/* roulang page: index */
:root{
    --bg-void:#07070D;
    --bg-abyss:#0E0E1E;
    --bg-card:#12122A;
    --bg-soft:#161638;
    --line:rgba(148,163,184,.16);
    --line-strong:rgba(163,230,53,.35);
    --volt:#A3E635;
    --plasma:#06B6D4;
    --laser:#F43F5E;
    --white:#FFFFFF;
    --chrome:#94A3B8;
    --ink:#0B0B14;
    --radius-xl:26px;
    --radius-lg:18px;
    --radius-md:12px;
    --shadow-volt:0 0 24px rgba(163,230,53,.35);
    --shadow-plasma:0 0 24px rgba(6,182,212,.35);
    --shadow-card:0 18px 44px rgba(2,6,23,.65);
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:
      radial-gradient(1100px 560px at 88% -8%, rgba(6,182,212,.20), transparent 60%),
      radial-gradient(900px 520px at 6% 4%, rgba(163,230,53,.16), transparent 62%),
      var(--bg-void);
    color:var(--white);
    font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
    line-height:1.62;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--volt);
    background:rgba(163,230,53,.10);
    border:1px solid rgba(163,230,53,.32);
  }
  .eyebrow.plasma{color:var(--plasma);background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.32)}
  .eyebrow.laser{color:var(--laser);background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.32)}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(120deg,var(--volt),#5EEAD4);
    color:var(--ink);
    box-shadow:var(--shadow-volt);
  }
  .btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(163,230,53,.55)}
  .btn-primary:active{transform:translateY(0) scale(.98)}
  .btn-ghost{
    background:rgba(255,255,255,.03);
    color:var(--white);
    border-color:rgba(148,163,184,.35);
  }
  .btn-ghost:hover{border-color:var(--plasma);color:#CFFAFE;box-shadow:var(--shadow-plasma)}
  .btn-plasma{
    background:linear-gradient(120deg,var(--plasma),#3B82F6);
    color:#04121B;
    box-shadow:var(--shadow-plasma);
  }
  .btn-plasma:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(6,182,212,.55)}
  .btn:focus-visible,a:focus-visible,summary:focus-visible{
    outline:2px solid var(--volt);outline-offset:3px;border-radius:10px;
  }
  .card{
    background:linear-gradient(180deg, rgba(18,18,42,.96), rgba(11,11,24,.96));
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
  }
  .card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(163,230,53,.16)}
  .glass{
    background:rgba(14,14,30,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
  }
  .neon-text{
    background:linear-gradient(96deg,var(--volt),var(--plasma) 60%,#38BDF8);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .section{padding:74px 0;position:relative}
  .section.alt{background:linear-gradient(180deg, rgba(14,14,30,.35), rgba(7,7,13,.85))}
  .section-title{
    font-size:clamp(1.5rem,3vw,2.15rem);
    font-weight:800;line-height:1.25;margin:14px 0 12px;
  }
  .section-desc{color:var(--chrome);max-width:760px;font-size:.98rem;margin:0}
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
  .divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
  .chip{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:.72rem;font-weight:600;letter-spacing:.04em;
    background:rgba(6,182,212,.10);border:1px solid rgba(6,182,212,.30);color:#A5F3FC;
  }
  .hot-tag{
    position:absolute;top:12px;right:12px;z-index:3;
    padding:4px 11px;border-radius:8px;font-size:.66rem;font-weight:800;letter-spacing:.1em;
    background:linear-gradient(120deg,var(--laser),#FB7185);color:#fff;
    box-shadow:0 0 16px rgba(244,63,94,.5);
  }
  .stat-num{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:900;line-height:1}
  .list-tick{display:flex;gap:12px;align-items:flex-start;color:#CBD5E1;font-size:.94rem}
  .list-tick i{color:var(--volt);margin-top:5px}
  .nav-link{
    position:relative;padding:8px 2px;font-size:.92rem;font-weight:600;color:#CBD5E1;transition:color .2s ease;
  }
  .nav-link:hover{color:var(--white)}
  .nav-link.active{color:var(--volt)}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--volt),var(--plasma));
  }
  .progress-ring{transform:rotate(-90deg)}
  .progress-ring circle{transition:stroke-dashoffset 1.2s ease}
  .fab{
    position:fixed;left:16px;bottom:96px;z-index:50;
    width:58px;height:58px;border-radius:20px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(7,7,13,.82);
    backdrop-filter:blur(12px);
    border:2px solid transparent;
    background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(140deg,var(--volt),var(--plasma));
    background-origin:border-box;background-clip:padding-box,border-box;
    color:var(--volt);font-size:1.25rem;
    box-shadow:0 0 22px rgba(6,182,212,.42);
    opacity:.82;
    transition:opacity .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .fab:hover{opacity:1;transform:scale(1.09);box-shadow:0 0 32px rgba(163,230,53,.6)}
  .fab:active{transform:scale(.94)}
  .fab-dot{
    position:absolute;top:-5px;right:-5px;width:14px;height:14px;border-radius:50%;
    background:var(--laser);border:2px solid #0B0B14;animation:pulse 1.6s infinite;
  }
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
  @keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
  .floaty{animation:floaty 4.4s ease-in-out infinite}
  details.faq{
    border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(14,14,30,.6);
    padding:18px 20px;transition:border-color .2s ease,background .2s ease;margin-bottom:12px;
  }
  details.faq:hover{border-color:var(--line-strong);background:rgba(22,22,56,.7)}
  details.faq summary{
    cursor:pointer;list-style:none;font-weight:700;font-size:1rem;
    display:flex;justify-content:space-between;gap:16px;align-items:center;
  }
  details.faq summary::-webkit-details-marker{display:none}
  details.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--volt);font-size:.8rem}
  details.faq[open] summary::after{content:"\f068"}
  details.faq p{color:var(--chrome);margin:12px 0 0;font-size:.94rem}
  .tier{position:relative;padding:28px 24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(180deg,rgba(18,18,42,.95),rgba(10,10,22,.95))}
  .tier.recommended{border-color:var(--line-strong);box-shadow:0 0 30px rgba(163,230,53,.18)}
  .tier.recommended::before{
    content:"KHUYÊN DÙNG";position:absolute;top:-12px;left:24px;
    background:linear-gradient(120deg,var(--volt),#5EEAD4);color:var(--ink);
    font-size:.64rem;font-weight:800;letter-spacing:.12em;padding:5px 12px;border-radius:999px;
  }
  .num-index{font-size:.72rem;font-weight:800;letter-spacing:.18em;color:var(--volt)}
  .footer-link{color:#94A3B8;font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
  .footer-link:hover{color:var(--volt);padding-left:4px}
  .topbar{
    position:sticky;top:0;z-index:60;
    background:rgba(7,7,13,.86);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .hero-shell{
    position:relative;overflow:hidden;border-radius:28px;
    border:1px solid var(--line);
    background-image:linear-gradient(115deg, rgba(7,7,13,.94) 12%, rgba(7,7,13,.72) 52%, rgba(6,182,212,.28)),url('/assets/images/0a8739b0eb2b3872.jpg');
    background-size:cover;background-position:center;
  }
  .track{display:flex;gap:18px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory}
  .track::-webkit-scrollbar{height:6px}
  .track::-webkit-scrollbar-thumb{background:rgba(163,230,53,.4);border-radius:999px}
  .track > *{scroll-snap-align:start;flex:0 0 auto}
  @media (max-width:1024px){
    .grid-4{grid-template-columns:repeat(2,1fr)}
    .grid-3{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:768px){
    .section{padding:56px 0}
    .grid-3,.grid-2{grid-template-columns:1fr}
    .fab{bottom:86px;left:12px;width:54px;height:54px}
  }
  @media (max-width:520px){
    .grid-4{grid-template-columns:1fr}
    .container{padding:0 16px}
    .btn{padding:13px 20px;font-size:.9rem}
  }

/* roulang page: category1 */
:root{
  --bg-void:#07070D;
  --bg-abyss:#0E0E1E;
  --bg-card:#12122A;
  --bg-soft:#161638;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --plasma:#06B6D4;
  --laser:#F43F5E;
  --white:#FFFFFF;
  --chrome:#94A3B8;
  --ink:#0B0B14;
  --radius-xl:26px;
  --radius-lg:18px;
  --radius-md:12px;
  --shadow-volt:0 0 24px rgba(163,230,53,.35);
  --shadow-plasma:0 0 24px rgba(6,182,212,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.65);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(6,182,212,.20), transparent 60%),
    radial-gradient(900px 520px at 6% 4%, rgba(163,230,53,.16), transparent 62%),
    var(--bg-void);
  color:var(--white);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--volt);
  background:rgba(163,230,53,.10);
  border:1px solid rgba(163,230,53,.32);
}
.eyebrow.plasma{color:var(--plasma);background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.32)}
.eyebrow.laser{color:var(--laser);background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.32)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--volt),#5EEAD4);color:var(--ink);box-shadow:var(--shadow-volt)}
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(163,230,53,.55)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(255,255,255,.03);color:var(--white);border-color:rgba(148,163,184,.35)}
.btn-ghost:hover{border-color:var(--plasma);color:#CFFAFE;box-shadow:var(--shadow-plasma)}
.btn-plasma{background:linear-gradient(120deg,var(--plasma),#3B82F6);color:#04121B;box-shadow:var(--shadow-plasma)}
.btn-plasma:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(6,182,212,.55)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--volt);outline-offset:3px;border-radius:10px}
.card{background:linear-gradient(180deg,rgba(18,18,42,.96),rgba(11,11,24,.96));border:1px solid var(--line);border-radius:var(--radius-lg);transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(163,230,53,.16)}
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(14,14,30,.35),rgba(7,7,13,.85))}
.section-title{font-size:clamp(1.5rem,3vw,2.15rem);font-weight:800;line-height:1.25;margin:14px 0 12px}
.section-desc{color:var(--chrome);max-width:760px;font-size:.98rem;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:.72rem;font-weight:600;letter-spacing:.04em;background:rgba(6,182,212,.10);border:1px solid rgba(6,182,212,.30);color:#A5F3FC}
.hot-tag{position:absolute;top:12px;right:12px;z-index:3;padding:4px 11px;border-radius:8px;font-size:.66rem;font-weight:800;letter-spacing:.1em;background:linear-gradient(120deg,var(--laser),#FB7185);color:#fff;box-shadow:0 0 16px rgba(244,63,94,.5)}
.list-tick{display:flex;gap:12px;align-items:flex-start;color:#CBD5E1;font-size:.94rem}
.list-tick i{color:var(--volt);margin-top:5px}
.nav-link{position:relative;padding:8px 2px;font-size:.92rem;font-weight:600;color:#CBD5E1;transition:color .2s ease}
.nav-link:hover{color:var(--white)}
.nav-link.active{color:var(--volt)}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--volt),var(--plasma))}
details.faq{border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(14,14,30,.6);padding:18px 20px;transition:border-color .2s ease,background .2s ease;margin-bottom:12px}
details.faq:hover{border-color:var(--line-strong);background:rgba(22,22,56,.7)}
details.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:1rem;display:flex;justify-content:space-between;gap:16px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--volt);font-size:.8rem}
details.faq[open] summary::after{content:"\f068"}
details.faq p{color:var(--chrome);margin:12px 0 0;font-size:.94rem}
.footer-link{color:#94A3B8;font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
.footer-link:hover{color:var(--volt);padding-left:4px}
.topbar{position:sticky;top:0;z-index:60;background:rgba(7,7,13,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.hero-shell{position:relative;overflow:hidden;border-radius:28px;border:1px solid var(--line);background-image:linear-gradient(115deg,rgba(7,7,13,.96) 8%,rgba(7,7,13,.74) 52%,rgba(6,182,212,.28)),url('/assets/images/0a8739b0eb2b3872.jpg');background-size:cover;background-position:center}
.hero-shell::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 38%,rgba(163,230,53,.07) 75%,transparent);pointer-events:none}
.hero-stack{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.72fr);gap:22px;padding:34px}
.hero-main{padding:18px 8px 18px 0}
.hero-main h1{font-size:clamp(2rem,5vw,4.1rem);line-height:1.08;font-weight:900;letter-spacing:-.02em;margin:18px 0}
.hero-main h1 span{color:var(--volt)}
.hero-side{display:grid;gap:16px;align-content:center}
.mini-panel{position:relative;overflow:hidden;border-radius:20px;padding:20px;background:rgba(11,11,24,.76);border:1px solid rgba(148,163,184,.2);backdrop-filter:blur(12px)}
.mini-panel::before{content:"";position:absolute;width:90px;height:90px;border-radius:50%;right:-40px;top:-45px;background:rgba(6,182,212,.2);filter:blur(4px)}
.mini-panel strong{display:block;font-size:1.15rem}
.mini-panel p{margin:6px 0 0;color:var(--chrome);font-size:.86rem}
.icon-box{width:48px;height:48px;border-radius:15px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(163,230,53,.2),rgba(6,182,212,.18));border:1px solid rgba(163,230,53,.3);color:var(--volt);font-size:1.1rem}
.feature-card{padding:26px;position:relative;overflow:hidden}
.feature-card h3{font-size:1.08rem;font-weight:800;margin:16px 0 8px}
.feature-card p{color:var(--chrome);font-size:.9rem;margin:0}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:22px;background:linear-gradient(90deg,rgba(18,18,42,.88),rgba(11,11,24,.9));overflow:hidden}
.stat-item{padding:24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-item strong{font-size:1.5rem;display:block}
.stat-item span{color:var(--chrome);font-size:.8rem}
.scenario{padding:0 0 0 20px;border-left:2px solid rgba(163,230,53,.4)}
.scenario h3{margin:0 0 8px;font-size:1.05rem}
.scenario p{margin:0;color:var(--chrome);font-size:.9rem}
.media-frame{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);position:relative}
.media-frame img{width:100%;height:100%;min-height:360px;object-fit:cover}
.media-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 44%,rgba(7,7,13,.74))}
.media-note{position:absolute;left:22px;right:22px;bottom:20px;z-index:2}
.metric-list{display:grid;gap:14px;margin-top:26px}
.metric-row{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:16px 18px;border-radius:14px;background:rgba(14,14,30,.7);border:1px solid var(--line)}
.metric-row span{color:var(--chrome);font-size:.88rem}
.metric-row strong{color:var(--volt)}
.step-line{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step-line::before{content:"";position:absolute;left:9%;right:9%;top:24px;height:1px;background:linear-gradient(90deg,var(--volt),var(--plasma),var(--laser))}
.step{padding:0 18px;text-align:left;position:relative}
.step-num{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px solid var(--line-strong);font-weight:900;color:var(--volt);position:relative;z-index:2}
.step h3{font-size:1rem;margin:18px 0 8px}
.step p{font-size:.88rem;color:var(--chrome);margin:0}
.payment-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.payment-item{padding:18px;border-radius:16px;border:1px solid var(--line);background:rgba(18,18,42,.68);display:flex;align-items:center;gap:12px}
.payment-item i{font-size:1.25rem;color:var(--plasma)}
.payment-item strong{font-size:.9rem}
.freebet-panel{border-radius:26px;border:1px solid rgba(163,230,53,.34);background:linear-gradient(120deg,rgba(163,230,53,.13),rgba(6,182,212,.12),rgba(244,63,94,.08));padding:34px;display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.freebet-panel h2{margin:12px 0;font-size:clamp(1.5rem,3vw,2.3rem);line-height:1.2}
.freebet-panel p{color:#CBD5E1;margin:0}
.trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.trust-item{padding:20px;border-radius:16px;border:1px solid var(--line);background:rgba(14,14,30,.58)}
.trust-item i{color:var(--volt);margin-bottom:12px}
.trust-item h3{margin:0 0 8px;font-size:1rem}
.trust-item p{margin:0;color:var(--chrome);font-size:.88rem}
.cta-band{position:relative;overflow:hidden;border-radius:28px;border:1px solid rgba(6,182,212,.35);background:linear-gradient(120deg,rgba(6,182,212,.18),rgba(18,18,42,.96),rgba(163,230,53,.12));padding:42px}
.cta-band::before{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-80px;top:-130px;background:rgba(163,230,53,.16);filter:blur(24px)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.35rem);line-height:1.2;margin:12px 0}
.cta-band p{color:#CBD5E1;max-width:700px;margin:0 0 24px}
.fab-support{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:999px;display:flex;align-items:center;justify-content:center;background:rgba(7,7,13,.82);border:1px solid transparent;background-clip:padding-box;box-shadow:0 0 20px rgba(6,182,212,.45);transition:transform .22s ease,opacity .22s ease,box-shadow .22s ease}
.fab-support::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,var(--volt),var(--plasma));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.fab-support i{font-size:1.25rem;color:#CFFAFE;transition:transform .35s ease}
.fab-support:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 28px rgba(6,182,212,.65)}
.fab-support:hover i{transform:rotate(360deg)}
.fab-support:active{transform:scale(.95) translateY(3px)}
.fab-dot{position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;background:var(--laser);box-shadow:0 0 12px var(--laser);border:2px solid #fff}
@media (max-width:1024px){
  .hero-stack{grid-template-columns:1fr}
  .hero-main{padding-right:0}
  .hero-side{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .payment-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .step-line{grid-template-columns:1fr;gap:26px}
  .step-line::before{left:24px;right:auto;top:24px;bottom:24px;width:1px;height:auto}
  .step{padding-left:0}
  .freebet-panel{grid-template-columns:1fr;padding:26px}
  .trust-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 24px}
}
@media (max-width:520px){
  .container{padding:0 14px}
  .hero-shell{border-radius:20px}
  .hero-stack{padding:20px;gap:14px}
  .hero-main h1{font-size:2rem}
  .hero-side{grid-template-columns:1fr}
  .grid-4,.payment-grid,.stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0!important;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .media-frame img{min-height:290px}
  .hero-actions{display:grid;width:100%}
  .hero-actions .btn{width:100%}
  .fab-support{left:12px;bottom:88px;width:52px;height:52px}
}

/* roulang page: article */
:root{
    --bg-void:#07070D;
    --bg-abyss:#0E0E1E;
    --bg-card:#12122A;
    --bg-soft:#161638;
    --line:rgba(148,163,184,.16);
    --line-strong:rgba(163,230,53,.35);
    --volt:#A3E635;
    --plasma:#06B6D4;
    --laser:#F43F5E;
    --white:#FFFFFF;
    --chrome:#94A3B8;
    --ink:#0B0B14;
    --radius-xl:26px;
    --radius-lg:18px;
    --radius-md:12px;
    --shadow-volt:0 0 24px rgba(163,230,53,.35);
    --shadow-plasma:0 0 24px rgba(6,182,212,.35);
    --shadow-card:0 18px 44px rgba(2,6,23,.65);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
    margin:0;
    min-width:320px;
    background:
      radial-gradient(1100px 560px at 88% -8%, rgba(6,182,212,.20), transparent 60%),
      radial-gradient(900px 520px at 6% 4%, rgba(163,230,53,.16), transparent 62%),
      var(--bg-void);
    color:var(--white);
    font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
    line-height:1.62;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--volt);
    background:rgba(163,230,53,.10);
    border:1px solid rgba(163,230,53,.32);
}
.eyebrow.plasma{color:var(--plasma);background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.32)}
.eyebrow.laser{color:var(--laser);background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.32)}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
    white-space:nowrap;
}
.btn-primary{
    background:linear-gradient(120deg,var(--volt),#5EEAD4);
    color:var(--ink);
    box-shadow:var(--shadow-volt);
}
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(163,230,53,.55)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
    background:rgba(255,255,255,.03);
    color:var(--white);
    border-color:rgba(148,163,184,.35);
}
.btn-ghost:hover{border-color:var(--plasma);color:#CFFAFE;box-shadow:var(--shadow-plasma)}
.btn-plasma{
    background:linear-gradient(120deg,var(--plasma),#3B82F6);
    color:#04121B;
    box-shadow:var(--shadow-plasma);
}
.btn-plasma:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(6,182,212,.55)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible,input:focus-visible{
    outline:2px solid var(--volt);outline-offset:3px;border-radius:10px;
}
.card{
    background:linear-gradient(180deg,rgba(18,18,42,.96),rgba(11,11,24,.96));
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(163,230,53,.16)}
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(14,14,30,.35),rgba(7,7,13,.85))}
.section-title{
    font-size:clamp(1.5rem,3vw,2.15rem);
    font-weight:800;line-height:1.25;margin:14px 0 12px;
}
.section-desc{color:var(--chrome);max-width:760px;font-size:.98rem;margin:0}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.chip{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:.72rem;font-weight:600;letter-spacing:.04em;
    background:rgba(6,182,212,.10);border:1px solid rgba(6,182,212,.30);color:#A5F3FC;
}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
.nav-link{
    position:relative;padding:8px 2px;font-size:.92rem;font-weight:600;color:#CBD5E1;transition:color .2s ease;
}
.nav-link:hover{color:var(--white)}
.nav-link.active{color:var(--volt)}
.nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--volt),var(--plasma));
}
.topbar{
    position:sticky;top:0;z-index:60;
    background:rgba(7,7,13,.86);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
}
.footer-link{color:#94A3B8;font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
.footer-link:hover{color:var(--volt);padding-left:4px}
.article-masthead{
    position:relative;
    padding:62px 0 0;
    overflow:hidden;
}
.article-masthead::before{
    content:"";
    position:absolute;inset:0 0 auto;
    height:620px;
    background:
      linear-gradient(115deg,rgba(7,7,13,.97) 5%,rgba(7,7,13,.78) 52%,rgba(6,182,212,.20)),
      url('/assets/images/3eb5b74f2f74d7f6.jpg') center/cover no-repeat;
    opacity:.9;
    pointer-events:none;
}
.article-masthead .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:#94A3B8;font-size:.82rem;margin-bottom:22px}
.breadcrumb a{color:#CBD5E1}
.breadcrumb a:hover{color:var(--volt)}
.article-heading{
    font-size:clamp(2rem,5vw,4.1rem);
    line-height:1.12;
    font-weight:900;
    letter-spacing:-.02em;
    margin:16px 0 20px;
    max-width:940px;
    text-wrap:balance;
}
.article-summary{
    max-width:850px;
    color:#D7E3EE;
    font-size:clamp(1rem,1.7vw,1.15rem);
    margin:0 0 26px;
}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.meta-pill{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 13px;border-radius:999px;
    background:rgba(7,7,13,.62);
    border:1px solid rgba(148,163,184,.22);
    color:#CBD5E1;font-size:.78rem;
}
.article-cover{
    position:relative;
    border-radius:28px;
    overflow:hidden;
    border:1px solid rgba(148,163,184,.22);
    box-shadow:0 30px 80px rgba(2,6,23,.58);
    min-height:310px;
    background:var(--bg-card);
}
.article-cover img{width:100%;height:100%;min-height:310px;object-fit:cover}
.article-cover::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 50%,rgba(7,7,13,.74));
    pointer-events:none;
}
.cover-caption{
    position:absolute;left:24px;right:24px;bottom:22px;z-index:2;
    display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
    color:#E2E8F0;font-size:.85rem;
}
.pull-quote{
    margin-top:28px;
    padding:22px 24px;
    border-left:3px solid var(--volt);
    background:linear-gradient(90deg,rgba(163,230,53,.10),rgba(6,182,212,.04));
    border-radius:0 var(--radius-md) var(--radius-md) 0;
    font-weight:600;
    color:#EFFFE0;
}
.article-shell{
    display:grid;
    grid-template-columns:minmax(0,1fr) 310px;
    gap:34px;
    align-items:start;
}
.article-panel{
    background:linear-gradient(180deg,rgba(18,18,42,.88),rgba(10,10,22,.96));
    border:1px solid var(--line);
    border-radius:var(--radius-xl);
    padding:34px;
    box-shadow:var(--shadow-card);
}
.article-sidebar{position:sticky;top:112px;display:grid;gap:18px}
.side-card{
    padding:22px;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    background:rgba(14,14,30,.78);
}
.side-card h3{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--chrome);margin:0 0 14px}
.toc-list{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.toc-list a{color:#CBD5E1;font-size:.88rem;line-height:1.45;display:block}
.toc-list a:hover{color:var(--volt)}
.article-content{color:#D6DEE9;font-size:1.02rem;line-height:1.72;overflow-wrap:anywhere}
.article-content > :first-child{margin-top:0}
.article-content > :last-child{margin-bottom:0}
.article-content h2,
.article-content h3{color:var(--white);line-height:1.32;scroll-margin-top:120px}
.article-content h2{font-size:clamp(1.45rem,3vw,2rem);margin:42px 0 16px;padding-top:8px}
.article-content h3{font-size:1.22rem;margin:30px 0 12px}
.article-content p{margin:0 0 18px}
.article-content a{color:#A5F3FC;text-decoration:underline;text-decoration-color:rgba(6,182,212,.5);text-underline-offset:4px}
.article-content strong{color:#FFFFFF}
.article-content ul,
.article-content ol{margin:0 0 20px;padding-left:24px}
.article-content li{margin:8px 0}
.article-content blockquote{
    margin:28px 0;padding:22px 24px;
    border-left:3px solid var(--plasma);
    background:rgba(6,182,212,.08);
    border-radius:0 var(--radius-md) var(--radius-md) 0;
    color:#E0F2FE;
}
.article-content img{border-radius:var(--radius-lg);margin:26px 0;border:1px solid var(--line)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;overflow:hidden;border-radius:var(--radius-md)}
.article-content th,
.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.article-content th{background:rgba(163,230,53,.08);color:#EFFFE0}
.article-content code{padding:2px 6px;border-radius:6px;background:rgba(148,163,184,.12);color:#A5F3FC}
.feature-card{padding:25px;min-height:100%}
.feature-icon{
    width:48px;height:48px;border-radius:15px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(163,230,53,.12);color:var(--volt);
    border:1px solid rgba(163,230,53,.26);
    margin-bottom:18px;font-size:1.1rem;
}
.feature-card h3{margin:0 0 10px;font-size:1.08rem}
.feature-card p{margin:0;color:var(--chrome);font-size:.92rem}
.bonus-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
.bonus-main{
    position:relative;overflow:hidden;padding:38px;
    border-radius:var(--radius-xl);
    border:1px solid rgba(163,230,53,.28);
    background:
      linear-gradient(125deg,rgba(163,230,53,.15),rgba(6,182,212,.10) 54%,rgba(18,18,42,.94)),
      var(--bg-card);
}
.bonus-main::after{
    content:"";
    position:absolute;width:230px;height:230px;border-radius:50%;
    right:-80px;top:-90px;background:rgba(163,230,53,.12);filter:blur(2px);
}
.bonus-main h2{font-size:clamp(1.7rem,3.5vw,2.6rem);line-height:1.18;margin:14px 0 14px}
.bonus-main p{color:#D5DEE9;max-width:680px}
.bonus-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
.stat{padding:15px;border:1px solid rgba(148,163,184,.18);border-radius:var(--radius-md);background:rgba(7,7,13,.38)}
.stat strong{display:block;color:var(--volt);font-size:1.25rem;line-height:1.2}
.stat span{display:block;color:#94A3B8;font-size:.76rem;margin-top:4px}
.payment-panel{padding:28px;border:1px solid var(--line);border-radius:var(--radius-xl);background:rgba(14,14,30,.78)}
.payment-list{display:grid;gap:12px;margin-top:20px}
.payment-item{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:var(--radius-md);background:rgba(255,255,255,.025);border:1px solid rgba(148,163,184,.12)}
.payment-item i{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(6,182,212,.10);color:#67E8F9;flex:none}
.payment-item strong{display:block;font-size:.9rem}
.payment-item span{display:block;color:#94A3B8;font-size:.78rem}
.quote-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quote-card{padding:24px;height:100%}
.quote-card .stars{color:#FACC15;font-size:.82rem;letter-spacing:2px;margin-bottom:14px}
.quote-card p{margin:0;color:#D7E3EE;font-size:.94rem}
.quote-author{display:flex;align-items:center;gap:11px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--volt),var(--plasma));color:var(--ink);font-weight:900}
.quote-author strong{display:block;font-size:.88rem}
.quote-author span{display:block;color:#94A3B8;font-size:.73rem}
details.faq{
    border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(14,14,30,.6);
    padding:18px 20px;transition:border-color .2s ease,background .2s ease;margin-bottom:12px;
}
details.faq:hover{border-color:var(--line-strong);background:rgba(22,22,56,.7)}
details.faq summary{
    cursor:pointer;list-style:none;font-weight:700;font-size:1rem;
    display:flex;justify-content:space-between;gap:16px;align-items:center;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--volt);font-size:.8rem}
details.faq[open] summary::after{content:"\f068"}
details.faq p{color:var(--chrome);margin:12px 0 0;font-size:.94rem}
.category-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.category-link{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px;border:1px solid var(--line);border-radius:var(--radius-lg);
    background:rgba(14,14,30,.62);transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.category-link:hover{transform:translateY(-4px);border-color:rgba(6,182,212,.42);background:rgba(6,182,212,.06)}
.category-link strong{display:block;font-size:.96rem}
.category-link span{display:block;color:#94A3B8;font-size:.78rem;margin-top:3px}
.category-link i{color:var(--plasma)}
.cta-band{
    position:relative;overflow:hidden;padding:42px;
    border-radius:var(--radius-xl);
    border:1px solid rgba(163,230,53,.28);
    background:
      linear-gradient(120deg,rgba(163,230,53,.14),rgba(6,182,212,.12)),
      rgba(14,14,30,.88);
}
.cta-band::after{
    content:"\f1e3";
    font-family:"Font Awesome 6 Free";font-weight:900;
    position:absolute;right:28px;bottom:-32px;
    font-size:9rem;color:rgba(255,255,255,.035);
    transform:rotate(-12deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{margin:0 0 8px;font-size:clamp(1.6rem,3.2vw,2.35rem);line-height:1.2}
.cta-inner p{margin:0;color:#CBD5E1;max-width:700px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}
.trust-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(7,7,13,.58)}
.trust-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust-item{display:flex;align-items:center;gap:12px;padding:16px 0}
.trust-item i{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(163,230,53,.08);color:var(--volt);border:1px solid rgba(163,230,53,.18);flex:none}
.trust-item strong{display:block;font-size:.87rem}
.trust-item span{display:block;color:#94A3B8;font-size:.72rem}
.empty-state{
    min-height:420px;display:flex;align-items:center;justify-content:center;
    text-align:center;padding:40px 20px;
}
.empty-state > div{max-width:560px}
.empty-state i{font-size:2rem;color:var(--volt);margin-bottom:18px}
.empty-state h1{font-size:clamp(1.7rem,4vw,2.8rem);line-height:1.2;margin:0 0 12px}
.empty-state p{color:var(--chrome);margin:0 0 24px}
.fab{
    position:fixed;left:16px;bottom:96px;z-index:50;
    width:58px;height:58px;border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(7,7,13,.82);
    color:#A5F3FC;
    border:2px solid transparent;
    background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,var(--volt),var(--plasma));
    background-origin:border-box;background-clip:padding-box,border-box;
    box-shadow:0 0 22px rgba(6,182,212,.45);
    opacity:.78;
    transition:transform .24s ease,opacity .24s ease,box-shadow .24s ease;
    animation:fabPulse 2.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 34px rgba(6,182,212,.7)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .fab-dot{
    position:absolute;top:2px;right:2px;
    width:12px;height:12px;border-radius:50%;
    background:var(--laser);
    box-shadow:0 0 12px rgba(244,63,94,.9);
}
@keyframes fabPulse{
    0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35)}
    50%{box-shadow:0 0 32px rgba(163,230,53,.56)}
}
@media (max-width:1023px){
    .article-shell{grid-template-columns:1fr}
    .article-sidebar{position:static;grid-template-columns:repeat(2,1fr)}
    .grid-3,.quote-wall{grid-template-columns:repeat(2,1fr)}
    .grid-4,.trust-row{grid-template-columns:repeat(2,1fr)}
    .bonus-grid{grid-template-columns:1fr}
    .cta-inner{align-items:flex-start;flex-direction:column}
}
@media (max-width:768px){
    .container{padding:0 16px}
    .section{padding:56px 0}
    .article-masthead{padding-top:44px}
    .article-masthead::before{height:700px}
    .article-heading{font-size:clamp(1.85rem,8vw,3rem)}
    .article-cover,.article-cover img{min-height:240px}
    .cover-caption{align-items:flex-start;flex-direction:column;gap:8px}
    .article-panel{padding:24px}
    .article-content{font-size:.98rem}
    .grid-2,.grid-3,.grid-4,.quote-wall,.category-matrix,.article-sidebar,.trust-row{grid-template-columns:1fr}
    .bonus-main,.cta-band{padding:28px}
    .bonus-stats{grid-template-columns:1fr}
}
@media (max-width:520px){
    .container{padding:0 14px}
    .article-heading{letter-spacing:-.01em}
    .article-summary{font-size:.96rem}
    .article-panel{padding:20px}
    .article-content h2{font-size:1.38rem}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .fab{left:12px;bottom:82px;width:54px;height:54px}
}

/* roulang page: category2 */
:root{
  --bg-void:#07070D;
  --bg-abyss:#0E0E1E;
  --bg-card:#12122A;
  --bg-soft:#161638;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(163,230,53,.35);
  --volt:#A3E635;
  --plasma:#06B6D4;
  --laser:#F43F5E;
  --white:#FFFFFF;
  --chrome:#94A3B8;
  --ink:#0B0B14;
  --radius-xl:26px;
  --radius-lg:18px;
  --radius-md:12px;
  --shadow-volt:0 0 24px rgba(163,230,53,.35);
  --shadow-plasma:0 0 24px rgba(6,182,212,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.65);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(6,182,212,.20), transparent 60%),
    radial-gradient(900px 520px at 6% 4%, rgba(163,230,53,.16), transparent 62%),
    var(--bg-void);
  color:var(--white);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{font-weight:800;line-height:1.25;margin:0}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--volt);
  background:rgba(163,230,53,.10);
  border:1px solid rgba(163,230,53,.32);
}
.eyebrow.plasma{color:var(--plasma);background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.32)}
.eyebrow.laser{color:var(--laser);background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.32)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--volt),#5EEAD4);color:var(--ink);box-shadow:var(--shadow-volt)}
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(163,230,53,.55)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(255,255,255,.03);color:var(--white);border-color:rgba(148,163,184,.35)}
.btn-ghost:hover{border-color:var(--plasma);color:#CFFAFE;box-shadow:var(--shadow-plasma)}
.btn-plasma{background:linear-gradient(120deg,var(--plasma),#3B82F6);color:#04121B;box-shadow:var(--shadow-plasma)}
.btn-plasma:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(6,182,212,.55)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--volt);outline-offset:3px;border-radius:10px}
.card{
  background:linear-gradient(180deg, rgba(18,18,42,.96), rgba(11,11,24,.96));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(163,230,53,.16)}
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg, rgba(14,14,30,.35), rgba(7,7,13,.85))}
.section-title{font-size:clamp(1.5rem,3vw,2.15rem);font-weight:800;line-height:1.25;margin:14px 0 12px}
.section-desc{color:var(--chrome);max-width:760px;font-size:.98rem;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:.72rem;font-weight:600;letter-spacing:.04em;
  background:rgba(6,182,212,.10);border:1px solid rgba(6,182,212,.30);color:#A5F3FC;
}
.hot-tag{
  position:absolute;top:12px;right:12px;z-index:3;
  padding:4px 11px;border-radius:8px;font-size:.66rem;font-weight:800;letter-spacing:.1em;
  background:linear-gradient(120deg,var(--laser),#FB7185);color:#fff;
  box-shadow:0 0 16px rgba(244,63,94,.5);
}
.list-tick{display:flex;gap:12px;align-items:flex-start;color:#CBD5E1;font-size:.94rem}
.list-tick i{color:var(--volt);margin-top:5px;flex-shrink:0}
.nav-link{position:relative;padding:8px 2px;font-size:.92rem;font-weight:600;color:#CBD5E1;transition:color .2s ease}
.nav-link:hover{color:var(--white)}
.nav-link.active{color:var(--volt)}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--volt),var(--plasma));
}
details.faq{
  border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(14,14,30,.6);
  padding:18px 20px;transition:border-color .2s ease,background .2s ease;margin-bottom:12px;
}
details.faq:hover{border-color:var(--line-strong);background:rgba(22,22,56,.7)}
details.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:1rem;display:flex;justify-content:space-between;gap:16px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--volt);font-size:.8rem}
details.faq[open] summary::after{content:"\f068"}
details.faq p{color:var(--chrome);margin:12px 0 0;font-size:.94rem}
.footer-link{color:#94A3B8;font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
.footer-link:hover{color:var(--volt);padding-left:4px}
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(7,7,13,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.spec-hero{
  position:relative;overflow:hidden;border-radius:28px;
  border:1px solid var(--line);
  background-image:linear-gradient(115deg, rgba(7,7,13,.95) 10%, rgba(7,7,13,.78) 50%, rgba(6,182,212,.26)),url('/assets/images/fc2a9b6b8ab396e0.jpg');
  background-size:cover;background-position:center;
}
.spec-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.spec-cell{
  padding:20px 18px;border-right:1px solid var(--line);text-align:left;
}
.spec-cell:last-child{border-right:none}
.spec-num{font-size:1.6rem;font-weight:900;color:var(--volt);line-height:1.1}
.spec-label{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--chrome);margin-top:6px}
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--volt),var(--plasma))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-30px;top:5px;width:18px;height:18px;border-radius:50%;background:var(--bg-void);border:2px solid var(--volt);box-shadow:0 0 12px rgba(163,230,53,.5)}
.tl-step{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--plasma)}
.tl-title{font-weight:800;font-size:1.05rem;margin:4px 0 6px}
.tl-text{color:var(--chrome);font-size:.92rem}
.media-frame{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-card)}
.media-frame img{width:100%;height:100%;object-fit:cover}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:rgba(14,14,30,.5)}
.stat-item{padding:24px 20px;border-right:1px solid var(--line);text-align:left}
.stat-item:last-child{border-right:none}
.stat-value{font-size:1.9rem;font-weight:900;background:linear-gradient(120deg,var(--volt),var(--plasma));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.stat-caption{color:var(--chrome);font-size:.86rem;margin-top:6px}
.post-card{display:flex;flex-direction:column;overflow:hidden}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .thumb img{transform:scale(1.06)}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:.72rem;color:var(--chrome);text-transform:uppercase;letter-spacing:.06em}
.post-title{font-weight:800;font-size:1.02rem;line-height:1.4}
.post-excerpt{color:var(--chrome);font-size:.88rem}
.fab-link{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.9),rgba(7,7,13,.9)),linear-gradient(135deg,var(--volt),var(--plasma));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E2E8F0;font-size:1.15rem;
  opacity:.8;transition:opacity .25s ease, transform .25s ease, box-shadow .25s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab-link:hover{opacity:1;transform:scale(1.1) rotate(6deg);box-shadow:0 0 32px rgba(163,230,53,.6)}
.fab-link:active{transform:scale(.94)}
.fab-link .dot{position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;background:var(--laser);box-shadow:0 0 0 2px rgba(7,7,13,.9)}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}50%{box-shadow:0 0 30px rgba(163,230,53,.55)}}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg)}
table.cmp{width:100%;border-collapse:collapse;min-width:560px}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;font-size:.9rem;border-bottom:1px solid var(--line)}
table.cmp th{background:rgba(6,182,212,.08);color:#A5F3FC;font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
table.cmp td{color:#CBD5E1}
table.cmp tr:last-child td{border-bottom:none}
.cta-band{
  border:1px solid var(--line-strong);border-radius:var(--radius-xl);
  background:linear-gradient(120deg, rgba(163,230,53,.12), rgba(6,182,212,.14));
  padding:38px 32px;
}
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .spec-bar{grid-template-columns:repeat(2,1fr)}
  .spec-cell:nth-child(2){border-right:none}
  .spec-cell:nth-child(1),.spec-cell:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:none;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:none}
  .cta-band{padding:28px 22px}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .spec-bar{grid-template-columns:1fr}
  .spec-cell{border-right:none;border-bottom:1px solid var(--line)}
  .spec-cell:last-child{border-bottom:none}
  .btn{width:100%}
}

/* roulang page: category3 */
:root{
    --bg-void:#07070D;
    --bg-abyss:#0E0E1E;
    --bg-card:#12122A;
    --bg-soft:#161638;
    --line:rgba(148,163,184,.16);
    --line-strong:rgba(163,230,53,.35);
    --volt:#A3E635;
    --plasma:#06B6D4;
    --laser:#F43F5E;
    --white:#FFFFFF;
    --chrome:#94A3B8;
    --ink:#0B0B14;
    --radius-xl:26px;
    --radius-lg:18px;
    --radius-md:12px;
    --shadow-volt:0 0 24px rgba(163,230,53,.35);
    --shadow-plasma:0 0 24px rgba(6,182,212,.35);
    --shadow-card:0 18px 44px rgba(2,6,23,.65);
  }
html{scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
body{
    margin:0;
    background:
      radial-gradient(1100px 560px at 88% -8%, rgba(6,182,212,.20), transparent 60%),
      radial-gradient(900px 520px at 6% 4%, rgba(163,230,53,.16), transparent 62%),
      var(--bg-void);
    color:var(--white);
    font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
    line-height:1.62;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--volt);
    background:rgba(163,230,53,.10);
    border:1px solid rgba(163,230,53,.32);
  }
.eyebrow.plasma{color:var(--plasma);background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.32)}
.eyebrow.laser{color:var(--laser);background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.32)}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
    white-space:nowrap;
  }
.btn-primary{
    background:linear-gradient(120deg,var(--volt),#5EEAD4);
    color:var(--ink);
    box-shadow:var(--shadow-volt);
  }
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(163,230,53,.55)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
    background:rgba(255,255,255,.03);
    color:var(--white);
    border-color:rgba(148,163,184,.35);
  }
.btn-ghost:hover{border-color:var(--plasma);color:#CFFAFE;box-shadow:var(--shadow-plasma)}
.btn-plasma{
    background:linear-gradient(120deg,var(--plasma),#3B82F6);
    color:#04121B;
    box-shadow:var(--shadow-plasma);
  }
.btn-plasma:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 34px rgba(6,182,212,.55)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{
    outline:2px solid var(--volt);outline-offset:3px;border-radius:10px;
  }
.card{
    background:linear-gradient(180deg, rgba(18,18,42,.96), rgba(11,11,24,.96));
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
  }
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(163,230,53,.16)}
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg, rgba(14,14,30,.35), rgba(7,7,13,.85))}
.section-title{
    font-size:clamp(1.5rem,3vw,2.15rem);
    font-weight:800;line-height:1.25;margin:14px 0 12px;
  }
.section-desc{color:var(--chrome);max-width:760px;font-size:.98rem;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
.chip{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:.72rem;font-weight:600;letter-spacing:.04em;
    background:rgba(6,182,212,.10);border:1px solid rgba(6,182,212,.30);color:#A5F3FC;
  }
.hot-tag{
    position:absolute;top:12px;right:12px;z-index:3;
    padding:4px 11px;border-radius:8px;font-size:.66rem;font-weight:800;letter-spacing:.1em;
    background:linear-gradient(120deg,var(--laser),#FB7185);color:#fff;
    box-shadow:0 0 16px rgba(244,63,94,.5);
  }
.list-tick{display:flex;gap:12px;align-items:flex-start;color:#CBD5E1;font-size:.94rem}
.list-tick i{color:var(--volt);margin-top:5px}
.nav-link{
    position:relative;padding:8px 2px;font-size:.92rem;font-weight:600;color:#CBD5E1;transition:color .2s ease;
  }
.nav-link:hover{color:var(--white)}
.nav-link.active{color:var(--volt)}
.nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--volt),var(--plasma));
  }
details.faq{
    border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(14,14,30,.6);
    padding:18px 20px;transition:border-color .2s ease,background .2s ease;margin-bottom:12px;
  }
details.faq:hover{border-color:var(--line-strong);background:rgba(22,22,56,.7)}
details.faq summary{
    cursor:pointer;list-style:none;font-weight:700;font-size:1rem;
    display:flex;justify-content:space-between;gap:16px;align-items:center;
  }
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--volt);font-size:.8rem}
details.faq[open] summary::after{content:"\f068"}
details.faq p{color:var(--chrome);margin:12px 0 0;font-size:.94rem}
.footer-link{color:#94A3B8;font-size:.9rem;transition:color .2s ease,padding-left .2s ease}
.footer-link:hover{color:var(--volt);padding-left:4px}
.topbar{
    position:sticky;top:0;z-index:60;
    background:rgba(7,7,13,.86);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
.hero-shell{
    position:relative;overflow:hidden;border-radius:28px;
    border:1px solid var(--line);
    background-image:linear-gradient(115deg, rgba(7,7,13,.94) 12%, rgba(7,7,13,.72) 52%, rgba(6,182,212,.28)),url('/assets/images/0a8739b0eb2b3872.jpg');
    background-size:cover;background-position:center;
  }
.hero-badge-row{display:flex;flex-wrap:wrap;gap:10px}
.stat{
    padding:18px 20px;border-radius:var(--radius-md);
    background:rgba(7,7,13,.55);border:1px solid var(--line);
  }
.stat b{display:block;font-size:1.5rem;font-weight:800;color:var(--volt);line-height:1.1}
.stat span{font-size:.78rem;color:var(--chrome);text-transform:uppercase;letter-spacing:.08em}
.num-badge{
    width:44px;height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
    font-weight:800;color:var(--ink);background:linear-gradient(120deg,var(--volt),#5EEAD4);
    box-shadow:var(--shadow-volt);flex-shrink:0;
  }
.thumb{width:100%;height:190px;object-fit:cover;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.thumb-lg{width:100%;height:100%;min-height:280px;object-fit:cover;border-radius:var(--radius-lg)}
.step-line{position:relative;padding-left:64px}
.step-line .num-badge{position:absolute;left:0;top:0}
.marquee{
    display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;
  }
.marquee::-webkit-scrollbar{height:6px}
.marquee::-webkit-scrollbar-thumb{background:rgba(163,230,53,.3);border-radius:8px}
.pill-tabs{display:flex;gap:10px;flex-wrap:wrap}
.pill-tabs span{
    padding:7px 16px;border-radius:999px;font-size:.82rem;font-weight:600;
    border:1px solid var(--line);color:var(--chrome);background:rgba(14,14,30,.6);
  }
.pill-tabs span.on{color:var(--ink);background:linear-gradient(120deg,var(--volt),#5EEAD4);border-color:transparent}
.list-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.list-row:last-child{border-bottom:none}
.list-row img{width:96px;height:72px;object-fit:cover;border-radius:var(--radius-md);flex-shrink:0}
.list-row h3{font-size:1rem;font-weight:700;margin:0 0 6px;line-height:1.4;transition:color .2s ease}
.list-row a:hover h3{color:var(--volt)}
.list-row p{margin:0;color:var(--chrome);font-size:.86rem;line-height:1.55}
.list-meta{font-size:.74rem;color:#64748B;margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}
.fab{
    position:fixed;left:16px;bottom:96px;z-index:50;
    width:58px;height:58px;border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
    border:2px solid transparent;
    background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(140deg,var(--volt),var(--plasma));
    background-origin:border-box;background-clip:padding-box,border-box;
    box-shadow:0 0 22px rgba(6,182,212,.45);
    opacity:.82;
    animation:fabPulse 3.2s ease-in-out infinite;
    transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  }
.fab i{color:var(--volt);font-size:1.35rem;transition:transform .4s ease,color .25s ease}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 34px rgba(163,230,53,.6)}
.fab:hover i{transform:rotate(360deg);color:var(--plasma)}
.fab:active{transform:scale(.94) translateY(3px)}
.fab .dot{
    position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:999px;
    background:var(--laser);box-shadow:0 0 10px rgba(244,63,94,.9);border:2px solid #07070D;
  }
@keyframes fabPulse{0%,100%{opacity:.78}50%{opacity:1}}
@media (max-width:1024px){
    .grid-4{grid-template-columns:repeat(2,1fr)}
    .grid-3{grid-template-columns:repeat(2,1fr)}
    .section{padding:56px 0}
  }
@media (max-width:768px){
    .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
    .section{padding:46px 0}
    .stat b{font-size:1.28rem}
    .list-row img{width:80px;height:62px}
  }
@media (max-width:520px){
    .container{padding:0 16px}
    .btn{padding:12px 20px;font-size:.88rem}
    .hero-shell{border-radius:20px}
    .fab{left:12px;bottom:84px;width:54px;height:54px}
  }
.footbar{border-top:1px solid var(--line);margin-top:20px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;color:#64748B;font-size:.8rem}