/* roulang page: index */
:root{
  --bg:#08090F;
  --bg-2:#0D111E;
  --bg-3:#111827;
  --surface:rgba(13,17,30,.72);
  --surface-strong:rgba(13,17,30,.94);
  --accent:#0052FF;
  --cyan:#00F0FF;
  --text:#FFFFFF;
  --muted:#CBD5E1;
  --muted-2:#94A3B8;
  --line:rgba(0,240,255,.16);
  --line-strong:rgba(0,240,255,.34);
  --shadow-glow:0 0 25px rgba(0,240,255,.15);
  --shadow-cyan:0 0 28px rgba(0,240,255,.42);
  --radius-sm:12px;
  --radius-md:18px;
  --radius-lg:26px;
  --radius-pill:999px;
  --font:'Be Vietnam Pro',system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:var(--cyan);transition:.2s}
a:hover{color:#80F6FF}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.25;color:var(--text)}
p{margin-bottom:1rem}
.container{max-width:1200px}
.section-pad{padding:72px 0}
.bg-dark-section{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}

/* Navbar */
.custom-nav{
  background:rgba(8,9,15,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding-top:12px;
  padding-bottom:12px;
}
.navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  line-height:1.15;
  font-size:1.15rem;
  white-space:nowrap;
}
.navbar-brand:hover{color:#fff}
.brand-icon{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(0,82,255,.3),rgba(0,240,255,.18));
  border:1px solid var(--line-strong);
  color:var(--cyan);
  font-size:1.15rem;
}
.navbar-nav .nav-link{
  color:var(--muted);
  font-weight:500;
  padding:8px 14px;
  border-radius:10px;
  transition:.2s;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active{
  color:var(--cyan);
  background:rgba(0,240,255,.08);
}
.btn-login{
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:8px 16px;
  font-weight:600;
  font-size:.9rem;
  background:transparent;
}
.btn-login:hover{
  color:var(--cyan);
  border-color:var(--cyan);
  background:rgba(0,240,255,.06);
}
.btn-signup{
  background:linear-gradient(135deg,#0052FF 0%,#00F0FF 100%);
  color:#fff;
  border:none;
  border-radius:var(--radius-pill);
  padding:9px 20px;
  font-weight:700;
  font-size:.9rem;
  box-shadow:0 0 20px rgba(0,240,255,.35);
}
.btn-signup:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(0,240,255,.55);
}
.navbar-toggler{
  border:1px solid var(--line);
  border-radius:10px;
  padding:7px 10px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(0,240,255,.2)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280,240,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero */
.hero-section{
  position:relative;
  min-height:650px;
  display:flex;
  align-items:center;
  padding:110px 0 85px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,9,15,.84) 0%,rgba(8,9,15,.72) 50%,rgba(8,9,15,.96) 100%);
  backdrop-filter:blur(2px);
}
.hero-content{position:relative;z-index:2}
.hero-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:42px;
}
.hero-tabs a{
  color:#D1F2EB;
  background:rgba(8,9,15,.55);
  border:1px solid rgba(0,240,255,.28);
  padding:10px 18px;
  border-radius:var(--radius-pill);
  backdrop-filter:blur(12px);
  font-size:.88rem;
  font-weight:600;
  transition:.25s;
}
.hero-tabs a:hover,
.hero-tabs a.active{
  background:rgba(0,240,255,.16);
  border-color:var(--cyan);
  color:#fff;
  transform:translateY(-2px);
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(0,240,255,.1);
  border:1px solid rgba(0,240,255,.35);
  color:var(--cyan);
  padding:8px 15px;
  border-radius:var(--radius-pill);
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.02em;
  margin-bottom:20px;
}
.hero-main h1{
  font-size:clamp(2.2rem,5vw,4rem);
  font-weight:800;
  line-height:1.15;
  max-width:920px;
  margin-bottom:22px;
  text-shadow:0 4px 28px rgba(0,0,0,.6);
}
.hero-main p{
  max-width:780px;
  color:var(--muted);
  font-size:1.06rem;
  line-height:1.7;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.btn-glow{
  background:linear-gradient(135deg,#0052FF 0%,#00F0FF 100%);
  border:none;
  color:#fff;
  border-radius:var(--radius-pill);
  padding:13px 30px;
  font-weight:700;
  box-shadow:0 0 22px rgba(0,240,255,.4);
  transition:.25s;
}
.btn-glow:hover{
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 0 38px rgba(0,240,255,.7);
}
.btn-ghost{
  border:1px solid var(--cyan);
  color:var(--cyan);
  background:rgba(0,240,255,.05);
  border-radius:var(--radius-pill);
  padding:13px 28px;
  font-weight:700;
  backdrop-filter:blur(8px);
  transition:.25s;
}
.btn-ghost:hover{
  background:rgba(0,240,255,.15);
  color:#fff;
  transform:translateY(-3px);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:34px;
  margin-top:42px;
  background:rgba(8,9,15,.42);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 26px;
  backdrop-filter:blur(12px);
  max-width:760px;
}
.hero-stats strong{
  display:block;
  font-size:1.9rem;
  font-weight:800;
  color:var(--cyan);
  line-height:1.2;
}
.hero-stats span{
  color:var(--muted);
  font-size:.88rem;
}

/* General section heading */
.section-heading{
  margin-bottom:48px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--cyan);
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:.78rem;
  margin-bottom:14px;
}
.section-heading h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  font-weight:800;
  max-width:800px;
}
.section-heading p{
  color:var(--muted);
  max-width:720px;
  font-size:1rem;
  line-height:1.7;
}

/* Gateway cards */
.gateway-card{
  display:block;
  height:100%;
  border-radius:var(--radius-md);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--text);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.gateway-card:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 40px rgba(0,0,0,.45),var(--shadow-glow);
  border-color:var(--line-strong);
  color:var(--text);
}
.gateway-card img{
  width:100%;
  height:185px;
  object-fit:cover;
}
.gateway-card-large img{
  height:320px;
}
.gateway-body{
  padding:24px;
}
.gateway-body h3{
  font-size:1.25rem;
  margin:12px 0 10px;
}
.gateway-body p{
  color:var(--muted-2);
  font-size:.93rem;
  line-height:1.65;
  margin:0;
}
.badge-glow{
  display:inline-block;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  background:rgba(0,240,255,.12);
  color:var(--cyan);
  border:1px solid rgba(0,240,255,.36);
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.02em;
}

/* Milestone timeline */
.milestone-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px;
}
.milestone-item{
  position:relative;
  padding-left:36px;
  padding-bottom:28px;
  border-left:1px solid var(--line-strong);
}
.milestone-item:last-child{
  padding-bottom:0;
}
.milestone-dot{
  position:absolute;
  left:-8px;
  top:2px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:var(--bg);
  border:3px solid var(--cyan);
  box-shadow:0 0 12px rgba(0,240,255,.55);
}
.milestone-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:8px;
  background:rgba(0,240,255,.12);
  color:var(--cyan);
  font-size:.8rem;
  font-weight:700;
  margin-bottom:8px;
}
.milestone-item h3{
  font-size:1.12rem;
  margin-bottom:8px;
}
.milestone-item p{
  color:var(--muted);
  font-size:.92rem;
  margin:0;
}

/* News */
.news-list{
  display:flex;
  flex-direction:column;
  gap:0;
}
.news-item{
  border:1px solid var(--line);
  border-radius:0;
  background:var(--surface);
  transition:.25s;
  margin-bottom:14px;
  overflow:hidden;
}
.news-item:first-of-type{
  border-top-left-radius:var(--radius-md);
  border-top-right-radius:var(--radius-md);
}
.news-item:last-of-type{
  border-bottom-left-radius:var(--radius-md);
  border-bottom-right-radius:var(--radius-md);
}
.news-item:hover{
  border-color:var(--line-strong);
  background:rgba(0,240,255,.05);
  transform:translateY(-2px);
}
.news-link{
  display:block;
  padding:22px 24px;
  color:var(--text);
}
.news-link:hover{
  color:var(--text);
}
.news-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  margin-bottom:10px;
}
.news-category{
  background:rgba(0,82,255,.18);
  color:#9BC4FF;
  border:1px solid rgba(0,82,255,.4);
  border-radius:var(--radius-pill);
  padding:5px 12px;
  font-size:.75rem;
  font-weight:700;
}
.news-time{
  color:var(--muted-2);
  font-size:.82rem;
}
.news-title{
  font-size:1.15rem;
  font-weight:700;
  margin-bottom:8px;
}
.news-summary{
  color:var(--muted);
  font-size:.92rem;
  margin:0;
  line-height:1.65;
}
.news-empty{
  background:rgba(13,17,30,.65);
  border:1px dashed var(--line);
  border-radius:var(--radius-md);
  padding:30px;
  color:var(--muted);
  text-align:center;
}
.recommend-card{
  background:var(--surface-strong);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:sticky;
  top:90px;
}
.recommend-card img{
  width:100%;
  height:190px;
  object-fit:cover;
}
.recommend-body{
  padding:24px;
}
.recommend-badge{
  display:inline-block;
  padding:6px 13px;
  background:rgba(0,240,255,.14);
  border:1px solid rgba(0,240,255,.4);
  color:var(--cyan);
  border-radius:var(--radius-pill);
  font-size:.75rem;
  font-weight:700;
  margin-bottom:12px;
}
.recommend-body h3{
  font-size:1.15rem;
  line-height:1.45;
  margin-bottom:12px;
}
.recommend-body p{
  color:var(--muted);
  font-size:.9rem;
  margin-bottom:18px;
}

/* Trust cards */
.trust-card{
  height:100%;
  padding:26px;
  border-radius:var(--radius-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:.25s;
}
.trust-card:hover{
  border-color:var(--line-strong);
  transform:translateY(-4px);
  box-shadow:var(--shadow-glow);
}
.trust-icon{
  width:52px;
  height:52px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:rgba(0,240,255,.12);
  border:1px solid rgba(0,240,255,.32);
  color:var(--cyan);
  font-size:1.3rem;
  margin-bottom:18px;
}
.trust-card h3{
  font-size:1.12rem;
  margin-bottom:10px;
}
.trust-card p{
  color:var(--muted);
  font-size:.9rem;
  margin:0;
}

/* Pricing */
.pricing-card{
  height:100%;
  padding:34px 28px;
  border-radius:var(--radius-lg);
  background:var(--surface);
  border:1px solid var(--line);
  transition:.25s;
  position:relative;
}
.pricing-card.recommended{
  border-color:var(--cyan);
  background:rgba(0,82,255,.1);
  box-shadow:0 0 35px rgba(0,240,255,.18);
  transform:translateY(-8px);
}
.pricing-card:hover{
  border-color:var(--line-strong);
  transform:translateY(-6px);
}
.pricing-card.recommended:hover{
  transform:translateY(-12px);
}
.pricing-tag{
  position:absolute;
  top:-13px;
  left:50%;
  transform:translateX(-50%);
  background:linear-gradient(135deg,#0052FF,#00F0FF);
  color:#fff;
  font-size:.75rem;
  font-weight:800;
  letter-spacing:.04em;
  padding:6px 16px;
  border-radius:var(--radius-pill);
  white-space:nowrap;
  box-shadow:0 0 18px rgba(0,240,255,.45);
}
.pricing-name{
  font-size:1rem;
  color:var(--cyan);
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:10px;
}
.pricing-price{
  font-size:2.2rem;
  font-weight:800;
  margin-bottom:18px;
}
.pricing-price small{
  font-size:.9rem;
  color:var(--muted);
  font-weight:400;
}
.pricing-desc{
  color:var(--muted);
  font-size:.92rem;
  margin-bottom:22px;
  line-height:1.65;
}
.pricing-list{
  list-style:none;
  padding:0;
  margin:0 0 26px;
}
.pricing-list li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  color:var(--muted);
  font-size:.9rem;
  margin-bottom:10px;
}
.pricing-list i{
  color:var(--cyan);
  margin-top:4px;
  font-size:.85rem;
}
.btn-pricing{
  display:block;
  text-align:center;
  width:100%;
  padding:12px 20px;
  border-radius:var(--radius-pill);
  font-weight:700;
  border:1px solid var(--cyan);
  color:var(--cyan);
  background:transparent;
  transition:.25s;
}
.btn-pricing:hover{
  background:rgba(0,240,255,.12);
  color:#fff;
  transform:translateY(-2px);
}
.recommended .btn-pricing{
  background:linear-gradient(135deg,#0052FF,#00F0FF);
  color:#fff;
  border:none;
  box-shadow:0 0 20px rgba(0,240,255,.4);
}
.recommended .btn-pricing:hover{
  box-shadow:0 0 32px rgba(0,240,255,.7);
  transform:translateY(-3px);
}

/* App section */
.app-panel{
  background:rgba(13,17,30,.72);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px;
  backdrop-filter:blur(12px);
}
.app-feature{
  display:flex;
  align-items:flex-start;
  gap:15px;
  margin-bottom:20px;
}
.app-feature i{
  width:40px;
  height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:rgba(0,240,255,.12);
  border:1px solid var(--line-strong);
  color:var(--cyan);
  font-size:1rem;
  flex-shrink:0;
}
.app-feature h3{
  font-size:1rem;
  margin-bottom:5px;
}
.app-feature p{
  color:var(--muted);
  font-size:.88rem;
  margin:0;
}

/* Footer */
.site-footer{
  background:#0B0F1A;
  border-top:1px solid var(--line);
  padding:65px 0 25px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:1.05rem;
  margin-bottom:20px;
}
.footer-brand i{
  color:var(--cyan);
  font-size:1.2rem;
}
.site-footer p{
  color:var(--muted-2);
  font-size:.9rem;
  line-height:1.7;
  max-width:420px;
}
.footer-title{
  color:#fff;
  font-size:.95rem;
  font-weight:700;
  letter-spacing:.05em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:var(--muted);
  font-size:.9rem;
  transition:.2s;
}
.footer-links a:hover{
  color:var(--cyan);
  padding-left:3px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:45px;
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:15px;
  color:#64748B;
  font-size:.85rem;
}
.footer-bottom a{
  color:#64748B;
}
.footer-bottom a:hover{
  color:var(--cyan);
}

/* FAB */
.fab-float{
  position:fixed;
  left:1rem;
  bottom:6rem;
  z-index:1050;
  width:56px;
  height:56px;
  border-radius:50%;
  background:rgba(8,9,15,.72);
  backdrop-filter:blur(14px);
  border:2px solid var(--cyan);
  box-shadow:0 0 18px rgba(0,240,255,.55);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--cyan);
  font-size:1.45rem;
  opacity:.75;
  transition:.25s;
}
.fab-float:hover{
  opacity:1;
  transform:scale(1.1);
  box-shadow:0 0 28px rgba(0,240,255,.85);
  color:#fff;
}
.fab-notify{
  position:absolute;
  top:-4px;
  right:-4px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:#FF007F;
  border:2px solid #0B0F1A;
  animation:pulse-notify 1.8s infinite;
}
@keyframes pulse-notify{
  0%{transform:scale(1);opacity:1}
  70%{transform:scale(1.9);opacity:0}
  100%{transform:scale(1);opacity:0}
}

/* Responsive */
@media (max-width: 991px){
  .hero-section{min-height:600px;padding:95px 0 65px}
  .hero-main h1{font-size:2.3rem}
  .hero-stats{gap:20px;padding:18px}
  .hero-stats strong{font-size:1.5rem}
  .gateway-card-large img{height:230px}
  .milestone-panel{padding:26px}
  .recommend-card{position:static;margin-top:24px}
  .pricing-card.recommended{transform:none}
}
@media (max-width: 767px){
  .section-pad{padding:52px 0}
  .navbar-brand{font-size:1rem}
  .navbar-brand .brand-icon{width:34px;height:34px}
  .btn-login{padding:6px 12px}
  .btn-signup{padding:7px 14px}
  .hero-section{min-height:auto;padding:85px 0 55px}
  .hero-tabs{margin-bottom:28px;gap:8px}
  .hero-tabs a{padding:8px 14px;font-size:.8rem}
  .hero-main h1{font-size:1.9rem}
  .hero-main p{font-size:.95rem}
  .hero-actions{gap:10px}
  .btn-glow,.btn-ghost{padding:11px 20px;font-size:.95rem}
  .hero-stats{gap:16px;padding:16px}
  .hero-stats strong{font-size:1.3rem}
  .gateway-card img{height:170px}
  .gateway-card-large img{height:220px}
  .section-heading h2{font-size:1.6rem}
  .pricing-card.recommended{margin-top:20px}
}
@media (max-width: 520px){
  .navbar .container{
    flex-wrap:wrap;
  }
  .btn-login{
    display:none;
  }
  .btn-signup{
    padding:7px 12px;
    font-size:.82rem;
  }
  .hero-main h1{font-size:1.6rem}
  .hero-stats{flex-direction:column;gap:12px}
  .hero-tabs a{width:100%;text-align:center}
  .milestone-item{padding-left:28px}
  .news-link{padding:18px}
}

/* roulang page: category1 */
:root {
            --bg-deep: #08090f;
            --bg-cyber: #0d111e;
            --bg-card: #111827;
            --bg-glass: rgba(13, 17, 30, 0.72);
            --accent-blue: #0052ff;
            --accent-cyan: #00f0ff;
            --accent-neon-lime: #ccff00;
            --accent-red: #ff3b7c;
            --accent-green: #00e099;
            --accent-amber: #ffbf00;
            --text-white: #ffffff;
            --text-silver: #cbd5e1;
            --text-muted: #7a8499;
            --text-dark: #0b0f1a;
            --border-subtle: rgba(0, 240, 255, 0.16);
            --border-neon: rgba(0, 240, 255, 0.48);
            --border-soft: rgba(203, 213, 225, 0.1);
            --shadow-glow-blue: 0 0 28px rgba(0, 82, 255, 0.35);
            --shadow-glow-cyan: 0 0 22px rgba(0, 240, 255, 0.28);
            --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.5);
            --shadow-fab: 0 0 18px rgba(0, 240, 255, 0.45);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-pill: 999px;
            --spacing-xs: 8px;
            --spacing-sm: 14px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 88px;
            --font-body: 'Be Vietnam Pro', sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            --max-width: 1200px;
            --transition-fast: 0.18s ease;
            --transition-med: 0.35s ease;
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.62;
            color: var(--text-silver);
            background: var(--bg-deep);
            background-image: 
                linear-gradient(rgba(0, 240, 255, 0.018) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.018) 1px, transparent 1px),
                radial-gradient(ellipse at 50% -10%, rgba(0, 82, 255, 0.22), transparent 55%),
                radial-gradient(ellipse at 90% 20%, rgba(0, 240, 255, 0.07), transparent 50%),
                radial-gradient(ellipse at 5% 70%, rgba(0, 82, 255, 0.1), transparent 45%);
            background-size: 44px 44px, 44px 44px, 100% 100%, 100% 100%, 100% 100%;
            background-attachment: fixed;
            overflow-x: hidden;
            padding-bottom: 76px;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--text-white);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 4px;
            border-radius: 6px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-white);
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.22;
        }

        .container {
            max-width: var(--max-width);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ---- Header / Navigation ---- */
        .site-header {
            background: rgba(8, 9, 15, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding-top: 8px;
            padding-bottom: 8px;
            z-index: 1030;
        }

        .custom-nav {
            padding-left: 0;
            padding-right: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.02rem;
            line-height: 1.25;
            color: var(--text-white);
            letter-spacing: -0.015em;
        }

        .navbar-brand:hover {
            color: var(--text-white);
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(145deg, rgba(0, 82, 255, 0.28), rgba(0, 240, 255, 0.14));
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            color: var(--accent-cyan);
            font-size: 1.25rem;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.22);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .navbar-brand:hover .brand-icon {
            transform: rotate(-6deg) scale(1.04);
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.4);
        }

        .navbar-brand span {
            display: block;
        }

        .navbar-brand span {
            font-size: 0.96rem;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .custom-nav .nav-link {
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.93rem;
            padding: 8px 12px;
            border-radius: 8px;
            position: relative;
            letter-spacing: -0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .custom-nav .nav-link:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.07);
        }

        .custom-nav .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            box-shadow: inset 0 0 0 1px var(--border-subtle);
        }

        .custom-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 10px;
            background: transparent;
            color: var(--text-white);
            border: 1px solid var(--border-soft);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(203, 213, 225, 0.24);
        }

        .btn-signup {
            font-weight: 700;
            font-size: 0.9rem;
            padding: 8px 18px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: var(--text-white);
            border: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
            box-shadow: 0 0 16px rgba(0, 82, 255, 0.4);
            transition: all var(--transition-fast);
        }
        .btn-signup:hover {
            color: var(--text-white);
            box-shadow: 0 0 26px rgba(0, 240, 255, 0.55);
            background: linear-gradient(135deg, #0066ff, #00d9e8);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            padding: 8px 10px;
            border-radius: 8px;
            background: rgba(13, 17, 30, 0.7);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.3);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 240, 255, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-brand {
                font-size: 0.88rem;
            }
            .navbar-brand span {
                font-size: 0.83rem;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 12px;
                font-size: 0.83rem;
            }
            .custom-nav .nav-link {
                padding: 10px 8px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 0.8rem;
            }
            .navbar-brand span {
                font-size: 0.76rem;
            }
            .btn-login {
                padding: 6px 9px;
                font-size: 0.75rem;
            }
            .btn-signup {
                padding: 6px 11px;
                font-size: 0.75rem;
            }
        }

        /* ---- Buttons & Shared Components ---- */
        .btn-glow {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: var(--text-white);
            border: none;
            letter-spacing: -0.01em;
            box-shadow: var(--shadow-glow-blue), 0 4px 14px rgba(0, 0, 0, 0.35);
            transition: all var(--transition-med);
            text-decoration: none;
            overflow: hidden;
            cursor: pointer;
        }
        .btn-glow::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, 0.22) 48%, transparent 76%);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }
        .btn-glow:hover {
            color: var(--text-white);
            background: linear-gradient(135deg, #0066ff, #00e6f0);
            box-shadow: 0 0 34px rgba(0, 240, 255, 0.55), 0 8px 20px rgba(0, 0, 0, 0.35);
            transform: translateY(-2px);
            text-decoration: none;
        }
        .btn-glow:hover::before {
            transform: translateX(100%);
        }
        .btn-glow:active {
            transform: translateY(1px);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
        }

        .btn-outline-neon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 26px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.05);
            color: var(--accent-cyan);
            border: 1px solid var(--border-neon);
            letter-spacing: -0.01em;
            transition: all var(--transition-med);
            text-decoration: none;
            cursor: pointer;
            backdrop-filter: blur(8px);
        }
        .btn-outline-neon:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.15);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.3);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .tag-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.78rem;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
            text-transform: uppercase;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(8px);
            white-space: nowrap;
        }

        .offertag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 0.82rem;
            padding: 7px 16px;
            border-radius: 12px;
            background: rgba(0, 224, 153, 0.12);
            color: var(--accent-green);
            border: 1px solid rgba(0, 224, 153, 0.3);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .glass-card {
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
        }
        .glass-card:hover {
            border-color: var(--border-neon);
            transform: translateY(-4px);
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.16), var(--shadow-card);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 26px;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: 0 0 8px var(--accent-cyan);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.65rem, 3.4vw, 2.3rem);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.65;
        }

        /* ---- Hero ---- */
        .hero-ai {
            position: relative;
            padding: 72px 0 96px;
            overflow: hidden;
            background: 
                linear-gradient(180deg, rgba(8, 9, 15, 0.52) 0%, rgba(13, 17, 30, 0.92) 100%),
                url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-ai::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 15%, rgba(0, 82, 255, 0.25), transparent 48%),
                        radial-gradient(ellipse at 80% 65%, rgba(0, 240, 255, 0.12), transparent 42%);
            pointer-events: none;
            z-index: 0;
        }
        .hero-ai .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 52px;
            align-items: center;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: clamp(2rem, 4.6vw, 3.15rem);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.025em;
            line-height: 1.18;
            margin-bottom: 18px;
            text-shadow: 0 0 32px rgba(0, 82, 255, 0.45);
        }
        .hero-title span.highlight {
            background: linear-gradient(120deg, var(--accent-cyan), #7bdfff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: none;
        }
        .hero-sub {
            font-size: 1.08rem;
            color: var(--text-silver);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.68;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 38px;
            padding-top: 24px;
            border-top: 1px solid var(--border-soft);
        }
        .hero-metric {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-metric .num {
            font-weight: 800;
            font-size: 1.55rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .hero-metric .lbl {
            font-size: 0.86rem;
            color: var(--text-muted);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual .visual-card {
            width: 100%;
            max-width: 420px;
            background: rgba(13, 17, 30, 0.75);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            box-shadow: 0 0 36px rgba(0, 82, 255, 0.25), var(--shadow-card);
            overflow: hidden;
            position: relative;
        }
        .hero-visual .visual-card img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
            filter: saturate(1.15) contrast(1.05) brightness(0.95);
        }
        .visual-card-overlay {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .visual-card-overlay .status-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .status-dot {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.83rem;
            font-weight: 600;
            color: var(--accent-green);
        }
        .status-dot::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px var(--accent-green);
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .visual-card-overlay h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin: 0;
            color: var(--text-white);
        }
        .visual-card-overlay p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .visual-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            background: rgba(0, 82, 255, 0.18);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.28);
            white-space: nowrap;
        }

        /* ---- Trick Trio Section ---- */
        .section-tricks {
            padding: 88px 0 72px;
            background: transparent;
        }
        .tricks-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
            margin-top: 44px;
        }
        .trick-card {
            padding: 30px 26px;
            border-radius: var(--radius-lg);
            background: rgba(13, 17, 30, 0.65);
            border: 1px solid var(--border-soft);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: transform var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
            position: relative;
            overflow: hidden;
        }
        .trick-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 68%);
            border-radius: 50%;
            pointer-events: none;
        }
        .trick-card:hover {
            border-color: var(--border-neon);
            transform: translateY(-6px);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.14), var(--shadow-card);
        }
        .trick-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: linear-gradient(145deg, rgba(0, 82, 255, 0.25), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-subtle);
            color: var(--accent-cyan);
            font-size: 1.35rem;
            margin-bottom: 18px;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.18);
        }
        .trick-card h3 {
            font-size: 1.22rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
        }
        .trick-card p {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .trick-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: gap var(--transition-fast), color var(--transition-fast);
        }
        .trick-link i {
            font-size: 0.78rem;
        }
        .trick-link:hover {
            gap: 12px;
            color: var(--text-white);
        }

        /* ---- Scenario Demo Section ---- */
        .section-scenario {
            padding: 72px 0 88px;
            background: 
                linear-gradient(180deg, rgba(8, 9, 15, 0.68), rgba(13, 17, 30, 0.86)),
                url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 52px;
            align-items: center;
            margin-top: 40px;
        }
        .scenario-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }
        .scenario-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            filter: brightness(0.92) saturate(1.1);
        }
        .scenario-image .image-tag {
            position: absolute;
            left: 16px;
            bottom: 16px;
            background: rgba(8, 9, 15, 0.8);
            backdrop-filter: blur(10px);
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            border: 1px solid var(--border-subtle);
        }
        .scenario-steps {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .scenario-steps li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: rgba(13, 17, 30, 0.55);
            padding: 18px 20px;
            border-radius: 14px;
            border: 1px solid var(--border-soft);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .scenario-steps li:hover {
            border-color: var(--border-neon);
            background: rgba(0, 240, 255, 0.04);
        }
        .step-num {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--accent-blue);
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.88rem;
            box-shadow: 0 0 12px rgba(0, 82, 255, 0.4);
        }
        .scenario-steps h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 6px;
        }
        .scenario-steps p {
            font-size: 0.92rem;
            color: var(--text-silver);
            margin: 0;
            line-height: 1.6;
        }

        /* ---- Social Proof / Stats ---- */
        .section-social {
            padding: 80px 0;
        }
        .social-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 42px;
        }
        .social-stat {
            text-align: left;
            padding: 22px 20px;
            background: rgba(13, 17, 30, 0.6);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .social-stat:hover {
            border-color: var(--border-neon);
            transform: translateY(-2px);
        }
        .social-stat .big-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }
        .social-stat .stat-lbl {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* ---- FAQ ---- */
        .section-faq {
            padding: 72px 0 88px;
            background: transparent;
        }
        .faq-list {
            max-width: 820px;
            margin: 40px auto 0;
        }
        .faq-item {
            border: 1px solid var(--border-soft);
            border-radius: 14px;
            margin-bottom: 14px;
            background: rgba(13, 17, 30, 0.55);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-subtle);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 22px;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            letter-spacing: -0.01em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .faq-question .fa-chevron-down {
            transition: transform var(--transition-fast);
            font-size: 0.9rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 22px 20px;
            color: var(--text-silver);
            font-size: 0.94rem;
            line-height: 1.65;
        }

        /* ---- Final CTA ---- */
        .section-cta {
            padding: 80px 0;
            background: 
                radial-gradient(ellipse at 30% 50%, rgba(0, 82, 255, 0.2), transparent 55%),
                radial-gradient(ellipse at 75% 40%, rgba(0, 240, 255, 0.12), transparent 50%),
                var(--bg-cyber);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .cta-card {
            background: rgba(13, 17, 30, 0.72);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            box-shadow: 0 0 40px rgba(0, 82, 255, 0.2), var(--shadow-card);
        }
        .cta-card h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .cta-card p {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ---- Sticky Conversion Bar ---- */
        .sticky-conversion-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 1045;
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid var(--border-neon);
            padding: 10px 0;
            box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.55);
        }
        .conversion-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .conversion-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .conversion-info .conv-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
        }
        .conversion-info .conv-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .conversion-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .btn-conv {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.86rem;
            padding: 10px 18px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: var(--text-white);
            border: none;
            white-space: nowrap;
            box-shadow: 0 0 14px rgba(0, 82, 255, 0.35);
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-conv:hover {
            color: var(--text-white);
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.5);
            transform: translateY(-1px);
        }
        .btn-conv-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.86rem;
            padding: 10px 16px;
            border-radius: 10px;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--border-subtle);
            white-space: nowrap;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-conv-secondary:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
        }

        /* ---- Floating Action Button (Option 2: Cyber & Neon) ---- */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 104px;
            z-index: 1046;
            width: 54px;
            height: 54px;
            min-width: 48px;
            min-height: 48px;
            border-radius: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: rgba(8, 9, 15, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.72), rgba(8, 9, 15, 0.72)), 
                              linear-gradient(135deg, var(--accent-cyan), #ccff00);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45), 0 4px 14px rgba(0, 0, 0, 0.4);
            cursor: pointer;
            opacity: 0.65;
            animation: fab-float 3.2s ease-in-out infinite;
            transition: all var(--transition-med);
            text-decoration: none;
            color: var(--accent-cyan);
            font-size: 1.3rem;
        }
        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.7), 0 0 14px rgba(204, 255, 0, 0.35), 0 6px 18px rgba(0, 0, 0, 0.45);
            transform: scale(1.08);
            color: #ccff00;
        }
        .fab-cyber:active {
            transform: scale(0.95);
            box-shadow: 0 0 22px rgba(255, 59, 124, 0.6);
            color: var(--accent-red);
        }
        .fab-cyber .fab-notification {
            position: absolute;
            top: -6px;
            right: -6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-deep);
            animation: fab-blink 1.6s infinite;
        }
        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes fab-blink {
            0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-red); }
            50% { opacity: 0.35; box-shadow: none; }
        }
        @media (max-width: 575.98px) {
            .fab-cyber {
                width: 50px;
                height: 50px;
                left: 12px;
                bottom: 98px;
                font-size: 1.15rem;
            }
        }

        /* ---- Footer ---- */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 64px 0 28px;
            color: var(--text-silver);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-white);
            letter-spacing: -0.015em;
            margin-bottom: 16px;
        }
        .footer-brand i {
            color: var(--accent-cyan);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.4));
        }
        .site-footer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 440px;
        }
        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            margin-top: 44px;
            padding-top: 20px;
            border-top: 1px solid var(--border-soft);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.83rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent-cyan);
        }
        .footer-bottom a:hover {
            color: var(--text-white);
        }

        /* ---- Responsive ---- */
        @media (max-width: 991.98px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-visual .visual-card {
                max-width: 100%;
            }
            .tricks-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .social-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-card {
                padding: 40px 24px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                padding-bottom: 68px;
            }
            .hero-ai {
                padding: 52px 0 68px;
            }
            .hero-metrics {
                gap: 22px;
            }
            .section-tricks,
            .section-scenario,
            .section-social,
            .section-faq,
            .section-cta {
                padding: 56px 0;
            }
            .conversion-bar-inner {
                gap: 10px;
            }
            .conversion-info .conv-sub {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-sub {
                font-size: 0.96rem;
            }
            .tricks-grid {
                grid-template-columns: 1fr;
            }
            .social-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .social-stat .big-num {
                font-size: 1.4rem;
            }
            .cta-card {
                padding: 30px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn-glow,
            .cta-actions .btn-outline-neon {
                width: 100%;
            }
            .conversion-actions .btn-conv {
                padding: 8px 12px;
                font-size: 0.78rem;
            }
            .conversion-actions .btn-conv-secondary {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: article */
/* ============ CSS VARIABLES ============ */
        :root {
            --bg-primary: #08090F;
            --bg-secondary: #0D111E;
            --bg-tertiary: #111827;
            --bg-card: rgba(13, 17, 30, 0.82);
            --bg-glass: rgba(255, 255, 255, 0.04);
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #8A94A6;
            --text-dark: #0D111E;
            --border-blue: rgba(0, 240, 255, 0.18);
            --border-glow: rgba(0, 240, 255, 0.45);
            --border-gold: rgba(255, 215, 0, 0.35);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-pill: 50px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
            --shadow-glow-blue: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow-blue-lg: 0 0 40px rgba(0, 240, 255, 0.45);
            --shadow-glow-gold: 0 0 20px rgba(255, 215, 0, 0.25);
            --font-primary: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ============ RESET & BASE ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-primary);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.62;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse at 15% 20%, rgba(0, 82, 255, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 75%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(204, 255, 0, 0.02) 0%, transparent 60%);
            pointer-events: none;
            z-index: -2;
        }

        body::after {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(0, 240, 255, 0.015) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.015) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
            z-index: -1;
        }

        a {
            text-decoration: none;
            color: var(--accent-cyan);
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--accent-cyan);
            text-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        ul, ol {
            list-style-position: inside;
        }

        ::selection {
            background: rgba(0, 240, 255, 0.25);
            color: var(--text-primary);
        }

        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(0, 240, 255, 0.25);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(0, 240, 255, 0.45);
        }

        /* ============ CONTAINER ============ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 820px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ NAVBAR ============ */
        .site-header {
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-blue);
            padding: 0;
            z-index: 1030;
            position: sticky;
            top: 0;
            width: 100%;
        }
        .custom-nav {
            min-height: 72px;
            padding: 8px 0;
            gap: 16px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 0.95rem;
            line-height: 1.25;
            color: var(--text-primary) !important;
            white-space: normal;
        }
        .navbar-brand:hover {
            color: var(--accent-cyan) !important;
        }
        .navbar-brand .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 50%;
            font-size: 1.2rem;
            color: var(--text-primary);
            box-shadow: var(--shadow-glow-blue);
            flex-shrink: 0;
        }
        .brand-icon i {
            color: #fff;
        }
        .navbar-brand span {
            display: inline-block;
            font-size: 0.85rem;
            letter-spacing: 0.01em;
        }
        .navbar-brand .brand-sub {
            display: block;
            font-weight: 500;
            font-size: 0.72rem;
            color: var(--accent-cyan);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }
        .custom-nav .navbar-nav {
            gap: 4px;
        }
        .custom-nav .nav-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-secondary) !important;
            padding: 10px 16px !important;
            border-radius: var(--radius-pill);
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .custom-nav .nav-link:hover {
            color: var(--accent-cyan) !important;
            background: rgba(0, 240, 255, 0.06);
        }
        .custom-nav .nav-link.active {
            color: var(--accent-cyan) !important;
            background: rgba(0, 240, 255, 0.12);
            box-shadow: inset 0 0 0 1px var(--border-blue);
        }
        .btn-login {
            font-size: 0.85rem;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .btn-signup {
            font-size: 0.85rem;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border: none;
            box-shadow: var(--shadow-glow-blue);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup:hover {
            color: #fff;
            box-shadow: var(--shadow-glow-blue-lg);
            transform: translateY(-1px);
        }
        .navbar-toggler {
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,240,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.25);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: transparent;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            list-style: none;
        }
        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-cyan);
            text-shadow: none;
        }
        .breadcrumb-nav .separator {
            color: rgba(138, 148, 166, 0.5);
            font-size: 0.7rem;
        }
        .breadcrumb-nav .current {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        /* ============ ARTICLE HERO ============ */
        .article-hero {
            position: relative;
            padding: 48px 0 56px;
            background: linear-gradient(180deg, rgba(13, 17, 30, 0.6) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-blue);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -25%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.12) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 55%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-hero .hero-content {
            position: relative;
            z-index: 2;
        }
        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            padding: 8px 18px;
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-pill);
            background: rgba(0, 240, 255, 0.06);
            margin-bottom: 20px;
            transition: var(--transition-base);
        }
        .article-category-tag i {
            font-size: 0.72rem;
        }
        .article-hero h1 {
            font-size: clamp(1.7rem, 4.5vw, 2.8rem);
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
            text-wrap: balance;
        }
        .article-hero .article-excerpt {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
            margin-bottom: 24px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        /* ============ ARTICLE MAIN BODY ============ */
        .article-main {
            padding: 40px 0 64px;
            background: transparent;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .article-content-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-lg);
            padding: 32px 40px;
            box-shadow: var(--shadow-md);
            transition: var(--transition-base);
        }
        .article-content-card:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }
        .article-cover-image {
            width: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-blue);
        }
        .article-cover-image img {
            width: 100%;
            height: auto;
            transition: var(--transition-slow);
        }
        .article-cover-image:hover img {
            transform: scale(1.02);
        }

        /* Article body typography */
        .article-body {
            font-size: 1rem;
            line-height: 1.72;
            color: var(--text-secondary);
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 32px 0 16px;
            padding-top: 12px;
            border-top: 2px solid var(--border-blue);
            letter-spacing: -0.01em;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 28px 0 14px;
            letter-spacing: -0.01em;
        }
        .article-body h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin: 22px 0 10px;
        }
        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
            text-justify: inter-word;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 20px;
            list-style-position: outside;
        }
        .article-body ul li,
        .article-body ol li {
            margin-bottom: 8px;
            padding-left: 6px;
        }
        .article-body ul {
            list-style-type: disc;
        }
        .article-body ol {
            list-style-type: decimal;
        }
        .article-body li::marker {
            color: var(--accent-cyan);
        }
        .article-body blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            background: rgba(0, 240, 255, 0.05);
            border-left: 4px solid var(--accent-cyan);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--text-primary);
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .article-body blockquote cite {
            display: block;
            margin-top: 10px;
            font-size: 0.82rem;
            font-style: normal;
            color: var(--text-muted);
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-blue);
        }
        .article-body a {
            color: var(--accent-cyan);
            font-weight: 600;
            border-bottom: 1px dashed rgba(0, 240, 255, 0.4);
        }
        .article-body a:hover {
            color: var(--text-primary);
            border-bottom-color: var(--accent-cyan);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.9rem;
        }
        .article-body table th {
            background: rgba(0, 82, 255, 0.18);
            color: var(--text-primary);
            font-weight: 700;
            text-align: left;
            padding: 12px 16px;
            border: 1px solid var(--border-blue);
            font-size: 0.86rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .article-body table td {
            padding: 12px 16px;
            border: 1px solid rgba(0, 240, 255, 0.1);
            color: var(--text-secondary);
        }
        .article-body table tr:nth-child(even) {
            background: rgba(255, 255, 255, 0.02);
        }
        .article-body code {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
        }
        .article-body pre {
            background: var(--bg-secondary);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md);
            padding: 20px;
            overflow-x: auto;
            margin: 20px 0;
            line-height: 1.5;
        }
        .article-body pre code {
            background: transparent;
            padding: 0;
            color: var(--text-secondary);
        }
        .article-body strong {
            color: var(--text-primary);
            font-weight: 700;
        }
        .article-body em {
            font-style: italic;
            color: var(--text-primary);
        }

        /* Pull quote */
        .pull-quote {
            margin: 32px 0;
            padding: 28px 32px;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.08) 0%, rgba(0, 240, 255, 0.05) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .pull-quote::before {
            content: '\f10d';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 16px;
            left: 24px;
            font-size: 2.2rem;
            color: rgba(0, 240, 255, 0.2);
            line-height: 1;
        }
        .pull-quote .quote-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.65;
            padding-left: 40px;
            font-style: italic;
        }
        .pull-quote .quote-source {
            display: block;
            margin-top: 14px;
            padding-left: 40px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        /* ============ AUTHOR BOX ============ */
        .author-box {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md);
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .author-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
            box-shadow: var(--shadow-glow-blue);
            flex-shrink: 0;
        }
        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 4px;
        }
        .author-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ============ NOT FOUND ============ */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-lg);
        }
        .not-found-box .icon {
            font-size: 3rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
            opacity: 0.6;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn {
            font-size: 0.95rem;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-glow-blue);
        }

        /* ============ SHARED SECTION STYLES ============ */
        .section-block {
            padding: 64px 0;
        }
        .section-block-alt {
            padding: 64px 0;
            background: rgba(13, 17, 30, 0.55);
            border-top: 1px solid var(--border-blue);
            border-bottom: 1px solid var(--border-blue);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.4rem, 3.5vw, 2.1rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            line-height: 1.3;
            text-align: left;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
            text-align: left;
        }

        /* ============ TIP CARDS (Related) ============ */
        .tip-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tip-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-blue), var(--shadow-md);
            transform: translateY(-4px);
        }
        .tip-card .tip-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.3), rgba(0, 240, 255, 0.25));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .tip-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .tip-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
            flex-grow: 1;
        }
        .tip-card .tip-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-top: 16px;
            transition: var(--transition-fast);
        }
        .tip-card .tip-link:hover {
            color: var(--text-primary);
            text-shadow: none;
        }
        .tip-card .tip-link i {
            font-size: 0.7rem;
            transition: var(--transition-fast);
        }
        .tip-card .tip-link:hover i {
            transform: translateX(4px);
        }

        /* ============ STATS ============ */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin: 32px 0;
        }
        .stat-item {
            background: var(--bg-glass);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: left;
            transition: var(--transition-base);
        }
        .stat-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-blue);
        }
        .stat-item .stat-number {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--accent-cyan);
            letter-spacing: -0.02em;
            line-height: 1.2;
            display: block;
        }
        .stat-item .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 6px;
            display: block;
            line-height: 1.5;
        }

        /* ============ SOCIAL PROOF ============ */
        .proof-card {
            background: var(--bg-card);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .proof-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-blue);
        }
        .proof-card .proof-quote {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
        }
        .proof-card .proof-author {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 16px;
        }
        .proof-card .proof-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }
        .proof-card .proof-name {
            font-size: 0.86rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }
        .proof-card .proof-tag {
            font-size: 0.74rem;
            color: var(--text-muted);
            margin: 0;
        }
        .proof-stars {
            color: var(--accent-gold);
            font-size: 0.82rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        /* ============ FAQ ============ */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-blue);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }
        .faq-accordion .accordion-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            letter-spacing: 0.01em;
            transition: var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent-cyan);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            filter: invert(50%) sepia(100%) saturate(500%) hue-rotate(140deg);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.2);
            border: none;
        }
        .faq-accordion .accordion-body {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            padding: 16px 22px 22px;
            background: rgba(255, 255, 255, 0.02);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 72px 0;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15) 0%, rgba(0, 240, 255, 0.08) 50%, rgba(204, 255, 0, 0.05) 100%);
            border-top: 1px solid var(--border-blue);
            border-bottom: 1px solid var(--border-blue);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.2) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: 10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 55%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-inner h2 {
            font-size: clamp(1.6rem, 4vw, 2.3rem);
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .cta-inner p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 700;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border: none;
            box-shadow: var(--shadow-glow-blue);
            transition: var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary-glow:hover {
            color: #fff;
            box-shadow: var(--shadow-glow-blue-lg);
            transform: translateY(-2px);
        }
        .btn-outline-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 700;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            color: var(--accent-cyan);
            background: transparent;
            border: 1px solid var(--border-glow);
            transition: var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-outline-glow:hover {
            background: rgba(0, 240, 255, 0.08);
            color: var(--text-primary);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-blue);
        }

        /* ============ FAB ============ */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            border-radius: var(--radius-pill);
            background: rgba(8, 9, 15, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
            transition: var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            opacity: 0.6;
            min-height: 52px;
            min-width: 52px;
            justify-content: center;
            animation: fabBreath 2.5s ease-in-out infinite;
        }
        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
            transform: scale(1.05);
            text-decoration: none;
        }
        .fab-cyber:active {
            transform: scale(0.95);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
        }
        .fab-cyber .fab-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            animation: fabFlicker 3s ease-in-out infinite;
        }
        .fab-cyber .fab-label {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .fab-cyber .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            background: #FF0040;
            border-radius: 50%;
            border: 2px solid rgba(8, 9, 15, 0.8);
            animation: fabPulse 1.2s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.3); }
            50% { box-shadow: 0 0 24px rgba(0, 240, 255, 0.5); }
        }
        @keyframes fabFlicker {
            0%, 93%, 100% { opacity: 1; }
            94% { opacity: 0.4; }
            96% { opacity: 1; }
            98% { opacity: 0.6; }
        }
        @keyframes fabPulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.5); opacity: 0.6; }
        }

        /* ============ STICKY BOTTOM BAR ============ */
        .sticky-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 1040;
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-blue);
            padding: 12px 0;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.4);
        }
        .sticky-bottom-bar .bar-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sticky-bottom-bar .bar-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .sticky-bottom-bar .bar-text strong {
            color: var(--accent-cyan);
            font-weight: 700;
        }
        .sticky-bottom-bar .btn-bar-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border: none;
            box-shadow: var(--shadow-glow-blue);
            transition: var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
        }
        .sticky-bottom-bar .btn-bar-cta:hover {
            color: #fff;
            box-shadow: var(--shadow-glow-blue-lg);
            transform: translateY(-1px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(13, 17, 30, 0.85);
            border-top: 1px solid var(--border-blue);
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .site-footer .footer-brand i {
            font-size: 1.4rem;
            color: var(--accent-gold);
        }
        .site-footer .footer-brand span {
            line-height: 1.3;
        }
        .site-footer p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 0;
        }
        .site-footer .footer-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.7rem;
            color: var(--accent-cyan);
            transition: var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-cyan);
            text-shadow: none;
            transform: translateX(3px);
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
            font-weight: 600;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-cyan);
            text-shadow: none;
        }
        .footer-compliance {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .compliance-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-gold);
            padding: 6px 12px;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            background: rgba(255, 215, 0, 0.05);
            letter-spacing: 0.04em;
        }
        .compliance-badge i {
            font-size: 0.68rem;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1199.98px) {
            .article-content-card {
                padding: 26px 28px;
            }
        }

        @media (max-width: 991.98px) {
            .custom-nav .navbar-nav {
                padding: 16px 0;
                gap: 4px;
            }
            .custom-nav .nav-link {
                padding: 10px 12px !important;
                font-size: 0.85rem;
            }
            .btn-login, .btn-signup {
                font-size: 0.8rem;
                padding: 8px 16px;
            }
            .section-block,
            .section-block-alt {
                padding: 48px 0;
            }
            .article-hero {
                padding: 36px 0 44px;
            }
            .article-content-card {
                padding: 22px 20px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
            .custom-nav {
                min-height: 64px;
                flex-wrap: wrap;
                gap: 8px;
            }
            .navbar-brand {
                font-size: 0.8rem;
                gap: 8px;
            }
            .navbar-brand .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .navbar-brand span {
                font-size: 0.75rem;
            }
            .navbar-brand .brand-sub {
                font-size: 0.65rem;
            }
            .btn-login {
                padding: 7px 12px;
                font-size: 0.75rem;
            }
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.75rem;
            }
            .custom-nav .navbar-nav {
                padding: 12px 0;
            }
            .article-hero h1 {
                font-size: 1.5rem;
                line-height: 1.35;
            }
            .article-hero .article-excerpt {
                font-size: 0.95rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 0.78rem;
                flex-wrap: wrap;
            }
            .article-content-card {
                padding: 16px 14px;
                border-radius: var(--radius-md);
            }
            .article-body {
                font-size: 0.92rem;
                line-height: 1.65;
            }
            .article-body h2 {
                font-size: 1.28rem;
                margin-top: 24px;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
            .article-body blockquote {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .pull-quote {
                padding: 20px 16px;
                margin: 20px 0;
            }
            .pull-quote .quote-text {
                font-size: 1rem;
                padding-left: 28px;
            }
            .pull-quote .quote-source {
                padding-left: 28px;
                font-size: 0.74rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 16px 14px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .tip-card {
                padding: 20px 16px;
            }
            .proof-card {
                padding: 18px 16px;
            }
            .cta-inner h2 {
                font-size: 1.45rem;
            }
            .cta-inner p {
                font-size: 0.95rem;
            }
            .btn-primary-glow,
            .btn-outline-glow {
                padding: 12px 20px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            .sticky-bottom-bar .bar-text {
                font-size: 0.8rem;
            }
            .sticky-bottom-bar .btn-bar-cta {
                padding: 8px 16px;
                font-size: 0.78rem;
            }
            .fab-cyber {
                left: 10px;
                bottom: 85px;
                padding: 10px 14px;
                gap: 6px;
                min-height: 44px;
                min-width: 44px;
            }
            .fab-cyber .fab-label {
                font-size: 0.7rem;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .faq-accordion .accordion-button {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-accordion .accordion-body {
                font-size: 0.85rem;
                padding: 12px 16px 18px;
            }
            .article-cover-image {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 519.98px) {
            .navbar-brand span {
                font-size: 0.7rem;
            }
            .btn-login {
                font-size: 0.7rem;
                padding: 6px 10px;
            }
            .btn-signup {
                font-size: 0.7rem;
                padding: 6px 10px;
            }
            .navbar-toggler {
                padding: 6px 8px;
            }
            .article-hero h1 {
                font-size: 1.35rem;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .sticky-bottom-bar .bar-inner {
                gap: 10px;
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .sticky-bottom-bar .bar-text {
                font-size: 0.76rem;
            }
            .fab-cyber {
                left: 8px;
                bottom: 100px;
                padding: 8px 10px;
                min-height: 40px;
                min-width: 40px;
            }
            .fab-cyber .fab-label {
                display: none;
            }
            .fab-cyber .fab-icon {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 359.98px) {
            .navbar-brand .brand-icon {
                display: none;
            }
            .btn-login {
                display: none;
            }
            .btn-signup {
                font-size: 0.65rem;
            }
        }

/* roulang page: category2 */
:root {
      --bg-deep: #08090F;
      --bg-navy: #0D111E;
      --bg-panel: #0A1226;
      --accent-blue: #0052FF;
      --accent-cyan: #00F0FF;
      --electric-glow: rgba(0, 240, 255, 0.5);
      --text-white: #FFFFFF;
      --text-silver: #CBD5E1;
      --text-muted: #7E8BA3;
      --glass-bg: rgba(13, 17, 30, 0.78);
      --glass-border: rgba(0, 240, 255, 0.22);
      --glass-shadow: 0 14px 34px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 22px;
      --radius-xl: 30px;
      --font-body: 'Inter', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
      --font-display: 'Be Vietnam Pro', 'Segoe UI', Roboto, sans-serif;
      --transition: 0.22s ease;
      --container-max: 1140px;
    }

    *, *::before, *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-body);
      background-color: var(--bg-deep);
      background-image:
        radial-gradient(circle at 18% 18%, rgba(0, 82, 255, 0.08), transparent 38%),
        radial-gradient(circle at 82% 10%, rgba(0, 240, 255, 0.06), transparent 30%),
        linear-gradient(rgba(0, 240, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.035) 1px, transparent 1px);
      background-size: auto, auto, 44px 44px, 44px 44px;
      color: var(--text-white);
      line-height: 1.6;
      min-height: 100vh;
      padding-bottom: 90px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    a {
      color: var(--accent-cyan);
      text-decoration: none;
      transition: color var(--transition), opacity var(--transition);
    }
    a:hover {
      color: #7DE8FF;
      text-decoration: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button, .btn {
      font-family: var(--font-body);
    }

    :focus-visible {
      outline: 2px solid var(--accent-cyan);
      outline-offset: 3px;
      border-radius: 4px;
    }

    .container {
      max-width: var(--container-max);
    }

    .section-gap {
      padding: 64px 0;
    }

    .section-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1.55rem, 2.6vw, 2.2rem);
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 14px;
    }

    .section-subtitle {
      color: var(--text-muted);
      font-size: 1.02rem;
      line-height: 1.65;
      max-width: 680px;
    }

    .text-glow-cyan {
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.45);
    }

    .eyebrow-tag {
      display: inline-block;
      background: rgba(0, 82, 255, 0.14);
      border: 1px solid rgba(0, 240, 255, 0.28);
      color: var(--accent-cyan);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      padding: 6px 14px;
      border-radius: 50px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }

    /* navbar */
    .site-header {
      background: rgba(8, 9, 15, 0.86);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.13);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
      z-index: 1030;
    }

    .navbar.custom-nav {
      background: transparent;
      padding: 0.75rem 0;
    }

    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-white);
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 0.93rem;
      line-height: 1.25;
    }
    .navbar-brand .brand-icon {
      font-size: 1.5rem;
      color: var(--accent-cyan);
      filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.55));
    }
    .navbar-brand span {
      display: block;
    }
    .navbar-brand:hover {
      color: #fff;
    }

    .custom-nav .nav-link {
      color: var(--text-silver);
      font-weight: 500;
      font-size: 0.95rem;
      padding: 0.55rem 0.8rem;
      border-radius: 8px;
      transition: all var(--transition);
      margin: 0 2px;
    }
    .custom-nav .nav-link:hover,
    .custom-nav .nav-link:focus {
      color: #fff;
      background: rgba(0, 240, 255, 0.09);
    }
    .custom-nav .nav-link.active {
      color: #fff;
      background: rgba(0, 240, 255, 0.13);
      position: relative;
    }
    .custom-nav .nav-link.active::after {
      content: '';
      position: absolute;
      left: 12px;
      right: 12px;
      bottom: 4px;
      height: 2px;
      background: var(--accent-cyan);
      border-radius: 2px;
      box-shadow: 0 0 8px var(--electric-glow);
    }

    .btn-login {
      color: var(--text-silver);
      border: none;
      background: transparent;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 0.5rem 0.8rem;
      transition: color var(--transition);
    }
    .btn-login:hover {
      color: #fff;
    }

    .btn-signup {
      background: linear-gradient(135deg, #0052FF, #00C6E0);
      color: #fff;
      border: none;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 0.55rem 1.25rem;
      border-radius: 10px;
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.5), 0 8px 18px rgba(0, 82, 255, 0.3);
      transition: all var(--transition);
      white-space: nowrap;
    }
    .btn-signup:hover {
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 0 22px rgba(0, 240, 255, 0.8), 0 10px 24px rgba(0, 82, 255, 0.4);
    }

    /* hero */
    .hero-section {
      padding-top: 44px;
      padding-bottom: 52px;
      background-image: linear-gradient(rgba(8, 9, 15, 0.9), rgba(8, 9, 15, 0.95)), url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    }
    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 70% 30%, rgba(0, 82, 255, 0.12), transparent 50%);
      pointer-events: none;
    }

    .hero-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1.9rem, 3.4vw, 2.7rem);
      line-height: 1.22;
      color: #fff;
      margin-bottom: 18px;
    }
    .hero-lead {
      color: var(--text-silver);
      font-size: 1.05rem;
      line-height: 1.7;
      max-width: 580px;
      margin-bottom: 24px;
    }

    .btn-glow-primary {
      background: linear-gradient(135deg, #0052FF, #00F0FF);
      color: #fff;
      border: none;
      font-weight: 700;
      font-size: 0.98rem;
      padding: 0.8rem 1.7rem;
      border-radius: 12px;
      box-shadow: 0 0 14px rgba(0, 240, 255, 0.55), 0 10px 22px rgba(0, 82, 255, 0.35);
      transition: all var(--transition);
    }
    .btn-glow-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.85), 0 14px 28px rgba(0, 82, 255, 0.5);
    }

    .btn-outline-cyan {
      background: rgba(0, 240, 255, 0.06);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 240, 255, 0.45);
      font-weight: 600;
      font-size: 0.98rem;
      padding: 0.78rem 1.6rem;
      border-radius: 12px;
      transition: all var(--transition);
    }
    .btn-outline-cyan:hover {
      color: #fff;
      background: rgba(0, 240, 255, 0.14);
      border-color: var(--accent-cyan);
      box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
    }

    .glass-card {
      background: var(--glass-bg);
      backdrop-filter: blur(17px);
      -webkit-backdrop-filter: blur(17px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--glass-shadow);
      padding: 24px;
    }

    .hero-panel {
      padding: 26px;
      border-radius: var(--radius-lg);
    }
    .hero-panel .panel-title {
      font-family: var(--font-display);
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-panel .panel-title i {
      color: var(--accent-cyan);
    }
    .alloc-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 9px 0;
      border-bottom: 1px solid rgba(0, 240, 255, 0.08);
      font-size: 0.92rem;
    }
    .alloc-row:last-of-type {
      border-bottom: none;
    }
    .alloc-label {
      color: var(--text-muted);
    }
    .alloc-value {
      font-weight: 700;
      color: #fff;
      font-size: 0.98rem;
    }
    .alloc-value.highlight {
      color: var(--accent-cyan);
      text-shadow: 0 0 6px rgba(0, 240, 255, 0.35);
    }

    .trust-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }
    .trust-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(0, 82, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.16);
      color: var(--text-silver);
      font-size: 0.8rem;
      font-weight: 500;
      padding: 6px 12px;
      border-radius: 50px;
    }
    .trust-badge i {
      color: var(--accent-cyan);
    }

    /* numbered principles */
    .principle-list {
      list-style: none;
      padding: 0;
      margin: 0;
      counter-reset: principle-counter;
    }
    .principle-list li {
      position: relative;
      padding-left: 72px;
      margin-bottom: 28px;
      counter-increment: principle-counter;
    }
    .principle-list li:last-child {
      margin-bottom: 0;
    }
    .principle-list li::before {
      content: counter(principle-counter, decimal-leading-zero);
      position: absolute;
      left: 0;
      top: 0;
      width: 52px;
      height: 52px;
      background: linear-gradient(135deg, rgba(0, 82, 255, 0.22), rgba(0, 240, 255, 0.08));
      border: 1px solid rgba(0, 240, 255, 0.3);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
    }
    .principle-title {
      font-weight: 700;
      font-size: 1.1rem;
      color: #fff;
      margin-bottom: 4px;
    }
    .principle-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    .principle-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(0, 240, 255, 0.2);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    }
    .principle-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 300px;
    }
    .principle-visual .overlay-caption {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      padding: 16px 20px;
      background: linear-gradient(transparent, rgba(8, 9, 15, 0.92));
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
    }

    /* scenario timeline */
    .scenario-wrap {
      background: rgba(13, 17, 30, 0.55);
      border: 1px solid rgba(0, 240, 255, 0.14);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      position: relative;
      overflow: hidden;
    }
    .scenario-wrap::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(145deg, rgba(0, 82, 255, 0.05), rgba(0, 240, 255, 0.02));
      pointer-events: none;
    }
    .scenario-item {
      display: flex;
      gap: 16px;
      padding: 14px 0;
      border-bottom: 1px dashed rgba(0, 240, 255, 0.16);
      position: relative;
    }
    .scenario-item:last-child {
      border-bottom: none;
    }
    .scenario-phase {
      flex: 0 0 70px;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 0.86rem;
      color: var(--accent-cyan);
      background: rgba(0, 240, 255, 0.08);
      border: 1px solid rgba(0, 240, 255, 0.22);
      border-radius: 8px;
      text-align: center;
      padding: 6px 4px;
      align-self: flex-start;
    }
    .scenario-content {
      flex: 1;
    }
    .scenario-content .budget-line {
      font-size: 0.86rem;
      color: var(--text-muted);
      margin-bottom: 3px;
    }
    .scenario-content .bet-line {
      font-weight: 600;
      color: #fff;
      font-size: 0.95rem;
      margin-bottom: 2px;
    }
    .scenario-content .goal-line {
      font-size: 0.86rem;
      color: var(--text-silver);
    }

    /* social proof */
    .quote-card {
      background: rgba(13, 17, 30, 0.6);
      border: 1px solid rgba(0, 240, 255, 0.14);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      height: 100%;
      transition: all var(--transition);
    }
    .quote-card:hover {
      border-color: rgba(0, 240, 255, 0.4);
      box-shadow: 0 0 18px rgba(0, 240, 255, 0.12);
    }
    .quote-card .quote-icon {
      color: var(--accent-cyan);
      font-size: 1.2rem;
      margin-bottom: 10px;
      opacity: 0.8;
    }
    .quote-card blockquote {
      color: var(--text-silver);
      font-size: 0.95rem;
      line-height: 1.65;
      font-style: italic;
      margin-bottom: 12px;
    }
    .quote-author {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0052FF, #00F0FF);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 0.95rem;
    }
    .quote-name {
      font-weight: 600;
      color: #fff;
      font-size: 0.9rem;
    }
    .quote-role {
      color: var(--text-muted);
      font-size: 0.78rem;
    }

    .stat-highlight {
      background: linear-gradient(135deg, rgba(0, 82, 255, 0.16), rgba(0, 240, 255, 0.06));
      border: 1px solid rgba(0, 240, 255, 0.18);
      border-radius: var(--radius-md);
      padding: 18px;
      text-align: center;
    }
    .stat-number {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.6rem;
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.35);
      display: block;
    }
    .stat-label {
      color: var(--text-muted);
      font-size: 0.82rem;
      margin-top: 4px;
    }

    /* FAQ */
    .faq-accordion .accordion-item {
      background: rgba(13, 17, 30, 0.65);
      border: 1px solid rgba(0, 240, 255, 0.15);
      border-radius: var(--radius-md) !important;
      margin-bottom: 12px;
      overflow: hidden;
      transition: all var(--transition);
    }
    .faq-accordion .accordion-item:hover {
      border-color: rgba(0, 240, 255, 0.35);
    }
    .faq-accordion .accordion-button {
      background: transparent;
      color: #fff;
      font-weight: 600;
      font-size: 0.98rem;
      padding: 18px 20px;
      box-shadow: none;
      border-radius: var(--radius-md) !important;
      transition: all var(--transition);
    }
    .faq-accordion .accordion-button:not(.collapsed) {
      color: var(--accent-cyan);
      background: rgba(0, 240, 255, 0.05);
    }
    .faq-accordion .accordion-button::after {
      filter: invert(0.9) sepia(1) saturate(5) hue-rotate(120deg);
    }
    .faq-accordion .accordion-body {
      color: var(--text-silver);
      font-size: 0.92rem;
      line-height: 1.65;
      padding: 0 20px 18px;
    }

    /* final CTA */
    .cta-final {
      background: linear-gradient(135deg, rgba(0, 82, 255, 0.18), rgba(0, 240, 255, 0.07));
      border: 1px solid rgba(0, 240, 255, 0.22);
      border-radius: var(--radius-xl);
      padding: 42px 28px;
      text-align: center;
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.08);
    }
    .cta-final .cta-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1.5rem, 2.6vw, 2rem);
      color: #fff;
      margin-bottom: 12px;
    }
    .cta-final .cta-desc {
      color: var(--text-silver);
      max-width: 560px;
      margin: 0 auto 22px;
      font-size: 0.98rem;
      line-height: 1.65;
    }

    /* fixed bottom conversion bar */
    .bottom-cta-bar {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 1025;
      background: rgba(8, 9, 15, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-top: 1px solid rgba(0, 240, 255, 0.25);
      box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.45);
      padding: 12px 0;
    }
    .bottom-cta-bar .bar-text {
      color: var(--text-silver);
      font-size: 0.88rem;
      line-height: 1.4;
    }
    .bottom-cta-bar .bar-text strong {
      color: #fff;
    }
    .btn-bar-cta {
      background: linear-gradient(135deg, #0052FF, #00F0FF);
      color: #fff;
      border: none;
      font-weight: 700;
      font-size: 0.88rem;
      padding: 0.6rem 1.3rem;
      border-radius: 10px;
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
      white-space: nowrap;
      transition: all var(--transition);
    }
    .btn-bar-cta:hover {
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.8);
    }

    /* FAB option 2: cyber & neon */
    .fab-neon {
      position: fixed;
      left: 1rem;
      bottom: 6rem;
      z-index: 50;
      display: flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border: 2px solid transparent;
      background-clip: padding-box;
      border-radius: 50px;
      padding: 12px 16px;
      cursor: pointer;
      transition: all var(--transition);
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
      animation: fabBreath 3s infinite ease-in-out;
      text-decoration: none;
      min-width: 48px;
      min-height: 48px;
    }
    .fab-neon::before {
      content: '';
      position: absolute;
      inset: -3px;
      z-index: -1;
      border-radius: 50px;
      background: linear-gradient(135deg, #00FF00, #0052FF, #00F0FF);
      opacity: 0.85;
    }
    .fab-neon:hover {
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.85), 0 0 54px rgba(0, 82, 255, 0.45);
      transform: scale(1.04);
      animation-play-state: paused;
    }
    .fab-neon:active {
      transform: scale(0.96);
    }
    .fab-neon .fab-icon {
      color: var(--accent-cyan);
      font-size: 1.3rem;
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.8);
    }
    .fab-neon .fab-label {
      color: #fff;
      font-weight: 700;
      font-size: 0.82rem;
      letter-spacing: 0.01em;
    }
    .fab-neon .fab-dot {
      position: absolute;
      top: -4px;
      right: -4px;
      width: 14px;
      height: 14px;
      background: #ff007f;
      border-radius: 50%;
      border: 2px solid #0D111E;
      animation: blinkDot 1.4s infinite;
    }

    @keyframes fabBreath {
      0%, 100% { opacity: 0.62; }
      50% { opacity: 1; }
    }
    @keyframes blinkDot {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.25; }
    }

    /* footer */
    .site-footer {
      background: rgba(8, 9, 15, 0.95);
      border-top: 1px solid rgba(0, 240, 255, 0.15);
      padding: 52px 0 24px;
      margin-top: 40px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 700;
      font-size: 1.05rem;
      margin-bottom: 14px;
    }
    .footer-brand i {
      color: var(--accent-cyan);
      font-size: 1.3rem;
    }
    .site-footer p {
      color: var(--text-muted);
      font-size: 0.88rem;
      line-height: 1.6;
      max-width: 380px;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
      transition: all var(--transition);
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
      padding-left: 4px;
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 8px;
      border-top: 1px solid rgba(0, 240, 255, 0.1);
      margin-top: 30px;
      padding-top: 18px;
      color: var(--text-muted);
      font-size: 0.8rem;
    }
    .footer-bottom a {
      color: var(--accent-cyan);
    }

    /* responsive */
    @media (max-width: 991.98px) {
      .site-header .collapse {
        background: rgba(8, 9, 15, 0.96);
        border-radius: 12px;
        padding: 12px;
        margin-top: 10px;
        border: 1px solid rgba(0, 240, 255, 0.12);
      }
      .hero-section {
        padding-top: 30px;
        padding-bottom: 40px;
      }
      .hero-panel {
        margin-top: 26px;
      }
      .principle-visual img {
        min-height: 240px;
      }
      .section-gap {
        padding: 48px 0;
      }
    }

    @media (max-width: 767.98px) {
      .btn-login {
        font-size: 0.82rem;
        padding: 0.4rem 0.5rem;
      }
      .btn-signup {
        font-size: 0.8rem;
        padding: 0.45rem 0.9rem;
        border-radius: 8px;
      }
      .navbar-brand {
        font-size: 0.78rem;
        gap: 6px;
      }
      .navbar-brand .brand-icon {
        font-size: 1.2rem;
      }
      .hero-title {
        font-size: 1.65rem;
      }
      .hero-lead {
        font-size: 0.95rem;
      }
      .glass-card {
        padding: 18px;
      }
      .scenario-wrap {
        padding: 18px 14px;
      }
      .scenario-item {
        gap: 10px;
      }
      .scenario-phase {
        flex: 0 0 58px;
        font-size: 0.75rem;
      }
      .bottom-cta-bar .bar-text {
        font-size: 0.78rem;
      }
      .btn-bar-cta {
        font-size: 0.78rem;
        padding: 0.5rem 0.9rem;
      }
      .fab-neon .fab-label {
        display: none;
      }
      .fab-neon {
        padding: 14px;
        left: 0.8rem;
        bottom: 5.4rem;
      }
      .principle-list li {
        padding-left: 60px;
        margin-bottom: 22px;
      }
      .principle-list li::before {
        width: 44px;
        height: 44px;
        font-size: 1.05rem;
        border-radius: 10px;
      }
      .cta-final {
        padding: 32px 18px;
        border-radius: 20px;
      }
    }

    @media (max-width: 519.98px) {
      .hero-title {
        font-size: 1.45rem;
      }
      .section-title {
        font-size: 1.4rem;
      }
      .btn-glow-primary, .btn-outline-cyan {
        font-size: 0.9rem;
        padding: 0.7rem 1.2rem;
      }
      .hero-panel .panel-title {
        font-size: 1rem;
      }
      .alloc-row {
        font-size: 0.84rem;
      }
      .alloc-value {
        font-size: 0.9rem;
      }
      .quote-card blockquote {
        font-size: 0.88rem;
      }
      .stat-number {
        font-size: 1.3rem;
      }
    }

/* roulang page: category3 */
:root {
      --bg-primary: #08090F;
      --bg-secondary: #0D111E;
      --bg-elevated: #0A0D18;
      --accent-blue: #0052FF;
      --accent-cyan: #00F0FF;
      --accent-blue-hover: #1A5FFF;
      --gradient-accent: linear-gradient(135deg, #0052FF 0%, #00F0FF 100%);
      --text-primary: #FFFFFF;
      --text-secondary: rgba(203, 213, 225, 0.88);
      --text-muted: rgba(148, 163, 184, 0.72);
      --border-subtle: rgba(0, 240, 255, 0.14);
      --border-medium: rgba(0, 240, 255, 0.28);
      --border-strong: rgba(0, 240, 255, 0.45);
      --card-glass: rgba(13, 17, 30, 0.66);
      --card-glass-hover: rgba(15, 20, 36, 0.85);
      --glow-blue: 0 0 14px rgba(0, 82, 255, 0.35);
      --glow-cyan: 0 0 18px rgba(0, 240, 255, 0.28);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.5);
      --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
      --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
      --transition-fast: 0.2s ease;
      --transition-base: 0.35s ease;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
      min-height: 100vh;
      position: relative;
    }

    img { max-width: 100%; height: auto; display: block; }
    a { text-decoration: none; color: var(--accent-cyan); transition: color var(--transition-fast); }
    a:hover { color: #7bf5ff; }
    ul, ol { list-style: none; margin: 0; padding: 0; }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button:focus-visible, a:focus-visible, input:focus-visible {
      outline: 2px solid var(--accent-cyan);
      outline-offset: 3px;
      border-radius: 4px;
    }
    ::selection { background: rgba(0, 240, 255, 0.25); color: #fff; }

    /* ===== Typography ===== */
    h1, h2, h3, h4, h5, h6 {
      color: var(--text-primary);
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.02em;
    }
    h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
    h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
    h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
    p { color: var(--text-secondary); }
    .text-gradient {
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: transparent;
    }
    .section-label {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-cyan);
      margin-bottom: 0.75rem;
    }
    .section-title { margin-bottom: 0.75rem; }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 720px;
      line-height: 1.7;
    }

    /* ===== Layout Containers ===== */
    .container-custom {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .section {
      padding: 4.5rem 0;
      position: relative;
    }
    .section-hero { padding-top: 7.5rem; padding-bottom: 4rem; }
    .section-alt { background-color: var(--bg-secondary); }

    /* ===== Background Layers ===== */
    .hero-bg-wrap {
      position: absolute;
      inset: 0;
      z-index: 0;
      overflow: hidden;
      pointer-events: none;
    }
    .hero-bg-wrap .bg-img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      filter: saturate(0.6) brightness(1.2);
    }
    .hero-bg-wrap .bg-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 30% 20%, rgba(0, 82, 255, 0.24) 0%, transparent 55%),
                  radial-gradient(ellipse at 75% 65%, rgba(0, 240, 255, 0.15) 0%, transparent 45%),
                  linear-gradient(180deg, rgba(8, 9, 15, 0.55) 0%, rgba(8, 9, 15, 0.95) 100%);
    }
    .bg-grid-pattern {
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
      background-size: 42px 42px;
      z-index: 1;
    }

    /* ===== Navigation ===== */
    .site-header {
      background: rgba(8, 9, 15, 0.82);
      backdrop-filter: blur(22px);
      -webkit-backdrop-filter: blur(22px);
      border-bottom: 1px solid var(--border-subtle);
      z-index: 1050;
    }
    .custom-nav { padding: 0.8rem 0; }
    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      font-weight: 700;
      font-size: 1.05rem;
      line-height: 1.3;
      color: #fff !important;
      text-decoration: none !important;
    }
    .brand-icon {
      width: 46px;
      height: 46px;
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: var(--gradient-accent);
      color: #fff;
      font-size: 1.2rem;
      box-shadow: var(--glow-blue);
    }
    .navbar-nav .nav-link {
      color: rgba(203, 213, 225, 0.75) !important;
      font-weight: 500;
      font-size: 0.92rem;
      padding: 0.6rem 0.95rem !important;
      border-radius: 8px;
      transition: all var(--transition-fast);
    }
    .navbar-nav .nav-link:hover {
      color: #fff !important;
      background: rgba(0, 240, 255, 0.08);
    }
    .navbar-nav .nav-link.active {
      color: #fff !important;
      background: rgba(0, 240, 255, 0.15);
      border-left: 3px solid var(--accent-cyan);
      font-weight: 600;
    }
    .btn-login {
      color: var(--text-secondary) !important;
      font-weight: 500;
      font-size: 0.9rem;
      padding: 0.5rem 1rem;
      border: 1px solid transparent;
      border-radius: 8px;
      transition: all var(--transition-fast);
      white-space: nowrap;
    }
    .btn-login:hover {
      color: #fff !important;
      background: rgba(255, 255, 255, 0.07);
    }
    .btn-signup {
      background: var(--gradient-accent);
      color: #fff !important;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 0.55rem 1.25rem;
      border-radius: 8px;
      border: none;
      box-shadow: var(--glow-blue);
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 82, 255, 0.55);
      color: #fff !important;
    }
    .navbar-toggler {
      border: 1px solid var(--border-medium);
      border-radius: 8px;
      padding: 0.35rem 0.65rem;
      background: rgba(255, 255, 255, 0.04);
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280,240,255,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* ===== Buttons ===== */
    .btn {
      border-radius: 8px;
      font-weight: 600;
      padding: 0.7rem 1.5rem;
      transition: all var(--transition-base);
      position: relative;
      overflow: hidden;
    }
    .btn-primary-cyber {
      background: var(--gradient-accent);
      color: #fff;
      border: none;
      box-shadow: var(--glow-blue);
    }
    .btn-primary-cyber:hover,
    .btn-primary-cyber:active,
    .btn-primary-cyber:focus {
      background: linear-gradient(135deg, #1a5fff 0%, #3af0ff 100%);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
    }
    .btn-outline-cyber {
      background: transparent;
      color: var(--accent-cyan);
      border: 1px solid var(--border-strong);
      background: rgba(0, 240, 255, 0.05);
    }
    .btn-outline-cyber:hover {
      background: rgba(0, 240, 255, 0.14);
      color: #fff;
      border-color: #7bf5ff;
      transform: translateY(-2px);
    }
    .btn-lg-cyber { padding: 0.85rem 1.8rem; font-size: 1.05rem; }

    /* ===== Hero ===== */
    .hero-content {
      position: relative;
      z-index: 5;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid var(--border-medium);
      border-radius: 100px;
      padding: 0.45rem 1rem;
      font-size: 0.82rem;
      font-weight: 500;
      color: var(--accent-cyan);
      margin-bottom: 1.5rem;
    }
    .hero-badge .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-cyan);
      box-shadow: 0 0 8px var(--accent-cyan);
      animation: pulse-dot 2s infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.65); }
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-secondary);
      max-width: 640px;
      line-height: 1.8;
      margin-top: 1rem;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 0.9rem;
      margin-top: 2rem;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem 2.5rem;
      margin-top: 2.25rem;
    }
    .hero-stat {
      display: flex;
      flex-direction: column;
    }
    .hero-stat .stat-number {
      font-size: 1.8rem;
      font-weight: 800;
      background: var(--gradient-accent);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: transparent;
      letter-spacing: -0.03em;
    }
    .hero-stat .stat-label {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    .hero-progress-wrap {
      background: rgba(13, 17, 30, 0.7);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      margin-top: 2rem;
      max-width: 580px;
    }
    .hero-progress-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 0.75rem;
      font-weight: 600;
      font-size: 0.92rem;
    }
    .hero-progress-head .score {
      color: var(--accent-cyan);
      font-size: 1.1rem;
    }
    .progress-custom {
      height: 10px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 100px;
      overflow: hidden;
    }
    .progress-custom .progress-bar-custom {
      height: 100%;
      background: var(--gradient-accent);
      border-radius: 100px;
      width: 96%;
      box-shadow: var(--glow-blue);
      transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
    }

    /* ===== Cards (Glassmorphism) ===== */
    .glass-card {
      background: var(--card-glass);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 1.75rem;
      transition: all var(--transition-base);
      position: relative;
      overflow: hidden;
      height: 100%;
    }
    .glass-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--gradient-accent);
      opacity: 0;
      transition: opacity var(--transition-base);
    }
    .glass-card:hover {
      border-color: var(--border-medium);
      background: var(--card-glass-hover);
      transform: translateY(-4px);
      box-shadow: 0 14px 32px rgba(0, 0, 0, 0.45), var(--glow-cyan);
    }
    .glass-card:hover::before { opacity: 1; }
    .glass-card .card-icon {
      width: 52px;
      height: 52px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(0, 240, 255, 0.1);
      color: var(--accent-cyan);
      font-size: 1.35rem;
      margin-bottom: 1.1rem;
      border: 1px solid var(--border-subtle);
    }
    .glass-card h3 { margin-bottom: 0.6rem; }
    .glass-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; margin-bottom: 0; }
    .glass-card.featured {
      border-color: var(--border-medium);
      background: rgba(13, 17, 30, 0.8);
      box-shadow: var(--glow-blue);
    }
    .glass-card.featured .card-icon {
      background: var(--gradient-accent);
      color: #fff;
      box-shadow: var(--glow-blue);
    }

    /* ===== Card with Image ===== */
    .img-card {
      background: var(--card-glass);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all var(--transition-base);
      height: 100%;
    }
    .img-card:hover {
      border-color: var(--border-medium);
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), var(--glow-cyan);
    }
    .img-card .card-img-wrap {
      height: 180px;
      overflow: hidden;
      position: relative;
    }
    .img-card .card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .img-card:hover .card-img-wrap img { transform: scale(1.06); }
    .img-card .card-img-wrap::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(8, 9, 15, 0.8) 100%);
    }
    .img-card .card-body-custom { padding: 1.25rem 1.5rem 1.5rem; }
    .img-card .card-body-custom h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
    .img-card .card-body-custom p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.65; margin-bottom: 0; }

    /* ===== Timeline / Steps ===== */
    .step-timeline {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
      position: relative;
    }
    .step-timeline::before {
      content: '';
      position: absolute;
      left: 25px;
      top: 12px;
      bottom: 12px;
      width: 2px;
      background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
      opacity: 0.3;
    }
    .step-item {
      display: flex;
      gap: 1.25rem;
      position: relative;
      z-index: 2;
    }
    .step-marker {
      width: 52px;
      height: 52px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: var(--card-glass);
      border: 1px solid var(--border-medium);
      color: var(--accent-cyan);
      font-weight: 700;
      font-size: 1.1rem;
      box-shadow: var(--glow-blue);
    }
    .step-content {
      background: var(--card-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 1.25rem 1.5rem;
      flex: 1;
      transition: all var(--transition-fast);
    }
    .step-content:hover {
      border-color: var(--border-medium);
      background: var(--card-glass-hover);
    }
    .step-content h4 { font-size: 1.05rem; margin-bottom: 0.4rem; }
    .step-content p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; line-height: 1.65; }

    /* ===== Social Proof ===== */
    .proof-card {
      background: var(--card-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      transition: all var(--transition-fast);
      height: 100%;
    }
    .proof-card:hover {
      border-color: var(--border-medium);
      box-shadow: var(--glow-cyan);
    }
    .proof-quote {
      font-style: italic;
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 1rem;
      position: relative;
      padding-left: 1rem;
      border-left: 3px solid var(--accent-cyan);
    }
    .proof-author {
      display: flex;
      align-items: center;
      gap: 0.7rem;
    }
    .proof-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--gradient-accent);
      color: #fff;
      font-weight: 700;
      font-size: 0.95rem;
      flex-shrink: 0;
    }
    .proof-name { font-weight: 600; font-size: 0.92rem; color: whote; color: #fff; }
    .proof-role { font-size: 0.78rem; color: var(--text-muted); }
    .rating-stars {
      color: #FFD700;
      letter-spacing: 2px;
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
    }

    /* ===== FAQ ===== */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }
    .accordion-custom .accordion-item {
      background: var(--card-glass);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md) !important;
      margin-bottom: 1rem;
      overflow: hidden;
      transition: all var(--transition-fast);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .accordion-custom .accordion-item:hover {
      border-color: var(--border-medium);
    }
    .accordion-custom .accordion-button {
      background: transparent;
      color: #fff;
      font-weight: 600;
      font-size: 1rem;
      padding: 1.15rem 1.4rem;
      box-shadow: none;
      border: none;
      transition: all var(--transition-fast);
      word-break: normal;
      text-align: left;
    }
    .accordion-custom .accordion-button:not(.collapsed) {
      background: rgba(0, 240, 255, 0.08);
      color: var(--accent-cyan);
      box-shadow: none;
    }
    .accordion-custom .accordion-button:focus { box-shadow: none; border-color: var(--border-strong); }
    .accordion-custom .accordion-button::after {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300F0FF'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }
    .accordion-custom .accordion-body {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      padding: 0.8rem 1.4rem 1.25rem;
    }

    /* ===== CTA Section ===== */
    .cta-panel {
      background: var(--card-glass);
      backdrop-filter: blur(22px);
      -webkit-backdrop-filter: blur(22px);
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-xl);
      padding: 3rem 2rem;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--glow-blue);
    }
    .cta-panel::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -30%;
      width: 80%;
      height: 200%;
      background: radial-gradient(ellipse, rgba(0, 82, 255, 0.2) 0%, transparent 60%);
      animation: rotate-glow 12s linear infinite;
      pointer-events: none;
    }
    .cta-panel::after {
      content: '';
      position: absolute;
      bottom: -40%;
      right: -20%;
      width: 70%;
      height: 180%;
      background: radial-gradient(ellipse, rgba(0, 240, 255, 0.12) 0%, transparent 55%);
      animation: rotate-glow-alt 14s linear infinite;
      pointer-events: none;
    }
    @keyframes rotate-glow {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
    @keyframes rotate-glow-alt {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(-360deg); }
    }
    .cta-panel .cta-inner { position: relative; z-index: 2; }
    .cta-panel h2 { margin-bottom: 0.75rem; }
    .cta-panel p { max-width: 620px; margin: 0 auto 1.75rem; color: var(--text-secondary); font-size: 1.02rem; }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-subtle);
      padding: 3.5rem 0 0;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      font-weight: 700;
      font-size: 1.15rem;
      color: #fff;
      margin-bottom: 1rem;
    }
    .footer-brand i {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: var(--gradient-accent);
      color: #fff;
      font-size: 1.1rem;
    }
    .site-footer p {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.7;
      max-width: 400px;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
      letter-spacing: 0.02em;
    }
    .footer-links li { margin-bottom: 0.6rem; }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
      transition: all var(--transition-fast);
    }
    .footer-links a:hover { color: var(--accent-cyan); padding-left: 4px; }
    .footer-bottom {
      margin-top: 2.5rem;
      padding: 1.25rem 0;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 0.75rem;
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .footer-bottom a {
      color: var(--accent-cyan);
      text-decoration: none;
    }
    .footer-bottom a:hover { color: #7bf5ff; }

    /* ===== FAB (Cyber Neon Style) ===== */
    .fab-cyber {
      position: fixed;
      left: 1rem;
      bottom: 6rem;
      z-index: 1060;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 56px;
      height: 56px;
      min-width: 48px;
      min-height: 48px;
      border-radius: 50px;
      background: rgba(10, 13, 24, 0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 2px solid transparent;
      background-clip: padding-box;
      position: relative;
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.5), 0 4px 16px rgba(0, 0, 0, 0.4);
      opacity: 0.6;
      cursor: pointer;
      transition: all var(--transition-base);
      animation: fab-float 3s ease-in-out infinite;
      text-decoration: none;
    }
    .fab-cyber::before {
      content: '';
      position: absolute;
      inset: -2px;
      border-radius: 50px;
      background: linear-gradient(135deg, #0052FF, #00F0FF, #0052FF);
      background-size: 200% 200%;
      animation: fab-border-flow 4s linear infinite;
      z-index: -1;
      opacity: 0.7;
    }
    .fab-cyber:hover {
      opacity: 1;
      transform: scale(1.1);
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.7), 0 8px 20px rgba(0, 0, 0, 0.5);
    }
    .fab-cyber:active {
      transform: scale(0.95);
      border-color: #FF007F;
    }
    .fab-cyber .fab-icon {
      color: var(--accent-cyan);
      font-size: 1.4rem;
      z-index: 2;
      text-shadow: 0 0 10px rgba(0, 240, 255, 0.9);
      animation: fab-flicker 2.5s infinite;
    }
    .fab-cyber .fab-notify {
      position: absolute;
      top: -3px;
      right: -3px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #FF007F;
      border: 2px solid #0A0D18;
      z-index: 3;
      animation: fab-blink 1.8s infinite;
    }
    @keyframes fab-float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }
    @keyframes fab-border-flow {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    @keyframes fab-flicker {
      0%, 100% { opacity: 1; }
      48% { opacity: 0.65; }
      52% { opacity: 1; }
      70% { opacity: 0.85; }
    }
    @keyframes fab-blink {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.3; transform: scale(0.75); }
    }

    /* ===== Fixed Bottom Conversion Bar ===== */
    .bottom-conversion-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 1040;
      background: rgba(8, 9, 15, 0.9);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-top: 1px solid var(--border-strong);
      padding: 0.65rem 0;
      display: flex;
      align-items: center;
      box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.45);
    }
    .bottom-conversion-bar .conv-text {
      color: var(--text-secondary);
      font-size: 0.9rem;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .bottom-conversion-bar .conv-text i {
      color: var(--accent-cyan);
      font-size: 1.05rem;
    }
    .bottom-conversion-bar .btn-conv {
      background: var(--gradient-accent);
      color: #fff;
      font-weight: 600;
      font-size: 0.88rem;
      padding: 0.55rem 1.3rem;
      border-radius: 8px;
      border: none;
      box-shadow: var(--glow-blue);
      white-space: nowrap;
      transition: all var(--transition-base);
      text-decoration: none;
      display: inline-block;
    }
    .bottom-conversion-bar .btn-conv:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 82, 255, 0.55);
      color: #fff;
    }
    .bottom-conversion-bar .btn-close-conv {
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 1rem;
      cursor: pointer;
      padding: 0.3rem 0.5rem;
      transition: color var(--transition-fast);
      flex-shrink: 0;
    }
    .bottom-conversion-bar .btn-close-conv:hover { color: #fff; }

    /* ===== Divider ===== */
    .divider-line {
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
      margin: 0 auto;
      max-width: 900px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1199.98px) {
      .hero-stats { gap: 1.2rem 2rem; }
    }
    @media (max-width: 1023.98px) {
      .section { padding: 3.5rem 0; }
      .section-hero { padding-top: 6.5rem; }
      .navbar-nav { text-align: left; padding: 0.75rem 0; }
      .navbar-nav .nav-link.active { border-left: none; background: rgba(0, 240, 255, 0.12); }
    }
    @media (max-width: 767.98px) {
      .section { padding: 2.75rem 0; }
      .section-hero { padding-top: 5.75rem; padding-bottom: 2.5rem; }
      .hero-stats { flex-direction: column; gap: 0.75rem; }
      .hero-progress-wrap { padding: 1rem 1.25rem; }
      .cta-panel { padding: 2rem 1.25rem; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .navbar-brand span { font-size: 0.9rem; }
      .bottom-conversion-bar .conv-text { font-size: 0.78rem; }
      .bottom-conversion-bar .btn-conv { font-size: 0.78rem; padding: 0.45rem 0.9rem; }
      .fab-cyber { width: 50px; height: 50px; bottom: 5.5rem; left: 0.75rem; }
    }
    @media (max-width: 520px) {
      .navbar-brand { gap: 0.5rem; }
      .brand-icon { width: 40px; height: 40px; font-size: 1rem; border-radius: 10px; }
      .btn-login, .btn-signup { font-size: 0.78rem; padding: 0.4rem 0.75rem; }
      .hero-cta-group { flex-direction: column; align-items: stretch; }
      .hero-cta-group .btn { width: 100%; text-align: center; }
      .hero-desc { font-size: 0.98rem; }
      .glass-card { padding: 1.25rem; }
      .step-marker { width: 44px; height: 44px; font-size: 1rem; border-radius: 10px; }
      .step-content { padding: 1rem 1.1rem; }
      .bottom-conversion-bar { padding: 0.5rem 0; }
      .bottom-conversion-bar .conv-text { font-size: 0.72rem; gap: 0.35rem; }
    }