/* roulang page: index */
:root{
  --bg-deep:#0F0C20;
  --bg-ocean:#0B1A30;
  --bg-panel:#131033;
  --bg-card:#151b36;
  --lime:#CCFF00;
  --cyan:#00F0FF;
  --white:#FFFFFF;
  --gray:#A6ACAF;
  --line:rgba(0,240,255,.18);
  --radius:14px;
  --radius-sm:9px;
  --shadow-neon:0 0 18px rgba(0,240,255,.28);
  --shadow-lime:0 0 16px rgba(204,255,0,.25);
  --font:'Be Vietnam Pro','Segoe UI',Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg-deep);color:var(--white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s}
a:hover{color:var(--lime)}
button{font-family:inherit;cursor:pointer;border:none}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:74px 0}
.section-head{margin-bottom:36px;max-width:720px}
.section-eyebrow{display:inline-block;font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--lime);border:1px solid rgba(204,255,0,.35);padding:4px 12px;border-radius:999px;margin-bottom:14px;background:rgba(204,255,0,.06)}
.section-head h2{font-size:1.85rem;line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--gray);font-size:.98rem}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(15,12,32,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo-mark{width:38px;height:38px;flex:none;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--lime));display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--shadow-neon)}
.logo-text{font-weight:800;font-size:1rem;line-height:1.2;color:var(--white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo-text small{display:block;font-weight:500;font-size:.62rem;letter-spacing:.14em;color:var(--cyan);text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{color:var(--gray);font-size:.92rem;font-weight:600;padding:6px 2px;position:relative}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--lime));border-radius:2px;transform:scaleX(0);transition:transform .25s}
.main-nav a:hover{color:var(--white)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--white)}
.auth-box{display:flex;align-items:center;gap:10px;flex:none}
.btn-login{background:none;color:var(--cyan);font-weight:700;font-size:.88rem;padding:9px 12px;border-radius:8px;display:inline-block}
.btn-login:hover{color:var(--lime)}
.btn-signup{background:linear-gradient(135deg,var(--lime),var(--cyan));color:#0F0C20;font-weight:800;font-size:.88rem;padding:10px 20px;border-radius:999px;display:inline-block;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(204,255,0,.45);color:#0F0C20}
.nav-toggle{display:none;background:none;color:var(--white);font-size:1.4rem;padding:6px}
/* ===== Hero ===== */
.hero{padding:132px 0 80px;background:linear-gradient(rgba(11,26,48,.88),rgba(15,12,32,.94)),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 20% 30%,rgba(0,240,255,.12),transparent 55%),radial-gradient(ellipse at 85% 70%,rgba(204,255,0,.08),transparent 50%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:44px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,240,255,.1);border:1px solid var(--line);color:var(--cyan);font-size:.78rem;font-weight:700;padding:6px 14px;border-radius:999px;margin-bottom:18px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(204,255,0,.6)}50%{box-shadow:0 0 0 7px rgba(204,255,0,0)}}
.hero h1{font-size:2.35rem;line-height:1.25;font-weight:800;margin-bottom:18px}
.hero h1 .hl{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{color:#c8d5e2;font-size:1.02rem;max-width:560px;margin-bottom:26px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.btn-primary{background:linear-gradient(135deg,var(--lime),#9ef000);color:#0F0C20;font-weight:800;font-size:1rem;padding:14px 30px;border-radius:999px;display:inline-flex;align-items:center;gap:8px;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.5);color:#0F0C20}
.btn-outline{border:1px solid var(--cyan);color:var(--cyan);font-weight:700;font-size:1rem;padding:13px 26px;border-radius:999px;display:inline-flex;align-items:center;gap:8px;background:rgba(0,240,255,.05);transition:background .2s,box-shadow .2s}
.btn-outline:hover{background:rgba(0,240,255,.14);box-shadow:var(--shadow-neon);color:var(--cyan)}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:1.4rem;color:var(--lime)}
.hero-stat span{font-size:.8rem;color:var(--gray)}
.hero-board{background:rgba(19,16,51,.85);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-neon);backdrop-filter:blur(6px)}
.hero-board h3{font-size:.95rem;display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;color:var(--cyan);letter-spacing:.05em;text-transform:uppercase}
.hero-board h3 .live{font-size:.68rem;background:rgba(255,60,90,.15);color:#ff5c7a;padding:3px 10px;border-radius:999px;border:1px solid rgba(255,60,90,.4);animation:pulse 2s infinite}
.board-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(166,172,175,.15)}
.board-row:last-child{border-bottom:none}
.board-rank{width:28px;height:28px;flex:none;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.82rem;background:rgba(0,240,255,.12);color:var(--cyan)}
.board-row:nth-child(2) .board-rank{background:rgba(204,255,0,.16);color:var(--lime)}
.board-info{flex:1;min-width:0}
.board-info b{display:block;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.board-info span{font-size:.74rem;color:var(--gray)}
.board-win{font-weight:800;font-size:.9rem;color:var(--lime);white-space:nowrap}
/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:start}
.news-list li{border-bottom:1px solid rgba(166,172,175,.12)}
.news-list a{display:flex;align-items:baseline;gap:14px;padding:15px 4px;color:var(--white);font-weight:600;font-size:.96rem;transition:background .2s,padding-left .2s;border-radius:8px}
.news-list a:hover{color:var(--cyan);background:rgba(0,240,255,.05);padding-left:12px}
.news-date{flex:none;font-size:.76rem;color:var(--gray);font-weight:500;min-width:86px}
.news-cat{flex:none;font-size:.7rem;color:var(--lime);border:1px solid rgba(204,255,0,.3);padding:1px 8px;border-radius:999px}
.news-empty{padding:26px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--gray);text-align:center}
.news-side{background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.news-side img{width:100%;height:170px;object-fit:cover}
.news-side-body{padding:22px}
.news-side-body h3{font-size:1.05rem;margin-bottom:10px}
.news-side-body p{color:var(--gray);font-size:.88rem;margin-bottom:16px}
/* ===== USP trio ===== */
.usp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.usp-card{background:linear-gradient(160deg,rgba(0,240,255,.06),rgba(19,16,51,.9));border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .25s,box-shadow .25s}
.usp-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-neon)}
.usp-icon{width:50px;height:50px;border-radius:12px;background:rgba(204,255,0,.1);border:1px solid rgba(204,255,0,.3);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.usp-card h3{font-size:1.08rem;margin-bottom:10px}
.usp-card p{color:var(--gray);font-size:.9rem}
/* ===== Games ===== */
.games-band{background:linear-gradient(rgba(11,26,48,.92),rgba(15,12,32,.95)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat}
.games-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.game-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:transform .25s,box-shadow .25s}
.game-card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 0 22px rgba(0,240,255,.35)}
.game-card img{width:100%;height:150px;object-fit:cover}
.game-tag{position:absolute;top:10px;left:10px;font-size:.66rem;font-weight:800;padding:3px 10px;border-radius:999px;background:linear-gradient(90deg,#ff2d6b,#ff7a00);color:#fff;letter-spacing:.05em}
.game-tag.new{background:linear-gradient(90deg,var(--cyan),#4facfe);color:#06121f}
.game-body{padding:15px 16px 18px}
.game-body h3{font-size:.95rem;margin-bottom:4px}
.game-body span{font-size:.76rem;color:var(--gray)}
.game-body .game-cta{margin-top:12px;display:inline-block;font-size:.8rem;font-weight:700;color:var(--lime);border:1px solid rgba(204,255,0,.35);padding:6px 16px;border-radius:999px;transition:background .2s}
.game-body .game-cta:hover{background:rgba(204,255,0,.12)}
/* ===== Knowledge ===== */
.know-wrap{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.know-block h2{font-size:1.25rem;margin-bottom:12px;color:var(--white);padding-left:14px;border-left:3px solid var(--lime);line-height:1.4}
.know-block p{color:var(--gray);font-size:.93rem;margin-bottom:12px}
.know-block ol,.know-block ul{padding-left:20px;color:#c8d5e2;font-size:.92rem}
.know-block ol{list-style:decimal}
.know-block ul{list-style:disc}
.know-block li{margin-bottom:8px}
.know-block li b{color:var(--cyan)}
/* ===== Entry matrix ===== */
.matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.matrix-item{display:flex;align-items:center;gap:14px;background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px;transition:border-color .2s,box-shadow .2s;color:var(--white)}
.matrix-item:hover{border-color:var(--lime);box-shadow:var(--shadow-lime);color:var(--white)}
.matrix-item .mi-icon{font-size:24px;flex:none}
.matrix-item b{display:block;font-size:.9rem}
.matrix-item span{font-size:.74rem;color:var(--gray)}
/* ===== Security ===== */
.sec-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.sec-media{position:relative}
.sec-media img{border-radius:var(--radius);border:1px solid var(--line);width:100%;height:340px;object-fit:cover;box-shadow:var(--shadow-neon)}
.sec-chip{position:absolute;bottom:-16px;right:18px;background:rgba(15,12,32,.95);border:1px solid rgba(204,255,0,.4);border-radius:var(--radius-sm);padding:12px 18px;font-size:.82rem;box-shadow:var(--shadow-lime)}
.sec-chip b{color:var(--lime)}
.sec-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid rgba(166,172,175,.12)}
.sec-list li:last-child{border-bottom:none}
.sec-list .si{width:40px;height:40px;flex:none;border-radius:10px;background:rgba(0,240,255,.1);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:19px}
.sec-list b{display:block;font-size:.95rem;margin-bottom:3px}
.sec-list p{color:var(--gray);font-size:.87rem}
.pay-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.pay-badge{font-size:.78rem;font-weight:800;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:rgba(0,240,255,.06);color:var(--cyan)}
/* ===== App ===== */
.app-band{background:linear-gradient(rgba(15,12,32,.9),rgba(11,26,48,.93)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.app-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.steps li{display:flex;gap:16px;padding:13px 0}
.step-num{width:34px;height:34px;flex:none;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--lime));color:#0F0C20;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.steps b{display:block;font-size:.95rem}
.steps p{color:var(--gray);font-size:.87rem}
.app-panel{background:rgba(19,16,51,.85);border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:left}
.app-panel h3{font-size:1.15rem;margin-bottom:10px}
.app-panel p{color:var(--gray);font-size:.9rem;margin-bottom:20px}
.app-btns{display:flex;gap:12px;flex-wrap:wrap}
.app-note{margin-top:16px;font-size:.78rem;color:var(--gray)}
/* ===== FAQ ===== */
.faq-list{max-width:820px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:var(--bg-panel);overflow:hidden}
.faq-item summary{cursor:pointer;padding:17px 20px;font-weight:700;font-size:.96rem;display:flex;justify-content:space-between;align-items:center;list-style:none;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--lime);font-size:1.3rem;font-weight:400;transition:transform .25s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--cyan)}
.faq-item .faq-body{padding:0 20px 18px;color:var(--gray);font-size:.9rem}
/* ===== CTA ===== */
.cta-final{text-align:center;padding:80px 0}
.cta-final h2{font-size:2rem;margin-bottom:14px}
.cta-final h2 .hl{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.cta-final p{color:var(--gray);max-width:600px;margin:0 auto 28px}
/* ===== Footer ===== */
.site-footer{background:#0a0817;border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;margin-bottom:36px}
.footer-brand p{color:var(--gray);font-size:.86rem;margin-top:14px;max-width:320px}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--cyan);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--gray);font-size:.88rem}
.footer-col a:hover{color:var(--lime)}
.footer-col .pay-badge{display:inline-block;margin:0 6px 8px 0}
.footer-bottom{border-top:1px solid rgba(166,172,175,.12);padding-top:22px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.footer-bottom p{color:var(--gray);font-size:.8rem}
.age-badge{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:2px solid var(--lime);color:var(--lime);font-weight:800;font-size:.8rem}
/* ===== FAB ===== */
.fab{position:fixed;left:16px;bottom:96px;z-index:200;display:flex;align-items:center;gap:9px;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);border:2px solid transparent;background-clip:padding-box;border-radius:999px;padding:12px 18px;min-width:48px;min-height:48px;color:var(--white);font-weight:700;font-size:.85rem;opacity:.7;box-shadow:0 0 15px rgba(0,240,255,.5);transition:opacity .25s,box-shadow .25s,transform .15s;border-image:linear-gradient(135deg,var(--lime),var(--cyan)) 1;outline:2px solid rgba(0,240,255,.5);outline-offset:-2px}
.fab:hover{opacity:1;box-shadow:0 0 26px rgba(0,240,255,.7);color:var(--white)}
.fab:active{transform:scale(.95);outline-color:#ff007f}
.fab .fab-dot{position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;background:var(--lime);animation:pulse 1.6s infinite}
.fab .fab-icon{font-size:19px}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .games-grid,.matrix-grid{grid-template-columns:repeat(2,1fr)}
  .usp-grid{grid-template-columns:1fr 1fr 1fr}
  .sec-grid,.app-grid,.know-wrap,.news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{display:none;position:fixed;top:66px;left:0;right:0;background:rgba(15,12,32,.98);flex-direction:column;align-items:flex-start;padding:20px 24px;gap:6px;border-bottom:1px solid var(--line)}
  .main-nav.open{display:flex}
  .main-nav a{width:100%;padding:12px 4px;font-size:1rem}
  .nav-toggle{display:block}
}
@media (max-width:768px){
  .hero{padding:112px 0 60px}
  .hero h1{font-size:1.7rem}
  .usp-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-head h2{font-size:1.5rem}
  .cta-final h2{font-size:1.55rem}
}
@media (max-width:520px){
  .games-grid,.matrix-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .logo-text{font-size:.82rem}
  .btn-signup{padding:9px 14px;font-size:.8rem}
  .btn-login{padding:9px 6px;font-size:.8rem}
  .hero-ctas .btn-primary,.hero-ctas .btn-outline{width:100%;justify-content:center}
  .news-list a{flex-wrap:wrap;gap:6px}
  .fab{bottom:84px;padding:11px 14px}
  .fab span.fab-label{display:none}
}

/* roulang page: article */
:root{
  --bg-deep:#0f0c20;
  --bg-ocean:#0b1a30;
  --bg-panel:#131f38;
  --bg-card:#16233f;
  --accent-lime:#ccff00;
  --accent-cyan:#00f0ff;
  --text-main:#ffffff;
  --text-soft:#a6acaf;
  --text-mute:#7c8590;
  --border-soft:rgba(0,240,255,.16);
  --border-lime:rgba(204,255,0,.35);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-neon:0 0 18px rgba(0,240,255,.22);
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --font-body:"Be Vietnam Pro","Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:radial-gradient(1200px 600px at 80% -10%,rgba(0,240,255,.08),transparent 60%),
             radial-gradient(900px 500px at 0% 30%,rgba(204,255,0,.05),transparent 55%),
             linear-gradient(160deg,var(--bg-deep) 0%,var(--bg-ocean) 100%);
  color:var(--text-main);
  line-height:1.65;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:var(--accent-cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-lime)}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,20,40,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-soft);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  font-size:1.6rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(0,240,255,.18),rgba(204,255,0,.14));
  border:1px solid var(--border-soft);border-radius:12px;box-shadow:var(--shadow-neon);
}
.logo-text{font-weight:800;font-size:1.02rem;color:#fff;line-height:1.2;display:flex;flex-direction:column}
.logo-text small{font-weight:500;font-size:.68rem;color:var(--accent-cyan);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{
  color:var(--text-soft);font-weight:600;font-size:.94rem;padding:6px 2px;position:relative;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent-cyan),var(--accent-lime));
  transform:scaleX(0);transition:transform .25s ease;transform-origin:left;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--accent-lime)}
.main-nav a.active::after{transform:scaleX(1)}
.auth-box{display:flex;align-items:center;gap:10px}
.btn-login{color:#fff;font-weight:600;font-size:.9rem;padding:9px 14px;border-radius:var(--radius-sm)}
.btn-login:hover{color:var(--accent-cyan)}
.btn-signup{
  background:linear-gradient(135deg,var(--accent-lime),#9be000);
  color:#0a1428;font-weight:800;font-size:.9rem;padding:10px 20px;border-radius:999px;
  box-shadow:0 0 16px rgba(204,255,0,.35);transition:transform .2s ease,box-shadow .2s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.55);color:#0a1428}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--border-soft);color:#fff;
  font-size:1.2rem;padding:6px 12px;border-radius:var(--radius-sm);
}
.nav-toggle:hover{border-color:var(--accent-cyan)}

/* ===== Article Banner ===== */
.article-banner{
  margin-top:72px;position:relative;
  background:url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  padding:70px 0 56px;
}
.article-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,26,48,.82) 0%,rgba(15,12,32,.94) 100%);
}
.banner-inner{position:relative;z-index:1;max-width:820px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:var(--text-mute);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-soft)}
.breadcrumb a:hover{color:var(--accent-cyan)}
.breadcrumb .sep{color:var(--text-mute)}
.article-banner h1{
  font-size:2rem;font-weight:800;line-height:1.3;margin-bottom:18px;
  text-shadow:0 2px 18px rgba(0,240,255,.25);
}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;
  padding:6px 14px;border-radius:999px;background:rgba(0,240,255,.1);
  border:1px solid var(--border-soft);color:var(--accent-cyan);
}
.meta-chip.lime{background:rgba(204,255,0,.1);border-color:var(--border-lime);color:var(--accent-lime)}

/* ===== Layout ===== */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;
  padding:48px 0 72px;align-items:start;
}
.article-main{min-width:0}
.article-body{
  background:var(--bg-panel);border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);padding:36px 38px;box-shadow:var(--shadow-card);
}
.article-body h2{
  font-size:1.4rem;color:var(--accent-cyan);margin:30px 0 14px;line-height:1.35;
  padding-left:14px;border-left:3px solid var(--accent-lime);
}
.article-body h3{font-size:1.15rem;color:#fff;margin:24px 0 12px}
.article-body p{margin:0 0 16px;color:#d7dde3;font-size:1rem}
.article-body ul,.article-body ol{margin:0 0 18px 22px;color:#d7dde3}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:var(--radius-md);margin:18px 0;border:1px solid var(--border-soft)}
.article-body a{color:var(--accent-lime);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-cyan)}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;border-left:3px solid var(--accent-cyan);
  background:rgba(0,240,255,.06);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-soft);
}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem}
.article-body table th,.article-body table td{border:1px solid var(--border-soft);padding:10px 12px;text-align:left}
.article-body table th{background:rgba(0,240,255,.08);color:var(--accent-cyan)}

/* Empty state */
.empty-state{
  background:var(--bg-panel);border:1px dashed var(--border-lime);
  border-radius:var(--radius-lg);padding:60px 30px;text-align:center;
}
.empty-state .empty-icon{font-size:2.6rem;margin-bottom:14px}
.empty-state h2{font-size:1.3rem;margin-bottom:10px;color:#fff}
.empty-state p{color:var(--text-soft);margin-bottom:22px}
.btn-back-home{
  display:inline-block;background:linear-gradient(135deg,var(--accent-cyan),#00b8d9);
  color:#06121f;font-weight:800;padding:12px 28px;border-radius:999px;
  box-shadow:0 0 16px rgba(0,240,255,.35);transition:transform .2s ease;
}
.btn-back-home:hover{transform:translateY(-2px);color:#06121f}

/* Share / after-article CTA */
.article-cta{
  margin-top:28px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(0,240,255,.1),rgba(204,255,0,.08));
  border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:30px 32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.article-cta h3{font-size:1.2rem;margin-bottom:6px}
.article-cta p{color:var(--text-soft);font-size:.92rem;max-width:520px}
.article-cta .btn-signup{white-space:nowrap;font-size:1rem;padding:13px 28px}

/* ===== Sidebar ===== */
.article-side{display:flex;flex-direction:column;gap:24px;position:sticky;top:92px}
.side-block{
  background:var(--bg-panel);border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);overflow:hidden;
}
.side-block .side-head{
  padding:14px 18px;font-weight:800;font-size:.95rem;color:var(--accent-lime);
  border-bottom:1px solid var(--border-soft);background:rgba(204,255,0,.05);
  display:flex;align-items:center;gap:8px;
}
.side-block .side-body{padding:18px}
.side-cover{position:relative}
.side-cover img{width:100%;height:170px;object-fit:cover}
.side-cover .cover-tag{
  position:absolute;top:12px;left:12px;background:var(--accent-lime);color:#0a1428;
  font-size:.72rem;font-weight:800;padding:4px 12px;border-radius:999px;letter-spacing:.5px;
}
.side-body p{font-size:.9rem;color:var(--text-soft);margin-bottom:14px}
.side-links{list-style:none}
.side-links li{border-bottom:1px solid rgba(255,255,255,.06)}
.side-links li:last-child{border-bottom:none}
.side-links a{
  display:flex;align-items:center;gap:10px;padding:12px 4px;color:#d7dde3;font-size:.92rem;font-weight:600;
}
.side-links a:hover{color:var(--accent-cyan);padding-left:10px;transition:all .2s ease}
.side-links .arrow{color:var(--accent-lime);font-size:.8rem}
.steps-mini{list-style:none;counter-reset:step}
.steps-mini li{
  counter-increment:step;display:flex;gap:12px;align-items:flex-start;padding:10px 0;
  font-size:.9rem;color:#d7dde3;
}
.steps-mini li::before{
  content:counter(step);flex:0 0 26px;height:26px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,240,255,.12);border:1px solid var(--border-soft);border-radius:50%;
  color:var(--accent-cyan);font-weight:800;font-size:.8rem;
}
.pay-badge{
  display:inline-block;background:rgba(0,240,255,.1);border:1px solid var(--border-soft);
  color:var(--accent-cyan);font-size:.78rem;font-weight:700;padding:6px 12px;border-radius:999px;
  margin:0 6px 8px 0;
}
.side-btn{
  display:block;text-align:center;background:linear-gradient(135deg,var(--accent-lime),#9be000);
  color:#0a1428;font-weight:800;padding:12px;border-radius:999px;margin-top:6px;
  box-shadow:0 0 14px rgba(204,255,0,.3);transition:transform .2s ease;
}
.side-btn:hover{transform:translateY(-2px);color:#0a1428}

/* ===== FAB ===== */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:90;
  display:flex;align-items:center;gap:9px;padding:12px 18px;min-height:48px;
  background:rgba(0,0,0,.6);backdrop-filter:blur(8px);
  border:2px solid transparent;border-radius:999px;
  background-image:linear-gradient(rgba(10,14,28,.9),rgba(10,14,28,.9)),linear-gradient(120deg,var(--accent-lime),var(--accent-cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 15px rgba(0,240,255,.5);color:#fff;font-weight:700;font-size:.86rem;
  opacity:.7;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab-support:hover{opacity:1;transform:scale(1.06);box-shadow:0 0 26px rgba(0,240,255,.75);color:#fff}
.fab-support:active{transform:scale(.95)}
.fab-support .fab-icon{font-size:1.2rem;filter:drop-shadow(0 0 6px rgba(0,240,255,.8))}
.fab-support .fab-dot{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:#ff3b5c;box-shadow:0 0 8px rgba(255,59,92,.9);animation:blinkDot 1.4s infinite;
}
@keyframes blinkDot{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== Footer ===== */
.site-footer{
  background:rgba(9,14,28,.95);border-top:1px solid var(--border-soft);
  padding:52px 0 26px;margin-top:10px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:34px}
.footer-brand p{color:var(--text-soft);font-size:.88rem;margin-top:14px;line-height:1.6}
.footer-col h4{
  font-size:.92rem;color:var(--accent-cyan);margin-bottom:14px;letter-spacing:.5px;text-transform:uppercase;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:9px}
.footer-col a{color:var(--text-soft);font-size:.9rem}
.footer-col a:hover{color:var(--accent-lime)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);padding-top:20px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center;
}
.footer-bottom p{color:var(--text-mute);font-size:.82rem}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border:2px solid var(--accent-lime);border-radius:50%;color:var(--accent-lime);
  font-weight:800;font-size:.9rem;flex-shrink:0;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav{
    position:fixed;top:72px;left:0;right:0;flex-direction:column;align-items:flex-start;
    gap:0;background:rgba(11,20,40,.98);border-bottom:1px solid var(--border-soft);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .main-nav.open{max-height:320px}
  .main-nav a{width:100%;padding:14px 22px;border-bottom:1px solid rgba(255,255,255,.05)}
  .main-nav a::after{display:none}
  .nav-toggle{display:block}
  .article-banner{padding:50px 0 40px}
  .article-banner h1{font-size:1.5rem}
  .article-body{padding:26px 22px}
  .article-cta{padding:24px 22px}
}
@media (max-width:520px){
  .header-inner{gap:10px}
  .logo-text{font-size:.88rem}
  .logo-text small{font-size:.6rem}
  .btn-login{padding:8px 8px;font-size:.82rem}
  .btn-signup{padding:9px 14px;font-size:.82rem}
  .article-banner h1{font-size:1.3rem}
  .article-body h2{font-size:1.2rem}
  .footer-grid{grid-template-columns:1fr}
  .fab-support{padding:10px 14px;font-size:.8rem}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0B1A30;
  --bg-violet:#0F0C20;
  --bg-panel:#122642;
  --bg-card:#14294a;
  --accent:#00F0FF;
  --accent-lime:#CCFF00;
  --hot:#FF3D71;
  --text:#FFFFFF;
  --text-dim:#A6ACAF;
  --line:rgba(0,240,255,.18);
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.35);
  --font:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:linear-gradient(160deg,var(--bg-violet) 0%,var(--bg-deep) 45%,#081426 100%);
  color:var(--text);
  line-height:1.65;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-lime)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{list-style:none}
.container{width:min(1160px,92%);margin:0 auto}

/* ===== HEADER ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,20,38,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  font-size:1.7rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 30% 30%,#0e3a63,#0B1A30);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--glow);
}
.logo-text{font-weight:800;font-size:1.02rem;color:#fff;line-height:1.15;display:flex;flex-direction:column;letter-spacing:.2px}
.logo-text small{font-weight:500;font-size:.66rem;color:var(--accent);letter-spacing:.6px}
.main-nav{display:flex;gap:6px;margin-left:auto}
.main-nav a{
  color:var(--text-dim);font-weight:600;font-size:.93rem;padding:8px 14px;border-radius:20px;
  position:relative;transition:all .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(0,240,255,.08)}
.main-nav a.active{
  color:var(--accent);background:rgba(0,240,255,.1);
}
.main-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-lime));border-radius:2px;
}
.auth-box{display:flex;align-items:center;gap:12px}
.btn-login{color:#fff;font-weight:600;font-size:.9rem;padding:8px 12px}
.btn-login:hover{color:var(--accent)}
.btn-signup{
  background:linear-gradient(135deg,var(--accent),#00b8d9);
  color:#04121f;font-weight:800;font-size:.9rem;padding:10px 20px;border-radius:24px;
  box-shadow:var(--glow);transition:transform .2s ease,box-shadow .2s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(0,240,255,.55);color:#04121f}
.nav-toggle{display:none;color:#fff;font-size:1.5rem;padding:6px 10px;border-radius:8px;border:1px solid var(--line)}

/* ===== BREADCRUMB ===== */
.breadcrumb{padding:92px 0 0;font-size:.85rem;color:var(--text-dim)}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:var(--accent)}

/* ===== HERO ===== */
.hero{padding:26px 0 64px;position:relative}
.hero-panel{
  display:grid;grid-template-columns:1.25fr .95fr;gap:0;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:linear-gradient(120deg,rgba(15,12,32,.94),rgba(11,26,48,.88)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
}
.hero-main{padding:52px 48px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;letter-spacing:1px;
  color:var(--accent-lime);border:1px solid rgba(204,255,0,.35);padding:6px 14px;border-radius:20px;
  background:rgba(204,255,0,.07);margin-bottom:18px;
}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-lime);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(204,255,0,.5)}50%{opacity:.55;box-shadow:0 0 0 6px rgba(204,255,0,0)}}
.hero h1{
  font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:900;line-height:1.22;margin-bottom:16px;
  background:linear-gradient(92deg,#fff 30%,var(--accent) 75%,var(--accent-lime));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-lead{color:var(--text-dim);font-size:1.02rem;max-width:520px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:26px}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--accent-lime),#8fd400);color:#0c1400;
  font-weight:800;font-size:1rem;padding:14px 30px;border-radius:30px;
  box-shadow:0 0 22px rgba(204,255,0,.35);transition:transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 32px rgba(204,255,0,.55);color:#0c1400}
.btn-primary:active{transform:translateY(0) scale(.97)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:700;font-size:.95rem;
  padding:13px 26px;border-radius:30px;border:1px solid var(--line);transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(0,240,255,.08);border-color:var(--accent)}
.hero-notes{display:flex;flex-wrap:wrap;gap:18px}
.hero-notes li{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-dim)}
.hero-notes li i{color:var(--accent)}

/* faux leaderboard */
.hero-board{
  background:rgba(8,14,26,.72);border-left:1px solid var(--line);padding:34px 30px;
  display:flex;flex-direction:column;
}
.board-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.board-head h3{font-size:.95rem;font-weight:800;color:#fff;letter-spacing:.4px}
.board-head span{font-size:.72rem;color:var(--accent-lime);font-weight:700;display:flex;align-items:center;gap:6px}
.board-list{display:flex;flex-direction:column;gap:10px}
.board-row{
  display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:10px;
  background:rgba(0,240,255,.05);border:1px solid rgba(0,240,255,.1);font-size:.86rem;
}
.board-row .rank{
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.75rem;background:rgba(0,240,255,.15);color:var(--accent);flex-shrink:0;
}
.board-row:first-child .rank{background:linear-gradient(135deg,#FFD700,#ff9f00);color:#3a2600}
.board-row .who{color:#fff;font-weight:600}
.board-row .game{color:var(--text-dim);font-size:.76rem}
.board-row .win{margin-left:auto;color:var(--accent-lime);font-weight:800;white-space:nowrap}
.board-total{
  margin-top:auto;padding-top:18px;border-top:1px dashed var(--line);
  display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-dim);
}
.board-total strong{color:var(--accent);font-size:1.15rem;font-weight:900}

/* ===== SECTION BASE ===== */
.section{padding:64px 0}
.section-head{max-width:640px;margin-bottom:38px}
.section-head .kicker{
  font-size:.75rem;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:10px;display:block;
}
.section-head h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--text-dim);font-size:.98rem}

/* ===== FEATURES ===== */
.feature-wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.feature-img{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.feature-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-img:hover img{transform:scale(1.04)}
.feature-img .float-chip{
  position:absolute;bottom:16px;left:16px;background:rgba(8,14,26,.85);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:10px;padding:10px 16px;font-size:.8rem;color:#fff;
}
.feature-img .float-chip strong{color:var(--accent-lime)}
.feature-list{display:flex;flex-direction:column;gap:24px}
.feature-item{display:flex;gap:16px}
.feature-item .ico{
  width:48px;height:48px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;background:rgba(0,240,255,.1);border:1px solid var(--line);color:var(--accent);
}
.feature-item h3{font-size:1.05rem;font-weight:700;margin-bottom:5px}
.feature-item p{color:var(--text-dim);font-size:.92rem}

/* ===== GAME GRID ===== */
.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.game-card{
  background:var(--bg-card);border:1px solid rgba(0,240,255,.12);border-radius:var(--radius);
  overflow:hidden;position:relative;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.game-card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 0 24px rgba(0,240,255,.28);border-color:var(--accent)}
.game-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.game-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.game-card:hover .game-thumb img{transform:scale(1.08)}
.game-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,26,48,.9))}
.game-tag{
  position:absolute;top:10px;left:10px;z-index:2;font-size:.66rem;font-weight:800;letter-spacing:.8px;
  padding:4px 10px;border-radius:12px;background:var(--hot);color:#fff;box-shadow:0 0 10px rgba(255,61,113,.5);
}
.game-tag.new{background:var(--accent-lime);color:#111a00;box-shadow:0 0 10px rgba(204,255,0,.5)}
.game-body{padding:14px 16px 18px}
.game-body h3{font-size:.98rem;font-weight:700;margin-bottom:6px}
.game-meta{display:flex;justify-content:space-between;align-items:center;font-size:.76rem;color:var(--text-dim);margin-bottom:12px}
.game-meta b{color:var(--accent)}
.btn-play{
  display:block;text-align:center;font-weight:800;font-size:.85rem;padding:9px 0;border-radius:20px;
  background:rgba(0,240,255,.12);color:var(--accent);border:1px solid var(--line);transition:all .2s ease;
}
.btn-play:hover{background:linear-gradient(135deg,var(--accent),#00b8d9);color:#04121f;box-shadow:var(--glow)}

/* ===== TIMELINE / STEPS ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;counter-reset:step}
.step{
  position:relative;padding:0 26px 0 0;
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:2.4rem;font-weight:900;color:transparent;-webkit-text-stroke:1.5px rgba(0,240,255,.5);
  display:block;margin-bottom:10px;line-height:1;
}
.step::after{
  content:"";position:absolute;top:18px;right:10px;width:calc(100% - 70px);height:1px;
  background:linear-gradient(90deg,var(--line),transparent);
}
.step:last-child::after{display:none}
.step h3{font-size:1rem;font-weight:700;margin-bottom:8px}
.step p{color:var(--text-dim);font-size:.88rem}

/* ===== ROOM TIERS ===== */
.tier-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tier{
  border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;position:relative;
  background:linear-gradient(160deg,rgba(18,38,66,.9),rgba(11,26,48,.85));transition:transform .25s ease,box-shadow .25s ease;
}
.tier:hover{transform:translateY(-5px);box-shadow:var(--glow)}
.tier.featured{border-color:var(--accent-lime);box-shadow:0 0 22px rgba(204,255,0,.2)}
.tier .tier-badge{
  position:absolute;top:-12px;right:20px;font-size:.68rem;font-weight:800;letter-spacing:1px;
  background:var(--accent-lime);color:#111a00;padding:4px 12px;border-radius:12px;
}
.tier h3{font-size:1.1rem;font-weight:800;margin-bottom:4px}
.tier .tier-sub{font-size:.8rem;color:var(--text-dim);margin-bottom:16px}
.tier .price{font-size:1.7rem;font-weight:900;color:var(--accent);margin-bottom:4px}
.tier .price small{font-size:.75rem;color:var(--text-dim);font-weight:500}
.tier ul{margin:18px 0 24px;display:flex;flex-direction:column;gap:10px}
.tier ul li{display:flex;gap:10px;font-size:.88rem;color:var(--text-dim);align-items:flex-start}
.tier ul li i{color:var(--accent-lime);margin-top:3px;font-size:.8rem}
.tier .btn-play{padding:11px 0;font-size:.9rem}
.tier.featured .btn-play{background:linear-gradient(135deg,var(--accent-lime),#8fd400);color:#111a00;border-color:transparent}
.tier.featured .btn-play:hover{box-shadow:0 0 20px rgba(204,255,0,.5)}

/* ===== STATS STRIP ===== */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.stat{background:rgba(8,14,26,.85);padding:28px 20px;text-align:left}
.stat b{display:block;font-size:1.7rem;font-weight:900;color:var(--accent-lime);margin-bottom:4px}
.stat span{font-size:.84rem;color:var(--text-dim)}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 32px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;background:rgba(18,38,66,.5)}
.faq-item summary{
  padding:16px 20px;font-weight:700;font-size:.95rem;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:14px;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--accent);font-weight:400;transition:transform .25s ease}
.faq-item[open] summary{color:var(--accent)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 20px 18px;color:var(--text-dim);font-size:.9rem}

/* ===== CTA ===== */
.cta-final{
  text-align:center;border-radius:20px;padding:64px 32px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(15,12,32,.92),rgba(11,26,48,.85)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.cta-final h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:900;margin-bottom:14px}
.cta-final h2 span{color:var(--accent-lime)}
.cta-final p{color:var(--text-dim);max-width:560px;margin:0 auto 28px;font-size:1rem}
.cta-btns{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

/* ===== FOOTER ===== */
.site-footer{border-top:1px solid var(--line);background:rgba(8,12,22,.92);padding:56px 0 24px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.footer-brand p{color:var(--text-dim);font-size:.88rem;margin-top:16px;max-width:320px}
.footer-col h4{font-size:.92rem;font-weight:800;margin-bottom:16px;color:#fff;letter-spacing:.5px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:var(--text-dim);font-size:.88rem}
.footer-col ul a:hover{color:var(--accent)}
.pay-badge{
  display:inline-block;font-size:.75rem;font-weight:700;color:var(--accent);
  border:1px solid var(--line);border-radius:8px;padding:6px 12px;margin:0 8px 8px 0;background:rgba(0,240,255,.06);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;
  align-items:center;gap:20px;flex-wrap:wrap;font-size:.8rem;color:var(--text-dim);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  border:2px solid var(--hot);color:var(--hot);font-weight:900;font-size:.85rem;flex-shrink:0;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:90;width:56px;height:56px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
  background:rgba(0,0,0,.6);backdrop-filter:blur(10px);color:var(--accent);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(6,10,20,.9),rgba(6,10,20,.9)),linear-gradient(135deg,var(--accent-lime),var(--accent));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 15px rgba(0,240,255,.5);opacity:.65;transition:all .25s ease;
}
.fab:hover{opacity:1;box-shadow:0 0 26px rgba(0,240,255,.75);transform:scale(1.06);color:var(--accent-lime)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{
  position:absolute;top:-4px;right:-4px;width:14px;height:14px;border-radius:50%;
  background:var(--hot);border:2px solid #06101c;animation:pulse 1.4s infinite;
}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .hero-panel{grid-template-columns:1fr}
  .hero-board{border-left:none;border-top:1px solid var(--line)}
  .game-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 20px}
  .step::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .main-nav{
    position:fixed;top:70px;left:0;right:0;background:rgba(8,12,22,.98);backdrop-filter:blur(14px);
    flex-direction:column;padding:18px 6%;gap:4px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .3s ease;margin-left:0;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:12px 14px;border-radius:10px}
  .main-nav a.active::after{left:14px;right:auto;width:26px}
  .nav-toggle{display:block}
  .auth-box{margin-left:auto}
  .btn-signup{padding:9px 16px;font-size:.84rem}
  .btn-login{padding:8px 6px;font-size:.84rem}
  .hero-main{padding:36px 26px}
  .feature-wrap{grid-template-columns:1fr;gap:30px}
  .game-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .tier-wrap{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .header-inner{gap:12px}
  .logo-text{font-size:.85rem}
  .logo-text small{font-size:.6rem}
  .section{padding:46px 0}
  .steps{grid-template-columns:1fr}
  .stats-strip{grid-template-columns:1fr 1fr}
  .stat b{font-size:1.4rem}
  .game-grid{grid-template-columns:1fr 1fr}
  .game-body{padding:10px 12px 14px}
  .game-body h3{font-size:.86rem}
  .hero-cta .btn-primary,.hero-cta .btn-ghost{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .board-row .game{display:none}
}

/* roulang page: category2 */
:root{
  --bg-deep:#0F0C20;
  --bg-ocean:#0B1A30;
  --bg-panel:#141232;
  --bg-card:#171a38;
  --lime:#CCFF00;
  --cyan:#00F0FF;
  --white:#FFFFFF;
  --gray:#A6ACAF;
  --gray-soft:#7d8598;
  --border:rgba(0,240,255,.18);
  --border-strong:rgba(0,240,255,.4);
  --radius:16px;
  --radius-sm:10px;
  --shadow-neon:0 0 18px rgba(0,240,255,.25);
  --shadow-lime:0 0 18px rgba(204,255,0,.25);
  --font:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg-deep);color:var(--white);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s}
a:hover{color:var(--lime)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(15,12,32,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:70px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{font-size:1.7rem;filter:drop-shadow(0 0 8px rgba(0,240,255,.6))}
.logo-text{font-weight:800;font-size:1.05rem;color:var(--white);line-height:1.15;display:flex;flex-direction:column}
.logo-text small{font-weight:500;font-size:.66rem;color:var(--cyan);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{color:var(--gray);font-weight:600;font-size:.92rem;padding:8px 14px;border-radius:999px;position:relative;transition:color .2s,background .2s}
.main-nav a:hover{color:var(--white);background:rgba(0,240,255,.08)}
.main-nav a.active{color:var(--lime)}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.auth-box{display:flex;align-items:center;gap:10px}
.btn-login{color:var(--white);font-weight:600;font-size:.9rem;padding:9px 14px;border-radius:999px;transition:color .2s}
.btn-login:hover{color:var(--cyan)}
.btn-signup{background:linear-gradient(135deg,var(--lime),#8ee000);color:#0F0C20;font-weight:800;font-size:.9rem;padding:10px 20px;border-radius:999px;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.45);color:#0F0C20}
.nav-toggle{display:none;color:var(--white);font-size:1.5rem;padding:4px 8px;border-radius:8px;border:1px solid var(--border)}

/* ===== Hero ===== */
.hero{position:relative;padding:150px 0 90px;background:linear-gradient(rgba(11,26,48,.82),rgba(15,12,32,.94)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 70% 20%,rgba(0,240,255,.14),transparent 55%),radial-gradient(ellipse at 15% 90%,rgba(204,255,0,.09),transparent 50%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;padding:6px 14px;border-radius:999px;border:1px solid var(--border-strong);color:var(--cyan);background:rgba(0,240,255,.07);letter-spacing:.03em}
.tag.lime{color:var(--lime);border-color:rgba(204,255,0,.4);background:rgba(204,255,0,.07)}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 8px var(--lime);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:2.5rem;line-height:1.22;font-weight:900;margin-bottom:16px}
.hero h1 .glow{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--gray);font-size:1.05rem;max-width:560px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--lime),#8ee000);color:#0F0C20;font-weight:800;font-size:1rem;padding:15px 30px;border-radius:999px;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 32px rgba(204,255,0,.5);color:#0F0C20}
.btn-primary:active{transform:translateY(0) scale(.97)}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;color:var(--cyan);font-weight:700;font-size:1rem;padding:15px 28px;border-radius:999px;border:1px solid var(--border-strong);background:rgba(0,240,255,.05);transition:background .2s,box-shadow .2s,transform .2s}
.btn-ghost:hover{background:rgba(0,240,255,.12);box-shadow:var(--shadow-neon);transform:translateY(-3px);color:var(--cyan)}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.stat b{display:block;font-size:1.5rem;font-weight:900;color:var(--lime)}
.stat span{font-size:.82rem;color:var(--gray)}
.hero-panel{position:relative;background:rgba(20,18,50,.75);border:1px solid var(--border);border-radius:var(--radius);padding:26px;backdrop-filter:blur(8px);box-shadow:var(--shadow-neon)}
.hero-panel h3{font-size:1.02rem;font-weight:800;margin-bottom:16px;color:var(--white)}
.hero-panel h3 span{color:var(--cyan)}
.dl-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;background:rgba(11,26,48,.5);transition:border-color .2s,box-shadow .2s}
.dl-row:hover{border-color:var(--border-strong);box-shadow:0 0 12px rgba(0,240,255,.2)}
.dl-row .os{display:flex;align-items:center;gap:11px;font-weight:700;font-size:.95rem}
.dl-row .os i{font-size:1.3rem;color:var(--cyan);width:26px;text-align:center}
.dl-row .size{font-size:.76rem;color:var(--gray-soft);display:block;font-weight:400}
.dl-row .btn-mini{background:rgba(0,240,255,.12);color:var(--cyan);border:1px solid var(--border-strong);font-weight:700;font-size:.8rem;padding:8px 16px;border-radius:999px;white-space:nowrap;transition:background .2s,color .2s}
.dl-row .btn-mini:hover{background:var(--cyan);color:#0B1A30}
.panel-note{font-size:.78rem;color:var(--gray-soft);display:flex;align-items:center;gap:8px;margin-top:4px}
.panel-note i{color:var(--lime)}

/* ===== Sections ===== */
.section{padding:80px 0}
.section-alt{background:var(--bg-ocean)}
.sec-head{max-width:680px;margin-bottom:44px}
.sec-kicker{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.sec-head h2{font-size:2rem;font-weight:900;line-height:1.25;margin-bottom:12px}
.sec-head p{color:var(--gray);font-size:1rem}

/* Timeline steps */
.timeline{position:relative;display:grid;gap:0;max-width:860px}
.step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:44px}
.step::before{content:"";position:absolute;left:31px;top:64px;bottom:0;width:2px;background:linear-gradient(180deg,var(--border-strong),transparent)}
.step:last-child::before{display:none}
.step-num{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.25rem;color:#0F0C20;background:linear-gradient(135deg,var(--cyan),var(--lime));box-shadow:var(--shadow-neon);flex-shrink:0}
.step-body h3{font-size:1.18rem;font-weight:800;margin-bottom:8px}
.step-body p{color:var(--gray);font-size:.96rem;max-width:620px}
.step-body .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{font-size:.76rem;font-weight:700;color:var(--lime);border:1px solid rgba(204,255,0,.35);background:rgba(204,255,0,.06);padding:5px 12px;border-radius:999px}

/* Highlights split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-neon)}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.split-media:hover img{transform:scale(1.04)}
.split-media .media-tag{position:absolute;top:16px;left:16px;background:rgba(15,12,32,.85);border:1px solid var(--border-strong);color:var(--cyan);font-size:.76rem;font-weight:800;padding:7px 14px;border-radius:999px;backdrop-filter:blur(6px)}
.split-body h2{font-size:1.8rem;font-weight:900;margin-bottom:14px;line-height:1.28}
.split-body>p{color:var(--gray);margin-bottom:22px}
.feature-list li{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid rgba(0,240,255,.1)}
.feature-list li:last-child{border-bottom:none}
.feature-list i{color:var(--lime);font-size:1.05rem;margin-top:4px;width:22px;text-align:center;flex-shrink:0}
.feature-list b{display:block;font-size:.98rem;margin-bottom:2px}
.feature-list span{color:var(--gray);font-size:.88rem}

/* Compare table */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}
.compare{width:100%;border-collapse:collapse;min-width:640px;background:var(--bg-panel)}
.compare th,.compare td{padding:16px 18px;text-align:left;font-size:.92rem;border-bottom:1px solid rgba(0,240,255,.1)}
.compare thead th{background:rgba(0,240,255,.07);font-weight:800;font-size:.95rem;color:var(--white)}
.compare thead th.hot{color:var(--lime);position:relative}
.compare tbody td{color:var(--gray)}
.compare tbody td:first-child{color:var(--white);font-weight:600}
.compare tbody tr:hover td{background:rgba(0,240,255,.04)}
.compare .yes{color:var(--lime);font-weight:700}
.compare .rec{display:inline-block;font-size:.66rem;font-weight:800;background:var(--lime);color:#0F0C20;padding:3px 9px;border-radius:999px;margin-left:8px;vertical-align:middle}

/* Fix errors cards */
.fix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.fix-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}
.fix-item:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow-neon)}
.fix-item .ic{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--cyan);background:rgba(0,240,255,.1);border:1px solid var(--border);margin-bottom:16px}
.fix-item h3{font-size:1.05rem;font-weight:800;margin-bottom:8px}
.fix-item p{color:var(--gray);font-size:.9rem}

/* Gallery duo */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:36px}
.duo figure{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.duo img{width:100%;height:260px;object-fit:cover;transition:transform .5s}
.duo figure:hover img{transform:scale(1.05)}
.duo figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 14px;font-size:.86rem;font-weight:700;background:linear-gradient(180deg,transparent,rgba(15,12,32,.94))}

/* FAQ */
.faq-list{max-width:800px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:14px;background:var(--bg-panel);overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:var(--border-strong);box-shadow:var(--shadow-neon)}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-weight:700;font-size:.98rem;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--cyan);font-weight:400;transition:transform .25s}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--lime)}
.faq-item .faq-a{padding:0 22px 20px;color:var(--gray);font-size:.93rem}

/* CTA */
.cta{position:relative;padding:90px 0;background:linear-gradient(rgba(15,12,32,.88),rgba(11,26,48,.92)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;text-align:center;overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(0,240,255,.15),transparent 60%);pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:660px;margin:0 auto}
.cta h2{font-size:2.1rem;font-weight:900;margin-bottom:14px}
.cta p{color:var(--gray);margin-bottom:28px;font-size:1.02rem}
.cta .btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta-pay{display:flex;justify-content:center;gap:10px;margin-top:26px;flex-wrap:wrap}

/* Footer */
.site-footer{background:#0a0818;border-top:1px solid var(--border);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand p{color:var(--gray);font-size:.88rem;margin-top:16px;max-width:340px}
.footer-col h4{font-size:.95rem;font-weight:800;margin-bottom:16px;color:var(--white)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--gray);font-size:.88rem}
.footer-col ul a:hover{color:var(--cyan)}
.pay-badge{display:inline-block;font-size:.76rem;font-weight:700;color:var(--cyan);border:1px solid var(--border-strong);background:rgba(0,240,255,.06);padding:6px 13px;border-radius:999px;margin:0 8px 10px 0}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:22px 0;border-top:1px solid rgba(0,240,255,.1);color:var(--gray-soft);font-size:.8rem}
.age-badge{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;border:2px solid var(--lime);color:var(--lime);font-weight:900;font-size:.85rem;flex-shrink:0}

/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:90;display:flex;align-items:center;gap:10px;padding:13px 18px;min-width:48px;min-height:48px;border-radius:999px;background:rgba(0,0,0,.6);backdrop-filter:blur(10px);border:2px solid transparent;background-image:linear-gradient(rgba(10,8,24,.85),rgba(10,8,24,.85)),linear-gradient(135deg,var(--lime),var(--cyan));background-origin:border-box;background-clip:padding-box,border-box;box-shadow:0 0 15px rgba(0,240,255,.5);color:var(--white);font-weight:800;font-size:.85rem;opacity:.75;transition:opacity .25s,box-shadow .25s,transform .2s;animation:fabBreath 3s infinite}
.fab i{color:var(--cyan);font-size:1.15rem;filter:drop-shadow(0 0 6px rgba(0,240,255,.8))}
.fab:hover{opacity:1;box-shadow:0 0 28px rgba(0,240,255,.75);transform:translateY(-2px);color:var(--white)}
.fab:active{transform:scale(.95)}
.fab .fab-new{position:absolute;top:-6px;right:-4px;font-size:.58rem;font-weight:900;background:var(--lime);color:#0F0C20;padding:2px 7px;border-radius:999px;animation:pulse 1.4s infinite}
@keyframes fabBreath{0%,100%{opacity:.75}50%{opacity:.55}}

/* Responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:2.1rem}
  .split{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav{position:fixed;top:70px;left:0;right:0;background:rgba(15,12,32,.98);border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:14px 20px;gap:4px;display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:10px}
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:rgba(204,255,0,.08)}
  .nav-toggle{display:block}
  .btn-login{padding:8px 8px;font-size:.82rem}
  .btn-signup{padding:9px 14px;font-size:.82rem}
  .fix-grid{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr}
  .section{padding:60px 0}
  .sec-head h2{font-size:1.6rem}
  .cta h2{font-size:1.6rem}
}
@media (max-width:520px){
  .hero{padding:120px 0 64px}
  .hero h1{font-size:1.72rem}
  .hero-stats{gap:20px}
  .step{grid-template-columns:48px 1fr;gap:16px}
  .step-num{width:48px;height:48px;font-size:1rem}
  .step::before{left:23px;top:48px}
  .footer-grid{grid-template-columns:1fr}
  .logo-text{font-size:.92rem}
  .btn-primary,.btn-ghost{width:100%;justify-content:center}
  .cta .btns{flex-direction:column}
}

/* roulang page: category3 */
:root{
  --bg-deep:#071a2e;
  --bg-panel:#0b2540;
  --bg-panel-2:#0e2f52;
  --line:#1c4a75;
  --cyan:#00e5ff;
  --lime:#9dff3f;
  --gold:#ffd447;
  --red:#ff4d6d;
  --text:#f2fbff;
  --text-dim:#9fc3d9;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 34px rgba(0,0,0,.42);
  --glow-cyan:0 0 18px rgba(0,229,255,.35);
  --font:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg-deep);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:#7df3ff}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}
.container{width:min(1160px,92%);margin:0 auto}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(7,22,40,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text)}
.logo-mark{
  font-size:26px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 30% 30%, #12406b, #0a2richard 90%);
  background:radial-gradient(circle at 30% 30%, #12406b, #0a2543 90%);
  border:1px solid var(--cyan);border-radius:12px;box-shadow:var(--glow-cyan);
}
.logo-text{font-weight:800;font-size:17px;letter-spacing:.2px;display:flex;flex-direction:column;line-height:1.2;color:var(--text)}
.logo-text small{font-weight:500;font-size:11px;color:var(--text-dim);letter-spacing:.4px}
.main-nav{display:flex;gap:6px;margin-left:auto}
.main-nav a{
  color:var(--text-dim);font-weight:600;font-size:14.5px;padding:9px 14px;border-radius:999px;
  position:relative;transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--text);background:rgba(0,229,255,.08)}
.main-nav a.active{color:var(--cyan)}
.main-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--lime));border-radius:2px;
}
.auth-box{display:flex;align-items:center;gap:10px}
.btn-login{color:var(--text);font-weight:600;font-size:14px;padding:9px 12px;border-radius:10px}
.btn-login:hover{color:var(--cyan)}
.btn-signup{
  background:linear-gradient(135deg,var(--cyan),#38a3ff);
  color:#04263c;font-weight:800;font-size:14px;padding:10px 20px;border-radius:12px;
  box-shadow:var(--glow-cyan);transition:transform .18s ease,box-shadow .18s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(0,229,255,.55);color:#04263c}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line);color:var(--text);
  font-size:20px;width:42px;height:42px;border-radius:10px;
}
.nav-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- Hero: coupon wall ---------- */
.hero{
  padding:140px 0 70px;position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(7,22,40,.86) 0%,rgba(7,26,46,.95) 70%,var(--bg-deep) 100%),
    url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 300px at 80% 10%,rgba(0,229,255,.12),transparent 70%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--lime);border:1px solid rgba(157,255,63,.4);
  padding:6px 14px;border-radius:999px;background:rgba(157,255,63,.08);margin-bottom:18px;
}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(157,255,63,.5)}50%{opacity:.55;box-shadow:0 0 0 6px rgba(157,255,63,0)}}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.18;font-weight:900;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--gold);text-shadow:0 0 24px rgba(255,212,71,.35)}
.hero-sub{color:var(--text-dim);font-size:17px;max-width:540px;margin-bottom:26px}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--gold),#ffb02e);color:#3a2600;
  font-weight:900;font-size:16px;padding:15px 30px;border-radius:14px;border:none;
  box-shadow:0 8px 26px rgba(255,176,46,.35);transition:transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(255,176,46,.5);color:#3a2600}
.btn-primary:active{transform:translateY(0) scale(.97)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:700;font-size:15px;
  padding:14px 24px;border-radius:14px;border:1px solid rgba(0,229,255,.45);background:rgba(0,229,255,.06);
  transition:background .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:rgba(0,229,255,.14);box-shadow:var(--glow-cyan)}
.hero-note{margin-top:14px;font-size:13px;color:var(--text-dim)}

/* Coupon wall */
.coupon-wall{display:flex;flex-direction:column;gap:14px}
.coupon-main{
  position:relative;background:linear-gradient(135deg,#123a63,#0d2a4a);
  border:1px solid var(--gold);border-radius:var(--radius);
  padding:26px 26px 22px;box-shadow:0 0 0 1px rgba(255,212,71,.15),var(--shadow);
  overflow:hidden;
}
.coupon-main::before,.coupon-main::after{
  content:"";position:absolute;width:26px;height:26px;border-radius:50%;
  background:var(--bg-deep);top:50%;transform:translateY(-50%);
  border:1px solid var(--gold);
}
.coupon-main::before{left:-13px}
.coupon-main::after{right:-13px}
.coupon-tag{
  position:absolute;top:14px;right:16px;background:var(--red);color:#fff;font-size:11px;font-weight:800;
  letter-spacing:1px;padding:4px 10px;border-radius:6px;animation:blink 2s infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.6}}
.coupon-kicker{font-size:12px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--cyan);margin-bottom:8px}
.coupon-value{font-size:clamp(30px,3.4vw,42px);font-weight:900;color:var(--gold);line-height:1.1}
.coupon-desc{color:var(--text-dim);font-size:14px;margin:8px 0 16px;border-top:1px dashed rgba(255,212,71,.35);padding-top:12px}
.coupon-claim{
  width:100%;background:linear-gradient(135deg,var(--lime),#5ee23a);color:#0c2c05;
  font-weight:900;font-size:16px;padding:13px 0;border:none;border-radius:12px;
  transition:transform .16s ease,box-shadow .16s ease;box-shadow:0 6px 20px rgba(94,226,58,.3);
}
.coupon-claim:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(94,226,58,.45)}
.coupon-claim:active{transform:scale(.97)}
.coupon-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.coupon-mini{
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;transition:border-color .2s ease,transform .2s ease;
}
.coupon-mini:hover{border-color:var(--cyan);transform:translateY(-3px)}
.coupon-mini strong{display:block;font-size:19px;color:var(--cyan);margin-bottom:2px}
.coupon-mini span{font-size:13px;color:var(--text-dim)}

/* ---------- Section base ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-panel)}
.section-head{max-width:640px;margin-bottom:40px}
.section-kicker{font-size:12.5px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:900;line-height:1.25;margin-bottom:12px}
.section-head p{color:var(--text-dim);font-size:16px}

/* ---------- Boss schedule timeline ---------- */
.timeline{position:relative;padding-left:34px;max-width:760px}
.timeline::before{
  content:"";position:absolute;left:10px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--cyan),var(--lime));border-radius:2px;opacity:.6;
}
.tl-item{position:relative;padding:0 0 34px 18px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:5px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-deep);border:3px solid var(--cyan);box-shadow:0 0 12px rgba(0,229,255,.5);
}
.tl-time{
  display:inline-block;font-size:12.5px;font-weight:800;color:#062a1a;background:var(--lime);
  padding:3px 12px;border-radius:999px;margin-bottom:8px;letter-spacing:.4px;
}
.tl-item h3{font-size:19px;font-weight:800;margin-bottom:6px}
.tl-item h3 span{color:var(--gold)}
.tl-item p{color:var(--text-dim);font-size:15px;max-width:600px}

/* ---------- Boss cards ---------- */
.boss-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.boss-card{
  background:var(--bg-panel-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.boss-card:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:var(--glow-cyan),var(--shadow)}
.boss-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.boss-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.boss-card:hover .boss-media img{transform:scale(1.06)}
.boss-badge{
  position:absolute;top:12px;left:12px;background:var(--red);color:#fff;font-size:11px;font-weight:800;
  letter-spacing:1px;padding:4px 10px;border-radius:6px;
}
.boss-badge.gold{background:var(--gold);color:#3a2600}
.boss-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.boss-body h3{font-size:19px;font-weight:800}
.boss-body p{color:var(--text-dim);font-size:14.5px;flex:1}
.boss-meta{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  font-size:12px;font-weight:700;color:var(--cyan);background:rgba(0,229,255,.09);
  border:1px solid rgba(0,229,255,.3);padding:4px 12px;border-radius:999px;
}
.chip.warm{color:var(--gold);background:rgba(255,212,71,.08);border-color:rgba(255,212,71,.35)}

/* ---------- Tips split ---------- */
.tips-split{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.tips-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.tips-media img{width:100%;height:100%;object-fit:cover}
.tips-media .float-stat{
  position:absolute;left:16px;bottom:16px;background:rgba(7,22,40,.88);backdrop-filter:blur(6px);
  border:1px solid rgba(0,229,255,.4);border-radius:12px;padding:12px 18px;
}
.float-stat strong{display:block;font-size:22px;color:var(--lime);font-weight:900}
.float-stat span{font-size:12.5px;color:var(--text-dim)}
.tip-list{display:flex;flex-direction:column;gap:20px;margin-top:26px}
.tip-item{display:flex;gap:16px;align-items:flex-start}
.tip-num{
  flex-shrink:0;width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;color:#04263c;background:linear-gradient(135deg,var(--cyan),#38a3ff);
  box-shadow:var(--glow-cyan);
}
.tip-item h3{font-size:17px;font-weight:800;margin-bottom:4px}
.tip-item p{color:var(--text-dim);font-size:14.5px}

/* ---------- Cannon compare table ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-panel-2)}
.compare{width:100%;border-collapse:collapse;min-width:680px}
.compare th,.compare td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.compare thead th{
  background:rgba(0,229,255,.07);color:var(--cyan);font-size:13px;letter-spacing:1px;text-transform:uppercase;font-weight:800;
}
.compare tbody tr:last-child td{border-bottom:none}
.compare tbody tr{transition:background .2s ease}
.compare tbody tr:hover{background:rgba(0,229,255,.05)}
.compare td strong{color:var(--text)}
.compare .best{position:relative}
.compare .best td:first-child::before{content:"★ ";color:var(--gold)}
.tag-hot{background:var(--red);color:#fff;font-size:11px;font-weight:800;padding:3px 8px;border-radius:5px;margin-left:8px}
.compare-note{margin-top:14px;font-size:13.5px;color:var(--text-dim)}

/* ---------- FAQ ---------- */
.faq-list{max-width:780px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--cyan)}
.faq-item summary{
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:18px 22px;font-weight:700;font-size:16px;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--cyan);font-weight:800;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--cyan)}
.faq-body{padding:0 22px 20px;color:var(--text-dim);font-size:15px}

/* ---------- CTA ---------- */
.cta{
  position:relative;text-align:center;padding:84px 0;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(7,26,46,.9),rgba(7,22,40,.94)),
    url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 260px at 50% 0%,rgba(255,212,71,.14),transparent 70%);
}
.cta-inner{position:relative;z-index:2;max-width:680px;margin:0 auto}
.cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;margin-bottom:14px}
.cta h2 em{font-style:normal;color:var(--gold)}
.cta p{color:var(--text-dim);font-size:16.5px;margin-bottom:28px}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.pay-strip{display:flex;justify-content:center;gap:10px;margin-top:26px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:#051424;border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand p{color:var(--text-dim);font-size:14px;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--text-dim);font-size:14.5px}
.footer-col ul a:hover{color:var(--cyan)}
.pay-badge{
  display:inline-block;background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.3);
  color:var(--cyan);font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:8px;margin:0 8px 10px 0;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;display:flex;justify-content:space-between;
  align-items:center;gap:18px;flex-wrap:wrap;color:var(--text-dim);font-size:13px;
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;
  border:2px solid var(--red);color:var(--red);font-weight:900;font-size:14px;flex-shrink:0;
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:110;
  display:flex;align-items:center;gap:10px;
  background:rgba(5,20,36,.65);backdrop-filter:blur(10px);
  border:2px solid transparent;border-radius:999px;padding:12px 18px;min-height:50px;
  background-clip:padding-box;color:var(--text);font-weight:800;font-size:14px;
  box-shadow:0 0 15px rgba(0,240,255,.45);opacity:.7;
  transition:opacity .2s ease,box-shadow .25s ease,transform .18s ease;
}
.fab::before{
  content:"";position:absolute;inset:-2px;border-radius:999px;z-index:-1;
  background:linear-gradient(120deg,var(--lime),var(--cyan),var(--lime));
  background-size:200% 200%;animation:borderflow 4s linear infinite;
}
@keyframes borderflow{0%{background-position:0% 50%}100%{background-position:200% 50%}}
.fab:hover{opacity:1;box-shadow:0 0 28px rgba(0,240,255,.7);color:var(--text)}
.fab:active{transform:scale(.95)}
.fab .fab-ico{font-size:20px;filter:drop-shadow(0 0 6px rgba(0,229,255,.8))}
.fab .fab-dot{
  position:absolute;top:2px;right:6px;width:10px;height:10px;border-radius:50%;
  background:var(--red);animation:blink 1.4s infinite;
}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .boss-grid{grid-template-columns:repeat(2,1fr)}
  .tips-split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .main-nav{
    display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(5,20,36,.98);border-bottom:1px solid var(--line);padding:10px 5% 18px;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:14px 12px;border-radius:10px;font-size:16px}
  .main-nav a.active::after{left:12px;right:auto;width:34px}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .btn-login{padding:8px 8px;font-size:13px}
  .btn-signup{padding:9px 14px;font-size:13px}
  .header-inner{gap:12px}
  .section{padding:56px 0}
}
@media(max-width:520px){
  .boss-grid{grid-template-columns:1fr}
  .coupon-row{grid-template-columns:1fr}
  .hero{padding:118px 0 54px}
  .hero-cta-row{flex-direction:column;align-items:stretch}
  .btn-primary,.btn-ghost{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .fab{bottom:84px;padding:11px 15px}
  .logo-text{font-size:15px}
}