/* roulang page: index */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,25,54,.60);
  --glass-2:rgba(9,18,41,.86);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.45);
  --blue:#2563EB;
  --blue-2:#3B82F6;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --amber:#FACC15;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --glow:0 0 22px rgba(37,99,235,.38);
  --glow-cyan:0 0 20px rgba(56,189,248,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.58);
  --container:1200px;
  --gap:28px;
}
*,*::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,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--holo)}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(1.65rem,3.4vw,2.7rem)}
h2{font-size:clamp(1.4rem,2.6vw,2rem)}
h3{font-size:clamp(1.1rem,1.8vw,1.32rem)}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 18px}
.section{padding:74px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));border-top:1px solid rgba(56,189,248,.10);border-bottom:1px solid rgba(56,189,248,.10)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9);
  font-weight:800;font-size:.95rem;letter-spacing:.03em;color:#fff;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.02rem;font-weight:800}
.brand-text small{font-size:.72rem;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);font-weight:600;font-size:.92rem;padding:9px 14px;border-radius:10px;
  transition:.22s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:1.1rem;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;padding:11px 20px;font-weight:700;font-size:.93rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(37,99,235,.6);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-outline{background:rgba(255,255,255,.04);border-color:rgba(148,163,184,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn-sm{padding:8px 14px;font-size:.84rem;border-radius:10px}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:64px 0 58px;overflow:hidden;
  background:linear-gradient(180deg,#030712 0%,#061024 55%,#030712 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/febb36d4e51b640b.jpg');
  background-size:cover;background-position:center;
  opacity:.26;filter:saturate(.9);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 18%,rgba(37,99,235,.30),transparent 58%),
             linear-gradient(180deg,rgba(3,7,18,.35),rgba(3,7,18,.94));
}
.hero .container{position:relative;z-index:2}
.hero-head{text-align:center;max-width:880px;margin:0 auto 40px}
.hero-lead{color:#CBD5E1;font-size:1.02rem;max-width:820px;margin:0 auto}
.hero-stage{display:grid;grid-template-columns:1fr minmax(340px,480px) 1fr;gap:22px;align-items:center}
.stage-side{display:flex;flex-direction:column;gap:16px}
.value-chip{
  padding:18px 18px 16px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:.26s ease;
}
.value-chip:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--glow)}
.value-chip i{color:var(--cyan);font-size:1.05rem;margin-bottom:8px;display:block}
.value-chip strong{display:block;font-size:.98rem;margin-bottom:4px}
.value-chip span{color:var(--muted);font-size:.86rem;line-height:1.55}
.stage-center{text-align:center}
.stage-frame{
  position:relative;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 0 46px rgba(37,99,235,.42),inset 0 0 0 1px rgba(255,255,255,.05);
  background:#060e22;
}
.stage-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.stage-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(3,7,18,.72));
  pointer-events:none;
}
.stage-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}
.hero-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:42px;
}
.hero-strip li{
  display:flex;align-items:center;gap:10px;padding:13px 16px;border-radius:14px;
  background:rgba(8,18,41,.62);border:1px solid var(--line);font-size:.88rem;color:#CBD5E1;
}
.hero-strip i{color:var(--green)}

/* ---------- Stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{padding:24px 20px;border-radius:var(--radius);background:var(--glass-2);border:1px solid var(--line);transition:.26s ease}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--glow)}
.stat-value{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;color:#fff;display:block;letter-spacing:-.02em}
.stat-label{color:var(--muted);font-size:.88rem;display:block;margin-top:6px}
.stat-card i{color:var(--cyan);margin-bottom:10px;display:block;font-size:1.1rem}

/* ---------- Service matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.matrix-item{
  padding:26px 22px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(13,25,54,.72),rgba(6,13,32,.72));
  border:1px solid var(--line);transition:.26s ease;
}
.matrix-item:hover{border-color:var(--line-strong);box-shadow:var(--glow-cyan);transform:translateY(-4px)}
.matrix-item .mi-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:14px;
  background:rgba(37,99,235,.20);border:1px solid var(--line-strong);color:var(--cyan);
}
.matrix-item h3{font-size:1.05rem;margin-bottom:8px}
.matrix-item p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- Editorial overview ---------- */
.overview{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start}
.overview-media{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.overview-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.topic-block{padding-bottom:20px;margin-bottom:20px;border-bottom:1px dashed rgba(148,163,184,.22)}
.topic-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.topic-block h3{color:#fff;display:flex;gap:10px;align-items:flex-start}
.topic-block h3 i{color:var(--cyan);font-size:.95rem;margin-top:6px}
.topic-block p{color:var(--muted);font-size:.94rem;margin:0}
.tick-list{display:grid;gap:10px;margin-top:14px}
.tick-list li{display:flex;gap:10px;color:#CBD5E1;font-size:.9rem;align-items:flex-start}
.tick-list i{color:var(--green);margin-top:5px;font-size:.82rem}

/* ---------- Compare ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--glass-2)}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:.92rem;border-bottom:1px solid rgba(148,163,184,.12)}
table.compare thead th{background:rgba(37,99,235,.16);color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em}
table.compare td:first-child{color:#E2E8F0;font-weight:600;width:26%}
table.compare td.good{color:#A7F3D0}
table.compare td.bad{color:#FCA5A5}
table.compare tbody tr:hover{background:rgba(56,189,248,.05)}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(37,99,235,.2))}
.tl-item{position:relative;padding:0 0 26px 12px}
.tl-item::before{content:"";position:absolute;left:-25px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(56,189,248,.16)}
.tl-item h3{font-size:1rem;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:.9rem;margin:0}
.tl-tag{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--holo);display:block;margin-bottom:4px}

/* ---------- App download ---------- */
.app-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.app-card{
  padding:28px 24px;border-radius:var(--radius-l);border:1px solid var(--line);
  background:linear-gradient(155deg,rgba(13,25,54,.86),rgba(5,12,30,.9));
  transition:.28s ease;display:flex;flex-direction:column;
}
.app-card:hover{border-color:var(--line-strong);box-shadow:var(--glow)}
.app-card i.app-logo{font-size:2rem;color:#fff;margin-bottom:12px}
.app-card h3{margin-bottom:6px}
.app-card p{color:var(--muted);font-size:.9rem}
.app-meta{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 18px}
.tag{
  font-size:.74rem;font-weight:700;padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);color:var(--cyan);
}
.tag.green{background:rgba(34,197,94,.12);border-color:rgba(34,197,94,.32);color:#86EFAC}
.tag.amber{background:rgba(250,204,21,.12);border-color:rgba(250,204,21,.32);color:#FDE68A}
.app-card .btn{margin-top:auto;align-self:flex-start}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.step{padding:20px;border-radius:var(--radius);background:rgba(8,18,41,.6);border:1px solid var(--line)}
.step span.num{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;font-weight:800;font-size:.86rem;margin-bottom:12px;
}
.step h4{font-size:.98rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.87rem;margin:0}

/* ---------- Progress ---------- */
.progress-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.progress-card{padding:24px 22px;border-radius:var(--radius);background:var(--glass-2);border:1px solid var(--line)}
.progress-card h3{font-size:1rem;margin-bottom:6px}
.progress-card p{color:var(--muted);font-size:.87rem}
.bar{height:9px;border-radius:999px;background:rgba(148,163,184,.16);overflow:hidden;margin-top:14px}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:var(--glow-cyan)}
.bar-label{display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted);margin-top:8px}

/* ---------- Category wall ---------- */
.cat-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  display:block;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  background:var(--glass-2);transition:.28s ease;color:var(--text)
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow);color:var(--text)}
.cat-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cat-card-body{padding:20px}
.cat-card-body h3{font-size:1.06rem;margin-bottom:8px}
.cat-card-body p{color:var(--muted);font-size:.88rem;margin-bottom:12px}
.cat-more{font-size:.85rem;font-weight:700;color:var(--cyan)}
.cat-more i{margin-left:6px;transition:transform .22s ease}
.cat-card:hover .cat-more i{transform:translateX(4px)}

/* ---------- Reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{padding:24px 22px;border-radius:var(--radius);background:var(--glass-2);border:1px solid var(--line);display:flex;flex-direction:column}
.stars{color:var(--amber);font-size:.86rem;margin-bottom:12px;letter-spacing:2px}
.review p{color:#CBD5E1;font-size:.91rem;flex:1}
.reviewer{display:flex;align-items:center;gap:12px;margin-top:14px;border-top:1px solid rgba(148,163,184,.14);padding-top:14px}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#0EA5E9);display:grid;place-items:center;font-weight:800;font-size:.85rem;color:#fff}
.reviewer strong{display:block;font-size:.9rem}
.reviewer small{color:var(--muted-2);font-size:.77rem}

/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.trust-list{display:grid;gap:14px}
.trust-item{display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius-s);background:rgba(8,18,41,.62);border:1px solid var(--line)}
.trust-item i{color:var(--cyan);font-size:1.1rem;margin-top:4px}
.trust-item strong{display:block;font-size:.96rem;margin-bottom:3px}
.trust-item span{color:var(--muted);font-size:.87rem}
.pay-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pay-badge{
  font-size:.8rem;font-weight:700;padding:8px 14px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid rgba(148,163,184,.24);color:#E2E8F0;
}
.trust-media{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.trust-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- News ---------- */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:30px;align-items:start}
.news-list{display:grid;gap:14px}
.news-item{
  display:block;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass-2);border:1px solid var(--line);transition:.24s ease;color:var(--text)
}
.news-item:hover{border-color:var(--line-strong);transform:translateX(4px);color:var(--text)}
.news-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:.76rem;color:var(--muted-2);margin-bottom:8px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.news-item h3{font-size:1.02rem;margin-bottom:6px}
.news-item p{color:var(--muted);font-size:.88rem;margin:0}
.news-side{padding:24px 22px;border-radius:var(--radius);background:var(--glass-2);border:1px solid var(--line);position:sticky;top:96px}
.news-side h3{font-size:1rem;margin-bottom:14px}
.side-item{display:block;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.18);color:#CBD5E1;font-size:.88rem}
.side-item:last-of-type{border-bottom:0}
.side-item:hover{color:var(--cyan)}
.side-item small{display:block;color:var(--muted-2);font-size:.74rem;margin-top:4px}
.empty-note{color:var(--muted);font-size:.9rem;padding:18px 0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:rgba(8,18,41,.62);margin-bottom:12px;overflow:hidden}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:700;font-size:.98rem;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:center;color:#fff;
}
.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 .24s ease}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:.9rem;margin:0}

/* ---------- Lead form ---------- */
.lead-wrap{
  border-radius:var(--radius-l);border:1px solid var(--line-strong);
  background:linear-gradient(150deg,rgba(13,25,54,.92),rgba(4,10,26,.95));
  padding:40px 34px;box-shadow:0 0 40px rgba(37,99,235,.22);
  display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
}
.lead-wrap h2{margin-bottom:12px}
.lead-wrap p.lead-sub{color:var(--muted);font-size:.94rem}
.lead-form{display:grid;gap:14px}
.field label{display:block;font-size:.82rem;font-weight:700;color:#CBD5E1;margin-bottom:7px;text-transform:uppercase;letter-spacing:.08em}
.field input,.field select{
  width:100%;padding:13px 15px;border-radius:12px;color:var(--text);
  background:rgba(3,7,18,.62);border:1px solid rgba(148,163,184,.28);transition:.22s ease;
}
.field input::placeholder{color:var(--muted-2)}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:var(--glow-cyan);outline:none}
.lead-form .btn{width:100%}
.form-note{font-size:.78rem;color:var(--muted-2);text-align:center}

/* ---------- Footer ---------- */
.site-footer{background:#020509;border-top:1px solid rgba(56,189,248,.14);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-grid p{color:var(--muted);font-size:.88rem}
.footer-grid h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:#E2E8F0;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:.89rem}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(148,163,184,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--muted-2);font-size:.82rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  border:1px solid rgba(239,68,68,.5);color:#FCA5A5;font-size:.74rem;font-weight:800;letter-spacing:.08em;
}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px 12px 14px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
    linear-gradient(120deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E2F4FF;font-weight:700;font-size:.86rem;
  opacity:.82;transition:.26s ease;
}
.fab-support:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 32px rgba(6,182,212,.7);color:#fff}
.fab-support:active{transform:scale(.95)}
.fab-support .fab-icon{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:rgba(56,189,248,.18);color:var(--cyan)}
.fab-support .fab-dot{
  position:absolute;top:6px;right:8px;width:9px;height:9px;border-radius:50%;
  background:#EF4444;box-shadow:0 0 0 3px rgba(3,7,18,.9);animation:pulse 1.8s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(1.25)}}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .hero-stage{grid-template-columns:1fr;gap:26px}
  .stage-side{flex-direction:row;flex-wrap:wrap}
  .stage-side .value-chip{flex:1 1 240px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .cat-wall{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .progress-grid{grid-template-columns:repeat(2,1fr)}
  .overview,.trust-grid,.news-layout,.lead-wrap{grid-template-columns:1fr}
  .news-side{position:static}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);padding:14px 18px 18px;
    display:none;margin-left:0;
  }
  .main-nav.open{display:flex}
  .nav-toggle{display:inline-grid;place-items:center;margin-left:auto}
  .header-actions{margin-left:0}
  .header-inner{flex-wrap:nowrap}
  .brand-text small{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:48px 0 46px}
  .steps{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .hero-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .btn{padding:10px 16px;font-size:.88rem}
  .brand-text strong{font-size:.94rem}
}
@media (max-width:520px){
  .stats-grid,.matrix,.cat-wall,.review-grid,.progress-grid{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:inline-flex;padding:9px 12px;font-size:.8rem}
  .header-actions .btn-primary{padding:9px 12px;font-size:.8rem}
  .brand-mark{width:40px;height:40px;font-size:.82rem}
  .lead-wrap{padding:28px 20px}
  .fab-support{padding:10px 14px 10px 12px;bottom:84px}
  .fab-support .fab-text{display:none}
}

/* roulang page: article */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,25,54,.60);
  --glass-2:rgba(9,18,41,.86);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.45);
  --blue:#2563EB;
  --blue-2:#3B82F6;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --amber:#FACC15;
  --rose:#F43F5E;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --glow:0 0 22px rgba(37,99,235,.38);
  --glow-cyan:0 0 20px rgba(56,189,248,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.58);
  --container:1200px;
  --gap:28px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--holo)}
p{margin:0 0 14px}
button,input,select,textarea{font-family:inherit;font-size:1rem}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 18px}
.section{padding:74px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));border-top:1px solid rgba(56,189,248,.10);border-bottom:1px solid rgba(56,189,248,.10)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.95rem);font-weight:800;line-height:1.32;margin:0 0 12px;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9);
  font-weight:800;font-size:.95rem;letter-spacing:.03em;color:#fff;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.02rem;font-weight:800}
.brand-text small{font-size:.72rem;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);font-weight:600;font-size:.92rem;padding:9px 14px;border-radius:10px;
  transition:.22s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:1.1rem;align-items:center;justify-content:center;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;padding:11px 20px;font-weight:700;font-size:.93rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;line-height:1.2;
  text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(37,99,235,.6);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-outline{background:rgba(255,255,255,.04);border-color:rgba(148,163,184,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn-sm{padding:8px 14px;font-size:.84rem;border-radius:10px}
/* ---------- Reading progress ---------- */
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:80}
.read-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 14px rgba(56,189,248,.7);transition:width .12s linear}
/* ---------- Article hero ---------- */
.article-hero{position:relative;padding:44px 0 58px;overflow:hidden;background:linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%)}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/17790ee3a39735b0.jpg');
  background-size:cover;background-position:center;opacity:.2;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 10%,rgba(37,99,235,.34),transparent 56%),
             linear-gradient(180deg,rgba(3,7,18,.55),rgba(3,7,18,.96));
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:.82rem;color:var(--muted);margin-bottom:20px}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--cyan)}
.breadcrumb-nav i{font-size:.65rem;color:var(--muted-2)}
.breadcrumb-nav span{color:var(--cyan)}
.article-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:start}
.article-hero h1{font-size:clamp(1.7rem,3.3vw,2.55rem);line-height:1.25;font-weight:800;margin:14px 0 16px;letter-spacing:-.01em}
.hero-lead{color:#CBD5E1;font-size:1.02rem;max-width:660px;margin:0 0 22px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 20px;color:var(--muted);font-size:.85rem;margin-bottom:26px}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row i{color:var(--cyan)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.article-hero-media{display:flex;flex-direction:column;gap:18px}
.media-frame{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line-strong);box-shadow:0 0 44px rgba(37,99,235,.4);background:#060e22}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.invite-card{padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.invite-card h3{font-size:1rem;font-weight:700;margin:0 0 6px;display:flex;align-items:center;gap:9px}
.invite-card h3 i{color:var(--amber)}
.invite-card p{color:var(--muted);font-size:.86rem;margin:0 0 14px}
.progress-track{height:10px;border-radius:999px;background:rgba(148,163,184,.16);overflow:hidden;margin-bottom:9px}
.progress-track i{display:block;height:100%;width:60%;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 16px rgba(56,189,248,.6)}
.progress-meta{display:flex;justify-content:space-between;font-size:.78rem;color:var(--muted);margin-bottom:16px}
/* ---------- Article layout ---------- */
.article-content-section{padding-top:58px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:42px;align-items:start}
.article-main{min-width:0}
.article-body{font-size:1.02rem;color:#CBD5E1;line-height:1.75}
.article-body h2{font-size:clamp(1.24rem,2.1vw,1.55rem);color:#fff;font-weight:800;margin:40px 0 14px;line-height:1.35;position:relative;padding-left:17px}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--cyan),var(--blue));box-shadow:var(--glow-cyan)}
.article-body h3{font-size:1.15rem;color:#fff;font-weight:700;margin:28px 0 10px;line-height:1.4}
.article-body h4{font-size:1.02rem;color:#fff;font-weight:700;margin:22px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:0}
.article-body li{position:relative;padding-left:26px;margin-bottom:10px;line-height:1.7}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 10px rgba(56,189,248,.55);
}
.article-body ol{counter-reset:oli}
.article-body ol li{counter-increment:oli}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.18em;width:20px;height:20px;border-radius:6px;
  display:grid;place-items:center;font-size:.72rem;font-weight:700;color:#fff;
  background:rgba(37,99,235,.28);border:1px solid var(--line-strong);
}
.article-body a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(56,189,248,.45);text-underline-offset:3px}
.article-body a:hover{color:#fff}
.article-body img{border-radius:var(--radius);margin:24px 0;border:1px solid var(--line);width:100%}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(37,99,235,.18),rgba(6,12,30,.6));
  border:1px solid var(--line-strong);color:#E2E8F0;font-size:1.05rem;font-style:normal;line-height:1.7;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.92rem;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid rgba(56,189,248,.18);padding:11px 14px;text-align:left}
.article-body th{background:rgba(37,99,235,.18);color:#fff;font-weight:700}
.article-body strong{color:#fff}
.article-empty{text-align:left;padding:40px 32px;border-radius:var(--radius-l);background:var(--glass);border:1px solid var(--line)}
.article-empty i{font-size:2rem;color:var(--cyan);display:block;margin-bottom:14px}
.article-empty h2{font-size:1.35rem;margin:0 0 10px;font-weight:800}
.article-empty p{color:var(--muted)}
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:18px}
.side-card{padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.side-card h3{font-size:.98rem;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--cyan)}
.side-list li{position:relative;padding-left:22px;font-size:.88rem;color:var(--muted);margin-bottom:11px;line-height:1.6}
.side-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(56,189,248,.7);
}
.side-list li strong{color:var(--text);display:block;font-size:.92rem;font-weight:600}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;padding:6px 11px;border-radius:999px;background:rgba(56,189,248,.1);border:1px solid var(--line);color:#CBD5E1}
.tag i{color:var(--cyan);font-size:.72rem}
/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(13,25,54,.9),rgba(6,12,30,.72));
  border:1px solid var(--line);transition:.26s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.stat-value{
  display:block;font-size:2rem;font-weight:800;line-height:1.1;
  background:linear-gradient(120deg,#FFFFFF,var(--holo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{display:block;margin:10px 0 6px;font-weight:700;font-size:.94rem}
.stat-card p{margin:0;color:var(--muted);font-size:.84rem;line-height:1.6}
/* ---------- Feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:20px}
.feature-card{
  padding:26px 24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:.26s ease;
}
.feature-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 0 30px rgba(37,99,235,.28)}
.feature-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(140deg,rgba(37,99,235,.9),rgba(14,165,233,.9));
  color:#fff;font-size:1.05rem;box-shadow:var(--glow);
}
.feature-card h3{font-size:1.05rem;font-weight:700;margin:0 0 9px}
.feature-card p{color:var(--muted);font-size:.9rem;margin:0 0 14px}
.feature-card ul{display:grid;gap:8px}
.feature-card ul li{position:relative;padding-left:20px;font-size:.85rem;color:#CBD5E1}
.feature-card ul li::before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--cyan)}
/* ---------- Compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{padding:28px 26px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(9,18,41,.6)}
.compare-col.old{border-color:rgba(244,63,94,.28)}
.compare-col.new{border-color:rgba(34,197,94,.32);background:linear-gradient(160deg,rgba(9,32,30,.6),rgba(6,12,30,.72))}
.compare-col h3{font-size:1.05rem;font-weight:700;margin:0 0 16px;display:flex;align-items:center;gap:10px}
.compare-col.old h3 i{color:var(--rose)}
.compare-col.new h3 i{color:var(--green)}
.compare-col li{position:relative;padding-left:24px;margin-bottom:12px;font-size:.9rem;color:var(--muted);line-height:1.65}
.compare-col li::before{position:absolute;left:0;top:0;font-size:.85rem}
.compare-col.old li::before{content:"✕";color:var(--rose)}
.compare-col.new li::before{content:"✓";color:var(--green)}
.compare-col li strong{color:var(--text);display:block}
/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.timeline-item{padding:24px 22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);position:relative;transition:.26s ease}
.timeline-item:hover{border-color:var(--line-strong);box-shadow:0 0 26px rgba(37,99,235,.25)}
.timeline-step{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);font-weight:700;display:block;margin-bottom:10px}
.timeline-item h3{font-size:1rem;font-weight:700;margin:0 0 8px}
.timeline-item p{color:var(--muted);font-size:.86rem;margin:0}
/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-item{padding:22px;border-radius:var(--radius);background:rgba(9,18,41,.66);border:1px solid var(--line);text-align:left}
.trust-item i{font-size:1.35rem;color:var(--cyan);display:block;margin-bottom:12px}
.trust-item strong{display:block;font-size:.95rem;margin-bottom:7px}
.trust-item p{color:var(--muted);font-size:.85rem;margin:0}
/* ---------- Channel grid ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel-card{
  display:flex;flex-direction:column;border-radius:var(--radius-l);overflow:hidden;
  background:var(--glass-2);border:1px solid var(--line);transition:.28s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 34px rgba(37,99,235,.32)}
.channel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.channel-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.channel-body h3{font-size:1.05rem;font-weight:700;margin:0;color:var(--text)}
.channel-body p{color:var(--muted);font-size:.88rem;margin:0}
.channel-link{margin-top:auto;font-size:.88rem;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:8px}
.channel-link:hover{gap:12px;color:#fff}
/* ---------- Quick answers ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.quick-card{padding:24px;border-radius:var(--radius);border-left:3px solid var(--cyan);background:rgba(9,18,41,.62);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.quick-card h3{font-size:1rem;font-weight:700;margin:0 0 9px}
.quick-card p{color:var(--muted);font-size:.9rem;margin:0}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(9,18,41,.6);overflow:hidden;transition:.22s ease}
.faq-item[open]{border-color:var(--line-strong);box-shadow:0 0 22px rgba(37,99,235,.22)}
.faq-item summary{cursor:pointer;padding:17px 20px;font-weight:600;font-size:.96rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--cyan);font-size:1.2rem;font-weight:700;flex:0 0 auto}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:.92rem;line-height:1.7}
.faq-answer p:last-child{margin-bottom:0}
/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:38px;padding:42px;
  border-radius:var(--radius-l);
  background:linear-gradient(140deg,rgba(37,99,235,.24),rgba(6,12,30,.9));
  border:1px solid var(--line-strong);box-shadow:0 0 46px rgba(37,99,235,.24);
}
.cta-panel h2{font-size:clamp(1.35rem,2.3vw,1.85rem);font-weight:800;margin:0 0 14px;line-height:1.32}
.cta-panel p{color:#CBD5E1;margin-bottom:18px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:#CBD5E1}
.cta-points i{color:var(--cyan);margin-top:5px}
.cta-form{padding:26px;border-radius:var(--radius);background:rgba(3,7,18,.72);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.field{display:block;margin-bottom:14px}
.field span{display:block;font-size:.83rem;color:var(--muted);margin-bottom:7px;font-weight:500}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:12px;background:rgba(3,7,18,.72);
  border:1px solid var(--line);color:var(--text);outline:none;transition:.2s ease;
}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.field select option{background:#081229;color:var(--text)}
.form-note{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;font-size:.85rem;background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#BBF7D0}
.cta-form.is-sent .form-note{display:block}
.cta-form .btn{width:100%;margin-top:6px}
.form-hint{font-size:.78rem;color:var(--muted-2);margin:12px 0 0}
/* ---------- Footer ---------- */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.9),#030712);border-top:1px solid rgba(56,189,248,.14);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer p{color:var(--muted);font-size:.88rem;max-width:520px}
.site-footer h4{font-size:.92rem;font-weight:700;margin:0 0 16px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:.88rem}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(56,189,248,.12);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  color:var(--muted-2);font-size:.82rem;
}
.age-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid rgba(56,189,248,.24);color:#CBD5E1}
.age-badge i{color:var(--amber)}
/* ---------- FAB ---------- */
.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;
  background:rgba(7,7,13,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.82),rgba(7,7,13,.82)),linear-gradient(120deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#fff;font-size:.85rem;font-weight:700;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:.26s ease;
  min-height:52px;
}
.fab:hover{opacity:1;color:#fff;box-shadow:0 0 30px rgba(56,189,248,.7);transform:translateY(-2px)}
.fab:active{transform:translateY(1px) scale(.97)}
.fab i{color:var(--cyan);font-size:1rem}
.fab .fab-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .main-nav{
    position:absolute;top:calc(100% + 1px);left:0;right:0;display:none;flex-direction:column;
    align-items:stretch;gap:4px;padding:14px 18px;margin-left:0;
    background:rgba(3,7,18,.97);border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  }
  .main-nav.open{display:flex}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-actions{margin-left:0}
  .article-hero-grid{grid-template-columns:1fr;gap:30px}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{position:static}
  .stat-grid,.trust-grid,.timeline{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr 1fr}
  .cta-panel{grid-template-columns:1fr;padding:32px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .header-inner{min-height:66px;gap:12px}
  .brand-mark{width:40px;height:40px;border-radius:12px;font-size:.85rem}
  .brand-text strong{font-size:.92rem}
  .brand-text small{font-size:.66rem}
  .header-actions .btn{padding:9px 13px;font-size:.82rem}
  .compare-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .article-body h2{font-size:1.22rem}
}
@media (max-width:560px){
  .brand-text small{display:none}
  .header-actions{gap:6px}
  .header-actions .btn{padding:8px 10px;font-size:.76rem;border-radius:9px}
  .nav-toggle{width:40px;height:40px}
  .stat-grid,.trust-grid,.channel-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:24px 18px}
  .cta-form{padding:20px}
  .article-empty{padding:28px 20px}
  .fab{padding:11px 15px;font-size:.78rem;bottom:5rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,25,54,.60);
  --glass-2:rgba(9,18,41,.86);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.45);
  --blue:#2563EB;
  --blue-2:#3B82F6;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --amber:#FACC15;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --glow:0 0 22px rgba(37,99,235,.38);
  --glow-cyan:0 0 20px rgba(56,189,248,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.58);
  --container:1200px;
  --gap:28px;
}
*{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,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--holo)}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.28;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,3.8vw,2.85rem)}
h2{font-size:clamp(1.4rem,2.5vw,2rem)}
h3{font-size:clamp(1.05rem,1.6vw,1.22rem)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 18px}
.section{padding:74px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));border-top:1px solid rgba(56,189,248,.10);border-bottom:1px solid rgba(56,189,248,.10)}
.section-head{max-width:780px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9);
  font-weight:800;font-size:.95rem;letter-spacing:.03em;color:#fff;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.02rem;font-weight:800}
.brand-text small{font-size:.72rem;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);font-weight:600;font-size:.92rem;padding:9px 14px;border-radius:10px;
  transition:.22s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:1.1rem;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;padding:11px 20px;font-weight:700;font-size:.93rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;line-height:1.2;
}
.btn-primary{background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(37,99,235,.6);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-outline{background:rgba(255,255,255,.04);border-color:rgba(148,163,184,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn-sm{padding:8px 14px;font-size:.84rem;border-radius:10px}
/* ---------- Category hero ---------- */
.cat-hero{
  position:relative;padding:66px 0 58px;overflow:hidden;
  background:linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/17790ee3a39735b0.jpg');
  background-size:cover;background-position:center;
  opacity:.24;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 22% 20%,rgba(37,99,235,.32),transparent 56%),
             linear-gradient(180deg,rgba(3,7,18,.42),rgba(3,7,18,.95));
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.cat-hero h1{margin-bottom:16px}
.cat-hero .lead{color:#CBD5E1;font-size:1.03rem;max-width:640px}
.cat-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(56,189,248,.14)}
.hero-fact strong{display:block;font-size:1.5rem;font-weight:800;color:#fff;line-height:1.1}
.hero-fact span{font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:0 0 46px rgba(37,99,235,.42);
  background:#060e22;
}
.hero-visual .frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-badge{
  position:absolute;left:-10px;bottom:-16px;
  background:var(--glass-2);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:14px 18px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);display:flex;align-items:center;gap:12px;
}
.hero-badge i{color:var(--green);font-size:1.25rem}
.hero-badge strong{display:block;font-size:.95rem}
.hero-badge small{color:var(--muted);font-size:.78rem}
/* ---------- Metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:.26s ease;
}
.metric-card:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--glow)}
.metric-card .num{font-size:1.85rem;font-weight:800;color:#fff;line-height:1.05}
.metric-card .num small{font-size:.95rem;color:var(--cyan);font-weight:700}
.metric-card .lbl{color:var(--muted);font-size:.86rem;margin-top:6px;display:block}
.metric-card .bar{height:4px;border-radius:99px;background:rgba(148,163,184,.18);margin-top:14px;overflow:hidden}
.metric-card .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:99px}
/* ---------- Value cards ---------- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.value-card{
  background:linear-gradient(160deg,rgba(13,25,54,.78),rgba(6,14,34,.6));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;
  transition:.26s ease;position:relative;overflow:hidden;
}
.value-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.7;
}
.value-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.value-card i{font-size:1.2rem;color:var(--cyan);margin-bottom:12px;display:block}
.value-card h3{font-size:1.05rem;margin-bottom:8px}
.value-card p{color:var(--muted);font-size:.91rem;margin:0}
/* ---------- Split blocks ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split-media{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.16);color:#CBD5E1;font-size:.95rem}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--green);margin-top:4px}
/* ---------- Steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px 22px;position:relative;transition:.26s ease;
}
.step-item:hover{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-3px)}
.step-item .idx{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#02101f;font-weight:800;
  margin-bottom:14px;font-size:.95rem;
}
.step-item h3{font-size:1rem;margin-bottom:8px}
.step-item p{color:var(--muted);font-size:.88rem;margin:0}
/* ---------- Device table ---------- */
.device-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.device-table th{
  text-align:left;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);background:rgba(8,18,41,.9);padding:15px 18px;font-weight:700;
  border-bottom:1px solid var(--line);
}
.device-table td{padding:16px 18px;color:#CBD5E1;font-size:.92rem;border-bottom:1px solid rgba(148,163,184,.12);vertical-align:top}
.device-table tr:last-child td{border-bottom:0}
.device-table tr:hover td{background:rgba(37,99,235,.08)}
.device-table td strong{color:#fff;display:block;font-size:.95rem}
/* ---------- Payment ---------- */
.pay-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pay-card{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 18px;text-align:left;transition:.26s ease;
}
.pay-card:hover{border-color:var(--line-strong);box-shadow:var(--glow-cyan);transform:translateY(-3px)}
.pay-card .tag{
  display:inline-flex;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--amber);border:1px solid rgba(250,204,21,.35);border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.pay-card h3{font-size:1rem;margin-bottom:6px}
.pay-card p{color:var(--muted);font-size:.87rem;margin:0}
/* ---------- News list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:linear-gradient(165deg,rgba(13,25,54,.72),rgba(5,11,28,.62));
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.26s ease;
}
.news-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#061024}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .thumb img{transform:scale(1.06)}
.news-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:.76rem;color:var(--muted);margin-bottom:10px}
.news-meta span{display:inline-flex;align-items:center;gap:6px}
.news-card h3{font-size:1.02rem;margin-bottom:8px}
.news-card h3 a{color:#fff}
.news-card h3 a:hover{color:var(--cyan)}
.news-card p{color:var(--muted);font-size:.87rem;margin:0 0 16px}
.news-card .more{margin-top:auto;font-weight:700;font-size:.85rem;color:var(--cyan)}
.empty-note{color:var(--muted);text-align:left;padding:26px 0}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:0;overflow:hidden;transition:.24s ease;
}
.faq-item.open{border-color:var(--line-strong);box-shadow:var(--glow)}
.faq-q{
  width:100%;background:transparent;border:0;color:#fff;text-align:left;
  padding:20px 22px;font-weight:700;font-size:1rem;cursor:pointer;
  display:flex;justify-content:space-between;gap:18px;align-items:center;
}
.faq-q i{color:var(--cyan);transition:transform .25s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;color:var(--muted);font-size:.93rem}
.faq-a p{padding:0 22px 20px;margin:0}
.faq-item.open .faq-a{max-height:420px}
/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,rgba(37,99,235,.22),rgba(6,14,34,.92));
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  padding:44px 40px;display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;
  box-shadow:0 0 46px rgba(37,99,235,.26);
}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#CBD5E1;margin-bottom:0}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:.82rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.cta-form input,.cta-form select{
  width:100%;background:rgba(3,7,18,.72);border:1px solid var(--line);border-radius:12px;
  padding:13px 15px;color:#fff;transition:.22s ease;
}
.cta-form input:focus,.cta-form select:focus{border-color:var(--cyan);box-shadow:var(--glow-cyan);outline:none}
.form-note{font-size:.78rem;color:var(--muted-2)}
/* ---------- Footer ---------- */
.site-footer{background:#020610;border-top:1px solid rgba(56,189,248,.14);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.site-footer p{color:var(--muted);font-size:.9rem;max-width:520px}
.site-footer h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:var(--cyan);margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(148,163,184,.14);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  color:var(--muted-2);font-size:.82rem;
}
.age-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(250,204,21,.32);color:var(--amber);border-radius:999px;padding:5px 12px;font-size:.78rem;font-weight:600}
/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  width:58px;height:58px;border-radius:999px;display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;color:var(--cyan);font-size:1.3rem;opacity:.78;
  box-shadow:0 0 20px rgba(6,182,212,.45);transition:.28s ease;
}
.fab-support::before{
  content:"";position:absolute;inset:-2px;border-radius:999px;z-index:-1;
  background:linear-gradient(135deg,var(--cyan),var(--blue),#EC4899);
  opacity:.75;animation:fabPulse 3s ease-in-out infinite;
}
.fab-support:hover{opacity:1;color:#fff;transform:scale(1.08);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab-support:active{transform:scale(.94)}
.fab-support .fab-dot{
  position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:999px;
  background:#F43F5E;box-shadow:0 0 0 2px #030712;animation:fabBlink 1.6s infinite;
}
@keyframes fabPulse{0%,100%{opacity:.45;transform:scale(1)}50%{opacity:.9;transform:scale(1.05)}}
@keyframes fabBlink{0%,100%{opacity:.55}50%{opacity:1}}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .cat-hero-grid,.split,.cta-band{grid-template-columns:1fr;gap:30px}
  .metric-grid,.pay-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .main-nav{margin-left:0}
  .header-inner{flex-wrap:wrap}
  .main-nav{order:3;width:100%;display:none;flex-direction:column;align-items:stretch;gap:4px;padding:10px 0 4px;border-top:1px solid rgba(56,189,248,.14);margin-top:8px}
  .main-nav.open{display:flex}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;order:2}
  .header-actions{order:4;width:100%;display:none;padding-bottom:12px}
  .header-actions.open{display:flex}
  .header-actions .btn{flex:1}
  .header-inner{position:relative}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .cat-hero{padding:52px 0 46px}
  .value-grid,.news-grid,.metric-grid,.pay-grid,.step-grid{grid-template-columns:1fr}
  .device-table th,.device-table td{padding:13px 14px}
  .cta-band{padding:30px 22px}
  .hero-facts{gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .hero-badge{position:static;margin-top:14px;left:auto;bottom:auto}
  .brand-text small{display:none}
}
@media (max-width:520px){
  .btn{padding:10px 16px;font-size:.88rem}
  .btn-lg{padding:12px 20px;font-size:.93rem}
  h1{font-size:1.7rem}
  .device-table{display:block;overflow-x:auto;white-space:nowrap}
  .device-table td,.device-table th{white-space:normal;min-width:180px}
  .fab-support{width:52px;height:52px;bottom:5rem}
}

/* roulang page: category2 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,25,54,.60);
  --glass-2:rgba(9,18,41,.86);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.45);
  --blue:#2563EB;
  --blue-2:#3B82F6;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --amber:#FACC15;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --glow:0 0 22px rgba(37,99,235,.38);
  --glow-cyan:0 0 20px rgba(56,189,248,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.58);
  --container:1200px;
  --gap:28px;
}
*,*::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,'Helvetica Neue',Arial,sans-serif;
  background:
    radial-gradient(1100px 640px at 10% -10%,rgba(37,99,235,.22),transparent 62%),
    radial-gradient(900px 520px at 100% 8%,rgba(56,189,248,.14),transparent 60%),
    var(--bg-0);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--holo)}
h1,h2,h3,h4,h5{color:var(--text);font-weight:800;line-height:1.25;margin:0 0 14px}
h1{font-size:clamp(1.85rem,3.4vw,2.75rem);letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,2.4vw,2rem)}
h3{font-size:1.1rem}
p{margin:0 0 14px;color:#CBD5E1}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 18px}

.section{padding:76px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));
  border-top:1px solid rgba(56,189,248,.10);
  border-bottom:1px solid rgba(56,189,248,.10);
}
.section-head{max-width:780px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--muted);margin-bottom:0;font-size:1.02rem}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.eyebrow i{font-size:.72rem}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9);
  font-weight:800;font-size:.95rem;letter-spacing:.03em;color:#fff;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.02rem;font-weight:800}
.brand-text small{font-size:.72rem;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);font-weight:600;font-size:.92rem;padding:9px 14px;border-radius:10px;
  transition:.22s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:1.1rem;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;padding:11px 20px;font-weight:700;font-size:.93rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(37,99,235,.6);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-outline{background:rgba(255,255,255,.04);border-color:rgba(148,163,184,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(56,189,248,.08)}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn-sm{padding:8px 14px;font-size:.84rem;border-radius:10px}

/* ---------- Hero ---------- */
.cat-hero{position:relative;padding:66px 0 62px;overflow:hidden;background:linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%)}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/17790ee3a39735b0.jpg');
  background-size:cover;background-position:center;
  opacity:.26;filter:saturate(.9);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 22% 12%,rgba(37,99,235,.32),transparent 58%),
             linear-gradient(180deg,rgba(3,7,18,.40),rgba(3,7,18,.95));
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.cat-hero-copy h1{margin-bottom:16px}
.hero-lead{color:#CBD5E1;font-size:1.03rem;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 24px}
.hero-points{display:flex;flex-direction:column;gap:10px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;color:#CBD5E1;font-size:.94rem}
.hero-points i{color:var(--cyan);margin-top:4px;font-size:.85rem}
.hero-panel{
  border-radius:var(--radius-l);border:1px solid var(--line-strong);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 46px rgba(37,99,235,.34);
  overflow:hidden;
}
.panel-media{position:relative}
.panel-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.panel-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(3,7,18,.78))}
.panel-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:6px 12px;border-radius:999px;color:#04121f;
  background:linear-gradient(135deg,#38BDF8,#22D3EE);
  box-shadow:0 0 16px rgba(56,189,248,.5);
}
.panel-specs{padding:18px 20px 20px;display:grid;gap:10px}
.spec-line{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:.88rem;border-bottom:1px dashed rgba(56,189,248,.16);padding-bottom:9px}
.spec-line:last-child{border-bottom:0;padding-bottom:0}
.spec-line span{color:var(--muted)}
.spec-line strong{color:#E2F3FF;font-weight:700;text-align:right}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  padding:24px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:.26s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.stat-card i{font-size:1.1rem;color:var(--cyan);margin-bottom:12px;display:block}
.stat-value{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;color:#fff;line-height:1.15;display:block}
.stat-label{display:block;color:var(--muted);font-size:.86rem;margin-top:6px}

/* ---------- Download matrix ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.dl-card{
  padding:26px 24px;border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(13,25,54,.78),rgba(6,14,34,.9));
  border:1px solid var(--line);transition:.28s ease;position:relative;overflow:hidden;
}
.dl-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(420px 200px at 100% 0%,rgba(56,189,248,.14),transparent 68%);
}
.dl-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 0 34px rgba(37,99,235,.34)}
.dl-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.dl-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;flex:0 0 auto;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);font-size:1.15rem;
}
.dl-top h3{margin:0;font-size:1.08rem}
.dl-badge{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;margin-top:5px;
  color:#04121f;background:linear-gradient(135deg,#38BDF8,#22C55E);
}
.dl-badge.alt{background:linear-gradient(135deg,#60A5FA,#2563EB);color:#fff}
.dl-card p{color:#CBD5E1;font-size:.94rem;position:relative}
.dl-list{margin-top:14px;display:grid;gap:8px;position:relative}
.dl-list li{display:flex;gap:9px;align-items:flex-start;color:var(--muted);font-size:.88rem}
.dl-list i{color:var(--cyan);font-size:.72rem;margin-top:6px}

/* ---------- Compare ---------- */
.compare-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-col{
  padding:28px 26px;border-radius:var(--radius-l);border:1px solid var(--line);
  background:var(--glass-2);
}
.compare-col.win{border-color:var(--line-strong);box-shadow:0 0 34px rgba(37,99,235,.28);background:linear-gradient(165deg,rgba(15,32,66,.86),rgba(6,14,34,.94))}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.compare-head i{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(56,189,248,.12);color:var(--cyan);font-size:1rem}
.compare-head h3{margin:0;font-size:1.06rem}
.compare-list{display:grid;gap:12px}
.compare-list li{display:flex;gap:11px;align-items:flex-start;font-size:.93rem;color:#CBD5E1;line-height:1.6}
.compare-list i.ok{color:var(--green)}
.compare-list i.no{color:#F87171}
.compare-list i{font-size:.8rem;margin-top:6px}

/* ---------- Steps ---------- */
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-item{
  padding:24px 22px;border-radius:var(--radius);background:var(--glass);
  border:1px solid var(--line);position:relative;transition:.26s ease;
}
.step-item:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--glow)}
.step-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  font-weight:800;font-size:.95rem;color:#04121f;
  background:linear-gradient(135deg,#38BDF8,#2563EB);color:#fff;box-shadow:var(--glow-cyan);
  margin-bottom:14px;
}
.step-item h3{font-size:1rem;margin-bottom:8px}
.step-item p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- Spec board ---------- */
.spec-board{
  border-radius:var(--radius-l);border:1px solid var(--line);
  background:var(--glass-2);padding:10px 24px;backdrop-filter:blur(12px);
}
.spec-row{
  display:grid;grid-template-columns:260px 1fr;gap:20px;align-items:center;
  padding:16px 0;border-bottom:1px solid rgba(56,189,248,.12);
}
.spec-row:last-child{border-bottom:0}
.spec-key{color:var(--muted);font-size:.9rem;display:flex;align-items:center;gap:10px}
.spec-key i{color:var(--cyan);font-size:.85rem}
.spec-val{color:#E2F3FF;font-weight:600;font-size:.95rem}

/* ---------- News ---------- */
.news-section{position:relative;overflow:hidden}
.news-section .news-bg{
  position:absolute;inset:0;background-image:url('/assets/images/7431f217f70f322f.jpg');
  background-size:cover;background-position:center;opacity:.14;
}
.news-section::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.86),rgba(3,7,18,.96))}
.news-section .container{position:relative;z-index:2}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  padding:22px;border-radius:var(--radius);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(10px);transition:.26s ease;
  display:flex;flex-direction:column;gap:10px;
}
.news-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 0 28px rgba(37,99,235,.3)}
.news-card h3{font-size:1rem;margin:0;line-height:1.45}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--cyan)}
.news-card p{color:var(--muted);font-size:.88rem;margin:0;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:.76rem;color:var(--muted-2);border-top:1px solid rgba(56,189,248,.12);padding-top:12px}
.news-meta span{display:inline-flex;align-items:center;gap:6px}
.news-meta i{color:var(--cyan);font-size:.72rem}
.news-empty{
  padding:26px;border-radius:var(--radius);border:1px dashed var(--line-strong);
  color:var(--muted);text-align:center;background:rgba(8,18,41,.5);
}

/* ---------- Assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.assure-item{
  padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(13,25,54,.7),rgba(6,14,34,.86));transition:.26s ease;
}
.assure-item:hover{border-color:var(--line-strong);box-shadow:var(--glow-cyan)}
.assure-item i{display:block;font-size:1.2rem;color:var(--cyan);margin-bottom:12px}
.assure-item h3{font-size:1rem;margin-bottom:8px}
.assure-item p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius)!important;
  margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:1rem;
  padding:20px 22px;box-shadow:none!important;border-radius:var(--radius)!important;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(37,99,235,.14)}
.faq-accordion .accordion-button::after{
  filter:invert(78%) sepia(38%) saturate(1600%) hue-rotate(165deg) brightness(105%);
}
.faq-accordion .accordion-body{color:#CBD5E1;font-size:.94rem;padding:4px 22px 22px;line-height:1.7}

/* ---------- CTA ---------- */
.cta-panel{
  border-radius:var(--radius-l);border:1px solid var(--line-strong);
  background:linear-gradient(150deg,rgba(13,30,62,.9),rgba(5,11,26,.96));
  box-shadow:0 0 46px rgba(37,99,235,.28);
  overflow:hidden;display:grid;grid-template-columns:1.05fr .95fr;
}
.cta-copy{padding:38px 34px}
.cta-copy h2{margin-bottom:12px}
.cta-copy p{color:#CBD5E1;font-size:.96rem}
.cta-media{position:relative;min-height:280px}
.cta-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.cta-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,11,26,.96),rgba(5,11,26,.18) 55%)}
.pay-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.pay-badge{
  font-size:.78rem;font-weight:700;color:#DBEAFE;padding:7px 13px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line);
}
.cta-form{padding:38px 34px;background:rgba(3,7,18,.42);border-left:1px solid var(--line)}
.cta-form label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:7px;font-weight:600}
.cta-form .form-control,.cta-form .form-select{
  background:rgba(3,7,18,.75);border:1px solid var(--line);color:var(--text);
  border-radius:12px;padding:12px 14px;font-size:.93rem;
}
.cta-form .form-control::placeholder{color:var(--muted-2)}
.cta-form .form-control:focus,.cta-form .form-select:focus{
  background:rgba(3,7,18,.9);border-color:var(--line-strong);color:var(--text);
  box-shadow:0 0 0 3px rgba(56,189,248,.18);
}
.cta-form .form-select option{background:#081229;color:var(--text)}
.field{margin-bottom:16px}
.form-note{font-size:.8rem;color:var(--muted-2);margin:12px 0 0}
.related-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.related-row a{
  font-size:.85rem;font-weight:600;color:#DBEAFE;padding:8px 14px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);transition:.22s ease;
}
.related-row a:hover{background:rgba(56,189,248,.22);color:#fff;border-color:var(--line-strong)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  min-height:56px;padding:14px 20px;border-radius:999px;
  background:rgba(7,10,24,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(56,189,248,.55);
  color:#E2F3FF;font-weight:700;font-size:.86rem;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:.28s ease;overflow:visible;
}
.fab i{color:var(--cyan);font-size:1.02rem;transition:transform .4s ease}
.fab:hover{color:#fff;transform:scale(1.06);box-shadow:0 0 32px rgba(6,182,212,.7);border-color:#22D3EE}
.fab:hover i{transform:rotate(-12deg)}
.fab:active{transform:scale(.95)}
.fab-dot{
  position:absolute;top:6px;right:8px;width:10px;height:10px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px rgba(7,10,24,.9);animation:fabPulse 1.8s infinite;
}
.fab-label{white-space:nowrap}
@keyframes fabPulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.55;transform:scale(.82)}
}

/* ---------- Footer ---------- */
.site-footer{
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(5,11,26,.98));
  border-top:1px solid rgba(56,189,248,.14);
  padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer p{color:var(--muted);font-size:.9rem;max-width:520px}
.site-footer h4{font-size:.94rem;letter-spacing:.05em;text-transform:uppercase;color:#DBEAFE;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(56,189,248,.12);
  color:var(--muted-2);font-size:.82rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:#FDE68A;
  background:rgba(250,204,21,.10);border:1px solid rgba(250,204,21,.32);
  padding:6px 13px;border-radius:999px;font-size:.78rem;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-panel{max-width:620px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .step-track{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr}
  .cta-media{min-height:220px;order:-1}
  .cta-media::after{background:linear-gradient(180deg,rgba(5,11,26,.2),rgba(5,11,26,.96))}
  .cta-form{border-left:0;border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:14px 18px 20px;
    background:rgba(4,10,24,.98);border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.24s ease;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-toggle{display:inline-grid;place-items:center;margin-left:auto}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .cat-hero{padding:52px 0 48px}
  .dl-grid,.compare-wrap,.news-grid,.assure-grid{grid-template-columns:1fr}
  .spec-row{grid-template-columns:1fr;gap:6px}
  .spec-board{padding:8px 18px}
  .cta-copy,.cta-form{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr}
  .brand-text small{display:none}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;gap:14px}
  .step-track{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .header-actions{gap:8px}
  .header-actions .btn-primary{padding:10px 15px;font-size:.86rem}
  .fab{padding:13px 16px;bottom:84px}
  .fab-label{display:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,25,54,.60);
  --glass-2:rgba(9,18,41,.86);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.45);
  --blue:#2563EB;
  --blue-2:#3B82F6;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --amber:#FACC15;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --glow:0 0 22px rgba(37,99,235,.38);
  --glow-cyan:0 0 20px rgba(56,189,248,.35);
  --shadow-card:0 18px 44px rgba(2,6,23,.58);
  --container:1200px;
  --gap:28px;
}
*{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,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--holo)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
h1,h2,h3,h4{line-height:1.28;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,3.9vw,2.75rem)}
h2{font-size:clamp(1.45rem,2.6vw,2rem)}
h3{font-size:1.08rem}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 18px}
.section{padding:76px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));
  border-top:1px solid rgba(56,189,248,.10);
  border-bottom:1px solid rgba(56,189,248,.10);
}
.section-head{max-width:760px;margin-bottom:36px}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.08);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),#0EA5E9);
  font-weight:800;font-size:.95rem;letter-spacing:.03em;color:#fff;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.02rem;font-weight:800}
.brand-text small{font-size:.72rem;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);font-weight:600;font-size:.92rem;padding:9px 14px;border-radius:10px;
  transition:.22s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px var(--line-strong)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:1.1rem;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;padding:11px 20px;font-weight:700;font-size:.93rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),#0EA5E9);color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(37,99,235,.6);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff}
.btn-outline{background:rgba(255,255,255,.04);border-color:rgba(148,163,184,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn-sm{padding:8px 14px;font-size:.84rem;border-radius:10px}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;padding:56px 0 66px;overflow:hidden;
  background:linear-gradient(180deg,#030712 0%,#061024 60%,#030712 100%);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/7431f217f70f322f.jpg');
  background-size:cover;background-position:center;
  opacity:.20;filter:saturate(.85);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 18% 22%,rgba(37,99,235,.32),transparent 55%),
             radial-gradient(circle at 88% 78%,rgba(56,189,248,.18),transparent 52%),
             linear-gradient(180deg,rgba(3,7,18,.42),rgba(3,7,18,.95));
}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.82rem;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb span.sep{color:var(--muted-2)}
.crumb strong{color:var(--cyan);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:38px;align-items:center}
.hero-title{margin-bottom:16px}
.hero-sub{color:#CBD5E1;font-size:1.03rem;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 20px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.hero-points span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.83rem;font-weight:600;color:#CBD5E1;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;
}
.hero-points i{color:var(--cyan)}

.panel{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-l);
  padding:26px 24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 44px rgba(37,99,235,.30);
}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-top h2{font-size:1rem;margin:0;font-weight:700}
.live-dot{display:inline-flex;align-items:center;gap:8px;font-size:.76rem;font-weight:700;color:var(--green);text-transform:uppercase;letter-spacing:.08em}
.live-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.ring-wrap{position:relative;width:172px;height:172px;margin:0 auto 20px}
.ring{width:100%;height:100%;transform:rotate(-90deg)}
.ring-track{fill:none;stroke:rgba(148,163,184,.16);stroke-width:9}
.ring-bar{fill:none;stroke:url(#ringGrad);stroke-width:9;stroke-linecap:round;stroke-dasharray:326.7;stroke-dashoffset:2;filter:drop-shadow(0 0 8px rgba(56,189,248,.55))}
.ring-center{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.ring-center strong{font-size:1.75rem;font-weight:800;display:block;line-height:1.1}
.ring-center span{font-size:.74rem;color:var(--muted);display:block;max-width:110px;margin:6px auto 0}
.tier-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.tier-item{
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  border-radius:var(--radius-s);padding:12px 14px;transition:.24s ease;
}
.tier-item:hover{border-color:var(--line-strong);transform:translateX(3px)}
.tier-item i{color:var(--cyan);margin-top:3px}
.tier-item strong{display:block;font-size:.9rem}
.tier-item span{color:var(--muted);font-size:.82rem;line-height:1.5}
.panel .btn{width:100%}

/* ---------- Metrics ---------- */
.stat-card{
  height:100%;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 20px;
  transition:.28s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--glow)}
.stat-card i{color:var(--cyan);font-size:1.15rem;margin-bottom:12px;display:block}
.stat-value{font-size:1.5rem;font-weight:800;display:block;line-height:1.15;color:#fff}
.stat-label{color:var(--muted);font-size:.86rem;display:block;margin-top:6px;line-height:1.55}

/* ---------- Pillars ---------- */
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pillar{
  background:linear-gradient(160deg,rgba(13,25,54,.72),rgba(6,14,34,.85));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;transition:.28s ease;position:relative;overflow:hidden;
}
.pillar::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.5;
}
.pillar:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow-cyan)}
.pillar i{font-size:1.3rem;color:var(--cyan);margin-bottom:14px;display:block}
.pillar h3{font-size:1rem;margin-bottom:8px}
.pillar p{color:var(--muted);font-size:.88rem;margin-bottom:0}
.app-note{
  margin-top:26px;
  background:rgba(37,99,235,.10);
  border:1px solid var(--line);
  border-left:3px solid var(--cyan);
  border-radius:var(--radius);
  padding:24px 24px 18px;
}
.app-note h3{font-size:1.02rem}
.app-note ul{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.app-note li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:.87rem;line-height:1.55}
.app-note li i{color:var(--green);margin-top:4px}

/* ---------- Scenarios ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene{
  background:rgba(9,18,41,.72);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  display:flex;gap:16px;align-items:flex-start;
  transition:.26s ease;
}
.scene:hover{border-color:var(--line-strong);background:rgba(13,25,54,.78)}
.scene-ico{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(56,189,248,.10);border:1px solid var(--line);color:var(--cyan);font-size:1.05rem;
}
.scene h3{font-size:.99rem;margin-bottom:6px}
.scene p{color:var(--muted);font-size:.87rem;margin-bottom:8px}
.scene .fix{color:#A7F3D0;font-size:.83rem;display:flex;gap:8px;align-items:flex-start}
.scene .fix i{color:var(--green);margin-top:4px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding-top:8px}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:.95rem;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,var(--blue),#0EA5E9);box-shadow:var(--glow);
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.87rem;margin-bottom:0}
.step::after{
  content:"";position:absolute;top:30px;left:60px;right:-11px;height:1px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}
.step:last-child::after{display:none}

/* ---------- Compare table ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(9,18,41,.6)}
.cmp-table{width:100%;min-width:620px;border-collapse:collapse}
.cmp-table th,.cmp-table td{padding:15px 18px;text-align:left;font-size:.9rem;border-bottom:1px solid rgba(148,163,184,.12)}
.cmp-table thead th{
  background:rgba(37,99,235,.20);color:#DBEAFE;font-size:.78rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;
}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover{background:rgba(56,189,248,.05)}
.cmp-table td:first-child{color:#E2E8F0;font-weight:600}
.cmp-table .bad{color:#FCA5A5}
.cmp-table .good{color:#86EFAC;font-weight:600}

/* ---------- Payments ---------- */
.pay-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pay-card{
  background:rgba(9,18,41,.7);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:.26s ease;
}
.pay-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--glow)}
.pay-card .pay-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.pay-card .pay-top i{font-size:1.3rem;color:var(--cyan)}
.pay-card strong{font-size:.98rem}
.pay-card p{color:var(--muted);font-size:.84rem;margin:0}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;
  letter-spacing:.05em;text-transform:uppercase;color:var(--cyan);
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  border-radius:999px;padding:4px 10px;margin-top:12px;
}
.notice{
  margin-top:24px;display:flex;gap:14px;align-items:flex-start;
  background:rgba(250,204,21,.07);border:1px solid rgba(250,204,21,.28);
  border-radius:var(--radius);padding:18px 20px;color:#FDE68A;font-size:.88rem;
}
.notice i{color:var(--amber);margin-top:4px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;transition:.24s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:0 0 24px rgba(37,99,235,.22)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 56px 18px 20px;
  font-weight:700;font-size:.98rem;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:.85rem;transition:.25s ease;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-body{padding:0 20px 20px;color:var(--muted);font-size:.9rem}

/* ---------- News list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.28s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.news-thumb{display:block;position:relative;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.news-meta{
  display:inline-flex;align-items:center;gap:7px;font-size:.74rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;color:var(--cyan);margin-bottom:10px;
}
.news-body h3{font-size:.98rem;margin-bottom:8px}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{color:var(--muted);font-size:.85rem;margin-bottom:0}
.news-foot{margin-top:26px;display:flex;justify-content:center}
.empty-note{
  text-align:center;color:var(--muted);background:rgba(9,18,41,.6);
  border:1px dashed var(--line);border-radius:var(--radius);padding:40px 20px;
}

/* ---------- CTA form ---------- */
.cta-box{
  background:linear-gradient(150deg,rgba(13,25,54,.9),rgba(6,14,34,.94));
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  padding:38px 34px;box-shadow:0 0 50px rgba(37,99,235,.28);
}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.cta-grid p{color:var(--muted)}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;color:#CBD5E1;font-size:.9rem}
.cta-list i{color:var(--green);margin-top:4px}
.form-grid{display:grid;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.82rem;font-weight:600;color:#CBD5E1}
.field input,.field select{
  width:100%;background:rgba(3,7,18,.7);border:1px solid var(--line);
  border-radius:var(--radius-s);padding:13px 14px;color:var(--text);transition:.22s ease;
}
.field input::placeholder{color:var(--muted-2)}
.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{font-size:.79rem;color:var(--muted-2);margin:0}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-s);
  background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.4);
  color:#BBF7D0;font-size:.86rem;
}
.form-msg.show{display:block}

/* ---------- Footer ---------- */
.site-footer{
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(2,5,14,1));
  border-top:1px solid rgba(56,189,248,.14);
  padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(148,163,184,.12)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.site-footer p{color:var(--muted);font-size:.86rem;max-width:520px}
.site-footer h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.09em;color:#CBD5E1;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--muted);font-size:.86rem}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  padding-top:22px;color:var(--muted-2);font-size:.8rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;
  color:#FDE68A;background:rgba(250,204,21,.08);border:1px solid rgba(250,204,21,.28);
  border-radius:999px;padding:6px 14px;
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  min-height:56px;padding:10px 20px;border-radius:999px;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
                   linear-gradient(120deg,var(--cyan),#A855F7);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#fff;font-weight:700;font-size:.86rem;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:.26s ease;opacity:.85;
}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 30px rgba(6,182,212,.7);color:#fff}
.fab:active{transform:translateY(0) scale(.97)}
.fab i{color:var(--cyan);font-size:1.05rem}
.fab .fab-dot{
  position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px #F43F5E;animation:pulse 1.4s infinite;
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:var(--glass-2);border:1px solid var(--line-strong);
    border-radius:var(--radius);padding:12px;margin-left:0;
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    box-shadow:var(--shadow-card);
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px;font-size:.94rem}
  .nav-toggle{display:grid;place-items:center;order:3}
  .brand{order:1}
  .header-actions{order:2;margin-left:auto}
  .pillar-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .pay-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-sub{max-width:none}
  .cta-grid{grid-template-columns:1fr}
  .app-note ul{grid-template-columns:1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .cat-hero{padding:40px 0 52px}
  .header-actions .btn{padding:9px 13px;font-size:.82rem}
  .brand-text small{display:none}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-box{padding:28px 20px}
  .panel{padding:22px 18px}
  .fab{bottom:88px;padding:10px 16px}
  .fab span{display:none}
}
@media (max-width:520px){
  .pillar-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .pay-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .header-actions .btn-ghost{display:none}
  .brand-mark{width:42px;height:42px;border-radius:12px;font-size:.88rem}
  .ring-wrap{width:150px;height:150px}
  .cmp-table th,.cmp-table td{padding:12px 14px}
}

/* 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}