/* roulang page: index */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:#0b1a35;
  --glass:rgba(11,26,53,.62);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.36);
  --gold:#fbbf24;
  --green:#34d399;
  --pink:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --pill:999px;
  --shadow-sm:0 6px 18px rgba(2,8,23,.5);
  --shadow:0 18px 44px rgba(2,8,23,.62);
  --glow-blue:0 0 22px rgba(37,99,235,.5);
  --glow-cyan:0 0 26px rgba(56,189,248,.42);
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 500px at 92% 6%,rgba(56,189,248,.14),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d1f 42%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--cyan);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0 0 .65rem;font-weight:800;line-height:1.24;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(1.85rem,3.6vw,3rem);font-weight:900;line-height:1.16;}
h2{font-size:clamp(1.45rem,2.5vw,2.15rem);font-weight:800;}
h3{font-size:clamp(1.08rem,1.5vw,1.3rem);font-weight:700;}
h4{font-size:1rem;font-weight:700;}
p{margin:0 0 1rem;color:var(--muted);line-height:1.68;}
p:last-child{margin-bottom:0;}
strong{color:var(--text);font-weight:700;}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(37,99,235,.5);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.narrow{max-width:920px;margin:0 auto;}

section{position:relative;padding:78px 0;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.85) 0%,rgba(3,7,18,.2) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:56px 0;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:18px;
}
.eyebrow i{font-size:.8rem;}

.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head.left{text-align:left;margin-left:0;}
.sec-head .kicker{
  display:block;font-size:.76rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--holo);margin-bottom:10px;
}
.sec-head p{font-size:1.02rem;}

.glass{
  background:linear-gradient(160deg,rgba(13,30,60,.9) 0%,rgba(6,14,32,.86) 100%);
  border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-sm);
  transition:border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.glass:hover{border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow-cyan);transform:translateY(-4px);}
.chamfer{clip-path:polygon(18px 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%,0 18px);border-radius:0;}
.pad{padding:26px;}
.pad-lg{padding:34px;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;line-height:1.2;}
.btn i{font-size:.92rem;}
.btn-glow{background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);color:#04101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 10px 26px rgba(37,99,235,.45);}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 16px 34px rgba(56,189,248,.5);}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan);transform:translateY(-2px);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn-block{width:100%;}
.btn-sm{padding:9px 18px;font-size:.86rem;}

.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);
  background:rgba(37,99,235,.16);border:1px solid rgba(56,189,248,.34);color:var(--cyan);
}
.badge-tag.gold{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--gold);}
.badge-tag.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.36);color:var(--green);}
.badge-tag.pink{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.36);color:#fb7185;}

/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04101f;font-size:1.05rem;
  box-shadow:0 0 18px rgba(56,189,248,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.02rem;font-weight:900;letter-spacing:.06em;color:#fff;}
.brand-text small{font-size:.68rem;color:var(--muted);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;padding:9px 15px;border-radius:var(--pill);font-size:.9rem;font-weight:600;color:var(--muted-2);}
.main-nav a:hover{color:#fff;background:rgba(56,189,248,.08);}
.main-nav a.active{color:#fff;background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 1px var(--line-strong);}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{background:rgba(56,189,248,.08);border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1rem;}
.mobile-nav{border-top:1px solid var(--line);background:rgba(5,13,31,.98);}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:10px;padding-bottom:16px;}
.mobile-nav a{padding:12px 4px;font-size:.95rem;font-weight:600;color:var(--muted-2);border-bottom:1px solid rgba(56,189,248,.08);}
.mobile-nav a.active{color:var(--cyan);}

/* hero */
.hero{padding:64px 0 72px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.24;filter:saturate(.85) blur(1px);}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.68) 0%,rgba(3,7,18,.9) 55%,rgba(3,7,18,1) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;}
.hero-lead{font-size:1.05rem;color:var(--muted-2);max-width:640px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;border-top:1px solid var(--line);padding-top:22px;}
.hero-stats .stat-num{font-size:1.18rem;font-weight:900;color:#fff;display:block;letter-spacing:-.01em;}
.hero-stats .stat-lb{font-size:.76rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;}
.feature-card{overflow:hidden;padding:0;}
.feature-card .fc-img{position:relative;height:196px;overflow:hidden;}
.feature-card .fc-img img{width:100%;height:100%;object-fit:cover;}
.feature-card .fc-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.15),rgba(6,14,32,.92));}
.feature-card .fc-badge{position:absolute;top:14px;left:14px;z-index:3;}
.feature-card .fc-body{padding:22px 24px 26px;}
.feature-card .fc-body h3{font-size:1.08rem;}
.fc-list{margin-top:16px;border-top:1px solid var(--line);}
.fc-list li{display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px dashed rgba(56,189,248,.14);font-size:.88rem;color:var(--muted-2);}
.fc-list li:last-child{border-bottom:0;}
.fc-list i{color:var(--cyan);margin-top:4px;font-size:.8rem;}

/* trust strip */
.trust-strip{padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(8,18,41,.9),rgba(3,7,18,.7));}
.trust-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.trust-item{display:flex;align-items:center;gap:12px;font-size:.88rem;font-weight:600;color:var(--muted-2);}
.trust-item i{width:38px;height:38px;flex:0 0 38px;border-radius:10px;display:grid;place-items:center;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);color:var(--cyan);font-size:.9rem;}

/* countdown */
.cd-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:38px;align-items:center;}
.cd-boxes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;}
.cd-box{text-align:center;padding:18px 8px;background:linear-gradient(160deg,rgba(13,30,60,.92),rgba(6,14,32,.9));
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);}
.cd-box span{display:block;font-size:clamp(1.4rem,3vw,2.1rem);font-weight:900;color:#fff;
  text-shadow:0 0 18px rgba(56,189,248,.6);font-variant-numeric:tabular-nums;}
.cd-box small{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);}
.cd-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative;}
.cd-img img{width:100%;height:100%;object-fit:cover;min-height:230px;opacity:.85;}
.cd-img .cd-cap{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.95));font-size:.86rem;color:var(--muted-2);}

/* generic grids */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.card-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.05rem;
  background:linear-gradient(140deg,rgba(37,99,235,.35),rgba(56,189,248,.22));
  border:1px solid var(--line-strong);color:var(--cyan);margin-bottom:16px;}
.card p{font-size:.92rem;margin-bottom:0;}
.card h3{font-size:1.05rem;}
.card h4{font-size:.98rem;margin-bottom:.4rem;}

/* game library */
.game-block{display:grid;grid-template-columns:.95fr 1.05fr;gap:0;overflow:hidden;margin-bottom:24px;}
.game-block:last-child{margin-bottom:0;}
.game-block .gb-media{position:relative;min-height:250px;}
.game-block .gb-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.game-block .gb-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,7,18,.75),rgba(3,7,18,.15));}
.game-block .gb-body{padding:30px 32px;}
.game-block h3{margin-top:12px;}
.check-list{margin-top:14px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted-2);padding:7px 0;}
.check-list i{color:var(--green);margin-top:4px;font-size:.82rem;}

/* gifts */
.gift-card{position:relative;padding:28px 26px;display:flex;flex-direction:column;}
.gift-card .gift-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px;}
.gift-amount{font-size:1.75rem;font-weight:900;color:#fff;letter-spacing:-.02em;}
.gift-amount small{display:block;font-size:.74rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.gift-card ul{margin:14px 0 20px;}
.gift-card ul li{font-size:.88rem;color:var(--muted-2);padding:6px 0 6px 22px;position:relative;}
.gift-card ul li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;
  color:var(--cyan);position:absolute;left:0;top:9px;}
.gift-card .btn{margin-top:auto;}
.gift-card.featured{border-color:rgba(56,189,248,.55);box-shadow:var(--shadow),0 0 34px rgba(37,99,235,.35);}

/* membership table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,32,.72);}
table.member-table{width:100%;border-collapse:collapse;min-width:720px;}
table.member-table th,table.member-table td{padding:16px 18px;text-align:left;font-size:.9rem;border-bottom:1px solid rgba(56,189,248,.12);}
table.member-table thead th{background:rgba(37,99,235,.16);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);font-weight:800;}
table.member-table tbody tr:hover{background:rgba(56,189,248,.06);}
table.member-table td:first-child{font-weight:700;color:#fff;}
table.member-table td{color:var(--muted-2);}
.tier-dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:9px;}
.tier-1{background:#94a3b8;} .tier-2{background:#38bdf8;} .tier-3{background:#fbbf24;} .tier-4{background:#f43f5e;}
.tier-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted-2);padding:8px 0;}
.tier-list i{color:var(--gold);margin-top:4px;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{padding:26px 22px;position:relative;}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:16px;right:20px;
  font-size:1.6rem;font-weight:900;color:rgba(56,189,248,.18);}
.step h4{margin-bottom:.4rem;}
.step p{font-size:.88rem;margin-bottom:0;}

/* jackpot */
.jackpot-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.jackpot{padding:26px 24px;text-align:left;}
.jackpot .jp-num{font-size:clamp(1.3rem,2.2vw,1.75rem);font-weight:900;color:#fff;font-variant-numeric:tabular-nums;
  text-shadow:0 0 16px rgba(56,189,248,.55);}
.jp-pulse{display:inline-flex;align-items:center;gap:8px;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--green);font-weight:700;}
.jp-pulse::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);
  box-shadow:0 0 10px var(--green);animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.75);}}

/* metrics */
.metric{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.metric-item{padding:24px 22px;border-left:3px solid var(--blue);background:linear-gradient(120deg,rgba(13,30,60,.7),rgba(6,14,32,.45));border-radius:var(--radius-sm);}
.metric-item b{display:block;font-size:1.6rem;font-weight:900;color:#fff;letter-spacing:-.02em;}
.metric-item span{font-size:.84rem;color:var(--muted);}

/* category wall */
.cat-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.cat-card .cc-img{height:160px;overflow:hidden;}
.cat-card .cc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.cat-card:hover .cc-img img{transform:scale(1.06);}
.cat-card .cc-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.cat-card .cc-body p{font-size:.9rem;flex:1;}
.cat-link{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;font-weight:700;color:var(--cyan);margin-top:14px;}
.cat-link:hover{gap:12px;color:#fff;}

/* audience */
.audience{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.aud-item{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:.92rem;color:var(--muted-2);
  border-bottom:1px dashed rgba(56,189,248,.12);}
.aud-item:last-child{border-bottom:0;}
.aud-item i{margin-top:4px;}
.aud-item .ok{color:var(--green);}
.aud-item .no{color:#fb7185;}

/* faq */
.faq-item{border-bottom:1px solid rgba(56,189,248,.14);}
.faq-item:last-child{border-bottom:0;}
.faq-q{width:100%;background:none;border:0;color:#fff;text-align:left;font-weight:700;font-size:.98rem;
  padding:20px 44px 20px 0;position:relative;cursor:pointer;}
.faq-q::after{content:"\2b";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:1.1rem;font-weight:700;}
.faq-item.open .faq-q::after{content:"\2212";}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .3s ease;padding:0 44px 0 0;}
.faq-item.open .faq-a{max-height:340px;padding-bottom:20px;}
.faq-a p{font-size:.92rem;margin:0;}

/* reviews */
.review{padding:26px 24px;display:flex;flex-direction:column;}
.review .rv-stars{color:var(--gold);font-size:.85rem;margin-bottom:12px;letter-spacing:2px;}
.review p{font-size:.92rem;flex:1;}
.rv-user{display:flex;align-items:center;gap:12px;margin-top:18px;border-top:1px solid rgba(56,189,248,.12);padding-top:16px;}
.rv-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#04101f;
  background:linear-gradient(140deg,#38bdf8,#2563eb);font-size:.9rem;}
.rv-user b{font-size:.9rem;display:block;color:#fff;}
.rv-user span{font-size:.76rem;color:var(--muted);}

/* topics */
.topic-scroll{display:flex;gap:18px;overflow-x:auto;padding:6px 2px 20px;scroll-snap-type:x mandatory;}
.topic-scroll::-webkit-scrollbar{height:6px;}
.topic-scroll::-webkit-scrollbar-thumb{background:rgba(56,189,248,.35);border-radius:3px;}
.topic-card{flex:0 0 260px;scroll-snap-align:start;overflow:hidden;}
.topic-card img{height:132px;width:100%;object-fit:cover;}
.topic-card .tc-body{padding:16px 18px 20px;}
.topic-card .tc-body h4{font-size:.95rem;margin-bottom:.35rem;}
.topic-card .tc-body span{font-size:.76rem;color:var(--muted);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;}
.tag-cloud span{font-size:.82rem;padding:7px 15px;border-radius:var(--pill);border:1px solid var(--line);
  background:rgba(56,189,248,.05);color:var(--muted-2);}
.tag-cloud span:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.12);}

/* news */
.news-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;}
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{display:grid;grid-template-columns:200px 1fr;gap:20px;padding:18px;align-items:center;}
.news-item img{width:200px;height:126px;object-fit:cover;border-radius:var(--radius-sm);}
.news-item h3{font-size:1.02rem;margin:9px 0 6px;}
.news-item h3 a:hover{color:var(--cyan);}
.news-item p{font-size:.88rem;margin-bottom:8px;}
.news-item time{font-size:.75rem;color:var(--muted);letter-spacing:.04em;}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-item{display:flex;gap:14px;align-items:center;padding:14px;}
.side-item img{width:74px;height:60px;object-fit:cover;border-radius:var(--radius-xs);flex:0 0 74px;}
.side-item h4{font-size:.9rem;margin-bottom:4px;line-height:1.4;}
.side-item span{font-size:.73rem;color:var(--muted);}
.empty-note{padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);font-size:.92rem;}

/* cta */
.cta-panel{padding:44px 40px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(37,99,235,.24) 0%,rgba(8,18,41,.92) 48%,rgba(56,189,248,.18) 100%);
  border:1px solid var(--line-strong);border-radius:var(--radius);}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;}
.cta-form{display:grid;gap:12px;}
.cta-form input{background:rgba(3,7,18,.66);border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  padding:13px 16px;color:#fff;font-size:.92rem;}
.cta-form input::placeholder{color:#64748b;}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16);}
.form-note{font-size:.78rem;color:var(--muted);}

/* footer */
.site-footer{background:linear-gradient(180deg,rgba(5,13,31,.96),#030712);border-top:1px solid var(--line);padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;margin-bottom:38px;}
.footer-brand p{font-size:.88rem;color:var(--muted);margin-top:14px;}
.footer-col h4{font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px;}
.footer-col a{display:block;font-size:.88rem;color:var(--muted-2);padding:6px 0;}
.footer-col a:hover{color:var(--cyan);padding-left:4px;}
.footer-contact li{font-size:.88rem;color:var(--muted-2);padding:6px 0;display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--cyan);margin-top:5px;font-size:.8rem;}
.footer-bottom{border-top:1px solid rgba(56,189,248,.12);padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;font-size:.8rem;color:var(--muted);}
.age-badge{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  border:2px solid rgba(244,63,94,.6);color:#fb7185;font-weight:900;font-size:.82rem;}

/* fab */
.fab{position:fixed;left:1rem;bottom:6rem;z-index:1050;width:58px;height:58px;border-radius:var(--pill);
  display:grid;place-items:center;font-size:1.2rem;color:#eaf6ff;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.86),rgba(7,12,26,.86)),
    linear-gradient(140deg,#38bdf8,#2563eb,#22d3ee);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s ease,transform .25s ease,box-shadow .3s ease;
  animation:fabFloat 3.6s ease-in-out infinite;}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 32px rgba(56,189,248,.7);color:#fff;}
.fab:active{transform:scale(.95) translateY(2px);}
.fab i{transition:transform .5s ease;}
.fab:hover i{transform:rotate(360deg);}
.fab-dot{position:absolute;top:4px;right:4px;width:11px;height:11px;border-radius:50%;background:var(--pink);
  box-shadow:0 0 0 2px rgba(3,7,18,.9),0 0 10px var(--pink);animation:pulse 1.4s infinite;}
@keyframes fabFloat{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}

@media (max-width:1199.98px){
  .hero-grid{gap:32px;}
  .news-item{grid-template-columns:170px 1fr;}
  .news-item img{width:170px;height:112px;}
}
@media (max-width:991.98px){
  section{padding:60px 0;}
  .hero{padding:48px 0 58px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cd-wrap{grid-template-columns:1fr;}
  .grid-3,.grid-4,.jackpot-grid,.steps,.metric{grid-template-columns:repeat(2,minmax(0,1fr));}
  .game-block{grid-template-columns:1fr;}
  .game-block .gb-media{min-height:210px;}
  .news-layout{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .trust-row{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  .nav-actions .btn{padding:10px 15px;font-size:.84rem;}
  .trust-row{grid-template-columns:1fr;}
  .grid-3,.grid-4,.jackpot-grid,.steps,.metric,.audience,.grid-2{grid-template-columns:1fr;}
  .news-item{grid-template-columns:1fr;}
  .news-item img{width:100%;height:172px;}
  .cta-panel{padding:30px 22px;}
  .sec-head{margin-bottom:30px;}
  .pad-lg{padding:24px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  h1{font-size:1.62rem;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text small{display:none;}
  .brand-text strong{font-size:.95rem;}
  .cd-boxes{grid-template-columns:repeat(2,minmax(0,1fr));}
  .btn{padding:11px 18px;font-size:.88rem;}
  .fab{width:52px;height:52px;bottom:5rem;}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:#0b1a35;
  --glass:rgba(11,26,53,.62);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.36);
  --gold:#fbbf24;
  --green:#34d399;
  --pink:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --pill:999px;
  --shadow-sm:0 6px 18px rgba(2,8,23,.5);
  --shadow:0 18px 44px rgba(2,8,23,.62);
  --glow-blue:0 0 22px rgba(37,99,235,.5);
  --glow-cyan:0 0 26px rgba(56,189,248,.42);
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 500px at 92% 6%,rgba(56,189,248,.14),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d1f 42%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--cyan);}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
section{position:relative;padding:74px 0;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.85) 0%,rgba(3,7,18,.2) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:52px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:16px;
}
.eyebrow i{font-size:.8rem;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.45rem,2.6vw,2.05rem);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:1rem;line-height:1.7;}
.text-glow{background:linear-gradient(120deg,#60a5fa,#38bdf8 60%,#a5f3fc);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;line-height:1.2;}
.btn i{font-size:.92rem;}
.btn-glow{background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);color:#04101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 10px 26px rgba(37,99,235,.45);}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 16px 34px rgba(56,189,248,.5);}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan);transform:translateY(-2px);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn-sm{padding:9px 18px;font-size:.86rem;}

/* badges */
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);
  background:rgba(37,99,235,.16);border:1px solid rgba(56,189,248,.34);color:var(--cyan);
}
.badge-tag.gold{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--gold);}
.badge-tag.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.36);color:var(--green);}
.badge-tag.pink{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.36);color:#fb7185;}

/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04101f;font-size:1.05rem;
  box-shadow:0 0 18px rgba(56,189,248,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.02rem;font-weight:900;letter-spacing:.06em;color:#fff;}
.brand-text small{font-size:.68rem;color:var(--muted);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;padding:9px 15px;border-radius:var(--pill);font-size:.9rem;font-weight:600;color:var(--muted-2);}
.main-nav a:hover{color:#fff;background:rgba(56,189,248,.08);}
.main-nav a.active{color:#fff;background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 1px var(--line-strong);}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{background:rgba(56,189,248,.08);border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1rem;}
.mobile-nav{border-top:1px solid var(--line);background:rgba(5,13,31,.98);}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:10px;padding-bottom:16px;}
.mobile-nav a{padding:12px 4px;font-size:.95rem;font-weight:600;color:var(--muted-2);border-bottom:1px solid rgba(56,189,248,.08);}
.mobile-nav a.active{color:var(--cyan);}

/* article hero */
.article-hero{padding:44px 0 56px;overflow:hidden;}
.article-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.2;}
.article-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.75) 0%,rgba(3,7,18,.94) 60%,rgba(3,7,18,1) 100%);}
.article-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted-2);}
.crumb a:hover{color:var(--cyan);}
.crumb i{font-size:.62rem;color:rgba(148,163,184,.6);}
.crumb .current{color:var(--cyan);font-weight:600;}
.hero-cols{display:grid;grid-template-columns:1.12fr .88fr;gap:42px;align-items:center;}
.article-title{font-size:clamp(1.55rem,3.2vw,2.45rem);line-height:1.24;margin-bottom:18px;}
.article-lead{color:var(--muted-2);font-size:1.02rem;line-height:1.75;margin-bottom:22px;}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:26px;}
.meta-chip{display:inline-flex;align-items:center;gap:7px;font-size:.8rem;font-weight:600;color:var(--muted-2);
  background:rgba(11,26,53,.7);border:1px solid var(--line);border-radius:var(--pill);padding:7px 14px;}
.meta-chip i{color:var(--cyan);font-size:.82rem;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.cover-frame{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow),var(--glow-blue);}
.cover-frame img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.cover-frame::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,0) 45%,rgba(3,7,18,.85) 100%);}
.cover-caption{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;display:flex;flex-wrap:wrap;gap:8px;}

/* article body */
.article-wrap{padding:70px 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;}
.article-body{
  font-size:1.03rem;line-height:1.75;color:var(--muted-2);
  background:linear-gradient(180deg,rgba(11,26,53,.5),rgba(5,13,31,.35));
  border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow-sm);
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{color:#fff;font-size:clamp(1.25rem,2.2vw,1.6rem);margin:36px 0 14px;padding-left:14px;
  border-left:3px solid var(--cyan);line-height:1.35;}
.article-body h3{color:#fff;font-size:1.15rem;margin:28px 0 12px;}
.article-body h4{color:#fff;font-size:1rem;margin:22px 0 10px;}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:10px;}
.article-body ul li::before{content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;color:var(--cyan);font-size:.86rem;}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:10px;}
.article-body strong{color:#fff;}
.article-body a{color:var(--cyan);text-decoration:underline;}
.article-body img{border-radius:var(--radius-sm);margin:20px 0;border:1px solid var(--line);}
.article-body blockquote{margin:22px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(37,99,235,.1);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#e2e8f0;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.94rem;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:rgba(37,99,235,.16);color:#fff;}
.not-found{text-align:center;padding:52px 24px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  background:rgba(11,26,53,.4);}
.not-found i{font-size:2rem;color:var(--cyan);margin-bottom:14px;display:block;}
.not-found h2{font-size:1.3rem;margin-bottom:10px;}
.not-found p{color:var(--muted);margin-bottom:20px;}

/* highlight grid */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.info-card{background:linear-gradient(160deg,rgba(11,26,53,.72),rgba(5,13,31,.5));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;}
.info-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.info-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);font-size:1.05rem;}
.info-card h3{font-size:1.05rem;margin-bottom:10px;color:#fff;}
.info-card p{color:var(--muted);font-size:.94rem;line-height:1.68;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step;}
.step{position:relative;background:rgba(11,26,53,.6);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 22px 24px;transition:border-color .25s ease,transform .25s ease;}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.step-num{font-size:.78rem;font-weight:900;letter-spacing:.16em;color:var(--cyan);margin-bottom:12px;display:block;}
.step h3{font-size:1rem;margin-bottom:9px;color:#fff;}
.step p{font-size:.92rem;color:var(--muted);line-height:1.65;}

/* payments */
.pay-list{display:flex;flex-wrap:wrap;gap:12px;}
.pay-item{display:inline-flex;align-items:center;gap:9px;padding:12px 18px;border-radius:var(--pill);
  background:rgba(11,26,53,.66);border:1px solid var(--line);font-size:.9rem;font-weight:600;color:var(--muted-2);
  transition:border-color .22s ease,color .22s ease,transform .22s ease;}
.pay-item:hover{border-color:var(--line-strong);color:#fff;transform:translateY(-2px);}
.pay-item i{color:var(--cyan);}

/* game cards */
.game-card{background:rgba(11,26,53,.58);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;height:100%;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;}
.game-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.game-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.game-body{padding:18px 20px 22px;}
.game-body h3{font-size:1rem;margin-bottom:8px;color:#fff;}
.game-body p{font-size:.9rem;color:var(--muted);line-height:1.62;}
.game-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}

/* stats strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  border:1px solid var(--line);border-radius:var(--radius);background:rgba(8,18,41,.7);padding:26px 22px;}
.stat-item{text-align:left;padding-left:14px;border-left:2px solid rgba(56,189,248,.35);}
.stat-item strong{display:block;font-size:1.5rem;font-weight:900;color:#fff;line-height:1.2;}
.stat-item span{font-size:.84rem;color:var(--muted);}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(11,26,53,.55);overflow:hidden;}
.faq-item h3{margin:0;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:transparent;border:0;color:#fff;font-size:.98rem;font-weight:700;padding:18px 20px;cursor:pointer;}
.faq-q i{color:var(--cyan);transition:transform .25s ease;font-size:.85rem;}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);}
.faq-a{padding:0 20px 18px;color:var(--muted);font-size:.94rem;line-height:1.7;}

/* cta */
.cta-band{border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;position:relative;
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(8,18,41,.9));padding:44px 38px;}
.cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/7780891d7f1a13d3.jpg') center/cover no-repeat;opacity:.13;}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center;}
.cta-inner h2{font-size:clamp(1.35rem,2.6vw,1.95rem);margin-bottom:12px;}
.cta-inner p{color:var(--muted-2);line-height:1.7;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}

/* fab */
.fab{position:fixed;left:16px;bottom:96px;z-index:1050;width:56px;height:56px;border-radius:var(--pill);
  display:grid;place-items:center;font-size:1.15rem;color:#04101f;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
  border:1px solid rgba(165,243,252,.6);
  box-shadow:0 0 20px rgba(56,189,248,.5);
  opacity:.82;transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;}
.fab:hover{opacity:1;color:#04101f;transform:scale(1.08);box-shadow:0 0 30px rgba(56,189,248,.75);}
.fab:active{transform:scale(.94);}
.fab-dot{position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;background:var(--pink);
  box-shadow:0 0 10px rgba(244,63,94,.9);}

/* footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(5,13,31,.98));
  border-top:1px solid var(--line);padding:58px 0 26px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand p{color:var(--muted);font-size:.92rem;line-height:1.7;margin-top:16px;max-width:420px;}
.footer-brand .brand{margin-bottom:4px;}
.footer-col h4{font-size:.86rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:16px;}
.footer-col a{display:block;font-size:.92rem;color:var(--muted);padding:6px 0;}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:10px;font-size:.9rem;color:var(--muted);padding:6px 0;line-height:1.6;}
.footer-contact i{color:var(--cyan);margin-top:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid var(--line);margin-top:38px;padding-top:20px;font-size:.84rem;color:var(--muted);}
.age-badge{display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:.76rem;
  padding:4px 10px;border-radius:var(--pill);border:1px solid var(--line-strong);color:var(--cyan);}

@media (max-width:1024px){
  .hero-cols{grid-template-columns:1fr;gap:30px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:22px;}
}
@media (max-width:768px){
  section{padding:56px 0;}
  .article-hero{padding:32px 0 44px;}
  .article-wrap{padding:50px 0;}
  .article-body{padding:24px 20px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px;}
  .cta-band{padding:32px 22px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .grid-3,.grid-4,.grid-2,.steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text strong{font-size:.94rem;}
  .brand-text small{display:none;}
  .article-body h2{padding-left:10px;}
  .fab{left:12px;bottom:86px;width:52px;height:52px;}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:#0b1a35;
  --glass:rgba(11,26,53,.62);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.36);
  --gold:#fbbf24;
  --green:#34d399;
  --pink:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --pill:999px;
  --shadow-sm:0 6px 18px rgba(2,8,23,.5);
  --shadow:0 18px 44px rgba(2,8,23,.62);
  --glow-blue:0 0 22px rgba(37,99,235,.5);
  --glow-cyan:0 0 26px rgba(56,189,248,.42);
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 500px at 92% 6%,rgba(56,189,248,.14),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d1f 42%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease,transform .22s ease;}
a:hover{color:var(--cyan);}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4,h5{font-weight:800;line-height:1.22;letter-spacing:-.01em;margin:0 0 14px;color:#fff;}
h1{font-size:clamp(1.85rem,3.4vw,2.75rem);}
h2{font-size:clamp(1.4rem,2.4vw,2.05rem);}
h3{font-size:1.1rem;}
p{margin:0 0 14px;color:var(--muted-2);line-height:1.68;}
ul,ol{margin:0 0 14px;padding-left:20px;color:var(--muted-2);}
li{margin-bottom:8px;line-height:1.62;}
strong{color:#fff;font-weight:700;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
section{position:relative;padding:76px 0;}
section[id]{scroll-margin-top:96px;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.85) 0%,rgba(3,7,18,.2) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:52px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:18px;
}
.lead{font-size:1.04rem;color:var(--muted-2);max-width:62ch;}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head p:last-child{margin-bottom:0;}
.text-glow{color:var(--cyan);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;line-height:1.2;}
.btn i{font-size:.92rem;}
.btn-glow{background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);color:#04101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 10px 26px rgba(37,99,235,.45);}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 16px 34px rgba(56,189,248,.5);}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan);transform:translateY(-2px);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.btn-sm{padding:9px 18px;font-size:.86rem;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);
  background:rgba(37,99,235,.16);border:1px solid rgba(56,189,248,.34);color:var(--cyan);
}
.badge-tag.gold{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--gold);}
.badge-tag.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.36);color:var(--green);}
.badge-tag.pink{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.36);color:#fb7185;}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04101f;font-size:1.05rem;
  box-shadow:0 0 18px rgba(56,189,248,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.02rem;font-weight:900;letter-spacing:.06em;color:#fff;}
.brand-text small{font-size:.68rem;color:var(--muted);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;padding:9px 15px;border-radius:var(--pill);font-size:.9rem;font-weight:600;color:var(--muted-2);}
.main-nav a:hover{color:#fff;background:rgba(56,189,248,.08);}
.main-nav a.active{color:#fff;background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 1px var(--line-strong);}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{background:rgba(56,189,248,.08);border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1rem;}
.nav-toggle:hover{background:rgba(56,189,248,.18);}
.mobile-nav{display:none;border-top:1px solid var(--line);background:rgba(5,13,31,.98);}
.mobile-nav.open{display:block;}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:10px;padding-bottom:16px;}
.mobile-nav a{padding:12px 4px;font-size:.95rem;font-weight:600;color:var(--muted-2);border-bottom:1px solid rgba(56,189,248,.08);}
.mobile-nav a.active{color:var(--cyan);}
/* ---------- hero ---------- */
.hero{padding:62px 0 74px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.22;filter:saturate(.85) blur(1px);}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.7) 0%,rgba(3,7,18,.9) 55%,rgba(3,7,18,1) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:46px;align-items:center;}
.hero-copy{text-align:left;}
.hero-copy h1{margin-bottom:16px;}
.hero-visual{position:relative;padding:0 0 26px 26px;}
.hero-frame{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow);transform:rotate(-1.2deg);}
.hero-frame img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-visual::before{content:"";position:absolute;top:-16px;right:-16px;bottom:40px;left:48px;
  border:1px solid rgba(56,189,248,.22);border-radius:28px;transform:rotate(1.6deg);z-index:-1;}
.server-card{position:absolute;left:-4px;bottom:0;background:var(--glass);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:16px 18px;min-width:262px;box-shadow:var(--shadow-sm);}
.server-row{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:.84rem;
  color:var(--muted-2);padding:4px 0;}
.server-row strong{color:#fff;}
.dot-live{width:9px;height:9px;border-radius:50%;background:var(--green);display:inline-block;
  box-shadow:0 0 10px var(--green);margin-right:8px;animation:pulseDot 1.8s infinite;}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;}
.kpi{background:rgba(11,26,53,.5);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;text-align:left;}
.kpi strong{display:block;font-size:1.32rem;font-weight:900;color:var(--cyan);line-height:1.1;}
.kpi span{font-size:.78rem;color:var(--muted);display:block;margin-top:6px;line-height:1.45;}
/* ---------- trust strip ---------- */
.trust-strip{display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;justify-content:space-between;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:.88rem;font-weight:600;color:var(--muted-2);}
.trust-item i{color:var(--cyan);font-size:1rem;}
/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.feature-card{background:linear-gradient(155deg,rgba(11,26,53,.72),rgba(5,13,31,.55));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 22px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow-blue);}
.feature-card i.fc-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(37,99,235,.2);color:var(--cyan);font-size:1.05rem;margin-bottom:16px;
  box-shadow:inset 0 0 0 1px var(--line-strong);}
.feature-card h3{margin-bottom:8px;font-size:1.06rem;}
.feature-card p{margin-bottom:0;font-size:.93rem;color:var(--muted);}
/* ---------- steps ---------- */
.steps-layout{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:start;}
.step-item{display:grid;grid-template-columns:56px 1fr;gap:18px;position:relative;padding-bottom:26px;}
.step-item:last-child{padding-bottom:0;}
.step-item::after{content:"";position:absolute;left:27px;top:58px;bottom:8px;width:1px;
  background:linear-gradient(180deg,var(--line-strong),rgba(56,189,248,0));}
.step-item:last-child::after{display:none;}
.step-num{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-weight:900;
  font-size:1.1rem;color:#04101f;background:linear-gradient(140deg,#2563eb,#38bdf8);
  box-shadow:0 0 18px rgba(56,189,248,.42);}
.step-body h3{margin-bottom:6px;font-size:1.02rem;}
.step-body p{margin-bottom:0;font-size:.92rem;color:var(--muted);}
.side-panel{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:26px;}
.side-panel img{border-radius:var(--radius-sm);margin-bottom:18px;aspect-ratio:16/10;object-fit:cover;width:100%;}
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{display:flex;gap:11px;font-size:.92rem;color:var(--muted-2);padding:8px 0;margin:0;}
.check-list i{color:var(--green);margin-top:4px;}
/* ---------- safety ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.media-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;}
.safety-item{background:rgba(11,26,53,.5);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;text-align:left;}
.safety-item i{color:var(--cyan);margin-right:8px;}
.safety-item span{font-size:.88rem;color:var(--muted-2);display:block;margin-top:6px;line-height:1.55;}
.safety-item strong{font-size:.95rem;}
/* ---------- payment ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:28px;}
.metric-card{background:linear-gradient(160deg,rgba(11,26,53,.78),rgba(5,13,31,.5));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.metric-card span{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);}
.metric-card strong{display:block;font-size:1.2rem;font-weight:900;color:#fff;margin-top:8px;}
.metric-card small{display:block;color:var(--muted);font-size:.82rem;margin-top:8px;line-height:1.5;}
.pay-row{display:flex;flex-wrap:wrap;gap:12px;}
.pay-badge{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:var(--pill);
  background:rgba(8,18,41,.8);border:1px solid var(--line-strong);font-size:.88rem;font-weight:600;color:var(--muted-2);
  transition:transform .2s ease,border-color .2s ease,color .2s ease;}
.pay-badge i{color:var(--cyan);}
.pay-badge:hover{transform:translateY(-3px);border-color:var(--cyan);color:#fff;}
/* ---------- category entry ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cat-card{display:block;background:linear-gradient(150deg,rgba(11,26,53,.75),rgba(5,13,31,.5));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow-cyan);color:inherit;}
.cat-card .cat-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.cat-card i.cat-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(37,99,235,.2);color:var(--cyan);box-shadow:inset 0 0 0 1px var(--line-strong);font-size:1.05rem;}
.cat-card h3{font-size:1.12rem;margin-bottom:8px;}
.cat-card p{font-size:.9rem;color:var(--muted);margin-bottom:16px;}
.cat-card .cat-link{font-size:.84rem;font-weight:700;color:var(--cyan);letter-spacing:.02em;}
.cat-card.active{border-color:var(--cyan);box-shadow:var(--glow-cyan);}
/* ---------- scenarios ---------- */
.scenario-list{border-top:1px solid var(--line);}
.scenario-item{display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:center;
  padding:24px 4px;border-bottom:1px solid var(--line);}
.scenario-item:hover{background:rgba(56,189,248,.03);}
.scenario-item i{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:rgba(56,189,248,.1);color:var(--cyan);font-size:1.1rem;border:1px solid var(--line);}
.scenario-item h3{font-size:1.02rem;margin-bottom:6px;}
.scenario-item p{margin-bottom:0;font-size:.9rem;color:var(--muted);}
.scenario-note{font-size:.8rem;font-weight:700;color:var(--holo);white-space:nowrap;
  border:1px solid var(--line-strong);border-radius:var(--pill);padding:6px 14px;}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{background:rgba(11,26,53,.55);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0;overflow:hidden;transition:border-color .25s ease;}
.faq-item[open]{border-color:var(--line-strong);}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:.98rem;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.78rem;
  color:var(--cyan);transition:transform .25s ease;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 22px 20px;font-size:.92rem;color:var(--muted-2);line-height:1.7;}
.faq-body p:last-child{margin-bottom:0;}
/* ---------- cta ---------- */
.cta-band{background:linear-gradient(135deg,rgba(37,99,235,.28),rgba(8,18,41,.9) 62%);
  border:1px solid var(--line-strong);border-radius:24px;padding:44px;position:relative;overflow:hidden;
  box-shadow:var(--shadow);}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 68%);}
.cta-band h2{margin-bottom:12px;max-width:640px;}
.cta-band p{max-width:620px;}
.cta-band .hero-actions{margin-top:22px;}
/* ---------- footer ---------- */
.site-footer{background:linear-gradient(180deg,rgba(5,13,31,.7),#030712);border-top:1px solid var(--line);
  padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.35fr;gap:32px;}
.footer-brand p{font-size:.92rem;color:var(--muted);line-height:1.7;margin-top:14px;max-width:44ch;}
.footer-col h4{font-size:.95rem;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col a{display:block;font-size:.9rem;color:var(--muted-2);padding:6px 0;}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-contact{list-style:none;padding:0;margin:0;}
.footer-contact li{display:flex;gap:10px;font-size:.88rem;color:var(--muted-2);padding:6px 0;margin:0;}
.footer-contact i{color:var(--cyan);margin-top:4px;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:34px;padding-top:20px;font-size:.84rem;color:var(--muted);}
.age-badge{border:1px solid var(--line-strong);color:var(--cyan);border-radius:var(--pill);
  padding:3px 12px;font-weight:700;font-size:.78rem;}
/* ---------- FAB ---------- */
.fab{position:fixed;left:16px;bottom:96px;z-index:1050;width:56px;height:56px;border-radius:var(--pill);
  display:grid;place-items:center;background:rgba(7,7,13,.8);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
    linear-gradient(135deg,#38bdf8,#2563eb 55%,#a3e635);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-size:1.15rem;opacity:.8;
  box-shadow:0 0 20px rgba(56,189,248,.45);animation:fabPulse 3s ease-in-out infinite;}
.fab:hover{opacity:1;color:#fff;transform:scale(1.08);box-shadow:0 0 30px rgba(56,189,248,.7);}
.fab:active{transform:scale(.94);}
.fab .fab-dot{position:absolute;top:6px;right:6px;width:10px;height:10px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 10px var(--pink);animation:pulseDot 1.4s infinite;}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.4);}50%{box-shadow:0 0 30px rgba(56,189,248,.72);}}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-visual{transform:none;padding:0 0 22px 0;}
  .hero-visual::before{display:none;}
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .metric-grid{grid-template-columns:1fr 1fr;}
  .cat-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  section{padding:56px 0;}
  .feature-grid{grid-template-columns:1fr;}
  .safety-grid{grid-template-columns:1fr;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
  .scenario-item{grid-template-columns:52px 1fr;gap:16px;}
  .scenario-note{grid-column:2;justify-self:start;margin-top:10px;}
  .cta-band{padding:30px 22px;}
  .server-card{position:static;margin-top:16px;width:100%;}
}
@media (max-width:520px){
  body{font-size:15px;}
  h1{font-size:1.58rem;}
  .kpi-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .brand-text small{display:none;}
  .fab{left:12px;bottom:84px;width:52px;height:52px;}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:#0b1a35;
  --glass:rgba(11,26,53,.62);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.36);
  --gold:#fbbf24;
  --green:#34d399;
  --pink:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --pill:999px;
  --shadow-sm:0 6px 18px rgba(2,8,23,.5);
  --shadow:0 18px 44px rgba(2,8,23,.62);
  --glow-blue:0 0 22px rgba(37,99,235,.5);
  --glow-cyan:0 0 26px rgba(56,189,248,.42);
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 500px at 92% 6%,rgba(56,189,248,.14),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d1f 42%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease,border-color .22s ease,background .22s ease;}
a:hover{color:var(--cyan);}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.24;font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
section{position:relative;padding:78px 0;}
.section-tight{padding:52px 0;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.85) 0%,rgba(3,7,18,.2) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:18px;
}
.eyebrow i{font-size:.8rem;}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
.section-head p{color:var(--muted-2);font-size:1rem;}
.text-muted{color:var(--muted);}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;line-height:1.2;}
.btn i{font-size:.92rem;}
.btn-glow{background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);color:#04101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 10px 26px rgba(37,99,235,.45);}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 16px 34px rgba(56,189,248,.5);}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan);transform:translateY(-2px);}
.btn-soft{background:rgba(37,99,235,.14);border-color:rgba(37,99,235,.4);color:#dbeafe;}
.btn-soft:hover{background:rgba(37,99,235,.26);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn-sm{padding:9px 18px;font-size:.86rem;}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);
  background:rgba(37,99,235,.16);border:1px solid rgba(56,189,248,.34);color:var(--cyan);
}
.badge-tag.gold{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--gold);}
.badge-tag.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.36);color:var(--green);}
.badge-tag.pink{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.36);color:#fb7185;}
/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.9);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04101f;font-size:1.05rem;
  box-shadow:0 0 18px rgba(56,189,248,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1rem;font-weight:900;letter-spacing:.06em;color:#fff;}
.brand-text small{font-size:.68rem;color:var(--muted);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;padding:9px 15px;border-radius:var(--pill);font-size:.9rem;font-weight:600;color:var(--muted-2);}
.main-nav a:hover{color:#fff;background:rgba(56,189,248,.08);}
.main-nav a.active{color:#fff;background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 1px var(--line-strong);}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-login{font-size:.88rem;font-weight:700;color:var(--cyan);border:1px solid var(--line-strong);
  border-radius:var(--pill);padding:8px 16px;background:transparent;transition:all .22s ease;}
.nav-login:hover{color:#fff;border-color:var(--cyan);box-shadow:var(--glow-cyan);}
.nav-signup{font-size:.88rem;font-weight:800;color:#04101f;border-radius:var(--pill);padding:9px 18px;
  background:linear-gradient(135deg,#2563eb,#38bdf8);box-shadow:0 8px 20px rgba(37,99,235,.45);transition:all .22s ease;}
.nav-signup:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(56,189,248,.5);}
.nav-toggle{background:rgba(56,189,248,.08);border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1rem;}
.nav-toggle:hover{background:rgba(56,189,248,.18);color:#fff;}
.mobile-nav{display:none;border-top:1px solid var(--line);background:rgba(5,13,31,.98);}
.mobile-nav.open{display:block;}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:10px;padding-bottom:16px;}
.mobile-nav a{padding:12px 4px;font-size:.95rem;font-weight:600;color:var(--muted-2);border-bottom:1px solid rgba(56,189,248,.08);}
.mobile-nav a.active{color:var(--cyan);}
/* hero */
.hero{padding:60px 0 70px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.26;filter:saturate(.9);}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.72) 0%,rgba(3,7,18,.92) 58%,rgba(3,7,18,1) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:start;}
.hero h1{font-size:clamp(1.85rem,3.6vw,2.85rem);font-weight:900;letter-spacing:-.02em;margin-bottom:16px;}
.hero h1 span{background:linear-gradient(120deg,#38bdf8,#60a5fa 60%,#a5b4fc);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{color:var(--muted-2);font-size:1.03rem;max-width:620px;margin-bottom:22px;}
.check-list{display:grid;gap:10px;margin-bottom:26px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;color:var(--muted-2);font-size:.94rem;}
.check-list i{color:var(--cyan);margin-top:4px;font-size:.9rem;}
.check-list.two-col{grid-template-columns:1fr 1fr;column-gap:22px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-note{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.82rem;margin-top:16px;}
.hero-panel{background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.hero-panel figure{margin:0 0 16px;border-radius:var(--radius-sm);overflow:hidden;position:relative;}
.hero-panel figure img{width:100%;height:190px;object-fit:cover;}
.hero-panel figure figcaption{position:absolute;left:12px;bottom:12px;font-size:.76rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;background:rgba(3,7,18,.72);border:1px solid var(--line);
  padding:5px 11px;border-radius:var(--pill);color:var(--cyan);}
.mini-rows{display:grid;gap:10px;}
.mini-row{display:flex;justify-content:space-between;gap:12px;align-items:center;
  padding:11px 14px;border-radius:var(--radius-sm);background:rgba(3,7,18,.5);border:1px solid var(--line);}
.mini-row span:first-child{color:var(--muted);font-size:.85rem;}
.mini-row span:last-child{font-weight:800;color:#fff;font-size:.95rem;}
/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat-item{background:linear-gradient(180deg,rgba(11,26,53,.7),rgba(3,7,18,.5));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.stat-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow-cyan);}
.stat-value{display:block;font-size:1.7rem;font-weight:900;color:#fff;line-height:1.1;margin-bottom:6px;}
.stat-value small{font-size:.85rem;font-weight:700;color:var(--cyan);margin-left:4px;letter-spacing:.02em;}
.stat-item p{color:var(--muted);font-size:.88rem;margin:0;}
/* split blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.split-wide{grid-template-columns:1.15fr .85fr;}
.panel-glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.panel-glass h3{font-size:1.05rem;margin-bottom:14px;}
.kv-list{display:grid;gap:12px;}
.kv-list li{display:flex;justify-content:space-between;gap:14px;padding-bottom:12px;border-bottom:1px dashed rgba(56,189,248,.18);font-size:.94rem;}
.kv-list li:last-child{border-bottom:0;padding-bottom:0;}
.kv-list li span:first-child{color:var(--muted);}
.kv-list li span:last-child{font-weight:700;color:#fff;}
.note-line{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted);
  border-left:3px solid var(--cyan);padding:10px 0 10px 14px;background:rgba(56,189,248,.05);border-radius:0 var(--radius-xs) var(--radius-xs) 0;}
.note-line i{color:var(--cyan);margin-top:3px;}
/* pay cards */
.card-grid{display:grid;gap:18px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.pay-card{background:linear-gradient(180deg,rgba(11,26,53,.72),rgba(3,7,18,.55));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;}
.pay-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow-blue);}
.pay-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.15rem;
  color:#04101f;background:linear-gradient(140deg,#38bdf8,#2563eb);box-shadow:0 0 18px rgba(56,189,248,.4);margin-bottom:14px;}
.pay-card h3{font-size:1.05rem;margin-bottom:8px;}
.pay-card p{color:var(--muted);font-size:.9rem;margin-bottom:14px;}
.pay-meta{display:flex;flex-wrap:wrap;gap:8px;}
/* steps */
.steps{display:grid;gap:16px;counter-reset:step;}
.step{display:flex;gap:16px;padding:18px;border-radius:var(--radius-sm);
  background:rgba(3,7,18,.45);border:1px solid var(--line);transition:border-color .25s ease,transform .25s ease;}
.step:hover{border-color:var(--line-strong);transform:translateX(4px);}
.step-num{flex:0 0 40px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  font-weight:900;color:#04101f;background:linear-gradient(140deg,#38bdf8,#2563eb);box-shadow:0 0 16px rgba(37,99,235,.5);}
.step h3{font-size:1rem;margin-bottom:6px;}
.step p{color:var(--muted);font-size:.9rem;margin:0;}
.media-figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.media-figure img{width:100%;height:300px;object-fit:cover;}
.media-figure figcaption{padding:12px 16px;font-size:.83rem;color:var(--muted);background:rgba(3,7,18,.6);}
/* table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(3,7,18,.4);}
table.rate-table{width:100%;min-width:680px;border-collapse:collapse;font-size:.92rem;}
table.rate-table th,table.rate-table td{padding:14px 18px;text-align:left;border-bottom:1px solid rgba(56,189,248,.12);}
table.rate-table thead th{background:rgba(37,99,235,.16);color:#fff;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;}
table.rate-table tbody tr:hover{background:rgba(56,189,248,.06);}
table.rate-table td:first-child{font-weight:700;color:#fff;}
table.rate-table td{color:var(--muted-2);}
/* promo */
.promo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.promo-card{position:relative;border-radius:var(--radius);padding:24px;overflow:hidden;
  background:linear-gradient(150deg,rgba(37,99,235,.28),rgba(11,26,53,.85));
  border:1px solid var(--line-strong);transition:transform .25s ease,box-shadow .25s ease;}
.promo-card:hover{transform:translateY(-5px);box-shadow:var(--glow-blue);}
.promo-card .promo-value{font-size:1.7rem;font-weight:900;color:#fff;display:block;margin-bottom:6px;}
.promo-card h3{font-size:1rem;margin-bottom:8px;}
.promo-card p{color:var(--muted-2);font-size:.89rem;margin:0;}
/* topics */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.topic-card{display:block;border-radius:var(--radius);padding:22px;height:100%;
  background:rgba(11,26,53,.55);border:1px solid var(--line);transition:all .25s ease;}
.topic-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:var(--glow-cyan);color:inherit;}
.topic-card i{font-size:1.2rem;color:var(--cyan);margin-bottom:12px;display:block;}
.topic-card h3{font-size:1rem;margin-bottom:6px;color:#fff;}
.topic-card p{color:var(--muted);font-size:.87rem;margin:0;}
/* faq */
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--glow-cyan);}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:1rem;
  display:flex;justify-content:space-between;gap:14px;align-items:center;color:#fff;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"\2b";font-weight:900;color:var(--cyan);font-size:1.1rem;transition:transform .25s ease;}
.faq-item[open] summary::after{content:"\2212";}
.faq-body{padding:0 22px 20px;color:var(--muted-2);font-size:.94rem;border-top:1px solid rgba(56,189,248,.14);padding-top:16px;}
/* cta band */
.cta-band{border-radius:var(--radius);padding:40px;text-align:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18) 55%,rgba(3,7,18,.9));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2rem);}
.cta-band p{color:var(--muted-2);max-width:660px;margin:0 auto 24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.trust-row{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:22px;
  color:var(--muted);font-size:.82rem;}
.trust-row span{display:inline-flex;align-items:center;gap:7px;}
.trust-row i{color:var(--green);}
/* fab */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--pill);min-height:56px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(120deg,#38bdf8,#2563eb);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);opacity:.9;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;animation:fabPulse 3.4s ease-in-out infinite;}
.fab span{font-size:.86rem;font-weight:700;color:#fff;}
.fab i{color:var(--cyan);font-size:1rem;}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.04);box-shadow:0 0 30px rgba(56,189,248,.65);color:inherit;}
.fab:active{transform:scale(.97);}
.fab-dot{position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;background:#f43f5e;
  box-shadow:0 0 8px #f43f5e;animation:dotBlink 1.6s ease-in-out infinite;}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.4);}50%{box-shadow:0 0 30px rgba(56,189,248,.65);}}
@keyframes dotBlink{0%,100%{opacity:1;}50%{opacity:.35;}}
/* footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.4),rgba(8,18,41,.9));
  border-top:1px solid var(--line);padding:58px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand p{color:var(--muted);font-size:.9rem;margin-top:14px;max-width:400px;}
.footer-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px;}
.footer-col a{display:block;color:var(--muted-2);font-size:.9rem;padding:6px 0;}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-contact li{display:flex;gap:10px;color:var(--muted-2);font-size:.88rem;padding:5px 0;}
.footer-contact i{color:var(--cyan);margin-top:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);margin-top:36px;padding-top:20px;color:var(--muted);font-size:.82rem;}
.age-badge{display:inline-flex;align-items:center;justify-content:center;min-width:42px;padding:4px 10px;
  border-radius:var(--pill);border:1px solid rgba(251,191,36,.5);color:var(--gold);font-weight:800;font-size:.78rem;}
/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .split,.split-wide{grid-template-columns:1fr;gap:30px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .promo-grid,.topic-grid,.grid-3{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  section{padding:64px 0;}
}
@media (max-width:768px){
  .nav-wrap{min-height:64px;gap:10px;}
  .brand-text small{display:none;}
  .nav-login,.nav-signup{padding:7px 12px;font-size:.8rem;}
  .hero{padding:44px 0 54px;}
  .hero-panel figure img{height:170px;}
  .check-list.two-col{grid-template-columns:1fr;}
  .cta-band{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{justify-content:flex-start;}
  .fab{bottom:88px;left:12px;padding:10px 14px;min-height:52px;}
  .fab span{font-size:.78rem;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .grid-4,.grid-3,.promo-grid,.topic-grid,.stat-grid{grid-template-columns:1fr;}
  .hero h1{font-size:1.65rem;}
  .stat-value{font-size:1.45rem;}
  .btn{width:100%;justify-content:center;}
  .hero-cta,.cta-actions{flex-direction:column;align-items:stretch;}
  .nav-actions .nav-login{display:inline-flex;}
  .fab span{display:none;}
  .fab{padding:14px;border-radius:50%;}
  .media-figure img{height:210px;}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:#0b1a35;
  --glass:rgba(11,26,53,.62);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.36);
  --gold:#fbbf24;
  --green:#34d399;
  --pink:#f43f5e;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --pill:999px;
  --shadow-sm:0 6px 18px rgba(2,8,23,.5);
  --shadow:0 18px 44px rgba(2,8,23,.62);
  --glow-blue:0 0 22px rgba(37,99,235,.5);
  --glow-cyan:0 0 26px rgba(56,189,248,.42);
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(760px 500px at 92% 6%,rgba(56,189,248,.14),transparent 60%),
    linear-gradient(180deg,#030712 0%,#050d1f 42%,#030712 100%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--cyan);}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.narrow{max-width:940px;margin:0 auto;}
section{position:relative;padding:78px 0;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.85) 0%,rgba(3,7,18,.2) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:56px 0;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:18px;
}
.eyebrow i{font-size:.8rem;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;line-height:1.2;}
.btn i{font-size:.92rem;}
.btn-glow{background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);color:#04101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 10px 26px rgba(37,99,235,.45);}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 16px 34px rgba(56,189,248,.5);}
.btn-ghost{background:rgba(56,189,248,.06);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan);transform:translateY(-2px);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn-block{width:100%;}
.btn-sm{padding:9px 18px;font-size:.86rem;}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);
  background:rgba(37,99,235,.16);border:1px solid rgba(56,189,248,.34);color:var(--cyan);
}
.badge-tag.gold{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.4);color:var(--gold);}
.badge-tag.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.36);color:var(--green);}
.badge-tag.pink{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.36);color:#fb7185;}
/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04101f;font-size:1.05rem;
  box-shadow:0 0 18px rgba(56,189,248,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.02rem;font-weight:900;letter-spacing:.06em;color:#fff;}
.brand-text small{font-size:.68rem;color:var(--muted);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;padding:9px 15px;border-radius:var(--pill);font-size:.9rem;font-weight:600;color:var(--muted-2);}
.main-nav a:hover{color:#fff;background:rgba(56,189,248,.08);}
.main-nav a.active{color:#fff;background:rgba(37,99,235,.18);box-shadow:inset 0 0 0 1px var(--line-strong);}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{background:rgba(56,189,248,.08);border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1rem;}
.mobile-nav{border-top:1px solid var(--line);background:rgba(5,13,31,.98);}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:10px;padding-bottom:16px;}
.mobile-nav a{padding:12px 4px;font-size:.95rem;font-weight:600;color:var(--muted-2);border-bottom:1px solid rgba(56,189,248,.08);}
.mobile-nav a.active{color:var(--cyan);}
/* hero */
.hero{padding:60px 0 68px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.24;filter:saturate(.85) blur(1px);}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.7) 0%,rgba(3,7,18,.92) 55%,rgba(3,7,18,1) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:start;}
.hero h1{font-size:clamp(1.85rem,3.5vw,2.85rem);font-weight:900;line-height:1.22;letter-spacing:-.01em;margin:0 0 18px;}
.hero h1 span{background:linear-gradient(120deg,#38bdf8,#60a5fa 55%,#2563eb);
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{font-size:1.02rem;color:var(--muted-2);max-width:620px;margin:0 0 26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;padding:0;margin:0;list-style:none;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--muted-2);}
.hero-points i{color:var(--green);}
.panel{background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:22px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.panel-title strong{font-size:1rem;font-weight:800;}
.room-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.room-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:var(--radius-sm);background:rgba(3,7,18,.5);border:1px solid var(--line);}
.room-list .room-name{display:flex;align-items:center;gap:11px;font-weight:600;font-size:.9rem;}
.room-list .room-name i{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);color:var(--cyan);font-size:.85rem;}
.room-list .room-meta{font-size:.78rem;color:var(--muted);white-space:nowrap;}
.panel-note{margin:16px 0 0;font-size:.8rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px;}
/* section head */
.sec-head{max-width:760px;margin:0 0 40px;}
.sec-head h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;line-height:1.3;margin:0 0 14px;}
.sec-head p{color:var(--muted-2);margin:0;font-size:.98rem;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
/* feature list (not cards) */
.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:0 46px;}
.feature-row{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line);}
.feature-row i{flex:0 0 44px;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);color:var(--cyan);font-size:1rem;}
.feature-row h3{font-size:1rem;font-weight:700;margin:0 0 6px;}
.feature-row p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.6;}
/* catalog */
.catalog{display:grid;grid-template-columns:.9fr 1.6fr;gap:36px;align-items:start;}
.catalog-tabs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.catalog-tabs li{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 16px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(8,18,41,.5);font-weight:600;font-size:.92rem;color:var(--muted-2);transition:.22s;}
.catalog-tabs li.on{background:rgba(37,99,235,.2);border-color:var(--line-strong);color:#fff;box-shadow:var(--glow-blue);}
.catalog-tabs li i{color:var(--cyan);font-size:.85rem;}
.game-rows{display:flex;flex-direction:column;gap:14px;}
.game-row{display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 18px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(11,26,53,.7),rgba(3,7,18,.4));transition:.25s;}
.game-row:hover{border-color:var(--line-strong);transform:translateX(4px);box-shadow:var(--shadow-sm);}
.game-row .g-info{display:flex;align-items:center;gap:14px;min-width:0;}
.game-row .g-info img{width:52px;height:52px;flex:0 0 52px;border-radius:10px;object-fit:cover;border:1px solid var(--line);}
.game-row .g-info strong{display:block;font-size:.94rem;font-weight:700;}
.game-row .g-info span{font-size:.79rem;color:var(--muted);}
.game-row .g-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
/* scenario cards */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scene{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.scene img{width:100%;height:160px;object-fit:cover;opacity:.92;}
.scene-body{padding:20px;}
.scene-body h3{font-size:1rem;font-weight:700;margin:0 0 8px;}
.scene-body p{margin:0;font-size:.89rem;color:var(--muted);line-height:1.65;}
/* data strip */
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;background:rgba(8,18,41,.5);}
.data-cell{padding:26px 22px;border-right:1px solid var(--line);}
.data-cell:last-child{border-right:0;}
.data-cell strong{display:block;font-size:1.6rem;font-weight:900;color:var(--cyan);letter-spacing:-.02em;}
.data-cell span{display:block;font-size:.82rem;color:var(--muted);margin-top:6px;line-height:1.5;}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{padding:24px 20px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(3,7,18,.45);position:relative;}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:1.5rem;font-weight:900;color:rgba(56,189,248,.4);margin-bottom:10px;letter-spacing:.02em;}
.step h3{font-size:.96rem;font-weight:700;margin:0 0 8px;}
.step p{margin:0;font-size:.87rem;color:var(--muted);line-height:1.6;}
/* payment */
.pay-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;}
.pay-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);}
.pay-img img{width:100%;height:320px;object-fit:cover;}
.pay-list{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:14px;}
.pay-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(8,18,41,.5);border:1px solid var(--line);}
.pay-list i{color:var(--gold);font-size:1rem;margin-top:3px;}
.pay-list strong{display:block;font-size:.92rem;font-weight:700;margin-bottom:3px;}
.pay-list span{font-size:.85rem;color:var(--muted);}
/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(8,18,41,.45);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;}
.news-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.news-thumb{width:100%;height:158px;object-fit:cover;opacity:.9;}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.news-body .meta{font-size:.75rem;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font-weight:600;}
.news-body h3{font-size:.98rem;font-weight:700;line-height:1.45;margin:0;}
.news-body p{margin:0;font-size:.86rem;color:var(--muted);line-height:1.6;flex:1;}
.news-body .more{font-size:.84rem;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px;}
.empty-note{padding:28px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  color:var(--muted);text-align:center;background:rgba(8,18,41,.4);}
/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(8,18,41,.45);overflow:hidden;}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:700;font-size:.96rem;
  display:flex;align-items:center;justify-content:space-between;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--cyan);transition:transform .25s ease;}
.faq-item[open] summary i{transform:rotate(45deg);}
.faq-item p{margin:0;padding:0 20px 20px;color:var(--muted);font-size:.9rem;line-height:1.7;}
/* final cta */
.final-cta{border:1px solid var(--line-strong);border-radius:var(--radius);
  background:linear-gradient(130deg,rgba(37,99,235,.24),rgba(56,189,248,.1) 60%,rgba(3,7,18,.4));
  padding:44px 34px;text-align:center;box-shadow:var(--shadow);}
.final-cta h2{font-size:clamp(1.35rem,2.3vw,1.9rem);font-weight:900;margin:0 0 14px;}
.final-cta p{max-width:680px;margin:0 auto 26px;color:var(--muted-2);font-size:.98rem;}
/* footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.6),#020509);border-top:1px solid var(--line);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:34px;border-bottom:1px solid var(--line);}
.footer-brand p{color:var(--muted);font-size:.88rem;margin:16px 0 0;line-height:1.7;}
.footer-col h4{font-size:.86rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin:0 0 16px;}
.footer-col a{display:block;font-size:.88rem;color:var(--muted);padding:6px 0;}
.footer-col a:hover{color:var(--cyan);}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:11px;font-size:.86rem;color:var(--muted);line-height:1.6;}
.footer-contact i{color:var(--cyan);margin-top:4px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:22px;
  font-size:.8rem;color:var(--muted);flex-wrap:wrap;}
.age-badge{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:var(--pill);
  border:1px solid var(--line-strong);color:var(--gold);font-weight:800;font-size:.78rem;}
/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:1050;display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--pill);font-weight:700;font-size:.85rem;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;color:#fff;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),
                   linear-gradient(120deg,#38bdf8,#2563eb 55%,#60a5fa);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  animation:fabPulse 3.2s ease-in-out infinite;transition:transform .22s ease,box-shadow .25s ease;}
.fab i{color:var(--cyan);}
.fab:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 0 32px rgba(56,189,248,.7);color:#fff;}
.fab:active{transform:scale(.95) translateY(1px);}
.fab .dot{width:9px;height:9px;border-radius:50%;background:var(--pink);box-shadow:0 0 10px var(--pink);
  animation:dotBlink 1.4s ease-in-out infinite;}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.35);}50%{box-shadow:0 0 30px rgba(56,189,248,.65);}}
@keyframes dotBlink{0%,100%{opacity:1;}50%{opacity:.25;}}
/* responsive */
@media (max-width:1024px){
  .hero-grid,.catalog,.pay-grid{grid-template-columns:1fr;}
  .feature-split{grid-template-columns:1fr;gap:0;}
  .scene-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .data-strip{grid-template-columns:repeat(2,1fr);}
  .data-cell:nth-child(2){border-right:0;}
  .data-cell:nth-child(1),.data-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  section{padding:56px 0;}
  .hero{padding:44px 0 52px;}
  .hero-lead{font-size:.96rem;}
  .sec-head{margin-bottom:30px;}
  .brand-text small{display:none;}
}
@media (max-width:520px){
  .scene-grid,.news-grid,.steps{grid-template-columns:1fr;}
  .data-strip{grid-template-columns:1fr;}
  .data-cell{border-right:0;border-bottom:1px solid var(--line);}
  .data-cell:last-child{border-bottom:0;}
  .game-row{flex-direction:column;align-items:flex-start;}
  .game-row .g-tags{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .final-cta{padding:32px 20px;}
  .fab{left:12px;bottom:88px;padding:11px 15px;}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}
[class*="cta"]::before,
[class*="cta"]::after,
[class*="card"]::before,
[class*="card"]::after,
.overlay,
.backdrop,
.mask {
    pointer-events: none !important;
    z-index: 0 !important;
}

[class*="cta"] *,
[class*="card"] * {
    position: relative;
    z-index: 2;
    opacity: 1 !important;
    filter: none !important;
}

[class*="cta"] h1, [class*="cta"] h2, [class*="cta"] h3,
[class*="cta"] p, [class*="cta"] span,
[class*="cta"] a, [class*="cta"] button {
    color: #ffffff !important;
    pointer-events: auto !important;
}