/* roulang page: index */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-deep:#050C1C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.085);
  --panel:rgba(10,20,42,.72);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.42);
  --accent:#38BDF8;
  --accent-2:#2563EB;
  --accent-3:#22D3EE;
  --gold:#F5C451;
  --gold-2:#FCD34D;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow:0 20px 50px rgba(2,6,23,.6);
  --glow:0 0 24px rgba(56,189,248,.32);
  --container:1180px;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.65;
  color:var(--text);background:var(--bg);overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:70px 70px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.02em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.container{width:min(100% - 32px,var(--container));margin-inline:auto;position:relative;z-index:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 25px;border-radius:999px;font-weight:700;font-size:.94rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn i{font-size:.92em}
.btn-primary{
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);color:#02101F;
  box-shadow:0 0 0 1px rgba(56,189,248,.55),0 14px 34px rgba(37,99,235,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.8),0 18px 42px rgba(56,189,248,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(56,189,248,.13);border-color:var(--accent);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-2) 0%,#F59E0B 100%);color:#2A1802;box-shadow:0 14px 32px rgba(245,158,11,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.45)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn:active{transform:translateY(1px) scale(.985)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.08rem;letter-spacing:-.03em;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-size:.95rem;font-weight:900;
  box-shadow:var(--glow);
}
.logo-text{background:linear-gradient(92deg,#FFFFFF 12%,#7DD3FC 60%,#F5C451 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-text small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-links a:hover{color:#fff;background:var(--glass)}
.nav-links a.active{
  color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(37,99,235,.18));
  border-color:var(--line-strong);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:#fff;cursor:pointer;font-size:1.05rem;
}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line)}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:13px 16px;border-radius:12px;font-weight:600;color:var(--muted);
  border:1px solid transparent;
}
.mobile-menu a:hover,.mobile-menu a.active{color:#fff;background:var(--glass);border-color:var(--line)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:70px 0 78px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/2f6f601a414b3a73.jpg') center/cover no-repeat;
  transform:scale(1.04);filter:saturate(.9);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(90% 70% at 12% 10%,rgba(56,189,248,.2),transparent 60%),
    radial-gradient(70% 60% at 92% 78%,rgba(245,196,81,.16),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.94) 55%,var(--bg) 100%);
}
.hero-inner{display:grid;grid-template-columns:1.35fr 1fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  font-size:.74rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 10px #4ADE80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  margin:22px 0 18px;font-size:clamp(1.72rem,3.3vw,2.85rem);font-weight:900;letter-spacing:-.03em;
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7DD3FC,#38BDF8 45%,#F5C451);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#CBD5E1;font-size:1.02rem;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.88rem;color:#B8C4D9}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points i{color:var(--accent)}

.tier-panel{
  padding:26px 24px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--line-strong);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.tier-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.tier-head h2{font-size:1.05rem;font-weight:800;color:#E2E8F0}
.tier-live{
  font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:#0B1B02;background:linear-gradient(135deg,#A3E635,#4ADE80);
  padding:5px 11px;border-radius:999px;
}
.tier-list{display:grid;gap:10px}
.tier-list li{
  display:flex;align-items:center;gap:13px;padding:12px 14px;border-radius:14px;
  background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.06);
  transition:border-color .2s,background .2s,transform .2s;
}
.tier-list li:hover{border-color:var(--line-strong);background:rgba(56,189,248,.09);transform:translateX(3px)}
.tier-badge{
  min-width:74px;text-align:center;padding:5px 9px;border-radius:9px;
  font-size:.75rem;font-weight:800;letter-spacing:.03em;
}
.b-bac{background:rgba(203,213,225,.14);color:#E2E8F0;border:1px solid rgba(203,213,225,.28)}
.b-vang{background:rgba(245,196,81,.15);color:var(--gold-2);border:1px solid rgba(245,196,81,.35)}
.b-bachkim{background:rgba(125,211,252,.15);color:#7DD3FC;border:1px solid rgba(125,211,252,.35)}
.b-kimcuong{background:linear-gradient(135deg,rgba(167,139,250,.2),rgba(56,189,248,.2));color:#C4B5FD;border:1px solid rgba(167,139,250,.4)}
.tier-desc{font-size:.82rem;color:var(--muted);line-height:1.45}
.tier-panel .btn{width:100%;margin-top:18px}

/* ---------- Metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:-34px;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(150deg,rgba(12,23,46,.95),rgba(5,12,28,.95));
  border:1px solid var(--line);box-shadow:var(--shadow);position:relative;z-index:2;
  backdrop-filter:blur(14px);
}
.metric{padding:26px 22px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:900;color:#fff;letter-spacing:-.02em}
.metric b span{color:var(--accent)}
.metric p{margin-top:6px;font-size:.82rem;color:var(--muted)}

/* ---------- Sections ---------- */
.section{padding:78px 0;position:relative}
.section-alt{background:linear-gradient(180deg,transparent,rgba(8,18,41,.72) 18%,rgba(8,18,41,.72) 82%,transparent)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.42rem,2.4vw,2.05rem)}
.section-head p{margin-top:14px;color:var(--muted);font-size:1rem}
.tag{
  display:inline-block;padding:5px 13px;border-radius:999px;font-size:.7rem;font-weight:800;
  letter-spacing:.13em;text-transform:uppercase;color:#BAE6FD;
  background:rgba(56,189,248,.1);border:1px solid var(--line-strong);margin-bottom:16px;
}
.tag.gold{color:var(--gold-2);background:rgba(245,196,81,.1);border-color:rgba(245,196,81,.35)}

/* ---------- Split blocks ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .split-media{order:2}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:.8rem;color:#DDE6F3;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.92));
}
.feature-list{display:grid;gap:16px;margin-top:26px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list .ic{
  flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--accent);font-size:.95rem;
}
.feature-list h3{font-size:.98rem;font-weight:700;margin-bottom:3px}
.feature-list p{font-size:.88rem;color:var(--muted)}

/* ---------- Commission ---------- */
.commission-wrap{display:grid;grid-template-columns:.85fr 1.4fr;gap:42px;align-items:start}
.commission-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.comm-card{
  padding:26px 22px;border-radius:var(--radius);position:relative;overflow:hidden;
  background:linear-gradient(165deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:transform .25s,border-color .25s,box-shadow .25s;
}
.comm-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 20px 44px rgba(37,99,235,.28)}
.comm-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),transparent)}
.comm-card.g2::before{background:linear-gradient(90deg,var(--accent-3),transparent)}
.comm-card.g3::before{background:linear-gradient(90deg,var(--gold),transparent)}
.comm-card .lvl{font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.comm-card .rate{font-size:clamp(1.9rem,3.4vw,2.5rem);font-weight:900;letter-spacing:-.03em;margin:8px 0 4px;background:linear-gradient(120deg,#7DD3FC,#38BDF8);-webkit-background-clip:text;background-clip:text;color:transparent}
.comm-card.g3 .rate{background:linear-gradient(120deg,var(--gold-2),#F59E0B);-webkit-background-clip:text;background-clip:text;color:transparent}
.comm-card p{font-size:.85rem;color:var(--muted);margin-top:10px}
.comm-note{
  margin-top:24px;padding:18px 20px;border-radius:var(--radius);font-size:.86rem;color:#CBD5E1;
  background:rgba(56,189,248,.07);border:1px dashed var(--line-strong);
}

/* ---------- Tier compare ---------- */
.tier-table{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:rgba(10,20,42,.55)}
.tier-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.2fr;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line);align-items:center;transition:background .2s}
.tier-row:last-child{border-bottom:0}
.tier-row:hover{background:rgba(56,189,248,.055)}
.tier-row.head{background:rgba(56,189,248,.09);font-size:.76rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase;color:#BAE6FD}
.tier-row .val{font-size:.9rem;color:#DCE5F2;font-weight:600}
.tier-row .lbl{display:none;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2);font-weight:700}

/* ---------- Materials ---------- */
.mat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mat-card{
  padding:24px 20px;border-radius:var(--radius);background:rgba(255,255,255,.035);
  border:1px solid var(--line);transition:border-color .22s,transform .22s,background .22s;
}
.mat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);background:rgba(56,189,248,.07)}
.mat-card i{font-size:1.3rem;color:var(--accent);margin-bottom:14px;display:block}
.mat-card h3{font-size:.96rem;margin-bottom:7px}
.mat-card p{font-size:.84rem;color:var(--muted)}

/* ---------- Payout ---------- */
.payout-list{display:grid;gap:14px;margin-top:26px}
.payout-list li{
  display:flex;gap:13px;align-items:flex-start;padding:15px 18px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);
}
.payout-list i{color:var(--gold);margin-top:3px}
.payout-list strong{display:block;font-size:.92rem;margin-bottom:2px}
.payout-list span{font-size:.84rem;color:var(--muted)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  padding:8px 16px;border-radius:999px;font-size:.8rem;font-weight:700;color:#E2E8F0;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.chip i{color:var(--accent);margin-right:6px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{
  padding:28px 24px;border-radius:var(--radius);position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:border-color .25s,transform .25s;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-5px)}
.step-num{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-weight:900;font-size:1rem;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;margin-bottom:18px;
  box-shadow:0 10px 24px rgba(37,99,235,.35);
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.87rem;color:var(--muted)}

/* ---------- Cases ---------- */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  padding:26px 22px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
}
.case-card:nth-child(2){transform:translateY(18px)}
.case-top{display:flex;align-items:center;gap:13px;margin-bottom:16px}
.case-avatar{
  width:46px;height:46px;border-radius:50%;overflow:hidden;flex-shrink:0;border:2px solid var(--line-strong);
}
.case-avatar img{width:100%;height:100%;object-fit:cover}
.case-top b{display:block;font-size:.92rem}
.case-top span{font-size:.78rem;color:var(--muted)}
.case-quote{font-size:.9rem;color:#CBD5E1;line-height:1.7}
.case-stat{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:.82rem;color:var(--muted)}
.case-stat b{color:var(--accent);font-size:1.05rem;display:block;margin-bottom:2px}

/* ---------- Security ---------- */
.sec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 34px;margin-top:8px}
.sec-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.sec-item i{font-size:1.15rem;color:var(--accent-3);margin-top:4px}
.sec-item h3{font-size:.95rem;margin-bottom:5px}
.sec-item p{font-size:.86rem;color:var(--muted)}

/* ---------- App download ---------- */
.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.app-card{
  display:flex;gap:22px;padding:28px;border-radius:var(--radius-lg);align-items:center;
  background:linear-gradient(150deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:border-color .25s,transform .25s,box-shadow .25s;
}
.app-card:hover{border-color:var(--line-strong);transform:translateY(-5px);box-shadow:0 22px 46px rgba(37,99,235,.26)}
.app-card .app-ico{
  flex:0 0 62px;height:62px;border-radius:18px;display:grid;place-items:center;font-size:1.6rem;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--accent);
}
.app-card h3{font-size:1.06rem;margin-bottom:7px}
.app-card p{font-size:.86rem;color:var(--muted);margin-bottom:14px}

/* ---------- Category wall ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);position:relative;
  background:rgba(10,20,42,.6);transition:border-color .25s,transform .25s;
}
.cat-card:hover{border-color:var(--line-strong);transform:translateY(-5px)}
.cat-card img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.82;transition:opacity .3s,transform .4s}
.cat-card:hover img{opacity:1;transform:scale(1.04)}
.cat-body{padding:22px 22px 24px}
.cat-body h3{font-size:1.02rem;margin-bottom:9px}
.cat-body p{font-size:.86rem;color:var(--muted);margin-bottom:16px}
.cat-link{font-size:.85rem;font-weight:700;color:var(--accent);display:inline-flex;align-items:center;gap:7px}
.cat-link i{transition:transform .22s}
.cat-card:hover .cat-link i{transform:translateX(4px)}

/* ---------- News ---------- */
.news-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:34px;align-items:start}
.news-list{display:grid;gap:18px}
.news-item{
  display:grid;grid-template-columns:168px 1fr;gap:20px;padding:16px;border-radius:var(--radius);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .22s,background .22s,transform .22s;
}
.news-item:hover{border-color:var(--line-strong);background:rgba(56,189,248,.06);transform:translateX(4px)}
.news-thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/11}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:.74rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;font-weight:700;margin-bottom:8px}
.news-meta span{color:var(--accent)}
.news-item h3{font-size:1rem;margin-bottom:8px;line-height:1.4}
.news-item p{font-size:.85rem;color:var(--muted)}
.news-side{
  padding:24px;border-radius:var(--radius-lg);background:rgba(10,20,42,.62);border:1px solid var(--line);
}
.news-side h3{font-size:.95rem;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.side-item{display:flex;gap:13px;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.18)}
.side-item:last-child{border-bottom:0}
.side-item b{
  flex:0 0 26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:.78rem;
  background:rgba(56,189,248,.14);color:var(--accent);border:1px solid var(--line-strong);
}
.side-item a{font-size:.85rem;color:#D6DEEA;line-height:1.5;transition:color .2s}
.side-item a:hover{color:var(--accent)}
.empty-note{padding:22px;border-radius:var(--radius);background:rgba(255,255,255,.03);border:1px dashed var(--line);font-size:.88rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.03);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s,background .22s;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:700;font-size:.98rem;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--accent);font-weight:700}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:.9rem}

/* ---------- Final CTA ---------- */
.cta-panel{
  padding:52px 46px;border-radius:var(--radius-lg);text-align:center;position:relative;overflow:hidden;
  background:
    radial-gradient(70% 120% at 50% 0%,rgba(56,189,248,.16),transparent 62%),
    linear-gradient(160deg,rgba(12,23,46,.95),rgba(5,12,28,.95));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(1.4rem,2.4vw,2rem)}
.cta-panel > p{margin:16px auto 30px;max-width:620px;color:var(--muted);font-size:.98rem}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:720px;margin:0 auto}
.cta-form input,.cta-form select{
  flex:1 1 210px;padding:14px 20px;border-radius:999px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:#fff;font-size:.9rem;transition:border-color .2s,background .2s;
}
.cta-form input::placeholder{color:var(--muted-2)}
.cta-form input:focus,.cta-form select:focus{border-color:var(--accent);background:rgba(56,189,248,.08);outline:none}
.cta-form select option{background:#081229}
.cta-form .btn{flex:0 0 auto}
.form-note{margin-top:16px;font-size:.8rem;color:var(--muted-2)}
.form-msg{margin-top:16px;font-size:.88rem;color:#4ADE80;display:none}
.form-msg.show{display:block}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:40px;background:linear-gradient(180deg,rgba(5,12,28,.4),#020617 40%);
  border-top:1px solid var(--line);position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:38px;padding:58px 0 42px}
.footer-brand p{margin:16px 0 18px;font-size:.87rem;color:var(--muted);max-width:320px}
.badge-18{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:999px;
  border:1px solid rgba(245,196,81,.4);background:rgba(245,196,81,.08);
  font-size:.76rem;font-weight:800;color:var(--gold-2);letter-spacing:.06em;
}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.14em;color:#CBD5E1;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:.86rem;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;font-size:.8rem;color:var(--muted-2);
}
.footer-bottom a{color:var(--muted-2)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:70;
  width:58px;height:58px;border-radius:999px;display:grid;place-items:center;
  background:rgba(7,10,22,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,10,22,.86),rgba(7,10,22,.86)),
                   linear-gradient(135deg,#22D3EE,#A3E635);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#7DD3FC;font-size:1.22rem;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  transition:transform .22s,box-shadow .28s,color .2s;
  opacity:.82;
}
.fab:hover{transform:scale(1.09);opacity:1;color:#A3E635;box-shadow:0 0 34px rgba(34,211,238,.7)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{
  position:absolute;top:2px;right:4px;width:12px;height:12px;border-radius:50%;
  background:#F43F5E;border:2px solid #030712;animation:pulse 1.6s infinite;
}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .commission-wrap{grid-template-columns:1fr;gap:30px}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .tier-row{grid-template-columns:1fr 1fr 1fr 1fr}
}
@media (max-width:980px){
  .nav-links{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-actions{margin-left:auto}
}
@media (max-width:860px){
  .section{padding:60px 0}
  .metrics{grid-template-columns:1fr 1fr;margin-top:-26px}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .split{grid-template-columns:1fr;gap:30px}
  .split.rev .split-media{order:0}
  .commission-cards{grid-template-columns:1fr}
  .mat-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .cases{grid-template-columns:1fr}
  .case-card:nth-child(2){transform:none}
  .sec-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .tier-row{grid-template-columns:1fr;gap:8px;padding:18px 20px}
  .tier-row.head{display:none}
  .tier-row .lbl{display:block}
  .tier-row .val{display:flex;justify-content:space-between;gap:12px}
}
@media (max-width:620px){
  .nav{height:64px;gap:12px}
  .logo-text small{display:none}
  .nav-actions .btn{padding:9px 15px;font-size:.82rem}
  .hero{padding:48px 0 62px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .mat-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
  .cta-panel{padding:36px 22px}
  .cta-form{flex-direction:column}
  .cta-form input,.cta-form select,.cta-form .btn{width:100%;flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 32px}
  .fab{width:52px;height:52px;bottom:86px;left:12px;font-size:1.1rem}
}

.faq-wrap{display:grid;gap:14px;margin-top:30px}
        .qa-item{border:1px solid var(--line);border-radius:14px;background:rgba(9,17,36,.72);overflow:hidden;transition:border-color .25s,transform .25s}
        .qa-item:hover{border-color:rgba(56,189,248,.5);transform:translateY(-2px)}
        .qa-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:18px 22px;font-weight:600;font-size:1.02rem;color:var(--text)}
        .qa-item summary::-webkit-details-marker{display:none}
        .qa-item summary i{color:var(--accent);margin-top:4px;transition:transform .25s}
        .qa-item[open] summary i{transform:rotate(180deg)}
        .qa-item p{padding:0 22px 20px;margin:0;color:var(--muted);line-height:1.7;font-size:.95rem}
        .signup-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
        .signup-side{display:grid;gap:14px}
        .signup-side .side-note{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:rgba(12,22,44,.6)}
        .signup-side .side-note i{color:var(--accent);margin-top:3px}
        .signup-side .side-note b{display:block;color:var(--text);margin-bottom:4px;font-size:.98rem}
        .signup-side .side-note span{color:var(--muted);font-size:.9rem;line-height:1.65}
        .form-field{display:flex;flex-direction:column;gap:7px;flex:1 1 220px}
        .form-field label{font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
        .form-field input,.form-field select{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);background:rgba(6,12,28,.85);color:var(--text);font-size:.95rem;font-family:inherit;transition:border-color .2s,box-shadow .2s}
        .form-field input::placeholder{color:rgba(148,163,184,.75)}
        .form-field input:focus,.form-field select:focus{outline:none;border-color:#38BDF8;box-shadow:0 0 0 3px rgba(56,189,248,.18)}
        .form-consent{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:.86rem;line-height:1.6;margin:16px 0 4px}
        .form-consent input{width:18px;height:18px;accent-color:#2563EB;margin-top:2px}
        .form-hint{color:var(--muted);font-size:.85rem;margin-top:12px}
        .social-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
        .social-row a{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line);color:var(--muted);transition:.22s}
        .social-row a:hover{color:#fff;border-color:rgba(56,189,248,.55);transform:translateY(-2px)}
        .fab-dot{position:absolute;top:-2px;right:-2px;width:12px;height:12px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px rgba(34,211,238,.9);animation:pulseDot 1.8s infinite}
        @keyframes pulseDot{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.65}}
        .footer-col h4{font-size:.95rem;margin-bottom:14px;color:var(--text);letter-spacing:.02em}
        .footer-col a{display:block;color:var(--muted);font-size:.9rem;padding:6px 0;transition:color .2s,transform .2s}
        .footer-col a:hover{color:#38BDF8;transform:translateX(3px)}
        .footer-note{color:var(--muted);font-size:.86rem;line-height:1.7;max-width:340px}
        .footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:22px 0 30px;color:var(--muted);font-size:.84rem}
        .footer-bottom b{color:var(--text)}
        .age-badge{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2px solid rgba(56,189,248,.6);color:#fff;font-weight:700;font-size:.85rem;letter-spacing:.02em}
        @media (max-width:900px){.signup-grid{grid-template-columns:1fr}}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-deep:#050C1C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.085);
  --panel:rgba(10,20,42,.72);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.42);
  --accent:#38BDF8;
  --accent-2:#2563EB;
  --accent-3:#22D3EE;
  --gold:#F5C451;
  --gold-2:#FCD34D;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow:0 20px 50px rgba(2,6,23,.6);
  --glow:0 0 24px rgba(56,189,248,.32);
  --container:1180px;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.65;
  color:var(--text);background:var(--bg);overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:70px 70px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.container{width:min(100% - 32px,var(--container));margin-inline:auto;position:relative;z-index:1}
/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 25px;border-radius:999px;font-weight:700;font-size:.94rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn i{font-size:.92em}
.btn-primary{
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);color:#02101F;
  box-shadow:0 0 0 1px rgba(56,189,248,.55),0 14px 34px rgba(37,99,235,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.8),0 18px 42px rgba(56,189,248,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(56,189,248,.13);border-color:var(--accent);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-2) 0%,#F59E0B 100%);color:#2A1802;box-shadow:0 14px 32px rgba(245,158,11,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.45)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn:active{transform:translateY(1px) scale(.985)}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.08rem;letter-spacing:-.03em;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-size:.95rem;font-weight:900;
  box-shadow:var(--glow);
}
.logo-text{background:linear-gradient(92deg,#FFFFFF 12%,#7DD3FC 60%,#F5C451 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-text small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-links a:hover{color:#fff;background:var(--glass)}
.nav-links a.active{
  color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(37,99,235,.18));
  border-color:var(--line-strong);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:#fff;cursor:pointer;font-size:1.05rem;
}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line)}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:13px 16px;border-radius:12px;font-weight:600;color:var(--muted);
  border:1px solid transparent;
}
.mobile-menu a:hover,.mobile-menu a.active{color:#fff;background:var(--glass);border-color:var(--line)}
/* ---------- Article hero ---------- */
.article-hero{position:relative;padding:44px 0 0;isolation:isolate}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(80% 60% at 8% 0%,rgba(56,189,248,.18),transparent 60%),
    radial-gradient(60% 55% at 95% 30%,rgba(37,99,235,.16),transparent 62%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:.82rem;color:var(--muted-2)}
.crumbs a{transition:color .2s}
.crumbs a:hover{color:var(--accent)}
.crumbs i{font-size:.65rem;color:var(--muted-2)}
.article-head{max-width:920px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.article-head h1{
  margin:16px 0 16px;font-size:clamp(1.62rem,3.1vw,2.55rem);font-weight:900;
  letter-spacing:-.03em;line-height:1.24;
}
.article-head .lead{color:#CBD5E1;font-size:1.02rem;margin:0 0 18px;max-width:820px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:.86rem}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row i{color:var(--accent)}
.cover{margin:32px 0 0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.cover img{width:100%;aspect-ratio:16/6.2;object-fit:cover}
.cover figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 26px 16px;font-size:.85rem;color:#E2E8F0;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.94));
}
/* ---------- Article layout ---------- */
.article-main{padding:52px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:46px;align-items:start}
.article-body{min-width:0;font-size:1.02rem;color:#CBD5E1;line-height:1.7}
.article-body h2{font-size:1.5rem;color:#fff;margin:40px 0 14px;font-weight:800;letter-spacing:-.02em;line-height:1.35}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:1.16rem;color:#fff;margin:28px 0 10px;font-weight:700}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:9px}
.article-body li::marker{color:var(--accent)}
.article-body strong{color:#fff}
.article-body img{border-radius:var(--radius);border:1px solid var(--line);margin:24px 0}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--accent);
  background:var(--glass);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#E2E8F0;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 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:var(--glass-strong);color:#fff;font-weight:700}
.pull-quote{
  margin:40px 0 0;padding:30px 34px;border-radius:var(--radius-lg);position:relative;
  background:linear-gradient(135deg,rgba(56,189,248,.13),rgba(37,99,235,.07));
  border:1px solid var(--line-strong);
}
.pull-quote::before{
  content:"\201C";position:absolute;top:4px;left:18px;font-family:Georgia,serif;
  font-size:3.6rem;line-height:1;color:rgba(56,189,248,.35);
}
.pull-quote p{margin:0;font-size:1.14rem;font-weight:600;color:#E2E8F0;line-height:1.6}
.pull-quote span{display:block;margin-top:12px;font-size:.84rem;color:var(--muted);font-weight:500}
/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.side-card h3{font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:#BAE6FD;margin:0 0 16px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.side-list li{display:flex;gap:11px;font-size:.9rem;color:var(--muted);line-height:1.55}
.side-list i{color:var(--accent);margin-top:5px;font-size:.82rem}
.side-card .btn{width:100%;margin-top:18px}
.pay-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.pay-chips span{
  font-size:.76rem;font-weight:600;color:#BAE6FD;padding:6px 11px;border-radius:999px;
  background:rgba(56,189,248,.09);border:1px solid var(--line);
}
/* ---------- Sections ---------- */
.section{padding:72px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(5,12,28,.35));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-inline:auto;text-align:center}
.section-head h2{font-size:clamp(1.36rem,2.3vw,1.95rem);margin:12px 0 12px;font-weight:800;letter-spacing:-.02em;line-height:1.32}
.section-head p{margin:0;color:var(--muted)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(12px);transition:transform .22s,border-color .22s,box-shadow .28s;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 42px rgba(2,6,23,.55)}
.stat-card i{font-size:1.05rem;color:var(--accent)}
.stat-num{
  display:block;margin:12px 0 4px;font-size:1.7rem;font-weight:900;letter-spacing:-.02em;
  background:linear-gradient(100deg,#7DD3FC,#38BDF8 45%,#F5C451);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:.86rem;color:var(--muted);line-height:1.55}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px 24px;backdrop-filter:blur(12px);
  transition:transform .22s,border-color .22s,box-shadow .28s;
}
.flow-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 42px rgba(2,6,23,.55)}
.flow-no{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,rgba(56,189,248,.25),rgba(37,99,235,.2));
  border:1px solid var(--line-strong);color:#BAE6FD;font-weight:800;font-size:.9rem;
}
.flow-card h3{font-size:1.04rem;margin:16px 0 8px;font-weight:700;color:#fff}
.flow-card p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.6}
.app-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.app-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.app-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:16px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list i{
  flex-shrink:0;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass-strong);border:1px solid var(--line);color:var(--accent);font-size:.95rem;
}
.feature-list b{display:block;color:#fff;font-size:.98rem;margin-bottom:3px}
.feature-list span{font-size:.9rem;color:var(--muted);line-height:1.6}
.secure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.secure-item{
  border-left:2px solid var(--line-strong);padding:6px 0 6px 20px;
}
.secure-item h3{font-size:1.02rem;margin:0 0 8px;color:#fff;font-weight:700}
.secure-item p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.62}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.topic-card{
  display:flex;flex-direction:column;gap:14px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;backdrop-filter:blur(12px);
  transition:transform .22s,border-color .22s,box-shadow .28s;
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 20px 46px rgba(2,6,23,.6),0 0 22px rgba(56,189,248,.18)}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.topic-body{padding:0 22px 22px}
.topic-body h3{margin:0 0 8px;font-size:1.04rem;color:#fff;font-weight:700}
.topic-body p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.6}
.topic-link{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:.86rem;font-weight:700;color:var(--accent)}
.topic-link i{transition:transform .22s}
.topic-card:hover .topic-link i{transform:translateX(4px)}
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:1rem;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:"\2b";font-family:inherit;font-weight:700;color:var(--accent);font-size:1.05rem;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 22px 20px;font-size:.93rem;color:var(--muted);line-height:1.66}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line-strong);
  padding:52px 44px;text-align:center;box-shadow:var(--shadow);isolation:isolate;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/daf9270ef4ea9486.jpg') center/cover no-repeat;
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(37,99,235,.55),rgba(3,7,18,.92) 62%);
}
.cta-band h2{margin:0 0 14px;font-size:clamp(1.4rem,2.5vw,2.05rem);font-weight:900;letter-spacing:-.02em}
.cta-band p{margin:0 auto 26px;max-width:660px;color:#CBD5E1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:20px;font-size:.82rem;color:var(--muted)}
/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;display:inline-flex;align-items:center;gap:9px;
  padding:13px 20px;min-height:50px;border-radius:999px;font-weight:700;font-size:.85rem;color:#E0F2FE;
  background-image:linear-gradient(rgba(7,10,20,.86),rgba(7,10,20,.86)),linear-gradient(120deg,#38BDF8,#22D3EE);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.82;
  transition:opacity .25s,transform .25s,box-shadow .25s;
}
.fab i{color:#7DD3FC}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.03);box-shadow:0 0 32px rgba(6,182,212,.7)}
.fab:active{transform:translateY(0) scale(.97)}
/* ---------- Footer ---------- */
.site-footer{
  margin-top:80px;background:linear-gradient(180deg,var(--bg-deep),#020509);
  border-top:1px solid var(--line);padding:62px 0 26px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:34px}
.footer-brand .logo{margin-bottom:6px}
.footer-note{color:var(--muted);font-size:.9rem;line-height:1.7;max-width:350px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--muted);
  transition:color .22s,background .22s,border-color .22s,transform .22s;
}
.social-row a:hover{color:#fff;border-color:var(--line-strong);background:rgba(56,189,248,.14);transform:translateY(-2px)}
.footer-col h4{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:#BAE6FD;margin:0 0 14px}
.footer-col a{display:block;padding:6px 0;color:var(--muted);font-size:.9rem;transition:color .2s,transform .2s}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--muted-2);font-size:.84rem;
}
.footer-bottom b{color:#CBD5E1}
.age-badge{
  border:1px solid var(--line-strong);color:#BAE6FD;border-radius:999px;
  padding:4px 12px;font-weight:700;font-size:.76rem;
}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:38px}
  .article-side{position:static}
  .stat-grid,.flow-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:1fr;gap:28px}
  .secure-grid{grid-template-columns:1fr 1fr}
  .topic-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .nav-links{display:none}
  .nav-toggle{display:grid;place-items:center}
}
@media (max-width:768px){
  .nav{height:auto;padding:12px 0;flex-wrap:wrap}
  .section{padding:56px 0}
  .topic-grid{grid-template-columns:1fr}
  .secure-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-band{padding:38px 22px}
  .cover img{aspect-ratio:16/9}
}
@media (max-width:520px){
  .stat-grid,.flow-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-head h1{font-size:1.55rem}
  .btn{padding:12px 20px;font-size:.9rem}
  .nav-actions .btn{padding:8px 14px;font-size:.8rem}
  .fab{padding:11px 16px;font-size:.8rem;bottom:88px}
  .article-body{font-size:.98rem}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-deep:#050C1C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.085);
  --panel:rgba(10,20,42,.72);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.42);
  --accent:#38BDF8;
  --accent-2:#2563EB;
  --accent-3:#22D3EE;
  --gold:#F5C451;
  --gold-2:#FCD34D;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow:0 20px 50px rgba(2,6,23,.6);
  --glow:0 0 24px rgba(56,189,248,.32);
  --container:1180px;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.65;
  color:var(--text);background:var(--bg);overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:70px 70px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:10px}
::selection{background:rgba(56,189,248,.35)}
.container{width:min(100% - 32px,var(--container));margin-inline:auto;position:relative;z-index:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 25px;border-radius:999px;font-weight:700;font-size:.94rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn i{font-size:.92em}
.btn-primary{
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);color:#02101F;
  box-shadow:0 0 0 1px rgba(56,189,248,.55),0 14px 34px rgba(37,99,235,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.8),0 18px 42px rgba(56,189,248,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(56,189,248,.13);border-color:var(--accent);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-2) 0%,#F59E0B 100%);color:#2A1802;box-shadow:0 14px 32px rgba(245,158,11,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.45)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn-block{width:100%}
.btn:active{transform:translateY(1px) scale(.985)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.08rem;letter-spacing:-.03em;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-size:.95rem;font-weight:900;
  box-shadow:var(--glow);
}
.logo-text{background:linear-gradient(92deg,#FFFFFF 12%,#7DD3FC 60%,#F5C451 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-text small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-links a:hover{color:#fff;background:var(--glass)}
.nav-links a.active{
  color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(37,99,235,.18));
  border-color:var(--line-strong);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:#fff;cursor:pointer;font-size:1.05rem;place-items:center;
}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 16px;border-radius:12px;font-weight:600;color:var(--muted);border:1px solid transparent}
.mobile-menu a:hover,.mobile-menu a.active{color:#fff;background:var(--glass);border-color:var(--line)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:66px 0 74px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/daf9270ef4ea9486.jpg') center/cover no-repeat;
  transform:scale(1.04);filter:saturate(.92);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(90% 70% at 10% 8%,rgba(56,189,248,.22),transparent 62%),
    radial-gradient(70% 60% at 94% 80%,rgba(245,196,81,.15),transparent 64%),
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.95) 58%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:48px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  font-size:.73rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 10px #4ADE80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  margin:20px 0 16px;font-size:clamp(1.7rem,3.2vw,2.7rem);font-weight:900;
  letter-spacing:-.03em;line-height:1.2;
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7DD3FC,#38BDF8 45%,#F5C451);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#CBD5E1;font-size:1.02rem;margin:0;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:.88rem;color:#B6C6DA}
.hero-points span i{color:var(--accent);margin-right:7px}
.hero-panel{
  position:relative;padding:26px;border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-panel h2{margin:0 0 6px;font-size:1.06rem;font-weight:800}
.hero-panel p{margin:0 0 18px;font-size:.88rem;color:var(--muted)}
.panel-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.panel-list li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:.9rem;
}
.panel-list li i{color:var(--accent-3);margin-top:4px}
.panel-list li b{display:block;font-size:.94rem}
.panel-list li span{color:var(--muted);font-size:.84rem}
.panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.82rem;color:var(--muted)
}

/* ---------- Sections ---------- */
.section{padding:72px 0;position:relative;z-index:1}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.88),rgba(3,7,18,.94));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:36px}
.kicker{
  display:block;font-size:.72rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.section-title{margin:0 0 14px;font-size:clamp(1.38rem,2.4vw,2rem);font-weight:800;letter-spacing:-.02em;line-height:1.28}
.section-intro{margin:0;color:var(--muted);font-size:.98rem}
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}

/* ---------- Cards ---------- */
.card{
  position:relative;padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .22s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.card-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(56,189,248,.24),rgba(37,99,235,.16));
  border:1px solid var(--line-strong);color:#BAE6FD;font-size:1.1rem;
}
.card h3{margin:0 0 10px;font-size:1.08rem;font-weight:800;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:.92rem}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.12);border:1px solid var(--line-strong);margin-bottom:14px;
}
.tag-gold{color:#FDE68A;background:rgba(245,196,81,.12);border-color:rgba(245,196,81,.4)}
.check-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:9px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:#C7D3E2}
.check-list li i{color:var(--accent-3);margin-top:4px;font-size:.82rem}

/* ---------- Steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line);transition:border-color .25s,transform .22s;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.step-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-weight:900;font-size:1rem;
}
.step h3{margin:0 0 8px;font-size:1rem;font-weight:800}
.step p{margin:0;color:var(--muted);font-size:.89rem}
.step-meta{
  display:block;margin-top:14px;font-size:.74rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--accent);
}

/* ---------- Metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(56,189,248,.14),rgba(255,255,255,.02));
  border:1px solid var(--line);
}
.metric-value{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:900;letter-spacing:-.03em;line-height:1.1;color:#fff}
.metric-value small{font-size:.5em;font-weight:700;color:var(--accent-3);margin-left:4px}
.metric-label{display:block;margin-top:10px;font-size:.86rem;color:var(--muted)}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.scene-list{list-style:none;margin:0;padding:0}
.scene-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line);
}
.scene-list li:last-child{border-bottom:0}
.scene-list i{
  flex-shrink:0;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:#BAE6FD;font-size:.95rem;
}
.scene-list b{display:block;font-size:.98rem;margin-bottom:4px}
.scene-list span{color:var(--muted);font-size:.9rem}
.media-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.92));
  font-size:.86rem;color:#D8E4F2;
}

/* ---------- Security + table ---------- */
.secure-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.secure-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.secure-list li{
  padding:16px 18px;border-radius:15px;border:1px solid var(--line);
  background:rgba(255,255,255,.035);font-size:.9rem;color:#C7D3E2;
}
.secure-list li b{display:block;color:#fff;font-size:.95rem;margin-bottom:4px}
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(8,18,41,.55)}
table.compare{width:100%;border-collapse:collapse;min-width:520px}
table.compare th,table.compare td{padding:15px 18px;text-align:left;font-size:.88rem;border-bottom:1px solid var(--line)}
table.compare thead th{
  background:rgba(56,189,248,.1);color:#BAE6FD;font-size:.76rem;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase;
}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:rgba(56,189,248,.06)}
table.compare td:first-child{color:#fff;font-weight:600}
table.compare td{color:var(--muted)}

/* ---------- Perks ---------- */
.perk{
  position:relative;padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(245,196,81,.12),rgba(255,255,255,.02));
  border:1px solid rgba(245,196,81,.28);
  transition:transform .22s,border-color .25s,box-shadow .3s;
}
.perk:hover{transform:translateY(-4px);border-color:rgba(245,196,81,.6);box-shadow:0 0 26px rgba(245,196,81,.2)}
.perk h3{margin:0 0 10px;font-size:1.05rem;font-weight:800;color:#FDE68A}
.perk p{margin:0;color:var(--muted);font-size:.9rem}
.perk .perk-note{display:block;margin-top:14px;font-size:.8rem;color:var(--muted-2)}

/* ---------- Channels ---------- */
.channels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.channel{
  display:flex;flex-direction:column;gap:10px;padding:24px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(56,189,248,.13),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:transform .22s,border-color .25s,box-shadow .3s;
}
.channel:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.channel i{font-size:1.15rem;color:#BAE6FD}
.channel b{font-size:1.02rem}
.channel span{font-size:.86rem;color:var(--muted)}
.channel .go{margin-top:8px;font-size:.82rem;font-weight:700;color:var(--accent-3);letter-spacing:.06em;text-transform:uppercase}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:rgba(255,255,255,.035);transition:border-color .25s,background .25s;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(56,189,248,.07)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;font-size:.98rem;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.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(--accent);flex-shrink:0;transition:transform .25s;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{margin:0;padding:0 22px 20px;color:var(--muted);font-size:.92rem}

/* ---------- CTA / Form ---------- */
.cta-band{
  position:relative;padding:64px 0;border-top:1px solid var(--line);
  background:
    radial-gradient(80% 90% at 12% 12%,rgba(56,189,248,.2),transparent 60%),
    linear-gradient(180deg,rgba(8,18,41,.94),rgba(3,7,18,.98));
}
.cta-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start}
.cta-copy h2{margin:14px 0 14px;font-size:clamp(1.4rem,2.6vw,2.05rem);font-weight:900;letter-spacing:-.02em}
.cta-copy p{color:var(--muted);margin:0 0 22px}
.cta-facts{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.cta-facts li{display:flex;gap:12px;align-items:flex-start;font-size:.9rem;color:#C7D3E2}
.cta-facts i{color:var(--accent-3);margin-top:4px}
.signup-form{
  padding:28px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.signup-form h3{margin:0 0 6px;font-size:1.12rem;font-weight:800}
.signup-form .form-sub{margin:0 0 20px;font-size:.86rem;color:var(--muted)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px;margin-bottom:16px}
.field label{font-size:.82rem;font-weight:600;color:#C7D3E2}
.field input{
  width:100%;padding:13px 15px;border-radius:13px;border:1px solid var(--line);
  background:rgba(3,7,18,.6);color:#fff;font-size:.92rem;transition:border-color .2s,box-shadow .25s;
}
.field input::placeholder{color:var(--muted-2)}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.form-check{display:flex;gap:11px;align-items:flex-start;font-size:.83rem;color:var(--muted);margin:4px 0 20px}
.form-check input{width:18px;height:18px;margin-top:2px;accent-color:#38BDF8;flex-shrink:0}
.form-note{margin:14px 0 0;font-size:.78rem;color:var(--muted-2);text-align:center}
.form-result{
  margin:16px 0 0;padding:14px 16px;border-radius:13px;font-size:.86rem;
  background:rgba(74,222,128,.1);border:1px solid rgba(74,222,128,.35);color:#BBF7D0;
}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(3,7,18,.95),#02060F);
  padding:56px 0 26px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:30px}
.footer-brand .logo{font-size:1.02rem}
.footer-note{color:var(--muted);font-size:.86rem;max-width:340px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:#BAE6FD;transition:background .2s,transform .2s,border-color .2s;
}
.social-row a:hover{background:rgba(56,189,248,.16);border-color:var(--line-strong);transform:translateY(-2px)}
.footer-col h4{margin:0 0 14px;font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#fff}
.footer-col a{display:block;padding:6px 0;font-size:.87rem;color:var(--muted);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:.82rem;color:var(--muted-2);
}
.age-badge{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line-strong);color:#BAE6FD;font-weight:800;font-size:.78rem;
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;padding:11px 18px 11px 14px;
  min-height:56px;border-radius:999px;
  background:rgba(7,7,13,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  font-size:.86rem;font-weight:700;color:#E2F5FF;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s,transform .25s,box-shadow .3s;
}
.fab::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;z-index:-1;
  background:linear-gradient(120deg,#A3E635,#22D3EE 55%,#38BDF8);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  animation:fabGlow 3.4s ease-in-out infinite;
}
@keyframes fabGlow{0%,100%{opacity:.75}50%{opacity:1}}
.fab i{font-size:1.05rem;color:#A3E635}
.fab:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 30px rgba(34,211,238,.6)}
.fab:active{transform:scale(.95)}
.fab-dot{
  position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#EF4444;box-shadow:0 0 0 3px rgba(7,7,13,.9);animation:pulse 1.6s infinite;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.secure-grid,.cta-grid{grid-template-columns:1fr;gap:30px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:768px){
  .nav{height:66px;gap:12px}
  .logo{font-size:1rem}
  .logo-text small{display:none}
  .section{padding:54px 0}
  .hero{padding:48px 0 56px}
  .grid-3,.channels{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .fab span{display:none}
  .fab{padding:14px;justify-content:center}
}
@media (max-width:520px){
  body{font-size:15.4px}
  .nav-actions .btn-ghost{display:none}
  .btn{padding:12px 20px;font-size:.9rem}
  .steps,.metrics,.grid-4{grid-template-columns:1fr}
  .hero-panel{padding:20px}
  .signup-form{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{bottom:84px;left:12px}
}

/* roulang page: category2 */
/* roulang page: category2 - tai-app-ios-android */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-deep:#050C1C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.085);
  --panel:rgba(10,20,42,.72);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.42);
  --accent:#38BDF8;
  --accent-2:#2563EB;
  --accent-3:#22D3EE;
  --gold:#F5C451;
  --gold-2:#FCD34D;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow:0 20px 50px rgba(2,6,23,.6);
  --glow:0 0 24px rgba(56,189,248,.32);
  --container:1180px;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);overflow-x:hidden}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:70px 70px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:-.02em}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.container{width:min(100% - 32px,var(--container));margin-inline:auto;position:relative;z-index:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 25px;border-radius:999px;font-weight:700;font-size:.94rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn i{font-size:.92em}
.btn-primary{
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);color:#02101F;
  box-shadow:0 0 0 1px rgba(56,189,248,.55),0 14px 34px rgba(37,99,235,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.8),0 18px 42px rgba(56,189,248,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(56,189,248,.13);border-color:var(--accent);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-2) 0%,#F59E0B 100%);color:#2A1802;box-shadow:0 14px 32px rgba(245,158,11,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.45)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn-block{width:100%}
.btn:active{transform:translateY(1px) scale(.985)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.08rem;letter-spacing:-.03em;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-size:.95rem;font-weight:900;
  box-shadow:var(--glow);
}
.logo-text{background:linear-gradient(92deg,#FFFFFF 12%,#7DD3FC 60%,#F5C451 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-text small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-links a:hover{color:#fff;background:var(--glass)}
.nav-links a.active{
  color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(37,99,235,.18));
  border-color:var(--line-strong);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:#fff;cursor:pointer;font-size:1.05rem;
}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line);margin-top:6px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 16px;border-radius:12px;font-weight:600;color:var(--muted);border:1px solid transparent}
.mobile-menu a:hover,.mobile-menu a.active{color:#fff;background:var(--glass);border-color:var(--line)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:66px 0 76px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/daf9270ef4ea9486.jpg') center/cover no-repeat;
  transform:scale(1.05);filter:saturate(.85);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(90% 70% at 10% 8%,rgba(56,189,248,.2),transparent 60%),
    radial-gradient(70% 60% at 94% 82%,rgba(245,196,81,.16),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.95) 55%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  font-size:.73rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 10px #4ADE80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
.hero h1{margin:20px 0 16px;font-size:clamp(1.7rem,3.2vw,2.7rem);font-weight:900;letter-spacing:-.03em}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7DD3FC,#38BDF8 45%,#F5C451);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#CBD5E1;font-size:1.01rem;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.87rem;color:#B8C6DA}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points i{color:var(--accent);font-size:.82rem}
.tier-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.tier{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;
  font-size:.8rem;font-weight:700;color:#FDE68A;
  background:linear-gradient(180deg,rgba(245,196,81,.16),rgba(245,196,81,.05));
  border:1px solid rgba(245,196,81,.4);
}
.tier i{font-size:.78rem;color:var(--gold-2)}
.tier-note{font-size:.79rem;color:var(--muted);margin-left:4px}

.hero-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;top:-70px;right:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.28),transparent 70%);pointer-events:none;
}
.hero-panel img{border-radius:var(--radius);border:1px solid var(--line);margin-bottom:18px;aspect-ratio:16/10;object-fit:cover;width:100%}
.device-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.device-head b{font-size:.95rem}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:#4ADE80;background:rgba(74,222,128,.1);border:1px solid rgba(74,222,128,.35);
}
.device-rows{display:flex;flex-direction:column;gap:1px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line)}
.device-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 15px;background:rgba(3,7,18,.5);font-size:.86rem}
.device-row span{color:var(--muted)}
.device-row b{font-weight:700}
.device-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.78rem;color:var(--muted-2)}

/* ---------- Sections ---------- */
.section{padding:72px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.7) 0%,rgba(3,7,18,.1) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:740px;margin-bottom:36px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:#7DD3FC;background:rgba(56,189,248,.08);border:1px solid var(--line);
}
.section-title{margin-top:16px;font-size:clamp(1.38rem,2.4vw,2rem)}
.section-sub{margin-top:12px;color:var(--muted);font-size:.97rem}
.section-sub strong{color:#E2E8F0}

/* ---------- Stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.stat-card{
  padding:22px 20px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);
  transition:border-color .25s,transform .25s,box-shadow .3s;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--glow)}
.stat-num{display:block;font-size:1.62rem;font-weight:900;letter-spacing:-.03em;background:linear-gradient(100deg,#7DD3FC,#38BDF8 55%,#F5C451);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{display:block;margin-top:8px;font-size:.82rem;color:var(--muted);line-height:1.5}

/* ---------- Features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-card{
  padding:24px;border-radius:var(--radius);background:rgba(255,255,255,.03);
  border:1px solid var(--line);transition:border-color .25s,transform .25s,background .25s;
}
.feature-card:hover{border-color:var(--line-strong);background:rgba(56,189,248,.06);transform:translateY(-4px)}
.fc-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:1.05rem;
  color:#BAE6FD;background:linear-gradient(135deg,rgba(56,189,248,.22),rgba(37,99,235,.14));
  border:1px solid var(--line-strong);margin-bottom:16px;
}
.feature-card h3{font-size:1.02rem;margin-bottom:9px}
.feature-card p{font-size:.89rem;color:var(--muted);line-height:1.62}

/* ---------- Compare ---------- */
.compare{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--panel)}
.compare-head{
  display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px;padding:16px 22px;
  background:rgba(56,189,248,.08);border-bottom:1px solid var(--line);
  font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#BAE6FD;
}
.compare-head span:last-child{color:var(--muted)}
.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px;padding:18px 22px;border-bottom:1px solid rgba(96,165,250,.09);font-size:.9rem}
.compare-row:last-child{border-bottom:none}
.compare-row .c-label{font-weight:700;color:#E2E8F0;display:flex;align-items:center;gap:10px}
.compare-row .c-label i{color:var(--accent);font-size:.8rem}
.compare-cell{display:flex;align-items:flex-start;gap:9px;color:var(--muted)}
.compare-cell.is-app{color:#E2F4FF}
.compare-cell i{font-size:.85rem;margin-top:3px;color:#4ADE80}
.compare-cell.muted-cell i{color:var(--muted-2)}

/* ---------- Steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(10,20,42,.85),rgba(3,7,18,.6));
  border:1px solid var(--line);transition:border-color .25s,transform .25s;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step-num{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;font-weight:900;font-size:.95rem;
  color:#02101F;background:linear-gradient(135deg,#38BDF8,#2563EB);margin-bottom:16px;box-shadow:var(--glow);
}
.step h3{font-size:.99rem;margin-bottom:9px}
.step p{font-size:.87rem;color:var(--muted);line-height:1.6}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:26px;border-left:1px solid var(--line-strong);display:flex;flex-direction:column;gap:26px}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:6px;width:13px;height:13px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);box-shadow:0 0 14px rgba(56,189,248,.6);
}
.tl-date{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-2)}
.tl-item h3{font-size:1.02rem;margin:8px 0 7px}
.tl-item p{font-size:.89rem;color:var(--muted);max-width:760px}
.timeline-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:start}
.timeline-aside{
  padding:24px;border-radius:var(--radius-lg);background:var(--panel);
  border:1px solid var(--line);backdrop-filter:blur(12px);
}
.timeline-aside img{border-radius:var(--radius);border:1px solid var(--line);aspect-ratio:4/3;object-fit:cover;margin-bottom:18px}
.timeline-aside h3{font-size:1rem;margin-bottom:12px}
.aside-list{display:flex;flex-direction:column;gap:11px;font-size:.87rem;color:var(--muted)}
.aside-list li{display:flex;gap:10px;align-items:flex-start}
.aside-list i{color:var(--gold-2);margin-top:4px;font-size:.78rem}

/* ---------- Security ---------- */
.sec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.sec-card{
  padding:22px 20px;border-radius:var(--radius);background:rgba(255,255,255,.03);
  border:1px solid var(--line);transition:border-color .25s,background .25s;
}
.sec-card:hover{border-color:var(--line-strong);background:rgba(56,189,248,.05)}
.sec-card i{font-size:1.12rem;color:#7DD3FC;margin-bottom:14px;display:block}
.sec-card h3{font-size:.96rem;margin-bottom:8px}
.sec-card p{font-size:.85rem;color:var(--muted);line-height:1.58}
.pay-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:20px 22px;border-radius:var(--radius);background:rgba(3,7,18,.55);border:1px solid var(--line)}
.pay-row .pay-title{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-right:6px}
.pay-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  font-size:.83rem;font-weight:600;color:#E2E8F0;background:rgba(255,255,255,.045);
  border:1px solid var(--line);transition:border-color .2s,transform .2s,color .2s;
}
.pay-chip:hover{border-color:var(--line-strong);transform:translateY(-2px);color:#fff}
.pay-chip i{color:var(--accent-3)}

/* ---------- Channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-card{
  display:block;padding:26px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(10,20,42,.8),rgba(3,7,18,.7));
  border:1px solid var(--line);transition:border-color .25s,transform .25s,box-shadow .3s;
}
.channel-card:hover{border-color:var(--line-strong);transform:translateY(-5px);box-shadow:var(--glow)}
.channel-card .ch-ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:1rem;color:#BAE6FD;background:rgba(56,189,248,.14);border:1px solid var(--line-strong);margin-bottom:18px}
.channel-card h3{font-size:1.05rem;margin-bottom:10px}
.channel-card p{font-size:.88rem;color:var(--muted);line-height:1.62}
.channel-card .ch-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:.85rem;font-weight:700;color:var(--accent)}
.channel-card.is-current{border-color:rgba(245,196,81,.42)}
.channel-card.is-current .ch-link{color:var(--gold-2)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.03);transition:border-color .25s,background .25s}
.faq-item[open]{border-color:var(--line-strong);background:rgba(56,189,248,.05)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;font-size:.97rem;
  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(--accent);transition:transform .25s}
.faq-item[open] summary::after{content:"\f068";transform:rotate(180deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:.9rem;color:var(--muted);line-height:1.68}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
  padding:40px;border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(56,189,248,.12),rgba(10,20,42,.9) 55%);
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(1.32rem,2.2vw,1.85rem);margin-bottom:14px}
.cta-panel p.cta-lead{color:#CBD5E1;font-size:.95rem;margin-bottom:20px}
.cta-list{display:flex;flex-direction:column;gap:12px;font-size:.89rem;color:var(--muted)}
.cta-list li{display:flex;gap:11px;align-items:flex-start}
.cta-list i{color:#4ADE80;margin-top:4px;font-size:.82rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:.8rem;font-weight:600;color:var(--muted);letter-spacing:.02em}
.field input,.field select{
  padding:13px 15px;border-radius:var(--radius-sm);background:rgba(3,7,18,.72);
  border:1px solid var(--line);color:var(--text);transition:border-color .2s,box-shadow .2s;
}
.field input::placeholder{color:var(--muted-2)}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{margin-top:14px;font-size:.78rem;color:var(--muted-2);line-height:1.6}

/* ---------- Footer ---------- */
.site-footer{margin-top:20px;background:linear-gradient(180deg,rgba(8,18,41,.6),rgba(3,7,18,1));border-top:1px solid var(--line);padding:60px 0 26px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{margin-bottom:6px}
.footer-note{color:var(--muted);font-size:.85rem;line-height:1.65;max-width:340px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--muted);font-size:.9rem;
  transition:color .2s,border-color .2s,transform .2s;
}
.social-row a:hover{color:#fff;border-color:var(--line-strong);transform:translateY(-3px)}
.footer-col h4{font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;color:#7DD3FC;margin-bottom:16px;font-weight:700}
.footer-col a{display:block;font-size:.87rem;color:var(--muted);padding:6px 0;transition:color .2s,transform .2s}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.81rem;color:var(--muted-2);
}
.footer-bottom b{color:#CBD5E1;font-weight:700}
.age-badge{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;
  font-weight:900;font-size:.8rem;color:var(--gold-2);
  background:rgba(245,196,81,.1);border:1px solid rgba(245,196,81,.42);
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;padding:13px 20px 13px 15px;border-radius:999px;
  background:linear-gradient(#07070D,#07070D) padding-box,linear-gradient(135deg,#38BDF8,#22D3EE) border-box;
  border:1.5px solid transparent;color:#E2F4FF;font-size:.85rem;font-weight:700;
  box-shadow:0 0 20px rgba(6,182,212,.45);backdrop-filter:blur(10px);
  transition:transform .2s,box-shadow .25s,opacity .25s;opacity:.82;min-height:52px;
}
.fab i{font-size:1.05rem;color:#7DD3FC;transition:transform .3s}
.fab:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 30px rgba(34,211,238,.7)}
.fab:hover i{animation:flicker .5s ease 1}
.fab:active{transform:scale(.95)}
.fab::after{
  content:"";position:absolute;top:6px;right:8px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 9px #F43F5E;animation:pulse 1.6s infinite;
}
@keyframes flicker{0%,100%{opacity:1}45%{opacity:.35}}
.fab-text{white-space:nowrap}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .sec-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .timeline-wrap{grid-template-columns:1fr;gap:32px}
  .channel-grid{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr;gap:30px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-actions{margin-left:auto}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:48px 0 60px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:12px;padding:18px}
  .compare-row .c-label{font-size:.95rem}
  .compare-cell{font-size:.88rem}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .container{width:min(100% - 24px,var(--container))}
  .nav{height:64px;gap:12px}
  .logo-text{font-size:1rem}
  .nav-actions .btn-sm{padding:8px 14px;font-size:.8rem}
  .hero h1{font-size:1.55rem}
  .stats-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .sec-grid{grid-template-columns:1fr}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{padding:12px 16px 12px 13px;bottom:84px}
  .fab-text{display:none}
  .tier-row{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-deep:#050C1C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.085);
  --panel:rgba(10,20,42,.72);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.42);
  --accent:#38BDF8;
  --accent-2:#2563EB;
  --accent-3:#22D3EE;
  --gold:#F5C451;
  --gold-2:#FCD34D;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow:0 20px 50px rgba(2,6,23,.6);
  --glow:0 0 24px rgba(56,189,248,.32);
  --container:1180px;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.65;
  color:var(--text);background:var(--bg);overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:70px 70px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.container{width:min(100% - 32px,var(--container));margin-inline:auto;position:relative;z-index:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 25px;border-radius:999px;font-weight:700;font-size:.94rem;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn i{font-size:.92em}
.btn-primary{
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);color:#02101F;
  box-shadow:0 0 0 1px rgba(56,189,248,.55),0 14px 34px rgba(37,99,235,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.8),0 18px 42px rgba(56,189,248,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(56,189,248,.13);border-color:var(--accent);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-2) 0%,#F59E0B 100%);color:#2A1802;box-shadow:0 14px 32px rgba(245,158,11,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.45)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn-block{width:100%}
.btn:active{transform:translateY(1px) scale(.985)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.08rem;letter-spacing:-.03em;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#02101F;font-size:.95rem;font-weight:900;
  box-shadow:var(--glow);
}
.logo-text{background:linear-gradient(92deg,#FFFFFF 12%,#7DD3FC 60%,#F5C451 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-text small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-links a:hover{color:#fff;background:var(--glass)}
.nav-links a.active{
  color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(37,99,235,.18));
  border-color:var(--line-strong);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:#fff;cursor:pointer;font-size:1.05rem;
}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line)}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:13px 16px;border-radius:12px;font-weight:600;color:var(--muted);
  border:1px solid transparent;
}
.mobile-menu a:hover,.mobile-menu a.active{color:#fff;background:var(--glass);border-color:var(--line)}

/* ---------- Section base ---------- */
.section{padding:74px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72) 0%,rgba(5,12,28,.35) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:820px;margin-bottom:38px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 10px #4ADE80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.section-title{font-size:clamp(1.42rem,2.5vw,2.05rem);font-weight:800;margin-top:18px}
.section-sub{color:var(--muted);margin-top:14px;font-size:1rem;max-width:760px}
.text-accent{color:var(--accent)}
.text-gold{color:var(--gold-2)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/daf9270ef4ea9486.jpg') center/cover no-repeat;
  transform:scale(1.05);filter:saturate(.85);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(85% 70% at 10% 8%,rgba(56,189,248,.22),transparent 62%),
    radial-gradient(70% 60% at 94% 82%,rgba(37,99,235,.24),transparent 64%),
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.95) 58%,var(--bg) 100%);
}
.hero-inner{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.hero h1{margin:22px 0 18px;font-size:clamp(1.7rem,3.2vw,2.7rem);font-weight:900;letter-spacing:-.03em}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7DD3FC,#38BDF8 45%,#F5C451);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#CBD5E1;font-size:1.02rem;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:.88rem;color:#B8C6DA}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points i{color:var(--accent)}
.stack{display:grid;grid-template-columns:1.12fr .88fr;gap:16px;align-items:start}
.stack-card{
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.stack-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(135deg,rgba(56,189,248,.18),transparent 45%);
  opacity:.6;
}
.stack-card.main{grid-row:span 2;padding:26px}
.stack-card.side{margin-top:0}
.stack-card.side:nth-of-type(3){margin-top:16px}
.stack-tag{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  font-size:.68rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:#02101F;background:linear-gradient(135deg,#7DD3FC,#38BDF8);
}
.stack-title{font-size:1.06rem;font-weight:800;margin-top:14px}
.stack-value{font-size:2.05rem;font-weight:900;margin-top:10px;letter-spacing:-.03em}
.stack-value small{font-size:.85rem;font-weight:600;color:var(--muted);letter-spacing:0}
.stack-note{font-size:.86rem;color:var(--muted);margin-top:6px}
.stack-list{margin-top:18px;display:grid;gap:11px}
.stack-list li{display:flex;gap:10px;font-size:.9rem;color:#CBD5E1}
.stack-list i{color:var(--accent-3);margin-top:4px}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:14px}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#38BDF8,#F5C451);width:72%}
.stack-label{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}

/* ---------- Metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric{
  background:linear-gradient(170deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  transition:border-color .25s ease,transform .25s ease;
}
.metric:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.metric-value{font-size:1.72rem;font-weight:900;letter-spacing:-.03em}
.metric-label{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:8px}
.metric-note{font-size:.86rem;color:#CBD5E1;margin-top:8px}

/* ---------- Tiers ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tier{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.6));
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.tier:hover{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-3px)}
.tier-badge{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:#BAE6FD;background:rgba(56,189,248,.12);border:1px solid var(--line-strong);
}
.tier-badge.gold{color:#FDE68A;background:rgba(245,196,81,.12);border-color:rgba(245,196,81,.4)}
.tier-name{font-size:1.08rem;font-weight:800;margin-top:14px}
.tier-rate{font-size:1.5rem;font-weight:900;color:var(--accent);margin-top:8px;letter-spacing:-.02em}
.tier-rate.gold{color:var(--gold-2)}
.tier-desc{font-size:.88rem;color:var(--muted);margin-top:10px}
.tier-list{margin-top:14px;display:grid;gap:8px;font-size:.87rem;color:#CBD5E1}
.tier-list li{display:flex;gap:9px}
.tier-list i{color:var(--accent-3);margin-top:4px;font-size:.75rem}

/* ---------- Channel strip ---------- */
.channel-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.channel{
  display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--glass);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.channel:hover{border-color:var(--line-strong);background:rgba(56,189,248,.08);transform:translateY(-3px)}
.channel i{font-size:1.3rem;color:var(--accent)}
.channel b{display:block;font-size:.95rem;font-weight:700}
.channel span{font-size:.82rem;color:var(--muted)}

/* ---------- Scenarios ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(180deg,rgba(8,18,41,.8),rgba(3,7,18,.55));
  display:flex;flex-direction:column;
  transition:border-color .25s ease,transform .25s ease,box-shadow .28s ease;
}
.scene:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.scene-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-deep)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene:hover .scene-media img{transform:scale(1.06)}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{font-size:1.05rem;font-weight:800}
.scene-body p{font-size:.9rem;color:var(--muted);margin:0}
.scene-tag{font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#7DD3FC}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--panel);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.step-num{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:.95rem;color:#02101F;
  background:linear-gradient(135deg,#7DD3FC,#2563EB);box-shadow:var(--glow);
}
.step h3{font-size:1rem;font-weight:800;margin-top:16px}
.step p{font-size:.88rem;color:var(--muted);margin-top:8px}

/* ---------- Compare + timeline ---------- */
.compare-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table.compare{width:100%;border-collapse:collapse;min-width:520px;font-size:.9rem}
table.compare th,table.compare td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  background:rgba(56,189,248,.07);font-weight:800;
}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:rgba(56,189,248,.05)}
table.compare td:first-child{font-weight:700;color:#E2E8F0}
.cell-accent{color:var(--accent);font-weight:700}
.cell-gold{color:var(--gold-2);font-weight:700}
.timeline{position:relative;padding-left:26px;display:grid;gap:22px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--accent),rgba(56,189,248,.05))}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);box-shadow:var(--glow);
}
.tl-item h4{font-size:.98rem;font-weight:800}
.tl-item p{font-size:.87rem;color:var(--muted);margin-top:6px}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:linear-gradient(180deg,rgba(8,18,41,.8),rgba(3,7,18,.55));
  transition:border-color .25s ease,transform .25s ease,box-shadow .28s ease;
}
.news-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-deep)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-cat{font-size:.68rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#7DD3FC}
.news-body h3{font-size:1rem;font-weight:800;line-height:1.4}
.news-body p{font-size:.88rem;color:var(--muted);margin:0}
.news-date{font-size:.8rem;color:var(--muted-2);margin-top:auto}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);padding:26px;
  text-align:center;color:var(--muted);background:var(--glass);
}

/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:34px}
.trust{
  padding:20px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(56,189,248,.08),rgba(255,255,255,.015));
}
.trust i{font-size:1.25rem;color:var(--accent-3)}
.trust h3{font-size:.98rem;font-weight:800;margin-top:14px}
.trust p{font-size:.86rem;color:var(--muted);margin-top:8px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);
  padding:4px 20px;transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(10,20,42,.9)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 30px 18px 0;position:relative;
  font-weight:700;font-size:1rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:0;top:20px;font-size:.8rem;color:var(--accent);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{font-size:.92rem;color:var(--muted);padding:0 0 20px;margin:0;max-width:820px}

/* ---------- CTA form ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:38px;
  background:
    radial-gradient(80% 90% at 8% 6%,rgba(56,189,248,.16),transparent 60%),
    linear-gradient(160deg,rgba(10,20,42,.94),rgba(3,7,18,.9));
  box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:900}
.cta-panel p{color:#CBD5E1;margin-top:14px}
.cta-list{margin-top:20px;display:grid;gap:11px}
.cta-list li{display:flex;gap:10px;font-size:.92rem;color:#CBD5E1}
.cta-list i{color:var(--accent);margin-top:4px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.field input,.field select{
  padding:13px 15px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(3,7,18,.7);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--muted-2)}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{
  margin-top:14px;font-size:.84rem;color:#4ADE80;display:none;
  border:1px solid rgba(74,222,128,.35);background:rgba(74,222,128,.08);
  padding:12px 14px;border-radius:var(--radius-sm);
}
.form-note.show{display:block}
.form-foot{font-size:.8rem;color:var(--muted-2);margin-top:14px}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;margin-top:20px;padding:60px 0 28px;
  background:linear-gradient(180deg,rgba(5,12,28,.85),rgba(3,7,18,1));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:30px}
.footer-brand .logo{font-size:1.05rem}
.footer-note{font-size:.88rem;color:var(--muted);max-width:340px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);color:var(--muted);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.social-row a:hover{color:#fff;border-color:var(--line-strong);background:rgba(56,189,248,.12);transform:translateY(-2px)}
.footer-col h4{font-size:.8rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#E2E8F0;margin-bottom:16px}
.footer-col a{display:block;font-size:.88rem;color:var(--muted);padding:6px 0;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.82rem;color:var(--muted-2);
}
.footer-bottom b{color:#CBD5E1}
.age-badge{
  display:inline-grid;place-items:center;min-width:44px;height:30px;padding:0 12px;
  border-radius:999px;font-weight:800;font-size:.78rem;color:#02101F;
  background:linear-gradient(135deg,#7DD3FC,#38BDF8);
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;padding:14px 20px;min-height:56px;
  border-radius:999px;font-weight:800;font-size:.88rem;color:#E2F5FF;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1.5px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
                   linear-gradient(120deg,#22D3EE,#2563EB 55%,#A3E635);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s ease,box-shadow .3s ease,transform .25s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35)}50%{box-shadow:0 0 30px rgba(34,211,238,.7)}}
.fab i{font-size:1.1rem;color:#7DD3FC}
.fab:hover{opacity:1;transform:translateY(-2px) scale(1.03);box-shadow:0 0 34px rgba(34,211,238,.85)}
.fab:active{transform:translateY(1px) scale(.97)}
.fab .fab-dot{
  position:absolute;top:6px;right:10px;width:10px;height:10px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px #F43F5E;animation:pulse 1.6s infinite;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .compare-wrap{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .channel-strip{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr;padding:30px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:768px){
  .nav-links{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .section{padding:58px 0}
  .hero{padding:48px 0 60px}
  .stack{grid-template-columns:1fr}
  .stack-card.main{grid-row:auto}
  .stack-card.side:nth-of-type(3){margin-top:0}
  .scene-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .container{width:min(100% - 24px,var(--container))}
  .metric-grid{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .fab span{display:none}
  .fab{padding:16px;min-width:56px;justify-content:center}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
/* ===== 彻底修复 SV368 佣金梯度卡片 (.tier-grid) 超出屏幕与文字挤压问题 ===== */

/* 1. 父级网格：强制 4 列等分，严格自适应父容器宽度，禁止向右撑爆 */
.tier-grid {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important; /* 关键：minmax(0, 1fr) 防止子元素撑大容器 */
  gap: 20px !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  overflow: visible !important;
}

/* 2. 单个卡片：强制垂直从上到下排列，停止横向横排挤压 */
.tier {
  display: flex !important;
  flex-direction: column !important; /* 关键：改回正常的垂直纵向布局 */
  align-items: stretch !important;
  text-align: left !important;
  padding: 24px 20px !important;
  box-sizing: border-box !important;
  width: 100% !important;
  height: 100% !important;
  min-width: 0 !important; /* 消除 flex/grid 最小宽度默认值导致的内容外溢 */
}

/* 3. 恢复卡片内所有元素的正常宽度与自然换行 */
.tier > * {
  width: 100% !important;
  white-space: normal !important; /* 恢复正常文字换行，禁止挤成竖条 */
  box-sizing: border-box !important;
}

/* 4. 徽章（Bậc Đồng, Bậc Bạc...）样式规范 */
.tier-badge {
  display: inline-flex !important;
  align-items: center !important;
  width: fit-content !important;
  margin-bottom: 14px !important;
  padding: 4px 12px !important;
  font-size: 13px !important;
  font-weight: 700 !important;
  border-radius: 999px !important;
}

/* 5. 标题与说明文字恢复正常字号与间距 */
.tier-name {
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  line-height: 1.4 !important;
  margin: 0 0 10px 0 !important;
  color: #f8fafc !important;
}

.tier-rate {
  font-size: 2rem !important;
  font-weight: 900 !important;
  color: #38bdf8 !important; /* 亮蓝色大百分比 */
  margin: 6px 0 12px 0 !important;
  line-height: 1 !important;
}

.tier-rate.gold {
  color: #fbbf24 !important; /* 金黄色 */
}

.tier-desc {
  font-size: 13.5px !important;
  color: #94a3b8 !important;
  line-height: 1.5 !important;
  margin: 0 0 18px 0 !important;
  min-height: 40px !important; /* 让4个卡片的说明区高度基本对齐 */
}

/* 6. 底部的权益列表：恢复成竖向清单 */
.tier-list {
  display: flex !important;
  flex-direction: column !important; /* 纵向排列每一条权益 */
  gap: 10px !important;
  padding: 16px 0 0 0 !important;
  margin: auto 0 0 0 !important; /* 将列表推到卡片最底部对齐 */
  border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
  list-style: none !important;
}

.tier-list li {
  display: flex !important;
  align-items: flex-start !important;
  gap: 8px !important;
  font-size: 13px !important;
  line-height: 1.45 !important;
  color: #cbd5e1 !important;
  white-space: normal !important;
}

.tier-list li i {
  color: #38bdf8 !important;
  margin-top: 3px !important;
  flex-shrink: 0 !important;
}

/* 7. 响应式自适应断点：平板 2 列，手机 1 列，绝不超屏 */
@media (max-width: 1024px) {
  .tier-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }
}

@media (max-width: 600px) {
  .tier-grid {
    grid-template-columns: 1fr !important;
  }
}