/* roulang page: index */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1c3d;
  --glass:rgba(12,28,58,.55);
  --glass-2:rgba(9,20,44,.78);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.34);
  --blue:#2563EB;
  --blue-2:#1D4ED8;
  --cyan:#38BDF8;
  --cyan-soft:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow-card:0 18px 44px rgba(2,8,23,.55);
  --glow:0 0 26px rgba(37,99,235,.45);
  --glow-cyan:0 0 22px rgba(56,189,248,.35);
  --container:1200px;
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.62;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37,99,235,.28), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  z-index:-1;
  opacity:.5;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.section{padding:78px 0;position:relative;}
.section--tight{padding:56px 0;}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(4,10,24,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9 65%,var(--cyan));
  box-shadow:var(--glow);
  font-size:19px;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:.11em;font-weight:600;}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav a.nav-link{
  padding:9px 14px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  transition:var(--t);
  white-space:nowrap;
}
.nav a.nav-link:hover{color:var(--text);background:rgba(56,189,248,.1);}
.nav a.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px var(--line-2);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;
  border-radius:var(--r-md);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#0EA5E9 60%,#38BDF8);
  color:#03111f;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-2);
  color:var(--cyan-soft);
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan);}
.btn-line{
  background:rgba(255,255,255,.04);
  border-color:var(--line);
  color:var(--text);
}
.btn-line:hover{border-color:var(--line-2);background:rgba(56,189,248,.1);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-2);
  color:var(--cyan);
  font-size:18px;
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);
  padding:14px 22px 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;
  padding:13px 12px;
  border-radius:var(--r-sm);
  font-weight:600;
  color:var(--muted);
  border-bottom:1px solid rgba(56,189,248,.09);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:#fff;background:rgba(37,99,235,.2);}
.mobile-drawer .drawer-cta{margin-top:14px;display:flex;gap:10px;}

/* ===== Shared ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-2);
  color:var(--cyan);
  font-size:12px;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;
}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,3vw,36px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;}
.head-split{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:end;margin-bottom:40px;}
.head-split p{color:var(--muted);}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.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;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(56,189,248,.09);border:1px solid var(--line);color:var(--cyan-soft);
}
.tag-hot{
  display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:800;
  letter-spacing:.09em;text-transform:uppercase;
  background:rgba(239,68,68,.16);color:#FCA5A5;border:1px solid rgba(239,68,68,.36);
}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:70px 0 76px;
  background-image:linear-gradient(115deg,rgba(3,7,18,.94) 12%,rgba(6,16,38,.82) 52%,rgba(3,7,18,.9) 100%),url('/assets/images/8e4c3c1026bf591d.jpg');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:46px;align-items:center;}
.hero h1{font-size:clamp(28px,3.7vw,46px);margin:20px 0 20px;line-height:1.2;}
.hero h1 .hl{
  background:linear-gradient(120deg,#38BDF8,#60A5FA 55%,#A5B4FC);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#CBD5E1;font-size:16.5px;max-width:640px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.hero-metrics div strong{display:block;font-size:22px;font-weight:800;color:#fff;}
.hero-metrics div span{font-size:12.5px;color:var(--dim);text-transform:uppercase;letter-spacing:.08em;font-weight:600;}

.convert-panel{padding:26px;}
.convert-panel h3{font-size:18px;margin-bottom:6px;}
.convert-panel .panel-sub{color:var(--dim);font-size:13.5px;margin-bottom:20px;}
.amount-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:20px;}
.amount-btn{
  padding:9px 15px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:14px;font-weight:700;color:var(--muted);cursor:pointer;transition:var(--t);
}
.amount-btn:hover{border-color:var(--line-2);color:#fff;}
.amount-btn.active{background:linear-gradient(135deg,rgba(37,99,235,.6),rgba(56,189,248,.45));color:#fff;border-color:transparent;box-shadow:var(--glow-cyan);}
.convert-out{
  padding:18px;
  border-radius:var(--r-md);
  background:rgba(3,10,26,.7);
  border:1px solid var(--line);
  margin-bottom:16px;
}
.convert-out .line{display:flex;justify-content:space-between;align-items:baseline;padding:7px 0;font-size:14px;color:var(--muted);}
.convert-out .line b{color:#fff;font-size:16px;font-weight:700;}
.convert-out .line.total{border-top:1px dashed var(--line-2);margin-top:6px;padding-top:14px;}
.convert-out .line.total b{font-size:24px;color:var(--cyan);}
.net-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px;}
.net-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);color:#86EFAC;}
.panel-note{font-size:12.5px;color:var(--dim);}

/* ===== Pain ===== */
.pain-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start;}
.pain-list li{
  display:flex;gap:14px;
  padding:17px 0;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:15.5px;
}
.pain-list li:last-child{border-bottom:0;}
.pain-list i{color:#F87171;margin-top:4px;font-size:16px;}
.pain-list strong{color:#fff;display:block;margin-bottom:4px;font-size:16px;}
.pain-aside{padding:26px;}
.pain-aside h3{font-size:19px;margin-bottom:12px;}
.pain-aside p{color:var(--muted);font-size:15px;margin-bottom:16px;}

/* ===== Capability cards ===== */
.cap-card{padding:26px;transition:var(--t);}
.cap-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 22px 50px rgba(2,8,23,.7),var(--glow-cyan);}
.cap-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,99,235,.45),rgba(56,189,248,.28));
  border:1px solid var(--line-2);color:var(--cyan);font-size:20px;margin-bottom:16px;
}
.cap-card h3{font-size:17.5px;margin-bottom:10px;}
.cap-card p{color:var(--muted);font-size:14.8px;}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass-2);}
table.spec{width:100%;border-collapse:collapse;min-width:640px;}
table.spec th,table.spec td{padding:15px 20px;text-align:left;font-size:14.8px;border-bottom:1px solid var(--line);}
table.spec thead th{background:rgba(37,99,235,.2);color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.08em;}
table.spec tbody tr:hover{background:rgba(56,189,248,.05);}
table.spec td:first-child{color:var(--muted);font-weight:600;}
table.spec td:last-child{color:#fff;font-weight:600;}
table.spec tr:last-child td{border-bottom:0;}
.val-ok{color:#4ADE80;}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{padding:26px 22px;position:relative;}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:13px;font-weight:800;color:var(--cyan);letter-spacing:.12em;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:9px;}
.step p{color:var(--muted);font-size:14.6px;}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{padding:26px 22px;text-align:left;}
.stat b{display:block;font-size:clamp(26px,3vw,36px);font-weight:800;background:linear-gradient(120deg,#38BDF8,#93C5FD);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat span{display:block;margin-top:8px;color:var(--muted);font-size:14px;}

/* ===== Cases ===== */
.case-card{overflow:hidden;transition:var(--t);}
.case-card:hover{transform:translateY(-5px);border-color:var(--line-2);}
.case-card img{width:100%;height:196px;object-fit:cover;}
.case-body{padding:22px;}
.case-body h3{font-size:17px;margin-bottom:10px;}
.case-body p{color:var(--muted);font-size:14.8px;}
.case-meta{margin-top:14px;font-size:12.5px;color:var(--cyan-soft);font-weight:600;text-transform:uppercase;letter-spacing:.07em;}

/* ===== Audience ===== */
.aud-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.aud-item{padding:22px;border-left:3px solid var(--cyan);background:var(--glass);border-radius:0 var(--r-md) var(--r-md) 0;}
.aud-item h3{font-size:16.5px;margin-bottom:8px;}
.aud-item p{color:var(--muted);font-size:14.6px;}

/* ===== Compare ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);}
.compare-col{padding:26px;}
.compare-col.usdt{background:linear-gradient(180deg,rgba(37,99,235,.22),rgba(8,18,41,.6));border-right:1px solid var(--line);}
.compare-col.bank{background:rgba(15,23,42,.6);}
.compare-col h3{font-size:17px;margin-bottom:16px;}
.compare-col li{display:flex;gap:10px;padding:10px 0;font-size:14.6px;color:var(--muted);border-bottom:1px solid rgba(56,189,248,.08);}
.compare-col li:last-child{border-bottom:0;}
.compare-col.usdt li i{color:#4ADE80;}
.compare-col.bank li i{color:#F87171;}

/* ===== Security ===== */
.sec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.sec-item{padding:24px 20px;}
.sec-item i{font-size:22px;color:var(--cyan);margin-bottom:14px;display:block;}
.sec-item h3{font-size:16px;margin-bottom:9px;}
.sec-item p{color:var(--muted);font-size:14.4px;}

/* ===== Testimonials ===== */
.quote{padding:24px;}
.quote .stars{color:#FBBF24;font-size:13px;letter-spacing:2px;margin-bottom:12px;}
.quote p{color:#CBD5E1;font-size:15px;}
.quote footer{margin-top:16px;display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:15px;background:linear-gradient(140deg,var(--blue),var(--cyan));color:#03111f;}
.quote footer b{display:block;font-size:14.5px;}
.quote footer span{font-size:12.5px;color:var(--dim);}

/* ===== Category wall ===== */
.cat-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cat-card{padding:26px;display:flex;flex-direction:column;transition:var(--t);}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 22px 50px rgba(2,8,23,.7);}
.cat-card .cat-ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:rgba(56,189,248,.12);border:1px solid var(--line-2);color:var(--cyan);font-size:19px;margin-bottom:16px;}
.cat-card h3{font-size:17.5px;margin-bottom:10px;}
.cat-card p{color:var(--muted);font-size:14.6px;margin-bottom:18px;}
.cat-card .cat-link{margin-top:auto;font-size:14px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:8px;}
.cat-card:hover .cat-link{gap:12px;}

/* ===== News ===== */
.news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:26px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:block;padding:22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);transition:var(--t);
}
.news-item:hover{border-color:var(--line-2);background:rgba(15,32,66,.7);transform:translateX(4px);}
.news-item .news-cat{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);}
.news-item h3{font-size:16.5px;margin:9px 0 8px;}
.news-item p{color:var(--muted);font-size:14.4px;}
.news-item .news-date{display:block;margin-top:12px;font-size:12.5px;color:var(--dim);}
.news-side{padding:24px;}
.news-side h3{font-size:16px;margin-bottom:16px;text-transform:uppercase;letter-spacing:.08em;color:var(--cyan);}
.news-side a{display:block;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.6px;color:#CBD5E1;transition:var(--t);}
.news-side a:hover{color:var(--cyan);padding-left:6px;}
.news-side a:last-child{border-bottom:0;}
.news-more{display:inline-flex;align-items:center;gap:9px;margin-top:22px;font-weight:700;color:var(--cyan);font-size:14.5px;}
.news-more:hover{gap:13px;}
.empty-note{padding:24px;border-radius:var(--r-lg);border:1px dashed var(--line-2);color:var(--muted);font-size:15px;}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{padding:22px 24px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);}
.faq-item h3{font-size:16.5px;margin-bottom:10px;display:flex;gap:12px;}
.faq-item h3 i{color:var(--cyan);font-size:15px;margin-top:4px;}
.faq-item p{color:var(--muted);font-size:14.8px;}

/* ===== Partners ===== */
.partner-row{display:flex;flex-wrap:wrap;gap:14px;}
.partner{
  padding:14px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:14.5px;font-weight:700;color:#CBD5E1;transition:var(--t);
}
.partner:hover{border-color:var(--line-2);color:#fff;background:rgba(56,189,248,.1);}

/* ===== Final CTA / form ===== */
.cta-section{
  background-image:linear-gradient(120deg,rgba(3,7,18,.95),rgba(8,22,52,.86)),url('/assets/images/266224333c96c6de.jpg');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.cta-grid h2{font-size:clamp(24px,3vw,34px);margin:16px 0 16px;}
.cta-grid p{color:#CBD5E1;font-size:15.8px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:11px;color:var(--muted);font-size:15px;}
.cta-points i{color:#4ADE80;margin-top:5px;}
.form-card{padding:28px;}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-sub{color:var(--dim);font-size:13.5px;margin-bottom:20px;}
.field{margin-bottom:15px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px;}
.field input,.field select{
  width:100%;padding:13px 15px;border-radius:var(--r-md);
  background:rgba(3,10,26,.72);border:1px solid var(--line);
  font-size:15px;transition:var(--t);
}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:var(--glow-cyan);outline:none;}
.field input::placeholder{color:#475569;}
.form-note{margin-top:14px;font-size:12.5px;color:var(--dim);}

/* ===== Footer ===== */
.site-footer{background:rgba(3,8,20,.94);border-top:1px solid var(--line);padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:340px;}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);margin-bottom:16px;}
.footer-col a{display:block;padding:7px 0;color:var(--muted);font-size:14.4px;transition:var(--t);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  color:var(--dim);font-size:13px;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  border:1px solid var(--line-2);color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.06em;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:70;
  display:inline-flex;align-items:center;gap:11px;
  padding:13px 20px 13px 16px;
  border-radius:999px;
  background:rgba(7,12,28,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,12,28,.88),rgba(7,12,28,.88)),linear-gradient(120deg,#22D3EE,#2563EB 55%,#EC4899);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  font-size:14px;font-weight:800;color:#fff;
  opacity:.82;transition:var(--t);
}
.fab i{font-size:17px;color:#22D3EE;animation:fabFlicker 3.2s infinite;}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 34px rgba(236,72,153,.55);}
.fab:active{transform:scale(.95);}
.fab .dot{
  position:absolute;top:-4px;right:-4px;width:13px;height:13px;border-radius:50%;
  background:#EC4899;box-shadow:0 0 10px #EC4899;animation:pulseDot 1.5s infinite;
}
@keyframes fabFlicker{0%,92%,100%{opacity:1;}94%{opacity:.35;}96%{opacity:1;}}
@keyframes pulseDot{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(1.35);opacity:.6;}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{display:none;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .header-actions{margin-left:0;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .pain-grid{grid-template-columns:1fr;gap:30px;}
  .grid-4,.sec-grid,.stats,.steps{grid-template-columns:repeat(2,1fr);}
  .grid-3,.cat-wall{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .head-split{grid-template-columns:1fr;gap:16px;align-items:start;}
}
@media (max-width:768px){
  .section{padding:58px 0;}
  .hero{padding:52px 0 58px;}
  .grid-2,.grid-3,.grid-4,.sec-grid,.stats,.steps,.cat-wall,.aud-list,.compare{grid-template-columns:1fr;}
  .compare-col.usdt{border-right:0;border-bottom:1px solid var(--line);}
  .brand-text strong{font-size:14.5px;}
  .header-actions .btn-ghost{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .fab{bottom:22px;padding:12px 16px;font-size:13px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-metrics{gap:18px;}
  .hero-metrics div strong{font-size:19px;}
  .btn{padding:11px 17px;font-size:14px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .amount-btn{padding:8px 12px;font-size:13px;}
  .convert-out .line.total b{font-size:20px;}
}

/* roulang page: article */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1c3d;
  --glass:rgba(12,28,58,.55);
  --glass-2:rgba(9,20,44,.78);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.34);
  --blue:#2563EB;
  --blue-2:#1D4ED8;
  --cyan:#38BDF8;
  --cyan-soft:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow-card:0 18px 44px rgba(2,8,23,.55);
  --glow:0 0 26px rgba(37,99,235,.45);
  --glow-cyan:0 0 22px rgba(56,189,248,.35);
  --container:1200px;
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.62;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37,99,235,.28), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  z-index:-1;
  opacity:.5;
  pointer-events:none;
}
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;font-weight:800;line-height:1.25;letter-spacing:-.02em;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.section{padding:74px 0;position:relative;}
.section--tight{padding:52px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:34px;}
.section-head h2{font-size:clamp(23px,2.9vw,34px);margin:14px 0 12px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-2);
  color:var(--cyan);
  font-size:12px;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(56,189,248,.09);border:1px solid var(--line);color:var(--cyan-soft);
}
.tag-hot{
  display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:800;
  letter-spacing:.09em;text-transform:uppercase;
  background:rgba(239,68,68,.16);color:#FCA5A5;border:1px solid rgba(239,68,68,.36);
}
/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(4,10,24,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9 65%,var(--cyan));
  box-shadow:var(--glow);font-size:19px;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:.11em;font-weight:600;}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav a.nav-link{
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:var(--t);white-space:nowrap;
}
.nav a.nav-link:hover{color:var(--text);background:rgba(56,189,248,.1);}
.nav a.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px var(--line-2);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn-sm{padding:10px 16px;font-size:13.5px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#0EA5E9 60%,#38BDF8);
  color:#03111f;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--cyan-soft);}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan);}
.btn-line{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-line:hover{border-color:var(--line-2);background:rgba(56,189,248,.1);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);
  color:var(--cyan);font-size:18px;cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);padding:14px 22px 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:13px 12px;border-radius:var(--r-sm);
  font-weight:600;color:var(--muted);border-bottom:1px solid rgba(56,189,248,.09);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a:hover{color:#fff;background:rgba(56,189,248,.08);}
/* ===== Article masthead ===== */
.article-hero{
  position:relative;
  padding:52px 0 58px;
  background-image:linear-gradient(115deg,rgba(3,7,18,.95) 10%,rgba(6,16,38,.84) 55%,rgba(3,7,18,.93) 100%),url('/assets/images/e39b72dbb99fa550.jpg');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--dim);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb i{font-size:10px;color:var(--dim);}
.breadcrumb .current{color:var(--muted);}
.article-hero-grid{display:grid;grid-template-columns:1.42fr .82fr;gap:38px;align-items:start;}
.article-title{font-size:clamp(25px,3.4vw,42px);line-height:1.24;margin:16px 0 18px;}
.article-lead{color:var(--muted);font-size:16.5px;max-width:640px;margin:0 0 22px;}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:13.5px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:8px;}
.article-meta i{color:var(--cyan);font-size:13px;}
.hero-aside{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-xl);padding:20px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-aside img{border-radius:var(--r-lg);border:1px solid var(--line);margin-bottom:18px;}
.hero-aside h3{font-size:15px;text-transform:uppercase;letter-spacing:.09em;color:var(--cyan);margin-bottom:14px;}
.fact-list li{
  display:flex;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed rgba(56,189,248,.18);
  font-size:14px;color:var(--muted);
}
.fact-list li:last-child{border-bottom:0;}
.fact-list strong{color:var(--text);font-weight:700;text-align:right;}
/* ===== Article body ===== */
.article-body{font-size:16.5px;color:#E2E8F0;max-width:100%;}
.article-body h2{font-size:clamp(21px,2.4vw,27px);margin:34px 0 14px;padding-left:14px;border-left:3px solid var(--cyan);}
.article-body h3{font-size:19px;margin:26px 0 10px;color:#fff;}
.article-body h4{font-size:17px;margin:22px 0 8px;color:var(--cyan-soft);}
.article-body p{color:var(--muted);margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{list-style:disc;color:var(--muted);margin-bottom:8px;}
.article-body ol li{list-style:decimal;color:var(--muted);margin-bottom:8px;}
.article-body strong{color:#fff;}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
.article-body img{border-radius:var(--r-lg);border:1px solid var(--line);margin:20px 0;}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;border-radius:var(--r-md);
  border-left:3px solid var(--blue);background:rgba(37,99,235,.09);
  color:var(--cyan-soft);font-size:15.5px;
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left;}
.article-body th{background:rgba(37,99,235,.16);color:#fff;}
.empty-state{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:38px 28px;text-align:left;
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--muted);margin-bottom:20px;}
/* ===== Summary ===== */
.summary-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start;}
.summary-list li{
  display:grid;grid-template-columns:34px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.summary-list li:last-child{border-bottom:0;}
.summary-list i{color:var(--cyan);font-size:17px;margin-top:4px;}
.summary-list strong{display:block;font-size:16px;margin-bottom:4px;color:#fff;}
.summary-list span{color:var(--muted);font-size:14.8px;}
.summary-figure{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.summary-figure img{width:100%;object-fit:cover;aspect-ratio:4/3;}
/* ===== Data table ===== */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--glass);box-shadow:var(--shadow-card);
}
.data-table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.8px;}
.data-table thead th{
  background:rgba(37,99,235,.18);color:#fff;font-size:13px;
  text-transform:uppercase;letter-spacing:.07em;text-align:left;padding:15px 18px;
}
.data-table td{padding:15px 18px;border-top:1px solid var(--line);color:var(--muted);}
.data-table td:first-child{color:#fff;font-weight:700;}
.data-table tbody tr:hover{background:rgba(56,189,248,.06);}
.badge-ok{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:700;background:rgba(34,197,94,.14);color:#86EFAC;border:1px solid rgba(34,197,94,.3);
}
.badge-warn{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:700;background:rgba(245,158,11,.14);color:#FCD34D;border:1px solid rgba(245,158,11,.3);
}
/* ===== Steps ===== */
.steps{display:grid;gap:16px;}
.step{
  display:grid;grid-template-columns:58px 1fr;gap:18px;
  padding:22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  transition:var(--t);
}
.step:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:var(--glow-cyan);}
.step-num{
  width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,99,235,.5),rgba(56,189,248,.28));
  border:1px solid var(--line-2);font-size:20px;font-weight:800;color:#fff;
}
.step h3{font-size:17.5px;margin-bottom:7px;}
.step p{color:var(--muted);font-size:15px;margin:0;}
/* ===== Notes ===== */
.notes{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.note{
  padding:20px;border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(12,28,58,.6),rgba(6,14,32,.5));
  border:1px solid var(--line);
}
.note h3{font-size:16.5px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.note h3 i{color:var(--cyan);font-size:15px;}
.note p{color:var(--muted);font-size:14.8px;margin:0;}
/* ===== FAQ ===== */
.faq details{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:var(--t);
}
.faq details[open]{border-color:var(--line-2);box-shadow:var(--glow-cyan);}
.faq summary{
  list-style:none;cursor:pointer;padding:17px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-weight:700;font-size:15.5px;color:#fff;
}
.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 .faq-body{padding:0 20px 18px;color:var(--muted);font-size:15px;}
/* ===== Topics ===== */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.topic-card{
  display:block;padding:24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  transition:var(--t);
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow-cyan);}
.topic-card .topic-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(37,99,235,.24);border:1px solid var(--line-2);color:var(--cyan);
  font-size:18px;margin-bottom:16px;
}
.topic-card h3{font-size:17px;margin-bottom:8px;}
.topic-card p{color:var(--muted);font-size:14.6px;margin:0 0 14px;}
.topic-card .topic-more{color:var(--cyan);font-size:13.5px;font-weight:700;display:inline-flex;align-items:center;gap:8px;}
/* ===== CTA ===== */
.cta-band{
  display:grid;grid-template-columns:1.5fr .5fr;gap:28px;align-items:center;
  padding:38px;border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(37,99,235,.24),rgba(56,189,248,.12));
  border:1px solid var(--line-2);box-shadow:var(--glow);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band p{color:#CBD5E1;margin:0;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-note{font-size:13px;color:var(--dim);margin-top:16px;}
/* ===== 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);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
    linear-gradient(135deg,#A3E635,#06B6D4);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:#A3E635;font-size:21px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:.8;transition:var(--t);
  animation:fabPulse 2.6s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(163,230,53,.55);}
.fab:active{transform:scale(.94);}
.fab .fab-dot{
  position:absolute;top:8px;right:8px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px rgba(244,63,94,.9);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35);}50%{box-shadow:0 0 28px rgba(163,230,53,.5);}}
@keyframes dotBlink{0%,100%{opacity:1;}50%{opacity:.25;}}
/* ===== Footer ===== */
.site-footer{
  background:linear-gradient(180deg,rgba(4,10,24,.6),rgba(3,7,18,.96));
  border-top:1px solid var(--line);padding:58px 0 26px;margin-top:10px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;}
.footer-brand p{color:var(--muted);font-size:14px;margin:16px 0 0;max-width:340px;}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.09em;color:var(--cyan);margin-bottom:14px;}
.footer-col a{display:block;padding:6px 0;color:var(--muted);font-size:14px;transition:var(--t);}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:36px;padding-top:20px;
  font-size:13px;color:var(--dim);
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--cyan-soft);
  font-size:12.5px;font-weight:600;
}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .header-actions{margin-left:auto;}
  .article-hero-grid{grid-template-columns:1fr;}
  .summary-grid{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .cta-band{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .notes{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:1fr;}
  .step{grid-template-columns:46px 1fr;padding:18px;gap:14px;}
  .step-num{width:46px;height:46px;border-radius:13px;font-size:17px;}
  .article-hero{padding:36px 0 44px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text span{display:none;}
  .brand-text strong{font-size:14.5px;}
  .btn-sm{padding:9px 12px;font-size:12.5px;border-radius:9px;}
  .header-actions{gap:7px;}
  .nav-toggle{width:40px;height:40px;font-size:16px;}
  .cta-band{padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .fab{width:52px;height:52px;bottom:88px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1c3d;
  --glass:rgba(12,28,58,.55);
  --glass-2:rgba(9,20,44,.78);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.34);
  --blue:#2563EB;
  --blue-2:#1D4ED8;
  --cyan:#38BDF8;
  --cyan-soft:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow-card:0 18px 44px rgba(2,8,23,.55);
  --glow:0 0 26px rgba(37,99,235,.45);
  --glow-cyan:0 0 22px rgba(56,189,248,.35);
  --container:1200px;
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.62;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37,99,235,.28), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  z-index:-2;
}
body::after{
  content:"";position:fixed;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;z-index:-1;opacity:.5;pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.24;letter-spacing:-.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(56,189,248,.35);color:#fff;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.section{padding:78px 0;position:relative;}
.section--alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,3vw,36px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);
  color:var(--cyan);font-size:12px;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(56,189,248,.09);border:1px solid var(--line);color:var(--cyan-soft);
}
/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(4,10,24,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9 65%,var(--cyan));
  box-shadow:var(--glow);font-size:19px;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:.11em;font-weight:600;}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav a.nav-link{
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:var(--t);white-space:nowrap;
}
.nav a.nav-link:hover{color:var(--text);background:rgba(56,189,248,.1);}
.nav a.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px var(--line-2);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#0EA5E9 60%,#38BDF8);
  color:#03111f;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--cyan-soft);}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan);}
.btn-line{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-line:hover{border-color:var(--line-2);background:rgba(56,189,248,.1);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);
  color:var(--cyan);font-size:18px;cursor:pointer;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:rgba(4,10,24,.97);padding:14px 22px 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer a{display:block;padding:13px 12px;border-radius:var(--r-sm);font-weight:600;color:var(--muted);border-bottom:1px solid rgba(56,189,248,.09);}
.mobile-drawer a:last-of-type{border-bottom:0;}
.mobile-drawer a.active{color:#fff;background:rgba(37,99,235,.2);}
.mobile-drawer .drawer-cta{margin-top:14px;display:flex;gap:10px;}
/* ===== Hero (category) ===== */
.hero-cat{
  position:relative;padding:66px 0 74px;
  background-image:linear-gradient(115deg,rgba(3,7,18,.95) 10%,rgba(6,16,38,.86) 48%,rgba(3,7,18,.93) 100%),url('/assets/images/d2e5f57d9e213588.jpg');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-cat__grid{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center;}
.hero-cat h1{font-size:clamp(27px,3.5vw,43px);margin:18px 0 18px;}
.hero-lead{color:var(--muted);font-size:17px;max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px;}
.terminal{
  background:var(--glass-2);border:1px solid var(--line-2);border-radius:var(--r-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--glow-cyan);overflow:hidden;
}
.terminal__bar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(3,7,18,.6);}
.terminal__dots{display:inline-flex;gap:6px;}
.terminal__dots i{width:9px;height:9px;border-radius:50%;background:#334155;display:block;}
.terminal__dots i:first-child{background:#ef4444;}
.terminal__dots i:nth-child(2){background:#f59e0b;}
.terminal__dots i:last-child{background:#22c55e;}
.terminal__title{margin-left:auto;font-size:12px;color:var(--dim);letter-spacing:.06em;}
.terminal__body{padding:18px 18px 20px;font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.4px;line-height:1.85;}
.term-line{display:flex;justify-content:space-between;gap:14px;color:var(--muted);border-bottom:1px dashed rgba(56,189,248,.12);padding:4px 0;}
.term-line:last-child{border-bottom:0;}
.term-prompt{color:var(--cyan);font-weight:700;margin-right:8px;}
.term-key{color:var(--dim);}
.term-val{color:var(--text);font-weight:600;text-align:right;}
.term-ok{color:var(--ok);font-weight:700;}
/* ===== Split content ===== */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:start;}
.split h3{font-size:22px;margin-bottom:14px;}
.split p{color:var(--muted);margin-bottom:16px;}
.check-list li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--muted);font-size:15.3px;}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:4px;color:var(--cyan);font-size:12px;}
.media-frame{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);margin-bottom:20px;}
.media-frame img{width:100%;height:228px;object-fit:cover;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.stat{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);padding:16px;backdrop-filter:blur(10px);transition:var(--t);}
.stat:hover{border-color:var(--line-2);transform:translateY(-3px);}
.stat__num{display:block;font-size:21px;font-weight:800;color:var(--cyan);letter-spacing:-.02em;}
.stat__label{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.45;}
/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.step{
  position:relative;padding:24px 24px 24px 78px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  backdrop-filter:blur(12px);transition:var(--t);
}
.step:hover{border-color:var(--line-2);box-shadow:var(--shadow-card);transform:translateY(-3px);}
.step__no{
  position:absolute;left:22px;top:24px;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:16px;color:#03111f;
  background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:var(--glow);
}
.step h3{font-size:17.5px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;}
/* ===== Spec ===== */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 44px;}
.spec{display:flex;justify-content:space-between;gap:18px;padding:15px 0;border-bottom:1px solid rgba(56,189,248,.12);}
.spec__k{color:var(--muted);font-size:14.6px;}
.spec__v{color:var(--text);font-weight:700;font-size:14.6px;text-align:right;}
.spec__v.hl{color:var(--cyan);}
/* ===== Cases ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:var(--t);backdrop-filter:blur(12px);
}
.case:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-card);}
.case img{width:100%;height:168px;object-fit:cover;}
.case__body{padding:20px 20px 22px;}
.case h3{font-size:17px;margin-bottom:9px;}
.case p{color:var(--muted);font-size:14.6px;}
/* ===== Quotes ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.quote{padding-top:20px;border-top:2px solid var(--line-2);}
.quote__text{font-size:15.5px;color:#DCE6F5;margin-bottom:14px;}
.quote__who{font-size:13px;color:var(--cyan);font-weight:700;}
/* ===== Category matrix ===== */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cat-card{
  display:flex;align-items:center;gap:14px;padding:16px;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);
  transition:var(--t);
}
.cat-card:hover{border-color:var(--line-2);background:rgba(37,99,235,.16);transform:translateY(-3px);}
.cat-card img{width:56px;height:56px;border-radius:14px;object-fit:cover;flex-shrink:0;}
.cat-card strong{display:block;font-size:15.4px;}
.cat-card em{display:block;font-size:12.4px;color:var(--muted);margin-top:3px;font-style:normal;}
.cat-card.is-current{border-color:var(--line-2);box-shadow:var(--glow-cyan);}
/* ===== Posts list ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.post-card{
  display:flex;flex-direction:column;gap:10px;padding:20px;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);
  transition:var(--t);
}
.post-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--shadow-card);}
.post-tag{
  align-self:flex-start;font-size:11.4px;font-weight:700;text-transform:uppercase;
  letter-spacing:.08em;color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--line);padding:4px 10px;border-radius:6px;
}
.post-card h3{font-size:16.4px;line-height:1.4;}
.post-card p{font-size:14px;color:var(--muted);}
.post-date{font-size:12.4px;color:var(--dim);margin-top:auto;}
.list-empty{padding:26px;border:1px dashed var(--line-2);border-radius:var(--r-lg);color:var(--muted);text-align:center;}
/* ===== FAQ ===== */
.faq{display:grid;gap:12px;max-width:920px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);overflow:hidden;transition:var(--t);}
.faq-item[open]{border-color:var(--line-2);box-shadow:0 12px 32px rgba(2,8,23,.45);}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 54px 17px 20px;font-weight:700;font-size:15.5px;position:relative;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:17px;color:var(--cyan);font-size:13px;transition:var(--t);
}
.faq-item[open] summary::after{content:"\f068";}
.faq-item summary:hover{color:var(--cyan-soft);}
.faq-a{padding:0 20px 20px;color:var(--muted);font-size:14.8px;}
/* ===== CTA band ===== */
.cta-band{
  padding:64px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(37,99,235,.34),rgba(3,7,18,.9) 58%),url('/assets/images/e39b72dbb99fa550.jpg');
  background-size:cover;background-position:center;
}
.cta-band__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center;}
.cta-band h2{font-size:clamp(23px,2.8vw,33px);margin-bottom:14px;}
.cta-band p{color:#CBD8EA;font-size:15.6px;}
.cta-form{
  display:flex;gap:10px;padding:12px;border-radius:var(--r-lg);
  background:var(--glass-2);border:1px solid var(--line-2);
  backdrop-filter:blur(12px);box-shadow:var(--shadow-card);
}
.cta-form input{
  flex:1;min-width:0;background:rgba(3,7,18,.6);border:1px solid var(--line);
  border-radius:var(--r-md);padding:13px 14px;font-size:14.6px;color:var(--text);
}
.cta-form input::placeholder{color:var(--dim);}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18);}
.cta-note{margin-top:14px;font-size:13px;color:var(--muted);}
/* ===== Footer ===== */
.site-footer{
  background:linear-gradient(180deg,rgba(4,10,24,.92),rgba(2,5,14,.98));
  border-top:1px solid var(--line);padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:350px;}
.footer-col h4{font-size:13.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--cyan);margin-bottom:16px;}
.footer-col a{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;transition:var(--t);}
.footer-col a:hover{color:var(--text);transform:translateX(3px);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--dim);font-size:13px;
}
.age-badge{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--line-2);color:var(--cyan-soft);background:rgba(56,189,248,.08);
  font-size:12.5px;font-weight:600;
}
/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 18px;border-radius:999px;
  font-size:13.4px;font-weight:700;color:var(--text);
  border:1px solid transparent;
  background:
    linear-gradient(rgba(7,12,26,.92),rgba(7,12,26,.92)) padding-box,
    linear-gradient(120deg,var(--cyan),var(--blue)) border-box;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.84;transition:var(--t);
}
.fab:hover{opacity:1;transform:translateY(-2px) scale(1.03);box-shadow:0 0 30px rgba(56,189,248,.6);}
.fab:active{transform:translateY(1px) scale(.97);}
.fab i{color:var(--cyan);font-size:17px;animation:fabPulse 2.4s ease-in-out infinite;}
.fab-dot{position:absolute;top:-4px;right:-4px;width:10px;height:10px;border-radius:50%;background:#EF4444;box-shadow:0 0 0 2px rgba(3,7,18,.9);}
@keyframes fabPulse{0%,100%{opacity:1;}50%{opacity:.5;}}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .header-actions{margin-left:auto;}
  .hero-cat__grid{grid-template-columns:1fr;gap:34px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .steps{grid-template-columns:1fr;}
  .case-grid,.quote-grid,.cat-grid,.post-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band__inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .container{padding:0 18px;}
  .brand-text span{display:none;}
  .brand-text strong{font-size:14px;}
  .btn{padding:11px 16px;font-size:14px;}
  .spec-grid{grid-template-columns:1fr;}
  .case-grid,.quote-grid,.cat-grid,.post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-lead{font-size:16px;}
}
@media (max-width:520px){
  .hero-cat{padding:46px 0 54px;}
  .header-inner{gap:10px;min-height:64px;}
  .brand-mark{width:36px;height:36px;font-size:16px;border-radius:11px;}
  .brand-text strong{font-size:12px;max-width:94px;line-height:1.15;white-space:normal;}
  .btn-sm{padding:8px 10px;font-size:12px;border-radius:9px;}
  .nav-toggle{width:38px;height:38px;font-size:16px;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-form{flex-direction:column;}
  .fab{left:12px;bottom:84px;padding:11px 15px;font-size:12.4px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1c3d;
  --glass:rgba(12,28,58,.55);
  --glass-2:rgba(9,20,44,.78);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.34);
  --blue:#2563EB;
  --blue-2:#1D4ED8;
  --cyan:#38BDF8;
  --cyan-soft:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow-card:0 18px 44px rgba(2,8,23,.55);
  --glow:0 0 26px rgba(37,99,235,.45);
  --glow-cyan:0 0 22px rgba(56,189,248,.35);
  --container:1200px;
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.62;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37,99,235,.28), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  z-index:-1;
  opacity:.5;
  pointer-events:none;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;font-weight:800;}
p{margin:0;}
ul{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:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.section{padding:78px 0;position:relative;}
.section--tight{padding:56px 0;}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--glow{background:radial-gradient(760px 340px at 78% 0%, rgba(37,99,235,.2), transparent 66%);}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(4,10,24,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9 65%,var(--cyan));
  box-shadow:var(--glow);font-size:19px;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:.11em;font-weight:600;}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav a.nav-link{
  padding:9px 14px;border-radius:var(--r-sm);font-size:14.5px;font-weight:600;
  color:var(--muted);transition:var(--t);white-space:nowrap;
}
.nav a.nav-link:hover{color:var(--text);background:rgba(56,189,248,.1);}
.nav a.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px var(--line-2);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-md);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#2563EB,#0EA5E9 60%,#38BDF8);color:#03111f;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--cyan-soft);}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan);}
.btn-line{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-line:hover{border-color:var(--line-2);background:rgba(56,189,248,.1);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);
  color:var(--cyan);font-size:18px;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:rgba(4,10,24,.97);padding:14px 22px 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer a{display:block;padding:13px 12px;border-radius:var(--r-sm);font-weight:600;color:var(--muted);border-bottom:1px solid rgba(56,189,248,.09);}
.mobile-drawer a:last-of-type{border-bottom:0;}
.mobile-drawer a.active{color:#fff;background:rgba(37,99,235,.2);}
.mobile-drawer .drawer-cta{margin-top:14px;display:flex;gap:10px;}

/* ===== Shared ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);color:var(--cyan);
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,3vw,36px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16.5px;}
.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;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;background:rgba(56,189,248,.09);border:1px solid var(--line);color:var(--cyan-soft);}
.tag-hot{
  display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:800;
  letter-spacing:.09em;text-transform:uppercase;
  background:rgba(239,68,68,.16);color:#FCA5A5;border:1px solid rgba(239,68,68,.36);
}
.tag-ok{background:rgba(34,197,94,.14);color:#86EFAC;border-color:rgba(34,197,94,.34);}

/* ===== Hero ===== */
.hero{
  position:relative;padding:66px 0 72px;
  background-image:linear-gradient(115deg,rgba(3,7,18,.95) 12%,rgba(6,16,38,.84) 52%,rgba(3,7,18,.92) 100%),url('/assets/images/8e4c3c1026bf591d.jpg');
  background-size:cover;background-position:center;border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.hero h1{font-size:clamp(28px,4vw,46px);margin:18px 0 18px;}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#60A5FA,#38BDF8 55%,#A5F3FC);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{color:var(--muted);font-size:17px;max-width:620px;line-height:1.68;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 30px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;border-top:1px solid var(--line);padding-top:24px;}
.hero-stats div strong{display:block;font-size:clamp(19px,2.2vw,25px);color:#fff;letter-spacing:-.03em;}
.hero-stats div span{font-size:12.5px;color:var(--dim);text-transform:uppercase;letter-spacing:.07em;font-weight:600;}

/* ===== Voucher wall ===== */
.voucher-wall{display:flex;flex-direction:column;gap:16px;}
.voucher-main{
  position:relative;border-radius:var(--r-xl);padding:26px 24px 24px;
  background:linear-gradient(160deg,rgba(37,99,235,.34),rgba(9,20,44,.92) 58%);
  border:1px solid var(--line-2);box-shadow:var(--shadow-card),0 0 40px rgba(56,189,248,.18);
  overflow:hidden;
}
.voucher-main::after{
  content:"";position:absolute;inset:-40% -10% auto auto;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.4),transparent 66%);pointer-events:none;
}
.voucher-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;}
.voucher-label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);font-weight:700;}
.voucher-amount{font-size:clamp(38px,5vw,58px);font-weight:800;letter-spacing:-.04em;line-height:1.05;margin:10px 0 4px;color:#fff;}
.voucher-amount small{font-size:18px;font-weight:700;color:var(--cyan-soft);letter-spacing:0;}
.voucher-sub{color:var(--muted);font-size:14.5px;}
.voucher-code{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin:20px 0 18px;padding:12px 14px;border-radius:var(--r-md);
  border:1px dashed rgba(56,189,248,.5);background:rgba(3,7,18,.5);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;color:#A5F3FC;letter-spacing:.08em;
}
.voucher-note{font-size:12.5px;color:var(--dim);margin-top:12px;}
.voucher-mini-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.voucher-mini{
  border-radius:var(--r-lg);padding:16px;background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;gap:6px;transition:var(--t);
}
.voucher-mini:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:var(--glow-cyan);}
.voucher-mini i{color:var(--cyan);font-size:17px;}
.voucher-mini strong{font-size:15.5px;}
.voucher-mini span{font-size:13px;color:var(--muted);}

/* ===== Problem / solution ===== */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:38px;align-items:start;}
.problem-list{display:flex;flex-direction:column;gap:0;}
.problem-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);}
.problem-item:first-child{padding-top:0;}
.problem-item:last-child{border-bottom:0;}
.problem-item i{color:#F87171;font-size:17px;margin-top:5px;}
.problem-item h3{font-size:16.5px;margin-bottom:5px;}
.problem-item p{color:var(--muted);font-size:14.8px;}
.solve-panel{
  background:var(--glass-2);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:26px;box-shadow:var(--shadow-card);
}
.solve-panel h3{font-size:20px;margin-bottom:16px;}
.solve-row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid rgba(56,189,248,.1);}
.solve-row:last-child{border-bottom:0;padding-bottom:0;}
.solve-row .ic{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(37,99,235,.22);border:1px solid var(--line-2);color:var(--cyan);font-size:16px;
}
.solve-row strong{display:block;font-size:15.5px;margin-bottom:3px;}
.solve-row p{color:var(--muted);font-size:14.4px;}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--r-lg);
  background:linear-gradient(170deg,rgba(11,28,61,.75),rgba(5,12,28,.75));
  border:1px solid var(--line);transition:var(--t);
}
.step:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--glow-cyan);}
.step-no{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;font-weight:700;
  color:var(--cyan);letter-spacing:.16em;display:block;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:9px;}
.step p{color:var(--muted);font-size:14.4px;}
.step-flag{
  position:absolute;top:-11px;right:14px;padding:3px 9px;border-radius:6px;font-size:10.5px;font-weight:800;
  letter-spacing:.08em;text-transform:uppercase;background:rgba(37,99,235,.9);color:#fff;
}

/* ===== Metrics ===== */
.metric-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px;}
.metric{
  padding:22px 20px;border-radius:var(--r-lg);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(10px);
}
.metric strong{display:block;font-size:clamp(24px,3vw,32px);letter-spacing:-.035em;color:#fff;}
.metric span{font-size:13px;color:var(--muted);}
.spec-table{width:100%;border-collapse:collapse;font-size:14.6px;overflow:hidden;border-radius:var(--r-lg);}
.spec-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(6,14,32,.6);}
.spec-table th,.spec-table td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(56,189,248,.1);}
.spec-table thead th{background:rgba(37,99,235,.18);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan-soft);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover{background:rgba(56,189,248,.05);}
.spec-table td:first-child{font-weight:600;color:#fff;}

/* ===== Testimonials ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.quote{
  padding:24px 22px;border-radius:var(--r-lg);background:var(--glass-2);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:14px;
}
.quote .stars{color:var(--warn);font-size:13px;letter-spacing:.16em;}
.quote p{color:#E2E8F0;font-size:15px;line-height:1.66;}
.quote footer{display:flex;align-items:center;gap:12px;margin-top:auto;border-top:1px solid var(--line);padding-top:14px;}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;
  background:linear-gradient(140deg,#2563EB,#38BDF8);color:#03111f;flex:0 0 40px;
}
.quote footer strong{display:block;font-size:14.5px;}
.quote footer span{font-size:12.5px;color:var(--dim);}

/* ===== Audience ===== */
.audience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.audience{
  display:flex;gap:16px;padding:22px;border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(11,28,61,.7),rgba(5,12,28,.72));
  border:1px solid var(--line);transition:var(--t);
}
.audience:hover{border-color:var(--line-2);transform:translateY(-3px);}
.audience .ic{
  width:46px;height:46px;flex:0 0 46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-2);color:var(--cyan);font-size:18px;
}
.audience h3{font-size:16.5px;margin-bottom:6px;}
.audience p{color:var(--muted);font-size:14.5px;}

/* ===== Category matrix ===== */
.cat-band{
  border-radius:var(--r-xl);border:1px solid var(--line-2);padding:30px;
  background:linear-gradient(120deg,rgba(37,99,235,.22),rgba(6,14,32,.86) 60%);
  box-shadow:var(--shadow-card);
}
.cat-band h2{font-size:clamp(21px,2.6vw,28px);margin-bottom:10px;}
.cat-band > p{color:var(--muted);max-width:720px;margin-bottom:24px;}
.cat-links{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.cat-link{
  display:flex;flex-direction:column;gap:8px;padding:18px;border-radius:var(--r-lg);
  background:rgba(3,7,18,.55);border:1px solid var(--line);transition:var(--t);
}
.cat-link:hover{border-color:var(--cyan);box-shadow:var(--glow-cyan);transform:translateY(-3px);}
.cat-link i{color:var(--cyan);font-size:18px;}
.cat-link strong{font-size:16px;}
.cat-link span{font-size:13.4px;color:var(--muted);}
.cat-link em{font-style:normal;font-size:12.5px;color:var(--cyan-soft);font-weight:700;letter-spacing:.05em;text-transform:uppercase;}

/* ===== Posts ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
  display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;
  background:var(--glass-2);border:1px solid var(--line);transition:var(--t);
}
.post-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--glow-cyan);}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#061024;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.4,0,.2,1);}
.post-card:hover .post-thumb img{transform:scale(1.06);}
.post-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,0) 40%,rgba(3,7,18,.85));}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--dim);text-transform:uppercase;letter-spacing:.06em;font-weight:600;}
.post-body h3{font-size:16.5px;}
.post-body h3 a{transition:var(--t);}
.post-body h3 a:hover{color:var(--cyan);}
.post-body p{color:var(--muted);font-size:14.3px;}
.post-more{margin-top:auto;font-size:13.4px;font-weight:700;color:var(--cyan-soft);display:inline-flex;align-items:center;gap:7px;}
.empty-note{padding:26px;border-radius:var(--r-lg);border:1px dashed var(--line-2);color:var(--muted);text-align:left;}
.list-foot{display:flex;justify-content:flex-start;margin-top:30px;}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq details{
  border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(6,14,32,.62);
  padding:0 20px;transition:var(--t);
}
.faq details[open]{border-color:var(--line-2);background:rgba(9,20,44,.85);}
.faq summary{
  cursor:pointer;list-style:none;padding:18px 0;font-weight:700;font-size:16px;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--cyan);transition:var(--t);}
.faq details[open] summary::after{content:"\f068";}
.faq details p{padding:0 0 18px;color:var(--muted);font-size:15px;}

/* ===== CTA ===== */
.cta-band{
  border-radius:var(--r-xl);padding:44px 38px;text-align:center;
  background:linear-gradient(125deg,rgba(37,99,235,.4),rgba(56,189,248,.18) 55%,rgba(6,14,32,.9));
  border:1px solid var(--line-2);box-shadow:var(--shadow-card),0 0 46px rgba(37,99,235,.28);
}
.cta-band h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;}
.cta-band p{color:#DCE7F5;max-width:700px;margin:0 auto 26px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:24px;}
.cta-points span{font-size:13px;color:#CFE4F8;display:inline-flex;align-items:center;gap:8px;}
.cta-points i{color:var(--ok);}

/* ===== Footer ===== */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,14,32,.85),rgba(3,7,18,.98));padding:56px 0 26px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px;padding-bottom:34px;border-bottom:1px solid var(--line);}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14.4px;max-width:360px;}
.footer-col h4{font-size:14px;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan-soft);margin-bottom:14px;}
.footer-col a{display:block;padding:6px 0;color:var(--muted);font-size:14.4px;transition:var(--t);}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;color:var(--dim);font-size:13px;}
.age-badge{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;border:1px solid var(--line-2);color:var(--cyan-soft);font-weight:600;}

/* ===== 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,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.9),rgba(7,12,26,.9)),linear-gradient(120deg,#38BDF8,#A3E635 55%,#EC4899);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E2F4FF;font-weight:700;font-size:14px;
  transition:var(--t);
}
.fab i{font-size:17px;color:#A3E635;}
.fab:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(6,182,212,.7);color:#fff;}
.fab:active{transform:translateY(1px) scale(.97);}
.fab .dot{
  position:absolute;top:6px;right:8px;width:9px;height:9px;border-radius:50%;
  background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:pulse 1.8s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{display:none;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .header-actions{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .grid-4,.metric-band{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .quote-grid,.post-grid,.cat-links{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:58px 0;}
  .hero{padding:48px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px;}
  .grid-2,.grid-3,.audience-grid{grid-template-columns:1fr;}
  .voucher-mini-row{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .steps,.quote-grid,.post-grid,.cat-links,.metric-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:22px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn,.drawer-cta .btn{width:100%;}
  .brand-text strong{font-size:14.5px;}
  .fab{left:12px;bottom:84px;padding:11px 15px;font-size:13px;}
  .spec-table th,.spec-table td{padding:11px 12px;font-size:13.4px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1c3d;
  --glass:rgba(12,28,58,.55);
  --glass-2:rgba(9,20,44,.78);
  --line:rgba(56,189,248,.16);
  --line-2:rgba(56,189,248,.34);
  --blue:#2563EB;
  --blue-2:#1D4ED8;
  --cyan:#38BDF8;
  --cyan-soft:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow-card:0 18px 44px rgba(2,8,23,.55);
  --glow:0 0 26px rgba(37,99,235,.45);
  --glow-cyan:0 0 22px rgba(56,189,248,.35);
  --container:1200px;
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.62;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(37,99,235,.28), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  z-index:-1;
  opacity:.5;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;}
.section{padding:78px 0;position:relative;}
.section--tight{padding:56px 0;}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(4,10,24,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9 65%,var(--cyan));
  box-shadow:var(--glow);
  font-size:19px;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:.11em;font-weight:600;}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav a.nav-link{
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:var(--t);white-space:nowrap;
}
.nav a.nav-link:hover{color:var(--text);background:rgba(56,189,248,.1);}
.nav a.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px var(--line-2);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#0EA5E9 60%,#38BDF8);
  color:#03111f;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--cyan-soft);}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan);}
.btn-line{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-line:hover{border-color:var(--line-2);background:rgba(56,189,248,.1);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);
  color:var(--cyan);font-size:18px;cursor:pointer;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:rgba(4,10,24,.97);padding:14px 22px 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:13px 12px;border-radius:var(--r-sm);
  font-weight:600;color:var(--muted);border-bottom:1px solid rgba(56,189,248,.09);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:#fff;background:rgba(37,99,235,.2);}
.mobile-drawer .drawer-cta{margin-top:14px;display:flex;gap:10px;}

/* ===== Shared ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);color:var(--cyan);
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,3vw,36px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;}
.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;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:7px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(56,189,248,.09);border:1px solid var(--line);color:var(--cyan-soft);
}
.tag-hot{
  display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:800;
  letter-spacing:.09em;text-transform:uppercase;
  background:rgba(239,68,68,.16);color:#FCA5A5;border:1px solid rgba(239,68,68,.36);
}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--cyan-soft);transition:var(--t);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb i{font-size:10px;}

/* ===== Category hero ===== */
.page-hero{
  position:relative;
  padding:54px 0 72px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(115deg,rgba(3,7,18,.95) 10%,rgba(6,16,38,.84) 52%,rgba(3,7,18,.92) 100%),url('/assets/images/8e4c3c1026bf591d.jpg');
  background-size:cover;
  background-position:center;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center;}
.hero-copy h1{font-size:clamp(27px,3.7vw,44px);margin:16px 0 18px;}
.hero-copy h1 em{font-style:normal;color:var(--cyan);}
.hero-copy p.lead{color:#CBD5E1;font-size:17px;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px;}
.hero-note{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13.5px;}
.hero-note i{color:var(--ok);}
.hero-panel{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:26px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-panel h3{font-size:17px;margin-bottom:6px;}
.hero-panel .panel-sub{color:var(--muted);font-size:13.5px;margin-bottom:18px;}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(56,189,248,.18);}
.panel-row:last-of-type{border-bottom:0;}
.panel-row span{color:var(--muted);font-size:14px;}
.panel-row strong{font-size:15.5px;color:#fff;font-weight:800;}
.panel-row strong.ok{color:#86EFAC;}

/* ===== Stats ===== */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.stat-card{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;transition:var(--t);
}
.stat-card:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:0 0 26px rgba(37,99,235,.28);}
.stat-value{font-size:26px;font-weight:800;color:var(--cyan);letter-spacing:-.03em;}
.stat-label{color:var(--muted);font-size:14px;margin-top:6px;}

/* ===== Reason cards ===== */
.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.reason-card{
  background:linear-gradient(160deg,rgba(12,28,58,.72),rgba(6,14,32,.6));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;transition:var(--t);
}
.reason-card:hover{border-color:var(--line-2);box-shadow:0 0 28px rgba(56,189,248,.22);transform:translateY(-4px);}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(37,99,235,.2);border:1px solid var(--line-2);color:var(--cyan);
  font-size:19px;margin-bottom:16px;
}
.reason-card h3{font-size:17px;margin-bottom:9px;}
.reason-card p{color:var(--muted);font-size:14.5px;}

/* ===== Compare networks ===== */
.compare{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(6,14,32,.55);}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.4fr;gap:16px;padding:18px 22px;border-bottom:1px solid rgba(56,189,248,.12);align-items:center;}
.compare-row:last-child{border-bottom:0;}
.compare-row.head{background:rgba(37,99,235,.16);font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--cyan);font-weight:800;}
.compare-row .net{font-weight:800;font-size:15.5px;display:flex;align-items:center;gap:9px;}
.compare-row .net i{color:var(--cyan);}
.compare-row div{font-size:14.5px;color:var(--muted);}
.compare-row div strong{color:#fff;}

/* ===== Steps ===== */
.step-list{display:grid;gap:16px;}
.step-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:flex-start;
  background:rgba(8,18,41,.6);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;transition:var(--t);
}
.step-item:hover{border-color:var(--line-2);background:rgba(11,28,61,.72);}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#03111f;
  background:linear-gradient(135deg,#38BDF8,#2563EB);box-shadow:var(--glow-cyan);
}
.step-item h3{font-size:17px;margin-bottom:8px;}
.step-item p{color:var(--muted);font-size:14.8px;}

/* ===== Split ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow-card);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split-media .media-badge{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:9px;
  padding:9px 15px;border-radius:999px;background:rgba(3,7,18,.82);border:1px solid var(--line-2);
  font-size:13px;font-weight:700;color:var(--cyan);
}
.split h2{font-size:clamp(23px,2.8vw,33px);margin:14px 0 16px;}
.split p.intro{color:var(--muted);margin-bottom:20px;}
.check-list{display:grid;gap:13px;}
.check-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:flex-start;font-size:15px;color:#CBD5E1;}
.check-list li i{color:var(--ok);margin-top:4px;}

/* ===== Scenarios ===== */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scenario-card{
  background:rgba(6,14,32,.6);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;transition:var(--t);
}
.scenario-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:0 0 26px rgba(56,189,248,.2);}
.scenario-card h3{font-size:16.5px;margin:14px 0 10px;}
.scenario-card p{color:var(--muted);font-size:14.5px;}
.scenario-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.scenario-meta span{font-size:12.5px;color:var(--cyan-soft);background:rgba(56,189,248,.1);border:1px solid var(--line);padding:5px 11px;border-radius:999px;}

/* ===== Security ===== */
.secure-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.secure-item{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:20px;border-radius:var(--r-lg);background:rgba(8,18,41,.55);border:1px solid var(--line);}
.secure-item i{font-size:20px;color:var(--cyan);margin-top:3px;}
.secure-item h3{font-size:16px;margin-bottom:7px;}
.secure-item p{color:var(--muted);font-size:14.5px;}

/* ===== Posts ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
  display:flex;flex-direction:column;background:rgba(6,14,32,.62);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:var(--t);
}
.post-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:0 0 28px rgba(37,99,235,.26);}
.post-thumb{display:block;overflow:hidden;aspect-ratio:16/10;background:#0b1c3d;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.4,0,.2,1);}
.post-card:hover .post-thumb img{transform:scale(1.06);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:11px;flex:1;}
.post-body h3{font-size:16.5px;line-height:1.4;}
.post-body p{color:var(--muted);font-size:14.3px;}
.post-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--dim);margin-top:auto;padding-top:6px;}
.post-meta span{display:inline-flex;align-items:center;gap:6px;}
.empty-note{color:var(--muted);font-size:15px;padding:22px;border:1px dashed var(--line-2);border-radius:var(--r-lg);background:rgba(8,18,41,.45);}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;}
.faq-item{background:rgba(6,14,32,.6);border:1px solid var(--line);border-radius:var(--r-md);transition:var(--t);}
.faq-item[open]{border-color:var(--line-2);background:rgba(11,28,61,.68);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--cyan);transition:var(--t);flex-shrink:0;
}
.faq-item[open] summary::after{content:"\f068";}
.faq-item .faq-a{padding:0 22px 20px;color:var(--muted);font-size:14.8px;}

/* ===== CTA ===== */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(3,7,18,.94),rgba(9,24,52,.86)),url('/assets/images/266224333c96c6de.jpg');
  background-size:cover;background-position:center;padding:70px 0;
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(24px,3vw,36px);margin:14px 0 16px;}
.cta-inner p{color:#CBD5E1;}
.cta-points{display:grid;gap:11px;margin-top:20px;}
.cta-points li{display:flex;align-items:center;gap:11px;font-size:15px;color:#E2E8F0;}
.cta-points i{color:var(--cyan);}
.cta-form{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-form h3{font-size:18px;margin-bottom:8px;}
.cta-form .form-sub{color:var(--muted);font-size:13.8px;margin-bottom:20px;}
.field{margin-bottom:15px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--cyan-soft);margin-bottom:7px;letter-spacing:.02em;}
.field input,.field select{
  width:100%;padding:13px 15px;border-radius:var(--r-md);
  background:rgba(3,7,18,.72);border:1px solid var(--line);color:#fff;font-size:15px;
  transition:var(--t);appearance:none;
}
.field input::placeholder{color:var(--dim);}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16);outline:none;}
.field-hint{color:var(--dim);font-size:12.5px;margin-top:9px;line-height:1.55;}

/* ===== Footer ===== */
.site-footer{background:linear-gradient(180deg,#040b1c,#030712);border-top:1px solid var(--line);padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:360px;}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);margin-bottom:15px;}
.footer-col a{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;transition:var(--t);}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);color:var(--dim);font-size:13.5px;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--cyan-soft);font-size:12.5px;font-weight:600;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;min-height:52px;
  padding:13px 20px;border-radius:999px;
  color:#E6F6FF;font-size:13.5px;font-weight:700;letter-spacing:.01em;
  background:
    linear-gradient(rgba(7,10,22,.88),rgba(7,10,22,.88)) padding-box,
    linear-gradient(135deg,#A3E635,#06B6D4 60%,#38BDF8) border-box;
  border:1px solid transparent;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  opacity:.8;transition:var(--t);
}
.fab i{font-size:17px;color:#7DD3FC;}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 32px rgba(6,182,212,.7);}
.fab:hover i{animation:fabFlick .45s ease-in-out 2;}
.fab:active{transform:translateY(0) scale(.96);box-shadow:0 0 14px rgba(236,72,153,.6);}
.fab-dot{
  position:absolute;top:7px;right:9px;width:9px;height:9px;border-radius:50%;
  background:#EF4444;box-shadow:0 0 10px #EF4444;animation:fabBlink 1.5s ease-in-out infinite;
}
@keyframes fabBlink{0%,100%{opacity:1;}50%{opacity:.25;}}
@keyframes fabFlick{0%,100%{opacity:1;}50%{opacity:.35;}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{display:none;}
  .header-actions{margin-left:auto;}
  .nav-toggle{display:grid;place-items:center;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .reason-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .scenario-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .split{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .grid-2,.grid-3,.grid-4,.secure-grid,.scenario-grid{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr 1fr;gap:10px;padding:16px 18px;}
  .compare-row.head{display:none;}
  .compare-row div::before{content:attr(data-label);display:block;font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim);margin-bottom:3px;}
  .compare-row .net{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .header-inner{min-height:66px;gap:10px;}
  .brand-mark{width:38px;height:38px;font-size:17px;border-radius:11px;}
  .brand-text strong{font-size:13.5px;}
  .brand-text span{font-size:9.5px;letter-spacing:.08em;}
  .header-actions .btn{padding:9px 12px;font-size:13px;}
  .btn{padding:11px 17px;font-size:14.5px;}
  .post-grid{grid-template-columns:1fr;}
  .stat-value{font-size:22px;}
  .faq-item summary{font-size:15px;padding:16px 17px;}
  .faq-item .faq-a{padding:0 17px 17px;}
  .cta-form{padding:22px;}
  .fab{left:12px;bottom:86px;padding:11px 15px;font-size:12.5px;min-height:48px;}
  .fab span.fab-label{display:none;}
}