/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --blue-deep:#1D4ED8;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --soft:#CBD5E1;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 42px rgba(3,7,18,.6);
  --shadow-soft:0 10px 26px rgba(3,7,18,.45);
  --maxw:1200px;
  --space:clamp(56px,7vw,104px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cyan)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:800;font-size:.82rem;letter-spacing:.02em;
  box-shadow:0 0 18px rgba(56,189,248,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:.98rem;font-weight:700;color:var(--text)}
.brand-text span{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--soft);
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:var(--cyan)}
.main-nav a.active{background:rgba(37,99,235,.22);color:#fff;box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;
  color:var(--cyan);border:1px solid rgba(56,189,248,.35);background:transparent;white-space:nowrap;
}
.btn-login:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-signup{
  padding:10px 18px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.btn-signup:hover{color:#04101f;transform:translateY(-1px);box-shadow:0 0 26px rgba(56,189,248,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:1rem;color:var(--cyan)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  box-shadow:0 10px 26px rgba(37,99,235,.35);
}
.btn-primary:hover{transform:translateY(-2px);color:#04101f;box-shadow:0 14px 34px rgba(56,189,248,.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(56,189,248,.06);border-color:rgba(56,189,248,.4);color:var(--cyan);
}
.btn-outline:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-soft{background:rgba(148,163,184,.12);color:var(--soft);border-color:var(--line)}
.btn-soft:hover{background:rgba(148,163,184,.2);color:#fff}

/* ---------- SECTION BASE ---------- */
.section{padding:var(--space) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
h2.section-title{font-size:clamp(1.5rem,3.1vw,2.15rem);font-weight:800}
.lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.7}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(3,7,18,.96) 8%,rgba(3,7,18,.82) 46%,rgba(3,7,18,.55) 100%),url('/assets/images/7bafbc3612fd835c.jpg');
  background-size:cover;background-position:center;
  padding:clamp(56px,8vw,96px) 0 clamp(48px,6vw,80px);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(1.75rem,4.1vw,3rem);font-weight:800;line-height:1.22}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--cyan),var(--holo) 60%,var(--lime));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;color:var(--soft);font-size:1.03rem;line-height:1.7;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  font-size:.8rem;color:var(--soft);
}
.pill i{color:var(--cyan);font-size:.78rem}

.console{
  background:rgba(6,14,32,.92);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow),0 0 34px rgba(37,99,235,.25);
  padding:0;overflow:hidden;
  clip-path:polygon(22px 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%,0 22px);
}
.console-bar{
  display:flex;align-items:center;gap:8px;
  padding:12px 18px;background:rgba(37,99,235,.16);border-bottom:1px solid var(--line);
}
.dot{width:9px;height:9px;border-radius:50%;background:#1E3A8A}
.dot.on{background:var(--lime);box-shadow:0 0 10px rgba(163,230,53,.8)}
.console-bar span{margin-left:6px;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.console-body{padding:20px 18px 8px;font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.82rem;line-height:1.95}
.console-body .row-line{display:flex;justify-content:space-between;gap:14px;color:var(--muted)}
.console-body .row-line b{color:var(--text);font-weight:600}
.console-body .ok{color:var(--lime)}
.console-foot{padding:14px 18px 20px}
.console-foot .btn{width:100%}

/* ---------- STAT BAR ---------- */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
  padding:22px 20px;border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel),rgba(8,18,41,.4));
  border:1px solid var(--line);
}
.stat b{display:block;font-size:clamp(1.35rem,2.6vw,1.85rem);font-weight:800;color:var(--cyan)}
.stat span{display:block;margin-top:6px;font-size:.85rem;color:var(--muted)}

/* ---------- GRIDS & CARDS ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  border-radius:var(--radius);padding:26px 24px;
  background:linear-gradient(165deg,rgba(14,30,61,.75),rgba(6,14,32,.6));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 28px rgba(37,99,235,.28)}
.card i.ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(37,99,235,.2);color:var(--cyan);font-size:1.05rem;margin-bottom:16px;
  border:1px solid var(--line);
}
.card h3{font-size:1.08rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.93rem}
.tag{
  display:inline-block;padding:4px 11px;border-radius:var(--radius-pill);
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(163,230,53,.14);color:var(--lime);border:1px solid rgba(163,230,53,.3);
}
.tag--blue{background:rgba(56,189,248,.14);color:var(--cyan);border-color:rgba(56,189,248,.32)}

/* ---------- CATEGORY MATRIX ---------- */
.cat-card{
  display:flex;flex-direction:column;gap:14px;
  border-radius:var(--radius);padding:28px 24px;
  background:linear-gradient(165deg,rgba(14,30,61,.8),rgba(6,14,32,.55));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(56,189,248,.24)}
.cat-card h3{font-size:1.15rem}
.cat-card p{color:var(--muted);font-size:.92rem;flex-grow:1}
.cat-more{font-size:.86rem;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:8px}

/* ---------- PICK CARDS WITH IMAGE ---------- */
.pick{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(14,30,61,.7),rgba(6,14,32,.55));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.pick:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 28px rgba(37,99,235,.3)}
.pick-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.pick-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pick:hover .pick-media img{transform:scale(1.06)}
.pick-media .badge-abs{
  position:absolute;top:12px;left:12px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(3,7,18,.82);color:var(--cyan);border:1px solid var(--line-strong);
}
.pick-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex-grow:1}
.pick-body h3{font-size:1.05rem}
.pick-body p{color:var(--muted);font-size:.9rem;flex-grow:1}
.pick-meta{display:flex;justify-content:space-between;font-size:.82rem;color:var(--holo);font-weight:600}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  padding:26px 22px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,30,61,.6),rgba(6,14,32,.4));
  border:1px solid var(--line);position:relative;
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:'JetBrains Mono',monospace;font-size:.78rem;letter-spacing:.1em;
  color:var(--cyan);display:block;margin-bottom:14px;
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}

/* ---------- TABLE ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,32,.6)}
table.cmp{width:100%;border-collapse:collapse;min-width:640px}
table.cmp th,table.cmp td{padding:16px 18px;text-align:left;font-size:.92rem;border-bottom:1px solid var(--line)}
table.cmp thead th{
  background:rgba(37,99,235,.16);color:var(--text);font-weight:700;
  font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp td:first-child{color:var(--text);font-weight:600}
table.cmp td{color:var(--muted)}
table.cmp tbody tr:hover{background:rgba(56,189,248,.05)}

/* ---------- REWARD / PROMO ---------- */
.promo{
  border-radius:var(--radius);overflow:hidden;position:relative;
  border:1px solid var(--line-strong);
  background-image:linear-gradient(105deg,rgba(3,7,18,.94),rgba(3,7,18,.72)),url('/assets/images/f46352a9656eee41.jpg');
  background-size:cover;background-position:center;
}
.promo-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;padding:clamp(30px,4.5vw,52px);align-items:center}
.promo h2{font-size:clamp(1.4rem,2.9vw,2rem)}
.promo p{margin-top:14px;color:var(--soft);font-size:.96rem}
.code-box{
  display:inline-flex;align-items:center;gap:12px;margin-top:22px;
  padding:12px 20px;border-radius:var(--radius-sm);
  border:1px dashed rgba(56,189,248,.55);background:rgba(56,189,248,.08);
  font-family:'JetBrains Mono',monospace;font-size:1.05rem;font-weight:600;color:var(--cyan);
  letter-spacing:.08em;
}
.reward-list{display:flex;flex-direction:column;gap:14px}
.reward-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(8,18,41,.75);border:1px solid var(--line);
}
.reward-item i{color:var(--lime);margin-top:4px}
.reward-item b{display:block;font-size:.95rem}
.reward-item span{font-size:.86rem;color:var(--muted)}

/* ---------- TESTIMONIALS ---------- */
.quote{
  padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,30,61,.6),rgba(6,14,32,.4));
  border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;
}
.quote .stars{color:#FACC15;font-size:.85rem;letter-spacing:.14em}
.quote p{color:var(--soft);font-size:.94rem}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  font-weight:800;font-size:.85rem;
}
.quote-who b{display:block;font-size:.9rem}
.quote-who span{font-size:.78rem;color:var(--muted)}

/* ---------- ASSURANCE ---------- */
.assure{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.assure-item{
  padding:24px 20px;border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(8,18,41,.55);
}
.assure-item i{color:var(--cyan);font-size:1.25rem;margin-bottom:14px;display:block}
.assure-item b{display:block;font-size:.98rem;margin-bottom:8px}
.assure-item span{font-size:.87rem;color:var(--muted)}

/* ---------- MISTAKES ---------- */
.mistake{
  padding:26px 26px 26px 30px;border-radius:var(--radius);
  border:1px solid var(--line);border-left:3px solid var(--cyan);
  background:linear-gradient(120deg,rgba(14,30,61,.55),rgba(6,14,32,.35));
  margin-bottom:18px;
}
.mistake h3{font-size:1.05rem;margin-bottom:10px;color:var(--text)}
.mistake p{color:var(--muted);font-size:.93rem}
.mistake .fix{margin-top:12px;font-size:.88rem;color:var(--holo)}
.mistake .fix i{margin-right:7px}

/* ---------- FIT / NOT FIT ---------- */
.fit-col{padding:28px 26px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(8,18,41,.5)}
.fit-col h3{font-size:1.1rem;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.fit-col ul li{
  display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(148,163,184,.16);
  font-size:.93rem;color:var(--soft);
}
.fit-col ul li:last-child{border-bottom:none}
.fit-col ul li i{margin-top:5px}
.fit-col.yes ul li i{color:var(--lime)}
.fit-col.no ul li i{color:#F43F5E}

/* ---------- NEWS ---------- */
.news-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:30px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:block;padding:22px 24px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(8,18,41,.5);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.news-item:hover{border-color:var(--line-strong);transform:translateX(4px);background:rgba(14,30,61,.7);color:inherit}
.news-item h3{font-size:1.02rem;margin:10px 0 8px}
.news-item p{color:var(--muted);font-size:.9rem}
.news-meta{display:flex;align-items:center;gap:12px;font-size:.78rem;color:var(--muted);margin-top:12px}
.side-box{padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(165deg,rgba(14,30,61,.65),rgba(6,14,32,.45))}
.side-box h3{font-size:1rem;margin-bottom:16px;letter-spacing:.02em}
.side-item{display:block;padding:13px 0;border-bottom:1px dashed rgba(148,163,184,.16)}
.side-item:last-of-type{border-bottom:none}
.side-item strong{display:block;font-size:.9rem;font-weight:600;line-height:1.45}
.side-item span{font-size:.76rem;color:var(--muted)}
.side-item:hover strong{color:var(--cyan)}
.empty-note{padding:20px 22px;border-radius:var(--radius-sm);border:1px dashed var(--line-strong);color:var(--muted);font-size:.9rem}
.list-more{display:inline-flex;align-items:center;gap:9px;margin-top:18px;font-size:.88rem;font-weight:700;color:var(--cyan)}

/* ---------- FAQ ---------- */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(8,18,41,.5);margin-bottom:14px;overflow:hidden;
}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:600;font-size:.98rem;
  list-style:none;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;color:var(--cyan);font-size:.8rem;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--cyan)}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:.92rem}

/* ---------- FORM ---------- */
.form-panel{
  border-radius:var(--radius);padding:clamp(26px,4vw,44px);
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(14,30,61,.85),rgba(6,14,32,.7));
  box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:.82rem;font-weight:600;color:var(--soft);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(3,7,18,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#64748B}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(56,189,248,.16);
}
.form-note{margin-top:16px;font-size:.82rem;color:var(--muted)}

/* ---------- FOOTER ---------- */
.site-footer{background:#020509;border-top:1px solid var(--line);padding:64px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:.9rem;max-width:330px}
.footer-col h4{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:.9rem;color:var(--muted)}
.footer-col ul li a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.82rem;color:var(--muted);
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--cyan);font-size:.74rem;font-weight:700;
}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(56,189,248,.06);color:var(--cyan);
}
.footer-social a:hover{background:rgba(56,189,248,.18)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1200;
  width:58px;height:58px;border-radius:var(--radius-pill);
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)),linear-gradient(135deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);opacity:.82;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 30px rgba(6,182,212,.7);color:var(--cyan)}
.fab:active{transform:scale(.95)}
.fab i{font-size:1.25rem}
.fab .gem{
  position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px #030712;animation:gemBlink 1.4s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.38)}50%{box-shadow:0 0 30px rgba(6,182,212,.72)}}
@keyframes gemBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- STICKY MOBILE CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1100;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:12px 16px;background:rgba(3,7,18,.94);backdrop-filter:blur(12px);
  border-top:1px solid var(--line-strong);
}
.sticky-cta span{font-size:.82rem;color:var(--soft)}
.sticky-cta .btn{padding:11px 18px;font-size:.85rem}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .grid-3,.grid-4,.assure,.steps{grid-template-columns:repeat(2,1fr)}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .promo-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:10px 16px 18px;display:none;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px;border-radius:var(--radius-sm)}
  .nav-toggle{display:flex}
  .header-inner{justify-content:space-between}
  .main-nav{margin-left:0}
  .sticky-cta{display:flex}
  .fab{bottom:88px}
  .form-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:520px){
  .grid-3,.grid-4,.assure,.steps,.stat-bar{grid-template-columns:1fr}
  .brand-text span{display:none}
  .btn-login{padding:8px 11px;font-size:.8rem}
  .btn-signup{padding:9px 14px;font-size:.8rem}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --blue-deep:#1D4ED8;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --soft:#CBD5E1;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 42px rgba(3,7,18,.6);
  --shadow-soft:0 10px 26px rgba(3,7,18,.45);
  --maxw:1200px;
  --space:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cyan)}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
button,input,select,textarea{font:inherit;color:inherit}
.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:800;font-size:.82rem;letter-spacing:.02em;
  box-shadow:0 0 18px rgba(56,189,248,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:.98rem;font-weight:700;color:var(--text)}
.brand-text span{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--soft);
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:var(--cyan)}
.main-nav a.active{background:rgba(37,99,235,.22);color:#fff;box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;
  color:var(--cyan);border:1px solid rgba(56,189,248,.35);background:transparent;white-space:nowrap;
}
.btn-login:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-signup{
  padding:10px 18px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.btn-signup:hover{color:#04101f;transform:translateY(-1px);box-shadow:0 0 26px rgba(56,189,248,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:1rem;color:var(--cyan)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  box-shadow:0 10px 26px rgba(37,99,235,.35);
}
.btn-primary:hover{transform:translateY(-2px);color:#04101f;box-shadow:0 14px 34px rgba(56,189,248,.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(56,189,248,.06);border-color:rgba(56,189,248,.4);color:var(--cyan);
}
.btn-outline:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-soft{background:rgba(148,163,184,.12);color:var(--soft);border-color:var(--line)}
.btn-soft:hover{background:rgba(148,163,184,.2);color:#fff}
.btn-sm{padding:10px 18px;font-size:.86rem}

/* ---------- SECTION BASE ---------- */
.section{padding:var(--space) 0;position:relative;scroll-margin-top:92px}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
h2.section-title{font-size:clamp(1.5rem,3.1vw,2.15rem);font-weight:800;margin:0;line-height:1.3}
h3{font-size:1.08rem;font-weight:700;margin:0}
.lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.7}
.text-soft{color:var(--soft)}

/* ---------- ARTICLE HERO ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(3,7,18,.97) 10%,rgba(3,7,18,.86) 50%,rgba(3,7,18,.62) 100%),url('/assets/images/f46352a9656eee41.jpg');
  background-size:cover;background-position:center;
  padding:clamp(40px,5vw,64px) 0 clamp(44px,6vw,72px);
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:radial-gradient(ellipse at 25% 15%,#000 18%,transparent 76%);
}
.article-hero .container-x{position:relative;z-index:2}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8rem;color:var(--muted);margin-bottom:20px}
.breadcrumb-x a{color:var(--soft)}
.breadcrumb-x a:hover{color:var(--cyan)}
.breadcrumb-x i{font-size:.6rem;color:var(--muted)}
.article-hero h1{
  font-size:clamp(1.6rem,3.7vw,2.7rem);font-weight:800;line-height:1.24;
  max-width:900px;margin:14px 0 0;
}
.article-hero h1 .hl{
  background:linear-gradient(120deg,var(--cyan),var(--holo) 55%,var(--lime));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-excerpt{margin-top:18px;max-width:820px;color:var(--soft);font-size:1.02rem;line-height:1.72}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  font-size:.79rem;color:var(--soft);
}
.chip i{color:var(--cyan);font-size:.78rem}
.chip--accent{background:rgba(37,99,235,.2);border-color:var(--line-strong);color:#fff}
.article-cover{margin-top:34px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.article-cover img{width:100%;height:clamp(220px,38vw,430px);object-fit:cover}

/* ---------- ARTICLE BODY ---------- */
.article-layout{max-width:900px}
.prose{font-size:1.03rem;line-height:1.75;color:var(--soft)}
.prose > *:first-child{margin-top:0}
.prose h2{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:800;color:var(--text);margin:38px 0 14px;line-height:1.34}
.prose h3{font-size:1.12rem;font-weight:700;color:var(--text);margin:28px 0 12px}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:24px;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:9px}
.prose strong{color:var(--text)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose img{border-radius:var(--radius-sm);border:1px solid var(--line);margin:22px 0}
.prose blockquote{
  margin:26px 0;padding:20px 24px;
  border-left:3px solid var(--cyan);
  background:rgba(56,189,248,.07);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text);font-style:italic;
}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.94rem}
.prose th,.prose td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.prose th{background:rgba(56,189,248,.1);color:var(--text);font-weight:700}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.key-box{
  margin:0 0 30px;padding:24px 26px;
  background:linear-gradient(135deg,rgba(37,99,235,.16),rgba(56,189,248,.05));
  border:1px solid var(--line-strong);border-radius:var(--radius);
}
.key-box h3{margin-bottom:14px;display:flex;align-items:center;gap:10px}
.key-box h3 i{color:var(--cyan)}
.key-list{list-style:none;padding:0;margin:0}
.key-list li{display:flex;gap:11px;align-items:flex-start;margin-bottom:10px;color:var(--soft);font-size:.96rem}
.key-list li:last-child{margin-bottom:0}
.key-list i{color:var(--lime);margin-top:4px;font-size:.8rem}
.pull-quote{
  margin:34px 0;padding:26px 28px;
  border:1px solid var(--line);border-left:4px solid var(--cyan);
  border-radius:var(--radius);background:var(--panel);
}
.pull-quote p{margin:0;font-size:1.08rem;line-height:1.65;color:var(--text);font-weight:500}
.pull-quote span{display:block;margin-top:12px;font-size:.82rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}

/* ---------- NETWORK CARDS ---------- */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.net-card{
  padding:26px 24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.net-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.net-card .net-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
.net-card h3{font-size:1.2rem;margin-bottom:6px}
.net-card .net-note{color:var(--muted);font-size:.9rem;margin-bottom:18px}
.net-rows{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.net-rows li{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.net-rows li:last-child{border-bottom:0}
.net-rows b{color:var(--text);font-weight:600}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step-num{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.95rem;
  background:rgba(56,189,248,.12);border:1px solid var(--line-strong);color:var(--cyan);
  margin-bottom:16px;
}
.step h3{font-size:1.02rem;margin-bottom:9px}
.step p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.62}

/* ---------- STATS ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
  padding:24px 22px;border-radius:var(--radius-sm);
  background:rgba(56,189,248,.05);border:1px solid var(--line);
}
.stat b{display:block;font-family:'JetBrains Mono',monospace;font-size:clamp(1.3rem,2.6vw,1.75rem);color:var(--cyan);line-height:1.2}
.stat span{display:block;margin-top:8px;font-size:.85rem;color:var(--muted)}
.stat-note{margin-top:22px;font-size:.86rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--panel);border:1px solid var(--line) !important;
  border-radius:var(--radius-sm) !important;margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:.98rem;
  padding:18px 22px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:rgba(56,189,248,.1);color:var(--cyan)}
.accordion-button::after{filter:invert(75%) sepia(40%) saturate(1400%) hue-rotate(170deg)}
.accordion-body{padding:6px 22px 22px;color:var(--muted);font-size:.94rem;line-height:1.72;border-top:1px solid var(--line)}

/* ---------- RELATED ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
  display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.related-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.related-card img{width:100%;height:172px;object-fit:cover}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.related-body h3{font-size:1rem;line-height:1.45}
.related-body h3 a:hover{color:var(--cyan)}
.related-body p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.62}
.related-more{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;font-weight:700;color:var(--cyan)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);
  padding:clamp(30px,4vw,52px);
  background-image:linear-gradient(120deg,rgba(3,7,18,.94),rgba(8,18,41,.86)),url('/assets/images/27c7e1277665a350.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line-strong);
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(1.35rem,2.8vw,2rem);font-weight:800;margin:0 0 12px;line-height:1.32}
.cta-band p{margin:0;color:var(--soft);font-size:.98rem;line-height:1.7;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.cta-note{font-size:.78rem;color:var(--muted);text-align:center}

/* ---------- EMPTY STATE ---------- */
.empty-box{
  max-width:640px;padding:34px 30px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line-strong);text-align:left;
}
.empty-box h2{font-size:1.35rem;font-weight:800;margin:0 0 12px}
.empty-box p{margin:0 0 20px;color:var(--muted)}

/* ---------- FOOTER ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:clamp(44px,5vw,72px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:.9rem;line-height:1.72;max-width:400px;margin:0 0 18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--cyan);
  transition:background .2s ease,transform .2s ease;
}
.footer-social a:hover{background:rgba(56,189,248,.2);transform:translateY(-2px);color:#fff}
.footer-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text);margin:0 0 16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:11px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:.82rem;
}
.age-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:var(--radius-pill);background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--soft);font-size:.78rem}
.age-badge i{color:var(--cyan)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 18px;border-radius:var(--radius-pill);
  font-size:.82rem;font-weight:700;color:var(--cyan);
  background:
    linear-gradient(rgba(3,7,18,.88),rgba(3,7,18,.88)) padding-box,
    linear-gradient(135deg,var(--cyan),var(--lime)) border-box;
  border:1px solid transparent;
  backdrop-filter:blur(12px);
  opacity:.78;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease,color .2s ease;
  animation:fabPulse 2.8s ease-in-out infinite;
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px) scale(1.03);box-shadow:0 0 30px rgba(56,189,248,.7)}
.fab:active{transform:scale(.96)}
.fab i{font-size:1rem}
.fab-dot{
  position:absolute;top:5px;right:12px;width:9px;height:9px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 10px var(--lime);animation:blink 1.3s infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 14px rgba(56,189,248,.32)}
  50%{box-shadow:0 0 26px rgba(56,189,248,.6)}
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:14px 20px 20px;display:none;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px;font-size:.95rem}
  .nav-toggle{display:flex}
}
@media (max-width:768px){
  .header-inner{gap:12px}
  .btn-login{padding:8px 11px;font-size:.8rem}
  .btn-signup{padding:9px 13px;font-size:.8rem}
  .brand-text span{display:none}
  .section{padding:clamp(44px,9vw,64px) 0}
  .net-grid,.steps,.stat-grid,.related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .article-hero h1{font-size:clamp(1.45rem,6vw,1.9rem)}
  .pull-quote{padding:20px 20px}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .header-inner{min-height:64px}
  .main-nav{top:64px}
  .btn{padding:12px 18px;font-size:.9rem}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .fab{left:12px;bottom:84px;padding:12px 14px;font-size:.75rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --blue-deep:#1D4ED8;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --soft:#CBD5E1;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 42px rgba(3,7,18,.6);
  --shadow-soft:0 10px 26px rgba(3,7,18,.45);
  --maxw:1200px;
  --space:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  padding-bottom:78px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.26}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:var(--space) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
h2.section-title{font-size:clamp(1.5rem,3.1vw,2.15rem);font-weight:800}
.lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.7}
.text-mono{font-family:'JetBrains Mono',monospace}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:800;font-size:.82rem;letter-spacing:.02em;
  box-shadow:0 0 18px rgba(56,189,248,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:.98rem;font-weight:700;color:var(--text)}
.brand-text span{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--soft);
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:var(--cyan)}
.main-nav a.active{background:rgba(37,99,235,.22);color:#fff;box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;
  color:var(--cyan);border:1px solid rgba(56,189,248,.35);background:transparent;white-space:nowrap;
}
.btn-login:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-signup{
  padding:10px 18px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.btn-signup:hover{color:#04101f;transform:translateY(-1px);box-shadow:0 0 26px rgba(56,189,248,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:1rem;color:var(--cyan)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  box-shadow:0 10px 26px rgba(37,99,235,.35);
}
.btn-primary:hover{transform:translateY(-2px);color:#04101f;box-shadow:0 14px 34px rgba(56,189,248,.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:rgba(56,189,248,.4);color:var(--cyan)}
.btn-outline:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-soft{background:rgba(148,163,184,.12);color:var(--soft);border-color:var(--line)}
.btn-soft:hover{background:rgba(148,163,184,.2);color:#fff}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(3,7,18,.96) 8%,rgba(3,7,18,.84) 46%,rgba(3,7,18,.6) 100%),url('/assets/images/7bafbc3612fd835c.jpg');
  background-size:cover;background-position:center;
  padding:clamp(52px,7vw,88px) 0 clamp(44px,6vw,72px);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(1.7rem,4vw,2.85rem);font-weight:800;line-height:1.22;letter-spacing:-.01em}
.hero h1 .hl{background:linear-gradient(120deg,var(--cyan),var(--holo) 60%,var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;color:var(--soft);font-size:1.02rem;line-height:1.7;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  font-size:.8rem;color:var(--soft);
}
.pill i{color:var(--cyan);font-size:.78rem}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
}
.stat-num{font-family:'JetBrains Mono',monospace;font-size:1.28rem;font-weight:600;color:var(--cyan)}
.stat-label{display:block;margin-top:4px;font-size:.78rem;color:var(--muted);line-height:1.45}

.hero-side{display:grid;gap:14px}
.pick-card{
  position:relative;
  background:linear-gradient(160deg,rgba(14,30,61,.92),rgba(11,23,48,.86));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 20px 18px;
  box-shadow:var(--shadow-soft);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pick-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 24px rgba(56,189,248,.28)}
.pick-card.is-best{border-color:var(--line-strong);background:linear-gradient(160deg,rgba(37,99,235,.24),rgba(11,23,48,.94));box-shadow:0 0 30px rgba(56,189,248,.3)}
.pick-tag{
  position:absolute;top:-11px;left:18px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:linear-gradient(135deg,var(--cyan),var(--lime));color:#04101f;
}
.pick-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.pick-top strong{font-size:1.05rem;font-weight:700}
.pick-top .tag-time{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--lime)}
.pick-rows{margin-top:14px;display:grid;gap:8px}
.pick-row{display:flex;justify-content:space-between;gap:14px;font-size:.86rem;color:var(--muted);border-bottom:1px dashed rgba(96,165,250,.16);padding-bottom:7px}
.pick-row span:last-child{color:var(--soft);font-weight:600;text-align:right}
.pick-cta{margin-top:16px;width:100%;padding:11px 18px;font-size:.88rem}

/* ---------- SPLIT FEATURES ---------- */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,56px);align-items:start}
.feature-list{display:grid;gap:18px}
.feature-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;
  padding:20px 22px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(14,30,61,.72),rgba(11,23,48,.5));
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.feature-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.feature-num{font-family:'JetBrains Mono',monospace;font-size:1.5rem;font-weight:600;color:rgba(56,189,248,.65);line-height:1}
.feature-item h3{font-size:1.05rem;margin-bottom:8px}
.feature-item p{color:var(--muted);font-size:.93rem}
.inline-link{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-weight:600;color:var(--cyan);font-size:.92rem}
.inline-link:hover{gap:12px;color:#fff}

/* ---------- TABLE ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,30,61,.6),rgba(11,23,48,.35));
}
table.net-table{width:100%;border-collapse:collapse;min-width:680px}
.net-table thead th{
  text-align:left;padding:15px 18px;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);border-bottom:1px solid var(--line);background:rgba(3,7,18,.5);font-weight:700;
}
.net-table td{padding:16px 18px;border-bottom:1px solid rgba(96,165,250,.1);font-size:.92rem;color:var(--soft);vertical-align:middle}
.net-table tr:last-child td{border-bottom:0}
.net-table tr.is-best{background:linear-gradient(90deg,rgba(37,99,235,.2),rgba(56,189,248,.05))}
.net-table tr.is-best td{color:var(--text)}
.net-name{font-family:'JetBrains Mono',monospace;font-weight:600;color:var(--cyan)}
.badge-best{display:inline-block;margin-left:8px;padding:3px 10px;border-radius:var(--radius-pill);font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:linear-gradient(135deg,var(--cyan),var(--lime));color:#04101f}

.rate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.rate-card{
  padding:20px 22px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(11,23,48,.7);
}
.rate-card span{font-size:.78rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.rate-card strong{display:block;margin-top:8px;font-family:'JetBrains Mono',monospace;font-size:1.35rem;color:var(--text)}
.rate-card em{display:block;margin-top:6px;font-style:normal;font-size:.84rem;color:var(--cyan)}

/* ---------- STEPS ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step-card{
  position:relative;padding:26px 22px 22px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(14,30,61,.75),rgba(3,7,18,.55));
  transition:transform .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.step-card::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-family:'JetBrains Mono',monospace;font-size:1.4rem;font-weight:600;
  color:var(--cyan);opacity:.85;margin-bottom:12px;
}
.step-card h3{font-size:1rem;margin-bottom:8px}
.step-card p{color:var(--muted);font-size:.9rem}

/* ---------- SCENARIOS ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-item{
  display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start;
  padding:22px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(11,23,48,.55);
  transition:border-color .25s ease,background .25s ease;
}
.scene-item:hover{border-color:var(--line-strong);background:rgba(14,30,61,.75)}
.scene-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line);color:var(--cyan);
}
.scene-item h3{font-size:1rem;margin-bottom:7px}
.scene-item p{color:var(--muted);font-size:.9rem}

/* ---------- PROMO ---------- */
.promo{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,48px);align-items:center;
  border:1px solid var(--line-strong);border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(37,99,235,.2),rgba(11,23,48,.9));
  padding:clamp(24px,3.5vw,40px);
  box-shadow:0 0 40px rgba(37,99,235,.18);
}
.promo-media{border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line)}
.promo-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.promo h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin-bottom:12px}
.promo p{color:var(--soft);font-size:.96rem}
.check-list{margin-top:20px;display:grid;gap:11px}
.check-list li{display:flex;gap:11px;align-items:flex-start;font-size:.92rem;color:var(--soft)}
.check-list i{color:var(--lime);margin-top:4px;font-size:.85rem}
.code-box{
  display:inline-flex;align-items:center;gap:12px;margin-top:22px;
  padding:12px 20px;border-radius:var(--radius-pill);
  border:1px dashed rgba(163,230,53,.5);background:rgba(163,230,53,.08);
  font-family:'JetBrains Mono',monospace;font-weight:600;letter-spacing:.12em;color:var(--lime);
}
.promo-actions{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- REVIEWS ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{
  padding:24px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(11,23,48,.6);
  display:flex;flex-direction:column;gap:14px;
}
.review-stars{color:#FCD34D;font-size:.82rem;letter-spacing:2px}
.review-card p{color:var(--soft);font-size:.93rem}
.review-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;font-weight:700;font-size:.85rem;
}
.review-who strong{display:block;font-size:.9rem}
.review-who span{font-size:.78rem;color:var(--muted)}

/* ---------- POSTS ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{
  display:flex;flex-direction:column;gap:12px;
  padding:22px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(11,23,48,.6);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 22px rgba(56,189,248,.2)}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.74rem;color:var(--muted)}
.post-cat{padding:3px 11px;border-radius:var(--radius-pill);background:rgba(56,189,248,.12);border:1px solid var(--line);color:var(--cyan);font-weight:600}
.post-card h3{font-size:1.02rem;line-height:1.4}
.post-card h3 a:hover{color:var(--cyan)}
.post-card p{color:var(--muted);font-size:.9rem}
.post-more{display:inline-flex;align-items:center;gap:8px;margin-top:auto;font-size:.86rem;font-weight:600;color:var(--cyan)}
.empty-note{
  padding:26px;border-radius:var(--radius);border:1px dashed var(--line);
  color:var(--muted);text-align:center;background:rgba(11,23,48,.5);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(11,23,48,.55);overflow:hidden;transition:border-color .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(14,30,61,.7)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-weight:600;font-size:.98rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);font-size:.8rem;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:.93rem}

/* ---------- CHANNELS + CTA ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:40px}
.channel-card{
  display:block;padding:24px;border-radius:var(--radius);
  border:1px solid var(--line);background:linear-gradient(160deg,rgba(14,30,61,.8),rgba(11,23,48,.5));
  transition:transform .25s ease,border-color .25s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);color:inherit}
.channel-card i{color:var(--cyan);font-size:1.1rem}
.channel-card h3{margin-top:14px;font-size:1.05rem}
.channel-card p{margin-top:8px;color:var(--muted);font-size:.9rem}
.channel-card span{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:.84rem;font-weight:600;color:var(--cyan)}

.cta-band{
  text-align:center;padding:clamp(32px,4vw,52px) clamp(22px,4vw,48px);
  border-radius:var(--radius);
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(37,99,235,.24),rgba(3,7,18,.92));
  box-shadow:0 0 40px rgba(37,99,235,.2);
}
.cta-band h2{font-size:clamp(1.4rem,2.8vw,2rem)}
.cta-band p{margin:14px auto 0;max-width:640px;color:var(--soft);font-size:.98rem}
.cta-band .hero-actions{justify-content:center}

/* ---------- FOOTER ---------- */
.site-footer{background:linear-gradient(180deg,var(--bg-2),#020509);border-top:1px solid var(--line);padding:clamp(44px,5vw,72px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{margin-top:18px;color:var(--muted);font-size:.9rem;max-width:380px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(56,189,248,.07);color:var(--cyan);
}
.footer-social a:hover{background:rgba(56,189,248,.18);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:.86rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.82rem;color:var(--muted);
}
.age-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);border:1px solid var(--line);background:rgba(56,189,248,.07);color:var(--soft)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:var(--radius-pill);
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,var(--cyan),var(--lime));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.8;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab i{font-size:1.15rem;transition:transform .5s ease}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(6,182,212,.7);color:#fff}
.fab:hover i{transform:rotate(360deg)}
.fab:active{transform:scale(.94) translateY(2px)}
.fab::after{
  content:"";position:absolute;top:6px;right:6px;width:11px;height:11px;border-radius:50%;
  background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:dotBlink 1.6s infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35)}50%{box-shadow:0 0 28px rgba(163,230,53,.55)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------- STICKY CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  background:rgba(3,7,18,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-strong);
  padding:11px 0;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.sticky-text{font-size:.86rem;color:var(--soft)}
.sticky-text strong{color:var(--cyan);font-family:'JetBrains Mono',monospace}
.sticky-inner .btn{padding:10px 20px;font-size:.86rem}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid,.post-grid,.channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .promo{grid-template-columns:1fr}
  .promo-media{order:-1}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:12px 20px 18px;display:none;
  }
  .main-nav.is-open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px;border-radius:var(--radius-sm)}
  .nav-toggle{display:inline-flex}
  .header-inner{position:relative}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px}
  .rate-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .btn{padding:12px 20px;font-size:.9rem}
  .sticky-text{display:none}
  .sticky-inner{justify-content:center}
  .brand-text span{display:none}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .step-grid,.review-grid,.post-grid,.channel-grid,.footer-grid{grid-template-columns:1fr}
  .feature-item{grid-template-columns:1fr;gap:10px}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{width:52px;height:52px;bottom:88px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --blue-deep:#1D4ED8;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --soft:#CBD5E1;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 42px rgba(3,7,18,.6);
  --shadow-soft:0 10px 26px rgba(3,7,18,.45);
  --maxw:1200px;
  --space:clamp(56px,7vw,104px);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
*{box-sizing:border-box}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease,background .2s ease}
a:hover{color:var(--cyan)}
button,input,select,textarea{font:inherit;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.28;margin:0}
p{margin:0}
section[id],div[id]{scroll-margin-top:96px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:800;font-size:.82rem;letter-spacing:.02em;
  box-shadow:0 0 18px rgba(56,189,248,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:.98rem;font-weight:700;color:var(--text)}
.brand-text span{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px;padding:0;margin:0}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--soft);
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:var(--cyan)}
.main-nav a.active{background:rgba(37,99,235,.22);color:#fff;box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;
  color:var(--cyan);border:1px solid rgba(56,189,248,.35);background:transparent;white-space:nowrap;
}
.btn-login:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-signup{
  padding:10px 18px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.btn-signup:hover{color:#04101f;transform:translateY(-1px);box-shadow:0 0 26px rgba(56,189,248,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:1rem;color:var(--cyan)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  box-shadow:0 10px 26px rgba(37,99,235,.35);
}
.btn-primary:hover{transform:translateY(-2px);color:#04101f;box-shadow:0 14px 34px rgba(56,189,248,.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(56,189,248,.06);border-color:rgba(56,189,248,.4);color:var(--cyan);
}
.btn-outline:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-soft{background:rgba(148,163,184,.12);color:var(--soft);border-color:var(--line)}
.btn-soft:hover{background:rgba(148,163,184,.2);color:#fff}
.btn-block{width:100%}
.btn-sm{padding:10px 18px;font-size:.86rem}

/* ---------- BADGES / PILLS ---------- */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  font-size:.8rem;color:var(--soft);
}
.pill i{color:var(--cyan)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--radius-pill);
  font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  background:rgba(37,99,235,.2);color:var(--holo);border:1px solid var(--line-strong);
}
.tag--lime{background:rgba(163,230,53,.12);color:var(--lime);border-color:rgba(163,230,53,.35)}
.tag--cyan{background:rgba(56,189,248,.14);color:var(--cyan);border-color:var(--line-strong)}

/* ---------- SECTION BASE ---------- */
.section{padding:var(--space) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
h2.section-title{font-size:clamp(1.5rem,3.1vw,2.15rem);font-weight:800}
.lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.7}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(3,7,18,.97) 6%,rgba(3,7,18,.84) 48%,rgba(3,7,18,.55) 100%),url('/assets/images/a7a2e30e89ef03c9.jpg');
  background-size:cover;background-position:center;
  padding:clamp(48px,7vw,92px) 0 clamp(46px,6vw,78px);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(1.6rem,3.9vw,2.75rem);font-weight:800;line-height:1.24}
.hero h1 .hl{background:linear-gradient(120deg,var(--cyan),var(--holo) 55%,var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;color:var(--soft);font-size:1.02rem;line-height:1.7;max-width:630px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-panel{
  background:linear-gradient(160deg,rgba(14,30,61,.96),rgba(8,18,41,.92));
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.tier-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  font-size:.78rem;font-weight:700;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.25));
  border:1px solid var(--line-strong);color:#EAF6FF;
}
.panel-title{margin-top:16px;font-size:1.08rem;font-weight:700}
.rate-list{margin:16px 0 0;padding:0;display:grid;gap:12px}
.rate-list li{
  display:grid;grid-template-columns:auto 1fr;grid-template-areas:"net rate" "net fee";
  gap:2px 14px;align-items:center;
  padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(3,7,18,.55);border:1px solid var(--line);
}
.rate-list .net{
  grid-area:net;font-family:'JetBrains Mono',monospace;font-size:.78rem;font-weight:600;
  letter-spacing:.06em;color:var(--cyan);
  padding:6px 10px;border-radius:8px;background:rgba(56,189,248,.1);border:1px solid var(--line);
}
.rate-list strong{grid-area:rate;font-size:1.02rem;color:var(--text)}
.rate-list em{grid-area:fee;font-style:normal;font-size:.78rem;color:var(--muted)}
.panel-foot{margin-top:18px;display:grid;gap:10px}
.panel-note{font-size:.78rem;color:var(--muted);text-align:left}

/* ---------- RATE CARDS ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.net-card{
  display:flex;flex-direction:column;
  background:linear-gradient(165deg,var(--panel),rgba(8,18,41,.9));
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.net-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.net-card figure{margin:0;position:relative}
.net-card figure img{width:100%;height:168px;object-fit:cover}
.net-card figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.1),rgba(3,7,18,.9))}
.net-card .net-body{padding:20px;display:grid;gap:14px}
.net-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.net-name{font-family:'JetBrains Mono',monospace;font-size:.95rem;font-weight:600;letter-spacing:.05em}
.net-rate{font-size:1.5rem;font-weight:800;color:var(--text)}
.net-rate small{display:block;font-size:.74rem;font-weight:500;color:var(--muted);margin-top:2px}
.spec-list{padding:0;margin:0;display:grid;gap:9px}
.spec-list li{display:flex;justify-content:space-between;gap:12px;font-size:.86rem;color:var(--soft);border-bottom:1px dashed rgba(148,163,184,.18);padding-bottom:8px}
.spec-list li:last-child{border-bottom:0;padding-bottom:0}
.spec-list span:last-child{color:var(--text);font-weight:600;text-align:right}
.note-line{margin-top:22px;font-size:.84rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.note-line i{color:var(--cyan);margin-top:3px}

/* ---------- SPLIT BLOCK / BENEFITS ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.num-list{display:grid;gap:22px;counter-reset:item}
.num-item{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start}
.num-item .num{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;color:#04101f;
  background:linear-gradient(145deg,var(--cyan),var(--blue));
}
.num-item h3{font-size:1.06rem;font-weight:700}
.num-item p{margin-top:8px;color:var(--muted);font-size:.94rem;line-height:1.7}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{
  padding:20px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,30,61,.85),rgba(3,7,18,.7));
  border:1px solid var(--line);
}
.stat strong{display:block;font-size:1.7rem;font-weight:800;font-family:'JetBrains Mono',monospace;color:var(--holo)}
.stat span{display:block;margin-top:6px;font-size:.86rem;color:var(--muted)}

/* ---------- TIMELINE ---------- */
.time-track{display:grid;gap:14px}
.time-row{
  display:grid;grid-template-columns:190px 1fr auto;gap:20px;align-items:center;
  padding:18px 22px;border-radius:var(--radius);
  background:rgba(11,23,48,.65);border:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease;
}
.time-row:hover{border-color:var(--line-strong);background:rgba(14,30,61,.8)}
.time-slot{font-family:'JetBrains Mono',monospace;font-size:.95rem;color:var(--cyan)}
.time-row p{color:var(--soft);font-size:.92rem;text-align:left}
.time-row .tag{white-space:nowrap}

/* ---------- TIERS ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tier{
  padding:22px;border-radius:var(--radius);
  background:linear-gradient(170deg,rgba(11,23,48,.9),rgba(3,7,18,.85));
  border:1px solid var(--line);display:grid;gap:14px;
  transition:transform .25s ease,border-color .25s ease;
}
.tier:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.tier.is-top{border-color:var(--line-strong);box-shadow:0 0 26px rgba(56,189,248,.16)}
.tier h3{font-size:1.05rem;font-weight:700;display:flex;align-items:center;gap:9px}
.tier h3 i{color:var(--cyan)}
.tier .tier-boost{font-family:'JetBrains Mono',monospace;font-size:1.35rem;font-weight:600;color:var(--lime)}
.tier ul{padding:0;margin:0;display:grid;gap:8px}
.tier li{font-size:.86rem;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.tier li i{color:var(--cyan);font-size:.72rem;margin-top:5px}
.tier-bar{height:6px;border-radius:var(--radius-pill);background:rgba(148,163,184,.16);overflow:hidden}
.tier-bar i{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--blue),var(--cyan))}

/* ---------- STEPS ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  padding:22px;border-radius:var(--radius);
  background:rgba(11,23,48,.6);border:1px solid var(--line);
  display:grid;gap:10px;
}
.step .step-no{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;color:#04101f;
  background:linear-gradient(145deg,var(--holo),var(--blue));
}
.step h3{font-size:1rem;font-weight:700}
.step p{font-size:.88rem;color:var(--muted);line-height:1.65}

/* ---------- SCENARIOS ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{
  display:grid;gap:0;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:rgba(11,23,48,.6);
  transition:transform .25s ease,border-color .25s ease;
}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.scene img{width:100%;height:170px;object-fit:cover}
.scene .scene-body{padding:20px;display:grid;gap:10px}
.scene h3{font-size:1.02rem;font-weight:700}
.scene p{font-size:.9rem;color:var(--muted);line-height:1.7}

/* ---------- NEWS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-item{
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(11,23,48,.55);transition:border-color .25s ease,transform .25s ease;
}
.news-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.news-link{display:grid;gap:10px;padding:20px;height:100%}
.news-link h3{font-size:1rem;font-weight:700;line-height:1.5;text-align:left}
.news-link p{font-size:.88rem;color:var(--muted);line-height:1.65;text-align:left}
.news-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:.78rem;color:var(--soft);font-family:'JetBrains Mono',monospace}
.news-meta span{display:inline-flex;align-items:center;gap:7px}
.news-meta i{color:var(--cyan)}
.empty-note{padding:22px;border-radius:var(--radius);border:1px dashed var(--line-strong);color:var(--muted);background:rgba(11,23,48,.5)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion-item{
  background:rgba(11,23,48,.6)!important;border:1px solid var(--line)!important;
  border-radius:var(--radius)!important;margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:transparent!important;color:var(--text)!important;
  font-weight:600;font-size:1rem;padding:18px 20px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--cyan)!important;background:rgba(37,99,235,.12)!important}
.accordion-button::after{filter:invert(78%) sepia(38%) saturate(1400%) hue-rotate(165deg)}
.accordion-body{color:var(--muted);font-size:.93rem;line-height:1.7;padding:0 20px 20px;text-align:left}

/* ---------- CHANNELS + FORM ---------- */
.channel-form{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.channel-list{display:grid;gap:14px;padding:0;margin:0}
.channel-card{
  display:grid;gap:7px;padding:20px;border-radius:var(--radius);
  background:rgba(11,23,48,.6);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.channel-card:hover{border-color:var(--line-strong);transform:translateX(4px);background:rgba(14,30,61,.82)}
.channel-card strong{font-size:1.02rem;font-weight:700}
.channel-card span{font-size:.87rem;color:var(--muted)}
.signup-card{
  padding:26px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,30,61,.95),rgba(3,7,18,.92));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.signup-card h3{font-size:1.22rem;font-weight:800}
.signup-card p{margin-top:10px;color:var(--muted);font-size:.92rem}
.form-grid{display:grid;gap:14px;margin-top:20px}
.field{display:grid;gap:7px;text-align:left}
.field label{font-size:.82rem;color:var(--soft);font-weight:600}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(3,7,18,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#64748B}
.field input:focus,.field select:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(56,189,248,.14);outline:none}
.form-note{font-size:.78rem;color:var(--muted);margin-top:12px}

/* ---------- FOOTER ---------- */
.site-footer{background:linear-gradient(180deg,var(--bg),#020509);border-top:1px solid var(--line);padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin-top:16px;max-width:380px;line-height:1.7}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--cyan);
}
.footer-social a:hover{background:rgba(56,189,248,.18);color:#fff}
.footer-col h4{font-size:.95rem;font-weight:700;margin:0 0 14px;color:var(--text)}
.footer-col ul{padding:0;margin:0;display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.89rem}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:38px;padding-top:20px;
  color:var(--muted);font-size:.83rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--soft);
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:1050;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-width:56px;height:56px;padding:0 16px;border-radius:var(--radius-pill);
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:1px solid var(--line-strong);
  color:var(--cyan);font-weight:700;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab i{font-size:1.14rem}
.fab-dot{
  position:absolute;top:6px;right:8px;width:11px;height:11px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px rgba(3,7,18,.9);
  animation:dotBlink 1.6s steps(2,end) infinite;
}
.fab:hover{opacity:1;transform:scale(1.06);color:#fff;box-shadow:0 0 30px rgba(56,189,248,.75)}
.fab:active{transform:scale(.95)}
@keyframes fabPulse{0%,100%{box-shadow:0 0 16px rgba(6,182,212,.35)}50%{box-shadow:0 0 28px rgba(6,182,212,.65)}}
@keyframes dotBlink{0%,49%{opacity:1}50%,100%{opacity:.25}}

/* ---------- STICKY CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:rgba(3,7,18,.94);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-strong);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 20px}
.sticky-text{display:flex;flex-direction:column;line-height:1.3}
.sticky-text strong{font-size:.92rem}
.sticky-text span{font-size:.76rem;color:var(--muted)}
body{padding-bottom:74px}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr;gap:32px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .channel-form{grid-template-columns:1fr}
  .time-row{grid-template-columns:150px 1fr;gap:16px}
  .time-row .tag{grid-column:2}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:28px}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;display:none;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:12px 20px 18px;margin-left:0;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px;border-radius:var(--radius-sm);font-size:.94rem}
  .nav-toggle{display:inline-flex}
  .header-inner{gap:12px}
}
@media (max-width:768px){
  :root{--space:clamp(46px,9vw,70px)}
  .brand-text span{display:none}
  .btn-login{padding:7px 11px;font-size:.8rem}
  .btn-signup{padding:8px 13px;font-size:.8rem}
  .grid-3{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .hero-sub{font-size:.96rem}
  .news-link p{font-size:.86rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .header-inner{min-height:64px}
  .main-nav{top:64px}
  .brand-mark{width:36px;height:36px;border-radius:10px;font-size:.76rem}
  .brand-text strong{font-size:.88rem}
  .tier-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .time-row{grid-template-columns:1fr}
  .time-row .tag{grid-column:1}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .sticky-text span{display:none}
  .sticky-inner{padding:9px 16px}
  .fab{bottom:5.4rem;height:52px;min-width:52px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0B1730;
  --panel-2:#0E1E3D;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --blue-deep:#1D4ED8;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --soft:#CBD5E1;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 42px rgba(3,7,18,.6);
  --shadow-soft:0 10px 26px rgba(3,7,18,.45);
  --maxw:1200px;
  --space:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  padding-bottom:86px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cyan)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue),var(--cyan));
  color:#04101f;font-weight:800;font-size:.82rem;letter-spacing:.02em;
  box-shadow:0 0 18px rgba(56,189,248,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:.98rem;font-weight:700;color:var(--text)}
.brand-text span{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:block;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--soft);
}
.main-nav a:hover{background:rgba(56,189,248,.1);color:var(--cyan)}
.main-nav a.active{background:rgba(37,99,235,.22);color:#fff;box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;
  color:var(--cyan);border:1px solid rgba(56,189,248,.35);background:transparent;white-space:nowrap;
}
.btn-login:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-signup{
  padding:10px 18px;border-radius:var(--radius-pill);font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101f;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.btn-signup:hover{color:#04101f;transform:translateY(-1px);box-shadow:0 0 26px rgba(56,189,248,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:1rem;color:var(--cyan)}
/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#04101f;
  box-shadow:0 10px 26px rgba(37,99,235,.35);
}
.btn-primary:hover{transform:translateY(-2px);color:#04101f;box-shadow:0 14px 34px rgba(56,189,248,.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:rgba(56,189,248,.4);color:var(--cyan)}
.btn-outline:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
/* ---------- SECTION BASE ---------- */
.section{padding:var(--space) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
h2.section-title{font-size:clamp(1.5rem,3.1vw,2.15rem);font-weight:800}
.lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.7}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  background:rgba(56,189,248,.1);color:var(--cyan);border:1px solid var(--line);
}
.tag--hot{background:rgba(37,99,235,.22);color:#fff;border-color:var(--line-strong)}
/* ---------- CATEGORY HERO (slash block) ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(102deg,rgba(3,7,18,.97) 6%,rgba(3,7,18,.86) 48%,rgba(8,18,41,.62) 100%),url('/assets/images/34ca1f64ba17a14d.jpg');
  background-size:cover;background-position:center;
  padding:clamp(52px,7.5vw,96px) 0 clamp(46px,6vw,80px);
  border-bottom:1px solid var(--line);
}
.cat-hero .slash{
  position:absolute;left:-10%;top:-24%;width:74%;height:158%;
  background:linear-gradient(150deg,rgba(37,99,235,.34),rgba(56,189,248,.12) 58%,rgba(56,189,248,0) 100%);
  transform:skewX(-13deg);
  border-right:1px solid rgba(56,189,248,.3);
  pointer-events:none;
}
.cat-hero .grid-lines{
  position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:radial-gradient(ellipse at 26% 24%,#000 18%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse at 26% 24%,#000 18%,transparent 76%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero-copy h1{font-size:clamp(1.7rem,4vw,2.9rem);font-weight:800;line-height:1.22}
.hero-copy h1 .hl{
  background:linear-gradient(120deg,var(--cyan),var(--holo) 58%,var(--lime));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;color:var(--soft);font-size:1.02rem;line-height:1.7;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.08);border:1px solid var(--line);
  font-size:.8rem;color:var(--soft);
}
.pill i{color:var(--cyan);font-size:.8rem}
.hero-panel{
  background:linear-gradient(160deg,rgba(14,30,61,.92),rgba(11,23,48,.86));
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow);
}
.hero-panel h3{font-size:1rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--holo)}
.rate-line{
  margin-top:18px;display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:14px;border-bottom:1px dashed rgba(148,163,184,.28);
}
.rate-line span{font-size:.85rem;color:var(--muted)}
.rate-line strong{font-family:'JetBrains Mono',monospace;font-size:1.5rem;font-weight:600;color:#fff}
.hero-metrics{margin-top:16px;display:grid;gap:12px}
.hero-metrics li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:var(--soft)}
.hero-metrics i{color:var(--lime);margin-top:4px}
/* ---------- FEATURE CARDS ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 22px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.feature-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(37,99,235,.2);border:1px solid var(--line-strong);color:var(--cyan);font-size:1.05rem;
  margin-bottom:16px;
}
.feature-card h3{font-size:1.08rem;font-weight:700;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:.94rem}
.feature-meta{margin-top:16px;font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--holo)}
/* ---------- TIER LIST ---------- */
.tier-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.tier-list{display:grid;gap:12px}
.tier-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;border-radius:var(--radius-sm);
  background:linear-gradient(100deg,rgba(14,30,61,.9),rgba(11,23,48,.6));
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.tier-row:hover{border-color:var(--line-strong);transform:translateX(4px)}
.tier-row .t-left{display:flex;align-items:center;gap:14px}
.tier-row .t-index{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--cyan);
  background:rgba(56,189,248,.1);border:1px solid var(--line);
}
.tier-row .t-name{font-weight:600;font-size:.96rem}
.tier-row .t-note{display:block;font-size:.8rem;color:var(--muted);font-weight:400;margin-top:2px}
.tier-row .t-value{font-family:'JetBrains Mono',monospace;font-size:1.05rem;font-weight:600;color:var(--lime);white-space:nowrap}
.tier-note-box{
  margin-top:22px;padding:18px 20px;border-radius:var(--radius-sm);
  background:rgba(56,189,248,.06);border:1px dashed var(--line-strong);
  font-size:.88rem;color:var(--soft);
}
/* ---------- STEPS ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step-card{
  position:relative;padding:24px 20px 22px;
  border-radius:var(--radius);background:var(--panel-2);
  border:1px solid var(--line);
}
.step-card .step-num{
  font-family:'JetBrains Mono',monospace;font-size:.78rem;font-weight:600;
  color:var(--cyan);letter-spacing:.1em;
}
.step-card h3{margin-top:12px;font-size:1rem;font-weight:700}
.step-card p{margin-top:8px;font-size:.9rem;color:var(--muted)}
.step-card::after{
  content:"";position:absolute;right:-10px;top:50%;width:18px;height:2px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}
.step-card:last-child::after{display:none}
/* ---------- SCENE ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-card{
  display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;
  padding:18px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease;
}
.scene-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.scene-card img{width:132px;height:104px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--line)}
.scene-card h3{font-size:1rem;font-weight:700}
.scene-card p{margin-top:8px;font-size:.9rem;color:var(--muted)}
/* ---------- PROOF ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.proof-card{
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,30,61,.85),rgba(11,23,48,.7));
  border:1px solid var(--line);
}
.proof-card .stars{color:#FACC15;font-size:.82rem;letter-spacing:.15em}
.proof-card blockquote{margin:14px 0 0;font-size:.95rem;color:var(--soft);line-height:1.7}
.proof-author{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--muted)}
.proof-author span.avatar{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:rgba(56,189,248,.14);border:1px solid var(--line);color:var(--cyan);font-weight:700;font-size:.8rem;
}
.stat-strip{
  margin-top:26px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:22px;border-radius:var(--radius);
  background:rgba(8,18,41,.7);border:1px solid var(--line);
}
.stat-strip div strong{display:block;font-family:'JetBrains Mono',monospace;font-size:1.35rem;color:#fff}
.stat-strip div span{font-size:.82rem;color:var(--muted)}
/* ---------- COMPARE ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.compare-col{
  padding:26px 24px;border-radius:var(--radius);border:1px solid var(--line);
  background:var(--panel);
}
.compare-col.is-good{border-color:var(--line-strong);background:linear-gradient(160deg,rgba(37,99,235,.18),rgba(11,23,48,.9))}
.compare-col h3{font-size:1.05rem;font-weight:700;display:flex;align-items:center;gap:10px}
.compare-col ul{margin-top:18px;display:grid;gap:12px}
.compare-col li{display:flex;gap:10px;font-size:.92rem;color:var(--soft)}
.compare-col li i{color:var(--lime);margin-top:4px}
.compare-col.is-plain li i{color:#64748B}
/* ---------- NEWS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-cat{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.news-body h3{font-size:1rem;font-weight:700;line-height:1.45}
.news-body p{font-size:.9rem;color:var(--muted);flex:1}
.news-date{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:#64748B}
.news-empty{
  grid-column:1/-1;padding:28px;border-radius:var(--radius);
  border:1px dashed var(--line-strong);background:rgba(56,189,248,.05);
  color:var(--soft);text-align:center;
}
.news-more{margin-top:26px;display:flex;justify-content:flex-start}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--panel);overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-weight:600;font-size:.98rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:.78rem;color:var(--cyan);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:.93rem}
/* ---------- CTA / COMMIT ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:calc(var(--radius) + 6px);
  border:1px solid var(--line-strong);
  background-image:linear-gradient(115deg,rgba(3,7,18,.94),rgba(8,18,41,.86)),url('/assets/images/2df4e5684c9f3721.jpg');
  background-size:cover;background-position:center;
  padding:clamp(30px,4.4vw,52px);
}
.cta-band-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.4rem,2.9vw,2rem);font-weight:800}
.cta-band p{margin-top:14px;color:var(--soft);font-size:.98rem}
.commit-list{margin-top:22px;display:grid;gap:12px}
.commit-list li{display:flex;gap:11px;font-size:.92rem;color:var(--soft)}
.commit-list i{color:var(--lime);margin-top:4px}
.lead-form{
  background:rgba(11,23,48,.94);border:1px solid var(--line-strong);
  border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);
}
.lead-form h3{font-size:1.05rem;font-weight:700}
.lead-form p{margin-top:8px;font-size:.86rem;color:var(--muted)}
.field{margin-top:16px}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--soft);margin-bottom:7px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(3,7,18,.75);border:1px solid var(--line);
  color:#fff;font-size:.92rem;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#64748B}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16);
}
.form-note{margin-top:14px;font-size:.78rem;color:#64748B}
.form-msg{margin-top:14px;font-size:.86rem;color:var(--lime);display:none}
.form-msg.show{display:block}
.channel-row{
  margin-top:30px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.channel-row span.ch-label{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-right:6px}
.channel-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(56,189,248,.06);
  font-size:.86rem;color:var(--soft);
}
.channel-link:hover{border-color:var(--line-strong);color:#fff;background:rgba(56,189,248,.14)}
.channel-link.is-current{border-color:var(--line-strong);color:#fff;background:rgba(37,99,235,.24)}
/* ---------- FOOTER ---------- */
.site-footer{
  background:linear-gradient(180deg,var(--bg-2),#02050f);
  border-top:1px solid var(--line);
  padding:clamp(46px,5.5vw,72px) 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{margin-top:18px;font-size:.9rem;color:var(--muted);max-width:360px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--cyan);
}
.footer-social a:hover{background:rgba(56,189,248,.18);color:#fff}
.footer-col h4{font-size:.86rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--holo);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:.9rem;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:.82rem;color:#64748B;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--soft);font-size:.78rem;
}
/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:104px;z-index:50;
  width:58px;height:58px;border-radius:var(--radius-pill);
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)),linear-gradient(140deg,var(--cyan),var(--blue),var(--lime));
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  opacity:.78;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  animation:fabFloat 3.6s ease-in-out infinite;
}
.fab-support i{font-size:1.25rem;color:var(--cyan);transition:transform .4s ease}
.fab-support:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 32px rgba(56,189,248,.7);color:inherit}
.fab-support:hover i{transform:rotate(360deg);animation:fabFlicker .6s ease}
.fab-support:active{transform:scale(.94) translateY(2px)}
.fab-dot{
  position:absolute;top:6px;right:6px;width:11px;height:11px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px rgba(7,7,13,.9);
  animation:dotPulse 1.6s ease-in-out infinite;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes fabFlicker{0%,100%{opacity:1}45%{opacity:.45}70%{opacity:1}}
@keyframes dotPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.7}}
/* ---------- STICKY CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(3,7,18,.94);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line-strong);
  padding:12px 0;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.sticky-text strong{display:block;font-size:.94rem}
.sticky-text span{font-size:.8rem;color:var(--muted)}
/* ---------- RESPONSIVE ---------- */
@media (max-width:1199px){
  .hero-grid{gap:38px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;margin-left:0;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line);
    padding:10px 20px 18px;
    display:none;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .main-nav a{padding:12px 10px}
  .header-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .tier-wrap{grid-template-columns:1fr;gap:30px}
  .step-grid{grid-template-columns:1fr 1fr}
  .step-card::after{display:none}
  .proof-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .cta-band-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{padding-bottom:96px}
  .scene-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .sticky-text span{display:none}
  .sticky-cta .btn{padding:11px 18px;font-size:.88rem}
  .fab-support{bottom:118px}
}
@media (max-width:575px){
  .brand-text span{display:none}
  .brand-text strong{font-size:.85rem}
  .header-inner{gap:10px;min-height:64px}
  .btn-login{padding:7px 11px;font-size:.78rem}
  .btn-signup{padding:8px 13px;font-size:.78rem}
  .nav-toggle{width:40px;height:40px}
  .step-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .scene-card{grid-template-columns:1fr}
  .scene-card img{width:100%;height:150px}
  .stat-strip{grid-template-columns:1fr}
  .tier-row{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}