/* roulang page: index */
:root{
  --bg-deep:#0B1A30;
  --bg-violet:#0F0C20;
  --bg-panel:#13233d;
  --bg-soft:#182c4a;
  --accent:#00F0FF;
  --accent-lime:#CCFF00;
  --accent-warm:#FFD166;
  --text:#FFFFFF;
  --text-dim:#A6ACAF;
  --text-soft:#C9D6E4;
  --border:rgba(0,240,255,.18);
  --border-soft:rgba(255,255,255,.08);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 34px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.35);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","Be Vietnam Pro",Roboto,Arial,sans-serif;
  background:radial-gradient(circle at 20% 0%,#12294a 0%,var(--bg-deep) 45%,#081222 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}
a:hover{color:var(--accent-lime)}
button{font-family:inherit;cursor:pointer}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(11,26,48,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.02rem;color:var(--text);line-height:1.2}
.logo:hover{color:var(--accent)}
.logo .logo-icon{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,#00F0FF 0%,#0052FF 100%);
  display:flex;align-items:center;justify-content:center;
  color:#06121f;font-size:1.15rem;box-shadow:var(--glow);
}
.logo span small{display:block;font-size:.62rem;color:var(--accent-lime);font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  color:var(--text-soft);font-weight:600;font-size:.92rem;
  padding:9px 14px;border-radius:999px;transition:all .2s;
}
.main-nav a:hover{color:var(--accent);background:rgba(0,240,255,.08)}
.main-nav a.active{color:#06121f;background:linear-gradient(135deg,var(--accent),#5ef7ff);box-shadow:var(--glow)}
.nav-auth{display:flex;align-items:center;gap:10px}
.btn-login{
  background:none;border:none;color:var(--text-soft);font-weight:600;font-size:.9rem;
  padding:8px 10px;border-radius:8px;transition:color .2s;
}
.btn-login:hover{color:var(--accent)}
.btn-signup{
  border:none;color:#06121f;font-weight:800;font-size:.9rem;
  padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--accent-lime),#8ef000);
  box-shadow:0 0 16px rgba(204,255,0,.35);
  transition:transform .2s,box-shadow .2s;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(204,255,0,.55)}
.btn-signup:active{transform:translateY(0) scale(.97)}
/* ============ BOTTOM TAB (mobile) ============ */
.bottom-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:200;
  background:rgba(11,26,48,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.bottom-tab-inner{display:flex;justify-content:space-around}
.bottom-tab a{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  color:var(--text-dim);font-size:.62rem;font-weight:600;padding:4px 8px;border-radius:10px;
  min-width:56px;transition:color .2s;
}
.bottom-tab a i{font-size:1.05rem}
.bottom-tab a.active,.bottom-tab a:hover{color:var(--accent)}
/* ============ HERO ============ */
.hero{
  position:relative;margin-top:66px;
  background:linear-gradient(180deg,rgba(8,18,34,.55),rgba(11,26,48,.92)),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  padding:78px 0 64px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:90px;
  background:linear-gradient(180deg,transparent,var(--bg-deep));
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto;text-align:center;padding:0 20px}
.hero-flash{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,#FF007F,#ff4d6d);
  color:#fff;font-weight:800;font-size:.8rem;letter-spacing:.05em;
  padding:8px 18px;border-radius:999px;margin-bottom:20px;
  box-shadow:0 0 20px rgba(255,0,127,.5);
  animation:pulseGlow 2.2s ease-in-out infinite;
}
@keyframes pulseGlow{0%,100%{box-shadow:0 0 12px rgba(255,0,127,.4)}50%{box-shadow:0 0 28px rgba(255,0,127,.75)}}
.hero h1{
  font-size:2.35rem;line-height:1.25;font-weight:900;margin-bottom:18px;
  background:linear-gradient(120deg,#fff 30%,var(--accent) 70%,var(--accent-lime));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p{color:var(--text-soft);font-size:1.05rem;max-width:660px;margin:0 auto 28px}
.hero-cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--accent),#0090ff);
  color:#06121f;font-weight:800;font-size:1rem;
  padding:14px 30px;border-radius:999px;border:none;
  box-shadow:0 0 22px rgba(0,240,255,.4);
  transition:transform .2s,box-shadow .2s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 34px rgba(0,240,255,.65);color:#06121f}
.btn-outline{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.05);color:var(--text);font-weight:700;font-size:1rem;
  padding:14px 28px;border-radius:999px;border:1px solid var(--border);
  transition:all .2s;
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,240,255,.08)}
.hero-stats{display:flex;justify-content:center;gap:34px;flex-wrap:wrap}
.hero-stats .stat{text-align:center}
.hero-stats .stat b{display:block;font-size:1.5rem;color:var(--accent-lime);font-weight:900}
.hero-stats .stat span{font-size:.8rem;color:var(--text-dim)}
/* ============ SECTIONS ============ */
section{padding:70px 0}
.sec-head{max-width:640px;margin-bottom:38px}
.sec-head .tag{
  display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:800;
  color:var(--accent);letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px;
}
.sec-head .tag::before{content:"";width:26px;height:2px;background:var(--accent)}
.sec-head h2{font-size:1.75rem;font-weight:900;line-height:1.3;margin-bottom:12px}
.sec-head p{color:var(--text-soft);font-size:.98rem}
/* --- Story --- */
.story-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.story-text h2{font-size:1.75rem;font-weight:900;margin-bottom:16px}
.story-text p{color:var(--text-soft);margin-bottom:14px;font-size:.98rem}
.story-points{margin-top:22px;display:grid;gap:12px}
.story-points li{
  list-style:none;display:flex;gap:12px;align-items:flex-start;
  color:var(--text-soft);font-size:.94rem;
}
.story-points li i{color:var(--accent-lime);margin-top:4px}
.story-media{position:relative}
.story-media img{border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}
.story-badge{
  position:absolute;left:-14px;bottom:22px;
  background:rgba(11,26,48,.92);border:1px solid var(--border);
  border-radius:14px;padding:14px 18px;box-shadow:var(--glow);
}
.story-badge b{display:block;color:var(--accent);font-size:1.2rem;font-weight:900}
.story-badge span{font-size:.75rem;color:var(--text-dim)}
/* --- Game cards --- */
.games{background:linear-gradient(180deg,transparent,rgba(0,240,255,.04),transparent)}
.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.game-card{
  background:var(--bg-panel);border:1px solid var(--border-soft);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;
}
.game-card:hover{transform:translateY(-6px) scale(1.02);border-color:var(--accent);box-shadow:0 0 24px rgba(0,240,255,.25),var(--shadow)}
.game-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.game-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.game-card:hover .game-thumb img{transform:scale(1.07)}
.rank-badge{
  position:absolute;top:12px;left:12px;
  background:linear-gradient(135deg,var(--accent-lime),#8ef000);
  color:#06121f;font-weight:900;font-size:.78rem;
  padding:5px 12px;border-radius:999px;box-shadow:0 0 12px rgba(204,255,0,.5);
}
.hot-badge{
  position:absolute;top:12px;right:12px;
  background:#FF007F;color:#fff;font-weight:800;font-size:.68rem;
  padding:4px 10px;border-radius:999px;letter-spacing:.05em;
}
.game-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.game-body h3{font-size:1.05rem;font-weight:800}
.game-body p{color:var(--text-dim);font-size:.86rem;flex:1}
.game-meta{display:flex;gap:14px;font-size:.76rem;color:var(--text-dim)}
.game-meta i{color:var(--accent);margin-right:4px}
.game-body .btn-sm{
  align-self:flex-start;display:inline-flex;align-items:center;gap:8px;
  font-size:.84rem;font-weight:800;color:var(--accent);
  border:1px solid var(--border);border-radius:999px;padding:8px 18px;
  transition:all .2s;
}
.game-body .btn-sm:hover{background:var(--accent);color:#06121f;box-shadow:var(--glow)}
/* --- Timeline --- */
.timeline{position:relative;margin-left:14px;padding-left:34px;border-left:2px solid rgba(0,240,255,.25);display:grid;gap:30px}
.timeline-item{position:relative}
.timeline-item::before{
  content:"";position:absolute;left:-43px;top:4px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-deep);border:3px solid var(--accent);box-shadow:0 0 10px rgba(0,240,255,.6);
}
.timeline-item .time{font-size:.75rem;font-weight:800;color:var(--accent-lime);letter-spacing:.08em;text-transform:uppercase}
.timeline-item h3{font-size:1.05rem;font-weight:800;margin:6px 0 6px}
.timeline-item p{color:var(--text-soft);font-size:.92rem;max-width:640px}
/* --- Guide --- */
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.guide-step{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg-panel);border:1px solid var(--border-soft);
  border-radius:var(--radius);padding:22px;transition:border-color .2s,transform .2s;
}
.guide-step:hover{border-color:var(--accent);transform:translateY(-3px)}
.guide-step .num{
  flex:none;width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),#0052FF);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:1.05rem;color:#06121f;box-shadow:var(--glow);
}
.guide-step h3{font-size:1rem;font-weight:800;margin-bottom:6px}
.guide-step p{color:var(--text-dim);font-size:.88rem}
/* --- Benefits --- */
.benefit-split{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.benefit-media img{border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}
.benefit-list{display:grid;gap:18px;margin-top:22px}
.benefit-list li{list-style:none;display:flex;gap:14px}
.benefit-list li i{
  flex:none;width:38px;height:38px;border-radius:10px;
  background:rgba(0,240,255,.1);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:1rem;
}
.benefit-list h3{font-size:.98rem;font-weight:800;margin-bottom:4px}
.benefit-list p{color:var(--text-dim);font-size:.88rem}
/* --- Reviews (bubbles) --- */
.reviews{background:linear-gradient(180deg,transparent,rgba(204,255,0,.03),transparent)}
.bubble-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.bubble{
  background:var(--bg-panel);border:1px solid var(--border-soft);
  border-radius:20px 20px 20px 4px;padding:22px;
  transition:transform .2s,border-color .2s;
}
.bubble:nth-child(2){margin-top:26px}
.bubble:hover{transform:translateY(-4px);border-color:rgba(204,255,0,.4)}
.bubble .stars{color:var(--accent-warm);font-size:.8rem;margin-bottom:10px}
.bubble p{color:var(--text-soft);font-size:.9rem;margin-bottom:16px}
.bubble .who{display:flex;align-items:center;gap:10px}
.bubble .who .avatar{
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),#0052FF);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#06121f;font-size:.85rem;
}
.bubble .who b{font-size:.85rem;display:block}
.bubble .who span{font-size:.72rem;color:var(--text-dim)}
/* --- News --- */
.news-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:36px;align-items:start}
.news-list{display:grid;gap:4px}
.news-item{
  display:flex;align-items:center;gap:16px;
  padding:16px 14px;border-radius:var(--radius-sm);
  border-bottom:1px solid var(--border-soft);
  transition:background .2s;
}
.news-item:hover{background:rgba(0,240,255,.05)}
.news-item .dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(0,240,255,.7)}
.news-item .news-title{flex:1;min-width:0}
.news-item .news-title a{color:var(--text);font-weight:600;font-size:.95rem;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-item .news-title a:hover{color:var(--accent)}
.news-item .news-title small{color:var(--text-dim);font-size:.78rem;display:block;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-item time{flex:none;font-size:.76rem;color:var(--text-dim)}
.news-empty{padding:26px;text-align:center;color:var(--text-dim);border:1px dashed var(--border-soft);border-radius:var(--radius)}
.news-aside{
  background:var(--bg-panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px;position:sticky;top:90px;
}
.news-aside h3{font-size:1.05rem;font-weight:800;margin-bottom:12px}
.news-aside p{color:var(--text-dim);font-size:.88rem;margin-bottom:18px}
.news-aside .aside-links{display:grid;gap:10px}
.news-aside .aside-links a{
  display:flex;align-items:center;gap:10px;
  font-size:.88rem;font-weight:600;color:var(--text-soft);
  padding:11px 14px;border-radius:10px;border:1px solid var(--border-soft);
  transition:all .2s;
}
.news-aside .aside-links a:hover{border-color:var(--accent);color:var(--accent)}
/* --- FAQ --- */
.faq-wrap{max-width:780px}
.faq-item{border:1px solid var(--border-soft);border-radius:var(--radius-sm);margin-bottom:12px;background:var(--bg-panel);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:18px 20px;font-weight:700;font-size:.96rem;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);transition:transform .25s}
.faq-item[open] summary{color:var(--accent)}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 20px 18px;color:var(--text-soft);font-size:.9rem}
/* --- Subscribe CTA --- */
.subscribe{
  background:linear-gradient(135deg,rgba(0,240,255,.12),rgba(204,255,0,.08)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border-radius:24px;padding:56px 40px;text-align:center;
  border:1px solid var(--border);position:relative;overflow:hidden;
}
.subscribe::before{content:"";position:absolute;inset:0;background:rgba(8,18,34,.78)}
.subscribe > *{position:relative;z-index:2}
.subscribe h2{font-size:1.7rem;font-weight:900;margin-bottom:12px}
.subscribe p{color:var(--text-soft);max-width:560px;margin:0 auto 26px;font-size:.95rem}
.sub-form{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.sub-form input{
  background:rgba(255,255,255,.08);border:1px solid var(--border);
  border-radius:999px;padding:13px 22px;min-width:290px;
  color:var(--text);font-size:.92rem;outline:none;transition:border-color .2s,box-shadow .2s;
}
.sub-form input::placeholder{color:var(--text-dim)}
.sub-form input:focus{border-color:var(--accent);box-shadow:var(--glow)}
/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--border);
  background:#081222;padding:56px 0 110px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand p{color:var(--text-dim);font-size:.88rem;margin-top:14px;max-width:340px}
.footer-col h4{font-size:.85rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:var(--text-dim);font-size:.9rem}
.footer-col a:hover{color:var(--accent)}
.footer-trust{display:flex;gap:14px;flex-wrap:wrap;margin-top:18px}
.trust-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:700;color:var(--text-soft);
  border:1px solid var(--border-soft);border-radius:999px;padding:7px 14px;
}
.trust-pill i{color:var(--accent-lime)}
.footer-bottom{
  border-top:1px solid var(--border-soft);padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--text-dim);font-size:.8rem;
}
/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:150;
  width:56px;height:56px;border-radius:18px;
  background:rgba(0,0,0,.6);backdrop-filter:blur(8px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)),linear-gradient(135deg,var(--accent-lime),var(--accent));
  background-origin:border-box;background-clip:padding-box,border-box;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:1.35rem;
  box-shadow:0 0 15px rgba(0,240,255,.5);
  opacity:.65;transition:all .25s;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 28px rgba(0,240,255,.75);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:#FF007F;border:2px solid #081222;
  animation:pulseGlow 1.8s infinite;
}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .game-grid{grid-template-columns:repeat(2,1fr)}
  .bubble-grid{grid-template-columns:repeat(2,1fr)}
  .story-grid,.benefit-split{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:1fr}
  .news-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav{display:none}
  .bottom-tab{display:block}
  .hero{padding:56px 0 50px}
  .hero h1{font-size:1.7rem}
  section{padding:52px 0}
  .guide-grid{grid-template-columns:1fr}
  .fab{bottom:110px}
  .site-footer{padding-bottom:130px}
}
@media (max-width:520px){
  .game-grid{grid-template-columns:1fr}
  .bubble-grid{grid-template-columns:1fr}
  .bubble:nth-child(2){margin-top:0}
  .hero h1{font-size:1.45rem}
  .hero-stats{gap:22px}
  .sub-form input{min-width:100%;width:100%}
  .sec-head h2{font-size:1.4rem}
  .btn-signup{padding:9px 15px;font-size:.82rem}
  .btn-login{padding:8px 6px;font-size:.82rem}
  .logo span small{display:none}
  .logo{font-size:.85rem}
  .footer-grid{grid-template-columns:1fr}
  .news-item time{display:none}
  .subscribe{padding:42px 22px}
}

/* roulang page: article */
:root{
  --bg-deep:#0B1A30;
  --bg-deeper:#071224;
  --bg-panel:#102固542;
  --panel:#0F2440;
  --panel-2:#132C4E;
  --cyan:#00F0FF;
  --lime:#CCFF00;
  --text:#FFFFFF;
  --muted:#A6ACAF;
  --soft:#C9D6E5;
  --border:rgba(0,240,255,.18);
  --border-soft:rgba(255,255,255,.08);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 12px 34px rgba(0,0,0,.45);
  --glow:0 0 18px rgba(0,240,255,.28);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  background:var(--bg-deep);
  background-image:radial-gradient(1200px 600px at 80% -10%,rgba(0,240,255,.07),transparent 60%),radial-gradient(900px 500px at 5% 30%,rgba(204,255,0,.04),transparent 55%);
  color:var(--text);
  line-height:1.65;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--lime)}
button{font-family:inherit;cursor:pointer}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(7,18,36,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:70px}
.logo{display:flex;align-items:center;gap:11px;color:var(--text);font-weight:800;font-size:1.05rem;line-height:1.2;white-space:nowrap}
.logo:hover{color:var(--text)}
.logo small{display:block;font-size:.62rem;font-weight:600;color:var(--cyan);letter-spacing:.4px}
.logo-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#00394d,#0B1A30);
  border:1px solid var(--cyan);
  color:var(--cyan);font-size:1.25rem;
  box-shadow:var(--glow);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  color:var(--soft);font-weight:600;font-size:.92rem;
  padding:9px 14px;border-radius:999px;transition:all .2s ease;
}
.main-nav a:hover{color:var(--cyan);background:rgba(0,240,255,.08)}
.main-nav a.active{color:#04121F;background:linear-gradient(90deg,var(--cyan),#5ef7ff);box-shadow:var(--glow)}
.nav-auth{display:flex;align-items:center;gap:10px}
.btn-login{
  background:none;border:none;color:var(--soft);font-weight:600;font-size:.9rem;
  padding:9px 10px;border-radius:8px;transition:color .2s;
}
.btn-login:hover{color:var(--cyan)}
.btn-signup{
  background:linear-gradient(90deg,var(--lime),#9dff4d);
  color:#12200A;font-weight:800;font-size:.9rem;border:none;
  padding:10px 20px;border-radius:999px;
  box-shadow:0 0 16px rgba(204,255,0,.3);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(204,255,0,.5)}
.btn-signup:active{transform:scale(.96)}

/* ===== Bottom tab (mobile) ===== */
.bottom-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:rgba(7,18,36,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  padding:6px 8px calc(6px + env(safe-area-inset-bottom));
}
.bottom-tab a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  color:var(--muted);font-size:.62rem;font-weight:600;padding:6px 2px;border-radius:10px;
}
.bottom-tab a i{font-size:1.1rem}
.bottom-tab a.active,.bottom-tab a:hover{color:var(--cyan)}
.bottom-tab a.active{background:rgba(0,240,255,.08)}

/* ===== Page banner ===== */
.article-banner{
  margin-top:70px;
  background:linear-gradient(rgba(7,18,36,.82),rgba(7,18,36,.94)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--border);
  padding:52px 0 40px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.82rem;color:var(--muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb i{font-size:.6rem;color:var(--cyan)}
.article-banner h1{
  font-size:clamp(1.5rem,3.4vw,2.3rem);
  font-weight:800;line-height:1.3;max-width:900px;
  margin-bottom:16px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.78rem;font-weight:600;color:var(--soft);
  background:rgba(0,240,255,.07);
  border:1px solid var(--border);
  padding:6px 14px;border-radius:999px;
}
.meta-chip i{color:var(--cyan)}
.meta-chip.lime i{color:var(--lime)}

/* ===== Layout ===== */
.page-main{padding:44px 0 70px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}

/* ===== Article body ===== */
.article-card{
  background:var(--panel);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.article-inner{max-width:720px;padding:36px 34px 40px}
.article-content{color:var(--soft);font-size:1rem;line-height:1.7}
.article-content h2{
  color:var(--text);font-size:1.35rem;font-weight:800;
  margin:34px 0 14px;padding-left:14px;
  border-left:4px solid var(--cyan);line-height:1.35;
}
.article-content h3{color:var(--text);font-size:1.12rem;font-weight:700;margin:26px 0 12px}
.article-content h4{color:var(--text);font-size:1rem;font-weight:700;margin:20px 0 10px}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{margin:0 0 18px 22px}
.article-content li{margin-bottom:8px}
.article-content a{color:var(--cyan);border-bottom:1px dashed rgba(0,240,255,.4)}
.article-content a:hover{color:var(--lime);border-color:rgba(204,255,0,.5)}
.article-content img{border-radius:var(--radius-sm);margin:20px 0;border:1px solid var(--border-soft)}
.article-content blockquote{
  margin:22px 0;padding:16px 20px;
  background:rgba(0,240,255,.05);
  border-left:4px solid var(--lime);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text);font-style:italic;
}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.92rem}
.article-content th,.article-content td{border:1px solid var(--border-soft);padding:10px 12px;text-align:left}
.article-content th{background:rgba(0,240,255,.08);color:var(--text)}
.article-content strong{color:var(--text)}
.article-content code{background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:.88em;color:var(--lime)}

/* Not found */
.not-found{padding:70px 34px;text-align:center}
.not-found i{font-size:2.6rem;color:var(--cyan);margin-bottom:16px;display:block}
.not-found h2{font-size:1.3rem;margin-bottom:10px}
.not-found p{color:var(--muted);margin-bottom:22px}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  background:linear-gradient(90deg,var(--cyan),#5ef7ff);
  color:#04121F;font-weight:800;font-size:.95rem;
  padding:13px 28px;border-radius:999px;border:none;
  box-shadow:var(--glow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{transform:translateY(-2px);color:#04121F;box-shadow:0 0 26px rgba(0,240,255,.5)}
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  background:transparent;color:var(--cyan);font-weight:700;font-size:.92rem;
  padding:12px 26px;border-radius:999px;border:1px solid var(--cyan);
  transition:all .2s ease;
}
.btn-outline:hover{background:rgba(0,240,255,.1);color:var(--lime);border-color:var(--lime)}

/* Article footer nav */
.article-foot{
  border-top:1px solid var(--border-soft);
  padding:22px 34px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.article-foot .tags{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{
  font-size:.75rem;font-weight:600;color:var(--cyan);
  border:1px solid var(--border);border-radius:999px;padding:5px 13px;
  background:rgba(0,240,255,.05);
}
.tag-pill:hover{color:var(--lime);border-color:rgba(204,255,0,.4)}

/* ===== Sidebar ===== */
.sidebar{display:flex;flex-direction:column;gap:26px;position:sticky;top:92px}
.side-box{
  background:var(--panel);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow);
}
.side-box h3{
  font-size:1rem;font-weight:800;margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.side-box h3 i{color:var(--cyan)}
.side-cover{border-radius:var(--radius-sm);margin-bottom:14px;border:1px solid var(--border-soft)}
.side-box p{color:var(--muted);font-size:.87rem;margin-bottom:14px}
.side-links{list-style:none}
.side-links li{border-bottom:1px solid var(--border-soft)}
.side-links li:last-child{border-bottom:none}
.side-links a{
  display:flex;align-items:center;gap:11px;
  color:var(--soft);font-weight:600;font-size:.9rem;
  padding:12px 4px;transition:all .2s ease;
}
.side-links a i{color:var(--cyan);width:18px;text-align:center;font-size:.85rem;transition:transform .2s}
.side-links a:hover{color:var(--cyan);padding-left:8px}
.side-links a:hover i{transform:translateX(3px)}
.side-cta{
  background:linear-gradient(150deg,#0B2A45,#071A30);
  border:1px solid var(--border);
  text-align:left;
}
.side-cta .mini-note{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.mini-note span{
  font-size:.7rem;color:var(--muted);display:inline-flex;align-items:center;gap:5px;
  border:1px solid var(--border-soft);border-radius:999px;padding:4px 10px;
}
.mini-note i{color:var(--lime)}
.check-list{list-style:none;margin-bottom:6px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  color:var(--soft);font-size:.87rem;padding:7px 0;
}
.check-list i{color:var(--lime);margin-top:4px;font-size:.8rem}

/* ===== Below-article sections ===== */
.section-gap{margin-top:52px}
.section-head{margin-bottom:24px;max-width:640px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--lime);font-size:.75rem;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;
  margin-bottom:10px;
}
.section-head h2{font-size:clamp(1.3rem,2.6vw,1.7rem);font-weight:800;line-height:1.35}
.section-head p{color:var(--muted);margin-top:10px;font-size:.95rem}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  background:var(--panel);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-6px);box-shadow:0 0 22px rgba(0,240,255,.25);border-color:var(--border)}
.cat-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.cat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cat-card:hover .thumb img{transform:scale(1.06)}
.cat-card .thumb .badge{
  position:absolute;top:12px;left:12px;
  background:linear-gradient(90deg,var(--lime),#9dff4d);
  color:#12200A;font-size:.68rem;font-weight:800;letter-spacing:.5px;
  padding:4px 12px;border-radius:999px;
}
.cat-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cat-card .body h3{font-size:1.05rem;font-weight:800}
.cat-card .body p{color:var(--muted);font-size:.87rem;flex:1}
.cat-card .body .go{
  color:var(--cyan);font-weight:700;font-size:.87rem;
  display:inline-flex;align-items:center;gap:8px;
}
.cat-card .body .go i{transition:transform .2s}
.cat-card:hover .body .go{color:var(--lime)}
.cat-card:hover .body .go i{transform:translateX(4px)}

/* FAQ */
.faq-list{max-width:820px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--border-soft);
  border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-weight:700;font-size:.96rem;color:var(--text);
  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(--cyan)}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .answer{padding:0 20px 18px;color:var(--muted);font-size:.9rem}
.faq-item summary:hover{color:var(--cyan)}

/* CTA band */
.cta-band{
  margin-top:56px;
  background:linear-gradient(rgba(7,18,36,.86),rgba(7,18,36,.9)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:46px 30px;text-align:center;
}
.cta-band h2{font-size:clamp(1.35rem,2.8vw,1.8rem);font-weight:800;margin-bottom:12px}
.cta-band p{color:var(--soft);max-width:620px;margin:0 auto 24px;font-size:.96rem}
.cta-band .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{
  margin-top:70px;
  background:var(--bg-deeper);
  border-top:1px solid var(--border);
  padding:52px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand p{color:var(--muted);font-size:.88rem;margin:16px 0 18px;max-width:420px}
.footer-trust{display:flex;flex-wrap:wrap;gap:9px}
.trust-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.73rem;font-weight:600;color:var(--soft);
  border:1px solid var(--border-soft);border-radius:999px;padding:6px 13px;
}
.trust-pill i{color:var(--lime)}
.footer-col h4{
  font-size:.85rem;font-weight:800;letter-spacing:1px;text-transform:uppercase;
  color:var(--cyan);margin-bottom:16px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  border-top:1px solid var(--border-soft);
  padding-top:22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:var(--muted);font-size:.78rem;
}

/* ===== FAB ===== */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:90;
  width:56px;height:56px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(4,12,24,.65);backdrop-filter:blur(8px);
  border:2px solid transparent;
  background-clip:padding-box;
  color:var(--cyan);font-size:1.35rem;
  box-shadow:0 0 15px rgba(0,240,255,.5);
  opacity:.65;
  transition:all .22s ease;
  animation:fabPulse 3s ease-in-out infinite;
}
.fab-support::before{
  content:"";position:absolute;inset:-2px;border-radius:999px;z-index:-1;
  background:linear-gradient(135deg,var(--cyan),var(--lime));
}
.fab-support::after{
  content:"";position:absolute;inset:0;border-radius:999px;z-index:-1;
  background:rgba(4,12,24,.88);
}
.fab-support:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 26px rgba(0,240,255,.7);color:var(--lime)}
.fab-support:active{transform:scale(.95)}
.fab-support .dot{
  position:absolute;top:2px;right:2px;width:11px;height:11px;border-radius:999px;
  background:#FF007F;box-shadow:0 0 8px rgba(255,0,127,.8);
  animation:dotBlink 1.4s infinite;
}
@keyframes fabPulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.3}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar .side-box{flex:1 1 300px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .main-nav{display:none}
  .nav-wrap{height:62px;gap:12px}
  .article-banner{margin-top:62px;padding:40px 0 32px}
  .bottom-tab{display:flex}
  body{padding-bottom:64px}
  .article-inner{padding:28px 22px 32px}
  .article-foot{padding:18px 22px}
  .fab-support{bottom:110px}
}
@media (max-width:520px){
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .logo span small{display:none}
  .btn-signup{padding:9px 15px;font-size:.82rem}
  .btn-login{font-size:.82rem;padding:8px 6px}
  .article-banner h1{font-size:1.35rem}
  .article-inner{padding:24px 16px 28px}
  .cta-band{padding:36px 18px}
}

/* roulang page: category1 */
:root{
  --bg:#f4f7fc;--surface:#ffffff;--ink:#132038;--muted:#5a6b86;--line:#e2e9f4;
  --brand:#1868e6;--brand-dark:#0f47a6;--brand-soft:#e8f1ff;--accent:#00b8a9;
  --gold:#f5a623;--radius:16px;--radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(19,32,56,.06);
  --shadow:0 12px 32px rgba(19,32,56,.10);--shadow-lg:0 24px 60px rgba(19,32,56,.16);
  --sp:22px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none}
ul{list-style:none}
.container{width:min(1180px,92%);margin:0 auto}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.02rem;line-height:1.15}
.logo-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-size:1.15rem;box-shadow:var(--shadow-sm)}
.logo small{display:block;font-size:.68rem;font-weight:600;color:var(--muted)}
.main-nav{display:flex;gap:6px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:10px;font-weight:600;font-size:.94rem;color:var(--muted);transition:.2s}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.main-nav a.active{background:var(--brand);color:#fff}
.nav-auth{display:flex;align-items:center;gap:10px}
.btn-login{background:transparent;color:var(--ink);font-weight:600;padding:9px 12px;border-radius:10px;transition:.2s}
.btn-login:hover{color:var(--brand)}
.btn-signup{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-weight:700;padding:10px 20px;border-radius:10px;box-shadow:0 6px 16px rgba(24,104,230,.32);transition:.2s}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(24,104,230,.4)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;padding:13px 26px;border-radius:12px;transition:.22s;font-size:.98rem}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:0 8px 20px rgba(24,104,230,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(24,104,230,.42)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand-soft);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft)}

/* Hero */
.hero{position:relative;padding:64px 0 56px;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,71,166,.92),rgba(0,184,169,.78)),url('/assets/images/backpic/back-2.jpg') center/cover;z-index:-2}
.hero:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.12),transparent 55%);z-index:-1}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;color:#fff}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:7px 15px;border-radius:100px;font-size:.82rem;font-weight:600;margin-bottom:18px}
.hero h1{font-size:2.55rem;line-height:1.16;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.hero h1 span{color:#ffe08a}
.hero p.lead{font-size:1.08rem;opacity:.94;margin-bottom:26px;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.35);color:#fff}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.24)}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap}
.hero-stats div{}
.hero-stats strong{display:block;font-size:1.5rem;font-weight:800}
.hero-stats span{font-size:.82rem;opacity:.85}
.hero-stage{position:relative}
.hero-stage img{border-radius:var(--radius);box-shadow:var(--shadow-lg);border:5px solid rgba(255,255,255,.25)}
.hero-float{position:absolute;background:#fff;color:var(--ink);border-radius:14px;padding:12px 16px;box-shadow:var(--shadow);font-size:.85rem;font-weight:700;display:flex;align-items:center;gap:9px}
.hero-float i{color:var(--accent)}
.hero-float.f1{top:-16px;left:-14px}
.hero-float.f2{bottom:-16px;right:-10px}
.hero-float.f2 i{color:var(--gold)}

/* Sections */
section{padding:56px 0}
.sec-head{max-width:680px;margin-bottom:34px}
.sec-head.center{margin:0 auto 40px;text-align:center}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.sec-head h2{font-size:2rem;font-weight:800;line-height:1.2;letter-spacing:-.4px;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:1.02rem}

/* Value grid */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.value-card{background:var(--surface);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:.25s}
.value-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.value-ic{width:50px;height:50px;border-radius:13px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:1.3rem;margin-bottom:16px}
.value-card h3{font-size:1.08rem;margin-bottom:8px}
.value-card p{color:var(--muted);font-size:.92rem}

/* Screens carousel */
.screens{background:linear-gradient(180deg,#fff,#eef4fd)}
.screen-track{display:flex;gap:20px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory}
.screen-track::-webkit-scrollbar{height:8px}
.screen-track::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.screen-item{flex:0 0 300px;scroll-snap-align:start;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.screen-item img{height:180px;object-fit:cover;width:100%}
.screen-body{padding:16px 18px}
.screen-body .tag{display:inline-block;font-size:.7rem;font-weight:800;color:#fff;background:var(--accent);padding:3px 10px;border-radius:100px;margin-bottom:8px}
.screen-body .tag.hot{background:var(--gold)}
.screen-body h4{font-size:1.02rem;margin-bottom:5px}
.screen-body p{font-size:.86rem;color:var(--muted)}

/* Requirements table */
.req-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.req-list{display:flex;flex-direction:column;gap:14px}
.req-row{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow-sm)}
.req-row i{color:var(--brand);font-size:1.15rem;margin-top:3px}
.req-row strong{display:block;font-size:.98rem}
.req-row span{font-size:.88rem;color:var(--muted)}
.req-media{position:relative}
.req-media img{border-radius:var(--radius);box-shadow:var(--shadow)}
.req-note{background:var(--brand-soft);border-left:4px solid var(--brand);padding:16px 18px;border-radius:0 12px 12px 0;margin-top:18px;font-size:.9rem;color:var(--brand-dark)}

/* Steps */
.steps{background:var(--ink);color:#fff}
.steps .sec-head h2{color:#fff}
.steps .sec-head p{color:#a9bad6}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:26px 22px;position:relative}
.step-card:before{counter-increment:s;content:counter(s,decimal-leading-zero);font-size:1.5rem;font-weight:800;color:var(--accent);display:block;margin-bottom:12px}
.step-card h4{font-size:1.05rem;margin-bottom:8px}
.step-card p{font-size:.9rem;color:#b6c5de}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.stars{color:var(--gold);margin-bottom:12px;font-size:.92rem}
.review-card p{font-size:.95rem;margin-bottom:16px}
.review-user{display:flex;align-items:center;gap:12px}
.review-user .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:800}
.review-user strong{display:block;font-size:.92rem}
.review-user span{font-size:.8rem;color:var(--muted)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-q{width:100%;text-align:left;background:none;padding:18px 22px;font-weight:700;font-size:1rem;display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--ink)}
.faq-q i{color:var(--brand);transition:.25s}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:300px;padding-bottom:20px}
.faq-a p{color:var(--muted);font-size:.94rem}

/* CTA */
.cta{padding:0 0 66px}
.cta-box{background:linear-gradient(120deg,var(--brand-dark),var(--accent));border-radius:26px;padding:56px 40px;text-align:center;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-box:before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.jpg') center/cover;opacity:.14}
.cta-box>*{position:relative}
.cta-box h2{font-size:2rem;font-weight:800;margin-bottom:12px}
.cta-box p{opacity:.94;max-width:560px;margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-box .btn-ghost{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.4)}

/* Footer */
.site-footer{background:#0c1526;color:#c3cee0;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo small{color:#8497b6}
.footer-brand p{font-size:.9rem;color:#9fb0cc;margin-bottom:18px;max-width:420px}
.footer-trust{display:flex;flex-wrap:wrap;gap:10px}
.trust-pill{font-size:.76rem;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);padding:6px 12px;border-radius:100px;color:#c3cee0}
.trust-pill i{color:var(--accent)}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:.9rem;color:#9fb0cc;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.82rem;color:#7d8 eac;color:#7d8eac}

/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:90;width:60px;height:60px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:grid;place-items:center;font-size:1.4rem;box-shadow:0 10px 26px rgba(24,104,230,.45);opacity:.9;transition:.25s;text-decoration:none}
.fab:hover{opacity:1;transform:scale(1.08)}
.fab .dot{position:absolute;top:8px;right:9px;width:11px;height:11px;background:#ff4d4d;border-radius:50%;border:2px solid #fff;animation:pulse 1.4s infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.6}}

/* Mobile bottom tab */
.tabbar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:95;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(19,32,56,.08);padding:8px 4px}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:.66rem;color:var(--muted);padding:5px 2px;font-weight:600}
.tabbar a i{font-size:1.15rem}
.tabbar a.active{color:var(--brand)}

@media(max-width:1024px){
  .value-grid,.step-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2.15rem}
}
@media(max-width:900px){
  .main-nav{display:none}
  .req-wrap{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero{padding:44px 0 40px}
  .footer-grid{grid-template-columns:1fr}
  .tabbar{display:flex}
  body{padding-bottom:66px}
  .fab{bottom:82px}
}
@media(max-width:520px){
  .value-grid,.step-grid,.review-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.85rem}
  .sec-head h2,.cta-box h2{font-size:1.6rem}
  .nav-auth .btn-login{display:none}
  .cta-box{padding:40px 22px}
}

/* roulang page: category2 */
:root{
  --blue:#0b63d6;
  --blue-dark:#084a9f;
  --blue-deep:#0a2f5c;
  --cyan:#0aa6c9;
  --gold:#f5a623;
  --bg:#f4f8fc;
  --bg-soft:#eaf2fb;
  --white:#ffffff;
  --ink:#12263f;
  --ink-soft:#4b617c;
  --ink-mute:#7b8fa4;
  --line:#dce7f3;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(11,99,214,.10);
  --shadow-lg:0 22px 55px rgba(10,47,92,.16);
  --grad:linear-gradient(135deg,#0b63d6 0%,#0aa6c9 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"Noto Sans",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none;transition:color .2s}
a:hover{color:var(--blue-dark)}
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 24px}
.section{padding:88px 0}
.section-head{max-width:640px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);background:var(--bg-soft);border:1px solid var(--line);padding:6px 14px;border-radius:999px;margin-bottom:16px}
.section-head h2{font-size:2rem;font-weight:800;line-height:1.25;margin-bottom:12px}
.section-head p{color:var(--ink-soft);font-size:1.02rem}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 2px 18px rgba(10,47,92,.06)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--ink);font-size:1.02rem;line-height:1.15}
.logo:hover{color:var(--blue)}
.logo small{display:block;font-size:.66rem;font-weight:600;color:var(--ink-mute);letter-spacing:.03em}
.logo-icon{width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.15rem;box-shadow:0 6px 16px rgba(11,99,214,.35)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{padding:9px 16px;border-radius:999px;font-weight:600;font-size:.94rem;color:var(--ink-soft)}
.main-nav a:hover{color:var(--blue);background:var(--bg-soft)}
.main-nav a.active{color:#fff;background:var(--blue);box-shadow:0 6px 16px rgba(11,99,214,.3)}
.nav-auth{display:flex;align-items:center;gap:10px}
.btn-login{color:var(--blue);font-weight:700;font-size:.92rem;padding:9px 14px;border-radius:999px;transition:background .2s}
.btn-login:hover{background:var(--bg-soft)}
.btn-signup{background:var(--grad);color:#fff;font-weight:700;font-size:.92rem;padding:10px 22px;border-radius:999px;box-shadow:0 8px 20px rgba(11,99,214,.35);transition:transform .2s,box-shadow .2s}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,99,214,.45)}
.btn-signup:active{transform:translateY(0) scale(.97)}

/* ===== Mobile bottom tabs ===== */
.mobile-tabs{display:none;position:fixed;left:0;right:0;bottom:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-top:1px solid var(--line);box-shadow:0 -4px 20px rgba(10,47,92,.08);padding:6px 8px calc(6px + env(safe-area-inset-bottom))}
.mobile-tabs a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 4px;font-size:.66rem;font-weight:600;color:var(--ink-mute);border-radius:12px}
.mobile-tabs a i{font-size:1.15rem}
.mobile-tabs a.active{color:var(--blue);background:var(--bg-soft)}

/* ===== Hero ===== */
.hero{position:relative;padding:150px 0 96px;background:linear-gradient(rgba(10,47,92,.82),rgba(11,99,214,.72)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:7px 16px;border-radius:999px;font-size:.82rem;font-weight:700;margin-bottom:20px}
.hero-badge i{color:var(--gold)}
.hero h1{font-size:2.6rem;font-weight:800;line-height:1.18;margin-bottom:18px}
.hero h1 .hl{color:#8fd8ff}
.hero-lead{font-size:1.08rem;color:#dcebff;max-width:520px;margin-bottom:28px}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--blue-dark);font-weight:800;font-size:1rem;padding:15px 30px;border-radius:14px;box-shadow:0 14px 34px rgba(0,0,0,.25);transition:transform .2s,box-shadow .2s}
.btn-primary:hover{transform:translateY(-3px);color:var(--blue);box-shadow:0 18px 40px rgba(0,0,0,.3)}
.btn-primary:active{transform:translateY(0) scale(.97)}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:.98rem;padding:15px 26px;border-radius:14px;border:1.5px solid rgba(255,255,255,.55);transition:background .2s,transform .2s}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.hero-stats .stat b{display:block;font-size:1.5rem;font-weight:800;color:#fff}
.hero-stats .stat span{font-size:.82rem;color:#bcd9ff}

/* Hero compare cards */
.compare-stack{display:grid;gap:16px}
.compare-card{background:rgba(255,255,255,.96);color:var(--ink);border-radius:var(--radius);padding:20px 22px;display:flex;align-items:center;gap:18px;box-shadow:var(--shadow-lg);transition:transform .25s}
.compare-card:hover{transform:translateY(-4px)}
.compare-card .rank{width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:var(--bg-soft);color:var(--blue);font-weight:800;font-size:1.1rem;display:flex;align-items:center;justify-content:center}
.compare-card .info{flex:1;min-width:0}
.compare-card .info h3{font-size:1.02rem;font-weight:800;margin-bottom:3px}
.compare-card .info p{font-size:.82rem;color:var(--ink-soft)}
.compare-card .score{text-align:right}
.compare-card .score b{display:block;font-size:1.1rem;color:var(--blue);font-weight:800}
.compare-card .score span{font-size:.72rem;color:var(--ink-mute)}
.compare-card.featured{position:relative;background:#fff;border:2px solid var(--gold);box-shadow:0 24px 60px rgba(0,0,0,.3)}
.compare-card.featured .rank{background:linear-gradient(135deg,#f5a623,#ffcf6b);color:#7a4b00}
.compare-card.featured::before{content:"ĐỀ XUẤT SỐ 1";position:absolute;top:-12px;left:20px;background:linear-gradient(135deg,#f5a623,#ffb84d);color:#5c3900;font-size:.66rem;font-weight:800;letter-spacing:.06em;padding:4px 12px;border-radius:999px;box-shadow:0 6px 14px rgba(245,166,35,.4)}

/* ===== Value grid ===== */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.value-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.value-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.value-item .vi-icon{width:52px;height:52px;border-radius:14px;background:var(--bg-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:18px}
.value-item h3{font-size:1.08rem;font-weight:800;margin-bottom:8px}
.value-item p{font-size:.92rem;color:var(--ink-soft)}

/* ===== Game list ===== */
.games-section{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.games-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.game-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.game-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.game-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.game-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.game-card:hover .game-thumb img{transform:scale(1.06)}
.game-tag{position:absolute;top:12px;left:12px;background:var(--grad);color:#fff;font-size:.68rem;font-weight:800;letter-spacing:.05em;padding:5px 12px;border-radius:999px;box-shadow:0 4px 12px rgba(11,99,214,.4)}
.game-tag.gold{background:linear-gradient(135deg,#f5a623,#ffb84d);color:#5c3900}
.game-body{padding:22px;display:flex;flex-direction:column;flex:1}
.game-body h3{font-size:1.08rem;font-weight:800;margin-bottom:8px}
.game-body p{font-size:.9rem;color:var(--ink-soft);margin-bottom:16px;flex:1}
.game-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.meta-chip{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;color:var(--blue-deep);background:var(--bg-soft);border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.meta-chip i{color:var(--cyan)}
.game-body .btn-download{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--blue);color:#fff;font-weight:700;font-size:.9rem;padding:12px 18px;border-radius:12px;transition:background .2s,transform .2s}
.game-body .btn-download:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}

/* ===== Requirements ===== */
.req-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.req-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.req-media img{width:100%;height:100%;object-fit:cover}
.req-list{display:grid;gap:18px}
.req-row{display:flex;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;box-shadow:var(--shadow)}
.req-row i{width:40px;height:40px;flex:0 0 40px;border-radius:10px;background:var(--bg-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:1rem}
.req-row h4{font-size:.98rem;font-weight:800;margin-bottom:3px}
.req-row p{font-size:.86rem;color:var(--ink-soft)}

/* ===== Steps ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-size:2rem;font-weight:800;color:var(--bg-soft);-webkit-text-stroke:1.5px var(--blue);position:absolute;top:16px;right:20px;line-height:1}
.step h3{font-size:1rem;font-weight:800;margin:14px 0 8px}
.step p{font-size:.87rem;color:var(--ink-soft)}
.step .st-icon{width:46px;height:46px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem;box-shadow:0 8px 18px rgba(11,99,214,.3)}

/* ===== Reviews ===== */
.reviews-section{background:var(--bg-soft)}
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.review-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.review-stars{color:var(--gold);font-size:.86rem;margin-bottom:12px;letter-spacing:2px}
.review-card blockquote{font-size:.94rem;color:var(--ink-soft);margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px}
.review-user .avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.review-user b{display:block;font-size:.9rem}
.review-user span{font-size:.76rem;color:var(--ink-mute)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-weight:700;font-size:.98rem;cursor:pointer;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;font-size:.78rem;color:var(--blue);transition:transform .25s}
.faq-item[open] summary{color:var(--blue)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 20px;font-size:.92rem;color:var(--ink-soft)}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(rgba(8,52,110,.9),rgba(11,99,214,.85)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;color:#fff;text-align:center;border-radius:24px;padding:72px 40px;box-shadow:var(--shadow-lg)}
.cta-section h2{font-size:2rem;font-weight:800;margin-bottom:14px}
.cta-section p{color:#d9ebff;max-width:560px;margin:0 auto 30px;font-size:1.02rem}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{background:var(--blue-deep);color:#c6d9f0;padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;padding-bottom:44px}
.site-footer .logo{color:#fff;margin-bottom:16px}
.site-footer .logo small{color:#8fb4de}
.footer-brand p{font-size:.9rem;color:#a8c4e4;margin-bottom:18px}
.footer-trust{display:flex;flex-wrap:wrap;gap:8px}
.trust-pill{display:inline-flex;align-items:center;gap:7px;font-size:.74rem;font-weight:700;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#dbeafe;padding:6px 12px;border-radius:999px}
.trust-pill i{color:#8fd8ff}
.footer-col h4{color:#fff;font-size:.94rem;font-weight:800;margin-bottom:16px;letter-spacing:.03em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:#a8c4e4;font-size:.9rem}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.8rem;color:#8fb4de}

/* ===== FAB ===== */
.fab-support{position:fixed;left:16px;bottom:96px;z-index:90;width:56px;height:56px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.35rem;box-shadow:0 10px 28px rgba(11,99,214,.45);opacity:.85;animation:fabFloat 3s ease-in-out infinite;transition:transform .25s,opacity .25s}
.fab-support:hover{opacity:1;transform:scale(1.1);color:#fff}
.fab-support:active{transform:scale(.94)}
.fab-support .fab-dot{position:absolute;top:4px;right:4px;width:11px;height:11px;border-radius:50%;background:#ff3b30;border:2px solid #fff;animation:dotBlink 1.4s infinite}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .hero h1{font-size:2.15rem}
  .hero-grid{gap:40px}
  .value-grid,.games-grid,.reviews-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .nav-wrap{height:64px;gap:14px}
  .main-nav{display:none}
  .mobile-tabs{display:flex}
  body{padding-bottom:70px}
  .hero{padding:120px 0 70px}
  .hero-grid{grid-template-columns:1fr}
  .req-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .fab-support{bottom:110px}
}
@media (max-width:520px){
  .hero h1{font-size:1.75rem}
  .section-head h2{font-size:1.55rem}
  .value-grid,.games-grid,.reviews-grid,.steps-grid,.footer-grid{grid-template-columns:1fr}
  .compare-card{padding:16px}
  .cta-section{padding:52px 22px}
  .btn-primary,.btn-ghost{width:100%;justify-content:center}
  .btn-signup{padding:9px 16px;font-size:.84rem}
  .btn-login{padding:8px 10px;font-size:.84rem}
  .logo span small{display:none}
}

/* roulang page: category3 */
:root{
  --primary:#0b5ed7;
  --primary-dark:#0a3d8f;
  --navy:#0b2545;
  --accent:#f5a623;
  --accent-deep:#e0851a;
  --teal:#0e9aa7;
  --bg:#f4f8fc;
  --bg-soft:#eaf2fa;
  --surface:#ffffff;
  --text:#1c2b3a;
  --text-soft:#5a6b7f;
  --border:#dde7f1;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 28px rgba(11,37,69,.08);
  --shadow-hover:0 14px 38px rgba(11,37,69,.14);
  --space:clamp(56px,8vw,96px);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
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(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 14px rgba(11,37,69,.06);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:1.05rem;line-height:1.15}
.logo small{display:block;font-size:.66rem;font-weight:600;color:var(--text-soft);letter-spacing:.4px}
.logo-icon{
  width:42px;height:42px;border-radius:12px;flex:0 0 42px;
  background:linear-gradient(135deg,var(--primary),var(--teal));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.15rem;
  box-shadow:0 4px 12px rgba(11,94,215,.32);
}
.main-nav{display:flex;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 15px;border-radius:999px;font-weight:600;font-size:.94rem;
  color:var(--text-soft);transition:all .2s ease;
}
.main-nav a:hover{color:var(--primary);background:var(--bg-soft)}
.main-nav a.active{color:#fff;background:var(--primary);box-shadow:0 4px 12px rgba(11,94,215,.3)}
.nav-auth{display:flex;align-items:center;gap:10px}
.btn-login{color:var(--navy);font-weight:700;font-size:.92rem;padding:9px 12px;border-radius:8px;transition:color .2s}
.btn-login:hover{color:var(--primary)}
.btn-signup{
  background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff;
  font-weight:700;font-size:.92rem;padding:10px 20px;border-radius:999px;
  box-shadow:0 4px 14px rgba(245,166,35,.4);transition:transform .2s,box-shadow .2s;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,166,35,.5)}
.btn-signup:active{transform:translateY(0) scale(.97)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-weight:700;
  padding:14px 28px;border-radius:999px;font-size:1rem;transition:all .22s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(11,94,215,.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(11,94,215,.42)}
.btn-primary:active{transform:translateY(0) scale(.97)}
.btn-gold{background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff;box-shadow:0 6px 18px rgba(245,166,35,.4)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(245,166,35,.5)}
.btn-ghost{border:2px solid rgba(255,255,255,.65);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14)}

/* ===== Hero banner ===== */
.page-hero{
  margin-top:70px;position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(rgba(8,32,64,.82),rgba(8,32,64,.9)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  padding:calc(var(--space) * .9) 0;
}
.hero-inner{max-width:720px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:#a9c4e4;margin-bottom:18px}
.breadcrumb a{color:#cfe0f5}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:.65rem}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:rgba(245,166,35,.16);
  border:1px solid rgba(245,166,35,.5);color:#ffd27a;
  padding:7px 16px;border-radius:999px;font-size:.82rem;font-weight:700;margin-bottom:18px;
}
.page-hero h1{font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.25;font-weight:800;margin-bottom:16px}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.page-hero p{color:#c8d9ee;font-size:1.05rem;max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:36px;flex-wrap:wrap}
.hero-stat strong{display:block;font-size:1.65rem;font-weight:800;color:var(--accent)}
.hero-stat span{font-size:.86rem;color:#a9c4e4}

/* ===== Section base ===== */
.section{padding:var(--space) 0}
.section-alt{background:var(--surface)}
.section-head{max-width:640px;margin-bottom:44px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:1.2px;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:26px;height:3px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--navy);line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--text-soft);font-size:1rem}

/* ===== Tips grid ===== */
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.tip-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s;
}
.tip-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.tip-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;color:#fff;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary),var(--teal));
  box-shadow:0 5px 14px rgba(11,94,215,.28);
}
.tip-card:nth-child(2) .tip-icon{background:linear-gradient(135deg,var(--accent),var(--accent-deep));box-shadow:0 5px 14px rgba(245,166,35,.32)}
.tip-card:nth-child(3) .tip-icon{background:linear-gradient(135deg,var(--teal),#0b6e78);box-shadow:0 5px 14px rgba(14,154,167,.3)}
.tip-card:nth-child(5) .tip-icon{background:linear-gradient(135deg,#7048e8,#5028c8);box-shadow:0 5px 14px rgba(112,72,232,.3)}
.tip-card:nth-child(6) .tip-icon{background:linear-gradient(135deg,#d6336c,#a61e4d);box-shadow:0 5px 14px rgba(214,51,108,.3)}
.tip-card h3{font-size:1.08rem;color:var(--navy);margin-bottom:10px}
.tip-card p{color:var(--text-soft);font-size:.93rem}

/* ===== Boss section ===== */
.boss-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.boss-media{position:relative}
.boss-media img{border-radius:var(--radius);box-shadow:var(--shadow-hover)}
.boss-media .media-badge{
  position:absolute;top:16px;left:16px;background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  color:#fff;font-weight:800;font-size:.8rem;padding:8px 16px;border-radius:999px;
  box-shadow:0 4px 12px rgba(245,166,35,.45);
}
.boss-list{display:flex;flex-direction:column;gap:0}
.boss-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--border)}
.boss-item:last-child{border-bottom:none}
.boss-rank{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:var(--bg-soft);color:var(--primary);font-weight:800;font-size:1.05rem;
  display:flex;align-items:center;justify-content:center;
}
.boss-item h3{font-size:1.02rem;color:var(--navy);margin-bottom:5px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.boss-item p{color:var(--text-soft);font-size:.92rem}
.badge{
  display:inline-block;font-size:.7rem;font-weight:800;padding:3px 10px;border-radius:999px;letter-spacing:.4px;
}
.badge-gold{background:#fff4dd;color:#b06d00;border:1px solid #f5d9a3}
.badge-red{background:#ffe6ea;color:#c2183b;border:1px solid #f5b3c0}
.badge-blue{background:#e3efff;color:var(--primary-dark);border:1px solid #bcd6f5}

/* ===== Steps ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step-item{
  position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow);
  transition:transform .22s,box-shadow .22s;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;background:var(--primary);color:#fff;
  font-weight:800;font-size:.95rem;margin-bottom:16px;box-shadow:0 4px 12px rgba(11,94,215,.3);
}
.step-item h3{font-size:1rem;color:var(--navy);margin-bottom:8px}
.step-item p{font-size:.9rem;color:var(--text-soft)}

/* ===== Coin table ===== */
.coin-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.coin-media img{border-radius:var(--radius);box-shadow:var(--shadow-hover)}
.coin-table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.coin-table th{
  background:var(--navy);color:#fff;text-align:left;font-size:.85rem;
  padding:14px 18px;letter-spacing:.3px;
}
.coin-table td{padding:14px 18px;border-bottom:1px solid var(--border);font-size:.92rem;color:var(--text)}
.coin-table tr:last-child td{border-bottom:none}
.coin-table tr:hover td{background:var(--bg-soft)}
.coin-table .hl{font-weight:800;color:var(--primary)}

/* ===== Reviews ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.review-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.review-stars{color:var(--accent);font-size:.88rem;margin-bottom:12px;letter-spacing:2px}
.review-card p{color:var(--text);font-size:.94rem;margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{
  width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--teal));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.95rem;
}
.review-user strong{display:block;font-size:.92rem;color:var(--navy)}
.review-user span{font-size:.8rem;color:var(--text-soft)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
  margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-weight:700;color:var(--navy);font-size:1rem;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--primary);transition:transform .25s;flex:0 0 auto}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-item .faq-body{padding:0 24px 20px;color:var(--text-soft);font-size:.94rem}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);
  background:linear-gradient(rgba(9,42,84,.88),rgba(9,42,84,.92)),url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  color:#fff;text-align:center;padding:64px clamp(24px,6vw,72px);
  box-shadow:var(--shadow-hover);
}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:14px}
.cta-band p{color:#c8d9ee;max-width:560px;margin:0 auto 30px;font-size:1rem}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{background:var(--navy);color:#c3d4e8;padding:64px 0 0;margin-top:var(--space)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;padding-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo small{color:#8fa9c9}
.footer-brand p{font-size:.92rem;color:#a9c0dc;margin-bottom:18px}
.footer-trust{display:flex;gap:10px;flex-wrap:wrap}
.trust-pill{
  display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  padding:7px 13px;border-radius:999px;color:#d8e5f4;
}
.trust-pill i{color:var(--accent)}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:#a9c0dc;font-size:.92rem;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:.82rem;color:#8fa9c9;
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:90;
  width:58px;height:58px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  color:#fff;font-size:1.35rem;display:flex;align-items:center;justify-content:center;
  border:3px solid #ffe1a8;box-shadow:0 6px 22px rgba(245,166,35,.5);
  opacity:.85;animation:fabFloat 2.8s ease-in-out infinite;
  transition:transform .22s,opacity .22s;
}
.fab:hover{transform:scale(1.12);opacity:1}
.fab:hover i{transform:rotate(360deg)}
.fab i{transition:transform .5s ease}
.fab:active{transform:scale(.94) translateY(2px)}
.fab .fab-dot{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
  background:#e0263f;border:2px solid #fff;animation:blink 1.4s infinite;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== Bottom tabs (mobile) ===== */
.bottom-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;
  background:#fff;border-top:1px solid var(--border);
  box-shadow:0 -4px 18px rgba(11,37,69,.08);
}
.bottom-tabs a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:9px 4px 10px;font-size:.66rem;font-weight:700;color:var(--text-soft);
}
.bottom-tabs a i{font-size:1.1rem}
.bottom-tabs a.active{color:var(--primary)}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .tips-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .boss-layout,.coin-layout{grid-template-columns:1fr;gap:36px}
  .boss-media{order:-1}
}
@media (max-width:768px){
  .main-nav{display:none}
  .bottom-tabs{display:flex}
  body{padding-bottom:64px}
  .nav-wrap{height:62px;gap:14px}
  .nav-auth{margin-left:auto}
  .page-hero{margin-top:62px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .review-grid{grid-template-columns:1fr}
  .fab{bottom:84px}
}
@media (max-width:520px){
  .tips-grid,.steps-grid{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .btn{padding:13px 22px;font-size:.94rem}
  .btn-login{padding:8px 8px;font-size:.85rem}
  .btn-signup{padding:9px 15px;font-size:.85rem}
  .logo span small{display:none}
  .coin-table th,.coin-table td{padding:11px 12px;font-size:.84rem}
  .footer-bottom{flex-direction:column}
}