/* roulang page: index */
:root{
  --bg:#0F0C20;--bg-2:#0B1A30;--panel:#151233;--panel-2:#0d1830;
  --lime:#CCFF00;--cyan:#00F0FF;--text:#FFFFFF;--muted:#A6ACAF;
  --border:rgba(0,240,255,.18);--radius:16px;--radius-sm:10px;
  --shadow:0 18px 40px rgba(0,0,0,.55);--shadow-neon:0 0 18px rgba(0,240,255,.35);
  --sp:clamp(2.5rem,6vw,5rem);
  --font:'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:.25s;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .6rem;font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 1rem;}
.wrap{max-width:1200px;margin:0 auto;padding:0 1.25rem;}
.eyebrow{display:inline-block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:.9rem;padding:.35rem .8rem;border:1px solid var(--border);border-radius:99px;background:rgba(0,240,255,.06);}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.6rem;border-radius:99px;font-weight:800;font-size:.95rem;border:0;transition:.25s;}
.btn-primary{background:linear-gradient(135deg,var(--lime),var(--cyan));color:#08121f;box-shadow:0 10px 26px rgba(0,240,255,.3);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(204,255,0,.4);}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:var(--shadow-neon);}
.tag{display:inline-block;font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;padding:.25rem .6rem;border-radius:6px;}
.tag-hot{background:#ff2d55;color:#fff;}
.tag-new{background:var(--lime);color:#0a1500;}
/* header */
.site-head{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,10,24,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);}
.nav{display:flex;align-items:center;gap:1.4rem;height:70px;}
.logo{display:flex;align-items:center;gap:.55rem;font-weight:900;font-size:1.02rem;letter-spacing:-.02em;}
.logo i{color:var(--lime);filter:drop-shadow(0 0 8px rgba(204,255,0,.7));}
.logo b{background:linear-gradient(90deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-links{display:flex;gap:.4rem;margin-left:1rem;flex:1;}
.nav-links a{font-size:.9rem;font-weight:600;color:var(--muted);padding:.5rem .85rem;border-radius:8px;}
.nav-links a:hover{color:#fff;background:rgba(0,240,255,.08);}
.nav-links a.active{color:var(--lime);position:relative;}
.nav-links a.active::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:.2rem;height:2px;background:var(--lime);box-shadow:0 0 8px var(--lime);border-radius:2px;}
.nav-auth{display:flex;align-items:center;gap:.7rem;}
.link-login{font-size:.9rem;font-weight:700;color:var(--muted);}
.link-login:hover{color:#fff;}
.btn-signup{padding:.6rem 1.25rem;font-size:.86rem;border-radius:99px;background:linear-gradient(135deg,var(--lime),var(--cyan));color:#08121f;font-weight:800;box-shadow:0 6px 16px rgba(0,240,255,.3);}
.btn-signup:hover{transform:translateY(-2px);}
.burger{display:none;background:none;border:1px solid var(--border);color:#fff;width:42px;height:42px;border-radius:10px;font-size:1.1rem;}
/* hero */
.hero{position:relative;padding:130px 0 var(--sp);background:linear-gradient(rgba(9,8,22,.86),rgba(11,26,48,.92)),url('/assets/images/backpic/back-1.jpg') center/cover fixed;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(0,240,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,240,255,.05) 1px,transparent 1px);background-size:44px 44px;opacity:.5;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:2.6rem;align-items:center;}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);}
.hero h1 span{background:linear-gradient(90deg,var(--lime),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{color:#d5dbe4;font-size:1.06rem;max-width:38rem;}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin:1.6rem 0 1.4rem;}
.hero-stats{display:flex;gap:1.6rem;flex-wrap:wrap;margin-top:1.2rem;}
.hero-stats .num{font-size:1.7rem;font-weight:900;color:var(--lime);}
.hero-stats small{color:var(--muted);font-size:.8rem;}
/* link panel */
.link-panel{background:rgba(10,15,32,.72);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow);}
.link-panel h3{font-size:1.05rem;display:flex;align-items:center;gap:.5rem;}
.link-panel h3 i{color:var(--cyan);}
.link-row{display:flex;align-items:center;justify-content:space-between;gap:.7rem;padding:.85rem .95rem;border-radius:var(--radius-sm);background:rgba(0,240,255,.05);border:1px solid var(--border);margin-top:.7rem;}
.link-row .info{display:flex;flex-direction:column;}
.link-row .info b{font-size:.94rem;}
.link-row .info em{font-style:normal;font-size:.75rem;color:var(--muted);}
.dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 8px var(--lime);animation:pulse 1.6s infinite;display:inline-block;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.link-row a.go{font-size:.8rem;font-weight:800;color:var(--cyan);border:1px solid var(--cyan);padding:.35rem .8rem;border-radius:99px;}
.link-row a.go:hover{background:var(--cyan);color:#08121f;}
/* section base */
section{position:relative;}
.sec{padding:var(--sp) 0;}
.sec-head{max-width:46rem;margin-bottom:2.2rem;}
.sec-head h2{font-size:clamp(1.5rem,3.4vw,2.2rem);}
.sec-head p{color:var(--muted);}
/* features */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;}
.feat{padding:1.5rem 1.3rem;border-radius:var(--radius);background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--border);transition:.3s;}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow-neon);border-color:var(--cyan);}
.feat i{font-size:1.5rem;color:var(--lime);margin-bottom:.7rem;}
.feat h3{font-size:1.02rem;}
.feat p{color:var(--muted);font-size:.9rem;margin:0;}
/* time slot */
.slot-wrap{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;}
.slot-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);position:relative;box-shadow:var(--shadow);}
.slot-media img{height:100%;object-fit:cover;min-height:320px;}
.slot-media .badge-abs{position:absolute;top:1rem;left:1rem;}
.slot-cards{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;}
.slot-card{padding:1rem;border-radius:var(--radius-sm);background:rgba(21,18,51,.7);border:1px solid var(--border);transition:.25s;}
.slot-card:hover{border-color:var(--lime);}
.slot-card .time{font-weight:900;font-size:1.2rem;color:var(--cyan);}
.slot-card small{color:var(--muted);font-size:.78rem;}
.slot-card .st{display:inline-block;margin-top:.5rem;font-size:.72rem;font-weight:700;color:var(--lime);}
/* games */
.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;}
.game{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--panel);transition:.3s;}
.game:hover{transform:scale(1.05);box-shadow:0 0 22px rgba(0,240,255,.4);z-index:2;}
.game img{aspect-ratio:4/3;object-fit:cover;}
.game .g-body{padding:.85rem;}
.game .g-body h4{font-size:.92rem;margin:0 0 .2rem;}
.game .g-body span{font-size:.76rem;color:var(--muted);}
.game .g-tag{position:absolute;top:.6rem;left:.6rem;}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;counter-reset:s;}
.step{padding:1.5rem 1.3rem;border-radius:var(--radius);background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--border);position:relative;}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-size:2rem;font-weight:900;color:var(--cyan);opacity:.35;display:block;margin-bottom:.4rem;}
.step h3{font-size:1rem;}
.step p{color:var(--muted);font-size:.88rem;margin:0;}
/* list section */
.news-wrap{display:grid;grid-template-columns:1.6fr .9fr;gap:2rem;}
.news-list{display:flex;flex-direction:column;gap:.2rem;}
.news-item{display:flex;gap:1rem;align-items:flex-start;padding:1.1rem 0;border-bottom:1px solid var(--border);transition:.2s;}
.news-item:hover{background:rgba(0,240,255,.04);border-radius:10px;padding-left:.6rem;}
.news-item .cal{flex:0 0 auto;text-align:center;width:60px;padding:.5rem;border-radius:10px;background:rgba(0,240,255,.07);border:1px solid var(--border);}
.news-item .cal b{display:block;font-size:1.3rem;color:var(--lime);line-height:1;}
.news-item .cal small{font-size:.68rem;color:var(--muted);}
.news-item .nc h4{font-size:1rem;margin:0 0 .3rem;}
.news-item:hover .nc h4{color:var(--cyan);}
.news-item .nc p{color:var(--muted);font-size:.86rem;margin:0;}
.news-item .cat{font-size:.7rem;color:var(--lime);font-weight:700;text-transform:uppercase;letter-spacing:.06em;}
.side-box{background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem;}
.side-box h3{font-size:1.05rem;}
.side-box ul{list-style:none;margin:0;padding:0;}
.side-box li{padding:.55rem 0;border-bottom:1px dashed var(--border);font-size:.88rem;color:var(--muted);display:flex;gap:.55rem;}
.side-box li i{color:var(--lime);margin-top:.2rem;}
.empty{color:var(--muted);padding:2rem;text-align:center;border:1px dashed var(--border);border-radius:var(--radius);}
/* faq */
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:.8rem;overflow:hidden;background:rgba(21,18,51,.5);}
.faq-q{width:100%;text-align:left;background:none;border:0;color:#fff;font-weight:700;font-size:1rem;padding:1.1rem 1.2rem;display:flex;justify-content:space-between;gap:1rem;align-items:center;}
.faq-q i{color:var(--cyan);transition:.3s;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:.35s;color:var(--muted);padding:0 1.2rem;}
.faq-item.open .faq-a{max-height:260px;padding:0 1.2rem 1.1rem;}
/* booking form */
.book{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:linear-gradient(rgba(9,8,22,.9),rgba(11,26,48,.94)),url('/assets/images/backpic/back-2.jpg') center/cover;padding:clamp(2rem,5vw,3.4rem);}
.book-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;}
.form-field{margin-bottom:1rem;}
.form-field label{display:block;font-size:.82rem;font-weight:700;margin-bottom:.4rem;color:#d5dbe4;}
.form-field input,.form-field select{width:100%;padding:.8rem 1rem;border-radius:10px;background:rgba(10,15,32,.7);border:1px solid var(--border);color:#fff;font-size:.92rem;}
.form-field input:focus,.form-field select:focus{outline:2px solid var(--cyan);border-color:var(--cyan);}
.pay-badges{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1rem;}
.pay-badge{font-size:.74rem;font-weight:700;padding:.4rem .8rem;border-radius:8px;border:1px solid var(--border);color:#d5dbe4;}
/* final cta */
.cta{text-align:center;padding:var(--sp) 1.25rem;background:linear-gradient(135deg,rgba(204,255,0,.08),rgba(0,240,255,.08));border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.cta h2{font-size:clamp(1.6rem,4vw,2.4rem);}
.cta p{color:var(--muted);max-width:40rem;margin:0 auto 1.6rem;}
/* footer */
footer{background:#080714;padding:var(--sp) 0 2rem;border-top:1px solid var(--border);}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;}
.foot-grid h4{font-size:.9rem;text-transform:uppercase;letter-spacing:.08em;color:var(--cyan);margin-bottom:1rem;}
.foot-grid a{display:block;color:var(--muted);font-size:.88rem;padding:.3rem 0;}
.foot-grid a:hover{color:var(--lime);}
.foot-brand p{color:var(--muted);font-size:.88rem;max-width:22rem;}
.age-badge{display:inline-flex;align-items:center;gap:.4rem;font-size:.78rem;font-weight:800;color:#ff2d55;border:1px solid #ff2d55;padding:.3rem .7rem;border-radius:8px;margin-top:.6rem;}
.foot-bottom{border-top:1px solid var(--border);margin-top:2rem;padding-top:1.4rem;color:var(--muted);font-size:.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem;}
/* FAB */
.fab{position:fixed;left:1rem;bottom:6rem;z-index:90;width:60px;height:60px;border-radius:50%;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);border:2px solid transparent;background-image:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)),linear-gradient(135deg,var(--lime),var(--cyan));background-origin:border-box;background-clip:padding-box,border-box;color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:1.35rem;box-shadow:0 0 15px rgba(0,240,255,.5);opacity:.72;transition:.3s;}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 26px rgba(204,255,0,.7);}
.fab .ndot{position:absolute;top:2px;right:2px;width:12px;height:12px;background:#ff2d55;border-radius:50%;animation:pulse 1.3s infinite;}
@media(max-width:1024px){
  .feat-grid,.game-grid,.steps{grid-template-columns:repeat(2,1fr);}
  .hero-grid{grid-template-columns:1fr;}
  .news-wrap,.slot-wrap,.book-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;background:rgba(11,10,24,.98);padding:1rem;border-bottom:1px solid var(--border);}
  .nav-links.open{display:flex;}
  .nav-links a{padding:.8rem;}
  .burger{display:inline-flex;align-items:center;justify-content:center;order:3;}
  .nav{gap:.7rem;}
}
@media(max-width:520px){
  .feat-grid,.game-grid,.steps,.slot-cards,.foot-grid{grid-template-columns:1fr;}
  .hero{padding-top:100px;}
  .link-login{display:none;}
}

/* roulang page: article */
:root{
  --bg:#0F0C20;
  --bg2:#0B1A30;
  --panel:#161231;
  --panel2:#1B1640;
  --lime:#CCFF00;
  --cyan:#00F0FF;
  --pink:#FF2E88;
  --text:#FFFFFF;
  --muted:#A6ACAF;
  --line:rgba(0,240,255,.18);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.35);
  --glow-lime:0 0 18px rgba(204,255,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  background-image:radial-gradient(circle at 15% 10%,rgba(0,240,255,.06),transparent 40%),radial-gradient(circle at 85% 80%,rgba(204,255,0,.05),transparent 40%),linear-gradient(160deg,var(--bg),var(--bg2));
  color:var(--text);
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--lime)}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
h1,h2,h3,h4{color:var(--text);font-family:'Be Vietnam Pro',sans-serif;line-height:1.3}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* ===== Header / Nav ===== */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(15,12,32,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 20px rgba(0,0,0,.5);
}
.site-head::after{content:"";display:block;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),var(--lime),transparent)}
.nav{display:flex;align-items:center;gap:1.4rem;height:64px}
.logo{display:flex;align-items:center;gap:.5rem;font-size:1.05rem;color:var(--text);letter-spacing:.5px;white-space:nowrap}
.logo i{color:var(--lime);font-size:1.25rem;filter:drop-shadow(0 0 6px rgba(204,255,0,.6))}
.logo b{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo:hover b{filter:brightness(1.15)}
.nav-links{display:flex;gap:.3rem;margin-left:.6rem;flex:1}
.nav-links a{
  color:var(--muted);font-weight:600;font-size:.92rem;
  padding:.45rem .85rem;border-radius:8px;position:relative;
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--text);background:rgba(0,240,255,.08)}
.nav-links a.active{color:var(--lime)}
.nav-links a.active::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:2px;height:2px;
  background:var(--lime);border-radius:2px;box-shadow:0 0 8px var(--lime);
}
.nav-auth{display:flex;align-items:center;gap:.7rem;margin-left:auto}
.link-login{color:var(--text);font-weight:600;font-size:.9rem;padding:.4rem .6rem}
.link-login:hover{color:var(--cyan)}
.btn-signup{
  background:linear-gradient(135deg,var(--lime),#9be000);
  color:#0F0C20;font-weight:800;font-size:.9rem;
  padding:.5rem 1.15rem;border-radius:999px;
  box-shadow:var(--glow-lime);transition:transform .2s,box-shadow .2s;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.55);color:#0F0C20}
.btn-signup:active{transform:translateY(0) scale(.97)}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--cyan);font-size:1.1rem;padding:.45rem .65rem;border-radius:8px}
.burger:hover{background:rgba(0,240,255,.1)}

/* ===== Article banner ===== */
.art-banner{
  margin-top:66px;
  background:linear-gradient(rgba(15,12,32,.82),rgba(11,26,48,.94)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding:3.2rem 0 2.6rem;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.85rem;color:var(--muted);margin-bottom:1.1rem}
.crumbs a{color:var(--cyan)}
.crumbs i{font-size:.65rem;color:var(--muted)}
.art-banner h1{
  font-size:2.1rem;font-weight:800;max-width:860px;margin:0 0 1rem;
  text-shadow:0 2px 18px rgba(0,0,0,.6);
}
.art-meta{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.meta-chip{
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.8rem;font-weight:600;color:var(--cyan);
  border:1px solid var(--line);border-radius:999px;
  padding:.3rem .85rem;background:rgba(0,240,255,.07);
}
.meta-chip.lime{color:var(--lime);border-color:rgba(204,255,0,.3);background:rgba(204,255,0,.07)}

/* ===== Layout ===== */
.page-body{padding:2.6rem 0 3.4rem}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:2.4rem;align-items:start}

/* ===== Article content ===== */
.art-content{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:2.2rem 2.4rem;
  box-shadow:var(--shadow);
}
.art-content h2{font-size:1.5rem;margin:2rem 0 .9rem;padding-left:.85rem;border-left:4px solid var(--lime)}
.art-content h3{font-size:1.2rem;margin:1.6rem 0 .7rem;color:var(--cyan)}
.art-content p{margin:0 0 1.05rem;color:#DDE3E6}
.art-content ul,.art-content ol{margin:0 0 1.1rem;padding-left:1.4rem;color:#DDE3E6}
.art-content li{margin-bottom:.45rem}
.art-content a{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.art-content a:hover{color:var(--cyan)}
.art-content img{border-radius:var(--radius-sm);margin:1.2rem 0;border:1px solid var(--line)}
.art-content blockquote{
  margin:1.4rem 0;padding:1rem 1.3rem;
  background:rgba(0,240,255,.06);border-left:4px solid var(--cyan);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#CFE9EE;
}
.art-content table{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:.92rem}
.art-content th,.art-content td{border:1px solid var(--line);padding:.6rem .8rem;text-align:left}
.art-content th{background:rgba(0,240,255,.08);color:var(--cyan)}

/* Not found */
.not-found{text-align:center;padding:3rem 1.5rem}
.not-found i{font-size:3rem;color:var(--pink);margin-bottom:1rem;display:inline-block}
.not-found h2{border:none;padding:0;font-size:1.5rem;margin:0 0 .7rem}
.not-found p{color:var(--muted)}
.btn-back{
  display:inline-flex;align-items:center;gap:.5rem;margin-top:1.2rem;
  background:linear-gradient(135deg,var(--cyan),#00b8d4);color:#06121f;
  font-weight:800;padding:.7rem 1.6rem;border-radius:999px;
  box-shadow:var(--glow);transition:transform .2s,box-shadow .2s;
}
.btn-back:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(0,240,255,.55);color:#06121f}

/* Share row */
.share-row{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  margin-top:2rem;padding-top:1.4rem;border-top:1px dashed var(--line);
}
.share-row .lbl{font-size:.85rem;color:var(--muted);font-weight:600}
.share-btns{display:flex;gap:.55rem}
.share-btns a{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--cyan);background:rgba(0,240,255,.06);
  transition:all .2s;
}
.share-btns a:hover{background:var(--cyan);color:#06121f;box-shadow:var(--glow);transform:translateY(-2px)}

/* ===== Sidebar ===== */
.sidebar{display:flex;flex-direction:column;gap:1.5rem;position:sticky;top:86px}
.side-box{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.side-box .head{
  padding:.9rem 1.2rem;font-weight:800;font-size:.95rem;color:var(--lime);
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:.5rem;
  background:rgba(204,255,0,.05);
}
.side-box .bd{padding:1.2rem}
.side-cta{
  background:linear-gradient(rgba(15,12,32,.7),rgba(15,12,32,.9)),url('/assets/images/coverpic/cover-5.jpg') center/cover no-repeat;
  text-align:center;padding:2rem 1.4rem;border-radius:var(--radius);
  border:1px solid rgba(204,255,0,.35);box-shadow:var(--glow-lime);
}
.side-cta .tag{
  display:inline-block;background:var(--pink);color:#fff;font-size:.72rem;font-weight:800;
  padding:.25rem .8rem;border-radius:999px;letter-spacing:.5px;margin-bottom:.8rem;
  animation:pulseTag 1.6s ease-in-out infinite;
}
@keyframes pulseTag{0%,100%{box-shadow:0 0 0 0 rgba(255,46,136,.6)}50%{box-shadow:0 0 0 8px rgba(255,46,136,0)}}
.side-cta h3{font-size:1.15rem;margin:0 0 .6rem}
.side-cta p{font-size:.88rem;color:#D8E4EA;margin:0 0 1.1rem}
.side-cta .btn-signup{display:inline-block;padding:.7rem 1.7rem;font-size:.95rem}
.hu-list{list-style:none;margin:0;padding:0}
.hu-list li{
  display:flex;justify-content:space-between;align-items:center;gap:.8rem;
  padding:.65rem 0;border-bottom:1px dashed rgba(0,240,255,.14);font-size:.88rem;
}
.hu-list li:last-child{border-bottom:none}
.hu-list .g{color:#E7ECEF;font-weight:600}
.hu-list .v{color:var(--lime);font-weight:800;white-space:nowrap}
.hu-list .v::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:#2ecc71;margin-right:.45rem;vertical-align:1px;animation:blinkDot 1.2s infinite}
@keyframes blinkDot{0%,100%{opacity:1}50%{opacity:.3}}
.cat-list{list-style:none;margin:0;padding:0}
.cat-list a{
  display:flex;align-items:center;gap:.6rem;padding:.65rem .4rem;
  color:#DDE3E6;font-weight:600;font-size:.9rem;border-radius:8px;transition:all .2s;
}
.cat-list a:hover{background:rgba(0,240,255,.08);color:var(--cyan);padding-left:.8rem}
.cat-list i{color:var(--lime);font-size:.8rem}
.pay-badges{display:flex;flex-wrap:wrap;gap:.5rem}
.pay-badges span{
  font-size:.78rem;font-weight:700;color:var(--cyan);
  border:1px solid var(--line);border-radius:8px;padding:.4rem .75rem;
  background:rgba(0,240,255,.06);display:inline-flex;align-items:center;gap:.4rem;
}

/* ===== Steps strip ===== */
.steps-sec{padding:0 0 2.8rem}
.sec-head{margin-bottom:1.6rem}
.sec-head .kicker{color:var(--cyan);font-size:.8rem;font-weight:800;letter-spacing:2px;text-transform:uppercase}
.sec-head h2{font-size:1.65rem;margin:.35rem 0 0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.step{
  background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem 1.3rem;position:relative;transition:transform .25s,box-shadow .25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--glow)}
.step .num{
  font-size:2rem;font-weight:800;line-height:1;
  background:linear-gradient(180deg,var(--cyan),var(--lime));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:.6rem;display:block;
}
.step h3{font-size:1rem;margin:0 0 .45rem}
.step p{font-size:.86rem;color:var(--muted);margin:0}

/* ===== FAQ ===== */
.faq-sec{padding:0 0 3rem}
.faq{max-width:820px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:.8rem;background:var(--panel);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:1rem 1.3rem;
  font-weight:700;font-size:.97rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  transition:background .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);font-size:.8rem;transition:transform .25s}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item summary:hover{background:rgba(0,240,255,.06)}
.faq-item[open]{border-color:rgba(204,255,0,.4)}
.faq-item .ans{padding:0 1.3rem 1.1rem;color:var(--muted);font-size:.92rem}

/* ===== Bottom CTA ===== */
.cta-band{
  background:linear-gradient(rgba(15,12,32,.85),rgba(11,26,48,.92)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:3.2rem 0;text-align:center;
}
.cta-band h2{font-size:1.8rem;margin:0 0 .7rem}
.cta-band p{color:#CFE0E6;max-width:640px;margin:0 auto 1.5rem}
.cta-band .btn-signup{padding:.85rem 2.4rem;font-size:1.05rem}

/* ===== Footer ===== */
footer{background:#0A0818;border-top:1px solid var(--line);padding:3rem 0 1.5rem}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.2rem;margin-bottom:2.2rem}
.foot-brand p{color:var(--muted);font-size:.88rem;margin:.6rem 0 1rem}
.age-badge{
  display:inline-flex;align-items:center;gap:.45rem;font-size:.78rem;font-weight:700;color:var(--pink);
  border:1px solid rgba(255,46,136,.4);border-radius:999px;padding:.35rem .9rem;background:rgba(255,46,136,.08);
}
footer h4{font-size:.95rem;color:var(--lime);margin:0 0 .9rem}
.foot-grid div>a{display:block;color:var(--muted);font-size:.88rem;padding:.3rem 0;transition:color .2s,padding-left .2s}
.foot-grid div>a:hover{color:var(--cyan);padding-left:.35rem}
.foot-bottom{
  border-top:1px solid rgba(0,240,255,.12);padding-top:1.3rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  color:var(--muted);font-size:.82rem;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1200;
  display:flex;align-items:center;gap:.55rem;
  min-height:48px;padding:.65rem 1.1rem;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,.9),rgba(10,8,24,.9)),linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-weight:800;font-size:.85rem;
  box-shadow:0 0 15px rgba(0,240,255,.5);
  opacity:.65;transition:all .25s;
}
.fab i{font-size:1.15rem;color:var(--lime);filter:drop-shadow(0 0 5px rgba(204,255,0,.7))}
.fab:hover{opacity:1;box-shadow:0 0 28px rgba(0,240,255,.7);color:var(--lime);transform:scale(1.05)}
.fab:active{border-color:var(--pink);transform:scale(.96)}
.fab .dot{
  position:absolute;top:-4px;right:-2px;width:12px;height:12px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 8px var(--pink);animation:blinkDot 1s infinite;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .art-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .art-banner h1{font-size:1.8rem}
}
@media (max-width:768px){
  .nav-links{
    display:none;position:absolute;top:66px;left:0;right:0;
    flex-direction:column;background:rgba(15,12,32,.98);
    border-bottom:1px solid var(--line);padding:1rem 1.2rem;gap:.25rem;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.8rem .9rem}
  .burger{display:block;margin-left:.3rem}
  .nav-auth{margin-left:auto}
  .art-content{padding:1.6rem 1.3rem}
}
@media (max-width:520px){
  .art-banner{padding:2.4rem 0 2rem}
  .art-banner h1{font-size:1.45rem}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .btn-signup{padding:.45rem .9rem;font-size:.82rem}
  .link-login{font-size:.82rem;padding:.35rem .4rem}
  .logo{font-size:.9rem}
  .cta-band h2{font-size:1.4rem}
  .fab{bottom:88px;padding:.6rem .95rem}
  .fab span{display:none}
}

/* roulang page: category1 */
:root{
  --bg:#0F0C20;
  --bg2:#0B1A30;
  --panel:#161233;
  --panel2:#1B1740;
  --lime:#CCFF00;
  --cyan:#00F0FF;
  --pink:#FF3D8A;
  --text:#FFFFFF;
  --muted:#A6ACAF;
  --line:rgba(0,240,255,.18);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.35);
  --wrap:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Segoe UI","Helvetica Neue",Arial,"Noto Sans",sans-serif;
  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:var(--lime);}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
h1,h2,h3,h4{color:var(--text);line-height:1.25;margin:0 0 .6em;font-weight:800;}
p{margin:0 0 1em;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}

/* ===== HEADER / NAV ===== */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(15,12,32,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 20px rgba(0,240,255,.08);
}
.nav{display:flex;align-items:center;gap:1.4rem;height:66px;}
.logo{display:flex;align-items:center;gap:.5rem;font-size:1.05rem;color:var(--text);white-space:nowrap;}
.logo i{color:var(--lime);font-size:1.3rem;text-shadow:0 0 10px rgba(204,255,0,.6);}
.logo b{letter-spacing:.5px;}
.logo:hover{color:var(--cyan);}
.nav-links{display:flex;gap:.2rem;margin-left:auto;}
.nav-links a{
  color:var(--muted);padding:.55rem .85rem;border-radius:8px;
  font-weight:600;font-size:.94rem;position:relative;transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(0,240,255,.08);}
.nav-links a.active{color:var(--lime);}
.nav-links a.active::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--lime),var(--cyan));
  box-shadow:0 0 8px rgba(204,255,0,.7);border-radius:2px;
}
.nav-auth{display:flex;align-items:center;gap:.7rem;}
.link-login{color:var(--text);font-weight:600;font-size:.92rem;padding:.45rem .3rem;}
.link-login:hover{color:var(--cyan);}
.btn-signup{
  background:linear-gradient(135deg,var(--lime),#9EF01A);
  color:#0F0C20;font-weight:800;padding:.5rem 1.15rem;border-radius:999px;
  font-size:.92rem;box-shadow:0 0 14px rgba(204,255,0,.4);transition:all .2s ease;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-1px);box-shadow:0 0 22px rgba(204,255,0,.65);color:#0F0C20;}
.btn-signup:active{transform:translateY(0) scale(.97);}
.burger{
  display:none;background:none;border:1px solid var(--line);color:var(--cyan);
  width:42px;height:42px;border-radius:9px;font-size:1.1rem;cursor:pointer;transition:all .2s;
}
.burger:hover{background:rgba(0,240,255,.1);}

/* ===== BANNER ===== */
.cat-banner{
  margin-top:66px;position:relative;
  background:linear-gradient(rgba(15,12,32,.78),rgba(11,26,48,.92)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding:4.5rem 0 3.5rem;
}
.banner-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:1rem;display:flex;gap:.5rem;align-items:center;}
.crumb a{color:var(--cyan);}
.crumb i{font-size:.65rem;}
.tag-neon{
  display:inline-flex;align-items:center;gap:.45rem;
  border:1px solid var(--cyan);color:var(--cyan);
  padding:.3rem .9rem;border-radius:999px;font-size:.8rem;font-weight:700;
  box-shadow:inset 0 0 12px rgba(0,240,255,.15),0 0 10px rgba(0,240,255,.25);
  margin-bottom:1.1rem;letter-spacing:.4px;
}
.cat-banner h1{
  font-size:2.5rem;
  background:linear-gradient(120deg,#fff 30%,var(--cyan) 70%,var(--lime));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.cat-banner .lead{color:#CFE9EE;font-size:1.08rem;max-width:560px;}
.banner-cta{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1.6rem;}
.btn-main{
  display:inline-flex;align-items:center;gap:.55rem;
  background:linear-gradient(135deg,var(--lime),#9EF01A);color:#0F0C20;
  font-weight:800;padding:.85rem 1.7rem;border-radius:999px;font-size:1rem;
  box-shadow:0 0 20px rgba(204,255,0,.4);transition:all .2s ease;
}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(204,255,0,.65);color:#0F0C20;}
.btn-main:active{transform:scale(.97);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:.55rem;
  border:1px solid var(--cyan);color:var(--cyan);
  font-weight:700;padding:.85rem 1.6rem;border-radius:999px;font-size:1rem;transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(0,240,255,.1);box-shadow:var(--glow);color:var(--cyan);}
.status-panel{
  background:rgba(22,18,51,.85);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem;box-shadow:var(--shadow);
}
.status-panel h3{font-size:1rem;display:flex;align-items:center;gap:.5rem;color:var(--cyan);}
.status-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:.7rem .2rem;border-bottom:1px dashed rgba(166,172,175,.2);font-size:.92rem;
}
.status-row:last-child{border-bottom:none;}
.status-row b{color:var(--text);font-weight:700;}
.dot{
  display:inline-block;width:9px;height:9px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 8px rgba(204,255,0,.8);margin-right:.45rem;
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.status-live{color:var(--lime);font-weight:700;font-size:.82rem;}

/* ===== SECTION BASE ===== */
.sec{padding:4rem 0;}
.sec-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:700px;margin-bottom:2.4rem;}
.sec-head .kicker{
  color:var(--lime);font-weight:800;font-size:.82rem;letter-spacing:1.5px;
  text-transform:uppercase;display:block;margin-bottom:.5rem;
}
.sec-head h2{font-size:1.9rem;}
.sec-head p{color:var(--muted);}

/* ===== CRITERIA LIST ===== */
.crit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem 2.6rem;}
.crit{display:flex;gap:1.1rem;align-items:flex-start;padding:1.1rem 0;border-bottom:1px solid rgba(0,240,255,.1);}
.crit-ic{
  flex:0 0 52px;height:52px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:1.3rem;
  background:linear-gradient(135deg,rgba(0,240,255,.14),rgba(204,255,0,.1));
  border:1px solid var(--line);color:var(--cyan);
}
.crit h3{font-size:1.08rem;margin-bottom:.3rem;}
.crit p{color:var(--muted);font-size:.94rem;margin:0;}

/* ===== LINK TABLE ===== */
.link-board{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.board-head{
  display:grid;grid-template-columns:2.2fr 1fr 1fr 1.1fr;gap:1rem;
  padding:.95rem 1.4rem;background:rgba(0,240,255,.07);
  font-size:.78rem;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--cyan);
}
.board-row{
  display:grid;grid-template-columns:2.2fr 1fr 1fr 1.1fr;gap:1rem;align-items:center;
  padding:1.05rem 1.4rem;border-top:1px solid rgba(0,240,255,.09);transition:background .2s;
}
.board-row:hover{background:rgba(0,240,255,.05);}
.board-name{display:flex;align-items:center;gap:.8rem;font-weight:700;}
.board-name i{color:var(--lime);}
.badge-ok{
  display:inline-flex;align-items:center;gap:.35rem;font-size:.78rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(204,255,0,.45);padding:.22rem .7rem;border-radius:999px;
}
.badge-hot{
  display:inline-block;font-size:.72rem;font-weight:800;color:#0F0C20;
  background:linear-gradient(135deg,var(--pink),#FF7A00);padding:.18rem .6rem;border-radius:6px;
  margin-left:.5rem;letter-spacing:.5px;
}
.speed{color:var(--muted);font-size:.9rem;}
.speed b{color:var(--cyan);}
.btn-row{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  border:1px solid var(--cyan);color:var(--cyan);font-weight:700;font-size:.86rem;
  padding:.5rem 1.05rem;border-radius:999px;transition:all .2s;
}
.btn-row:hover{background:var(--cyan);color:#0F0C20;box-shadow:var(--glow);}
.board-note{padding:.9rem 1.4rem;font-size:.85rem;color:var(--muted);border-top:1px solid rgba(0,240,255,.09);}
.board-note i{color:var(--lime);margin-right:.4rem;}

/* ===== SCENARIO / IMAGE SPLIT ===== */
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem;align-items:center;}
.split-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;}
.split-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.split-img:hover img{transform:scale(1.04);}
.split-img .img-tag{
  position:absolute;top:14px;left:14px;background:rgba(15,12,32,.85);
  border:1px solid var(--lime);color:var(--lime);font-size:.78rem;font-weight:800;
  padding:.3rem .8rem;border-radius:999px;backdrop-filter:blur(6px);
}
.usecase{padding:1rem 0 1rem 1.3rem;border-left:2px solid rgba(0,240,255,.25);margin-bottom:.4rem;position:relative;}
.usecase::before{
  content:"";position:absolute;left:-6px;top:1.35rem;width:10px;height:10px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(0,240,255,.8);
}
.usecase h3{font-size:1.05rem;margin-bottom:.25rem;}
.usecase p{color:var(--muted);font-size:.94rem;margin:0;}

/* ===== STEPS ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;counter-reset:step;}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem 1.4rem;position:relative;transition:all .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:0 0 22px rgba(0,240,255,.25);border-color:var(--cyan);}
.step-num{
  width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--cyan),var(--lime));color:#0F0C20;
  font-weight:900;font-size:1.1rem;margin-bottom:1rem;box-shadow:0 0 14px rgba(0,240,255,.4);
}
.step h3{font-size:1.02rem;}
.step p{color:var(--muted);font-size:.92rem;margin:0;}

/* ===== STATS ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;}
.stat{
  text-align:left;padding:1.5rem 1.5rem;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(0,240,255,.06),rgba(204,255,0,.04));
}
.stat b{
  display:block;font-size:2rem;font-weight:900;
  background:linear-gradient(120deg,var(--lime),var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.stat span{color:var(--muted);font-size:.9rem;}

/* ===== FAQ ===== */
.faq-list{max-width:820px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:1rem;background:var(--panel);overflow:hidden;transition:border-color .2s;}
.faq-item[open]{border-color:var(--cyan);box-shadow:0 0 16px rgba(0,240,255,.15);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:1.1rem 1.3rem;font-weight:700;font-size:1rem;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--cyan);font-size:.85rem;transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item summary:hover{color:var(--lime);}
.faq-item .faq-body{padding:0 1.3rem 1.2rem;color:var(--muted);font-size:.95rem;}

/* ===== CTA ===== */
.cta-band{
  background:linear-gradient(rgba(11,26,48,.88),rgba(15,12,32,.94)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  text-align:center;padding:4.5rem 0;
}
.cta-band h2{font-size:2rem;margin-bottom:.6rem;}
.cta-band p{color:#CFE9EE;max-width:600px;margin:0 auto 1.8rem;}
.pay-badges{display:flex;justify-content:center;gap:.9rem;flex-wrap:wrap;margin-top:1.8rem;}
.pay-badges span{
  border:1px solid var(--line);color:var(--muted);font-size:.85rem;font-weight:700;
  padding:.45rem 1.05rem;border-radius:999px;display:inline-flex;align-items:center;gap:.45rem;
}
.pay-badges i{color:var(--cyan);}

/* ===== FOOTER ===== */
footer{background:#0A0817;border-top:1px solid var(--line);padding:3.2rem 0 1.6rem;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2.4rem;margin-bottom:2.2rem;}
.foot-brand p{color:var(--muted);font-size:.92rem;}
footer h4{
  font-size:.85rem;letter-spacing:1.2px;text-transform:uppercase;color:var(--cyan);
  margin-bottom:1rem;font-weight:800;
}
.foot-grid a{display:block;color:var(--muted);font-size:.93rem;padding:.28rem 0;}
.foot-grid a:hover{color:var(--lime);}
.foot-grid .logo{display:inline-flex;}
.age-badge{
  display:inline-flex;align-items:center;gap:.45rem;border:1px solid var(--pink);
  color:var(--pink);font-size:.8rem;font-weight:800;padding:.3rem .85rem;border-radius:999px;margin-top:.6rem;
}
.foot-bottom{
  border-top:1px solid rgba(0,240,255,.12);padding-top:1.4rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  color:var(--muted);font-size:.84rem;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1200;
  display:flex;align-items:center;gap:.55rem;
  background:rgba(0,0,0,.6);backdrop-filter:blur(10px);
  border:2px solid transparent;border-radius:999px;
  background-image:linear-gradient(rgba(10,8,23,.9),rgba(10,8,23,.9)),linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-weight:800;font-size:.9rem;
  padding:.75rem 1.2rem;min-height:48px;
  box-shadow:0 0 15px rgba(0,240,255,.5);opacity:.65;transition:all .25s ease;
}
.fab i{font-size:1.15rem;color:var(--lime);}
.fab:hover{opacity:1;box-shadow:0 0 26px rgba(0,240,255,.75);color:var(--lime);transform:scale(1.05);}
.fab:active{transform:scale(.95);border-color:var(--pink);}
.fab .fab-dot{
  position:absolute;top:-4px;right:-2px;width:11px;height:11px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 10px rgba(255,61,138,.9);animation:pulse 1.4s infinite;
}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .banner-grid{grid-template-columns:1fr;gap:2.2rem;}
  .cat-banner h1{font-size:2.05rem;}
  .crit-grid{gap:1rem 1.8rem;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:2rem;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .nav-links{
    position:fixed;top:66px;left:0;right:0;flex-direction:column;
    background:rgba(15,12,32,.98);border-bottom:1px solid var(--line);
    padding:1rem 1.4rem 1.4rem;gap:.3rem;display:none;
    box-shadow:0 20px 40px rgba(0,0,0,.5);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:.8rem .6rem;font-size:1rem;}
  .nav-links a.active::after{left:.6rem;right:auto;width:36px;}
  .burger{display:flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-auth{margin-left:auto;}
  .nav{gap:.8rem;}
  .crit-grid{grid-template-columns:1fr;}
  .board-head{display:none;}
  .board-row{grid-template-columns:1fr;gap:.55rem;padding:1.1rem 1.2rem;}
  .sec{padding:3rem 0;}
}
@media (max-width:520px){
  .cat-banner{padding:3.2rem 0 2.6rem;}
  .cat-banner h1{font-size:1.6rem;}
  .btn-main,.btn-ghost{width:100%;justify-content:center;}
  .steps{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .link-login{display:inline-flex;}
  .btn-signup{padding:.45rem .9rem;font-size:.84rem;}
  .logo b{font-size:.85rem;}
  .cta-band h2{font-size:1.5rem;}
  .foot-grid{grid-template-columns:1fr;}
  .fab{bottom:84px;padding:.7rem 1rem;}
}

/* roulang page: category2 */
:root{
  --bg:#0f0c20;
  --bg2:#0b1a30;
  --panel:#151230;
  --panel2:#1b1740;
  --lime:#ccff00;
  --cyan:#00f0ff;
  --pink:#ff2d78;
  --text:#ffffff;
  --muted:#a6acaf;
  --border:rgba(0,240,255,.18);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.35);
  --font:'Segoe UI','Roboto','Arial',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  background-image:radial-gradient(circle at 15% 10%,rgba(0,240,255,.06),transparent 40%),radial-gradient(circle at 85% 80%,rgba(204,255,0,.05),transparent 45%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .2s;}
a:hover{color:var(--lime);}
h1,h2,h3,h4{color:var(--text);line-height:1.25;margin-top:0;}
p{color:var(--muted);}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}
::selection{background:var(--cyan);color:#001018;}

/* ============ HEADER / NAV ============ */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(11,10,26,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 20px rgba(0,0,0,.5);
}
.site-head .nav{
  display:flex;align-items:center;gap:1.4rem;
  height:68px;
}
.logo{
  display:inline-flex;align-items:center;gap:.55rem;
  font-size:1.12rem;color:var(--text);font-weight:800;letter-spacing:.5px;white-space:nowrap;
}
.logo i{color:var(--lime);font-size:1.35rem;filter:drop-shadow(0 0 6px rgba(204,255,0,.6));}
.logo b{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.nav-links{display:flex;align-items:center;gap:.35rem;margin-left:auto;}
.nav-links a{
  color:var(--muted);font-weight:600;font-size:.95rem;
  padding:.55rem .85rem;border-radius:8px;position:relative;transition:all .2s;
}
.nav-links a:hover{color:var(--cyan);background:rgba(0,240,255,.07);}
.nav-links a.active{color:var(--lime);}
.nav-links a.active::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:.2rem;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--lime));
  box-shadow:0 0 8px rgba(204,255,0,.7);border-radius:2px;
}
.nav-auth{display:flex;align-items:center;gap:.7rem;}
.link-login{color:var(--text);font-weight:600;font-size:.92rem;padding:.5rem .4rem;}
.link-login:hover{color:var(--cyan);}
.btn-signup{
  background:linear-gradient(135deg,var(--lime),#8ee000);
  color:#0a1400;font-weight:800;font-size:.92rem;
  padding:.55rem 1.25rem;border-radius:999px;
  box-shadow:0 0 15px rgba(204,255,0,.4);
  transition:transform .15s,box-shadow .2s;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(204,255,0,.65);color:#0a1400;}
.btn-signup:active{transform:translateY(0) scale(.97);}
.burger{
  display:none;background:none;border:1px solid var(--border);color:var(--cyan);
  font-size:1.15rem;padding:.45rem .7rem;border-radius:8px;cursor:pointer;transition:all .2s;
}
.burger:hover{background:rgba(0,240,255,.1);}

/* ============ HERO ============ */
.hero{
  margin-top:68px;position:relative;overflow:hidden;
  background:url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(9,7,25,.96) 35%,rgba(11,26,48,.82) 65%,rgba(15,12,32,.65));
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.25fr .85fr;gap:2.5rem;align-items:center;
  padding:4.2rem 0 4.6rem;
}
.hero-burst{
  display:inline-flex;align-items:center;gap:.5rem;
  background:linear-gradient(135deg,var(--pink),#ff5c3a);
  color:#fff;font-weight:800;font-size:.8rem;letter-spacing:.6px;
  padding:.4rem 1rem;border-radius:999px;text-transform:uppercase;
  box-shadow:0 0 16px rgba(255,45,120,.55);
  animation:burstPulse 1.8s infinite;
}
@keyframes burstPulse{0%,100%{transform:scale(1);}50%{transform:scale(1.05);}}
.hero h1{
  font-size:2.55rem;font-weight:900;margin:1rem 0 .9rem;
  text-shadow:0 0 30px rgba(0,240,255,.25);
}
.hero h1 .hl{background:linear-gradient(90deg,var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero .lead{font-size:1.08rem;color:#cfd6e4;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:1.6rem;}
.btn-main{
  display:inline-flex;align-items:center;gap:.55rem;
  background:linear-gradient(135deg,var(--cyan),#00a8ff);
  color:#001018;font-weight:800;font-size:1rem;
  padding:.85rem 1.7rem;border-radius:999px;
  box-shadow:0 0 22px rgba(0,240,255,.45);
  transition:transform .15s,box-shadow .2s;
}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(0,240,255,.7);color:#001018;}
.btn-main:active{transform:scale(.97);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:.55rem;
  border:1px solid var(--lime);color:var(--lime);font-weight:700;font-size:1rem;
  padding:.85rem 1.7rem;border-radius:999px;transition:all .2s;
}
.btn-ghost:hover{background:rgba(204,255,0,.1);box-shadow:0 0 16px rgba(204,255,0,.35);color:var(--lime);}
.hero-note{display:flex;flex-wrap:wrap;gap:1.1rem;margin-top:1.4rem;font-size:.85rem;color:#9aa3b5;}
.hero-note span{display:inline-flex;align-items:center;gap:.4rem;}
.hero-note i{color:var(--lime);}

/* countdown panel */
.count-panel{
  background:rgba(15,12,32,.75);backdrop-filter:blur(10px);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:1.6rem 1.5rem;box-shadow:var(--shadow),var(--glow);
  position:relative;
}
.count-panel::before{
  content:"HOT";position:absolute;top:-12px;right:18px;
  background:var(--pink);color:#fff;font-weight:800;font-size:.72rem;letter-spacing:1px;
  padding:.25rem .7rem;border-radius:6px;box-shadow:0 0 12px rgba(255,45,120,.6);
}
.count-panel h3{font-size:1.05rem;margin-bottom:.3rem;}
.count-panel .pool{
  font-size:2rem;font-weight:900;color:var(--lime);
  text-shadow:0 0 18px rgba(204,255,0,.5);letter-spacing:.5px;
}
.count-label{font-size:.82rem;color:var(--muted);margin:.9rem 0 .45rem;text-transform:uppercase;letter-spacing:.8px;}
.count-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.55rem;}
.count-cell{
  background:var(--panel2);border:1px solid var(--border);border-radius:var(--radius-sm);
  text-align:center;padding:.6rem .2rem;
}
.count-cell b{display:block;font-size:1.45rem;color:var(--cyan);font-weight:900;text-shadow:0 0 10px rgba(0,240,255,.5);}
.count-cell span{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;}
.count-panel .btn-main{width:100%;justify-content:center;margin-top:1.1rem;}

/* ============ SECTION BASE ============ */
section{padding:4rem 0;}
.sec-head{margin-bottom:2.2rem;max-width:640px;}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:.45rem;
  color:var(--cyan);font-size:.8rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:.6rem;
}
.sec-head .kicker::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--lime));box-shadow:0 0 8px rgba(0,240,255,.6);}
.sec-head h2{font-size:1.85rem;font-weight:800;margin-bottom:.6rem;}
.sec-head p{font-size:1rem;}

/* ============ VALUE ============ */
.value-sec{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;}
.value-item{
  display:flex;gap:1.1rem;align-items:flex-start;
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.4rem 1.5rem;transition:transform .2s,box-shadow .25s,border-color .2s;
}
.value-item:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:var(--glow);}
.value-icon{
  flex:0 0 48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(0,240,255,.15),rgba(204,255,0,.12));
  border:1px solid var(--border);
  color:var(--lime);font-size:1.25rem;
}
.value-item h3{font-size:1.08rem;margin-bottom:.35rem;}
.value-item p{font-size:.92rem;margin:0;}

/* ============ STEPS ============ */
.steps-sec .step-row{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:2.4rem;align-items:center;margin-bottom:3rem;
}
.steps-sec .step-row:last-child{margin-bottom:0;}
.steps-sec .step-row.rev{grid-template-columns:1.05fr .95fr;}
.step-img{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);}
.step-img img{width:100%;height:300px;object-fit:cover;transition:transform .4s;}
.step-img:hover img{transform:scale(1.04);}
.step-img .tag{
  position:absolute;top:14px;left:14px;
  background:rgba(9,7,25,.85);border:1px solid var(--cyan);color:var(--cyan);
  font-size:.75rem;font-weight:800;letter-spacing:1px;padding:.3rem .8rem;border-radius:999px;
  text-transform:uppercase;box-shadow:0 0 10px rgba(0,240,255,.4);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--lime));
  color:#001018;font-weight:900;font-size:1.15rem;margin-bottom:.9rem;
  box-shadow:0 0 14px rgba(0,240,255,.45);
}
.step-copy h3{font-size:1.35rem;margin-bottom:.6rem;}
.step-copy p{font-size:.97rem;}
.step-copy ul{list-style:none;padding:0;margin:.9rem 0 0;}
.step-copy li{
  position:relative;padding-left:1.6rem;margin-bottom:.55rem;color:#c6cdda;font-size:.93rem;
}
.step-copy li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;color:var(--lime);font-size:.8rem;top:.2rem;
}

/* ============ REQUIREMENTS ============ */
.req-sec{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.req-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:2.5rem;align-items:start;}
.req-list{display:flex;flex-direction:column;gap:0;}
.req-item{
  display:flex;gap:1rem;align-items:flex-start;padding:1.15rem 0;
  border-bottom:1px dashed rgba(0,240,255,.16);
}
.req-item:last-child{border-bottom:none;}
.req-item i{color:var(--cyan);font-size:1.15rem;margin-top:.2rem;flex:0 0 24px;text-align:center;}
.req-item h4{font-size:1rem;margin-bottom:.2rem;}
.req-item p{font-size:.9rem;margin:0;}
.pay-panel{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.8rem;box-shadow:var(--shadow);
}
.pay-panel h3{font-size:1.15rem;margin-bottom:1.1rem;}
.pay-row{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem;margin-bottom:1.2rem;}
.pay-badge{
  background:var(--panel2);border:1px solid var(--border);border-radius:var(--radius-sm);
  text-align:center;padding:.9rem .4rem;transition:border-color .2s,box-shadow .2s;
}
.pay-badge:hover{border-color:var(--lime);box-shadow:0 0 12px rgba(204,255,0,.25);}
.pay-badge i{font-size:1.5rem;color:var(--lime);margin-bottom:.35rem;display:block;}
.pay-badge span{font-size:.8rem;font-weight:700;color:var(--text);}
.pay-stat{display:flex;justify-content:space-between;padding:.6rem 0;border-bottom:1px dashed rgba(0,240,255,.16);font-size:.9rem;}
.pay-stat:last-child{border-bottom:none;}
.pay-stat span{color:var(--muted);}
.pay-stat b{color:var(--cyan);}

/* ============ REVIEWS ============ */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;}
.rev-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.5rem;transition:transform .2s,box-shadow .25s;
}
.rev-card:hover{transform:translateY(-4px);box-shadow:var(--glow);}
.rev-stars{color:var(--lime);font-size:.85rem;margin-bottom:.7rem;letter-spacing:2px;}
.rev-card p{font-size:.92rem;font-style:italic;color:#c6cdda;margin-bottom:1rem;}
.rev-user{display:flex;align-items:center;gap:.7rem;}
.rev-avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--pink));
  display:flex;align-items:center;justify-content:center;font-weight:900;color:#001018;font-size:.95rem;
}
.rev-user b{display:block;font-size:.9rem;color:var(--text);}
.rev-user small{color:var(--muted);font-size:.78rem;}
.rev-win{color:var(--lime) !important;font-weight:700;}

/* ============ FAQ ============ */
.faq-sec{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.faq-list{max-width:820px;}
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius-sm);
  margin-bottom:.85rem;background:var(--panel);overflow:hidden;transition:border-color .2s;
}
.faq-item[open]{border-color:var(--cyan);box-shadow:0 0 14px rgba(0,240,255,.18);}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:1.05rem 1.3rem;font-weight:700;font-size:.98rem;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--cyan);transition:transform .25s;flex:0 0 auto;}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--lime);}
.faq-item .faq-body{padding:0 1.3rem 1.15rem;font-size:.92rem;color:var(--muted);}

/* ============ FINAL CTA ============ */
.final-cta{
  text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(0,240,255,.08),rgba(204,255,0,.06)),var(--panel);
  border-top:1px solid var(--border);
}
.final-cta h2{font-size:1.9rem;font-weight:900;margin-bottom:.7rem;}
.final-cta p{max-width:600px;margin:0 auto 1.6rem;}
.cta-btns{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem;}
.cta-mini{margin-top:1.2rem;font-size:.83rem;color:#8f97a8;display:flex;justify-content:center;gap:1.4rem;flex-wrap:wrap;}
.cta-mini span{display:inline-flex;align-items:center;gap:.4rem;}
.cta-mini i{color:var(--cyan);}

/* ============ FOOTER ============ */
footer{background:#0a0819;border-top:1px solid var(--border);padding:3.2rem 0 1.6rem;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2.2rem;margin-bottom:2.2rem;}
.foot-brand p{font-size:.88rem;margin:.4rem 0 1rem;}
.age-badge{
  display:inline-flex;align-items:center;gap:.45rem;
  border:1px solid var(--pink);color:var(--pink);font-size:.78rem;font-weight:800;
  padding:.35rem .9rem;border-radius:999px;
}
footer h4{font-size:.95rem;text-transform:uppercase;letter-spacing:1px;color:var(--cyan);margin-bottom:.9rem;}
.foot-grid > div > a{display:block;color:var(--muted);font-size:.9rem;padding:.28rem 0;transition:color .2s,padding-left .2s;}
.foot-grid > div > a:hover{color:var(--lime);padding-left:.3rem;}
.foot-bottom{
  border-top:1px solid rgba(0,240,255,.12);padding-top:1.3rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.7rem;
  font-size:.82rem;color:#7d8595;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1200;
  display:flex;align-items:center;gap:.55rem;
  background:rgba(0,0,0,.6);backdrop-filter:blur(8px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(10,8,25,.9),rgba(10,8,25,.9)),linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-weight:800;font-size:.85rem;
  padding:.75rem 1.15rem;border-radius:999px;
  min-width:48px;min-height:48px;
  box-shadow:0 0 15px rgba(0,240,255,.5);
  opacity:.65;transition:opacity .25s,box-shadow .25s,transform .15s;
  animation:fabBreath 3s infinite;
}
@keyframes fabBreath{0%,100%{opacity:.65;}50%{opacity:.9;}}
.fab:hover{opacity:1;box-shadow:0 0 28px rgba(0,240,255,.8);color:var(--lime);animation:none;}
.fab:active{transform:scale(.94);border-color:var(--pink);}
.fab i{font-size:1.15rem;}
.fab .fab-dot{
  position:absolute;top:-3px;right:-3px;width:11px;height:11px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 8px rgba(255,45,120,.9);
  animation:burstPulse 1.2s infinite;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:2rem;padding:3.2rem 0;}
  .hero h1{font-size:2.1rem;}
  .rev-grid{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .req-layout{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(11,10,26,.98);border-bottom:1px solid var(--border);
    padding:.6rem 0;box-shadow:0 12px 24px rgba(0,0,0,.5);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:.85rem 1.4rem;border-radius:0;}
  .nav-links a.active::after{left:1.4rem;right:auto;width:32px;}
  .burger{display:inline-flex;}
  .site-head .nav{gap:.8rem;}
  .nav-auth{margin-left:auto;}
  .value-grid{grid-template-columns:1fr;}
  .steps-sec .step-row,.steps-sec .step-row.rev{grid-template-columns:1fr;gap:1.4rem;}
  .steps-sec .step-row.rev .step-img{order:-1;}
  .rev-grid{grid-template-columns:1fr;}
  section{padding:3rem 0;}
}
@media (max-width:520px){
  .hero h1{font-size:1.7rem;}
  .hero .lead{font-size:.98rem;}
  .btn-main,.btn-ghost{width:100%;justify-content:center;}
  .count-grid{grid-template-columns:repeat(4,1fr);gap:.4rem;}
  .count-cell b{font-size:1.15rem;}
  .pay-row{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;gap:1.6rem;}
  .foot-bottom{flex-direction:column;}
  .sec-head h2{font-size:1.45rem;}
  .final-cta h2{font-size:1.5rem;}
  .step-img img{height:220px;}
  .fab span{display:none;}
  .fab{padding:.75rem;}
}

/* roulang page: category3 */
:root{
  --bg:#0F0C20; --bg2:#0B1A30; --panel:#171331; --panel2:#1C1840;
  --lime:#CCFF00; --cyan:#00F0FF; --pink:#FF3D8A;
  --text:#FFFFFF; --muted:#A6ACAF; --line:rgba(0,240,255,.18);
  --radius:14px; --radius-lg:20px;
  --shadow-neon:0 0 18px rgba(0,240,255,.25);
  --shadow-lime:0 0 18px rgba(204,255,0,.28);
  --font:'Segoe UI','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text);font-family:var(--font);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;}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
h1,h2,h3,h4{line-height:1.25;font-weight:800;}
.kicker{display:inline-flex;align-items:center;gap:.5rem;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--lime);font-weight:700;margin-bottom:.9rem;}
.kicker::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--lime),var(--cyan));}

/* ===== Header ===== */
.site-head{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,12,32,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.site-head .nav{display:flex;align-items:center;gap:1.4rem;height:66px;}
.logo{display:inline-flex;align-items:center;gap:.55rem;font-size:1.05rem;color:#fff;font-weight:800;letter-spacing:.02em;white-space:nowrap;}
.logo i{color:var(--lime);font-size:1.25rem;filter:drop-shadow(0 0 6px rgba(204,255,0,.6));}
.logo:hover{color:var(--cyan);}
.nav-links{display:flex;gap:.2rem;margin-left:auto;}
.nav-links a{color:var(--muted);font-weight:600;font-size:.93rem;padding:.55rem .85rem;border-radius:8px;position:relative;}
.nav-links a:hover{color:#fff;background:rgba(0,240,255,.08);}
.nav-links a.active{color:var(--lime);}
.nav-links a.active::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:2px;height:2px;background:linear-gradient(90deg,var(--lime),var(--cyan));box-shadow:0 0 8px rgba(204,255,0,.7);border-radius:2px;}
.nav-auth{display:flex;align-items:center;gap:.7rem;}
.link-login{color:#fff;font-weight:600;font-size:.92rem;padding:.5rem .4rem;}
.link-login:hover{color:var(--cyan);}
.btn-signup{background:linear-gradient(120deg,var(--lime),#9dff00);color:#0F0C20;font-weight:800;font-size:.92rem;padding:.55rem 1.2rem;border-radius:10px;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s;white-space:nowrap;}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.45);color:#0F0C20;}
.burger{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:42px;border-radius:10px;font-size:1.1rem;}
.burger:hover{border-color:var(--cyan);color:var(--cyan);}

/* ===== Page banner ===== */
.page-banner{margin-top:66px;position:relative;background:linear-gradient(rgba(15,12,32,.82),rgba(11,26,48,.94)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;border-bottom:1px solid var(--line);padding:4.2rem 0 3.4rem;}
.banner-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:2.5rem;align-items:center;}
.crumbs{font-size:.82rem;color:var(--muted);margin-bottom:1rem;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--cyan);}
.crumbs i{font-size:.65rem;margin:0 .4rem;}
.page-banner h1{font-size:2.35rem;margin-bottom:1rem;}
.page-banner h1 span{color:var(--cyan);text-shadow:0 0 18px rgba(0,240,255,.5);}
.page-banner p.lead{color:#c9d3d6;font-size:1.05rem;max-width:560px;margin-bottom:1.6rem;}
.banner-cta{display:flex;flex-wrap:wrap;gap:.9rem;align-items:center;}
.btn-main{display:inline-flex;align-items:center;gap:.55rem;background:linear-gradient(120deg,var(--lime),#9dff00);color:#0F0C20;font-weight:800;padding:.85rem 1.6rem;border-radius:12px;box-shadow:var(--shadow-lime);transition:transform .2s,box-shadow .2s;font-size:1rem;}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(204,255,0,.5);color:#0F0C20;}
.btn-ghost{display:inline-flex;align-items:center;gap:.55rem;border:1px solid var(--cyan);color:var(--cyan);font-weight:700;padding:.82rem 1.5rem;border-radius:12px;transition:background .2s,box-shadow .2s;font-size:.98rem;}
.btn-ghost:hover{background:rgba(0,240,255,.1);box-shadow:var(--shadow-neon);color:var(--cyan);}
.shield-panel{background:rgba(23,19,49,.85);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-neon);}
.shield-panel h3{font-size:1rem;color:var(--cyan);margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;}
.check-row{display:flex;align-items:center;justify-content:space-between;padding:.7rem .2rem;border-bottom:1px dashed rgba(166,172,175,.2);font-size:.92rem;}
.check-row:last-child{border-bottom:none;}
.check-row .st{display:inline-flex;align-items:center;gap:.4rem;font-weight:700;font-size:.8rem;color:var(--lime);}
.check-row .st i{animation:blink 1.6s infinite;}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}

/* ===== Sections ===== */
section{padding:4.2rem 0;}
.sec-head{max-width:640px;margin-bottom:2.4rem;}
.sec-head h2{font-size:1.85rem;margin-bottom:.7rem;}
.sec-head h2 em{font-style:normal;color:var(--lime);}
.sec-head p{color:var(--muted);}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);}

/* Value grid */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.value-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;transition:transform .25s,box-shadow .25s,border-color .25s;}
.value-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-neon);border-color:var(--cyan);}
.value-item .ic{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:var(--cyan);background:rgba(0,240,255,.1);margin-bottom:1rem;border:1px solid var(--line);}
.value-item h3{font-size:1.08rem;margin-bottom:.5rem;}
.value-item p{color:var(--muted);font-size:.93rem;}

/* Screens carousel */
.screens{background:var(--bg2);}
.screens-track{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.screen-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);transition:transform .25s,box-shadow .25s;}
.screen-card img{height:230px;width:100%;object-fit:cover;transition:transform .4s;}
.screen-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--shadow-neon);}
.screen-card:hover img{transform:scale(1.06);}
.screen-card .cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(11,10,25,.95));padding:2rem 1.1rem .9rem;font-size:.9rem;font-weight:700;}
.screen-card .tag{position:absolute;top:12px;left:12px;background:var(--pink);color:#fff;font-size:.68rem;font-weight:800;letter-spacing:.08em;padding:.3rem .6rem;border-radius:6px;box-shadow:0 0 12px rgba(255,61,138,.5);}

/* Steps / requirements */
.req-split{display:grid;grid-template-columns:1.05fr .95fr;gap:2.6rem;align-items:start;}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:1.2rem;}
.step{display:flex;gap:1.1rem;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.3rem;transition:border-color .2s,box-shadow .2s;}
.step:hover{border-color:var(--lime);box-shadow:var(--shadow-lime);}
.step .num{counter-increment:step;flex:0 0 44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#0F0C20;background:linear-gradient(135deg,var(--lime),var(--cyan));font-size:1.05rem;}
.step .num::before{content:counter(step);}
.step h3{font-size:1rem;margin-bottom:.3rem;}
.step p{color:var(--muted);font-size:.92rem;}
.req-side{background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.7rem;}
.req-side h3{font-size:1.05rem;color:var(--cyan);margin-bottom:1.1rem;}
.req-side ul{list-style:none;}
.req-side li{display:flex;gap:.7rem;align-items:flex-start;padding:.6rem 0;border-bottom:1px dashed rgba(166,172,175,.18);font-size:.93rem;color:#d5dbdd;}
.req-side li:last-child{border-bottom:none;}
.req-side li i{color:var(--lime);margin-top:.25rem;}
.pay-badges{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.2rem;}
.pay-badges span{border:1px solid var(--line);border-radius:8px;padding:.4rem .8rem;font-size:.8rem;font-weight:700;color:var(--cyan);background:rgba(0,240,255,.06);}

/* Reviews wall */
.reviews{background:var(--bg2);}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.rev-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:transform .25s,box-shadow .25s;}
.rev-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-neon);}
.rev-stars{color:var(--lime);font-size:.85rem;margin-bottom:.7rem;letter-spacing:.15em;}
.rev-card p{color:#cfd6d8;font-size:.93rem;margin-bottom:1rem;}
.rev-user{display:flex;align-items:center;gap:.7rem;}
.rev-user .av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--pink));display:flex;align-items:center;justify-content:center;font-weight:800;color:#0F0C20;font-size:.9rem;}
.rev-user b{font-size:.9rem;display:block;}
.rev-user small{color:var(--muted);font-size:.78rem;}

/* Alert strip */
.alert-strip{background:linear-gradient(90deg,rgba(255,61,138,.12),rgba(0,240,255,.08));border:1px solid rgba(255,61,138,.35);border-radius:var(--radius-lg);padding:1.6rem 1.8rem;display:flex;gap:1.2rem;align-items:flex-start;}
.alert-strip .ai{flex:0 0 52px;height:52px;border-radius:50%;background:rgba(255,61,138,.18);display:flex;align-items:center;justify-content:center;color:var(--pink);font-size:1.4rem;}
.alert-strip h3{font-size:1.1rem;margin-bottom:.4rem;color:var(--pink);}
.alert-strip p{color:#d5dbdd;font-size:.94rem;}

/* FAQ */
.faq-list{max-width:820px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:1rem;background:var(--panel);overflow:hidden;}
.faq-item summary{list-style:none;cursor:pointer;padding:1.1rem 1.4rem;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-size:.98rem;transition:color .2s;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--cyan);transition:transform .25s;flex:0 0 auto;}
.faq-item[open] summary{color:var(--lime);}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-item .ans{padding:0 1.4rem 1.2rem;color:var(--muted);font-size:.93rem;}

/* Final CTA */
.final-cta{background:linear-gradient(rgba(15,12,32,.88),rgba(11,26,48,.94)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.final-cta h2{font-size:2rem;margin-bottom:.8rem;}
.final-cta h2 span{color:var(--lime);text-shadow:0 0 16px rgba(204,255,0,.5);}
.final-cta p{color:#c9d3d6;max-width:600px;margin:0 auto 1.8rem;}
.cta-btns{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem;}
.trust-line{display:flex;justify-content:center;flex-wrap:wrap;gap:1.4rem;margin-top:1.8rem;color:var(--muted);font-size:.85rem;}
.trust-line i{color:var(--cyan);margin-right:.35rem;}

/* Footer */
footer{background:#0B0918;border-top:1px solid var(--line);padding:3.2rem 0 1.6rem;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2.2rem;}
.foot-brand p{color:var(--muted);font-size:.9rem;margin:.6rem 0 1rem;}
.age-badge{display:inline-flex;align-items:center;gap:.45rem;border:1px solid var(--pink);color:var(--pink);font-size:.78rem;font-weight:700;padding:.35rem .75rem;border-radius:8px;}
footer h4{font-size:.95rem;color:var(--cyan);margin-bottom:.9rem;letter-spacing:.04em;}
.foot-grid a{display:block;color:var(--muted);font-size:.9rem;padding:.28rem 0;}
.foot-grid a:hover{color:var(--lime);}
.foot-bottom{border-top:1px solid rgba(166,172,175,.15);padding-top:1.3rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.7rem;color:var(--muted);font-size:.82rem;}

/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:1200;width:60px;height:60px;border-radius:18px;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;border:2px solid transparent;background-clip:padding-box;box-shadow:0 0 15px rgba(0,240,255,.5);opacity:.65;transition:opacity .25s,transform .25s,box-shadow .25s;}
.fab::before{content:"";position:absolute;inset:-2px;border-radius:20px;padding:2px;background:linear-gradient(135deg,var(--lime),var(--cyan));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
.fab i{color:var(--cyan);font-size:1.5rem;filter:drop-shadow(0 0 6px rgba(0,240,255,.7));}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 28px rgba(0,240,255,.7);}
.fab:active{transform:scale(.94);}
.fab .dot{position:absolute;top:-4px;right:-4px;width:14px;height:14px;border-radius:50%;background:var(--pink);box-shadow:0 0 10px rgba(255,61,138,.8);animation:blink 1.4s infinite;}

/* Responsive */
@media (max-width:1024px){
  .banner-grid{grid-template-columns:1fr;}
  .value-grid,.screens-track,.rev-grid{grid-template-columns:repeat(2,1fr);}
  .req-split{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .burger{display:flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-links{position:fixed;top:66px;left:0;right:0;background:rgba(15,12,32,.98);flex-direction:column;padding:1rem 1.4rem 1.4rem;border-bottom:1px solid var(--line);display:none;margin-left:0;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:.85rem .6rem;border-radius:8px;}
  .nav-links a.active::after{left:.6rem;right:auto;width:34px;}
  .nav-auth{margin-left:auto;}
  .site-head .nav{gap:.8rem;}
  .page-banner h1{font-size:1.75rem;}
  .sec-head h2{font-size:1.5rem;}
}
@media (max-width:520px){
  .value-grid,.screens-track,.rev-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .link-login{display:none;}
  .btn-signup{padding:.5rem .9rem;font-size:.85rem;}
  .logo b{font-size:.85rem;}
  section{padding:3rem 0;}
  .alert-strip{flex-direction:column;}
  .banner-cta .btn-main,.banner-cta .btn-ghost{width:100%;justify-content:center;}
}