24px rgba(236,72,153,.6)}
.fab i{font-size:16px;color:#8CE0FF;animation:fabflicker 3.2s infinite}
.fab__dot{width:9px;height:9px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:fabpulse 1.6s infinite}
@keyframes fabpulse{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes fabflicker{0%,92%,100%{opacity:1}94%{opacity:.4}96%{opacity:1}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex}
  .nav-actions{margin-left:auto}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:14px 20px 20px;display:none;
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  }
  .main-nav.open{display:flex}
  .nav-link{padding:13px 14px;font-size:15px}
  .cat-hero{padding:130px 0 64px;min-height:auto}
  .cat-hero__grid{grid-template-columns:1fr;gap:34px}
  .split,.split--flip{grid-template-columns:1fr;gap:32px}
  .split__aside{position:static}
  .pay-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:720px){
  .hero-points{grid-template-columns:1fr}
  .sec-grid{grid-template-columns:1fr}
  .aside-stats{grid-template-columns:1fr 1fr}
  .cta-band{padding:34px 24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .pay-grid,.cat-matrix,.footer-grid{grid-template-columns:1fr}
  .header-inner{gap:10px}
  .logo-text{font-size:14px}
  .logo-text small{font-size:9.5px;letter-spacing:.06em}
  .btn-text{padding:9px 8px;font-size:13px}
  .btn-signup{padding:10px 14px;font-size:13px}
  .cat-hero h1{font-size:24px}
  .hero-cta .btn{width:100%}
  .limit-row{flex-direction:column;gap:4px}
  .fab{left:12px;bottom:84px;padding:11px 15px;font-size:12.5px}
  .fab__label{display:none}
}